US 12,421,062 B2Granted

Sheet feeding device

AssigneeCanon Kabushiki Kaisha

InventorSatoshi Tsuda

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Abstract

A sheet feeding device includes a roller unit having first and second engagement units, a first engaged unit, and a pressing arm having a second engaged unit. By being rotated about the first engagement unit from a first position where the first engagement unit and the first engaged unit are engaged with each other, and the second engagement unit and the second engaged unit are not engaged with each other, the roller unit is movable to a second position at which the first engagement unit and the first engaged unit are engaged with each other, and the second engagement unit and the second engaged unit are engaged with each other. By the second engagement unit pressing the second engaged unit to move the roller unit from the first position to the second position, the second engaged unit moves to a position retracted from a second engagement unit movement locus.

Claims9

Dependent claims

A sheet feeding device comprising:

a sheet storage unit configured to store a sheet;
a roller unit including a first roller, and a second roller configured to convey the sheet stored in the sheet storage unit, and having a first engagement unit and a second engagement unit;
and
an apparatus main body including:
a first engaged unit including a holding member that is movable in a direction of an axis line of the first roller, the first engaged unit being configured to engage with the first engagement unit by moving in a first direction;
and
a pressing arm including an arm portion and a second engaged unit attached to the arm portion and movable relative to the arm portion, the second engaged unit being configured to engage with the second engagement unit, the pressing arm being configured to press the roller unit in a direction in which the second roller is urged against the sheet stored in the sheet storage unit,
wherein the roller unit is attachable to and detachable from the apparatus main body,
wherein the roller unit is rotatable about the first engagement unit from (i) a first position at which the first engagement unit and the first engaged unit are engaged with each other, and the second engagement unit and the second engaged unit are not engaged with each other to (ii) a second position at which the first engagement unit and the first engaged unit are engaged with each other, and the second engagement unit and the second engaged unit are engaged with each other, and
wherein, when the roller unit moves from the first position to the second position, the second engagement unit presses the second engaged unit such that the second engaged unit moves to a position retracted from a movement locus of the second engagement unit.

7 more elements

A sheet feeding device comprising:

a sheet feeding roller unit including a first roller, a second roller, a first engagement unit, and a second engagement unit;
a sheet storage unit configured to store a sheet;
and
an apparatus main body including:
a first engaged unit including a holding member that is movable in a direction of an axis line of the first roller, the first engaged unit being configured to engage with the first engagement unit by moving in a first direction;
an urging member configured to urge the holding member in the first direction;
and
a pressing arm having a second engaged unit and a regulation groove having a regulation surface, the pressing arm being configured to urge the second roller in an urging direction in which the second roller is urged against the sheet stored in the sheet storage unit, the second engaged unit being configured to engage with the second engagement unit,
wherein the sheet feeding roller unit is detachable from the apparatus main body by moving in a second direction opposite to the first direction,
wherein the regulation surface is configured to regulate a movement of the second engagement unit in the direction of the axis line when the second roller is urged by the pressing arm in the urging direction,
wherein regulation by the regulation surface is cancelled when the second roller is not urged by the pressing arm in the urging direction, and
wherein the regulation surface is inclined with respect to the direction of the axis line and a vertical direction.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/058,638Filed 23 Nov 2022
Priority: JP 2021-1953241 Dec 2021
Published: US 2023/0166928 A11 Jun 2023
Granted: 23 Sep 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 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 3/0638
Rollers or like rotary separators: construction of the rollers or like rotary separators
B65H 2404/13421
Built-up, i.e. arrangement for mounting axle element on roller body: involving two elements, i.e. an element at each end of roller body
B65H 2404/1421
Arranged on movable frame: rotating, pivoting or oscillating around an axis, e.g. parallel to the roller axis