Firearms |
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| 申请号 | US3731417D | 申请日 | 1971-05-12 | 公开(公告)号 | US3731417A | 公开(公告)日 | 1973-05-08 |
| 申请人 | HECKLER & KOCH GMBH; | 发明人 | MOLLER T; KETTERER D; | ||||
| 摘要 | An automatic hand firearm includes a unit comprising a trigger box and a hand grip which are in mutual engagement in the firearm casing by hook and pin engagement means, such engagement being maintained by a projecting part of the shoulder support, the latter being held by means of a detachable pin and on removal the shoulder support releases the unit which can then be withdrawn with a rearward disengagement movement. | ||||||
| 权利要求 | 1. Automatic hand firearm comprising a unit having a trigger box and a grip member releasably secured to the under side of a firearm casing and connected to the firearm casing by means of a fastening pin, means for releasably securing the trigger box at its upper edge by hook means at the forward and rear ends of the trigger box, facing in each case in the firing direction, said hook means engaging catch means fitted to the firearm casing and being held in their engaged positions by a nose part of a shoulder support and in which the trigger box is further provided in the region of its upper edge with bearing surfaces which rest against bearing surfaces of the fiRearm casing, which determine both the spacing of the unit from a breech track, and also their position in the direction of the breech track. 2. Hand firearm according to claim 1, characterized in that the unit rests against the under edges of the side walls of the firearm casing by the upper edge of the side walls of the trigger box thereof. 3. Hand firearm according to claim 1, characterized in that one catch means consists of a ledge provided on the firearm casing against which the front wall of the trigger box bears. 4. Hand firearm according to claim 2, characterized in that the trigger box is releasably secured in a grip member and the hook means are fitted to the trigger box. 5. Hand firearm according to claim 4, characterized in that the shoulder support has a nose part which holds the trigger box against the catch means of the firearm casing. 6. Hand firearm according to claim 1, characterized in that the hook means located at the forward end of the unit is formed by a projection at the upper edge of the front wall of the trigger box and this projection engages in a corresponding recess in the firearm casing. 7. Hand firearm according to claim 1, characterized in that the hook located at the rear end of the unit is formed by a portion of the rear wall of the trigger box which is extended upwardly above the side walls and bent forwardly and fits over a pin connecting the walls of the firearm casing. |
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