Closure device for self loading gun, has closure head and rotary valve movable relative to each other, where closure head comprises contact surfaces, which face each other and are inclined to rotational axis

摘要

The device (10) has a closure head movably arranged in a closure housing, and guiding closure lugs that co-act with barrel lugs of a barrel (5) of a firearm (1). The closure head is guided along a control rail that comprises a release-controlling cam (14). The closure head and a rotary valve are movable relative to each other, where the rotary valve acts on the closure head and controls a locking operation. The closure head comprises contact surfaces, which face each other and are inclined to a rotational axis. An independent claim is also included for a method for locking and unlocking a firearm.