Abrégé

A road bridge deck slab connection construction method for positioning road bridge deck slabs adjacent to each other and coupling the road bridge deck slabs to each other, the road bridge deck slab connection construction method comprising: a step of disposing a first insertion portion of a position adjustment construction member in an accommodating portion of an appropriate receiving member of a plurality of receiving members embedded in each of the road bridge deck slabs adjacent to each other; and a step of clamping the position adjustment construction member and the receiving member between a pressing portion of a male thread body inserted through the position adjustment construction member and a female thread body in thread engagement with the male thread body and entering a guide portion having a diameter gradually reduced toward a distal end side of the first insertion portion into the accommodating portion while the guide portion is in abutment against an inclined guide surface of the accommodating portion to thereby position, through displacement, one or both of the receiving members embedded in the road bridge deck slabs adjacent to each other.

Classes IPC  ?

• E01D 19/12 - Caillebotis ou planchéiage des ponts; Fixation des traverses de rails ou de voies sur les ponts

Abrégé

This switch mechanism comprises: a magnetic switch that receives a first operation capable of changing first and second contact members from the contact state to the non-contact state or from the non-contact state to the contact state by means of an external magnetic field, and a second operation capable of changing the first and second contact members from the contact state to the non-contact state or from the non-contact state to the contact state at least once by means of the external magnetic field; and a control means operated in response to an operation with respect to the magnetic switch. The control means drives a power supply destination device upon reception of the second operation with respect to the magnetic sensor.

Classes IPC  ?

• H01H 36/00 - Interrupteurs actionnés par la variation du champ magnétique ou champ électrique, p.ex. par le changement de la position relative d'un aimant et d'un interrupteur, par écran

Abrégé

This acquired-information output terminal acquires only information output by a specific device and comprises: a first acquisition means for acquiring an identifier corresponding to the specific device; and a second acquisition means that is different from the first acquisition means, uses the identifier acquired by the first acquisition means to establish external communication through which the information output by the specific device can be acquired, and acquires said information.

Classes IPC  ?

• H04Q 9/00 - Dispositions dans les systèmes de commande à distance ou de télémétrie pour appeler sélectivement une sous-station à partir d'une station principale, sous-station dans laquelle un appareil recherché est choisi pour appliquer un signal de commande ou
• 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
• G06K 7/10 - Méthodes ou dispositions pour la lecture de supports d'enregistrement par radiation corpusculaire
• G06K 19/07 - Supports d'enregistrement avec des marques conductrices, des circuits imprimés ou des éléments de circuit à semi-conducteurs, p.ex. cartes d'identité ou cartes de crédit avec des puces à circuit intégré
• G06K 19/077 - Supports d'enregistrement avec des marques conductrices, des circuits imprimés ou des éléments de circuit à semi-conducteurs, p.ex. cartes d'identité ou cartes de crédit avec des puces à circuit intégré - Détails de structure, p.ex. montage de circuits dans le support

Abrégé

This unit-insertable/removable toxic object reducing/eliminating device causes a fluid to flow therein from the outside and reduces or eliminates a toxic object contained in the fluid, and is equipped with an insertable/removable unit that can be inserted in and removed from a device body and that has therein a space into which the fluid can flow. The insertable/removable unit is provided with, in the space, a reducing/eliminating means for reducing or eliminating a toxic object.

Classes IPC  ?

• A61L 9/18 - Désinfection, stérilisation ou désodorisation de l'air utilisant des phénomènes physiques des radiations
• A61L 9/20 - Désinfection, stérilisation ou désodorisation de l'air utilisant des phénomènes physiques des radiations des ultraviolets

Abrégé

The present invention is characterized by including: a cylindrical inner-wall assembly comprising a plurality of cylindrical inner walls that are parallel and that divide a space on the inner side of a support body; and a low reflectance part that is disposed on the surface of the cylindrical inner walls and that has an electromagnetic wave reflectance of no more than a prescribed amount. The present invention is also characterized in that electromagnetic waves are blocked by the cylindrical inner-wall assembly.

Classes IPC  ?

• G02B 5/22 - Filtres absorbants
• G02B 1/10 - Revêtements optiques obtenus par application sur les éléments optiques ou par traitement de la surface de ceux-ci

Abrégé

An electromagnetic wave emitting device comprising: a plurality of emitting units for emitting electromagnetic waves; a power feed unit for supplying electric power to at least one of the plurality of emitting units; a switching unit for switching the emitting unit to which the electric power is supplied by the power feeding unit; and a determination unit for determining the period and/or timing of the switching by the switching unit.

Classes IPC  ?

• H05B 47/105 - Commande de la source lumineuse en réponse à des paramètres détectés
• A61L 2/10 - Procédés ou appareils de désinfection ou de stérilisation de matériaux ou d'objets autres que les denrées alimentaires ou les lentilles de contact; Accessoires à cet effet utilisant des phénomènes physiques des radiations des ultraviolets
• C02F 1/30 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par irradiation
• C02F 1/32 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par irradiation par la lumière ultraviolette
• H05B 47/155 - Commande coordonnée de plusieurs sources lumineuses

Abrégé

The present invention includes: a base that transmits first electromagnetic waves having a first wavelength range; and a reflection layer that reflects second electromagnetic waves having a second wavelength range and transmits the first electromagnetic waves. The base is characterized in that: a region is formed in which a lateral cross-section forms an endless shape so as to surround an electromagnetic wave radiation source that radiates electromagnetic waves; and from among the electromagnetic waves radiated from the electromagnetic wave radiation source, the second electromagnetic waves are reflected, by the reflection layer, to a higher order within the inner circumferential surface of the base, thereby increasing the density of the second electromagnetic waves.

Classes IPC  ?

• B01J 19/12 - Procédés utilisant l'application directe de l'énergie ondulatoire ou électrique, ou un rayonnement particulaire; Appareils à cet usage utilisant des radiations électromagnétiques
• A61L 9/18 - Désinfection, stérilisation ou désodorisation de l'air utilisant des phénomènes physiques des radiations
• A61L 9/20 - Désinfection, stérilisation ou désodorisation de l'air utilisant des phénomènes physiques des radiations des ultraviolets

Abrégé

Disclosed is a method for collecting a pathogenic microorganism, the method being characterized by including: a step for taking subject gas from the outside into a container to fill the same; and a step for causing a carrier to adsorb or attach the pathogenic microorganism in the subject gas.

Classes IPC  ?

• C12N 1/04 - Conservation des micro-organismes à l'état viable
• C12M 1/26 - Inoculateur ou échantillonneur
• C12M 1/28 - Inoculateur ou échantillonneur incorporé au récipient
• C12Q 1/02 - Procédés de mesure ou de test faisant intervenir des enzymes, des acides nucléiques ou des micro-organismes; Compositions à cet effet; Procédés pour préparer ces compositions faisant intervenir des micro-organismes viables

Abrégé

The present invention has an object to be chewed and a surfactant encapsulated in the object to be chewed.

Classes IPC  ?

• A23L 29/00 - Aliments ou produits alimentaires contenant des additifs; Leur préparation ou leur traitement
• A23L 5/00 - Préparation ou traitement des aliments ou produits alimentaires en général; Aliments ou produits alimentaires ainsi obtenus; Leurs matériaux
• A23L 33/10 - Modification de la qualité nutritive des aliments; Produits diététiques; Leur préparation ou leur traitement en utilisant des additifs
• A61K 8/02 - Cosmétiques ou préparations similaires pour la toilette caractérisés par une forme physique particulière
• A61K 8/11 - Compositions encapsulées
• A61K 8/368 - Acides carboxyliques; Leurs sels ou anhydrides dans lesquels le groupe carboxyle est directement lié aux atomes de carbone du cycle aromatique
• A61K 8/96 - Cosmétiques ou préparations similaires pour la toilette caractérisés par la composition contenant des produits de constitution indéterminée ou leurs dérivés
• A61K 9/50 - Microcapsules
• A61K 9/68 - Préparations médicinales caractérisées par un aspect particulier du type chewing-gum
• A61K 45/00 - Préparations médicinales contenant des ingrédients actifs non prévus dans les groupes
• A61P 31/12 - Antiviraux
• A61Q 11/00 - Préparations pour le nettoyage des dents, de la bouche ou des prothèses dentaires, p.ex. dentifrices; Bains de bouche
• A23G 4/06 - Chewing-gum caractérisé par la composition

Abrégé

The present invention comprises: a flowpath that communicates a suction part which suctions a fluid and an discharge part which discharges the fluid, the flowpath being configured so that the path thereof is defined as non-linear and is set so as to be longer than the linear distance of the flowpath; and a decreasing/eliminating means in which a subject contained in the fluid and flowing downstream in the flowpath is subjected to decomposition and/or deactivation and/or sterilization.

Classes IPC  ?

• F24F 7/003 - Ventilation combinée avec le nettoyage de l'air
• A61L 2/10 - Procédés ou appareils de désinfection ou de stérilisation de matériaux ou d'objets autres que les denrées alimentaires ou les lentilles de contact; Accessoires à cet effet utilisant des phénomènes physiques des radiations des ultraviolets
• A61L 2/14 - Procédés ou appareils de désinfection ou de stérilisation de matériaux ou d'objets autres que les denrées alimentaires ou les lentilles de contact; Accessoires à cet effet utilisant des phénomènes physiques du plasma, c. à d. des gaz ionisés
• A61L 9/16 - Désinfection, stérilisation ou désodorisation de l'air utilisant des phénomènes physiques
• A61L 9/20 - Désinfection, stérilisation ou désodorisation de l'air utilisant des phénomènes physiques des radiations des ultraviolets
• A61L 9/22 - Ionisation
• B01J 19/00 - Procédés chimiques, physiques ou physico-chimiques en général; Appareils appropriés
• B01J 19/08 - Procédés utilisant l'application directe de l'énergie ondulatoire ou électrique, ou un rayonnement particulaire; Appareils à cet usage
• B01J 19/12 - Procédés utilisant l'application directe de l'énergie ondulatoire ou électrique, ou un rayonnement particulaire; Appareils à cet usage utilisant des radiations électromagnétiques
• C02F 1/02 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par chauffage
• C02F 1/32 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par irradiation par la lumière ultraviolette
• C02F 1/48 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout au moyen de champs magnétiques ou électriques
• F04D 25/08 - Ensembles comprenant des pompes et leurs moyens d'entraînement le fluide énergétique étant l'air, p.ex. pour la ventilation
• F24F 1/0071 - Climatiseurs individuels pour le conditionnement de l'air, p.ex. éléments séparés ou monoblocs ou éléments recevant l'air primaire d'une station centrale Éléments intérieurs, p.ex. ventilo-convecteurs comportant des moyens de purification de l’air fourni
• F24F 1/0076 - Climatiseurs individuels pour le conditionnement de l'air, p.ex. éléments séparés ou monoblocs ou éléments recevant l'air primaire d'une station centrale Éléments intérieurs, p.ex. ventilo-convecteurs comportant des moyens de purification de l’air fourni par des moyens électriques, p.ex. des ioniseurs ou des séparateurs électrostatiques

Abrégé

This structure state display system includes a measuring means, disposed in the structure, for measuring a physical state relating to the structure, an acquiring means for acquiring measurement information measured by the measuring means, and a creating means for creating a virtual model in which a display representing the physical state of the structure in a design model containing the structure has been changed by applying a virtual physical quantity corresponding to the measurement information to the design model, wherein the virtual model is displayed by a display means.

Classes IPC  ?

• G01M 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
• 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

Abrégé

The present invention comprises: sensors which are installed in target objects, and output physical state information about the target objects and/or the peripheries of the target objects; an information acquisition means which acquires the physical state information output by the sensors in association with installation location information about the sensors; and a calculation means which creates, in association with the physical state information, mapping image information at the installation locations of the sensors in spatial information formed by structural information about the target objects, geographical information including the target objects, and/or map information, wherein a mapping image based on the mapping image information can be displayed on a display means.

Classes IPC  ?

• G08B 27/00 - Systèmes d'alarme dans lesquels la condition déclenchant l'alarme est signalée par une station centrale à plusieurs sous-stations
• G09B 29/00 - Cartes; Plans; Graphiques; Tracés, p.ex. tracés de routes
• G09B 29/10 - Spots pour la lecture des cartes ou indicateurs de position par coordonnées; Aides pour la lecture des cartes

Abrégé

This rod body includes: radially-contracted surfaces that are formed with the radius from the axis being gradually reduced; radially-expanded surfaces that have a relatively large diameter and are formed from outer peripheries of protruding sections that are provided in a row in the axial direction; and radially-recessed surfaces that are formed from the bottom surfaces of recessed sections that are disposed alternatingly with the protruding sections by being recessed toward the axial direction. The radially-expanded surfaces and the radially-recessed surfaces are continuously disposed along the circumferential direction with respect to the radially-contracted surfaces. The protruding sections extend, continuously or intermittently, in a substantially arc shape, toward the circumferential direction, each including a reduced width section in which the width is reduced from the radially-expanded surface side toward the radially-contracted surface side.

Classes IPC  ?

• E04C 5/03 - Eléments d'armature en métal, p.ex. avec des revêtements rapportés de faible résistance à la flexion, c. à d. s'étendant essentiellement dans une ou deux dimensions avec échancrures, saillies, nervures ou analogues pour augmenter l'adhérence du béton
• E04C 5/18 - Pièces auxiliaires pour armatures, p.ex. pièces de séparation, étriers en métal ou substantiellement en métal
• E04G 21/12 - Montage d'éléments d'armature; Application de la précontrainte

Abrégé

A joining means provided with a reception member and an insertion member to be inserted into the reception member, wherein: the insertion member has an insertion section to be inserted into a reception space and an insertion engagement section that is provided on the outside of the insertion section; the reception member has an opening into which the insertion member can be inserted, the reception space that communicates with the opening, and an engagement body that is disposed in the reception space, that is provided with an internal engagement section that can engage with the insertion engagement section on the inside, and into which the insertion section can be inserted; the inside of the reception space has a guide section to guide the slant of the engagement body; the insertion engagement section and the internal engagement section are set in a relationship to have a designated amount of interference in a direction approximately perpendicular to the insertion direction of the insertion member; the insertion section can be inserted inside the engagement body by the entire engagement body or a portion thereof being displaced and/or deformed when the insertion member is inserted into the reception member; and the internal engagement section and the insertion engagement section are engaged in the state in which the insertion section is inserted to a designated position.

Classes IPC  ?

• E21D 11/04 - Revêtement avec des matériaux de construction
• F16B 17/00 - Moyens d'assemblage sans filetage d'éléments structuraux ou parties de machines par pénétration d'une partie d'un élément ou d'une pièce portée par un élément, dans un trou pratiqué dans un autre élément
• E04B 1/41 - Dispositifs d'assemblage spécialement adaptés pour être noyés dans du béton armé ou de la maçonnerie

Abrégé

The present invention involves: a first step in which a surface treatment is applied to a base material to form thereon a high-resistance layer having high electric resistivity; a second step in which metal plating parts are formed on the base material that has undergone the first step in such a manner as to allow a high-resistance layer to be formed thereon; and a third process in which a high-resistance layer is formed on the base material that has undergone the second step.

Classes IPC  ?

• C23C 28/00 - Revêtement pour obtenir au moins deux couches superposées, soit par des procédés non prévus dans un seul des groupes principaux , soit par des combinaisons de procédés prévus dans les sous-classes et
• C25D 11/36 - Phosphatation
• H01B 5/14 - Conducteurs ou corps conducteurs non isolés caractérisés par la forme comprenant des couches ou pellicules conductrices sur supports isolants
• H01B 13/00 - Appareils ou procédés spécialement adaptés à la fabrication de conducteurs ou câbles

Abrégé

The present invention is a screw cap rotation assist tool equipped with an operation unit (40) which is capable of rotating with a rotating body or a screw cap (10), and can be integrally or separately provided with the rotating body or screw cap (10), and also equipped with a first hinge part (21) which rotatably supports the operation unit (40) and connects the operation unit (40) and an outer-circumferential surface (18) to one another on the base end side of the operation unit (40), wherein the operation unit (40) is capable of transitioning between a first orientation state in which the operation unit (40) is near to and extends along the outer-circumferential surface (18), and a second orientation state in which the operation unit (40) rotates with the first hinge part (21) as the axis of rotation, and the tip thereof separates from the outer-circumferential surface (18) and moves in a diameter-expanding direction. The screw cap rotation assist tool is further configured in a manner such that a connecting band for connecting the base end section (41) to the outer-circumferential surface (18) via a second hinge part is provided in series on the tip of the operation unit (40) via a joint part. As a result, the screw cap rotation assist tool does not fall off of the screw cap and exhibits favorable rotation operability.

Classes IPC  ?

• B65D 41/04 - Capuchons ou couvercles en forme de capuchons filetés ou similaires, fixés par rotation
• B67B 7/18 - Dispositifs à main ou à moteur pour ouvrir des récipients fermés pour enlever les capsules filetées

Abrégé

[Problem] To make it possible to form an electrically conducting structure at various locations or in various members through a simple manufacturing process. [Solution] An electrically conducting structure of the present invention is provided with: a diamond-based region 20 based on diamond and/or a diamond-based material that becomes amorphous carbon; and an electrically conductive region 30 which is formed partially in the diamond-based region 20, has a higher graphite content than does the diamond-based material, and has a smaller electric resistivity than does the diamond-based material.

Classes IPC  ?

• H05K 3/10 - Appareils ou procédés pour la fabrication de circuits imprimés dans lesquels le matériau conducteur est appliqué au support isolant de manière à former le parcours conducteur recherché
• C01B 32/205 - Préparation
• H01B 1/04 - Conducteurs ou corps conducteurs caractérisés par les matériaux conducteurs utilisés; Emploi de matériaux spécifiés comme conducteurs composés principalement soit de compositions à base de carbone-silicium, soit de carbone soit de silicium
• H01B 5/14 - Conducteurs ou corps conducteurs non isolés caractérisés par la forme comprenant des couches ou pellicules conductrices sur supports isolants
• H01L 21/3205 - Dépôt de couches non isolantes, p.ex. conductrices ou résistives, sur des couches isolantes; Post-traitement de ces couches
• H01L 21/768 - Fixation d'interconnexions servant à conduire le courant entre des composants distincts à l'intérieur du dispositif
• H05K 1/09 - Emploi de matériaux pour réaliser le parcours métallique

Abrégé

This power receiving-type information acquisition and transmission device 101 is provided with one or more power receiving means 110 which receive power supply waves that can supply power, one or more power storage means 120 which store power obtained by the power receiving means 110, one or more information acquisition means 130 which acquire information by expending at least part of the aforementioned power of the power receiving means 110 and/or the power storage means 120, and one or more information transmission means 140 which utilize the power from the power storage means 120 to transmit information externally. This enables regular or steady information collection, and enables transmitting said information stably, on a permanent basis and remotely, i.e., either over a short or long distance externally.

Classes IPC  ?

• H04B 1/59 - Répondeurs; Transpondeurs

Abrégé

The present invention is provided with a fastening part and an interposition member, and when a member to be fastened is fastened, a fastening part-side seat part is formed in a male fastener, and a fastening part-facing part and a member-facing part are formed on the interposition member side. A first engagement mechanism (A) is formed between the fastening part-facing part and the fastening part-side seat part, and when at least the fastening part-side seat part tries to rotate in the direction in which the male faster in a fastened state is loosened, the fastening part-facing part and the fastening part-side seat part are engaged with each other to thereby prevent the relative rotations thereof. The interposition member is simultaneously engaged with a plurality of fastening parts that are fastened to the member to be fastened, thereby configuring a second engagement mechanism (B) in which even if rotational force in a specific direction acts on the interposition member, the relative rotations of the interposition member and the member to be fastened are prevented. Looseness between the male fastener and the member to be fastened is prevented by the actions of these first engagement mechanism (A) and second engagement mechanism (B).

Classes IPC  ?

• F16B 39/10 - Blocage des vis, boulons ou écrous dans lequel le verrouillage s'effectue après vissage par une plaque ou un anneau immobile par rapport au boulon ou à l'objet
• F16B 43/00 - Rondelles ou dispositifs équivalents; Autres dispositifs de support pour têtes de boulons ou d'écrous

Abrégé

The objective is to prevent the loosening of a structure with which a member (80) to be fastened and a base material (90) are fastened by means of a male screw body (10) and a washer (50). A screw-body-side seat part (22) is formed on the male screw body (10), and a first receiving part (60) and second receiving part (70) are formed on the washer side. A member-side seat part (82) is formed on the member (80) to be fastened. The first receiving part (60) and the screw-body-side seat part (22) have sawtooth-shaped recesses and protrusions. When an attempt is made to rotate the male screw body (10) in the direction of loosening, the recesses and protrusions engage one another, thereby preventing rotation. A recessed housing part of the member-side seat part (82) and the outer wall of the second receiving part (70) of the washer (50) have an eccentric circular shape. When an attempt is made to rotate the washer (50) in the direction of loosening, the eccentric circular shapes engage one another, thereby preventing rotation.

Classes IPC  ?

• F16B 39/24 - Blocage des vis, boulons ou écrous dans lequel le verrouillage se fait en même temps que le vissage ou le serrage par rondelles, rondelles à ressort ou plaques élastiques qui bloquent contre l'objet

Abrégé

[Problem] The present invention aims to provide, without an increase in cost, a directional indication structure for threaded bodies that enables the visual and tactile distinction between left-hand thread and right-hand thread threaded bodies, enables the identification, from the external appearance and the external surface, of which direction a threaded body should be rotated in order to be tightened or loosened, enables mass production and the like, has a good external appearance, and has form properties that do not impinge the properties inherent in the threaded body or the strength, etc. thereof. [Solution] Directional indicators are asymmetrically provided, in association with the direction of rotation of the threads, to the outer surface of a solid body constituting a threaded body, said directional indicators having corner portions which indicate the forward direction in the direction of rotation, and corner portions which indicate the direction in which the threaded body will advance when rotated in the forward direction in the direction of rotation.

Classes IPC  ?

• F16B 23/00 - Têtes de boulons ou de vis de forme spéciale pour permettre leur rotation à l'aide d'un outil
• F16B 35/06 - Têtes de forme particulière
• F16B 37/00 - DISPOSITIFS POUR ASSEMBLER OU BLOQUER LES ÉLÉMENTS DE CONSTRUCTION OU LES PARTIES DE MACHINES, p.ex. CLOUS, CHEVILLES, ÉCROUS, VIS, BOULONS, BAGUES ANNULAIRES FORMANT RESSORT, BRIDES OU COLLIERS, CLIPS OU PINCES, COINS; ASSEMBLAGES OU JOINTURES Écrous ou pièces similaires avec entrées de filetage

Abrégé

[Problem] The purpose of the present invention is to provide a form-rolling die and form-rolling method for a compound screw that use a cylindrical material to be threaded, enable the high-precision mass production of compound screws having a right-hand thread portion and a left-hand thread portion on the same region, do not cause rolling defects such as slips, and in which blockages do not occur even in the unlikely event of shavings being generated. [Solution] A form-rolling die structure is provided with die members which are pressed against a material to be threaded and which have rigid surfaces that are relatively displaced. The die members are equipped with a plurality of independent concave portions which form a substantially parallelogram shape when viewed from the normal of a virtual surface obtained by connecting the outermost portions of each of the rigid surfaces, and which are recessed from the virtual surface. Two of the corners at the sites corresponding to the four corners of the substantially parallelogram-shape of the concave portions are rounded. The periphery of each concave portion in the cross-section along the direction of the normal is rounded along the periphery of the substantially parallelogram shape. The concave portions form a substantially truncated-pyramid shape. The sites equivalent to the ridge lines of the concave portions are rounded in cross-sectional view perpendicular to the ridge line, and bases (35) are provided in the deepest sites (34).

Classes IPC  ?

• B21H 3/02 - Fabrication de corps hélicoïdaux ou de corps ayant certaines parties de forme hélicoïdale de corps à filetage extérieur

Abrégé

A female screw structure (1) in which strong coupling strength can be obtained by easy tightening. As shown in fig. 5, the structure is provided with a first female screw (2) and a second female screw (3), which form a pair. The first female screw (2) has a convex portion (2b) which: is reduced in diameter from the base end (2c) at one extremity to the tip end (2d); has, on the inside thereof, spiral grooves formed continuously with spiral grooves of the first female screw (2); and is provided with an engagement portion (2g) on the outer peripheral surface thereof. The second female screw (3) has a concave portion (3b) which: is reduced in diameter from the opening end (3d) at one extremity to the bottom surface (3c); has, formed on the inside thereof, a through hole which is in communication with a spirally grooved hole (3e) of the second female screw (3); and is provided with an engagement reception portion (3g) on the inner peripheral surface thereof. When the first female screw (2) and the second female screw (3) are screwed together on a male screw (B), the convex portion (2b) and the concave portion (3b) are fitted to each other, and the engagement portion (2g) and the engagement reception portion (3g) are engaged. Thus, the first female screw (2) and the second female screw (3) are coupled so as to prevent relative rotation in at least one direction.

Classes IPC  ?

• F16B 39/12 - Blocage des vis, boulons ou écrous dans lequel le verrouillage s'effectue après vissage par écrous de blocage, c. à d. contre-écrous