Multispeed drive mechanism

Details Multispeed drive mechanism Multispeed drive mechanism

1997-06-16

1998-11-17

Lee, S.

Electrophotography

Image formation

Exposure

G03G 1530

Patent

active

058390367

ABSTRACT:
The multispeed drive mechanism is a clutchless drive mechanism including a rotatable input shaft and a plurality of input gears of different diameters mounted on the input shaft. A plurality of drive gears of different diameters are rotatably mounted on a support member and each engage one of the plurality of input gears. A driven member is driven at different speeds for the same speed of the input shaft by pivoting the support member about the input shaft and using different input gear/drive gear combinations to provide different gear ratios. The multiple speed drive mechanism is particularly useful for driving the movable platen of a copying apparatus at different speeds for reduction and enlargement copying.

REFERENCES:
patent: 4542983 (1985-09-01), Zambelli et al.
patent: 4796053 (1989-01-01), Nakamura et al.
patent: 4891665 (1990-01-01), Mizutani
patent: 5233389 (1993-08-01), Deguchi et al.
patent: 5267002 (1993-11-01), Maitani et al.

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