| 摘要 |
PROBLEM TO BE SOLVED: To provide a band fastener preventing a band from being excessively fastened.SOLUTION: A band fastener 1 includes: a rotational shaft member 6 fixing a band B and capable of rotating; fastening side ratchet units S(412, 51) allowing rotation of the rotational shaft member 6 to a side of fastening the band B; and return prevention side ratchet units M(212, 31) preventing rotation of the rotational shaft member 6 to a side on which the band B returns. The fastening side ratchet units S(412, 51), when a predetermined load is applied, impairs a function of allowing rotation of the rotation shaft member 6 to the side of fastening the band B.SELECTED DRAWING: Figure 3 |
