Breechblock for barrel weapons

A breechblock for a barrel weapon, having a breechblock head which is guided in a breechblock guide and, by means of a control element which can be moved to and fro in a straight line and has control ramps, can be brought out of a loading position into a locking position, which is parallel to and axially displaced with respect to the loading position, inside a breechblock bearing, which breechblock head has supporting surfaces, which are associated in a formlocking manner with the control ramps of the control element, and at least one locking boss, which corresponds with a recess in the breechblock, for the purpose of locking in the locking position, wherein the control ramps are parts of arcuate control slits (33, 34) of substantially flat guide rails (23, 24) which are arranged on both sides of the breechblock head (11) and with which there are associated as supporting surfaces control pegs (31, 32) connected to the breechblock head (11), and wherein there are provided on the breechblock head (11) locking bosses (12, 13, 14, 15) corresponding to recesses (18, 19, 21, 22) in the breechblock bearing (17), all of these in such an arrangement that when the guide rails (23, 24) are moved, the breechblock head (11) can, by way of its control pegs (31, 32), in the extent of the guide embodied by the control ramps of the control slits (33, 34), be brought in a form-locking manner out of the loading position into the locking position, which is at a distance and axially displaced, and be locked there;

• the facing surfaces (41, 42, 43, 44, 45, 46) of locking bosses (12 to 15) of the 35 breechblock head (11) and of recesses (18, 19, 21, 22) of the breechblock bearing (17) are inclined at an angle (α) with respect to a plane which intersects the bore of the barrel (26) at right angles, which angle facilitates the movement of the breechblock head into the loading position.