Winding up device of a camera

Details Winding up device of a camera Winding up device of a camera

1977-09-19

1979-11-27

Hix, L. T.

192 clutches and power-stop control

Elements

Wear compensators

354206, 354213, 192 26, G03B 118, G03B 1742, F16D 1106

Patent

active

041758455

ABSTRACT:
In a winding up device of a camera settable to an operative position at a phase of exposure completion and to an inoperative position at a phase of winding up completion, there is provided an electromagnetic clutch in transmitting means for transmitting driving force from a drive source of the winding up device. Electrical supply of power to the drive source or winding up motor and the electromagnetic clutch are controlled through a detecting means for detecting the phase of winding up completion to effect rapid changeover between the connection and separation of the driving force of the winding up motor to and from a winding member of the camera, thereby a continuous winding up operation is performed with ease. Power is cut off to the winding up motor switching device and to an electromagnetic clutch switching means to make the film winding up mechanism powerless before a device for stopping the wind up action begins to work.

REFERENCES:
patent: Re29505 (1977-12-01), Aizawa et al.
patent: 3021512 (1962-02-01), Welsh et al.
patent: 4015198 (1977-03-01), Iwashita et al.
patent: 4052126 (1977-10-01), Freudenschuss

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