| 摘要 |
PURPOSE: Provided is a coupling element of decoration chain, by which beautiful goods in a high quality can be produced without coupling mark. CONSTITUTION: A coupling element is composed of the followings: (a) a recess part having prescribed depth toward an inner part from the one end of the connecting element; (b); a protrusion pin consisting of the recess part and formed in prescribed length toward the front from the wall which becomes wider in prescribed width toward outer part from opposing direction; (c) coupling part formed on the other end of the coupling element; and (d) pin hole formed in penetrated state such that it can accommodate the protrusion pin along axis direction from center of the coupling part.
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