| 摘要 |
<p>This invention is about the screw driver tool, that is consist of the follows; the screw driver (40) that has main body part(l?) and rotate axis (41); guide stick (50); handle (70), main body (l l); drive device (21); cover tube valve (18) above; a fixing circle board (19); drive gear (22); drive wheel (24); the 1st ratchet (25); return spring (26); device that moves back and forth (32); the 1st spring (35); the 2° spring (36); and convert a projecting part. Therefore, without turning the tools using the wrist, by a simple action of pulling and loosing the control lever (60) you can tighten the screws easily, when the direction of rotating to clockwise and anti-clockwise is possible and rotate the screw driver in anti-clockwise and loosen the tightened screws, and thus, you can tighten and loosen the screws very fast and easily.</p> |
