FIREARM WITH FOLDING BUTTSTOCK

摘要

A firearm includes a receiver, barrel coupled to the receiver, and buttstock. An openable/closeable hinge assembly comprising front and rear hinge elements pivotably mounts the buttstock to the receiver. A latch mechanism carried by the hinge assembly includes a latch pin having latch and lock members on opposing ends. The pin is both slidable and rotatable in the hinge assembly. When the buttstock is in an unfolded position in axial alignment with the barrel axis, the latch member engages a latch recess on a first lateral side of the hinge assembly to latch the buttstock in position. The buttstock may be pivoted laterally outwards about the hinge assembly to a folded position offset from the barrel centerline. Rotating the latch member engages the lock member with a lock recess on the hinge assembly to lock the buttstock in the folded position.

主权项

1. A firearm with folding buttstock comprising:
a receiver; a barrel coupled to a front end of the receiver, the barrel defining a longitudinal axis and an axially extending bore forming a projectile pathway; an elongated buttstock defining a stock axis; a hinge assembly pivotably coupling the buttstock to the receiver, the hinge assembly comprising a fixed front hinge element coupled to the receiver, a movable rear hinge element coupled to the buttstock, and a hinge pivotably coupling the front and rear hinge elements together; the buttstock pivotably movable between an inline position, and an offset position in which the stock axis is laterally offset from the longitudinal axis; a latch pin rotatably and slideably carried transversely by the hinge assembly; a latching mechanism on a first lateral side of the hinge assembly comprising a latch member on a first end of the latch pin engageable with a latch recess on the first lateral side, the latching mechanism operable to maintain the buttstock in the inline position when the latch member engages the latch recess; a locking mechanism on a second lateral side of the hinge assembly comprising a lock member on a second end of the latch pin engaging a lock recess on the second lateral side, the locking member operable to maintain the buttstock in the offset position when the lock member engages the lock recess; and a latch spring biasing the latch member in an inward direction and the lock member in an outward direction with respect to the hinge assembly; wherein rotating the latch member in opposing directions selectively engages the lock member with or disengages the lock member from the lock recess when the buttstock is in the offset position.