DRIVER WITH FASTENING MEMBER NIPPING DEVICE AND ASSEMBLY METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To improve the work efficiency of an assembly work by a method wherein a fastening member for a screw and a nut is held without exercising an influence on an apparatus by magnetism. SOLUTION: This drive comprises a protrusion piece 5 formed at the tip part of the shaft 2 of a driver 1; a contact support body 7 inserted in a shaft and movably situated and having one surface separably making contact with the protrusion piece 5; a pressurizing support body 8 inserted in the shaft 2 and movably situated; two nipping bodies 10 situated in a state to extend through both sides of the two support bodies 7 and 8 and locked at the two support bodies 7 and 8; and a spring 9 situated between the two support bodies 7 and 8 and compressed through lock of the nipping bodies 10. The nipping bodies 10 are spread through pressurizing on the pressurizing support body 8 and contracted through the release force of the spring due to release of the pressurization.