| 摘要 |
PROBLEM TO BE SOLVED: To provide a jig capable of fixing and holding a hammer spanner with a sufficient strength and being easily and freely put on and taken off, so that a user hammering the hammer spanner may independently, safely, and easily operate a work.SOLUTION: A jig 1 for assisting in putting on and taking off bolt and nut comprises: a main body 2; a pair of sandwiching members 3a, 3b comprising a screw groove, being arranged at an inner section of the main body for sandwiching a bolt; elastic members 5a, 5b arranged between an inner surface of the main body and the sandwiching members; and a pair of pressing members 6a, 6b whose one end projects from the main body and presses the sandwiching members. When the pressing members are pressed from the projecting side, the pressing members push parts near both ends of the sandwiching members so as to open the sandwiching members. When the pressure onto the press members is released, the elastic member repels so as to close the sandwiching members. |
