LOCK Russian patent published in 2003 - IPC

FIELD: locksmith's work. SUBSTANCE: the lock has a body, locking bolt installed in it, cylinder mechanism with a drum, in which a core is installed, handle fixed to the drum, member moving the locking bolt, the drum is made in the form of a shaft with handles fixed on its ends, it can freely rotate about its axis in the open or closed state of the lock, a hole is made in its central part perpendicularly to the axis, where a pin is installed in the transverse direction for movement, and the member moving the locking bolt is installed in the central part of the drum for rotation and can be engaged with the pin only at opening or closing of the lock. A washer is installed in the body determining the drum position, which is coaxial with the drum and connected to it in the direction of rotation. EFFECT: enhanced reliability of locking. 2 dwg