Roller device and electronics using the roller device
US6688787B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2002 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Mar 10, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2404/162
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A roller device includes a motor and a speed reducer inside a cylindrical roller or arranged coaxially, and an electronic apparatus includes a printer using the roller device. This roller device comprises a motor (5) disposed on a cylindrical roller (2), a sun gear (7), planet gears (8), a first inner tooth gear (10) provided inside of the cylindrical roller (2), and a second inner tooth gear (11) provided inside of a bearing element (12). The rotation of the bearing element (12) is suppressed by a predetermined force. Thus the rotation of the motor (5) is decelerated, and the cylindrical roller is rotated at a reduced speed. By rotating the bearing element with a force greater than a predetermined force, the cylindrical roller can be rotated manually.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.