Sheet feeding apparatus having an expansible periphery

Details Sheet feeding apparatus having an expansible periphery Sheet feeding apparatus having an expansible periphery

B - Operations, Transporting

61

J

270/159

B61J 3/02 (2006.01) B41J 13/00 (2006.01) B41J 13/10 (2006.01)

Patent

CA 1188339

SHEET FEEDING APPARATUS HAVING AN EXPANSIBLE PERIPHERY Abstract of the Disclosure An apparatus having a track for guiding a sheet therealong and means for feeding a sheet along the track. The feeding means includes a rotatable member having a shaft mounted for rotation, with the rotatable member having a driving periphery extending into the track. The feeding means also includes a coupling unit and means for rotatably mounting the coupling unit at the track, with the coupling unit having an expansible periphery. Also provided is a means including an end- less coiled spring for selectively moving the expansible periphery between a first position in which the expan- sible periphery is uncoupled from the driving periphery and a second position in which the expansible periphery is expanded to form a driving coupling with the driving periphery of the rotatable member to feed a sheet posi- tioned therebetween along the track when the rotatable member is rotated.

418113

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