发明名称 |
Position control device for use in a camera |
摘要 |
A position control device which comprises a ratch wheel adapted to rotate in interlock with motion of an object to be positioned, a rotation detecting unit adapted to detect an amount of rotation of the ratch wheel, a combination solenoid provided with a pawl and adapted to be driven in a direction of bringing the pawl into engagement with the ratch wheel and in a direction of separating the pawl from the ratch wheel, and a combination solenoid control unit adapted to actuate the aforementioned combination solenoid in such a manner as to bring the pawl into engagement with the ratch wheel to set the object at a prescribed position when the aforementioned rotation detecting unit detects that the amount of the rotation of the ratch wheel has reached a prescribed level.
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申请公布号 |
US4835558(A) |
申请公布日期 |
1989.05.30 |
申请号 |
US19870123352 |
申请日期 |
1987.11.20 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
ARAKI, KUNIHIKO;KOBAYASHI, MIKIO;TERUI, HIROSHI;NISHIDA, TOHRU |
分类号 |
G03B7/10;G03B9/07 |
主分类号 |
G03B7/10 |
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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