Sheet feeding or delivering – Feeding – Separators
Patent
1991-03-27
1992-11-03
Bollinger, David H.
Sheet feeding or delivering
Feeding
Separators
271116, B65H 306
Patent
active
051601281
ABSTRACT:
The present invention relates to a clutch device for an automatic paper feeder which transfers rotary driving force from a drive shaft provided in a printer body to a feeding roller through proper timing control. The present invention includes a clutch gear which has an internal gear formed on its inner surface and an external gear formed on its outer surface, the external gear receiving rotary driving force transferred from a drive shaft of a printer body; a sun gear which is located coaxially with the clutch gear to transfer rotary driving force to a feeding roller shaft supporting the feeding roller and to receive rotary braking force of a braking mechanism; a planetary gear which is engaged with both the internal gear of the clutch gear and the sun gear; and a stopper which inhibits the planetary gear from revolving in a predetermined direction during the reverse rotation of the drive shaft of the printer body but does not inhibit the planetary gear from revolving in the opposite direction to the predetermined direction during the normal rotation of the drive shaft. Accordingly, the present invention can rotate the feeding roller in the feeding direction simultaneously with the reverse rotation of the drive shaft of the printer body and stop the feeding roller rotation simultaneously with the normal rotation of the drive shaft.
REFERENCES:
patent: 4754961 (1988-07-01), Tokuda et al.
Bollinger David H.
Daiwa Seiko Inc.
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