Key operating device for lock of door leaf, has actuator coupled to rotating assembly when key is turned by motor for releasing/locking lock, and coupling device controlling coupling/decoupling of actuator to/from assembly

摘要

The device has a housing with a mounting plate that is mounted on key cylinders and clamping bolts. An actuator is coupled to the assembly only when a key is turned by an electric motor, for releasing or locking a lock. A coupling device (19) has a gear (16), and controls coupling of an actuator (17) to a rotating assembly in an activated condition and decoupling of it from the assembly in a deactivated condition.