Conveying device for adjusting scanning resolution
US7534183B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 31, 2006 |
| Grant date | May 19, 2009 |
| Priority date | — |
| Expiry date | Jan 10, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/193
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A conveying device for adjusting scanning resolution includes a planetary gear transmission a belt and a scanning device. The planetary gear transmission has a base, a first stepping motor and a second stepping motor. A first motor gear drives a sun gear. A second motor gear drives a purl gear. Four planetary gears are received in a hole of the purl gear. The planetary gears are driven by the inner gear and the upper gear at the same time, so the planetary gears rotate around a positioning axle of the sun gear at a speed of half the speed difference of the inner gear and the upper gear. Then a planetary frame rotates along with the planetary gears. A belt wheel mounted on the planetary frame drives the belt with a scanning device to move.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.