Clasp for e.g. watch strap, has fixing unit for fixing position of sliding part to variable position in structure, and control unit formed of cover, toothed wheels, axles, ratchet wheel and rack and allowing movement of sliding part

摘要

The clasp has a structure (2) provided with an attachment unit for attaching ends of a flexible link and an adjusting unit for adjusting total useful length of the flexible link. Another end of the link is attached to a sliding part (16). The adjusting unit includes a fixing unit formed of U shaped part (17) and rack (22) for fixing a position of the sliding part to a variable position in the structure. A control unit formed of cover, toothed wheels (10, 11), axles (12), ratchet wheel and rack (23) allows movement of the sliding part.