LOCK FOR INTERNAL DOOR Russian patent published in 2011 - IPC E05B55/06 

FIELD: construction.

SUBSTANCE: lock for internal door comprises body, crossbar, the first working axis, the first pusher, facility of force transfer, the second working axis, the second pusher and fixing part. The first pusher is rotated by a lever handle or rotary handle. The first pusher interacts with facility of force transfer and diverts crossbar back into lock frame. Force transfer facility may rotate in position, in which force transfer from the first pusher is interrupted. The second pusher is rotated by a key or rotary handle. The second pusher provides for movement of fixing part between the first and second positions. In the first position the fixing part makes it possible to divert crossbar back. In the second position the fixing part serves to prevent diverting crossbar back.

EFFECT: simple design of lock, provides for possibility of simple fixation of crossbar.

8 cl, 6 dwg