| 摘要 |
<p>The present invention provides a reversible wrench which comprises a first gear face disc (15) having a single side profile teeth (151) on one of its flat sides and a square central hole (152), and rotatably mounted in one end of the wrench body; a second gear face disc (17) having a symmetrical single side profile teeth (174) on one of its flat sides and a central hole (171) which is concentrically disposed on the first disc and meshed with the first disc by the depressing of an undulated spring washer (18) or compression spring which is axially bounded between the discs and the wrench body; a driving stud (16) which is slidably received through the square hole of the first disc, the hole of the second disc, and the spring washer, with at least one end thereof projecting from one of the opposite sides of the wrench body; in which the second gear face disc being non-rotatably connected to the wrench body.</p> |
