Feeding device

Patent metadata

Field	Value
Publication number	US-11975937-B2
Application number	US-202117457779-A
Country	US
Kind code	B2
Filing date	Dec 6, 2021
Priority date	Dec 7, 2020
Publication date	May 7, 2024
Grant date	May 7, 2024

Abstract

A feeding unit includes: a retard roller; a holder section; a protruding section; an accommodating section; a pressing section; a first restricting section; and a second restricting section. The holder section rotatably holds the retard roller. The protruding section serves as a rocking fulcrum of the holder section. The accommodating section accommodates the holder section. The pressing section presses the holder section. The first restricting section restricts movement of the holder section in a retreating direction. The second restricting section restricts movement of the holder section in a direction opposite to the retreating direction. The pressing section is arranged so as to deviate in a Y direction with respect to a virtual line passing through a middle point of the protruding section and a middle point of the first restricting section. The holder section comes into contact with the first restricting section and the second restricting section.

First claim

What is claimed is:

1. A feeding device comprising:
a retard roller that comes into contact with a feeding roller for feeding a medium and that is configured to rotate about a shaft;
at least one holder that rotatably holds the retard roller, the holder includes a first holder that rotatably holds the retard roller and a second holder that holds the first holder in a pivotable position, the second holder includes a guiding member that guides the medium toward the feeding roller;
a protruding section that is provided in the holder and serves as a rocking fulcrum of the holder;
an accommodating section that includes a holding section which holds the protruding section and that accommodates the holder;
a pressing section that presses the holder in a retreating direction in which the holder separates from the accommodating section;
a first restricting section that is provided in the accommodating section and restricts movement of the holder in the retreating direction; and
a second restricting section that is provided in the accommodating section and restricts movement of the holder in a direction opposite to the retreating direction, wherein
the pressing section is arranged so as to deviate in an axial direction of the retard roller with respect to a virtual line passing through a middle point of the protruding section and a middle point of the first restricting section in the axial direction, and
the holder comes into contact with the first restricting section and the second restricting section.

2. The feeding device according to claim 1 , further comprising
a second pressing section, wherein
the pressing section functions as a first pressing section, and
the second pressing section presses the first holder such that the feeding roller comes into contact with the retard roller.

3. The feeding device according to claim 2 , wherein
a changing section configured to change a position of the guiding member in a direction intersecting the axial direction is provided in at least one of the guiding member or the second holder.

4. The feeding device according to claim 3 , wherein
the changing section includes a third pressing section that presses the guiding member toward the feeding roller.

5. The feeding device according to claim 2 , wherein
the first pressing section is arranged in one of a first region and a second region that are divided by the virtual line, and
the second restricting section is arranged in another of the first region and the second region.

6. The feeding device according to claim 5 , wherein
the first pressing section is arranged in a smaller one of the first region and the second region.

7. The feeding device according to claim 2 , wherein
in a state in which the second holder is accommodated in the accommodating section and in which the first restricting section restricts movement of the second holder,
the first pressing section and the first restricting section overlap each other in the axial direction.

8. The feeding device according to claim 2 , further comprising:
a releasing section; and
a cover member, wherein
the first restricting section is provided so as to be movable between a restricting position at which the first restricting section restricts movement of the second holder in the accommodating section and a releasing position at which the first restricting section is separated from the restricting position,
the releasing section moves the first restricting section to the releasing position, and

the cover member covers the releasing section in a state in which the cover member is attached to a device main body.

9. The feeding device according to claim 2 , wherein
the first holder includes an operation section, and
the retard roller separates from the feeding roller when the operation section is operated.

10. A feeding device comprising:
a retard roller that comes into contact with a feeding roller for feeding a medium and that is configured to rotate about a shaft;
at least one holder that rotatably holds the retard roller;
a protruding section that is provided in the holder and serves as a rocking fulcrum of the holder;
an accommodating section that includes a holding section which holds the protruding section and that accommodates the holder;
a pressing section that presses the holder in a retreating direction in which the holder separates from the accommodating section;
a second pressing section;
a first restricting section that is provided in the accommodating section and restricts movement of the holder in the retreating direction; and
a second restricting section that is provided in the accommodating section and restricts movement of the holder in a direction opposite to the retreating direction, wherein
the pressing section is arranged so as to deviate in an axial direction of the retard roller with respect to a virtual line passing through a middle point of the protruding section and a middle point of the first restricting section in the axial direction,
the holder comes into contact with the first restricting section and the second restricting section,
the holder includes a first holder that rotatably holds the retard roller and a second holder that holds the first holder in a pivotable position,
in a state in which the second holder is accommodated in the accommodating section and in which the first restricting section restricts movement of the second holder, and
the pressing section and the first restricting section overlap each other in the axial direction.

11. A feeding device comprising:
a retard roller that comes into contact with a feeding roller for feeding a medium and that is configured to rotate about a shaft;
at least one holder that rotatably holds the retard roller;
a protruding section that is provided in the holder and serves as a rocking fulcrum of the holder;
an accommodating section that includes a holding section which holds the protruding section and that accommodates the holder;
a pressing section that presses the holder in a retreating direction in which the holder separates from the accommodating section;
a second pressing section;
a releasing section;
a cover member;
a first restricting section that is provided in the accommodating section and restricts movement of the holder in the retreating direction; and
a second restricting section that is provided in the accommodating section and restricts movement of the holder in a direction opposite to the retreating direction, wherein
the pressing section is arranged so as to deviate in an axial direction of the retard roller with respect to a virtual line passing through a middle point of the protruding section and a middle point of the first restricting section in the axial direction,
the holder comes into contact with the first restricting section and the second restricting section,
the holder includes a first holder that rotatably holds the retard roller and a second holder that holds the first holder in a pivotable position,
the pressing section functions as a first pressing section,
the second pressing section presses the first holder such that the feeding roller comes into contact with the retard roller,
the first restricting section is provided so as to be movable between a restricting position at which the first restricting section restricts movement of the second holder in the accommodating section and a releasing position at which the first restricting section is separated from the restricting position,
the releasing section moves the first restricting section to the releasing position, and the cover member covers the releasing section in a state in which the cover member is attached to a devi

Assignees

• Seiko Epson Corp

Inventors

• Kondo Katsuyuki
• Ao Junko

Classifications

• B65H3/5215 Primary

  the retainers positioned under articles separated from the top of the pile · CPC title

• B65H3/0669

  Driving devices therefor · CPC title

• B65H3/0684

  on moving support, e.g. pivoting, for bringing the roller or like rotary separator into contact with the pile · CPC title

• B65H3/0661 Primary

  for separating inclined-stacked articles with separator rollers above the stack · CPC title

• B65H3/5261

  Retainers of the roller type, e.g. rollers · CPC title