Sheet feeding or delivering – Feeding – Separators
Patent
1992-07-15
1994-12-20
Bollinger, David H.
Sheet feeding or delivering
Feeding
Separators
271125, B65H 352
Patent
active
053740483
ABSTRACT:
A device for transferring paper sheets one by one successively in separation, having, as viewed in FIG. 1, a paper sheet feed roller 1 adapted to be driven for rotation, and a press member 3 disposed to oppose a cylindrical outer surface of the paper sheet feed roller along a generatrix thereof so as to define a nip region 2 therebetween for nipping the paper sheet therein, wherein a friction coefficient between the outer surface of the paper sheet feed roller and the upper surface of the paper sheet contacting therewith is higher than a friction coefficient between the upper surface and the lower surface of the paper sheet, and the press member is shiftable relative to the paper sheet feed roller so as thereby to change a mean friction coefficient between a band surface area thereof opposing the paper sheet feed roller in the nip region and the lower surface of the paper sheet contacting therewith within a range lower than the friction coefficient between the outer surface of the paper sheet feed roller and the upper surface of the paper sheet but higher than the friction coefficient between the upper and lower surfaces of the paper sheet.
REFERENCES:
patent: 4313598 (1982-02-01), DiBlasio
patent: 4529187 (1985-07-01), Einem et al.
patent: 4858907 (1989-08-01), Eisner et al.
patent: 4978115 (1990-12-01), Sato et al.
patent: 4991831 (1991-02-01), Green
patent: 5102115 (1992-04-01), Takamizawa et al.
patent: 5104113 (1992-04-01), Kameyama et al.
patent: 5273269 (1993-12-01), Iwanaga
Bollinger David H.
Riso Kagaku Corporation
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