Sheet feeding apparatus

Patent metadata

Field	Value
Publication number	US-12448237-B2
Application number	US-202318138309-A
Country	US
Kind code	B2
Filing date	Apr 24, 2023
Priority date	Apr 25, 2022
Publication date	Oct 21, 2025
Grant date	Oct 21, 2025

Abstract

Provided is a sheet feeding apparatus provided with a storage chamber for storing sheets, a sheet feeding unit including a delivery roller for contacting the sheet stored in the storage chamber to deliver the sheet from the storage chamber, a support member for supporting the storage chamber to allow the chamber to be installed and pulled out in/from an apparatus main body, and a press force switch mechanism including an operation member to switch a press force used for the delivery roller to contact the sheet, the sheet feeding unit is configured to be capable of being installed and pulled out in/from the main body apparatus integrally with the storage chamber, and the press force switch mechanism is provided in the sheet feeding unit.

First claim

The invention claimed is:

1. A sheet feeding apparatus for feeding sheets, comprising:
a storage chamber adapted to store sheets;
a sheet feeding unit including a delivery roller for contacting the sheets stored in the storage chamber to deliver the sheets from the storage chamber;
a support member adapted to support the storage chamber to allow the chamber to be installed and pulled out in/from an apparatus main body; and
a press force switch mechanism including an operation member to switch a press force used for the delivery roller to contact the sheets,
wherein the sheet feeding unit is configured to be capable of being installed and pulled out in/from the apparatus main body integrally with the storage chamber, and the press force switch mechanism is provided in the sheet feeding unit.

2. The sheet feeding apparatus according to claim 1 , wherein the operation member of the press force switch mechanism is disposed in a position for allowing the operation member to be operated in a state in which the sheet feeding unit is pulled out.

3. The sheet feeding apparatus according to claim 2 , wherein the operation member shifts to a first position for bringing the delivery roller into contact with the sheets by a first press force, and a second position for bringing the delivery roller into contact with the sheets by a second press force lower than the first press force.

4. The sheet feeding apparatus according to claim 1 , wherein the operation member is capable of shifting to a first position for bringing the delivery roller into contact with the sheets by a first press force when weight of the sheets is a predetermined value or more, and a second position for bringing the delivery roller into contact with the sheets by a second press force lower than the first press force when weight of the sheets is smaller than the predetermined value.

5. A sheet feeding apparatus for feeding sheets, comprising:
a storage chamber adapted to store sheets;
a sheet feeding unit including a delivery roller for contacting the sheets stored in the storage chamber to deliver the sheets from the storage chamber;
a support member adapted to support the storage chamber to allow the chamber to be installed and pulled out in/from an apparatus main body;
a first press force switch mechanism including a first operation member to switch a press force used for the delivery roller to contact the sheets; and
a second press force switch mechanism including a second operation member to switch a press force used for the delivery roller to contact the sheets,
wherein the sheet feeding unit is configured to be capable of being installed and pulled out in/from the apparatus main body integrally with the storage chamber, and the first press force switch mechanism and the second press force switch mechanism are provided in the sheet feeding unit.

6. The sheet feeding apparatus according to claim 5 ,
wherein
the first operation member is disposed in a position to be operable in a state in which the sheet feeding unit is pulled out, and
the second operation member is disposed in a position to be not operable in the state in which the sheet feeding unit is pulled out.

7. A sheet feeding apparatus for feeding sheets, comprising:
a storage chamber adapted to store sheets;
a delivery roller for contacting the sheets stored in the storage chamber to deliver the sheets from the storage chamber;
a support member adapted to support the storage chamber to allow the chamber to be installed and pulled out in/from an apparatus main body; and
an operation member configured to be operated by an operator to adjust a press force of the delivery roller contacting the sheets,
wherein the operation member is installed and pulled out in/from the apparatus main body integrally with the storage chamber.

8. The sheet feeding apparatus according to claim 7 , wherein the operation member shifts to a first position for contacting the delivery roller with the sheets by a first press force, and a second position for contacting the delivery roller with the sheets by a second press force lower than the first press force.

9. The sheet feeding apparatus according to claim 7 , wherein the operation member is capable of shifting to a first position for contacting the delivery roller with the sheets by a first press force when weight of the sheets is a predetermined value or more, and a second position for contacting the delivery roller with the sheets by a second press force lower than the first press force when weight of the sheets is smaller than the predetermined value.

10. The sheet feeding apparatus according to claim 7 , wherein the operation member is disposed in a position for allowing the operation member to be operated by the operator in a state in which the delivery roller is pulled out.

Assignees

• Akiyama Hiroto
• Canon Finetech Nisca Inc

Inventors

• Akiyama Hiroto

Classifications

• B65H2407/20

  for manual intervention of operator · CPC title

• B65H1/14

  comprising positively-acting mechanical devices {(B65H1/025 takes precedence)} · CPC title

• B65H2402/60

  Coupling, adapter or locking means · CPC title

• B65H7/00

  Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles · CPC title

• B65H2515/30

  Forces; Stresses · CPC title