US 10,399,802 B2Granted

Sheet feeding apparatus and image forming apparatus

AssigneeCanon Kabushiki Kaisha

InventorsFumihiko Hayayumi, Toshiki Ishida

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Abstract

A sheet feeding apparatus includes a damper mechanism having a movable portion supported by a sheet storage portion and movable with respect to the sheet storage portion by abutting against a body in a case where the sheet storage portion is inserted to the body, and a resistance member. In addition, a first transmission portion actuates the resistance member to produce a resistive force and transmits the resistive force so that an insertion speed of the sheet storage portion is reduced when the sheet storage portion is inserted to the body, and a second transmission actuates the resistance member to produce the resistive force and transmits the resistive force so that a lowering speed of the sheet supporting member is reduced when the sheet storage portion with the sheet supporting member having been lifted by a lift portion is drawn out of the body.

Claims15

Dependent claims

A sheet feeding apparatus comprising:

a body;
a sheet storage portion configured to store a sheet and inserted to the body;
a sheet supporting member configured to support the sheet and liftable with respect to the sheet storage portion;
a lift portion configured to lift the sheet supporting member with respect to the sheet storage portion;
and
a damper mechanism comprising:
a movable portion supported by the sheet storage portion and configured to be moved with respect to the sheet storage portion by abutting against the body in a case where the sheet storage portion is inserted to the body;
a resistance member configured to produce a resistive force;
a first transmission portion interposed between the resistance member and the movable portion, the first transmission portion configured to actuate the resistance member to produce the resistive force and transmit the resistive force to the movable portion along with movement of the movable portion, so that an insertion speed of the sheet storage portion is reduced in a case where the sheet storage portion is inserted to the body;
and
a second transmission portion interposed between the resistance member and the sheet supporting member, the second transmission portion configured to actuate the resistance member to produce the resistive force and transmit resistive force to the sheet supporting member along with lowering movement of the sheet supporting member, so that a lowering speed of the sheet supporting member is reduced in a case where the sheet storage portion with the sheet supporting member having been lifted by the lift portion is drawn out of the body.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/928,296Filed 22 Mar 2018
Priority: JP 2017-08486721 Apr 2017
Published: US 2018/0307174 A125 Oct 2018
Granted: 3 Sep 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

B65H 1/14
With means for advancing the articles to present the articles to the separating device: comprising positively-acting mechanical devices
B65H 1/266
With auxiliary supports to facilitate introduction or renewal of the pile: support fully or partially removable from the handling machine, e.g.…
G03G 15/6502
Apparatus which relate to the handling of copy material: supplying of sheet copy material; Cassettes therefor
B65H 2403/41
Toothed gearings: rack-and-pinion, cogwheel in cog railway

Family

US 2018/0307174 A1Pre-grant publication · published 25 Oct 2018
US 10,399,802 B2This patent

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

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