发明授权
- 专利标题： Shutter device having eccentric pin for adjusting urging force
- 专利标题（中）： 具有用于调节推动力的偏心销的快门装置
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申请号： US991824申请日： 1997-12-17
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公开(公告)号： US5915141A公开(公告)日： 1999-06-22
- 发明人: Akihiko Ebe
- 申请人： Akihiko Ebe
- 申请人地址： JPX Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX8-350424 19961227
- 主分类号： G03B9/08
- IPC分类号： G03B9/08 ; G03B9/14
摘要：
A shutter device includes a base member, a plurality of shutter blades supported by the base member and each arranged to turn in opposite directions, a shutter blade driving lever having an engaging part which engages the plurality of shutter blades and arranged to turn so as to cause each of the plurality of shutter blades to turn in the opposite directions, an eccentric pin which is rotatable, and a spring having one end thereof connected to the shutter blade driving lever and the other end thereof connected to the eccentric pin, and arranged to drive the plurality of shutter blades by urging the shutter blade driving lever in one direction, wherein an urging force of the spring is adjustable by rotating the eccentric pin.