US 9,067,746 B2Granted

Image reading apparatus and conveyance apparatus

AssigneeBrother Kogyo Kabushiki Kaisha

InventorAtsuo Hirose

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Abstract

An image reading apparatus including an wall disposed on a first side of the image reading apparatus in a width direction orthogonal to a conveyance direction of a sheet is provided. The wall extends in a direction orthogonal to the width direction. The image reading apparatus further includes a first driven roller disposed on a second side in the width direction relative to the wall; a first driving roller opposed to the first driven roller; a first driven shaft inserted into the first driven roller and urged against the first driving roller; a second driven roller disposed on the second side relative to the first driven roller; a second driving roller opposed to the second driven roller; a second driven shaft inserted into the second driven roller and urged against the second driving roller; and a reader unit configured to read the image on the sheet.

Claims22

Dependent claims

An image reading apparatus comprising:

a wall disposed on a first side of the image reading apparatus in a width direction, the wall extending in a direction orthogonal to the width direction, the width direction being orthogonal to a conveyance direction of a sheet on which an image to be read by the image reading apparatus is formed;
a first driven roller disposed on a second side of the image reading apparatus in the width direction relative to the wall, the second side being opposite to the first side;
a first driving roller opposed to the first driven roller;
a first driven shaft inserted into the first driven roller and urged against the first driving roller;
a second driven roller disposed on the second side relative to the first driven roller;
a second driving roller opposed to the second driven roller;
a second driven shaft inserted into the second driven roller and urged against the second driving roller;
a third driven roller disposed between the first driven roller and the second driven roller in the width direction;
a third driving roller opposed to the third driven roller;
a fourth driven roller disposed on the second side relative to the second driven roller;
a fourth driving roller opposed to the fourth driven roller;
and
a reader unit configured to read the image on the sheet,
wherein the first driven shaft is inserted into the first driven roller and the third driven roller,
wherein the second driven shaft is inserted into the second driven roller and the fourth driven roller, and
wherein the first driven shaft is shorter than the second driven shaft.

13 more elements

A conveyance apparatus comprising:

a wall disposed on a first side of the conveyance apparatus in a width direction, the wall extending in a direction orthogonal to the width direction, the width direction being orthogonal to a conveyance direction of a sheet to be conveyed;
a first driven roller disposed on a second side of the conveyance apparatus in the width direction relative to the wall, the second side being opposite to the first side;
a first driving roller opposed to the first driven roller;
a first driven shaft inserted into the first driven roller and urged against the first driving roller;
a second driven roller disposed on the second side relative to the first driven roller;
a second driving roller opposed to the second driven roller;
a second driven shaft inserted into the second driven roller and urged against the second driving roller;
a third driven roller disposed between the first driven roller and the second driven roller in the width direction;
a third driving roller opposed to the third driven roller;
a fourth driven roller disposed on the second side relative to the second driven roller;
and
a fourth driving roller opposed to the fourth driven roller,
wherein the first driven shaft is inserted into the first driven roller and the third driven roller,
wherein the second driven shaft is inserted into the second driven roller and the fourth driven roller, and
wherein the first driven shaft is shorter than the second driven shaft.

12 more elements

An image reading apparatus comprising:

a wall disposed on a first side of the image reading apparatus in a width direction, the wall extending in a direction orthogonal to the width direction, the width direction being orthogonal to a conveyance direction of a sheet on which an image to be read by the image reading apparatus is formed;
a first driven roller disposed on a second side of the image reading apparatus in the width direction relative to the wall, the second side being opposite to the first side;
a first driving roller opposed to the first driven roller;
a first driven shaft inserted into the first driven roller and urged against the first driving roller;
a second driven roller disposed on the second side relative to the first driven roller;
a second driving roller opposed to the second driven roller;
a second driven shaft inserted into the second driven roller and urged against the second driving roller;
a reader unit configured to read the image on the sheet;
and
a detection unit configured to detect a presence of the sheet,
wherein the detection unit is disposed between the first driven roller and the wall in the width direction.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/228,552Filed 28 Mar 2014
Priority: JP 2013-07120629 Mar 2013
Published: US 2014/0291928 A12 Oct 2014
Granted: 30 Jun 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

B65H 5/062
By rollers or balls, e.g. between rollers: between rollers or balls
B65H 29/125
By means of the nip between two, or between two sets of, moving tapes or bands or rollers: between two sets of rollers
H04N 1/00718
Object of the detection: skew
H04N 1/00787
Correcting the position of a sheet before scanning: using mechanical means