Belt unit and image forming apparatus
US7434680B2 · kind B2 · utility
9Cited by
17References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 21, 2004 |
| Grant date | Oct 14, 2008 |
| Priority date | — |
| Expiry date | Mar 24, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/1623
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A belt unit (10) includes a drive roller (5), an idle roller (6) and an endless belt (4) stretched around the drive roller (5) and the idle roller (6). The drive roller (5) is supported by a belt frame (8) via bearings (2). The idle roller (6) is supported by the idle roller frame (16) via bearing members (10L, 10R). The idle roller frame (16) is rotatable relative to the belt frame (8) about a rotation axis aligned with the center position of the belt frame (8), with the result that the influence of the deformation of the belt frame (8) is not exerted on the idle roller frame (16).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.