Fire control system for firearms

摘要

A striker-fired firearm in one embodiment includes a trigger assembly including a trigger and trigger bar supported by a frame, a rotatable sear operable to hold a spring-biased striker in a cocked ready-to-fire position, and a rotatable sear blocker operable to prevent rotation of the sear. The trigger bar is operably linked to the sear and blocker such that pulling the trigger rotates the sear and blocker. When the blocker is in a blocking position, the blocker engages and prevents movement of the sear and release of the striker in the absence of a trigger pull. When the blocker is in a non-blocking position effectuated by pulling the trigger, the blocker disengages the sear which rotates and releases the striker to fire the firearm.

主权项

1. A firearm with striker firing mechanism comprising:
a longitudinal axis; a frame; a reciprocating slide disposed on the frame; a barrel disposed at least partially in the slide and defining a chamber for holding a cartridge; a spring-biased striker movable in a linear path between a rearward cocked position and forward firing position for striking a chambered cartridge, the striker including a catch protrusion; a trigger mechanism including a trigger bar coupled to a trigger movably disposed in the frame, the trigger bar movable in rearward and forward axial directions via operation of the trigger; a sear rotatably disposed in the frame and operably linked to the trigger bar, the sear movable via operation of the trigger to selectively engage the catch protrusion to hold the striker in the rearward cocked position and to disengage the catch protrusion to release the striker for striking the chambered cartridge; and a blocker rotatably disposed in the frame and operably linked to the trigger bar, the blocker movable into and out of engagement with the sear via operation of the trigger; wherein the blocker is rotatable between a blocking position engaged with the sear which prevents movement of the sear to release the striker from the rearward cocked position and a non-blocking position disengaged from the sear which is then movable to release the striker for firing the firearm; wherein the trigger bar is configured so that pulling the trigger moves both the sear and the blocker; and wherein the sear and blocker are mounted about separate parallel pivot axes.