Invention Grant
- Patent Title: Assist mechanism and electric power steering device
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Application No.: US16957961Application Date: 2018-12-18
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Publication No.: US11702127B2Publication Date: 2023-07-18
- Inventor: Yasushi Honda
- Applicant: NSK LTD.
- Applicant Address: JP Tokyo
- Assignee: NSK LTD.
- Current Assignee: NSK LTD.
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP 17254056 2017.12.28 JP 18170011 2018.09.11
- International Application: PCT/JP2018/046512 2018.12.18
- International Announcement: WO2019/131315A 2019.07.04
- Date entered country: 2020-06-25
- Main IPC: B62D5/04
- IPC: B62D5/04 ; F16H1/16 ; F16D3/50 ; F16D3/72 ; F16D3/74 ; H02K5/24 ; H02K7/00 ; H02K7/116
Abstract:
An assist mechanism includes: an electric motor in which a rotor has a magnet and a stator has a winding; a shaft-shaped member in which a worm engaged with a worm wheel is formed; and a coupling that couples an output shaft of the electric motor and the shaft-shaped member to each other. The smallest rotation order among rotation orders of the electric motor and a rotation order of the worm are prime to each other.
Public/Granted literature
- US20200369315A1 ASSIST MECHANISM AND ELECTRIC POWER STEERING DEVICE Public/Granted day:2020-11-26
Information query
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