Photoreceptor belt tensioner providing low variation in belt tension as a function of belt length
US7155144B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2004 |
| Grant date | Dec 26, 2006 |
| Priority date | — |
| Expiry date | Apr 27, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/754
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus for providing tension to a photoreceptor belt mounted for rotation about a plurality of fixed rollers mounted to a frame of an imaging device comprises a tensioning roller having a longitudinal axis and a convex contact surface for forcing a wrap angle with an inner surface of the photoreceptor belt, a moment arm mounted at a first end to the frame for pivotal movement relative to the frame about a pivot axis fixed relative to the frame and mounted at a second end to the tensioning roller; and a force exerting mechanism mounted to the frame and coupled through the moment arm to the tensioning roller to provide a force perpendicular to the longitudinal axis of the tensioning roller, the force exerting mechanism being configured to increase the force exerted thereby as the length of the photoreceptor belt increases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.