Belt device, intermediate transfer device, and image forming apparatus
US-2018267437-A1 · Sep 20, 2018 · US
Belt device, belt regulator, roller unit, and image forming apparatus
US11112734B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11112734-B2 |
| Application number | US-202016820731-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 17, 2020 |
| Priority date | Mar 18, 2019 |
| Publication date | Sep 7, 2021 |
| Grant date | Sep 7, 2021 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A belt device includes a belt wound around a plurality of rollers, one of the plurality of rollers, and a belt contact member disposed on the one of the plurality of rollers. The belt rotates along with the plurality of rollers. The belt contact member faces an edge of the belt in an axial direction of the one of the plurality of rollers and includes a flat portion and a separation portion. The flat portion forms a plane perpendicular to the axial direction of the one of the plurality of rollers. The separation portion is disposed outboard of the flat portion in a radial direction of the one of the plurality of rollers and has a surface located farther from the edge of the belt than the flat portion in the axial direction of the one of the plurality of rollers.
First claim
Opening claim text (preview).
What is claimed is: 1. A belt device comprising: a belt wound around a plurality of rollers and to rotate along with the plurality of rollers; and a belt contact member disposed on one of the plurality of rollers and facing an edge of the belt in an axial direction of the one of the plurality of rollers, the belt contact member including: a flat portion having a plane perpendicular to the axial direction of the one of the plurality of rollers; and a separation portion disposed outboard of the flat portion in a radial direction of the one of the plurality of rollers and having a surface located farther from the edge of the belt than the flat portion in the axial direction of the one of the plurality of rollers, wherein a transition from the flat portion to the separation portion has a continuous derivative. 2. The belt device according to claim 1 , wherein a size of the flat portion is larger than a thickness of the belt in the radial direction of the one of the plurality of rollers. 3. The belt device according to claim 1 , wherein the surface of the separation portion intersects the radial direction and the axial direction of the one of the plurality of rollers. 4. The belt device according to claim 3 , wherein the surface of the separation portion includes an arc-shaped face. 5. A belt regulator comprising: the belt device according to claim 1 ; a shaft displacement member configured to move in the axial direction of the one of the plurality of rollers when the belt moves in the axial direction of the one of the plurality of rollers, the shaft displacement member including an inclined face inclined with respect to a surface of the belt; and a shaft guide disposed opposite the inclined face and being stationary. 6. An image forming apparatus comprising the belt device according to claim 1 . 7. The belt device according to claim 1 , wherein the surface of the separation portion includes an arc-shaped face. 8. A roller unit, comprising: a roller; and a belt contact member disposed on the roller and facing an edge of a belt in an axial direction of the roller, the belt wound around a plurality of rollers including the roller, the belt contact member including: a flat portion having a plane perpendicular to the axial direction of the roller; and a separation portion disposed outboard of the flat portion in a radial direction of the roller and having a surface located farther from the edge of the belt than the flat portion in the axial direction of the roller, wherein a transition from the flat portion to the separation portion has a continuous derivative. 9. An image forming apparatus comprising the roller unit according to claim 8 . 10. The roller unit according to claim 8 , wherein the surface of the separation portion includes an arc-shaped face.
Assignees
Inventors
Classifications
- G03G15/1615Primary
relating to the driving mechanism for the intermediate support, e.g. gears, couplings, belt tensioning · CPC title
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Frequently asked questions
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- What does patent US11112734B2 cover?
- A belt device includes a belt wound around a plurality of rollers, one of the plurality of rollers, and a belt contact member disposed on the one of the plurality of rollers. The belt rotates along with the plurality of rollers. The belt contact member faces an edge of the belt in an axial direction of the one of the plurality of rollers and includes a flat portion and a separation portion. The…
- Who is the assignee on this patent?
- Kumagai Naohiro, Fujita Masanari, Kawagoe Katsuya, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification G03G15/1615. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Sep 07 2021 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 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).