(19)
(11) EP 0 376 308 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
18.09.1991 Bulletin 1991/38

(43) Date of publication A2:
04.07.1990 Bulletin 1990/27

(21) Application number: 89124076.4

(22) Date of filing: 28.12.1989
(51) International Patent Classification (IPC)5: B65H 3/06, B65H 7/02
(84) Designated Contracting States:
DE FR GB

(30) Priority: 28.12.1988 JP 332644/88
29.12.1988 JP 330984/88
29.12.1988 JP 330985/88

(71) Applicant: CANON KABUSHIKI KAISHA
Tokyo (JP)

(72) Inventors:
  • Sayama, Hideaki
    Yokohama-shi Kanagawa-ken (JP)
  • Sata, Junichi
    Kawasaki-shi Kanagawa-ken (JP)

(74) Representative: Tiedtke, Harro, Dipl.-Ing. et al
Patentanwaltsbüro Tiedtke-Bühling-Kinne & Partner Bavariaring 4
80336 München
80336 München (DE)


(56) References cited: : 
   
       


    (54) Sheet feeding apparatus


    (57) The present invention provides a sheet feeding apparatus comprising a stacking means (62) for stacking sheets; a feed means (16) for feeding the sheets stacked in the stacking means; a driving means (2) for generating rotational forces in a predetermined direction and in an opposite direction opposite to the predetermined direction; and a shifting means (14) for shifting the feed means to a position where the feed means contacts the sheet stacked in the stacking means by the rotational force directed toward the predetermined direction, and for separating the feed means from the sheet stacked in the stacking means by the rotational force directed toward the opposite direction. The shifting means includes a driving force transmitting means (7,8) for transmitting the rotational force directed toward the predetermined direction by a first predetermined value and for transmitting the rotational force directed toward the opposite direction by a second predetermined value, whereby the feed means is shifted by the rotational force transmitted by the driving force transmitting means.






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