Safety device for a camera with a winding motor

Details Safety device for a camera with a winding motor Safety device for a camera with a winding motor

1981-08-24

1983-08-23

Perkey, William B.

354205, G03B 966, G03B 1742

Patent

active

044000731

ABSTRACT:
A camera of the type having a winding motor is provided with a timer circuit which, after the lapse of a predetermined length of time, forcibly effects a supply of power to the winding motor when the shutter blades fail to travel in a normal way, and even when a signal corresponding to shutter blade travel completion is not obtained. The winding motor then resets the camera mechanisms which are arranged to perform various operations, such as shutter charging, mirror returning and film feeding, into their respective initial states. This eliminates the possibility of trouble resulting from such a malfunction of the camera that it becomes inoperative halfway through completion of photographing operation.

REFERENCES:
patent: 4313658 (1982-02-01), Sugiura et al.

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