Paper feed roller
US5669605A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Apr 2, 1996 |
| Grant date | Sep 23, 1997 |
| Priority date | — |
| Expiry date | Apr 2, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2404/185
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
There is provided a paper feed roller capable of being used for delivering and feeding paper, which is high in coefficient of friction, has sufficient hardwearing properties with the coefficient of friction not affected by the change in environment of temperature and humidity, is low in ink transferability and is small in change in passage of year of the coefficient of friction of the surface. A coating layer 5 formed of an elastic material such as rubber is formed on an surface of a core material 4 molded of a foamed material such as sponge, and a bonding agent 6 having an elasticity such as denatured silicon is coated on the surface of the coating layer 5 so that ceramic particles 7 are fixed without clearance to provide a paper feed roller 1. Alternatively, the bonding agent 6 is directly coated on the surface of the core material 4 molded of a pliable material such as soft rubber and sponge so that the ceramic particles 7 are fixed without clearance to provide the paper feed roller 9.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.