Safety lock, has fixed stopping surface within stator to define position of mobile abutment which tends to get away from its unlocked position under effect of vibrations or jolts and when there is no excitation of motor

摘要

The lock has a fixed stopping surface (31a) within a stator (7) for a mobile abutment (23). The abutment (23) is arranged within a cavity (22) having larger volume than a swept volume by the abutment during its rotation. A body (33) floating in the cavity adjusts the position of abutment. The abutment tends to get away from its unlocked position under the effect of vibrations or jolts when there is no motor excitation. The lock has a rotor (4), a stator (7), and a mobile abutment (23) which, in a position oppose it-self with a shift of a block organ (15) to avoid the turning of rotor (4) within the stator (7), and which can be turned by an electric motor in other position where the blocking organ is free to quit its locking position, if an authorized key has been introduced in the canal (6) of the rotor.