发明授权
- 专利标题： Ratcheting screwdriver
- 专利标题（中）： 棘轮螺丝刀
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申请号： US914739申请日： 1986-10-02
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公开(公告)号： US4777852A公开(公告)日： 1988-10-18
- 发明人: Timm R. Herman , Donald J. Caldwell , Allan J. Bliemeister , Eric T. Gustafson , Mark S. Bakula
- 申请人： Timm R. Herman , Donald J. Caldwell , Allan J. Bliemeister , Eric T. Gustafson , Mark S. Bakula
- 申请人地址： WI Kenosha
- 专利权人： Snap-on Tools Corporation
- 当前专利权人： Snap-on Tools Corporation
- 当前专利权人地址： WI Kenosha
- 主分类号： B25B15/04
- IPC分类号： B25B15/04 ; B25G1/08
摘要：
The ratcheting screwdriver comprises a handle having a bore and a keyway substantially tangent thereto. In the bore is a gear and in the keyway are a pair of pawls which are movable individually into and out of engagement with the gear. An actuator is provided at the forward end of the handle to move these pawls. A cap operates the actuator.
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