发明授权
- 专利标题: Power steering apparatus
- 专利标题(中): 动力转向装置
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申请号: US12729865申请日: 2010-03-23
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公开(公告)号: US08443929B2公开(公告)日: 2013-05-21
- 发明人: Tatsuro Suzuki , Kohtaro Shiino , Yusuke Fukuda , Atsushi Yoshitake
- 申请人: Tatsuro Suzuki , Kohtaro Shiino , Yusuke Fukuda , Atsushi Yoshitake
- 申请人地址: JP Ibaraki
- 专利权人: Hitachi Automotive Systems, Ltd.
- 当前专利权人: Hitachi Automotive Systems, Ltd.
- 当前专利权人地址: JP Ibaraki
- 代理机构: Antonelli, Terry, Stout & Kraus, LLP.
- 优先权: JP2009-072257 20090324
- 主分类号: B62D5/04
- IPC分类号: B62D5/04
摘要:
A power steering apparatus includes a worm wheel mounted on the steering shaft, a worm shaft engaged with the worm wheel, a gear housing having a wheel accommodating portion to accommodate the worm wheel and a shaft accommodating portion to accommodate the worm shaft, a bearing mounted on the worm shaft to rotatably support the worm shaft, a holder disposed in the shaft accommodating portion and having a bearing retaining portion to retain the bearing and a resilient element disposed in the shaft accommodating portion and having a resilient body portion formed with a curvature. The resilient body portion is so structured as to become deformed in such a manner as to increase or decrease in diameter when the bearing shifts in a direction that moves the worm shaft away from the worm wheel and bias the bearing in a direction that urges the worm wheel toward the worm wheel.
公开/授权文献
- US20100243367A1 POWER STEERING APPARATUS 公开/授权日:2010-09-30
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