Tokyo Marui Co., Ltd.

Japan

Back to Profile

1-30 of 30 for Tokyo Marui Co., Ltd. Sort by
Query
Patent
World - WIPO
Aggregations Reset Report
Date
2019 4
Before 2019 26
IPC Class
F41B 11/643 - Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas having a piston effecting a compressor stroke during the firing of each shot the piston being spring operated the piston being arranged concentrically with the barrel 9
F41B 11/70 - Compressed-gas guns, e.g. air guns; Steam guns - Details not provided for in  or 7
F41B 11/50 - Magazines for compressed-gas guns; Arrangements for feeding or loading projectiles from magazines 4
F41B 11/55 - Magazines for compressed-gas guns; Arrangements for feeding or loading projectiles from magazines the projectiles being stored in stacked order in a removable box magazine, rack or tubular magazine 4
F41B 11/64 - Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas having a piston effecting a compressor stroke during the firing of each shot 4
See more
Found results for  patents

1.

FRICTION REDUCTION DEVICE TO REDUCE FRICTION BETWEEN PISTON AND CYLINDER IN GAS-TYPE REPLICA GUNS

      
Application Number JP2017040318
Publication Number 2019/092820
Status In Force
Filing Date 2017-11-08
Publication Date 2019-05-16
Owner TOKYO MARUI CO.,LTD. (Japan)
Inventor Iwasawa Iwao

Abstract

[Problem] To provide a friction reduction device to reduce friction between a piston and a cylinder. [Solution] A friction reduction device to reduce friction between a piston and a cylinder has a piston into which a gas flows and that retracts in order to load the next bullet, a cylinder that accommodates the piston so same can move, and a piston rolling body that is rotatably disposed in the piston. The piston rolling body is rotated by the piston rolling body rotatably disposed in the piston being in contact with the interior of the cylinder when the piston is retracting.

IPC Classes  ?

  • F41B 11/50 - Magazines for compressed-gas guns; Arrangements for feeding or loading projectiles from magazines
  • F41B 11/73 - Sealing arrangements; Pistons
  • F41B 11/89 - Compressed-gas guns, e.g. air guns; Steam guns specially adapted for particular purposes for toys

2.

DEVICE FOR INHIBITING FIRING OF SHELLS IN AN ELECTRIC GUN

      
Application Number JP2017034362
Publication Number 2019/058525
Status In Force
Filing Date 2017-09-22
Publication Date 2019-03-28
Owner TOKYO MARUI CO,LTD. (Japan)
Inventor Iwasawa Iwao

Abstract

[Problem] To provide a device for inhibiting the firing of shells which is capable of stopping the rotation of a motor when a bullet becomes a shell, without changing a conventional mechanical box. [Solution] This device for inhibiting the firing of shells is provided with: a switch which is provided in series with a contact point with which contact is made in order to pass a current through a motor when a trigger is pulled; and a current passage stopping part which receives an operation of a bullet detection device for detecting that a bullet has become a shell, and disconnects the switch to inhibit the passage of current through the motor.

IPC Classes  ?

  • F41B 11/71 - Electric or electronic control systems, e.g. for safety purposes
  • F41B 11/643 - Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas having a piston effecting a compressor stroke during the firing of each shot the piston being spring operated the piston being arranged concentrically with the barrel

3.

DEVICE FOR STOPPING FUNCTION FOR INHIBITING FIRING OF SHELLS

      
Application Number JP2017034363
Publication Number 2019/058526
Status In Force
Filing Date 2017-09-22
Publication Date 2019-03-28
Owner TOKYO MARUI CO,LTD. (Japan)
Inventor Iwasawa Iwao

Abstract

[Problem] To provide a device for stopping a function for inhibiting the firing of shells which is capable of stopping the function for inhibiting the firing of the shells in accordance with an arbitrary demand from a user. [Solution] This device for stopping a function for inhibiting the firing of shells is provided with a function stopping engagement part for inhibiting an operation performed by a detection movement part in which the detection movement part engages with a detection engagement part and protrudes, when the detection engagement part moves into a prescribed position in a bullet arrangement part which serves as a passage for discharging bullets. The detection engagement part is provided to a follower part which is impelled by a magazine spring, and which is provided so as to be capable of moving in the bullet arrangement part. When engaged with the detection movement part, the function stopping engagement part inhibits the operation of the detection movement part, and thus inhibits the protruding operation of the detection movement part.

IPC Classes  ?

  • F41B 11/55 - Magazines for compressed-gas guns; Arrangements for feeding or loading projectiles from magazines the projectiles being stored in stacked order in a removable box magazine, rack or tubular magazine
  • F41B 11/643 - Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas having a piston effecting a compressor stroke during the firing of each shot the piston being spring operated the piston being arranged concentrically with the barrel
  • F41B 11/70 - Compressed-gas guns, e.g. air guns; Steam guns - Details not provided for in  or

4.

DOT SIGHT

      
Application Number JP2017029181
Publication Number 2019/030912
Status In Force
Filing Date 2017-08-10
Publication Date 2019-02-14
Owner TOKYO MARUI CO,LTD. (Japan)
Inventor Iwasawa Iwao

Abstract

[Problem] To provide an objective lens made of a synthetic resin and used in a dot sight capable of taking aim at an object easily even if the object moves, and a dot sight that uses the objective lens. [Solution] An objective lens comprising a light-transmissive synthetic resin lens and a reflection surface arranged on the observer side of the synthetic resin lens or the opposite side of the lens. To reflect light emitted from a light source and thereby present a point to the observer virtually as a target, the reflection surface has a curve satisfying the following formula 1 and (1): (Formula 1) (1) −0.033 ≤ curvature c ≤ −0.008, and the cone coefficient k = −1.

IPC Classes  ?

  • G02B 25/00 - Eyepieces; Magnifying glasses
  • F41G 1/30 - Reflecting sights specially adapted for smallarms or ordnance
  • G02B 17/08 - Catadioptric systems
  • G02B 23/02 - Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors
  • G03B 13/06 - Viewfinders with lenses with or without reflectors
  • G03B 17/56 - Accessories

5.

ATTACHMENT DEVICE

      
Application Number JP2017006892
Publication Number 2018/154683
Status In Force
Filing Date 2017-02-23
Publication Date 2018-08-30
Owner TOKYO MARUI CO,LTD. (Japan)
Inventor Iwasawa Iwao

Abstract

[Problem] To provide an attachment device with which it is possible to securely connect a gun accessory to a gun body or an adapter connected to the gun body without misalignment in the radial direction. [Solution] The attachment device 10 comprises: a connecting member 20 having a hollow cylindrical shape and comprising a female threaded part 21 on the inner peripheral surface thereof in order to be threaded to a male threaded part on a gun body or on an adapter mounted to the gun body, an engaging part 22 which hinders rotation in the radial direction on the outer surface of the female threaded part 21, and a second engaging part 23 which hinders movement in the thrust direction while allowing rotation in the radial direction; a case 50 which is capable of rotating the connecting member 20 in the radial direction, and which is for positioning so as to enable movement in the thrust direction; and an engaging counterpart 60 which is positioned on the case 50, and which, by rising, engages with the engaging part 22 and the second engaging part 23 of the connecting member 20 positioned on the case 50.

IPC Classes  ?

6.

COCKING INDICATOR IN SIMULATED GUN

      
Application Number JP2016063908
Publication Number 2017/195278
Status In Force
Filing Date 2016-05-10
Publication Date 2017-11-16
Owner TOKYO MARUI CO,LTD. (Japan)
Inventor Iwasawa Iwao

Abstract

[Problem] To make it is easy to clearly understand the cocking state solely with an operation member that is independent from the piston cylinder mechanism, etc. [Solution] This simulated gun, cocked by operating an operation member provided on the gun main body, is provided with: an indicator which is arranged on the rear portion of the operation member and which is provided such that a portion thereof can appear on or retract from the operation member with a cocking operation of the operation member; a lock member which, when the portion of the indicator is protruding from the operation member, engages with the indicator so as to maintain the protruding state; and a release mechanism which changes the protruding state of the indicator to a non-protruding state.

IPC Classes  ?

  • F41B 11/70 - Compressed-gas guns, e.g. air guns; Steam guns - Details not provided for in  or
  • F41B 11/643 - Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas having a piston effecting a compressor stroke during the firing of each shot the piston being spring operated the piston being arranged concentrically with the barrel

7.

TRIGGER DEVICE IN SIMULATED GUN

      
Application Number JP2016063909
Publication Number 2017/195279
Status In Force
Filing Date 2016-05-10
Publication Date 2017-11-16
Owner TOKYO MARUI CO,LTD. (Japan)
Inventor Iwasawa Iwao

Abstract

[Problem] To further improve the feeling of operating a trigger in a simulated gun, and to make it possible to adjust the subtle feeling of operation experienced by a user. [Solution] A simulated gun which, with operation of the trigger, releases a sear in a cocked state, is configured such that an intermediate member arranged between the trigger and the sear is pivotably supported on the gun main body, the intermediate member disengageably engages with the sear at the rotating end side away from the pivot point, and the operation force of the trigger acts between the pivot point and the point of engagement with the sear.

IPC Classes  ?

  • F41A 19/06 - Mechanical firing mechanisms
  • F41B 11/64 - Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas having a piston effecting a compressor stroke during the firing of each shot

8.

BULLET RETENTION DEVICE

      
Application Number JP2016063910
Publication Number 2017/195280
Status In Force
Filing Date 2016-05-10
Publication Date 2017-11-16
Owner TOKYO MARUI CO,LTD. (Japan)
Inventor Iwasawa Iwao

Abstract

[Problem] The purpose of the present invention is to provide a bullet retention device which prevents the falling out of bullets remaining in a path for supplying bullets from a magazine to a simulated gun. [Solution] This bullet retention device is provided with: a path unit for supplying bullets from a magazine to a simulated gun; a first engagement unit which is arranged at one end of the path unit to prevent bullets from falling out; and a detection receiving unit which, by movement of a detection unit, which detects whether the magazine has been moved away from the path unit or if there are no more bullets in the magazine, disengages from said detection unit and thereby drives the first engagement unit. By this means, if the detection receiving unit disengages from the detection unit, then, in accordance with the movement of the detection receiving unit, the bullets remaining in the path unit can be prevented from falling out from said one end because the first engagement unit is protruding into the path unit.

IPC Classes  ?

  • F41B 11/55 - Magazines for compressed-gas guns; Arrangements for feeding or loading projectiles from magazines the projectiles being stored in stacked order in a removable box magazine, rack or tubular magazine
  • F41B 11/50 - Magazines for compressed-gas guns; Arrangements for feeding or loading projectiles from magazines

9.

DEVICE FOR PROJECTING A PROJECTILE BY COMPRESSED AIR USING ELECTROMAGNETIC PISTON COMPRESSION, ASSOCIATED CONTROL METHOD

      
Application Number EP2016078034
Publication Number 2017/085202
Status In Force
Filing Date 2016-11-17
Publication Date 2017-05-26
Owner TOKYO MARUI CO., LTD. (Japan)
Inventor Lemarquand, Guy

Abstract

The subject matter of the invention is a device for projecting a projectile B using compressed air, in particular provided to be built into a weapon replica, associated with an electric power source, characterised in that it includes a sheath (10) which receives electromagnetic means (12) for moving a piston (34) which is movable in said sheath (10) between a thrust nose (14), sealing the front (10‐1) of said sheath provided with a projection tube, and a breech (18) sealing the rear (10‐2) of said sheath. The invention also relates to a method for controlling said device.

IPC Classes  ?

  • F41B 11/64 - Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas having a piston effecting a compressor stroke during the firing of each shot
  • F41B 6/00 - Electromagnetic launchers

10.

BOLT STOP SHOCK ABSORBER FOR GUN

      
Application Number JP2015079289
Publication Number 2017/064806
Status In Force
Filing Date 2015-10-16
Publication Date 2017-04-20
Owner TOKYO MARUI CO,LTD. (Japan)
Inventor Iwasawa Iwao

Abstract

[Problem] To exhibit a high degree of resistance to breakage and exhibit high durability even if shock is repeatedly applied to a bolt stop by absorbing the shock of a bolt member. [Solution] A bolt stop shock absorber for a gun that is equipped with: a bolt member which is provided to the gun body so as to be capable of moving forward and backward, and moves backward with the pressure of gas generated by the firing of a bullet, thereby causing pressure to accumulate in a bolt spring, and moves forward with the release of the accumulated pressure, thereby performing bullet loading operation; and a bolt stop which stops the forward movement of the bolt member. This bolt stop shock absorber is characterized in that the bolt stop 31 has an engaging means 36 for engaging the bolt member moved forward after the firing of the last bullet, and comprises a shock absorbing means 40 for acting on the bolt stop in order to absorb the shock force applied to the bolt stop by the above engagement.

IPC Classes  ?

  • F41A 9/62 - Magazines having means for indicating the number of cartridges left in the magazine, e.g. last-round indicators
  • F41A 3/42 - Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrrel or breech housing having rocking locking elements, e.g. pivoting levers or vanes hand-operated
  • F41A 17/36 - Magazine safeties locking the gun in a safety condition when the magazine is empty or removed
  • F41A 17/40 - Last-round safeties

11.

NEXT-BULLET SEPARATION DEVICE IN SIMULATION GUN

      
Application Number JP2015067352
Publication Number 2016/203554
Status In Force
Filing Date 2015-06-16
Publication Date 2016-12-22
Owner TOKYO MARUI CO,LTD. (Japan)
Inventor Iwasawa Iwao

Abstract

[Problem] To provide a next-bullet separation device that is suitable for a simple simulation gun, and yields a stable bullet speed and trajectory. [Solution] A next-bullet separation device in a simulation gun having a configuration in which bullets adjacent to each other are supplied to a cartridge, a trigger operation causes a striker to advance toward the tip bullet that has reached the cartridge, and said bullet is fired, wherein said device is characterized in that provided rearward of the cartridge is a separation member that: protrudes into a striker movement channel when the striker 15 retracts; gets pushed out of the striker movement channel by the striker when the striker advances; and separates the tip bullet that has reached the cartridge and the next successive bullet.

IPC Classes  ?

12.

CENTERING DEVICE FOR ATTACHING BARREL

      
Application Number JP2015063661
Publication Number 2016/181505
Status In Force
Filing Date 2015-05-12
Publication Date 2016-11-17
Owner TOKYO MARUI CO,LTD. (Japan)
Inventor Iwasawa Iwao

Abstract

The gun-main-body side is provided with a gun main body-side connection part (24). The barrel side is provided with a barrel-side connection part (25). The gun main body-side connection part and the barrel-side connection part are connected to each other by an insertion structure. The gun main body-side connection part is provided with an inner circumferential surface (26) formed extending inward from a connection opening. The barrel-side connection part is provided with an outer circumferential surface (27) formed so as to fit to the inner circumferential surface. At least one from among the inner circumferential surface and the outer circumferential surface is formed into a tapered shape. The other from among the inner circumferential surface and the outer circumferential surface is formed into a shape capable of moving along the tapered shape. The gun main body-side connection part and the barrel-side connection part are pulled in a direction along a center line by a coupling means (35), the inner circumferential surface or the outer circumferential surface which has the tapered shape, and the shape capable of moving therealong are fitted together, and the barrel is centered.

IPC Classes  ?

  • F41A 21/48 - Barrel mounting means, e.g. releasable mountings for replaceable barrels
  • F41B 11/70 - Compressed-gas guns, e.g. air guns; Steam guns - Details not provided for in  or

13.

SHOCK-ABSORPTION DEVICE FOR PISTON MECHANISM OF IMITATION GUN

      
Application Number JP2015063662
Publication Number 2016/181506
Status In Force
Filing Date 2015-05-12
Publication Date 2016-11-17
Owner TOKYO MARUI CO,LTD. (Japan)
Inventor Iwasawa Iwao

Abstract

[Problem] To attenuate the impact exerted on a piston mechanism part, and improve durability, in an imitation gun in which an air current is ejected by an operation of the piston mechanism part to fire a bullet. [Solution] An imitation gun in which an air current is ejected by an operation of a piston mechanism part to fire a bullet is characterized in that: a piston stop 50 capable of moving relative to the piston mechanism part 15 is provided; and, in order to absorb the impart force accompanying operation of the piston mechanism part, the piston stop is attached to one constituent member of the piston mechanism part, and a shock-absorption means 57 is provided between the piston stop and another constituent member of the piston mechanism part.

IPC Classes  ?

  • F41B 11/643 - Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas having a piston effecting a compressor stroke during the firing of each shot the piston being spring operated the piston being arranged concentrically with the barrel

14.

SHOCK-ABSORPTION DEVICE FOR GUN BOLT STOP

      
Application Number JP2015063663
Publication Number 2016/181507
Status In Force
Filing Date 2015-05-12
Publication Date 2016-11-17
Owner TOKYO MARUI CO,LTD. (Japan)
Inventor Iwasawa Iwao

Abstract

[Problem] To provide a shock-absorption device for a gun bolt stop, which exhibits high durability, and is extremely resilient to breakage, even if an impact is repeatedly exerted on a bolt stop member as a result of absorbing the impact of a bolt. [Solution] A bolt stop device for a gun is provided with: a bolt which is provided to a gun main body so as to be capable of advancing and retreating, causes pressure to accumulate in a buffer spring while retreating in accordance with an operation of the gun, and advances as a result of the discharge of the accumulated pressure; and a bolt stop member which stops the advancing bolt. The bolt stop member 62 is provided with an engagement means 59 for engaging with the advancing bolt 29. A shock-absorption means 70 is provided which acts on the bolt stop member in order to absorb the impact force exerted on the bolt stop member by the engagement means.

IPC Classes  ?

  • F41B 11/643 - Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas having a piston effecting a compressor stroke during the firing of each shot the piston being spring operated the piston being arranged concentrically with the barrel
  • F41A 5/34 - Energy accumulator systems, i.e. systems for opening the breech-block by energy accumulated during barrel or gas piston recoil with spring accumulators
  • F41A 9/07 - Reciprocating conveyors, i.e. conveyors pushing a plurality of ammunition during the feeding stroke

15.

MULTIPLE BULLET FIRING-TYPE ELECTRIC GUN

      
Application Number JP2015058934
Publication Number 2016/151763
Status In Force
Filing Date 2015-03-24
Publication Date 2016-09-29
Owner TOKYO MARUI CO,LTD. (Japan)
Inventor Iwasawa Iwao

Abstract

An electric gun is provided having a multiple bullet continuous firing function which enables the continuous firing of multiple bullets without requiring a cocking operation. This electric gun having multiple barrels is provided with: a cylinder assembly which is positioned behind the multiple barrels, has an air injection nozzle (24) at the leading end, and comprises multiple cylinders (21, 22) inside of which pistons (31, 32, 33) carry out reciprocating motion; a piston assembly which comprises the aforementioned pistons (31, 32, 33) that carry out a reciprocating motion inside of the cylinders (21, 22) to generate compressed air, which combines the multiple pistons (31, 32, 33) in a single place at a rear joint (34), and which further comprises one piston shaft (35) having a rack (36) along the reciprocating direction and provided integrally with the joint (34); and an electrically driven mechanism which retracts the piston assembly, accumulates pressure in an elastic member and drives an output gear that meshes with the rack (36) in order to compress air by releasing the accumulated pressure.

IPC Classes  ?

  • F41B 11/71 - Electric or electronic control systems, e.g. for safety purposes
  • F41B 11/643 - Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas having a piston effecting a compressor stroke during the firing of each shot the piston being spring operated the piston being arranged concentrically with the barrel

16.

CUT-OFF DEVICE OF ELECTRIC MECHANISM IN IMITATION GUN

      
Application Number JP2015058935
Publication Number 2016/151764
Status In Force
Filing Date 2015-03-24
Publication Date 2016-09-29
Owner TOKYO MARUI CO,LTD. (Japan)
Inventor Iwasawa Iwao

Abstract

In order to enable cut-off control of a switch without depending on a sector gear, thereby eliminating layout restraints of a piston cylinder mechanism and electric mechanism in an imitation gun, a switching mechanism (55) is provided which controls a drive circuit of an electric device in order to select either a single shot mode for firing a single bullet with a single reciprocating motion of the pistol cylinder mechanism, or a continuous firing mode for firing multiple bullets with multiple reciprocating motions. The switching mechanism comprises a selector unit for selecting between at least the single shot mode and the continuous firing mode, a switch (18(53)) which closes a drive circuit by operation of the trigger, and a cut-off member (54) which turns the switch off when single shot mode is selected. The position of the piston cylinder mechanism where the cut-off member and a movable part engage is configured to be a front part disposed to the front of the movable part in the direction of the reciprocating motion, and the timing selection range after retraction of the movable part begins and until the aforementioned front part engages with the cut-off member is expanded.

IPC Classes  ?

  • F41B 11/70 - Compressed-gas guns, e.g. air guns; Steam guns - Details not provided for in  or

17.

BULLET FEED PORT OPENING AND CLOSING DEVICE IN IMITATION GUN

      
Application Number JP2015058937
Publication Number 2016/151766
Status In Force
Filing Date 2015-03-24
Publication Date 2016-09-29
Owner TOKYO MARUI CO,LTD. (Japan)
Inventor Iwasawa Iwao

Abstract

In an imitation gun which generates compressed air by the action of a piston cylinder mechanism and injects and fires the compressed air from a nozzle into a bullet loaded in a barrel, this bullet feed port opening and closing device is provided with a connecting member (63) which retracts the nozzle accompanying the action of a movable part of the piston cylinder mechanism, and, in order to open a bullet feed port (62) which communicates with the front of the nozzle, transmits the aforementioned action of the movable unit to the nozzle. The linking member comprises multiple parts, which are divided into movable unit-side parts and the nozzle-side parts. A nozzle-side part and a movable unit-side part are configured to be capable of engaging and disengaging by means of an engagement mechanism (65), such that the nozzle-side part and the movable unit-side part retract as a single body to open the bullet feed port, and, after the nozzle-side component is separated from the movable unit-side part, which continues to retract, an open state is maintained for a fixed period of time, and thereafter, the movable unit-side part forms a single body with the nozzle-side part due to the forward motion of the movable unit-side part.

IPC Classes  ?

  • F41B 11/50 - Magazines for compressed-gas guns; Arrangements for feeding or loading projectiles from magazines
  • F41B 11/71 - Electric or electronic control systems, e.g. for safety purposes

18.

HOP-UP ADJUSTING DEVICE IN IMITATION GUN

      
Application Number JP2015058936
Publication Number 2016/151765
Status In Force
Filing Date 2015-03-24
Publication Date 2016-09-29
Owner TOKYO MARUI CO,LTD. (Japan)
Inventor Iwasawa Iwao

Abstract

In order to accurately perform ballistic adjustment of bullets loaded in an imitation gun having multiple barrels (11, 13), this hop-up adjusting device adjusts bullet trajectory when firing bullets loaded into bullet loading parts of the barrels (11, 13). The hop-up adjusting device is provided with: multiple pressure members (61, 62, 63) for individually imparting rotation to each bullet by applying pressure to the bullets loaded in the bullet loading parts; linking members (64, 65, 66) which are provided on the side of the gun main body with one end arranged facing the pressure members (61, 62, 63) and the other end arranged facing operation units (67, 68, 69), and which can transmit operations of the operation units (67, 60, 69) to the pressure members (61, 62, 63); and the aforementioned operation units (67, 60, 69), which are provided on the gun main body side in order to adjust the amount of hop-up.

IPC Classes  ?

  • F41B 11/70 - Compressed-gas guns, e.g. air guns; Steam guns - Details not provided for in  or

19.

DISPLACEMENT SYSTEM OF MOTOR ATTACHMENT ANGLE IN IMITATION GUN

      
Application Number JP2015058938
Publication Number 2016/151767
Status In Force
Filing Date 2015-03-24
Publication Date 2016-09-29
Owner TOKYO MARUI CO,LTD. (Japan)
Inventor Iwasawa Iwao

Abstract

In order to enable changing the positional relation between a motor side that includes an output gear (53) and a gear box (55) side that includes an input gear (54) to a different positional relation while maintaining high accuracy, an imitation gun which drives a piston cylinder mechanism by an electric mechanism and fires bullets with generated compressed air comprises a system that allows displacement of the attachment angle between the input gear of a gear box and the output gear of a motor holder (43) configuring the electric mechanism. Therein, the output gear and the input gear comprise bevel gears, and at least two connection units (57, 58, 59) are provided on the gear box side, while connection partner units (61, 62) that match the connection units are provided on the motor holder side. The connection units are disposed on the same circumference centered on the rotational axis (60) of the input gear, and on both sides of the radial line (54L) that passes through the rotational axis of the input gear, and the angles (A, B) formed by the radial line and the line that connects each connection unit and the rotational axis of the input gear are configured to be unequal (A≠B).

IPC Classes  ?

  • F41B 11/646 - Arrangements for putting the spring under tension
  • F41B 11/643 - Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas having a piston effecting a compressor stroke during the firing of each shot the piston being spring operated the piston being arranged concentrically with the barrel
  • F41B 11/71 - Electric or electronic control systems, e.g. for safety purposes

20.

POWER RESTRICTING DEVICE FOR IMITATION GUN

      
Application Number JP2014066674
Publication Number 2015/198393
Status In Force
Filing Date 2014-06-24
Publication Date 2015-12-30
Owner TOKYO MARUI CO,LTD. (Japan)
Inventor Iwasawa Iwao

Abstract

[Problem] To limit the kinetic energy of a fired bullet to a specified value, even when a bullet that has a larger mass than a plastic BB pellet is used. [Solution] In an imitation gun wherein a bullet is arranged in an airstream injection channel and is fired by means of a compressed airstream, an airstream leakage part (20) that leaks the compressed airstream is formed in the injection channel or in a section that leads into the injection channel as a means for restricting the firing power of the bullet (15) in accordance with the mass of the bullet.

IPC Classes  ?

  • F41B 11/60 - Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas
  • F41B 11/56 - Magazines for compressed-gas guns; Arrangements for feeding or loading projectiles from magazines the projectiles being stored in stacked order in a removable box magazine, rack or tubular magazine the magazine also housing a gas cartridge
  • F41B 11/62 - Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas with pressure supplied by a gas cartridge
  • F41B 11/643 - Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas having a piston effecting a compressor stroke during the firing of each shot the piston being spring operated the piston being arranged concentrically with the barrel
  • F41B 11/70 - Compressed-gas guns, e.g. air guns; Steam guns - Details not provided for in  or

21.

POWER RESTRICTING DEVICE FOR IMITATION GUN

      
Application Number JP2014066675
Publication Number 2015/198394
Status In Force
Filing Date 2014-06-24
Publication Date 2015-12-30
Owner TOKYO MARUI CO,LTD. (Japan)
Inventor Iwasawa Iwao

Abstract

[Problem] To make minimum improvements in order to limit the kinetic energy of a fired bullet to a specified value, even when a bullet that has a larger mass than a plastic BB pellet is used. [Solution] In an imitation gun wherein a bullet is arranged in an airstream injection channel and is fired by means of a compressed airstream, an airstream leakage part (20) that leaks the compressed airstream is formed in the injection channel or in a section that leads into the injection channel as a means for restricting the firing power of the bullet (15) in accordance with the mass of the bullet, the airstream leakage part including the bullet, which momentarily blocks the compressed airstream, a flow channel that, as a result of the blockage, leaks the compressed airstream due to the increased pressure of the compressed airstream, and a flow channel opening/closing mechanism.

IPC Classes  ?

  • F41B 11/724 - Valves; Arrangement of valves for gas pressure reduction
  • F41B 11/56 - Magazines for compressed-gas guns; Arrangements for feeding or loading projectiles from magazines the projectiles being stored in stacked order in a removable box magazine, rack or tubular magazine the magazine also housing a gas cartridge
  • F41B 11/62 - Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas with pressure supplied by a gas cartridge
  • F41B 11/72 - Valves; Arrangement of valves
  • F41B 11/723 - Valves; Arrangement of valves for controlling gas pressure for firing the projectile only

22.

DEVICE FOR IDENTIFYING GUN OPERATION IN SIMULATED GUN

      
Application Number JP2013073186
Publication Number 2015/029189
Status In Force
Filing Date 2013-08-29
Publication Date 2015-03-05
Owner TOKYO MARUI CO,LTD. (Japan)
Inventor Iwasawa Iwao

Abstract

 When an operation on a gun body is transmitted by a transmitting unit, the accuracy with which the firing of a bullet is detected in the transmitting unit is dramatically increased and malfunction is substantially prevented. A device for identifying a gun operation, a transmitting unit being provided to a gun body, a receiving unit being positioned away from the gun body, and the operated gun being distinguished from another gun by the action of the receiving unit receiving a firing signal once the firing signal has been transmitted by the transmitting unit in concert with the firing operation of the gun body, wherein the device for identifying a gun operation is characterized in being provided with a transmitting switch (17) connected to the transmitting unit (16) and used to apply the transmission condition of the firing signal at least to the transmitting unit, and an actuating unit (20) that actuates according to the actuating state of the transmitting unit, and when the transmitting switch is operated by a trigger for performing the firing action and the two conditions of an electric current change resulting from the firing operation and actuation of the actuating unit are satisfied, a firing signal that a bullet is fired is transmitted from the transmitting unit along with an ID unique the gun body.

IPC Classes  ?

  • F41A 33/00 - Adaptations for training; Gun simulators
  • A63F 9/02 - Shooting or hurling games
  • A63H 5/04 - Pistols or machine guns operated without detonators; Crackers
  • A63H 33/18 - Throwing or slinging toys

23.

DEMOUNTABLE GAS TANK IN IMITATION GUN

      
Application Number JP2014068319
Publication Number 2015/019780
Status In Force
Filing Date 2014-07-09
Publication Date 2015-02-12
Owner TOKYO MARUI CO,LTD. (Japan)
Inventor Iwasawa Iwao

Abstract

[Problem] To provide a demountable gas tank for an imitation gun, the gas tank having a simple structure and preventing liquefied gas from leaking therefrom. [Solution] A demountable gas tank in an imitation gun is provided with a gas jetting part (35) located in the upper part of a tank body (30) in a standard state in which a gun barrel is directed approximately horizontally, and a gas injection part (31) located below the gas jetting part of the tank body. The gas injection part comprises a gas injection pipe (32) directed approximately horizontally in the standard state, and comprises an injection valve (33) for injecting gas, the gas jetting part comprises a gas jetting pipe directed approximately horizontally in the standard state, and comprises an on-off valve (37) which is closed when not mounted in a gun body and is opened when mounted therein, both the gas jetting pipe and the gas injection pipe are located in the same side surface of the tank body, and an inner end (36e) of the gas jetting pipe is disposed so as to be located inside an inner end (32e) of the gas injection pipe.

IPC Classes  ?

  • F41B 11/62 - Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas with pressure supplied by a gas cartridge
  • A63H 33/18 - Throwing or slinging toys

24.

DEVICE FOR IDENTIFYING GUN OPERATION IN IMITATION GUN

      
Application Number JP2013063436
Publication Number 2014/184875
Status In Force
Filing Date 2013-05-14
Publication Date 2014-11-20
Owner TOKYO MARUI CO,LTD. (Japan)
Inventor Iwasawa Iwao

Abstract

[Problem] To transmit an operation performed on a gun body using a transmitting unit, and accurately specify the operated gun body through actuation of an identification means provided to a receiving unit. [Solution] A device in which a transmitting unit is provided to a gun body and a receiving unit is provided at a position set at a distance from the gun body side, an operation performed on the gun body causes a signal to be transmitted from the transmitting unit, the signal is received by the receiving unit, and the gun that has been operated is identified from amongst other guns, wherein: the gun body has an operation detection device for detecting operation of the gun body. The device for identifying gun operation in an imitation gun is provided with: a transmitting unit (16) for transmitting, with an ID unique to the gun body, the detection signal obtained by the operation detection device; and a receiving unit (27) for receiving, with the ID, the detection signal transmitted from the transmitting unit. The receiving unit is provided with an identification means for specifying the gun body that has been operated using the ID and enabling data specified by the ID to be sensorily ascertained.

IPC Classes  ?

  • F41A 33/04 - Acoustical simulation of gun fire, e.g. by pyrotechnic means
  • A63H 5/04 - Pistols or machine guns operated without detonators; Crackers
  • A63H 33/18 - Throwing or slinging toys

25.

SOUND-EFFECT GENERATION DEVICE FOR IMITATION GUN

      
Application Number JP2013062640
Publication Number 2014/178119
Status In Force
Filing Date 2013-04-30
Publication Date 2014-11-06
Owner TOKYO MARUI CO,LTD. (Japan)
Inventor Iwasawa Iwao

Abstract

[Problem] To enable a firing sound having a force equivalent to the firing of live ammunition to be heard as a result of a firing operation. [Solution] A sound-effect generation device for an imitation gun comprises: a transmission unit provided to a gun-main-body side; and a reception unit disposed in a position at a distance from the gun main body. The transmission unit is activated by a firing operation at the gun-main-body side, thereby causing a firing sound to be generated by the reception unit. The transmission unit (11) is provided with: a vibration detection sensor (12) for detecting vibration generated in the gun main body by a firing operation; and a weak-radio-wave transmitter which, on the basis of a vibration detected by the vibration detection sensor, transmits weak radio waves as an on signal. The reception unit (21) is provided with: a control circuit (24) which receives the weak radio waves transmitted from the transmission unit, and reads sound-effect data stored in a storage device (23); and a sound-effect generation unit (26) for enabling the read data to be heard via an amplifier.

IPC Classes  ?

  • F41A 33/04 - Acoustical simulation of gun fire, e.g. by pyrotechnic means
  • A63H 5/00 - Musical or noise-producing devices for additional toy effects other than acoustical
  • A63F 9/02 - Shooting or hurling games

26.

SOUND-EFFECT GENERATION DEVICE FOR IMITATION GUN

      
Application Number JP2013062725
Publication Number 2014/178136
Status In Force
Filing Date 2013-05-01
Publication Date 2014-11-06
Owner TOKYO MARUI CO,LTD. (Japan)
Inventor Iwasawa Iwao

Abstract

[Problem] To achieve reproduction of a clear firing sound by generating a firing sound using a sound-production means provided to a reception-unit side, and to reproduce the clear firing sound while limiting one transmitter to one receiver. [Solution] In a sound-effect generation device for an imitation gun, a transmission unit is provided to a gun-main-body side, a reception unit is provided in a position at a distance from the gun-main-body side, and the transmission unit is activated by a firing operation of the gun main body, to cause a firing sound to be generated by a sound-production means provided to the reception-unit side. The sound-effect generation device for the imitation gun is configured from: the transmission unit (16) which has, provided to the gun-main-body side, a firing detection device (19) for detecting firing operations, said transmission unit transmitting, along with a unique ID of the gun main body, a firing detection signal generated by the firing detection device; and the reception unit (27) which receives the firing detection signal and the ID transmitted from the transmission unit, which uses the ID to identify the transmission unit (16), and which is provided with the sound-production means (39) for reproducing the firing sound.

IPC Classes  ?

  • F41A 33/04 - Acoustical simulation of gun fire, e.g. by pyrotechnic means
  • A63H 5/00 - Musical or noise-producing devices for additional toy effects other than acoustical
  • A63F 9/02 - Shooting or hurling games

27.

SAFETY DEVICE IN IMITATION GUN

      
Application Number JP2007056140
Publication Number 2008/114461
Status In Force
Filing Date 2007-03-19
Publication Date 2008-09-25
Owner TOKYO MARUI CO., LTD. (Japan)
Inventor Iwasawa, Tatsuo

Abstract

A safety device in an imitation gun having a magazine fixed removably to the gun body for preventing the risk of discharging a remaining bullet which may takes place after removing the magazine from the gun body. In an imitation gun having a magazine being fixed removably to the gun body, and a piston device for supplying a bullet in the magazine to the bullet loading portion of the gun body and jetting compressed air to the bullet arranged in the bullet loading portion, a trigger member (15) having an engaged portion engaging with the piston side engaging portion and advancing a piston by disengaging is provided in the gun body in order to retract the piston of the piston device (22) as a result of the discharge operation at the drive section. The trigger member is provided in the gun body movably in the advancing/retracting direction of the piston and movably in such a direction that the engaged portion disengages from the engaging portion. A return spring (16) for assisting movement in the same direction when the piston advances is provided for the trigger member (15), and a resilient body (36) provided in the magazine is used as a means for urging the trigger member in the engaging direction of the engaging portion with the engaged portion.

IPC Classes  ?

  • F41B 11/50 - Magazines for compressed-gas guns; Arrangements for feeding or loading projectiles from magazines
  • F41B 11/68 - Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas the gas being pre-compressed before firing
  • F41B 11/70 - Compressed-gas guns, e.g. air guns; Steam guns - Details not provided for in  or

28.

SIDE BULLET FEED DEVICE IN IMITATION GUN

      
Application Number JP2007056142
Publication Number 2008/114463
Status In Force
Filing Date 2007-03-19
Publication Date 2008-09-25
Owner TOKYO MARUI CO., LTD. (Japan)
Inventor Iwasawa, Tatsuo

Abstract

In an imitation gun where a bullet feed passage and another component provided in the gun body provide a parallel arrangement, even a small gun can be modeled while keeping its prototype reasonably. Furthermore, a bullet can be prevented from falling off from the gun when a magazine is changed. In an imitation gun where a bullet feed passage for supplying a bullet in a magazine to the bullet loading portion in the gun body is provided in the gun body, and the bullet feed passage and another component provided in the gun body provide a parallel arrangement, the bullet feed passage (41A) for supplying a bullet from a magazine (33) to a bullet loading portion (28a) and another component (41B) provided in the gun body are arranged almost side by side in the gun body, and the bullet inlet (28b) of the bullet loading portion for supplying a bullet pushed out from the bullet feed passage is opened at that side position of the bullet loading portion deviated to the right or the left.

IPC Classes  ?

  • F41B 11/64 - Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas having a piston effecting a compressor stroke during the firing of each shot
  • F41B 11/55 - Magazines for compressed-gas guns; Arrangements for feeding or loading projectiles from magazines the projectiles being stored in stacked order in a removable box magazine, rack or tubular magazine
  • F41B 11/643 - Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas having a piston effecting a compressor stroke during the firing of each shot the piston being spring operated the piston being arranged concentrically with the barrel
  • F41B 11/646 - Arrangements for putting the spring under tension

29.

RECOIL SHOCK DEVICE IN TOY GUN

      
Application Number JP2007053439
Publication Number 2008/099514
Status In Force
Filing Date 2007-02-16
Publication Date 2008-08-21
Owner TOKYO MARUI CO., LTD. (Japan)
Inventor Iwasawa, Tatsuo

Abstract

When the movable portion of a piston cylinder and a weight are provided separately, recoil shock equivalent to that obtained by increasing the piston weight can be attained without increasing the piston weight. Furthermore, recoil shock similar to that by an actual gun is attained without spoiling the appearance. In order to drive a weight by operating the movable portion of a piston cylinder producing compressed air and to obtain simulated reaction, i.e. recoil shock, a connecting portion (31) being moved in the retreat direction by the movable portion (13) is provided, and a recoil spring (35) being brought into a compressed state on receiving a force transmitted by the movable portion (13) to the weight (33) through the connecting portion (31) is provided. Reaction incident to the movement of the weight (33) when the recoil spring (35) is compressed and then elongated by its resilient force is transmitted as recoil shock to the gun body (37).

IPC Classes  ?

  • F41B 11/55 - Magazines for compressed-gas guns; Arrangements for feeding or loading projectiles from magazines the projectiles being stored in stacked order in a removable box magazine, rack or tubular magazine
  • F41B 11/644 - Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas having a piston effecting a compressor stroke during the firing of each shot the piston being spring operated having an additional slidable mass moving in the opposite direction to the piston, e.g. for recoil reduction
  • F41B 11/646 - Arrangements for putting the spring under tension

30.

COMPRESSED AIR CONTROL DEVICE OF AIR GUN

      
Application Number JP2006308380
Publication Number 2007/122719
Status In Force
Filing Date 2006-04-14
Publication Date 2007-11-01
Owner TOKYO MARUI CO, LTD. (Japan)
Inventor Iwasawa, Tatsuo

Abstract

A bullet shot is given a necessary power without using a strong spring in an air gun in which the movable part of a piston/cylinder device is driven by a power source such as a motor. In the air gun which has the piston/cylinder device installed in the gun body and in which the air is compressed by the forward movement of the movable part, a bullet on the jetting axis of the compressed air so that the bullet can be shot, the bullet (B) supplied is disposed at the loading position (17) on the jetting axis of the compressed air when the movable member (14) is moved backward. To jet the compressed air to the loading position, a shooting nozzle (20) is fitted to the fixed member (13) of the piston/cylinder device (12) slidably in the longitudinal direction. A compressed air control device comprises a drive mechanism (21) for compressing the air by forwardly moving the movable member (14) of the piston/cylinder device (12) and a return spring (22) for returning the forward moved movable member (14) to the original position. A valve mechanism (35) opened when the movable member (14) is moved forward and the pressure in the piston/cylinder device (12) is increased is fitted to the shooting nozzle (20).

IPC Classes  ?

  • F41B 11/64 - Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas having a piston effecting a compressor stroke during the firing of each shot