发明授权
US5719712A Clicking device having a rotary member with teeth engageable with a
plurality of fixed projections
失效
具有可与多个固定突起接合的齿的旋转构件的点击装置
- 专利标题： Clicking device having a rotary member with teeth engageable with a plurality of fixed projections
- 专利标题（中）： 具有可与多个固定突起接合的齿的旋转构件的点击装置
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申请号： US735743申请日： 1996-10-23
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公开(公告)号： US5719712A公开(公告)日： 1998-02-17
- 发明人: Yasuaki Ishikawa
- 申请人： Yasuaki Ishikawa
- 申请人地址： JPX Tokyo
- 专利权人： Nikon Corporation
- 当前专利权人： Nikon Corporation
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX7-335084 19951222
- 主分类号： G02B23/18
- IPC分类号： G02B23/18 ; G02B7/02 ; G02B7/04
摘要：
There is provided a click device adapted to define a position by fitting a clicking projection in desired one of clicking grooves provided at a predetermined pitch. For defining the position with a unit less than a pitch of the clicking grooves, there are provided plural clicking projections, which are provided in respectively different positions within a pitch (or N pitches, wherein N is zero or a natural number) of the clicking grooves.
公开/授权文献
- US4661949A Circuit for conference telephony 公开/授权日：1987-04-28
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