Recording medium feeding device and image forming apparatus provided with same
US-2015203307-A1 · Jul 23, 2015 · US
Medium conveyance device
US11220407B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11220407-B2 |
| Application number | US-201916569412-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 12, 2019 |
| Priority date | Mar 16, 2017 |
| Publication date | Jan 11, 2022 |
| Grant date | Jan 11, 2022 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A medium conveyance device includes a guiding member that is movably supported on a frame, a pick roller that is rotatably supported on the guiding member and that rotates to feed a medium that is placed on a tray to a feed roller, and a joint unit that transmits a rotation force from a drive shaft to the pick roller.
First claim
Opening claim text (preview).
What is claimed is: 1. A medium conveyance device comprising: a guiding member that is movably supported on a frame; a pick roller that is rotatably supported on the guiding member and that rotates to feed a medium that is placed on a tray to a feed roller; a joint unit that transmits a rotation force from a drive shaft to the pick roller; a separation member that is opposed to the pick roller; an elastic member that applies an elastic force to the guiding member such that the medium is pushed against the pick roller when the medium is interposed between the separation member and the pick roller; and a stopper that regulates elastic deformation of the elastic member such that the elastic force is not applied to the guiding member when a distance between the pick roller and the separation member is shorter than a predetermined distance. 2. The medium conveyance device according to claim 1 , further comprising a switch unit that increases or reduces an area in which the guiding member moves. 3. The medium conveyance device according to claim 2 , wherein the switch unit is movably supported such that the switch unit is arranged in any one of a first position and a second position, the guiding member is fixed to the frame when the switch unit is arranged in the first position, and the guiding member is supported on the frame such that the guiding member is movable when the switch unit is arranged in the second position. 4. The medium conveyance device according to claim 1 , further comprising: a separation member that is opposed to the pick roller; an elastic member that applies an elastic force to the separation member such that the medium is pushed against the pick roller when the medium is interposed between the separation member and the pick roller; and a stopper that limits movement of the separation member such that the separation member does not move to a side of the pick roller when the separation member is arranged in a given position, wherein the guiding member is movably supported such that the pick roller separates from the separation member when the separation member is arranged in the given position.
Assignees
Inventors
Classifications
- B65H3/0669Primary
Driving devices therefor · CPC title
- B65H3/0684Primary
on moving support, e.g. pivoting, for bringing the roller or like rotary separator into contact with the pile · CPC title
Construction of the rollers or like rotary separators (B65H3/0615 takes precedence; construction of feed or guide rollers B65H27/00) · CPC title
Arrangement of roller on a movable frame · CPC title
Location in space · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11220407B2 cover?
- A medium conveyance device includes a guiding member that is movably supported on a frame, a pick roller that is rotatably supported on the guiding member and that rotates to feed a medium that is placed on a tray to a feed roller, and a joint unit that transmits a rotation force from a drive shaft to the pick roller.
- Who is the assignee on this patent?
- Pfu Ltd
- What technology area does this patent fall under?
- Primary CPC classification B65H3/0669. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jan 11 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).