| 摘要 |
PROBLEM TO BE SOLVED: To prevent loosening of a connecting part between a bolt and a nut, and to prevent a nut from being loosened by a mischief. SOLUTION: In this return locking cap having a cylindrical cap body mounted on the nut 3 fastening a material to be fixed to cover the side part 3a of the nut 3, the cap body is provided with a locking claw 12 extending from the outer peripheral wall 11 to the radial inside, and with the cap body mounted on the nut 3, the locking claw 12 is deformed by the head of the nut 3, so that the locking claw 12 is engaged with the screw part of the bolt 2 projected from the head of the nut 3. COPYRIGHT: (C)2006,JPO&NCIPI
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