This ball screw comprises: a screw shaft having a spiral outer circumferential screw groove formed on the outer circumferential surface; a nut that is disposed in the surrounding of the screw shaft and that has a spiral inner circumferential screw groove which is formed in the inner circumferential surface and which face the outer circumferential screw groove; a plurality of balls housed in a ball rolling passage formed by the outer circumferential screw groove and the inner circumferential screw groove facing each other; a circulation member for circulating the balls along the ball rolling passage; and a contact seal disposed between the end of the nut and the screw shaft. The outer circumferential screw groove has a grinding relief groove. The contact seal is an elastically deformable ring-shaped plate material in which the inner circumferential edge thereof makes contact with the outer circumferential surface of the screw shaft and which has a protrusion fitted with the grinding relief groove.
F16H 25/24 - Eléments essentiels pour ces mécanismes, p.ex. vis, écrous
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaison; Eléments essentiels pour l'utilisation de ces organes
In a thrust needle roller bearing, even in an environment where an amount of lubricating oil is small, the amount of lubricating oil is held and seizure is prevented. The thrust needle roller bearing includes a plurality of needle rollers, a bearing ring (31) having an annular raceway surface (31a) on which the needle rollers roll, and a cage that rollably holds the needle rollers, in which an oil repellent film (41a) is formed by oil repellent treatment on a portion of the raceway surface (31a) other than a portion in contact with the needle rollers.
F16C 19/30 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à rouleaux essentiellement du même gabarit, disposés dans une ou plusieurs rangées circulaires, p.ex. roulements à aiguilles pour charges axiales principalement
Provided is an angular ball bearing that reduces the amount of heat generated, suppresses separation originating from inclusions even if surface pressure at contact sites becomes high, is low in cost, and has long life. This angular ball bearing comprises: an inner race that has an inner raceway groove with a circular-arc-shaped cross-section in an outer peripheral surface; an outer race that has an outer raceway groove with a circular-arc-shaped cross-section in an inner peripheral surface; and a plurality of balls disposed so as to be able to roll between the inner raceway groove and the outer raceway groove. The groove curvature radius ratio Ri of the inner raceway groove to the ball diameter is 54–57%, the groove curvature radius ratio Ro of the outer raceway groove to the ball diameter is 51–58%, and at least the inner race and the outer race comprise alloy steel that includes 0.85–1.15% by mass of carbon, 0.40–0.90% by mass of silicon, 0.55–1.20% by mass of manganese, 1.30–1.90% by mass of chromium, 0.30% by mass or less of molybdenum, 0.30% by mass or less of nickel, 0.20% by mass or less of copper, 0.025% by mass or less of sulfur, 0.020% by mass or less of phosphorus, and 15 ppm by mass or less of oxygen, with the remainder being iron and unavoidable impurities.
F16C 33/58 - Chemins de roulement; Bagues de roulement
F16C 19/16 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges à la fois radiales et axiales avec une seule rangée de billes
A ball screw (10) comprises: a screw shaft (20) formed with a screw shaft-side raceway groove (21); a nut (30) formed with a nut-side raceway groove (31) and having a through-hole (32) communicating an outer peripheral surface (33) with the nut-side raceway groove (31); a plurality of balls (26) that roll on a load raceway (25); and a circulating part (40) that is attached to the through-hole (32) to form a ball returning path (48) for circulating the balls (26). The ball screw (10) has a sealing member (50) made of resin or rubber that seals at least a part of a gap between an inner peripheral surface of the through-hole (32) of the nut (30) and an outer peripheral surface of the circulating part (40). This makes it possible to prevent leakage of grease through the gap between the circulating part and the through-hole formed on the nut, and entry of external foreign matter through the gap.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaison; Eléments essentiels pour l'utilisation de ces organes
F16H 25/24 - Eléments essentiels pour ces mécanismes, p.ex. vis, écrous
A steering device includes a cylindrical steering column that extends in an axial direction. The steering column includes: an upper column; a lower column; and a fixing member. The fixing member includes a cylindrical part, and the cylindrical part includes: a small diameter part that is fitted to the lower column; a curved part that has an outer circumferential surface whose outer diameter increases toward the other side in the axial direction; and a large diameter part whose outer diameter is larger than an outer diameter of the small diameter part.
Provided is a control device for an electric power steering device including a first control portion that derives a first command value based on a steering torque and a second control portion that derives a second command value based on a target command value for a driving support function, where the first control portion generates the first command value by extracting a command value corresponding to a vibration suppression component from a command value including the vibration suppression component derived from the steering torque, adjusting the derived command value according to an operating state of a function of the second control portion, and adding the extracted command value to the adjusted command value.
B62D 6/08 - Dispositions pour la commande automatique de la direction en fonction des conditions de conduite, qui sont détectées et pour lesquelles une réaction est appliquée, p.ex. circuits de commande réagissant uniquement au couple d'entrée
A steering device includes: a steering shaft which extends along a central axis and to which a steering wheel is coupled on one side in an axial direction; a tubular steering column which is disposed on an outer circumferential side of the steering shaft and extends in the axial direction; and a gearbox which is disposed on the other side in the axial direction of the steering column and is fixed to the steering column. The steering column includes a fixing member provided at an end on the other side in the axial direction and fixed to the gearbox, and an outer circumferential surface on one side in the axial direction of the fixing member has an outer diameter which increases toward the other side in the axial direction.
This method for diagnosing a rolling device in which rolling elements and peripheral members are lubricated using a lubricant includes: applying an alternating-current voltage to an electric circuit comprising the rolling elements and the peripheral members; measuring an impedance and a phase angle of the electric circuit when the alternating-current voltage is applied; deriving an evaluation value representing a lubrication state inside the rolling device, using a calculation formula defined by the measured impedance and phase angle, an angular frequency of the alternating-current voltage, the number of rolling elements in the rolling device, and the number of contact points; and using the evaluation value to diagnose the lubrication state of the rolling device.
Provided is a sliding component in which a low-hardness first component and a high-hardness second component slide with a lubricant therebetween, wherein the configurational relationship between microroughness and large undulations imparted to the first component is optimized to enhance both lubricant retention and wettability, and to further improve anti-seizing properties. In the sliding component, the first component and the second component with higher hardness than the first component slide with a lubricant therebetween. The sliding component is imparted, in an area contacting the second component in the first component, with an isotropic texture in which the valley surface area is 1000 μm2/mm to 20000 μm2/mm, and the RLo (λc: 0.08 mm) is from 1% to 12%.
A deep groove ball bearing includes an outer ring, an inner ring, a plurality of balls, and a seal member. An axial cross-sectional width is smaller than a radial cross-sectional height, a thickness of the inner ring is greater than a thickness of the outer ring, and a pitch diameter of the ball is larger than a median diameter between an inner diameter of the inner ring and an outer diameter of the outer ring A radial dimension between an outer diameter of a shoulder portion of the inner ring and an inner diameter of the seal member is greater than the thickness of the outer ring. As a result, width and weight can be reduced, a load capacity can be secured, grease leakage can be prevented, and a service lifespan can be extended.
F16C 19/06 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges radiales principalement avec une seule rangée de billes
F16C 33/58 - Chemins de roulement; Bagues de roulement
F16C 33/66 - Pièces ou détails particuliers pour la lubrification
F16C 33/80 - Dispositifs d'étanchéité pour roulements à billes ou à rouleaux à labyrinthes
11.
ROLLING DEVICE DIAGNOSING METHOD, DIAGNOSING DEVICE, AND PROGRAM
This method for diagnosing a rolling device comprising rolling elements and peripheral members of the rolling elements includes: applying an alternating-current voltage to an electric circuit comprising the rolling elements and the peripheral members; measuring an impedance and a phase angle when the alternating-current voltage is applied; correcting the measured impedance and the measured phase angle using a correction formula based on a solution of Kirchhoff's laws, defined in accordance with a resistance and a reactance resulting from a wiring component in the electric circuit; and calculating a lubricating film thickness and a metal contact ratio on the basis of the corrected impedance and the corrected phase angle.
This power source device comprises a DC power source (13), inverters (42A, 42B) to which power is supplied from the DC power source, capacitors (CA1, CA2, CB1, CB2) connected in parallel to the inverters between the DC power source and the inverters, reverse connection protection circuits (44A, 44B) connected between the DC power source and the capacitors to block a flow of current from the capacitors to the DC power source through a positive electrode side power source line (Lpa) of the DC power source, and overvoltage protection circuits (45A, 45B) that each control a voltage between both ends of a capacitor such that the voltage becomes equal to or smaller than a predetermined voltage if the voltage becomes equal to or larger than the predetermined voltage.
This brush unit is attached to a conductor, and contacts a shaft conduction part provided to a rotary shaft to electrically connect the conductor and the shaft conduction part. The brush unit comprises a recessed holder, a brush that contacts the shaft conduction part through an opening in the holder, and an urging part that urges the brush. The brush has a first brush part, and a second brush part having a larger external shape than the first brush part. An overhang portion of the holder faces a surface of the second brush part, to which the first brush part connects, in an urging direction of the urging part.
H01R 39/39 - Porte-balais dans lesquels le balai est fixé dans le support
H02K 5/14 - Moyens de support ou de protection des balais ou des porte-balais
H02K 13/00 - Association structurelle de collecteurs de courant et de moteurs ou de génératrices, p.ex. plaques de montage des balais ou connexions avec les enroulements; Agencement des collecteurs de courant dans les moteurs ou les génératrices; Dispositions pour améliorer la commutation
This ball screw has: a screw shaft having an outer circumferential screw groove formed therein; a nut having an inner circumferential screw groove formed therein; a plurality of balls accommodated in a rolling route formed by the outer circumferential screw groove and the inner circumferential screw groove facing each other; and a return tube which returns the balls from one end to the other end of the rolling route, wherein the return tube has a tongue which protrudes toward the rolling route and scoops the balls from the rolling route, and the tongue has a shape having a width gradually reduced from a root of the tongue toward the leading end thereof.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaison; Eléments essentiels pour l'utilisation de ces organes
A steering device includes: an upper column having a cylindrical shape that is disposed on a radially outer side of a steering shaft; a lower column having a cylindrical shape that is fitted to the upper column and is capable of relatively moving in an axial direction with respect to the upper column; an attachment portion that is attached to the upper column and provided with a column long hole; a column bracket that includes a side plate portion located on a side of the upper column and is attached to a vehicle body; a liner slot that is inserted into the column long hole of the attachment portion and restricts an axial movement; and a pin that extends along a vehicle width direction and penetrates through the side plate portion and the liner slot, in which the liner slot is provided with a through-hole through which the pin penetrates.
This roller bearing comprises: an inner race and an outer race; a plurality of rollers; and a holder on which a plurality of columnar parts extending in the axial direction of the central axis are provided along the circumferential direction, and a roller is held between two columnar parts adjacent in the circumferential direction among the plurality of columnar parts. As viewed in the axial direction of the central axis, when a pocket gap is defined as the distance obtained by subtracting the maximum diameter of the rollers from the distance along the pitch circle between a first columnar part and a second columnar part adjacent in the circumferential direction, a pocket gap ratio obtained by dividing the pocket gap by the maximum diameter of the rollers is greater than or equal to 0.005 and less than 0.01.
F16C 23/08 - Roulements à billes ou à rouleaux à autoréglage
F16C 19/38 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à rouleaux essentiellement du même gabarit, disposés dans une ou plusieurs rangées circulaires, p.ex. roulements à aiguilles pour charges à la fois axiales et radiales avec plusieurs rangées de rouleaux
F16C 33/48 - Cages à rouleaux ou à aiguilles pour rangées de rouleaux ou d'aiguilles multiples
Provided is a linear motion guide device including: a guide rail; a slider body; an end cap; a roller; and a retainer that comprises an upper retainer portion, a lower retainer portion, and an intermediate retainer portion. The upper retainer portion, the intermediate retainer portion, and the lower retainer portion form an approximately V-shaped plate in cross section. A surface portion of each of the upper retainer portion, the lower retainer portion and the intermediate retainer portion that contacts a roller end face has a first flange surface and a second flange surface. The first flange surface and the second flange surface are configured to be flush with each other, or one of the flange surfaces protrudes with respect to the other flange surface.
This motor control device comprises: a current command value calculation unit (41) that calculates a current command value for driving a motor; a current value detection unit (48) that detects current flowing in the motor; a current control unit (52) that outputs a first voltage command value in accordance with the deviation between a current detection value, which is the detection value of the current detected by the current value detection unit (48), and the current command value; a voltage disturbance suppression unit (53) that calculates a second voltage command value by adding the output of a delay element (55) to the first voltage command value, and that inputs the second voltage command value into the delay element (55); and a driving circuit (47) for driving the motor on the basis of the second voltage command value.
This roller bearing comprises: an inner ring and an outer ring extending in a circumferential direction around a central axis; a plurality of rollers disposed between the inner ring and the outer ring; and a cage in which a plurality of pillars extending in an axial direction of the central axis are provided along the circumferential direction, and the roller is held between two circumferentially adjacent pillars of the plurality of pillars. When the two circumferentially adjacent pillars are defined as a first pillar and a second pillar, the roller disposed between the first pillar and the second pillar is defined as a first roller, and a circle centered on the central axis and passing through the axial center of the first roller is defined as a pitch circle, a first distance that is a moving distance of the first roller along the circumference of the pitch circle when viewed from the axial direction is greater than 0.5% and less than or equal to 1.8% with respect to a second distance that is a separation distance between the first pillar and the second pillar along the circumference of the pitch circle.
F16C 33/48 - Cages à rouleaux ou à aiguilles pour rangées de rouleaux ou d'aiguilles multiples
F16C 19/38 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à rouleaux essentiellement du même gabarit, disposés dans une ou plusieurs rangées circulaires, p.ex. roulements à aiguilles pour charges à la fois axiales et radiales avec plusieurs rangées de rouleaux
F16C 23/08 - Roulements à billes ou à rouleaux à autoréglage
A nut according to the present disclosure comprises: a cylindrical nut body through which a screw shaft is inserted; a plurality of inner track surfaces and a plurality of S-shaped groove surfaces recessed radially outward from the inner circumferential surface of the nut body; and a flange projecting radially outward from the outer circumferential surface of the nut body. The flange comprises at least one or more partial flanges extending only partially in the circumferential direction along the outer circumferential surface of the nut body. The space between one end and the other end of the partial flange in the circumferential direction in the case of one partial flange, and the space between partial flanges adjacent to each other in the circumferential direction in the case of two or more partial flanges serve as a relief space into which the wall part of the nut body can be released. On the radially inner side of the relief space, one S-shaped groove surface out of the plurality of S-shaped groove surfaces is disposed.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaison; Eléments essentiels pour l'utilisation de ces organes
F16H 25/24 - Eléments essentiels pour ces mécanismes, p.ex. vis, écrous
21.
ROLLING BEARING AND ROLLING BODY PRODUCTION METHOD
The present invention provides a rolling bearing and a rolling body production method that make it possible to improve separation life. Provided is a rolling bearing comprising an inner ring (2), an outer ring (3), and a rolling body (4), wherein: the rolling body (4) has an HRC hardness of not less than 61.1 and a residual austenite amount of not more than 31 vol%; and the ratio of the hardness of the rolling body (4) to the hardness of the inner ring (2) and the outer ring (3) is not less than 1.
C21D 9/36 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour galets de roulement
F16C 19/22 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à rouleaux essentiellement du même gabarit, disposés dans une ou plusieurs rangées circulaires, p.ex. roulements à aiguilles
A reverse-input blocking clutch, including a pressed member having a pressed surface, an input member having an input-side engaging portion coaxially arranged on an inner side in a radial direction of the pressed surface, an output member having an output-side engaging portion coaxially arranged further on the inner side in the radial direction than the input-side engaging portion, an engaging element having a pressing surface facing the pressed surface; an input-side engaged portion engageable with the input-side engaging portion; and an output-side engaged portion engageable with the output-side engaging portion; the engaging element movable in a first direction as a direction away from or toward the pressed surface, and an elastic member elastically held between the output-side engaging portion and the engaging element in the first direction.
F16D 41/10 - Roues libres ou embrayages à roue libre avec organes d'accouplement intermédiaires d'arrêt entre une surface intérieure et une surface extérieure avec moyens de modifier le fonctionnement en roue libre à inversion automatique
F16D 43/21 - Embrayages automatiques à commande interne actionnés entièrement mécaniquement commandés par le couple, p.ex. embrayages à déclenchement en cas de surcharge, embrayages à glissement avec dispositifs par lesquels le couple fait varier la pression d'embrayage avec organes à friction
23.
CROWN-TYPE RETAINER FOR BALL BEARINGS, AND BALL BEARING
An outer diameter of a claw portion is smaller than an outer diameter of a main portion, a radial width of the claw portion is ½ or less of a radial width of the main portion, an axial width from an upper surface of a connection portion of a pillar portion to a bottom surface of the main portion is ½ or less of an axial width of a crown type cage for a ball bearing, and in the main portion, an opening portion is provided between adjacent pockets.
F16C 19/06 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges radiales principalement avec une seule rangée de billes
A crown retainer has a circular ring section and a plurality of columns that project from the ring section to one side in the axial direction and are formed such that the columns are arranged along the circumferential direction. A pocket where one of a plurality of balls is placed is formed between adjacent columns. The inner surface of the pocket extends along a cylinder having a central axis parallel to the radial direction. At least a portion of the ring section corresponding to the bottom of the pocket has a projection that protrudes inward or outward in the radial direction.
F16C 33/41 - Cages à billes comportant une bague portant des doigts de séparation des éléments de roulement
F16C 19/06 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges radiales principalement avec une seule rangée de billes
A drive wheel, comprising: a first input shaft and a second input shaft coaxially disposed; a first output shaft and a second output shaft disposed on different axes; a first spur gear mechanism that transmits rotational force of the first input shaft to the first output shaft; a second spur gear mechanism that transmits rotational force of the second input shaft to the second output shaft; a wheel connected to an axle; a pivot shaft that supports the wheel in a pivotable manner via the axle; a first power conversion mechanism that transmits the rotational force of the first output shaft to one end portion of the axle; a second power conversion mechanism that transmits the rotational force of the second output shaft to another end portion of the axle; a first slide mechanism; a second slide mechanism; and an elastic member.
B62B 5/00 - Accessoires ou détails spécialement adaptés aux voitures à bras
F16H 1/14 - Transmissions à engrenages pour transmettre un mouvement rotatif sans engrenages à mouvement orbital comportant uniquement deux organes engrenés dont les axes ne sont pas parallèles comportant uniquement des engrenages coniques
A linear motion guide device having a long-life slider is provided. The linear motion guide device includes a guide rail, a plurality of rolling elements, and a slider. The material of the slider body 11 is alloy steel containing 0.1 mass % or more and less than 0.3 mass % of C, 0.5 mass % or more and 1.5 mass % or less of Cr, and 0.1 mass % or more and 0.4 mass % or less of Si, with the balance being Fe and inevitable impurities. An amount of retained austenite in a surface layer 14F of a slider-side rolling groove 14 subjected to a carburizing heat treatment is 15 vol % or more and 45 vol % or less. The surface hardness of the slider-side rolling groove 14 is Hv 650 or more.
A steering device includes an input shaft coupled to a steering wheel and extending in an axial direction, an output shaft fitted to the input shaft and capable of relatively moving in the axial direction with respect to the input shaft, an upper column having a cylindrical shape that is disposed on a radially outer side of the input shaft and rotatably supports the input shaft, a lower column having a cylindrical shape that is fitted to the upper column and capable of relatively moving in the axial direction with respect to the upper column, a column bracket that includes a side plate portion located on the side of the upper column and is detachable from a vehicle body, a support member provided on the upper column, and a pin that is provided to extend along the radial direction and penetrate through the side plate portion and the support member. The support member includes a through-hole through which the pin penetrates, a long hole extending from the through-hole toward the steering wheel, and a stopper positioned between the through-hole and the long hole and supporting the pin.
B62D 1/19 - Colonnes de direction susceptibles de déformation ou réglables, p.ex. inclinables comportant des dispositions pour absorber l'énergie, p.ex. susceptibles de déformation ou repliables
B62D 1/189 - Colonnes de direction susceptibles de déformation ou réglables, p.ex. inclinables comportant un réglage axial et de l'inclinaison la totalité de la colonne de direction étant inclinable comme un tout
A ball screw device has: a screw shaft rotationally moving during use, a nut having a protruding non-rotating side engaging portion at an end portion on one side in an axial direction, the nut linearly moving during use, balls arranged between a shaft-side and nut-side grooves, and a driving member fixed to the screw shaft having an arc-shaped rotating-side engaging groove portion into which the non-rotating side engaging portion can be inserted in the axial direction, and which can be engaged with the non-rotating side engaging portion in a circumferential direction.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaison; Eléments essentiels pour l'utilisation de ces organes
F16H 25/24 - Eléments essentiels pour ces mécanismes, p.ex. vis, écrous
A ball bearing includes an inner ring, an outer ring, a plurality of balls rollably disposed between an inner ring raceway surface of the inner ring and the outer ring raceway surface of the outer ring, and a cage in which pockets rollably holding the balls are formed at intervals in a circumferential direction. An inclination angle of a cylindrical surface of each of the pockets is set more than 0° and less than a contact angle of the ball bearing, the cylindrical surface and a corresponding ball are in contact with each other at an inner side in a cage thickness direction relative to a position where a rotation axis of the ball intersects with the cylindrical surface, and a space is formed at a portion from a contact position to a circumferential surface of the cage on a side closer to the intersection position.
F16C 19/16 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges à la fois radiales et axiales avec une seule rangée de billes
An object is to provide an evaluation method for detecting the amount of hydrogen supposed to influence white structure flaking in a simple manner in a short period of time and evaluating possibility of white structure flaking from the detected hydrogen amount. The provided is a possibility evaluation method of white structure flaking that, by measuring an amount of hydrogen gas generated under a condition simulating a use condition of a rolling device used in industrial equipment and existing in an atmosphere, evaluates possibility of white structure flaking in the rolling device.
F16C 19/52 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec dispositifs affectés par des conditions anormales ou indésirables
A grease composition including (A) a trimellitic acid ester, (B1) phenyl alpha naphthylamine, (B2) an alkyl diphenylamine, (C1) a succinic acid half ester, (C2) a sorbitan monoester, and (D) a urea-based thickening agent. Due to this grease composition, peeling prevention, rust prevention, and oxidation resistance properties are excellent, and furthermore a long fatigue life can be sustained in a rolling device or similar in which the grease is enclosed.
C10M 169/00 - Compositions lubrifiantes caractérisées en ce qu'elles contiennent comme constituants un mélange d'au moins deux types d'ingrédients, couverts par les groupes précédents, choisis parmi les matériaux de base, les épaississants ou les additifs, chacun
F16C 19/06 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges radiales principalement avec une seule rangée de billes
F16C 33/66 - Pièces ou détails particuliers pour la lubrification
C10M 115/08 - Compositions lubrifiantes caractérisées en ce que l'épaississant est un composé organique non macromoléculaire, autre qu'un acide carboxylique ou ses sels contenant de l'azote
C10M 133/12 - Amines, p.ex. polyalkylènepolyamines; Amines quaternaires comportant des groupes amine liés à un atome de carbone d'un cycle aromatique à six chaînons
A reverse-input blocking clutch, comprising a pressed member, an input member, an output member, and an engaging element, the pressed member including a first pressed member element having a pressed surface around an inner peripheral surface thereof and a second pressed member element having a mounting portion fixed to a portion that does not rotate during use, the engaging element configured to transmit rotational torque input to the input member to the output member by moving in a direction away from the pressed surface and to completely block rotational torque reversely input to the output member or transmit a part of the rotational torque reversely input to the output member to the input member and block a remaining part thereof.
F16D 41/10 - Roues libres ou embrayages à roue libre avec organes d'accouplement intermédiaires d'arrêt entre une surface intérieure et une surface extérieure avec moyens de modifier le fonctionnement en roue libre à inversion automatique
This rack guide device comprises: an accommodating wall portion having an interior space that extends in an orthogonal direction, a first opening that opens toward a rack bar, and a second opening that opens from the interior space in a direction opposite to the rack bar; an adjustment cover that closes the second opening; a pressure pad that comes into contact with the rack bar from the first opening; and a coil spring and an O-ring that are disposed between the adjustment cover and the pressure pad. One of the adjustment cover and the pressure pad has a facing surface that faces the other of the adjustment cover and the pressure pad. An annular groove is provided to the facing surface. The inner surface of the annular groove has an inner circumferential surface and an outer circumferential surface facing each other. The annular groove has a narrow groove for which the groove width between the inner circumferential surface and the outer circumferential surface is less than the line diameter of the O-ring before assembly, and a wide groove for which the groove width is greater than the line diameter of the O-ring before assembly.
B62D 3/12 - Boîtiers de direction mécaniques du type à crémaillère
F16H 19/04 - Transmissions comportant essentiellement et uniquement des engrenages ou des organes de friction et qui ne peuvent transmettre un mouvement rotatif indéfini pour convertir un mouvement rotatif en mouvement alternatif et vice versa comportant une crémaillère et pignon
34.
MOTOR CONTROL DEVICE AND ELECTRIC POWER STEERING DEVICE
A motor control device includes temperature detection elements that are mounted on a circuit board on which a first power conversion circuit and a second power conversion circuit are mounted and are arranged at a position between the first power conversion circuit and the second power conversion circuit.
H02P 29/68 - Commande ou détermination de la température du moteur ou de l'entraînement basée sur la température d’un composant d’entraînement ou d’un composant semi-conducteur
H02P 27/08 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p.ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs avec modulation de largeur d'impulsions
B62D 5/04 - Direction assistée ou à relais de puissance électrique, p.ex. au moyen d'un servomoteur relié au boîtier de direction ou faisant partie de celui-ci
35.
LOAD ESTIMATING DEVICE FOR ROLLING BEARING, CONTROL DEVICE FOR MECHANICAL DEVICE PROVIDED WITH ROLLING BEARING, LOAD ESTIMATING METHOD, AND PROGRAM
This load estimating device for a rolling bearing comprises: a vibration sensor for measuring vibrations of the rolling bearing during rotation; a rotational speed sensor for measuring the rotational speed of the rolling bearing during rotation; a deriving means for deriving a vibration value for a predetermined vibration frequency, using vibration information measured by the vibration sensor; and an estimating means for estimating a load acting on the rolling bearing, said load corresponding to the rotational speed measured by the rotational speed sensor and the vibration value derived by the deriving means, using a table defining a correspondence relationship between the load acting on the rolling bearing, the vibration value for the predetermined vibration frequency, and the rotational speed.
G01L 5/00 - Appareils ou procédés pour la mesure des forces, du travail, de la puissance mécanique ou du couple, spécialement adaptés à des fins spécifiques
F03D 7/02 - Commande des mécanismes moteurs à vent les mécanismes moteurs à vent ayant l'axe de rotation sensiblement parallèle au flux d'air pénétrant dans le rotor
F03D 80/70 - Dispositions de roulement ou de graissage
2) between one pressing surface (13) of the pair of pressing surfaces (13) and a pressed surface (6) to the rotation center (O) of the output member (4).
F16D 43/18 - Embrayages automatiques à commande interne actionnés entièrement mécaniquement commandés par la vitesse angulaire avec masses centrifuges constituant elles-mêmes les organes d'embrayage les organes d'embrayages étant à friction
F16D 41/08 - Roues libres ou embrayages à roue libre avec organes d'accouplement intermédiaires d'arrêt entre une surface intérieure et une surface extérieure avec moyens de modifier le fonctionnement en roue libre
The present invention provides a grease composition which makes it possible to prevent deterioration in sealing properties even when base oil having a kinetic viscosity of as low as, for example, 5-40 mm2/s is used and which makes it possible to realize both sealing properties and a decrease in torque. The present invention also provides a rolling device. A sealing member (12a) comprises a plurality of sealing lips (114), (115), (116) each of which is made of an elastic material. A grease composition is sealed in void parts (121), (122) that are each located between a sliding surface of a slinger (106), on which the plurality of sealing lips slide, and two adjacent sealing lips. This grease composition contains base oil and a polar polymer. The polar polymer has a weight-average molecular weight of 5,000-140,000.
F16C 33/66 - Pièces ou détails particuliers pour la lubrification
F16C 19/18 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges à la fois radiales et axiales avec plusieurs rangées de billes
38.
WATER INTRUSION DETECTION METHOD, WATER INTRUSION DETECTION DEVICE, AND PROGRAM FOR DEVICE USING LUBRICANT
A water intrusion detection method for detecting intrusion of water into a lubricant in a device that is configured such that a plurality of portions thereof are lubricated with the lubricant, the method comprising: measuring the impedance of an electrical circuit formed of the plurality of portions by applying an alternating-current voltage to the electrical circuit while sweeping the frequency of the alternating-current voltage, and comparing characteristics indicated by the real and imaginary parts of the measured impedance with characteristics indicated by the real and imaginary parts of the impedance measured when water is not mixed with the lubricant, to detect the intrusion of water into the lubricant.
F16C 19/04 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges radiales principalement
F16C 19/52 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec dispositifs affectés par des conditions anormales ou indésirables
The nut has a first fitting surface provided with a first retaining ring groove on an end portion on the other side in the axial direction; the fitting cylinder, at an end portion on the one side in the axial direction, has a second fitting surface provided with a second retaining ring groove in a portion facing the first retaining ring groove with regard to a radial direction; and the retaining ring is engaged so as to span between the first retaining ring groove and the second retaining ring groove.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaison; Eléments essentiels pour l'utilisation de ces organes
TWO-SPEED TRANSMISSION, METHOD OF LEARNING μ-V CHARACTERISTICS OF SAID TWO-SPEED TRANSMISSION, AND METHOD OF CONTROLLING GEARSHIFT BY SAID TWO-SPEED TRANSMISSION
[Problem] To prevent the occurrence of gearshift shock in a two-speed transmission which is able to shift a reduction ratio between two stages, high and low. [Solution] A two-speed transmission 1 is provided with a learning function in which, on condition that predetermined learning start conditions are met, mode changeover between a first mode and a second mode is carried out, and in the inertia phase during the mode changeover, the coefficient of friction between first friction plates 30 and second friction plates 31 is computed on the basis of the output torque of a drive motor 2 and the angular acceleration of the output shaft 11 of the drive motor 2, to obtain a μ–V property, which is the relationship between the coefficient of friction μ, and differential rotation V, which is the difference in the rotational speeds of any two elements among the elements constituting a planetary transmission mechanism 9.
F16D 48/06 - Commande par des moyens électriques ou électroniques, p.ex. de la pression du fluide
F16H 59/14 - Entrées de commande vers des transmissions transmettant un mouvement rotatif pour changements de vitesse ou pour mécanismes d'inversion les entrées étant fonction du couple ou du couple demandé
F16C 19/10 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges axiales principalement
F16C 33/58 - Chemins de roulement; Bagues de roulement
42.
ELECTRIC FRICTION ENGAGEMENT DEVICE, AND TOUCH POINT DETECTION METHOD AND ANOMALY DETECTION METHOD THEREFOR
The present invention addresses the problem of implementing a structure capable of detecting a piston touch point and a clutch touch point. To solve the problem, when an electric friction engagement device (7) is switched from a connection mode to a disconnection mode, a phase (θ) related to the direction of rotation of a drive cam (34) at the time when the output torque (T) or current value (A) of a shift motor (66) starts increasing at an increase rate that is at least a first threshold is detected as a piston touch point (θp), and a phase (θ) related to the direction of rotation of the drive cam (34) at the time when the increase rate becomes equal to or lower than a second threshold is detected as a clutch touch point (θf).
A thrust roller bearing includes a plurality of rollers, a cage, and a race. Each of a first member and a second member of the cage includes an annular web, an inner flange, and an outer flange. The inner flange of the first member and the inner flange of the second member are fixed to each other by crimping. A tab protruding in an axial direction is formed on the outer flange of the second member, and is inserted into one of a plurality of pockets of the first member. The race includes an annular portion forming a raceway surface, an outer race flange forming a first guide surface that guides the cage, and a guide portion forming a second guide surface that guides a shaft member.
F16C 33/54 - Cages à rouleaux ou à aiguilles faites de fils, de bandes ou de tôle métallique
F16C 19/30 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à rouleaux essentiellement du même gabarit, disposés dans une ou plusieurs rangées circulaires, p.ex. roulements à aiguilles pour charges axiales principalement
[Problem] To provide a steering shaft which has a structure capable of suppressing a change in sliding resistance even when the overall length thereof changes. [Solution] One engaging part among an inner-diameter-side engaging part 19 and an outer-diameter-side engaging part 31 is equipped with one or more non-engaging sections 23 which do not engage the other engaging part and are located in an intermediate section in the axial direction. Therein: an engageable part is positioned on both sides in the axial direction of a non-engaging section 23 of the one engaging part; each of said engageable parts has an effective length X; the non-engaging sections 23 have an axial-direction dimension which is the same length as is the effective length X; and the other engaging part has an effective length Y which has a length 2X which is twice the effective length X.
B62D 1/185 - Colonnes de direction susceptibles de déformation ou réglables, p.ex. inclinables réglables par déplacement axial, p.ex. télescopiques
B62D 1/20 - Liaison entre la colonne de direction et la timonerie
B62D 5/04 - Direction assistée ou à relais de puissance électrique, p.ex. au moyen d'un servomoteur relié au boîtier de direction ou faisant partie de celui-ci
45.
METHOD FOR CONTROLLING SUPPLY OF LUBRICANT, DEVICE FOR CONTROLLING SUPPLY OF LUBRICANT, AND PROGRAM
Provided is a method for controlling supply of a lubricant to a device configured such that a plurality of portions are lubricated with the lubricant, wherein: the impedance of an electronic circuit including the plurality of portions is measured by applying alternating voltage to the electronic circuit; the oil film thickness and the oil film fracture rate between the plurality of portions are derived on the basis of the measured impedance; and the amount of supply of the lubricant to the device and/or the timing of the supply is controlled on the basis of the derived oil film thickness and the derived oil film fracture rate so that a lubrication state between the plurality of portions can be a prescribed lubrication state.
F16N 29/02 - Dispositifs particuliers dans les installations ou systèmes de lubrification indiquant ou détectant des conditions indésirables; Utilisation des dispositifs sensibles à ces conditions dans les installations ou systèmes de lubrification agissant sur l'alimentation en lubrifiant
F16C 33/66 - Pièces ou détails particuliers pour la lubrification
F16N 31/00 - Dispositifs pour recueillir ou retenir le lubrifiant dans les machines ou appareils ou pour l'en évacuer
Provided is a linear-motion element of a linear-motion planar guide device including: a raceway surface (3) facing a rail-side raceway surface and constituting a load rolling path (5) of rollers; a linear-motion element body (1) formed with a return path (7) for circulating rollers (13) that have rolled on the load rolling path; and a pair of end caps (9) formed with a direction change path (11) for communicating the load rolling path and the return path, and disposed at both front and rear ends of the linear-motion element body. Each roller (13) has, on at least one of both end surfaces, a chamfer (17) for retaining the roller, and satisfies 1 ≤ L/Da ≤ 1.5 where Da is the diameter of the roller, and L is the length of the roller.
The quenching method is for workpieces that include lace and are provided with a workpiece through-hole. The quenching method has a step that prepares a press quenching device capable of switching between a restraint state in which the workpiece is restrained and a non-restraint state in which the workpiece is not restrained, a step that places a plurality of heated workpieces in the press quenching device which is in a non-restraint state, a step that restrains a part of the workpieces to be restrained by the press quenching device by switching the press quenching device from a non-restraint state to a restraint state, and a step that cools the restrained workpieces.
C21D 9/00 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet
C21D 9/40 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour roulements de paliers
C21D 1/18 - Durcissement; Trempe avec ou sans revenu ultérieur
C21D 1/673 - Dispositifs pour trempe pour la trempe en coquille
[Problem] To prevent the occurrence of a phenomenon wherein a state in which an input member and an output member can rotate and a state in which the same cannot rotate repeatedly occur in an alternating manner in a short time period. [Solution] A reverse input blocking clutch 4 has a function of transmitting, to an input member 7, a torque that is being reverse-inputted to an output member 8 from an output-side mechanism, due to the provision of instructions to use an actuator to apply, to the input member 7 while the torque is being reverse-inputted to the output member 8 from the output-side mechanism, a torque in the opposite direction from the direction of the torque that is being reverse-inputted to the output member 8 from the output-side mechanism, thereby switching the reverse input blocking clutch 4 to a state of being able to transmit torque between the input member 7 and the output member 8, and then to use the actuator to apply, to the input member 7 and in the aforementioned opposite direction, a torque of a size that is less than the size of the torque that is being reverse-inputted to the output member 8 from the output-side mechanism.
This ball placement method for a ball bearing includes executing, in the stated order: a ball inserting step for loading a plurality of balls into one region along the circumferential direction of an annular space formed between an inner race and an outer race; a flow stopping step for placing a flow stop jig outside in the circumferential direction of the one region of the annular space such that the plurality of loaded balls remain inside the one region; a block dividing step for placing a block dividing jig in the annular space so as to divide the plurality of balls into groups; and a ball dividing step for removing the flow stop jig and the block dividing jig from the annular space from the state in which the flow stop jig and the block diving jig have been placed in the annular space, while sequentially inserting, in the axial direction, the tips of a plurality of work arrows protrusively provided in accordance with the number of balls between the plurality of balls, so as to place the plurality of balls at equal intervals in the circumferential direction.
B23P 21/00 - Machines pour l'assemblage de nombreuses pièces différentes destinées à composer des ensembles, avec ou sans usinage de ces pièces avant ou après leur assemblage, p.ex. à commande programmée
F16C 43/06 - Mise en place des organes roulant dans les cages de roulement ou dans les paliers
51.
SCREW SHAFT AND METHOD FOR PRODUCING SAME, AND ELECTRIC POSITION-ADJUSTING DEVICE FOR STEERING WHEEL
Provided is a screw shaft in which shape accuracy of a male threaded portion is sufficiently secured. A screw shaft includes a large-diameter shaft portion, medium-diameter shaft portions and small-diameter shaft portions. The large-diameter shaft portion has a male threaded portion along its entire axial length on its outer peripheral surface. The medium-diameter shaft portions are arranged axially adjacent to the large-diameter shaft portion and have an outer diameter smaller than an outer diameter of the large-diameter shaft portion. The small-diameter shaft portions are axially arranged adjacent to the medium-diameter shaft portions on sides opposite to the large-diameter shaft portion, have an outer diameter smaller than the outer diameter of each of the medium-diameter shaft portions, and do not have rolling traces having a helical shape on their outer peripheral surfaces.
B62D 1/181 - Colonnes de direction susceptibles de déformation ou réglables, p.ex. inclinables comportant des moyens de réglage assistés, p.ex. avec mémorisation de la position
B21H 3/04 - Fabrication au moyen de rouleaux profilés
A steering column device includes a friction plate having a long hole though which an adjusting rod is inserted and a mounting hole, and sandwiched at least one of a portion between one of inner-side surfaces of a pair of support plate portions and an outer-side surface of a column-side bracket of a steering column, and a portion between one of outer-side surfaces of the pair of support plate portions and one of inner-side surfaces of a pair of pressing portions. The steering column device includes a hook portion having a cantilever beam structure that is inserted through the mounting hole in the width direction, and the hook portion has a restricting projection for restricting movement in the width direction of the friction plate.
B62D 1/189 - Colonnes de direction susceptibles de déformation ou réglables, p.ex. inclinables comportant un réglage axial et de l'inclinaison la totalité de la colonne de direction étant inclinable comme un tout
B62D 1/184 - Dispositifs pour fixer les colonnes à des positions sélectionnées
A drive wheel in which the rotational axial center of a wheel along the vertical direction intersecting the axial center of the axle is arranged shifted in the horizontal direction orthogonal to the axial center of the axle with respect to the axial center of the pivot shaft. When a radius R1 of the wheel, center distance R2 between the rotational axial center and the axial center of the pivot shaft, rotational frequency n1 of the wheel, rotational frequency n2 of the pivot shaft, rotational speed V1 of the wheel, and steering rotational speed V2 of the wheel rolling on a floor surface while turning the pivot shaft satisfy V1=V2, relations of V1=2π×R1×n1, V2=2π×R2×n2, and n1=n2 (R2/R1) are satisfied.
B62B 5/00 - Accessoires ou détails spécialement adaptés aux voitures à bras
F16H 1/22 - Transmissions à engrenages pour transmettre un mouvement rotatif sans engrenages à mouvement orbital comportant plus de deux organes engrenés avec dispositions pour répartir le couple entre plusieurs arbres intermédiaires
F16H 1/24 - Transmissions à engrenages pour transmettre un mouvement rotatif sans engrenages à mouvement orbital comportant des engrenages dont les éléments engrenés sont essentiellement autres que des dentures à développante ou cycloïdales
B62B 3/00 - Voitures à bras ayant plus d'un essieu portant les roues servant au déplacement; Dispositifs de direction à cet effet; Appareillage à cet effet
54.
OIL FILM STATE DETECTION METHOD, STATE DETECTION DEVICE, AND PROGRAM
There is provided a state detection method for detecting an oil film state according to a lubricant in a device configured to lubricate a plurality of parts with the lubricant, the method including: a measurement step of measuring impedance and a phase angle of an electric circuit by applying an AC voltage to the electric circuit configured with the plurality of parts while changing a frequency; and a derivation step of deriving an oil film thickness according to the lubricant and a parameter indicating an electrical characteristic according to the oil film thickness, based on a relative dielectric constant at a high frequency limit of the lubricant defined based on a composition of the lubricant, and the impedance and the phase angle measured in the measurement step.
G01N 27/22 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant l'impédance en recherchant la capacité
55.
Producing method of bearing unit, producing method of machine, and producing method of vehicle
A producing method of a bearing unit includes: a step of measuring torque of a first bearing unit under each of a plurality of load conditions during production of the first bearing unit; a step of determining a target value of each of a plurality of production parameters based on of a load-torque relationship obtained from measurement results of the torque; and a step of producing a second bearing unit on the basis of the target value of each of the plurality of production parameters.
09 - Appareils et instruments scientifiques et électriques
10 - Appareils et instruments médicaux
12 - Véhicules; appareils de locomotion par terre, par air ou par eau; parties de véhicules
Produits et services
wheels being parts of machines; electric drive motors for machines; mechanical control installations for machines, motors and engines; Wheeled drive units for item transport robots, industrial robots, cleaning robots and household cleaning and laundry robots with artificial intelligence; Caster wheels for drive units in item transport robots, industrial robots, cleaning robots and household cleaning and laundry robots with artificial intelligence; electric-powered casters for item transport robots; omnidirectional casters for item transport robots; electric-powered casters for industrial robots; omnidirectional casters for industrial robots; electric-powered casters for cleaning robots; omnidirectional casters for cleaning robots; electric-powered casters for household cleaning and laundry robots with artificial intelligence; omnidirectional casters for household cleaning and laundry robots with artificial intelligence; control mechanisms for machines, engines or motors downloadable software for controlling, steering and tuning robots; electric-powered casters for security surveillance robots; omnidirectional casters for security surveillance robots; electric-powered casters for guidance robots for visitors in public or private areas other than for industrial, medical and playing use; electric-powered casters for customer service support robots other than for industrial, medical and playing use surgical, medical robot and their parts and accessories namely electric-powered casters for surgical or medical robots; omnidirectional casters for surgical or medical robots casters for trolleys; casters for vehicles; casters for carts; electric-powered casters for transportation robots; omnidirectional casters for transportation robots; wheeled drive units for vehicles, trolleys and carts; caster wheels for wheeled drive units for vehicles, trolleys and carts
A distance (D1) between a rotation center (O) of an input member (3) and a contact portion (Pin) between an input side engaging portion (9) and an input side engaged portion (17) in a second direction is set to be shorter than a distance (D2) between a rotation center (O) of an output member (4) and a contact portion (Pout) between an output side engaging portion (12) and an output side engaged portion (14) in the second direction in a state in which a pair of pressing surfaces (13) is pressed against a pressed surface (6) in accordance with a rotation of the output member (4) in a predetermined direction and the input side engaging portion (9) engages with the input side engaged portion (17) in accordance with a rotation of the input member (3) in a direction opposite to the predetermined direction. In a locked or semi-locked state, a contact portion (C1) between the output side engaging portion (12) and the output side engaged portion (14) is located on the side closer to the rotation center (O) of the output member (4) in a first direction in relation to a virtual line (L) connecting the rotation center (O) of the output member (4) and a contact portion (C2) between one pressing surface (13) of the pair of pressing surfaces (13) and the pressed surface (6).
F16D 41/08 - Roues libres ou embrayages à roue libre avec organes d'accouplement intermédiaires d'arrêt entre une surface intérieure et une surface extérieure avec moyens de modifier le fonctionnement en roue libre
A torsion-coil spring 6 is provided between an input-side engaging part 27 of an input member 3 and an engagement element 5, generates an elastic force including a component in a first direction which is the perspective direction of the pressing surface 33 of the engagement element 5 with respect to a pressed surface 7 of a pressed member 2, and applies, to the input-side engaging part 27 on the basis of the elastic force, resistance against relative rotation of the input-side engaging part 27 to the engagement element 5.
F16D 41/08 - Roues libres ou embrayages à roue libre avec organes d'accouplement intermédiaires d'arrêt entre une surface intérieure et une surface extérieure avec moyens de modifier le fonctionnement en roue libre
F16D 41/10 - Roues libres ou embrayages à roue libre avec organes d'accouplement intermédiaires d'arrêt entre une surface intérieure et une surface extérieure avec moyens de modifier le fonctionnement en roue libre à inversion automatique
09 - Appareils et instruments scientifiques et électriques
10 - Appareils et instruments médicaux
12 - Véhicules; appareils de locomotion par terre, par air ou par eau; parties de véhicules
Produits et services
Electric-powered casters for robots; omnidirectional casters for robots; Devices for adapting power driven tools to robots; hydraulic control apparatus for robots; mechanical control apparatus for robots; pneumatic control apparatus for robots; wheels being parts of machines; electric drive motors for machines; mechanical control installations for machines, motors and engines; motor drive apparatus for industrial purposes; drive units, other than for land vehicles; bearings [parts of machines]; Wheeled drive units for robots; caster wheels for robot drive units; electric-powered casters for item transport robots; omnidirectional casters for item transport robots; electric-powered casters for industrial robots; omnidirectional casters for industrial robots; electric-powered casters for cleaning robots; omnidirectional casters for cleaning robots; electric-powered casters for household cleaning and laundry robots with artificial intelligence; omnidirectional casters for household cleaning and laundry robots with artificial intelligence; control mechanisms for machines, engines or motors; wheeled drive units other than for land vehicles; caster wheels for drive units other than for land vehicles; parts for all the aforesaid. Electric control apparatus for robots; software (recorded programs) for controlling, steering and tuning robots and mobile platforms; Electric-powered casters for security surveillance robots; omnidirectional casters for security surveillance robots; Caster wheels for robots and parts therefor. Surgical, medical robot and their parts and accessories namely Electric-powered casters for surgical or medical robots; omnidirectional casters for surgical or medical robots. Casters [wheels] for trolleys; casters [wheels] for vehicles; casters for carts [vehicles]; parts for caster wheels for wheeled drive units for vehicles, trolleys and carts; Electric-powered casters for transportation robots; omnidirectional casters for transportation robots; Wheeled drive units for vehicles, trolleys and carts; caster wheels for wheeled drive units for vehicles, trolleys and carts.
60.
STATE DIAGNOSIS METHOD, STATE DIAGNOSIS DEVICE, AND PROGRAM
A condition diagnosis method includes: a measurement step of measuring relative dielectric constant of a lubricant by applying a voltage to the lubricant while changing a frequency from an AC power source; a derivation step of deriving parameters indicating electrical properties of the lubricant by applying the relative dielectric constant measured in the measurement step to a theoretical formula; and a diagnosis step of diagnosing a condition of the lubricant using the parameters.
G01N 27/22 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant l'impédance en recherchant la capacité
The objective of the present invention is to provide a vehicle steering system control device with which a steering feel that reflects road surface conditions and the state of a vehicle can be obtained. This control device comprises: a current compensation value generating unit (220) for generating a reaction force motor current compensation value (Iref_d) that increases and decreases in accordance with a road surface reaction force torque estimated value, estimated on the basis of at least a first steering motor current command value (Iref_a); and a gain ratio generating unit (230) for generating a first gain (Ga) that increases and decreases in accordance with a vehicle speed Vs of the vehicle, and a second gain (Gb) with which the sum with the first gain (Ga) is 1. A steering torque target value generating unit (200) generates a steering torque target value (Th_ref) by multiplying a torque value, which increases and decreases in accordance with at least a steering angle, by the first gain (Ga), and a steering torque control unit (400) adds a value obtained by multiplying a first current compensation value (Iref_d) by the second gain (Ga) to a first current command value (Iref_a), which is a target value of a current supplied to a reaction force motor (31), and generates a reaction force motor current command value (Ih_ref) for driving the reaction force motor (31).
B62D 6/00 - Dispositions pour la commande automatique de la direction en fonction des conditions de conduite, qui sont détectées et pour lesquelles une réaction est appliquée, p.ex. circuits de commande
B62D 5/04 - Direction assistée ou à relais de puissance électrique, p.ex. au moyen d'un servomoteur relié au boîtier de direction ou faisant partie de celui-ci
Provided is a control device for a vehicle steering system, with which desired input/output transfer characteristics can be realized while minimizing steering angle divergence caused by disturbance from the road surface. The control device for a vehicle steering system comprises a steering angle control unit that generates a motor current command value, which is a control target value for a current supplied to a steering motor, on the basis of a steering angle target value, which is a target value for the steering angle of steered wheels. The steering angle control unit comprises a feedforward compensator (710) for improving the followability of the turning angle relative to the turning angle target value, a feedback compensator (720) that controls the motor current command value on the basis of a deviation between an output value of the feedforward compensator (710) and an actual turning angle (θt_act), and a disturbance observer (730) that estimates a disturbance component (d) acting on an inertial system including the steering motor and removes the disturbance component (d) from the motor current command value.
B62D 6/00 - Dispositions pour la commande automatique de la direction en fonction des conditions de conduite, qui sont détectées et pour lesquelles une réaction est appliquée, p.ex. circuits de commande
B62D 5/04 - Direction assistée ou à relais de puissance électrique, p.ex. au moyen d'un servomoteur relié au boîtier de direction ou faisant partie de celui-ci
The present invention provides a control device for a vehicle steering system, the control device being capable of appropriately determining a detection value anomaly in a temperature sensor. The control device comprises a processing unit that monitors abnormal heat generation in a first component subject to temperature monitoring on the basis of a detection value (Vt1) from a first temperature sensor and monitors abnormal heat generation in a second component subject to temperature monitoring on the basis of a detection value (Vt2) from a second temperature sensor. When the ignition of a vehicle is turned off and then turned on after a predetermined time threshold (ΔTs) is exceeded, and the difference value (|Vt1 - Vt2|) between the detection value (Vt1) according to the first temperature sensor and the detection value (Vt2) according to the second temperature sensor exceeds a predetermined detection value difference threshold (ΔVtth), the processing unit determines that a detection value anomaly has occurred in one or both of the detection value (Vt1) from the first temperature sensor and the detection value (Vt2) from the second temperature sensor.
B62D 6/00 - Dispositions pour la commande automatique de la direction en fonction des conditions de conduite, qui sont détectées et pour lesquelles une réaction est appliquée, p.ex. circuits de commande
B62D 5/04 - Direction assistée ou à relais de puissance électrique, p.ex. au moyen d'un servomoteur relié au boîtier de direction ou faisant partie de celui-ci
64.
Ball screw device and method for manufacturing same
A ball screw device comprising: a screw shaft, a nut, balls arranged between the shaft-side ball thread groove and the nut-side ball thread groove, a stopper including: a boss portion fitted to the fitting shaft portion of the screw shaft, and a second engaging portion protruding in the radial direction from the boss portion and engageable with a first engaging portion of the nut in the circumferential direction, and a holding member arranged adjacent to one side in the axial direction of the stopper, such that an axial load can be transmitted between the screw portion of the screw shaft and the holding member through the stopper without applying a moment to the stopper.
F16H 25/24 - Eléments essentiels pour ces mécanismes, p.ex. vis, écrous
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaison; Eléments essentiels pour l'utilisation de ces organes
This steering device comprises: a first steering column which is disposed at the outer side of a steering shaft; and a second steering column which is disposed at the outer side of the first steering column and is capable of moving relative to the first steering column in a first direction. The first steering column has a pin extending in a second direction that intersects the first direction. The second steering column has a projection that is disposed on one side in the first direction with respect to the pin and that is capable of blocking the movement of the first steering column by coming into abutment against the pin.
[Problem] To provide a manufacturing method whereby it is possible to obtain, at a low cost, a raceway ring for a roller bearing that ensures hardness of not only a rolling element guide surface, but also the surface of a prescribed location offset from the rolling element guide surface. [Solution] This manufacturing method comprises: a step for obtaining a base material (12); a step for forming, by means of laser cladding on any one surface among an outer peripheral surface, inner peripheral surface, and side surfaces on both sides in the axial direction of the base material (12), build-up layers (13a), (13b) made of a metal material having a hardness which is greater than a section of the base material (12) offset from a cured layer (14); a step for forming surface layer portions of rolling element guide surfaces (8), (9) by performing finish processing on the surfaces of the build-up layers (13a), (13b); and a step for forming the cured layer (14) by means of laser quenching along the entire circumference on the surface layer portions including at least a part of the section of the surface of the base material (12) covered by the build-up layers (13a), (13b).
A ball bearing includes an inner ring having a raceway surface, an outer ring having a raceway surface, a plurality of rolling elements rollably disposed between the raceway surface of the inner ring and the raceway surfaces of the outer ring, and a resin cage configured to retain the plurality of rolling elements between the inner ring and the outer ring. The cage is a crown type cage having an annular base portion and a plurality of pockets formed in an axial end face of the annular base portion, in which the pockets retain the rolling elements. An axial distance between an axial position of a center of gravity of the cage and a curvature center of a spherical or cylindrical inner surface of each of the pockets is 0.6 or more times a radius of curvature of the inner surface. A hybrid vehicle transmission has this ball bearing.
This motor control device comprises: an abnormality determination unit (51) which determines whether a temperature detection circuit is abnormal; a first temperature estimation unit (52) which, when the temperature detection circuit has been determined to be abnormal, outputs, as a first temperature estimation value, a value gradually increasing at a constant speed from a detection temperature detected by the temperature detection circuit to a predetermined set value; and a second temperature estimation unit (54) which calculates, as a second temperature estimation value, a value obtained by adding, to the first temperature estimation value, a raised temperature value estimated on the basis of motor current.
H02P 29/024 - Détection d’un défaut, p.ex. court circuit, rotor bloqué, circuit ouvert ou perte de charge
B62D 5/04 - Direction assistée ou à relais de puissance électrique, p.ex. au moyen d'un servomoteur relié au boîtier de direction ou faisant partie de celui-ci
B62D 6/00 - Dispositions pour la commande automatique de la direction en fonction des conditions de conduite, qui sont détectées et pour lesquelles une réaction est appliquée, p.ex. circuits de commande
H02P 21/22 - Commande du courant, p.ex. en utilisant une boucle de commande
H02P 25/22 - Enroulements multiples; Enroulements pour plus de trois phases
H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p.ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs
H02P 29/62 - Commande ou détermination de la température du moteur ou de l'entraînement pour augmenter la température du moteur
H02P 29/68 - Commande ou détermination de la température du moteur ou de l'entraînement basée sur la température d’un composant d’entraînement ou d’un composant semi-conducteur
The ball screw device has a nut having a guide concave groove on the outer-circumferential surface capable of engaging with a rotation restraining member in the circumferential direction, a housing provided with an insertion hole having a retaining concave groove on the inner-circumferential surface capable of engaging with the rotation restraining member in the circumferential direction, the rotation restraining member configured by a shaft-shaped member extending in the axial direction, the rotation restraining member having an outside portion in the radial direction arranged inside the retaining concave groove and an inside portion in the radial direction arranged inside the guide concave groove, so as to be able to slide in the axial direction.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaison; Eléments essentiels pour l'utilisation de ces organes
70.
MOTOR CONTROL DEVICE AND ELECTRIC POWER STEERING DEVICE
This motor control device comprises temperature detection elements (45a, 46a) that are mounted on a circuit substrate (70) on which a first power conversion circuit (42a) and a second power conversion circuit (42B) are mounted, and that are disposed at a location between the first power conversion circuit (42a) and the second power conversion circuit (42B).
H02P 29/024 - Détection d’un défaut, p.ex. court circuit, rotor bloqué, circuit ouvert ou perte de charge
B62D 5/04 - Direction assistée ou à relais de puissance électrique, p.ex. au moyen d'un servomoteur relié au boîtier de direction ou faisant partie de celui-ci
B62D 6/00 - Dispositions pour la commande automatique de la direction en fonction des conditions de conduite, qui sont détectées et pour lesquelles une réaction est appliquée, p.ex. circuits de commande
H02P 21/22 - Commande du courant, p.ex. en utilisant une boucle de commande
H02P 25/22 - Enroulements multiples; Enroulements pour plus de trois phases
H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p.ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs
H02P 29/62 - Commande ou détermination de la température du moteur ou de l'entraînement pour augmenter la température du moteur
H02P 29/68 - Commande ou détermination de la température du moteur ou de l'entraînement basée sur la température d’un composant d’entraînement ou d’un composant semi-conducteur
71.
BALL SCREW DEVICE AND METHOD FOR MANUFACTURING THE SAME
[Problem] To provide a ball screw device with which it is possible to effectively prevent a fitting shaft part of a screw shaft from slipping out of a fitting member in the axial direction even when a moment around an axis perpendicular to a center axis acts on the screw shaft or the fitting member. [Solution] The fitting shaft part has an inner-diameter-side engaging part on which a plurality of external teeth are circumferentially disposed on the outer peripheral surface, the fitting member has an outer-diameter-side engaging part on which a plurality of internal teeth are circumferentially disposed on the inner peripheral surface and which engages with the inner-diameter-side engaging part, the engaging part between the inner-diameter-side engaging part and the outer-diameter-side engaging part has, in a part thereof along an axial direction, a portion having an interference in a radial direction, and the fitting shaft part has, at the end on one side in the axial direction, a crimped part that engages with the fitting member in the axial direction.
F16H 25/24 - Eléments essentiels pour ces mécanismes, p.ex. vis, écrous
F16D 1/06 - Accouplements pour établir une liaison rigide entre deux arbres coaxiaux ou d'autres éléments mobiles d'une machine pour montage d'un organe sur un arbre ou à l'extrémité d'un arbre
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaison; Eléments essentiels pour l'utilisation de ces organes
72.
ASSEMBLY OF GEAR AND ROTATING SHAFT, AND ASSEMBLY METHOD THEREFOR
An assembly of a gear and rotating shaft, comprising: a gear having teeth on an outer peripheral surface thereof, and a center hole penetrating in an axial direction through a center portion thereof; and a rotating shaft including a serrated shaft portion having a male serration portion on an outer peripheral surface thereof and press-fitted into the center hole, and a guide shaft portion provided adjacent to one side in the axial direction of the serrated shaft portion and having an outer diameter capable of being internally fitted in the center hole with a clearance fit.
F16D 1/072 - Accouplements pour établir une liaison rigide entre deux arbres coaxiaux ou d'autres éléments mobiles d'une machine pour montage d'un organe sur un arbre ou à l'extrémité d'un arbre non démontables faisant intervenir une déformation plastique
H02K 7/116 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des engrenages
73.
TEMPERATURE DERIVATION METHOD FOR OIL FILM, TEMPERATURE DERIVATION DEVICE, AND PROGRAM
Provided is a temperature derivation method for deriving an oil film temperature of a lubricant in a device, the temperature derivation method including a measurement step of measuring a dielectric constant of the lubricant by applying an alternating voltage while changing a frequency to an electric circuit configured by the device, a derivation step of 5 applying the dielectric constant measured in the measurement step to a theoretical formula to derive a relaxation time of the lubricant, and a calculation step of calculating the oil film temperature by using the relaxation time.
G01K 11/00 - Mesure de la température basée sur les variations physiques ou chimiques, n'entrant pas dans les groupes , , ou
G01K 13/02 - Thermomètres spécialement adaptés à des fins spécifiques pour mesurer la température de fluides en mouvement ou de matériaux granulaires capables de s'écouler
74.
MACHINE STRUCTURAL MEMBER AND METHOD FOR MANUFACTURING SAME
Provided is a machine structural member that can suppress deformation and has high accuracy and excellent quality. This machine structural member (triangular screw shaft) (31), in which grooves (32) and teeth (33) are formed by plastic processing and which has a cured layer (31a) on the surfaces of the teeth (33), has a sorbite structure, and the Rockwell hardness in a region (P) excluding the cured layer (31a) is 13-28 (HRC). Furthermore, the variation in Rockwell hardness in the region (P) excluding the cured layer (31a) is within 6 (HRC).
C21D 9/32 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour roues d'engrenage, roues hélicoïdales, ou équivalent
B21H 3/04 - Fabrication au moyen de rouleaux profilés
B23P 15/14 - Fabrication d'objets déterminés par des opérations non couvertes par une seule autre sous-classe ou un groupe de la présente sous-classe de pièces d'engrenage, p.ex. de pignons
B23P 23/04 - Machines ou agencements de machines réalisant des combinaisons déterminées de différentes opérations d'usinage, non couverts par une seule autre sous-classe pour effectuer l'usinage ainsi que les autres opérations de travail du métal
C21D 9/00 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet
A two-speed transmission includes: an input member; an output member; a rotating member; a first engaging device switching engagement between first and second friction plates to switch the input member and the rotating member to an integrally rotating state or a relatively rotating state; a second engaging device switching the rotating member to a rotatable or non-rotatable state; an elastic biasing means applying a force pressing the first and second friction plates; a pressing device releasing the pressing force; a first bearing between the elastic biasing means and the pressing device; a second bearing between the rotating member and the pressing device or the fixed portion; and a planetary speed reduction mechanism having a sun element connected to the input member or the rotating member, a carrier connected to one of the input member or the rotating member and the output member, and a ring element connected to the other.
F16H 3/54 - Transmissions ayant uniquement deux engrenages centraux reliés par des engrenages à mouvement orbital avec engrenages orbitaux uniques ou paires d'engrenages orbitaux rigidement liés comprenant des engrenages orbitaux droits un des engrenages centraux étant denté intérieurement et l'autre denté extérieurement
76.
DETECTION METHOD OF STATE OF BEARING DEVICE, DETECTION DEVICE, AND PROGRAM
A detection method for detecting a state of a bearing device including an outer member, an inner member, and a plurality of rolling elements, the detection method including: applying an alternating current voltage to an electric circuit including the outer member, the rolling element, and the inner member while a predetermined load is applied to the bearing device; measuring an impedance and a phase angle of the electric circuit applied with the alternating current voltage; and deriving an oil film thickness and a metal contact ratio between the inner member and the plurality of rolling elements or between the inner member and at least one of the plurality of rolling elements based on the impedance and the phase angle.
F16C 33/66 - Pièces ou détails particuliers pour la lubrification
G01B 7/06 - Dispositions pour la mesure caractérisées par l'utilisation de techniques électriques ou magnétiques pour mesurer la longueur, la largeur ou l'épaisseur pour mesurer l'épaisseur
F16D 41/08 - Roues libres ou embrayages à roue libre avec organes d'accouplement intermédiaires d'arrêt entre une surface intérieure et une surface extérieure avec moyens de modifier le fonctionnement en roue libre
F16D 63/00 - Freins non prévus ailleurs; Freins combinant plusieurs des types mentionnés dans les groupes
78.
MECHANICAL STRUCTURAL MEMBER AND PRODUCTION METHOD FOR SAME
Provided is a high-precision mechanical structural member that has excellent quality and resists deformation. A mechanical structural member according to the present invention has grooves (32) and teeth (33) that have been formed by plastic processing and includes a hardened layer (31a) that is formed at the surface of the mechanical structural member by high-frequency quenching and has a uniform martensitic single-phase structure, a core region (31b) that has a sorbitic structure, and a boundary layer (31c) that is formed between the core region (31b) and the hardened layer (31a) and has a mixture of a sorbitic structure and a martensitic structure. The Rockwell hardness of the core region is 13–28 (HRC), the variation in the Rockwell hardness being within 6 (HRC).
C21D 9/32 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour roues d'engrenage, roues hélicoïdales, ou équivalent
B21H 3/04 - Fabrication au moyen de rouleaux profilés
B23P 15/14 - Fabrication d'objets déterminés par des opérations non couvertes par une seule autre sous-classe ou un groupe de la présente sous-classe de pièces d'engrenage, p.ex. de pignons
B23P 23/04 - Machines ou agencements de machines réalisant des combinaisons déterminées de différentes opérations d'usinage, non couverts par une seule autre sous-classe pour effectuer l'usinage ainsi que les autres opérations de travail du métal
C21D 1/10 - Durcissement de surface par radiation particulaire par induction électrique
C21D 9/00 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet
Provided is a rolling bearing using a retainer, particularly a highly reliable retainer in which dimensional stability required for a retainer of an outer ring guide type, ductility required for a crown-type retainer, improvement in adhesion of grease with a poly-α-olefin oil or the like as a base oil, and deformation prevention at a high speed can be achieved. The rolling bearing includes at least an inner ring 1, an outer ring 3, a synthetic resin retainer 9, and a rolling element 7, in which the synthetic resin retainer 9 is formed of a polyamide resin composition including polyamide 410 and a reinforcing fiber material with a content of 0% by weight to 40% by weight.
C10M 107/02 - Polymères d'hydrocarbures; Polymères d'hydrocarbures modifiés par oxydation
C08G 69/26 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques dérivés de polyamines et d'acides polycarboxyliques
C09K 3/10 - Substances non couvertes ailleurs pour sceller ou étouper des joints ou des couvercles
A groove curvature radius ratio Ri of the inner ring raceway groove to a ball diameter is 54% to 58%, a groove curvature radius ratio Ro of an outer ring raceway groove of an outer ring to the ball diameter is 51% to 58%, and Ri−Ro≥0 points. At least an inner ring raceway groove of an inner ring has a maximum surface pressure of 4.7 GPa to 6.0 GPa when a sum of permanent deformation amounts of the ball and the inner ring raceway groove at a center of a contact portion between a ball of an angular ball bearing and the inner ring raceway groove is 1/10,000 of the ball diameter. Accordingly, it is possible to provide the angular ball bearing that can reduce the heat generation amount, and that can reduce the damage caused by the external impact load in the stationary state.
F16C 33/58 - Chemins de roulement; Bagues de roulement
F16C 19/16 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges à la fois radiales et axiales avec une seule rangée de billes
A linear motion actuator has a ball screw device having a screw shaft, a nut, and a plurality of balls, a piston mounted on one end of the screw shaft, and a stroke limiting mechanism setting an operation starting point in time of the screw shaft toward a first direction pointed by the one end. The nut has one end face directed to the first direction and a protruding part protruding from the one end face.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaison; Eléments essentiels pour l'utilisation de ces organes
There is provided a toroidal continuously variable transmission capable of ensuring processability and conveyability of a power roller inner ring while reducing oil leakage from an inner end surface of the power roller inner ring and a decrease in rigidity of the power roller inner ring.
There is provided a toroidal continuously variable transmission capable of ensuring processability and conveyability of a power roller inner ring while reducing oil leakage from an inner end surface of the power roller inner ring and a decrease in rigidity of the power roller inner ring.
A power roller 40 of the toroidal continuously variable transmission includes a power roller inner ring 50 sandwiched between both disks 1 and 2, a power roller outer ring 60 that is provided in a trunnion 35 and rotatably supports the power roller inner ring 50, and an inner ring hole 52 provided in the power roller inner ring 50 so as to extend in an axial direction of the power roller inner ring 50, in which an end surface hole 58 communicating with an inner ring hole 52 is provided in an inner end surface 54 of the power roller inner ring 50, and the end surface hole 58 is closed by a closing member 80 separate from the power roller inner ring 50.
F16H 15/38 - Transmissions donnant une gamme continue de rapports de vitesses dans lesquelles un organe A monté sur un arbre et de diamètre utile uniforme peut travailler avec différentes parties d'un organe B et où l'organe B a une surface de friction incurvée réalisée comme la surface de révolution d'un corps engendrée par une courbe qui n'est ni un arc de cercle centré sur son axe de révolution ni une ligne droite avec surface de friction concave, p.ex. une surface creuse toroïdale avec deux organes B ayant des surfaces creuses toroïdales opposées l'une à l'autre, l'organe ou les organes A étant montés de façon réglable entre ces surfaces
83.
STEERING SHAFT AND STEERING-SHAFT MANUFACTURING METHOD
A steering shaft includes an inner shaft including first tooth parts, an outer shaft including second tooth parts, and a resin layer. The resin layer includes a plurality of thick film parts and at least four thin film parts. Each thick film part is disposed with a gap from one of the second tooth parts, and each thin film part contacts both one of the first tooth parts and one of the second tooth parts. At a section orthogonal to a central axis of the inner shaft, the thickness of each thin film part is smaller than the thickness of each thick film part.
F16D 1/10 - Accouplements à action rapide dans lesquels les pièces sont simplement présentées dans l'axe
F16D 3/06 - Accouplements extensibles, c. à d. avec moyens permettant le mouvement entre parties accouplées durant leur entraînement adaptés à des fonctions particulières spécialement adaptés pour permettre un déplacement axial
B05D 3/02 - Traitement préalable des surfaces sur lesquelles des liquides ou d'autres matériaux fluides doivent être appliqués; Traitement ultérieur des revêtements appliqués, p.ex. traitement intermédiaire d'un revêtement déjà appliqué, pour préparer les applications ultérieures de liquides ou d'autres matériaux fluides par cuisson
84.
CROWN-TYPE RETAINER FOR BALL BEARING, AND BALL BEARING
A crown-type retainer for a ball bearing, according to the present invention, comprises: a circular ring-shaped main part; a plurality of pillar parts that protrude in the axial direction from the main part and are arranged at prescribed intervals in the peripheral direction; and a pocket that is formed between adjacent pillar parts and capable of holding a ball, the pocket being spherically shaped and having a spherical concave surface. The pillar parts each include a pair of claw sections having a tip end part disposed to be spaced apart from each other, and a connection section connecting the pair of claw sections. The leading end portions of two adjacent claw sections constituting the pocket have provided therebetween an entrance section that has a width shorter than the diameter of the ball and allows for insertion of the ball. The distance between the inner peripheral surface of the pocket and the center of the crown-shaped retainer for a ball bearing is less than the radius of the inner peripheral surfaces of the pillar parts.
F16C 33/41 - Cages à billes comportant une bague portant des doigts de séparation des éléments de roulement
F16C 19/06 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges radiales principalement avec une seule rangée de billes
In the present invention: a flange part integrated with an inner ring is formed on one axial end of the inner ring; a flange member separate from the inner ring is fastened to the other axial end of the inner ring by means of an axially extending fastening member; and the flange member has a base part which is axially in contact with the inner ring and where a head part of the fastening member is seated and a swaging part which pushes the head part of the fastening member from the other axial end side.
F16C 33/60 - Chemins de roulement; Bagues de roulement en plusieurs pièces
F16C 19/36 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à rouleaux essentiellement du même gabarit, disposés dans une ou plusieurs rangées circulaires, p.ex. roulements à aiguilles pour charges à la fois axiales et radiales avec une seule rangée de rouleaux
86.
RETAINER FOR ANGULAR CONTACT BALL BEARING, ANGULAR CONTACT BALL BEARING, AND HUB UNIT BEARING
A notch communicating a pair of pockets adjacent to each other in the circumferential direction of pockets of a retainer is provided in a range from an end section on the axially one side to the axially intermediate section of each of pillar portions of the retainer for an angular contact ball bearing, the notch having a substantially rectangular opening shape as seen from the circumferential direction, and an inner surface of the notch having an outer diameter side flat surface portion arranged on the radially outer side from the center of a pocket and extending substantially linearly in the axial direction, an inner diameter side flat surface portion arranged on the radially inner side from the center and extending substantially linearly in the axial direction, and a back side flat surface portion arranged on the axially other side from the center and extending linearly in the radial direction.
F16C 19/18 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges à la fois radiales et axiales avec plusieurs rangées de billes
Provided is a control device for a vehicle steering system that provides a steering feel reflecting road surface conditions and vehicle status. A steering torque target value generation unit (200) comprises a steering reaction force torque value generator (210) that generates a first torque value (Tref_a) that increases or decreases according to at least an actual steering angle (θh_act), a road surface reaction force sensitive torque compensation value generation unit (220) that generates a second torque value (Tref_d) that increases or decreases according to a road surface reaction force torque estimated value that is estimated on the basis of at least a first turning motor current command value (Iref_a), and a gain ratio generation unit (230) that generates a first gain (Ga) that increases or decreases according to the speed (Vs) of the vehicle, and a second gain (Gb) that sums to 1 with the first gain (Ga). A value obtained by multiplying the first torque value (Tref_a) by the first gain (Ga) and a value obtained by multiplying the second torque value (Tref_d) by the second gain (Gb) are added to obtain a steering torque target value (Th_ref ).
B62D 6/00 - Dispositions pour la commande automatique de la direction en fonction des conditions de conduite, qui sont détectées et pour lesquelles une réaction est appliquée, p.ex. circuits de commande
B62D 5/04 - Direction assistée ou à relais de puissance électrique, p.ex. au moyen d'un servomoteur relié au boîtier de direction ou faisant partie de celui-ci
This ball screw device comprises a screw shaft, a nut, a plurality of balls, a circulation component, a base component, and a fixing component. The nut is provided with a through hole penetrating therethrough in an assembling direction. The circulation component has a cylindrical part, a leg part, and two bent parts. The base component has a body part extending along the cylindrical part and the bent parts. The body part has a groove-like seat surface. The seat surface has a cross-sectional shape forming an arc around the center line of the cylindrical part and the bent parts. The portion of the seat surface abutting on the cylindrical part forms an arc-like support surface open in the direction opposite to the assembling direction, as viewed from a rotation axis direction parallel to the center line of the cylindrical part. The portion of the seat surface abutting on the bent parts forms an arc-like regulation surface open toward the through hole, as viewed from the assembling direction. The regulation surface has a first regulation part that abuts on the bent parts from a first rotation direction, and a second regulation part that abuts on the bent parts from a second rotation direction.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaison; Eléments essentiels pour l'utilisation de ces organes
A linear actuator according to the present disclosure comprises: a ball screw device; a piston; and a rotation stopper. A screw shaft has a screw shaft body, a male spline part, and a level difference surface. A nut has a first end surface, a first opening, and a first stopper. The piston has a piston body, a cylindrical part that protrudes in a second direction from the center of the opposite surface and fits to the male spline part, and a second stopper that protrudes in the second direction from the opposite surface. The first and second stoppers abut against each other when the screw shaft is at an initial position, and constitute the rotation stopper. The level difference surface is disposed further in the second direction relative to the first opening and is positioned inside the nut when the screw shaft is at the initial position. The cylindrical part protrudes further in the second direction relative to the second stopper, and abuts against the level difference surface. The outer circumferential surface of the cylindrical part is larger in diameter than a groove bottom of an outer circumferential orbital plane.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaison; Eléments essentiels pour l'utilisation de ces organes
F16H 25/24 - Eléments essentiels pour ces mécanismes, p.ex. vis, écrous
90.
CENTERING TOOL, CENTERING DEVICE, MACHINE TOOL, METHOD OF CENTERING CIRCULAR WORKPIECE, CIRCULAR WORKPIECE MANUFACTURING METHOD, RING MEMBER MANUFACTURING METHOD, BEARING MANUFACTURING METHOD, MACHINE MANUFACTURING METHOD, VEHICLE MANUFACTURING METHOD, AND PROGRAM
A centering tool includes: a shank portion having a shaft portion for attachment; a rotating member rotatably supported by the shank portion and having a pair of contacts disposed apart from each other in a direction orthogonal to an axis of the shank portion; and a displacement sensor provided integrally with the shank portion and detecting displacement in the direction orthogonal to the axis of the shank portion at an intermediate position between the pair of contacts, in which a circular workpiece is centered by being pushed toward a rotation center of a rotary table while each of the pair of contacts is caused to abut against a peripheral surface of the circular workpiece disposed on the rotary table.
B23Q 3/18 - Dispositifs permettant de maintenir, supporter ou positionner les pièces ou les outils, ces dispositifs pouvant normalement être démontés de la machine pour positionner uniquement
91.
CROWN-TYPE RETAINER FOR BALL BEARING, AND BALL BEARING
This crown-shaped retainer for a ball bearing comprises an annular main part, a plurality of pillars protruding axially from the main part at predetermined intervals in the circumferential direction, and spherical pockets having spherical recessed surfaces that are formed between adjacent pillars and that can hold balls. The pillars each have a pair of hooks of which the tip ends are disposed an interval apart from each other, and a connecting part that connects the pair of hooks. An entrance having a width shorter than the diameter of the balls and for inserting the balls is provided between the tips of the two adjacent hooks constituting a pocket. The distance from the outer peripheral surface of a pocket to the center of the crown-shaped retainer for a ball bearing is greater than the distance from the outer peripheral surface of a pillar to the center.
F16C 19/06 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges radiales principalement avec une seule rangée de billes
F16C 33/41 - Cages à billes comportant une bague portant des doigts de séparation des éléments de roulement
92.
BEARING DEVICE STATE DETECTION METHOD, DETECTION DEVICE, AND PROGRAM
The present invention provides a detection method for detecting the state of a bearing device including tapered roller bearings, the detection method comprising: applying an AC voltage to an electric circuit comprising an outer member, an inner member, and a plurality of rolling bodies while a certain load is applied to the bearing device; measuring the impedance and the phase angle of the electric circuit while the AC voltage is applied thereto; and using a calculation formula corresponding to the electric circuit to calculate, on the basis of the impedance and the phase angle, an oil film thickness and a metal contact ratio between the inner member and the plurality of rolling bodies or between the inner member and at least one of the plurality of rolling bodies.
This quenching method is used for quenching a to-be-quenched object including a race provided with an object through-hole. The quenching method comprises: a step for preparing a quenching jig that is a rod; a step for suspending a plurality of to-be-quenched objects on the rod by putting the quenching jig through object through-holes; and a step for soaking the quenching jig and the to-be-quenched objects in a cooling oil. In the step for suspending, the to-be-quenched objects are arranged on the rod such that the quenching jig and the object through-holes are in linear contact with each other.
C21D 9/40 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour roulements de paliers
C21D 1/00 - Procédés ou dispositifs généraux pour le traitement thermique, p.ex. recuit, durcissement, trempe ou revenu
C21D 1/18 - Durcissement; Trempe avec ou sans revenu ultérieur
C21D 1/63 - Dispositifs pour trempe pour bains de trempe
94.
RESIN HOLDER FOR BALL BEARING, BALL BEARING, AND METHOD FOR MANUFACTURING RESIN HOLDER FOR BALL BEARING
A resin holder (40) comprises: at least one annular part (41); a plurality of columnar parts (42) each extending in the axial direction from the annular part (41) and provided so as to be evenly spaced apart in the circumferential direction; and pockets (43) formed between adjacent columnar parts (42). The annular part (41) has a guide surface guided by an inner circumferential surface (22) of an outer ring (20) or an outer circumferential surface (32) of an inner ring (30), and a gate G for injection molding the resin holder (40) is provided in an inner circumferential surface of all of the columnar parts (42), and is circumferentially displaced from a circumferential center position of each columnar part (42). Moreover, in the axial direction, the gate G is provided within a range L in which an inner ring raceway groove (31) is formed, or within a range L in which the inner ring raceway groove (31) and a counter bore (33) of the inner ring (30) are formed. Through this configuration, the practical virtual roundness of the guide surface of the resin holder can be increased, a radial vibration width of the resin holder during rotation can be significantly reduced, and a long life and quiet operations can be achieved.
This reverse-input blocking clutch comprises: a housing; an input shaft; an output shaft; a pair of engagement elements; a first bearing mechanism provided between the input shaft and the housing; and a second bearing mechanism provided between the output shaft and the housing. At least one of the input shaft, the output shaft and the housing has a raceway surface which contacts a rolling element of at least the first bearing mechanism or the second bearing mechanism.
F16D 41/08 - Roues libres ou embrayages à roue libre avec organes d'accouplement intermédiaires d'arrêt entre une surface intérieure et une surface extérieure avec moyens de modifier le fonctionnement en roue libre
A steering column device includes a steering column; and a telescopic actuator. The steering column includes a first column member, a second column member assembled to the first column member in a manner of being displaceable relative to the first column member in an axial direction, and a low-friction sliding member disposed between the first column member and the second column member. The telescopic actuator includes a telescopic motor, and displaces the second column member in the axial direction with respect to the first column member by using the telescopic motor as a drive source.
B62D 1/187 - Colonnes de direction susceptibles de déformation ou réglables, p.ex. inclinables comportant un réglage axial et de l'inclinaison
B62D 1/181 - Colonnes de direction susceptibles de déformation ou réglables, p.ex. inclinables comportant des moyens de réglage assistés, p.ex. avec mémorisation de la position
This connection device electrically connects a hollow rotating shaft and a conductor. The connection device comprises a first conductive part attached to an end of the rotating shaft, and a second conductive part that is inserted into a recess of the first conductive part and electrically connects the first conductive part and the conductor. The first conductive part has a first abutting part abutting the second conductive part. The second conductive part has a second abutting part abutting the first abutting part. At least one of the first abutting part and the second abutting part has a protruding shape. The first abutting part and the second abutting part abut each other on a rotation axis line of the rotating shaft.
F16C 19/32 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à rouleaux essentiellement du même gabarit, disposés dans une ou plusieurs rangées circulaires, p.ex. roulements à aiguilles pour charges axiales principalement pour recevoir l'extrémité d'un arbre ou d'un autre organe, p.ex. crapaudines
F16C 17/08 - Paliers à contact lisse pour mouvement de rotation exclusivement pour charges axiales uniquement pour porter la partie extrême d'un arbre ou d'un autre organe, p.ex. crapaudines
H02K 5/16 - Moyens de support des paliers, p.ex. supports isolants ou moyens pour ajuster les paliers dans leurs flasques
H02K 5/167 - Moyens de support des paliers, p.ex. supports isolants ou moyens pour ajuster les paliers dans leurs flasques utilisant des paliers à contact lisse ou des chapeaux de palier sphériques
H02K 5/173 - Moyens de support des paliers, p.ex. supports isolants ou moyens pour ajuster les paliers dans leurs flasques utilisant des roulements à rouleaux, p.ex. des roulements à billes
H02K 9/19 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p.ex. de l'huile
98.
STEERING DEVICE AND METHOD FOR MANUFACTURING STEERING DEVICE
This steering device comprises a first steering column, a second steering column, an actuator device, a first attachment part, and a second attachment part. The first attachment part has an opening and an accommodation part including a second arc section. A protruding part has a first arc section and a straight line section, and the first attachment part has an opening and an accommodating part. The minimum width of the opening in the first attachment part is defined as a first distance, and the minimum distance between two intersections of a straight line passing through the center of the accommodation part and the edge of the accommodation part is defined as a second distance. When viewed from a second direction, the first distance which is the maximum distance in the protruding part in the first direction is greater than the second distance which is the maximum distance in the accommodation part in the first direction.
B62D 1/181 - Colonnes de direction susceptibles de déformation ou réglables, p.ex. inclinables comportant des moyens de réglage assistés, p.ex. avec mémorisation de la position
This ball screw device comprises a nut, a screw shaft, balls, and a coolant flow passage. The nut includes: a nut body that has a recessed groove provided to a first end surface of an axial end part thereof; a seal member that is fitted into the recessed groove; and an annular cap that seals the recessed groove. The coolant flow passage includes a plurality of axial flow passages, and a circumferential flow passage that extends in the circumferential direction. The circumferential flow passage is formed by sealing the recessed groove of the nut body with the cap. The seal member includes an annular frame body, and a reinforcement part that connects the two long sides of the frame body together, as viewed from the axial direction. The seal member extends in an arc shape along the recessed groove.
F16H 25/24 - Eléments essentiels pour ces mécanismes, p.ex. vis, écrous
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaison; Eléments essentiels pour l'utilisation de ces organes
F16J 15/10 - Joints d'étanchéité entre surfaces immobiles entre elles avec garniture solide comprimée entre les surfaces à joindre par garniture non métallique
This angle adjusting table comprises a positioning mechanism (15) for rotating a turntable (13) rotatably supported on a base by a cross-roller bearing (17) to position the same at a target position. The positioning mechanism (15) is provided with: a bracket (31) which is supported on the base (11) and is linearly movable in the tangential direction of the turntable (13); a ball screw device (33) that linearly moves the bracket (31); a connection part (35) that is supported so as to be linearly movable in a direction orthogonal to the linear moving direction of the bracket (31) with respect to the bracket (31) and that connects the bracket (31) and an arm (23) of the turntable (13) and converts linear motion of the bracket (31) into rotational motion of the turntable (13); and a plate spring (91) that biases the bracket (31) and the turntable (13) in opposing directions in an intersection direction with the axis of the turntable (13).
F16H 25/10 - Transmissions comportant essentiellement et uniquement des systèmes came et galet ou des mécanismes à vis et écrous pour convertir un mouvement rotatif en mouvement alternatif et vice versa à course réglable
F16H 25/24 - Eléments essentiels pour ces mécanismes, p.ex. vis, écrous
