Document conveyor belt release mechanism
US5452067A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1994 |
| Grant date | Sep 19, 1995 |
| Priority date | — |
| Expiry date | Apr 22, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/60
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An automatic document conveyor for an image processing machine having an endless belt with a driven roller and a follower roller. The endless belt mechanism includes a front frame and a rear frame which are coupled together a distance apart in the direction substantially perpendicular to the longitudinal direction of the endless belt. First and second movable frames are coupled to first ends of each of the front frame and the rear frame and support the follower roller. A third movable frame is coupled to the second end of the front frame. The driven roller is supported by the third movable frame and the second end of the rear frame, and a drive source is coupled to the end of the driven roller adjacent the rear frame. Springs urge the three movable frames in directions tensioning the endless belt. The first and second movable frames can be moved against their springs to release the tension of the follower roller on the endless belt. The third movable frame can be moved against its spring to release the tension of the driven roller on the endless belt while retaining the coupling of the endless belt with the drive source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.