公开(公告)号：US4529071A

公开(公告)日：1985-07-16

申请号：US395810

申请日：1982-07-06

申请人： Richard Gagnon ,  Stanley Orszulak ,  Louis Pawloski ,  Michael L. Bodnar

发明人： Richard Gagnon ,  Stanley Orszulak ,  Louis Pawloski ,  Michael L. Bodnar

IPC分类号： B25B13/46 ,  B25B15/04

CPC分类号： B25B13/468 ,  B25B13/463 ,  B25B15/04

摘要： A ratcheting tool has a handle mounted on a ratchet housing. The ratchet housing has a blind axial bore formed therein. A driven shank has a rearward portion nested partially in the bore, and a ratchet is formed externally on the rearward portion of the shank. A cam is seated in the bore, rearwardly of the ratchet, and is pivotable substantially about the axis of the bore. The cam has a bore formed therein, and a thrust ball is seated in the cam bore axially between the bottom of the blind axial bore in the ratchet housing and the rearward portion of the shank, thereby accommodating axial thrust loads on the tool. A selector pin is carried by the cam and extends radially therefrom through an arcuate slot in the ratchet housing. A pair of L-shaped pawls are alternately actuated by the cam. The pawls have respective leg portions extending forwardly to engage the ratchet, thereby alternately keying the ratchet to the ratchet housing. The cam has a three-position detented connection with the ratchet housing, thereby establishing clockwise and counterclockwise ratchet drive positions and an intermediate locked position, respectively. A knurled spinner is rotatably piloted on the ratchet housing for optional manual use, and the spinner is suitably keyed to a intermediate portion of the shank.

摘要翻译： 棘轮工具具有安装在棘轮壳体上的手柄。 棘轮壳体具有形成在其中的盲轴向孔。 被驱动的柄部具有部分嵌套在孔中的向后部分，并且在柄部的后部部分上形成棘轮。 凸轮位于棘爪的后面的孔中，并且可以基本上围绕孔的轴线枢转。 凸轮具有形成在其中的孔，并且止推球轴向地位于棘轮壳体中的盲轴向孔的底部和柄的后部之间，从而在工具上容纳轴向推力负载。 选择器销由凸轮承载并且从其径向延伸穿过棘轮壳体中的弓形槽。 一对L形爪被凸轮交替地驱动。 棘爪具有向前延伸的相应的腿部部分以接合棘轮，从而将棘轮交替地键入棘轮壳体。 凸轮与棘轮壳体具有三位置的锁定连接，从而分别建立顺时针和逆时针棘轮驱动位置和中间锁定位置。 一个滚花旋转器被可旋转地引导到棘轮壳体上以供选择性手动使用，并且旋转器适当地键合到柄的中间部分。