发明公开
EP2468457A3 Power tool having a gear speed reducing mechanism which is free of backlash
审中-公开
具有无间隙的齿轮减速机构的电动工具
- 专利标题： Power tool having a gear speed reducing mechanism which is free of backlash
- 专利标题（中）： 具有无间隙的齿轮减速机构的电动工具
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申请号： EP11195474.9申请日： 2011-12-23
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公开(公告)号： EP2468457A3公开(公告)日： 2015-02-11
- 发明人: Ikuta, Hiroki , Hanai, Takamasa , Ito, Akihiro
- 申请人： Makita Corporation
- 申请人地址： 3-11-8, Sumiyoshi-cho Anjo, Aichi 446-8502 JP
- 专利权人： Makita Corporation
- 当前专利权人： Makita Corporation
- 当前专利权人地址： 3-11-8, Sumiyoshi-cho Anjo, Aichi 446-8502 JP
- 代理机构： Kramer Barske Schmidtchen Patentanwälte PartG mbB
- 优先权： JP2010290451 20101227
- 主分类号： B25F5/00
- IPC分类号： B25F5/00 ; F16H13/08 ; F16H13/10
摘要：
A power tool having a gear speed reducing mechanism which is free of backlash is provided.
The power tool has a planetary gear speed reducing mechanism 131. The planetary gear speed reducing mechanism 131 has a driving-side member 135 that is rotationally driven by a prime mover 111, a driven-side member 139 which is rotatably and coaxially disposed with the driving-side member 135 and to which a tool bit 119 is coupled, and an intervening member 137 which is disposed between the driving-side member 135 and the driven-side member 139. The intervening member 137 is configured as a planetary member and at least caused to rotate by frictional force acting on its contact surface in contact with the driving-side member 135 when the driving-side member is rotationally driven, so that torque of the driving-side member 135 is transmitted to the driven-side member 139 at reduced speed.
The power tool has a planetary gear speed reducing mechanism 131. The planetary gear speed reducing mechanism 131 has a driving-side member 135 that is rotationally driven by a prime mover 111, a driven-side member 139 which is rotatably and coaxially disposed with the driving-side member 135 and to which a tool bit 119 is coupled, and an intervening member 137 which is disposed between the driving-side member 135 and the driven-side member 139. The intervening member 137 is configured as a planetary member and at least caused to rotate by frictional force acting on its contact surface in contact with the driving-side member 135 when the driving-side member is rotationally driven, so that torque of the driving-side member 135 is transmitted to the driven-side member 139 at reduced speed.
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