| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve a wrench capable of easily tightening a nut located within a narrow recess 3 by using a power tool. <P>SOLUTION: In a front end part of a wrench body 6, a central part in the thickness direction is cut with a constant thickness to form an intermediate cavity 10, and a cam 11 in the slidable state is arranged in the intermediate cavity 10. Socket holding holes 7, 12 opened toward the front end side are bored on the body 6 and the cam 11, and a socket 8 having a hexagon hole 27 and an opening 23 is rotatably held. A one-way clutch is formed between the cam 11 and the socket 8. A crank shaft 14 including a crank arm 15 formed at a tip thereof is penetrated through the wrench body 6 from a base end part to the intermediate cavity 10. The crank arm 15 is engaged with a base end part of the cam 11. The cam 11 is rocked by a constant angle by rotation of the crank shaft 14 rotatively driven by the power tool, so as to rotate the socket 8. <P>COPYRIGHT: (C)2012,JPO&INPIT |
