Camera

Details Camera Camera

1997-04-08

1998-12-29

Gray, David M.

Photography

With film drive

Mechanical detail

396418, G03B 1724

Patent

active

058549528

ABSTRACT:
A camera capable of accomplishing with certainty a switching operation between a winding drive system and a rewinding drive system and of contributing to its size reduction. The winding drive system employs a film loading motor 48 and a clutch mechanism in the drive system to establish and cut off engagement of the drive system in accordance with rotating directions of a the film loading motor (48). Further, a differential reduction section is placed within a revolution area of a planetary gear of the clutch mechanism. The clutch mechanism is composed of first and second planetary clutch mechanisms, the first planetary clutch mechanism releasing the transfer of a driving force of the film loading motor within the winding drive system by the rotation of the motor in a first direction and the second planetary clutch mechanism releasing the transfer of a driving force of the motor within the rewinding drive system by the rotation of the motor in a second direction. Also provided in the camera is a reduction mechanism which performs differential reduction of a planetary gear of the first planetary clutch mechanism during revolution of the planetary gear.

REFERENCES:
patent: 5456419 (1995-10-01), Ezawa
patent: 5512970 (1996-04-01), Kamoda et al.

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