Electrical film rewinding device

Details Electrical film rewinding device Electrical film rewinding device

1975-06-02

1977-03-15

O'Connor, Edna M.

354173, G03B 100

Patent

active

040127559

ABSTRACT:
An electric motor within a film rewinding device is connected by a gear reduction unit to an axially shiftable clutch to a rewind drive shaft which shaft projects axially to achieve clutching and to effect drive connection with a film support reel within a camera. A rotatable rewind operating lever within the rewind device is normally maintained in drive shaft de-clutch and reel disengagement position but is rotatable to effect clutching and drive engagement with the reel after moving through a position in which a driven element engages the film take up release member within the camera to release the film for rewind. The rewind operating lever further rotates to a position closing mutually open switch contacts controlling energization of the shaft drive motor.

REFERENCES:
patent: 3598033 (1971-08-01), Sasaki
patent: 3735683 (1973-05-01), Umeda

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