Patent ID: 8479633

Claim:
A drive operably connected to a breech so that the breech is moveable in an axial direction with respect to a weapon barrel of a weapon, wherein the drive comprises: (a) a crank driven via a rotation shaft connected to a motor; (b) a connecting rod arranged so that a rear end of the connecting rod is moveable in a groove formed in the crank, and a front end of the connecting rod is connected to the breech, or to a driver of the breech, via a pinion, wherein the crank and the connecting rod are connected to one another via a shaft that integrated in the groove; (c) at least one sliding means arranged at the rear end of the connecting rod, wherein the at least one sliding means runs, guided by a first control cam, along the first control cam, wherein the first control cam is an intrinsically closed cam structure and has a plurality of defined areas defining a movement profile for the breech, wherein the driver of the breech or a part of the breech, has a tooth system that engages the pinion, wherein the pinion is integrated at a front of the connecting rod so as to rotate on the connecting rod and, as a result of rotation of the pinion, the breech is moved via the connecting rod during rotation of the crank.