Lock

A lock comprising:

• a lock plate;
• a combination lock carried on the plate and having setting wheels with respective coupling hubs;
• a secondary lock also carried on the plate;
• a stator on the lock plate on which the combination lock and the secondary lock are rotatable, the lock plate carrying the combination lock and the secondary lock being able to freely rotate 360° relative to the stator in a locked state of the lock;
• and,
• means for, when the lock is opened by the secondary lock, uncoupling the setting wheels from the respective coupling hubs of the combination lock associated with the setting wheels and axially movable relative to the setting wheels and thereby resetting the setting wheels to an opening code of the combination lock from an opening code set by the secondary lock at the time of the opening of the lock to a specified factory code;
• respective heart-shaped setting cams on the setting wheels of the combination lock;
• respective heart-shaped setting cams on the coupling hubs of the combination lock, each setting cam having on a respective setting wheel side and each setting cam on a respective coupling hub side having a respective adjusting lug of a shifting lever, the lock plate formed by a housing and a lower end plate;
• and
• a spring biasing the lock plate from a position at a spacing from the stator toward the stator when recesses formed on the housing are aligned with lugs formed on the stator.