Belt device, fixing device, and image forming apparatus
US-9342014-B2 · May 17, 2016 · US
Belt device, fixing device, and image forming apparatus
US9720361B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9720361-B2 |
| Application number | US-201615394372-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 29, 2016 |
| Priority date | Oct 2, 2014 |
| Publication date | Aug 1, 2017 |
| Grant date | Aug 1, 2017 |
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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 an endless belt and a rotary driver contacting an outer circumferential surface of the belt to drive and rotate the belt. An opposed belt support is disposed opposite the rotary driver and in contact with an inner circumferential surface of the belt. A rotary belt support is disposed opposite the rotary driver via the opposed belt support and in contact with the inner circumferential surface of the belt. A belt support holder holds the opposed belt support and the rotary belt support to retain a predetermined interval between the opposed belt support and the rotary belt support. A biasing assembly presses against the belt support holder to move the opposed belt support and the rotary belt support collectively with respect to the rotary driver and bias the opposed belt support against the rotary driver.
First claim
Opening claim text (preview).
What is claimed is: 1. A belt device comprising: an endless belt; a rotary driver contacting an outer circumferential surface of the belt to drive and rotate the belt; an opposed belt support disposed opposite the rotary driver and in contact with an inner circumferential surface of the belt; a rotary belt support disposed opposite the rotary driver via the opposed belt support and in contact with the inner circumferential surface of the belt; a belt support holder to hold the opposed belt support and the rotary belt support to retain a predetermined interval between the opposed belt support and the rotary belt support; a biasing assembly to press against the belt support holder to move the opposed belt support and the rotary belt support collectively with respect to the rotary driver and bias the opposed belt support against the rotary driver; a rotary belt support gear mounted on one lateral end of the rotary belt support in an axial direction thereof to transmit a driving force to the rotary belt support, wherein the belt support holder receives a bias generated at the one lateral end of the rotary belt support in the axial direction thereof by the driving force, the belt device further comprising a first gear to mesh with the rotary belt support gear to transmit the driving force to the rotary belt support gear, wherein the belt support holder moves arcuately about an axis of the first gear. 2. The belt device according to claim 1 , wherein the belt support holder includes: a rotary belt support holding portion to hold the rotary belt support and move arcuately about the axis of the first gear; and an opposed belt support holding portion to hold the opposed belt support and move linearly with respect to the rotary driver. 3. The belt device according to claim 2 , further comprising: an arcuate guide to guide the rotary belt support holding portion arcuately about the axis of the first gear; and a linear guide to guide the opposed belt support holding portion linearly with respect to the rotary driver, wherein the rotary belt support holding portion is assembled with the opposed belt support holding portion such that the rotary belt support holding portion is rotatable relative to the opposed belt support holding portion. 4. The belt device according to claim 3 , wherein: the rotary belt support holding portion includes a slide projection to slide over the arcuate guide, and the opposed belt support holding portion includes a groove to engage the linear guide. 5. A fixing device comprising the belt device according to claim 1 . 6. An image forming apparatus comprising the fixing device according to claim 1 .
Assignees
Inventors
Classifications
Retractable heating or pressure unit · CPC title
Structural details of the fixing unit in general, e.g. cooling means, heat shielding means (G03G15/2053 takes precedence) · CPC title
- G03G15/2053Primary
Structural details of heat elements, e.g. structure of roller or belt, eddy current, induction heating · CPC title
the belt further entrained around one or more rotating belt support members · CPC title
Physics · mapped topic
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Frequently asked questions
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- What does patent US9720361B2 cover?
- A belt device includes an endless belt and a rotary driver contacting an outer circumferential surface of the belt to drive and rotate the belt. An opposed belt support is disposed opposite the rotary driver and in contact with an inner circumferential surface of the belt. A rotary belt support is disposed opposite the rotary driver via the opposed belt support and in contact with the inner cir…
- Who is the assignee on this patent?
- Furuichi Yuusuke, Fukuhata Yoshihiro, Fujii Tomohiko, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification G03G15/2053. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Aug 01 2017 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).