Automatic winding up device for a camera

Details Automatic winding up device for a camera Automatic winding up device for a camera

1978-01-12

1980-01-08

Gellner, Michael L.

354238, G03B 112, G03B 964

Patent

active

041825624

ABSTRACT:
An automatic winding up device for a camera, in which a device for detecting the winding up completion signal supplied from the camera body as well as a delay device starting to operate by the detection of the winding up completion signal by the detecting device are disclosed. These devices operate in such a manner that the current supply to the winding up motor is maintained during the operation of the delay device. This acts to overload the motor for a certain time determined by the delay device after the completion of the winding up operation and overloads the winding up mechanism of the camera body. The current supply to the motor is interrupted after lapse of a time determined by the delay device so as to stop the motor. The winding up member is driven in the reversed direction by the reaction of the overload exercised on the winding up mechanism so that the load exercised on the camera is released at the termination of the winding up operation.

REFERENCES:
patent: 3688669 (1972-09-01), Ogiso et al.
patent: 3946409 (1976-03-01), Toyoda
patent: 3994003 (1976-11-01), Iwashita et al.

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