Belt control device and image forming apparatus incorporating same

US10955771B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10955771-B2
Application numberUS-202016816266-A
CountryUS
Kind codeB2
Filing dateMar 12, 2020
Priority dateMar 18, 2019
Publication dateMar 23, 2021
Grant dateMar 23, 2021

How to read this patent

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  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A belt control device includes a plurality of rollers, a belt wound around the plurality of rollers and configured to rotate along with the plurality of rollers, a belt contact member that the belt contacts when the belt moves in an axial direction of the plurality of rollers, and a shaft displacement member movable in the axial direction and including an inclined face inclined with respect to a surface of the belt to control movement of the belt in the axial direction. The belt, the belt contact member, and the shaft displacement member are configured to make a frictional force between an edge of the belt and the belt contact member greater than a frictional force between the belt contact member and the shaft displacement member.

First claim

Opening claim text (preview).

What is claimed is: 1. A belt control device, comprising: a plurality of rollers; a belt wound around the plurality of rollers and configured to rotate along with the plurality of rollers; a belt contact member that the belt contacts when the belt moves in an axial direction of the plurality of rollers; and a shaft displacement member movable in the axial direction and including an inclined face inclined with respect to a surface of the belt to control movement of the belt in the axial direction, wherein the belt, the belt contact member, and the shaft displacement member being configured to make a frictional force between an edge of the belt and the belt contact member greater than a frictional force between the belt contact member and the shaft displacement member. 2. The belt control device according to claim 1 , wherein the belt contact member includes a projection on a face of the belt contact member opposite the shaft displacement member, the projection protruding toward the shaft displacement member. 3. The belt control device according to claim 1 , further comprising: a sliding member disposed between the belt contact member and the shaft displacement member. 4. The belt control device according to claim 3 , wherein the sliding member is a film or a sheet. 5. The belt control device according to claim 3 , wherein the sliding member is a lubricant. 6. An image forming apparatus comprising the belt control device according to claim 1 . 7. An image forming apparatus comprising the belt control device according to claim 3 .

Assignees

Inventors

Classifications

  • relating to the driving mechanism for the intermediate support, e.g. gears, couplings, belt tensioning · CPC title

  • using edge limitations · CPC title

  • with means for handling the intermediate support, e.g. heating, cleaning, coating with a transfer agent · CPC title

  • by friction · CPC title

  • details of the the intermediate support, e.g. chemical composition · CPC title

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Frequently asked questions

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What does patent US10955771B2 cover?
A belt control device includes a plurality of rollers, a belt wound around the plurality of rollers and configured to rotate along with the plurality of rollers, a belt contact member that the belt contacts when the belt moves in an axial direction of the plurality of rollers, and a shaft displacement member movable in the axial direction and including an inclined face inclined with respect to …
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 Mar 23 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 9 related publications on this page (citations in our corpus or others sharing the same primary CPC).