Mini electrical lock with emergency opening has drive cog attached to mini electric motor shaft cooperating with toothed rack for movement of locking bolt

摘要

The locking bolt has an eccentric bore (19) corresponding in length to the locking bolt displacement path and containing a toothed rack (2) cooperating with a drive cog (3) attached to the motor shaft. The electric motor is enclosed by a protective sleeve (11) fixed to the housing via screws (11A), the motor shaft (1) projecting through an opening in the housing, a coupling for the toothed rack provided by a rubber ring (4) passed around a tensioning screw (5) and the motor shaft, with emergency opening of the lock by mechanical movement of the toothed rack. The lock has a housing (7) containing a locking bolt (8) and a mini electric motor (10), coupled to a control block, for movement of the locking bolt to the left and right within a guide bore (8A).