发明名称 |
Lens-fitted photographic film unit with film winding motor |
摘要 |
A lens-fitted photographic film unit is provided with a motor for rotating a spool to wind up photographic film one frame after each exposure. The motor is supplied with a single cell which may be commonly used for charging a flash unit. The rotational movement of the motor is transmitted to the spool through a speed-reduction gear mechanism which reduces the rotational speed at ratios between 100:1 and 280:1. The motor and the gear mechanism are removably mounted in a frame as a motor unit, and the motor unit is removably attached to a main body of the film unit beside a take-up chamber. Forwardly convex contacting portions are exposed to a front portion of the motor unit. The cell is mounted between contact plates having forwardly convex contacting portions. A motor drive switch for controlling start and stop of the motor also has forwardly convex contacting portions exposed to a front side thereof. These contacting portions are pressed against conductive layers formed on the inner surface of a front cover of the film unit so as to provide a film winding circuit.
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申请公布号 |
US5565945(A) |
申请公布日期 |
1996.10.15 |
申请号 |
US19950412532 |
申请日期 |
1995.03.15 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
TOBISE, MANABU;YOKOO, HIROKAZU;TAKAGI, JUNICHI;TASAKA, HISASHI |
分类号 |
G03B17/42;G03B19/04;(IPC1-7):G03B1/18 |
主分类号 |
G03B17/42 |
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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