STRUCTURE OF MULTIPLE RING

摘要

PURPOSE:To provide a multiple ring which dispenses with complicated operation such as expanding a wire material composing the ring with a chuck and a tool in the work of inserting a ring-shaped matter into the multiple ring in the multiple ring produced by winding the wire material comprising a metal or the like spirally in a multiple way. CONSTITUTION:A multiple ring 5 for linking a ring-shaped matter 4a in a continuous ring is made up of a wire material wound closely in two turns or more spirally. A curved part 5d is provided at a proper point of the wire material to form a gap 6 between the curved part 5d and the adjacent wire material part.