Sheet feeding apparatus and image forming apparatus

Patent metadata

Field	Value
Publication number	US-2020354177-A1
Application number	US-202016864347-A
Country	US
Kind code	A1
Filing date	May 1, 2020
Priority date	May 10, 2019
Publication date	Nov 12, 2020
Grant date	—

Abstract

A sheet feeding apparatus includes a sheet supporting portion, a rotary feeding member, a rotary separation member, a support member configured to support a rotation shaft of the rotary separation member, a swing shaft configured to support the support member, a frame member including a first support portion configured to fix a first end portion of the swing shaft and a second support portion configured to movably support a second end portion of the swing shaft, and an adjustment mechanism including a long hole formed in the second support portion and a fixing member configured to fix the second end portion of the swing shaft to the frame member. The second end portion of the swing shaft can be fixed at a plurality of positions to the second support portion with the fixing member.

First claim

What is claimed is:

1 . A sheet feeding apparatus comprising:
a sheet supporting portion configured to support a sheet; a rotary feeding member configured to feed the sheet supported on the sheet supporting portion; a rotary separation member configured to abut on the rotary feeding member and form a separation nip in which the sheet is conveyed with separating from another sheet; a support member configured to support a rotation shaft of the rotary separation member; a swing shaft configured to support the support member with the support member being swingable; an urging member configured to urge the rotary separation member toward the rotary feeding member; a frame member comprising a first support portion configured to fix a first end portion of the swing shaft and a second support portion configured to movably support a second end portion of the swing shaft; and an adjustment mechanism comprising a long hole formed in the second support portion and a fixing member configured to fix the second end portion of the swing shaft to the frame member, wherein the second end portion of the swing shaft can be fixed at a plurality of positions to the second support portion with the fixing member.

2 . The sheet feeding apparatus according to claim 1 , wherein the adjustment mechanism can fix the swing shaft at the plurality of the positions where angles between a first imaginary line and a second imaginary line are different, the first imaginary line being an imaginary line connecting a rotation center of the rotary feeding member and a rotation center of the rotary separation member in a cross-section perpendicular to the swing shaft at the separation nip, the second imaginary line being an imaginary line connecting the rotation center of the rotary separation member and an axial center of the swing shaft in the cross-section perpendicular to the swing shaft at the separation nip.

3 . The sheet feeding apparatus according to claim 2 , wherein the adjustment mechanism can fix the swing shaft to the frame member at the plurality of the positions where the second imaginary line is inclined to different angles.

4 . The sheet feeding apparatus according to claim 2 , wherein the adjustment mechanism can fix the swing shaft to the frame member at the plurality of the positions where the first imaginary line is inclined to different angles.

5 . The sheet feeding apparatus according to claim 1 , wherein the adjustment mechanism can fix the swing shaft to the frame member at the plurality of the positions which are different in a vertical direction.

6 . The sheet feeding apparatus according to claim 1 , wherein, in a case of a crosswise direction being a direction orthogonal to a vertical direction and an axial direction of the swing shaft, the adjustment mechanism can fix the swing shaft to the frame member at the plurality of the positions which are different in the crosswise direction.

7 . An image forming apparatus comprising:
the sheet feeding apparatus according to claim 1 ; and an image forming unit to form an image on the sheet fed by the sheet feeding apparatus.

Assignees

• Canon Kk

Inventors

• Nakagawa Hiroyuki

Classifications

• B65H3/5261

  Retainers of the roller type, e.g. rollers · CPC title

• B65H2511/21

  Angle · CPC title

• B65H2801/06

  Office-type machines, e.g. photocopiers · CPC title

• B65H2404/152

  Arrangement of roller on a movable frame · CPC title

• B65H2515/34

  Pressure, e.g. fluid pressure · CPC title