Locking device to secure insertion part in receiving part has depth of annular groove in external surface less than thickness of spring ring

摘要

The locking device has the depth of the annular groove (28) in the outer surface (16) less than the thickness of the spring ring. The annular groove in the inner surface (12) is deep enough to take in the entire spring ring. The spring ring is forced into the groove in the external surface by its pre-tensioning force.