Automatic film rewinding device

Details Automatic film rewinding device Automatic film rewinding device

1983-11-22

1985-09-24

Christian, Leonard D.

Winding, tensioning, or guiding

Reeling device

Fishing rod reel

242191, 352173, G03B 104, G11B 1532

Patent

active

045428654

ABSTRACT:
In an apparatus such as a camera which automatically performs film winding and rewinding by means of a motor, an automatic rewinding circuit is arranged to detect interruption of a winding action by means of a timer circuit which is set at a length of time longer than a predetermined length of winding time. Upon detection of the interruption, the automatic rewinding circuit automatically shifts the winding action to a rewinding action. The apparatus is also provided with a memory storage which mechanically memorizes the operating state of the automatic rewinding circuit or with a forced rewinding device which permits a rewinding operation irrespective of the operating state of the automatic rewinding circuit.

REFERENCES:
patent: 2912899 (1959-11-01), Wangerin et al.
patent: 3995291 (1976-11-01), Momose
patent: 4079398 (1978-03-01), Ichiyanagi
patent: 4134657 (1979-01-01), Nomura
patent: 4400074 (1983-08-01), Akiyama et al.

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