EP 0275822 B1 19900919 - EXCHANGEABLE JEWELLERY FASTENER
Title (en)
EXCHANGEABLE JEWELLERY FASTENER
Publication
Application
Priority
CH 501486 A 19861217
Abstract (en)
[origin: JPS6420807A] PURPOSE: To prevent a clasp from slipping out of a chain even when the clasp suddenly opens by arranging two projections turned to a central opening on the inside of the snap connecting side and the hinge side in an upper side part of an accessory clasp, and forming a tail end ring of a necklace in a specific dimension. CONSTITUTION: An accessory clasp 1 is divided into an upper side part 2 and a lower side part 3, and one side is connected by a hinger 4, and the opposite side is connected by a snap connector 5, mutually. Projections 6 and 6' turned to a central opening are arranged on the inside of the snap connecting side and the hinge side in an upper side part 2 of the clasp 1. A tail end ring 7 of a necklace is also formed in a dimension so that its inside diameter D becomes larger than a thickness of the clasp 1 and smaller than the sum of a thickness of the clasp 1 and a height of the projections 6 and 6', and the tail end ring 7 is made arrangeable on the upper side part 2 or is made releasable from there by going over the projections only by placing it in an opening position of the clasp 1. As a result, even if the clasp suddenly opens at installing time, the clasp is prevented from slipping out of a chain.
IPC 1-7
IPC 8 full level
A44C 5/20 (2006.01); A44C 11/02 (2006.01); A44C 25/00 (2006.01)
CPC (source: EP US)
A44C 5/2033 (2013.01 - EP US); A44C 9/0046 (2013.01 - EP US); Y10T 24/45534 (2015.01 - EP US)
Designated contracting state (EPC)
AT CH DE ES FR GB IT LI SE
DOCDB simple family (publication)
EP 0275822 A1 19880727; EP 0275822 B1 19900919; AT E56595 T1 19901015; CA 1275576 C 19901030; CH 671147 A5 19890815; DE 3765109 D1 19901025; ES 2017760 B3 19910301; JP 2550114 B2 19961106; JP S6420807 A 19890124; US 4815180 A 19890328
DOCDB simple family (application)
EP 87810679 A 19871120; AT 87810679 T 19871120; CA 554145 A 19871211; CH 501486 A 19861217; DE 3765109 T 19871120; ES 87810679 T 19871120; JP 31309287 A 19871210; US 13102887 A 19871210