Camera apparatus for reducing torque load on motorized drive dur

Details Camera apparatus for reducing torque load on motorized drive dur Camera apparatus for reducing torque load on motorized drive dur

1987-03-16

1988-02-09

Gellner, Michael L.

3541731, G03B 112, G03B 1742

Patent

active

047244518

ABSTRACT:
Normally in a camera, when a release button is manually depressed, a shutter is actuated to expose a section of film. Then, a motorized drive is actuated to re-set the shutter and advance the film for the next exposure. Conversely, when a cartridge of fresh film is loaded in the camera, the release button is manually depressed to actuate the motorized drive to position the film for the first exposure. However, according to the invention, the shutter is prevented from being actuated in order to avoid the need for the motorized drive to have to re-set the shutter. This allows the motorized drive to dedicate its full torque to overcoming the break-away load needed to advance the film from the cartridge for the first time.

REFERENCES:
patent: 3932878 (1976-01-01), Kurei
patent: 4086603 (1978-04-01), Kozuki et al.
patent: 4516843 (1985-05-01), Ohmura
patent: 4671636 (1987-06-01), Malloy-Desormeaux

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