Sheet feeding or delivering – Feeding – Separators
Patent
1979-11-15
1981-05-19
Schacher, Richard A.
Sheet feeding or delivering
Feeding
Separators
271121, B65H 364
Patent
active
042680255
ABSTRACT:
In a sheet feeding apparatus comprising a sheet receptacle for placing sheets thereon, a vacuum plate which is disposed above the sheet receptacle and which has a sheet suction hole in bottom portion thereof directed to the sheet receptacle, a casing for covering the vacuum plate, a fan for bringing a space between the vacuum plate and the sheet receptacle to a negative pressure by sucking air from the casing, a sheet feed roller, which is disposed rotatably in the casing and a sheet transport portion which is exposed to the side of the sheet receptacle through the vacuum plate, a sheet separating roller which is rotatably disposed, downstream of the sheet feed roller, in the sheet transport path, and a drive apparatus for driving each of the rollers in the sheet feeding direction, an improvement is made in that the sheet separating roller is disposed in the casing and part of the peripheral surface of the sheet separating roller is exposed to the side of the sheet receptacle through the vacuum plate and in contact with a frictional member disposed below the sheet separating roller.
REFERENCES:
patent: 4018434 (1977-04-01), Mitchell
patent: 4113244 (1978-09-01), Ruenzi
IBM Technical Disclosure Bulletin, vol. 13, No. 9, p. 2567, Feb. 1971, "Vacuum Document Picker," C. H. Souba.
Ricoh & Company, Ltd.
Schacher Richard A,.
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