Invention Grant
- Patent Title: Electric power steering device and shaft coupler used therefor
- Patent Title (中): 电动助力转向装置和轴联轴器
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Application No.: US14380393Application Date: 2013-02-04
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Publication No.: US09434405B2Publication Date: 2016-09-06
- Inventor: Shinraku Yoshikawa , Tetsurou Shimizu , Katsumi Shimoda
- Applicant: KAYABA INDUSTRY CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: KYB Corporation
- Current Assignee: KYB Corporation
- Current Assignee Address: JP Tokyo
- Agency: Hauptman Ham, LLP
- Priority: JP2012-039177 20120224
- International Application: PCT/JP2013/052502 WO 20130204
- International Announcement: WO2013/125337 WO 20130829
- Main IPC: B62D5/04
- IPC: B62D5/04 ; F16D3/68 ; F16D3/12
Abstract:
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.
Public/Granted literature
- US20150041241A1 ELECTRIC POWER STEERING DEVICE AND SHAFT COUPLER USED THEREFOR Public/Granted day:2015-02-12
Information query
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