IP Library › Granted Patent US 12668444
Granted Patent B2
US 12668444 · App. 19/045,669 · Granted Jun 30, 2026

Sheet conveying device and image forming apparatus

Inventors: Yuya Shimohora (Osaka, JP); Takehiro Sato (Osaka, JP); Kaori Katsumoto (Osaka, JP)
Assignee: KYOCERA Document Solutions Inc.
B65H5/062B65H9/006B65H9/008B65H2404/1316B65H2404/1321B65H2404/1341B65H2404/143B65H2404/1451B65H2404/17B65H2801/06
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Quick Facts
Patent No.
US 12668444
App. No.
19/045,669
Granted
Jun 30, 2026
Kind
B2
Abstract

A sheet conveying device includes a first roller, a second roller, and a pressing portion. The pressing portion includes a pressing member contacting the first roller from its side opposite from the second roller and a pressing urging member urging the pressing member toward the second roller. The first roller has a step portion formed in an outer circumferential part of it all over its circumference. The step portion has an outer diameter smaller than the outer diameter of a contact region with the second roller and is contacted by the pressing member.

Claims (22)

1 . A sheet conveying device comprising:

a first roller and a second roller that constitute a pair of conveying rollers rotatably disposed opposite each to convey a sheet; and

at least one pressing portion that presses the first roller toward the second roller at a position inward of opposite end parts of the pair of conveying rollers along an axial direction,

wherein

the pressing portion includes:

a pressing member that contacts the first roller from a side thereof opposite from the second roller;

a pressing urging member that urges the pressing member toward the second roller, and

the first roller has a step portion that is formed in an outer circumferential part of the first roller all over a circumference thereof, the step portion having an outer diameter smaller than an outer diameter of a contact region with the second roller, the step portion being contacted by the pressing member,

the first roller is rotatably supported on a body frame of an apparatus body, and

the sheet conveying device further comprises:

a bush member that is supported on the body frame so as to be movable along a radial direction of the first roller, the bush member rotatably supporting the second roller; and

a counter-urging member that urges the bush member in such a direction that the second roller comes closer to the first roller.

2 . The sheet conveying device according to claim 1 , wherein

the pressing portion is disposed at a middle of the pair of conveying rollers along the axial direction.

3 . The sheet conveying device according to claim 1 , wherein

with the pressing urging member the pressing portion urges the pressing member upstream of a center axis of the second roller in a sheet conveyance direction.

4 . The sheet conveying device according to claim 1 , wherein

the first roller is a driving roller that rotates by being fed with a driving force, and

the second roller is a driven roller that rotates by following the first roller by staying in contact with the first roller.

5 . An image forming apparatus comprising the sheet conveying device according to claim 1 .

6 . The image forming apparatus according to claim 5 , wherein

the pair of conveying rollers is a pair of registration rollers that conveys the sheet while correcting skewed conveyance of the sheet.