Anti-theft device for motor vehicle, has cam cooperating with main and spare counter-cams under normal and degraded operations, respectively, where cam profile has zone to enable respective counter-cam movements along zone length

摘要

The device has a bolt for locking a steering column of a vehicle and a transformation unit to change rotational movement of a rotor (14) into a translatory movement of the bolt. A cam (28) cooperates with main (30) and spare counter-cams (32) under normal and degraded operations, respectively. The profile of the cam has a zone (40) to enable respective movements of the counter-cams along a length of the zone.