Motor drive device for camera

Details Motor drive device for camera Motor drive device for camera

1985-03-12

1987-03-03

Perkey, William B.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242191, 226 40, 74336R, G03B 100, B65H 23198, F16H 542

Patent

active

046471693

ABSTRACT:
A motor drive device for an operation of a camera such as film winding, etc. with a motor is arranged to detect the rotating speed of the motor and to shift, according to the rotating speed thus detected, the reduction ratio of a driving force transmitting gear train of a drive mechanism for transmitting the driving force of the motor to a load, so that the load can be adequately driven.

REFERENCES:
patent: 2981121 (1961-04-01), Peras
patent: 3882516 (1975-05-01), Ogiso et al.
patent: 4272173 (1981-06-01), Iwashita et al.
patent: 4494842 (1985-01-01), Kimura et al.

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