Pressure roller device
US5080010A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1991 |
| Grant date | Jan 14, 1992 |
| Priority date | — |
| Expiry date | Jan 22, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2227/325
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A pressure roller device includes upper and lower roller holders and small diameter upper and lower pressure rollers which are supported by the upper and lower roller holders, respectively. Upper and lower backup rollers, which are, respectively, provided at upper and lower sides of the upper and lower pressure rollers, remote from a point of contact of the upper and lower pressure rollers are rotatably supported by the upper and lower roller holders, respectively. The upper roller holder is rotatably supported, at one end of the upper and lower roller holders, by the lower roller holder. A pressing mechanism presses the upper roller holder against the lower roller holder, which is provided at the other end of the upper and lower roller holders, with the upper roller holder being rotated so as to be pressed against the lower roller holder, such that the upper and lower pressure rollers are brought into pressing contact with each other by the upper and lower backup rollers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.