发明申请
- 专利标题: Ratchet tool having smooth engaging member
- 专利标题(中): 棘轮工具具有光滑的接合构件
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申请号: US11215160申请日: 2005-08-30
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公开(公告)号: US20070044594A1公开(公告)日: 2007-03-01
- 发明人: Hsin-Nien Chen
- 申请人: Hsin-Nien Chen
- 主分类号: B25B13/46
- IPC分类号: B25B13/46
摘要:
A ratchet tool includes a tool member rotatably engaged into a cartridge and having a gear, two pawls slidably received in the cartridge and each having one or more teeth biased to engage with the gear of the tool member, and a control ferrule may control the engagement of the pawls with the gear of the tool member, and the pawls each include a ball, a roller, or a rounded or rotary or smooth member engaged between the control ferrule and the pawls, for forming a reduced contact area between the control ferrule and the smooth member, and for allowing the pawls to be effectively moved relative to the cartridge, and to be disengaged from or to be engaged with the gear of the tool member by the control ferrule.
公开/授权文献
- US07225708B2 Ratchet tool having smooth engaging member 公开/授权日:2007-06-05
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