发明授权
- 专利标题： Yoke of planetary gear-type starter, manufacturing apparatus therefor and manufacturing method thereof
- 专利标题（中）： 行星齿轮式起动机的轭，其制造装置及其制造方法
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申请号： US796387申请日： 1997-02-04
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公开(公告)号： US5931037A公开(公告)日： 1999-08-03
- 发明人: Yoshiharu Yamada , Kyoichi Okamoto , Yoshihiro Morimoto , Akira Morishita
- 申请人： Yoshiharu Yamada , Kyoichi Okamoto , Yoshihiro Morimoto , Akira Morishita
- 申请人地址： JPX Tokyo
- 专利权人： Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人： Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX8-171348 19960701
- 主分类号： H02K1/12
- IPC分类号： H02K1/12 ; B21D22/16 ; B21D53/28 ; H02K7/10 ; H02K15/02
摘要：
A manufacturing method of a cylindrical yoke including a bottom portion to which an opening 12a is formed to journal the starter output shaft of a planetary gear-type starter incorporating a planetary gear reducer, and an inner peripheral gear portion formed to the vicinity of the bottom portion, the yoke functioning as the field magnet of a motor in the planetary gear-type starter. The yoke is formed by subjecting a metal disk 10 to cold spinning. As a result the inner peripheral gear portion of the yoke and a thin portion can be easily formed and miniaturization, reduction in weight and cost reduction are realized.
公开/授权文献
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