- 专利标题： ELECTRIC POWER STEERING DEVICE AND SHAFT COUPLER USED THEREIN
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申请号： EP13751585.4申请日： 2013-02-04
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公开(公告)号： EP2818386B1公开(公告)日： 2018-11-21
- 发明人: YOSHIKAWA, Shinraku , SHIMIZU, Tetsurou , SHIMODA, Katsumi
- 申请人： KYB Corporation
- 申请人地址： World Trade Center Building 4-1, Hamamatsu-cho 2-chome Minato-ku Tokyo 105-6111 JP
- 专利权人： KYB Corporation
- 当前专利权人： KYB Corporation
- 当前专利权人地址： World Trade Center Building 4-1, Hamamatsu-cho 2-chome Minato-ku Tokyo 105-6111 JP
- 代理机构： Grünecker Patent- und Rechtsanwälte PartG mbB
- 优先权： JP2012039177 20120224
- 国际公布： WO2013125337 20130829
- 主分类号： B62D5/04
- IPC分类号： B62D5/04 ; F16D3/12 ; F16D3/68
摘要：
A shaft coupler that couples a worm shaft and an output shaft of an electric motor in an electric power steering device includes a joint on a motor side that is connected to the output shaft, a joint on a worm side that is connected to the worm shaft, and a coupling that is provided between the joints and that is for transmitting rotational torque of the electric motor to the worm shaft. The joint on the motor side and the joint on the worm side, each having a plurality of protrusion parts that extend in an axial direction, are arranged so that the protrusion parts are aligned alternately in a circumferential direction. The coupling is formed by a plurality of caps that are fitted to the protrusion parts of the joint on the motor side or the joint on the worm side.
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