Cylinder lock with a blocking device

摘要

Blocking mechanism for selectively blocking or releasing a core (2) movably arranged in a housing (1) comprises a locking bolt (13) guided in the movement region of the core, a locking spring (12) for pre-tensioning the locking bolt in the direction blocking the core, an actuator (11) for holding the locking bolt, and an electronic control device for controlling the actuator. The actuator is formed at least partly as a piezo bending element or a magnetostrictive element. king the movement of the core. The actuator is fixed in the housing with its end facing away from the locking bolt. The actuator is designed for holding the locking bolt by clamping in the position releasing the core and for releasing the movement of the locking bolt in the position bloc