发明名称 |
Device for indicating the advancing of film in a camera being taken up or rewound |
摘要 |
A camera in which a roll of film is employed is provided with a device for indicating the advancing of film being taken up or rewound. A friction member is rotatably mounted on the film take-up spool shaft but does not rotate with the shaft unless film is wound around the friction member. The friction member is provided with a cam portion which is engaged by one end of an indication lever. The other end of the indication lever is provided with a striped or other pattern which is viewable through a window in the camera body. Alternatively, a portion of the friction member could be directly viewed through the window.
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申请公布号 |
US4134657(A) |
申请公布日期 |
1979.01.16 |
申请号 |
US19770830286 |
申请日期 |
1977.09.02 |
申请人 |
ASAHI KOGAKU KOGYO KABUSHIKI KAISHA |
发明人 |
NOMURA, KATSUHIKO |
分类号 |
G03B1/06;G03B1/40;G03B1/60;G03B17/18;(IPC1-7):G03B1/00 |
主分类号 |
G03B1/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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