US 2013/0256977 A1Published application

Sheet supply apparatus

AssigneeBrother Kogyo Kabushiki Kaisha

InventorsHirotaka AOKI, Tetsuo ASADA

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Abstract

An image recording apparatus includes a supply tray and a supply unit. The supply unit includes a supporting shaft, an arm configured to pivot around the supporting shaft, and, a first roller and a second roller which are provided in the arm. The first and second rollers are pressedly contacted with a sheet placed on the supply tray. The supply tray is provided with a contact portion. The contact portion includes a first contact portion facing to the first roller and second rollers, and a second contact portion disposed in an upstream side of the first contact portion in the supply direction. A friction coefficient of the second contact portion is smaller than that of the first contact portion. When the first and second rollers rotatingly moves on the sheet, a friction force is applied by the second contact portion to the sheet.

Claims11

Dependent claims

A sheet supply apparatus comprising:

a sheet support portion configured to support at least one sheet;
a supporting shaft supported by a main body of the sheet supply apparatus;
an arm configured to pivot around the supporting shaft;
a sheet supply roller provided at a distal end of the arm and configured to supply the at least one sheet in a sheet supply direction in which the at least one sheet is supplied;
and
a contact portion fixed to the sheet support portion and facing to the sheet supply roller,
wherein the contact portion comprises:
a first contact portion;
and
a second contact portion disposed in an upstream side of the first contact portion in the sheet supply direction and having a friction coefficient smaller than a friction coefficient of the first contact portion,
wherein the sheet supply roller is configured to move from a first position at which the sheet supply roller faces to the first contact portion to a second position at which the sheet supply roller faces to the second contact portion, by an elastic deformation of at least one of the sheet support portion, the contact portion, the supporting shaft, the arm, and the sheet supply roller.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/837,582Filed 15 Mar 2013
Priority: JP 2012-07531429 Mar 2012
Published: 3 Oct 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

B65H 3/0684
Rollers or like rotary separators: on moving support, e.g. pivoting, for bringing the roller or like rotary separator into contact with the pile
B65H 3/0669
Rollers or like rotary separators: driving devices therefor
B65H 3/5223
The retainers positioned under articles separated from the top of the pile: retainers of the pad-type, e.g. friction pads
B65H 3/56
Supplementary devices or measures to assist separation or prevent double feed: elements, e.g. scrapers, fingers, needles, brushes, acting on…

Family

US 8,622,381 B2Related patent
US 2013/0256977 A1This patent

From the US filing history. Foreign family members aren’t listed.

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