作者: Davida Levy
DOI:
关键词: Ring (chemistry) 、 Closure (topology) 、 Mechanical engineering 、 Computer science
摘要: A jewelry closure includes a magnetic and mechanical which is safety feature, preventing the from being opened inadvertently. plate-like member attached to one of members engages complementarily shaped portion other when secured provide second for jewelry. The combined may be used close chains. also disposed on hinged ring. ring passing through ends decorative chain as chain. wearing finger particularly useful if joints are swollen. Other uses include adaptation charm closing or adding