Invention Grant
- Patent Title: Electric power steering system
- Patent Title (中): 电动助力转向系统
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Application No.: US12861164Application Date: 2010-08-23
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Publication No.: US08397859B2Publication Date: 2013-03-19
- Inventor: Toshihiro Asakura , Takashi Hara , Masayoshi Asakura
- Applicant: Toshihiro Asakura , Takashi Hara , Masayoshi Asakura
- Applicant Address: JP Osaka
- Assignee: JTEKT Corporation
- Current Assignee: JTEKT Corporation
- Current Assignee Address: JP Osaka
- Agency: Oliff & Berridge, PLC
- Priority: JP2009-199786 20090831; JP2009-199787 20090831; JP2009-278195 20091208
- Main IPC: B62D5/04
- IPC: B62D5/04
Abstract:
In an electric power steering system, multiple cutouts (45) are formed in a flange portion (36) formed on an axial end portion (23a) of a ball screw nut (23) of a ball screw device that drives a rack shaft. In addition, a motor shaft (6) has a thin-plate portion (44) that extends on the radially outer side of the ball screw nut (23). When the thin-plate portion (44) that extends from the motor shaft (6) is swaged into the cutouts (45) that serve as engagement recesses that have side walls in the circumferential direction, the rotation of the ball screw nut (23) relative to the motor shaft (6) is restricted.
Public/Granted literature
- US20110048838A1 ELECTRIC POWER STEERING SYSTEM Public/Granted day:2011-03-03
Information query
IPC分类:
