发明申请
- 专利标题: Electric power steering system
- 专利标题(中): 电动助力转向系统
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申请号: US10573587申请日: 2004-09-24
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公开(公告)号: US20070137379A1公开(公告)日: 2007-06-21
- 发明人: Hiroaki Sanji , Masaharu Igarashi , Tomoyuki Tsunoda
- 申请人: Hiroaki Sanji , Masaharu Igarashi , Tomoyuki Tsunoda
- 优先权: JP2003-333840 20030925
- 国际申请: PCT/JP04/14413 WO 20040924
- 主分类号: B62D1/18
- IPC分类号: B62D1/18
摘要:
An electric power steering system comprising an upper bracket, a steering column, a steering shaft provided rotatably within the steering column, a tilt mechanism comprising a tilt clamp which tightly fastens the steering column between tightening plate portions of the upper bracket and a tilt pivot which oscillates the steering column, an electric assist unit provided at a lower end of the steering column, and a lower bracket fixed to the vehicle body at an opposite side of the electric assist unit to the steering column to rotatably support a pivot shaft of the tile pivot. A housing of the electric assist unit is brought into engagement with a pivot shaft of the tilt pivot in such a manner as to be allowed to move loosely, so that the steering column is allowed to oscillate about the pivot shaft, and a column rotation restricting portion is provided between the lower bracket and the housing.