Lock clasp for jewellry pieces has detent catch engaging in recess inside clasp housing and having shoulders to engage under projections on insides of housing arms for security

摘要

The lock clasp housing (6) has a continuous base (8) with U-shaped recess (10) defined by two arms (12',12'') and interacting with a detent catch (14) which has in its side edge areas two shoulders which face the insides of the arms. The shoulders engage under projections (18',18'') on the insides of the arms during closing and are held between the projections and base. Detent means (22) acting out across the longitudinal direction of the lock snap into the corresponding recesses (16',16'') on the insides of the arms.