| 摘要 |
A firing mechanism for a fast shooting pistol is disclosed, and the mechanism includes a hammer 1, a plunger 4, a hammer cam 8, an elastically sear 23, and a firing pin push rod 15. The hammer 1 is provided with a first engaging step 1' and a second engaging step 1'' at the lower front and rear portions thereof respectively, and is also provided with an actuation slot 2 and a recess 3 in the interior thereof. The plunger 4 is eleastically installed within the recess 3 by means of a spring 5. The hammer cam 8 is installed within the actuation slot 2 by means of a shaft and pushed by the plunger 4 on its circumferential surface. The elastically sear 23 is elastically supported by a spring 21 in front of the hammer cam 8. The hammer push rod 15 is elastically installed under the hammer 1 by means of a compressed spring 14. The advantage of the mechanism is that spring 14 may be held in the compressed "ready" position by the cam 8 while the hammer 1 is positioned in the forward position. In this way, the force required to pull the trigger, and thereby retract the hammer, is only that of the plunger 4 and the spring 5 moving from the recess 10 to the recess 11 on the cam 8.
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