发明授权
- 专利标题： Coil spring
- 专利标题（中）： 线圈弹簧
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申请号： US13388247申请日： 2010-04-26
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公开(公告)号： US08876095B2公开(公告)日： 2014-11-04
- 发明人: Nobuharu Kato , Hirotaka Yamada , Jinetsu Kano , Takeshi Yabushita
- 申请人： Nobuharu Kato , Hirotaka Yamada , Jinetsu Kano , Takeshi Yabushita
- 申请人地址： JP Kanagawa
- 专利权人： NHK Spring Co., Ltd.
- 当前专利权人： NHK Spring Co., Ltd.
- 当前专利权人地址： JP Kanagawa
- 代理机构： Jordan and Hamburg LLP
- 优先权： JP2009-179621 20090731
- 国际申请： PCT/JP2010/002994 WO 20100426
- 国际公布： WO2011/013278 WO 20110203
- 主分类号： F16F1/06
- IPC分类号： F16F1/06 ; F16F1/04
摘要：
A coil spring has a spring wire that is wound in a coil shape and whose sectional outer basic shape is circular and flat faces are formed between coil inner and outer diameter sections of a sectional outer shape of the spring wire, wherein a flattening T/W of the sectional outer shape with the flat faces in the coil axis direction is set so that a stress ratio is equal to or lower than a stress ratio of a coil spring whose sectional outer shape is circular.
公开/授权文献
- US20120193848A1 COIL SPRING 公开/授权日：2012-08-02