Browse Prior Art Database

PAPER FEEDING DEVICE WITH LATERAL PRE-SEPARATION

IP.com Disclosure Number: IPCOM000023387D
Original Publication Date: 1977-Aug-31
Included in the Prior Art Database: 2004-Mar-30
Document File: 2 page(s) / 319K

Publishing Venue

Xerox Disclosure Journal

Abstract

In a sheet feeding apparatus for feeding individual copy sheets from a stack of copy sheets, the stack is fanned laterally of the sheet feeding direction, to provide sheet pre-separation, by cyclically pivoting the side guides rela-tive to the stack tray base by, for example, a cyclic cam driven from the sheet feeding drive.

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

PAPER FEEDING DEVICE WITH
LATERAL PRE- SEPARATION
Osamu Matsumoto
Takashi Ohmori

Proposed Classification
U.S. Cl. 271/18
mt. Ci. B65h 3/00

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Volume 2 Number 4 July/August 1977 63

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[This page contains 1 picture or other non-text object]

Page 2 of 2

PAPER FEEDING DEVICE WITH LATERAL PRE-SEPARATION (Cont'd)

In a sheet feeding apparatus for feeding individual copy
sheets from a stack of copy sheets, the stack is fanned
laterally of the sheet feeding direction, to provide sheet
pre-separation, by cyclically pivoting the side guides rela-
tive to the stack tray base by, for example, a cyclic cam
driven from the sheet feeding drive.

Referring to Figures 1 and 2, there is shown a paper tray 1 for
an electrophotographic copying machine for receiving copy
sheets 2 in a conventional stack orientation. The stack of
copy sheets 2 are in contact with two side plates or guides 3
pivotally mounted at the base of both sides of the stack 2. In
Figure 1 the left side of the tray 1 is shown broken away.
However, it will be appreciated that both side plates 3 and
their drive mechanisms may be the same, or commonly driven, as
illustrated in Figure 2.

Engaging each of the side guides 3 are operating rods 4
cyclically driven by cam surface 5a of a cam 5 of a shape to
provide the movement shown in Figures 2(a) - 2(c). The cam 5
is driven by cam shaft 5b connected through gears 6 and...