Pivot lock for necklace etc. is bayonet-shaped, and has main part with connection part hinged to it at end opposite to insertion end, for adaptation to different necklace diameters, and for meulti-strand necklaces

摘要

The lock (1) is a bayonet lock with main part (2) and connection part (3','') with holder passage (3d) and insertion end (3a) having a bayonet head, fastened to it. The connection part is hinged to the main part at the end away from the insertion end, and decreases in size towards the connection point. The connection part is formed as a bayonet lock sleeve. The lock is suitable for a multi-strand necklace, and has several connection parts with partially overlapping pivot areas, for self-adjustment to necklace diameter, strands, etc.