Patent ID: 7237997
Filing Date: 2007-07-03
Classification: B25B,B62D

Abstract:
1. A fixing tool mounted to an opponent member through screw tightening for fixing an object to be fixed against the opponent member upon pinioning, the fixing tool comprising: a male screw member screwed into a female screw portion formed at the opponent member side; and a pinion member abutting the object to be fixed for pinioning the object to be fixed in the opponent member direction, wherein the male screw member comprises a first axis portion formed with a male screw and a head portion having a non-circular contour formed at an upper end of the first axis portion, and wherein the pinion member comprises a through hole into which the first axis portion of the male screw portion is inserted, seat portions formed inside of the through hole at which the head portion of the male screw member is seated, and engaging portions pinching the head portion between the engaging portions and the seat portions in a freely detachable manner, each of the engaging portions being separated from the pinion member along three edge portions of each engaging portion by slits passing through a portion of the pinion member.