Camera automatic film winding device

Details Camera automatic film winding device Camera automatic film winding device

1979-07-12

1981-03-17

Wintercorn, Richard A.

354204, G03B 118

Patent

active

042563941

ABSTRACT:
An automatic film winding device in a camera in which a camera winding coupling is coupled to a motor drive side through a power transmission mechanism having a cam and a follower. The device comprises a cam system having a first cam for maintaining a motor drive circuit energized and a second cam for a film winding operation in said camera. After a release operation in the camera the motor drive circuit is energized in association with restoration of a camera release button or a shutter. The follower is displaced to the first cam by the relative motion of said first cam and follower caused by the further rotation of said motor, to maintain the motor drive circuit energized. After the completion of winding operation in the camera, the second cam is disengaged from the follower by the relative motion of the second cam and follower to deenergize the motor drive circuit.

REFERENCES:
patent: 3895389 (1975-07-01), Arai

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