Patent attributes
The male member comprises a base to which a string member can be attached, a pair of legs that project from the base, and an engaging portion that projects from a top surface and a bottom surface of a distal end of each of the pair of legs. The female member comprises: a hollow female member body that comprises an inserting opening into which the male member is inserted and an accommodating space that accommodates the pair of legs of the male member inserted through the inserting opening; an engaged portion provided to an interior of the accommodating space of the female member body with which the engaging portion of the male member is engaged; and a guiding receptacle provided to the interior of the accommodating space to guide the engaging portion to the engaged portion. A guide that abuts to the engaging portion of the male member to guide the engaging portion to the guiding receptacle is provided to the inserting opening of the female member.