Patent ID: 8117957
Filing Date: 2012-02-21
Classification: F41A

Abstract:
1. A breech device of a hand firearm, comprising: a firearm casing including a cross stop; a trigger mechanism including a trigger lever pivotally coupled to the firearm casing and having a stop detent; a carrier slidably arranged within the firearm casing, the carrier including a rear portion having a vertical well, a side wall including a limiting slot therethrough, and a locking arm disposed in the vertical well, the locking arm pivotally coupled to the carrier with a bearing pin and including a free end that engages the cross stop; a breech block engaging the carrier, the breech block including a transfer slot along a top surface, a side wall having a through slot, and a slidable firing pin with a striker; a tensioning element including an oval driving part slidably engaged with the limiting slot of the carrier and a projecting part including a forward-directed nose adapted to engage the stop detent of the trigger mechanism; at least one follower pin coupled to the tensioning element and engaging the firing pin, the at least one follower pin being adapted to slide in the through slot of the breech block; and a tensioning pin slidably engaging the carrier and including an end part extending into the transfer slot of the breech block.