Patent ID: 6276256
Filing Date: 2001-08-21
Classification: F41A

Abstract:
A breechblock (10) for a barrel weapon, comprisinga breech block bearing (17) designed to accept a barrel (26), the breech block bearing having a bore on one end and being movable engage with a breechblock head (11) and a pair of guide rails (23, 24) on the other end;the pair of guide rails being disposed on either side of the breechblock head for providing movement from the sides of the breech block head (11) inside the breech block bearing (17) from a loading position into a locking position along a straight line, the locking position being parallel to and axially displaced with respect to the loading position inside the a breechblock bearing (17);the breechblock head (11) includes control pegs (31,32) associated in a form-locking manner with arcuate control slits (33,34) disposed in the pair of guide rails, and locking bosses (12, 13, 14, 15) corresponding to recesses (18, 19, 21, 22) in the breechblock bearing (17); the recesses (18, 19, 21, 22) having surfaces (41, 42) and wherein the locking bosses having surfaces (43, 44, 45, 46) and wherein the surfaces of the recesses (18, 19, 21, 22) are inclined each at an angle (.alpha.) with respect to a plane which intersects the bore of the barrel at right angles, which angle facilitates the movement of the breechblock head into the loading position.