| 摘要 |
PROBLEM TO BE SOLVED: To provide a safe fastener which can be easily repeatedly fixed, positioned, moved, attached and detached by using soft and extensible shafts, and which is softly fastened or prevents damage with respect to even animals and plant.SOLUTION: This fastener has such an attachment structure that the highly elastic shafts are inserted into fixing holes larger than a shaft diameter. By using such a change that the shafts are thinned by extending the ends of the shafts in the longitudinal direction even after attachment, reattachment is achieved by moving a fixing position in a returning direction while keeping the shafts thinner than the minimum hole dimensions of the holes. |
