发明授权
US06959676B2 Sheet metal rocker arm, manufacturing method thereof, cam follower with said rocker arm, and assembling method thereof
失效
钣金摇臂，其制造方法，具有所述摇臂的凸轮从动件及其组装方法
- 专利标题： Sheet metal rocker arm, manufacturing method thereof, cam follower with said rocker arm, and assembling method thereof
- 专利标题（中）： 钣金摇臂，其制造方法，具有所述摇臂的凸轮从动件及其组装方法
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申请号： US10702047申请日： 2003-11-06
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公开(公告)号： US06959676B2公开(公告)日： 2005-11-01
- 发明人: Kiyoshi Okubo , Shoichi Abe , Satoshi Kadokawa , Hiroshi Iwasa
- 申请人： Kiyoshi Okubo , Shoichi Abe , Satoshi Kadokawa , Hiroshi Iwasa
- 申请人地址： JP Tokyo
- 专利权人： NSK Ltd.
- 当前专利权人： NSK Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Crowell & Moring LLP
- 优先权： JP10-078556 19980312; JP10-224702 19980807; JP10-224703 19980807; JP10-225661 19980810; JP10-226183 19980810
- 主分类号： F01L1/18
- IPC分类号： F01L1/18
摘要：
A sheet metal rocker arm manufactured by the steps of punching one metal plate to form a blank having a predetermined contour and through holes, and subjecting this blank to a bending work based on a press work to form a pair of side walls parallel to each other and a connecting portion for connecting the both ends of the side walls in the width direction thereof. This rocker arm is also provided with at least a pair of though holes formed at positions which are aligned with each other on the both side walls and at least one engagement portion provided in a part of the connecting portion. The thickness of at least one engagement portion, is formed to be greater than the thickness of the both side walls.
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