DRIVE AND QUICK STOP FOR A WEAPON WITH PREFERABLY LINEAR BREECH OR AMMUNITION FEED

摘要

The invention relates to a drive having a quick stop mechanism for a breech (3) or breech carrier which can be axially adjusted relative to a weapon barrel (1), said drive comprising at least one motor (2) or the like, a chain (5) on which at least two engaging cams (7) are mounted, the chain (6) being preferably arranged below the breech (3) and being guided around at least two sprocket wheels (5). A slide (8) is mounted in a guide at the bottom of the breech (3)/breech carrier so as to be displaceable at a right angle to the direction of fire, a groove (9) extending over the entire width thereof. The respective engaging cam (7) entrains the breech (3) in a forward motion in relation to the direction of fire or in a reverse motion once the shot is fired. The engaging cam (7) transporting the breech (3) forwards is displaced out from the groove (9) and is moved backwards without the breech (3) on the other weapon side, thereby allowing rest periods of the breech (3) in the forward end position. Once the shot is fired, the slide (8) is displaced to the other weapon side whereas it remains in the position in which it was put down by the engaging cam (7) when no shot is fired so that no further engaging cam (7) can entrain the breech (3) backwards.