Automatic paper feed apparatus having improved paper separation device
US7735819B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 2, 2007 |
| Grant date | Jun 15, 2010 |
| Priority date | — |
| Expiry date | Aug 1, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2403/42
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An automatic paper feed apparatus includes a paper pickup roller (21), a paper feed roller (31) and a paper separation device (10). The paper separation device is a compound gear consisting of a first paper separation gear (11) and a second paper separation gear (12). The first and second paper separation gears are rotatably and mutually drivably coupled with each other by the engagement between a projection (13) and a protrusion (14) respectively formed thereon. The paper pickup roller and the paper feed roller are respectively actuated to rotate by the second and first paper separation gears through a paper pickup gear mechanism (23) and a paper feed gear mechanism (33, 34) each mounted on a same shaft and engaged therebetween. At the initial stage, the first paper separation gear drives the second paper separation gear to rotate, and thus the paper pickup roller and the paper feed roller are respectively actuated to rotate by the second and first paper separation gears. By then making the linear velocity of the paper feed roller to be higher than that of the paper pickup roller, a predetermined angular clearance is formed between the projection and protrusion of the respective f…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.