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1. 发明专利

JPH0784991B2 失效
公开(公告)号：JPH0784991B2
公开(公告)日：1995-09-13
申请号：JP35435392
申请日：1992-11-28
IPC分类号： F41A3/38 , F41A7/08 , F41A19/13 , F41A19/28

2. 发明专利

JPH0217392A AUTOMATIC CHARGING TYPE SMALL ARM 失效
公开(公告)号：JPH0217392A
公开(公告)日：1990-01-22
申请号：JP22486288
申请日：1988-09-09
申请人： BIKUTORII AAMUZU CO LTD
发明人： DEBITSUDO EDOWAADO SUMISU
IPC分类号： F41A3/00 , F41A3/38 , F41A5/02 , F41A17/42 , F41A21/48 , F41C20060101
摘要： PURPOSE: To facilitate decomposition and assembly of a self loading firearm, by permitting release of a lock block by means of hold open means only at the time that a breech block slide is sufficiently held at a retracted position. CONSTITUTION: When a breech block slide B is held at the retracted position by means of a slide portion hold open engaging fitting E, a frontward and downward inclination angle G3 of an open engaging fitting G is removed from an end portion 13 of a locking engaging fitting and an arm E1 is removed from a frame recessed portion A5. A stud E15 is inserted on a locking block lug F14 and a lug 14 and an entire end portion of a locking block F are pushed down. Then, a barrel lug C8 is moved in a frontward direction on the rear portion of the locking block F, and the barrel C is removed from the slide B and the pistol. In this manner, when only the barrel is necessary, it can be easily removed from the firearm.

3. 发明专利

JPS57105696A SAFETY DEVICE FOR TRIGGER OF GAS PUMP TYPE SHOTGUN 失效
公开(公告)号：JPS57105696A
公开(公告)日：1982-07-01
申请号：JP17469081
申请日：1981-11-02
申请人： FRANCHI SPA LUIGI
发明人： REONARUDO OTSUTORIINI
IPC分类号： F41A17/46 , F41A3/38

4. 发明专利

JPWO2017064806A1 銃におけるボルトストップ緩衝装置审中-公开
公开(公告)号：JPWO2017064806A1
公开(公告)日：2018-08-09
申请号：JP2015079289
申请日：2015-10-16
申请人：株式会社東京マルイ
发明人：岩澤巌
IPC分类号： F41A9/62 , F41A17/36 , F41A3/38
CPC分类号： F41A3/68 , F41A3/42 , F41A9/62 , F41A17/36 , F41A17/40
摘要：要約課題ボルト部材の衝撃を緩衝することによってボルトストップに繰り返し衝撃が加えられても、極めて破損し難く、高い耐久性が発揮されるものとする。解決手段銃本体に前進後退可能に設けられ、弾丸発射によって発生したガスの圧力により後退してボルトスプリングを蓄圧し、蓄圧された圧力の解放により前進して弾丸装填の動作を行なうボルト部材と、ボルト部材の前進を停止させるボルトストップを備えた銃において、ボルトストップ31は、最終弾丸発射後に前進して来るボルト部材と係合する係合手段36を有し、上記係合によってボルトストップに加えられる衝撃力を緩衝するために、ボルトストップに作用する緩衝手段40を具備したことを特徴とする。選択図図1

5. 发明专利

JPS5049898A 失效
公开(公告)号：JPS5049898A
公开(公告)日：1975-05-02
申请号：JP6099774
申请日：1974-05-31
IPC分类号： F41A3/00 , F41A3/12 , F41A3/38 , F41A3/56 , F41A19/47

6. 发明专利

JPH07174486A BOLT TYPE MACHINE GUN 失效
公开(公告)号：JPH07174486A
公开(公告)日：1995-07-14
申请号：JP35306193
申请日：1993-12-16
申请人： JAPAN STEEL WORKS LTD
发明人： YOSHIMATSU MORIYOSHI
IPC分类号： F41A3/38 , F41A5/24 , F41A7/02
摘要： PURPOSE:To keep a high precision of getting a target by a method wherein an operation cam for operating a lock lever is engaged with the lock lever while a cannon returns from its rear seat position to its starting position, an engagement with the lock lever is released just before the bolt part closes the and the seat returning operation of the gun is set to be stabilized. CONSTITUTION:After closing a lock claw 8, a reverse hook 17 is abutted against a reverse hook operating cam and depressed downwardly and then a stopper for the reverse hook is released from a striker 15. The striker 15 moves forward under a resilient force of a striker spring 16, projects from a front end of a bolt part 4 to repel an ammunition W and then the cannon 3 and the bolt 4 are returned back to their seats under a reaction caused by launching of the bullet. A stopping projection 9 of a lock lever passes through an operating cam 12 while the barrel 3 moves back to its seat, thereby a front part of the lock lever 7 is moved inwardly and the lock claw 8 of the lock lever is released. With such an arrangement as above, the connected state between the barrel 3 and the bolt part 4 is released. Accordingly, the seat returning operation of the barrel 3 can be stabilized and a high precision of getting a target can be maintained.

7. 发明专利

JPH0351999B2 失效
公开(公告)号：JPH0351999B2
公开(公告)日：1991-08-08
申请号：JP17469081
申请日：1981-11-02
申请人： FRANCHI SPA LUIGI
发明人： REONARUDO OTSUTORIINI
IPC分类号： F41A17/46 , F41A3/38

8. 发明专利

JP2630734B2 失效
公开(公告)号：JP2630734B2
公开(公告)日：1997-07-16
申请号：JP35306193
申请日：1993-12-16
申请人： NIPPON SEIKOSHO KK
发明人： YOSHIMATSU MORYOSHI
IPC分类号： F41A3/38 , F41A5/24 , F41A7/02

9. 发明专利

JPH06159992A PERCUSSION MECHANISM 失效
公开(公告)号：JPH06159992A
公开(公告)日：1994-06-07
申请号：JP35435392
申请日：1992-11-28
申请人： JAPAN TECH RES & DEV INST , JAPAN STEEL WORKS LTD
发明人： TSUMURA HIDEICHIRO , YOSHIMATSU MORIYOSHI
IPC分类号： F41A3/38 , F41A7/08 , F41A19/13 , F41A19/28
摘要： PURPOSE:To provide a mechanism wherein a bolt is composed so as to be simple and to be operable at high speed and a firing pin can also be advanced at high speed. CONSTITUTION:A bolt 4 has a firing pin 6 in a bolt body 5 for locking a barrel 2 at the front end side thereof, which pin can come in and out, and has a percussion lever 7 which is in contact with the rear end of the firing pin 6 and can be rocked forward. The firing pin 6 is advanced by the percussion lever 7 and ammunition W is percussed. In a chain-driving mechanism 9, an engaging catch 11 is pivotally joined to a pair of driving chain links 10 and a catch part 12 is provided so as to be vertically movable. The driving chain links 10 and the engaging catch 11 are guidably supported on a guide face 13, and the catch part 12 engages with the rear end of the bolt body 5 and advances the bolt body 5. First and second recessed parts 14, 15 are formed on the guide face 13, the catch part 12 is moved downward by the first recessed part 14 and the condition that the catch part 12 engages with the bolt body 5 is released. After that, the catch part 12 engages with the percussion lever 7 and rocks it forward. Furthermore, the catch part 12 is more moved downward by the second recessed part 15 and the condition that the catch part 12 engages with the percussion lever 7 is released.

10. 发明专利

JPS4928397B1 失效
公开(公告)号：JPS4928397B1
公开(公告)日：1974-07-25
申请号：JP2909570
申请日：1970-04-07
IPC分类号： F41A7/00 , F41A3/38 , F41A5/08 , F41A9/01 , F41A9/34 , F41A15/00 , F41A19/06

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