Belt sander for delivering workpiece at a constant speed
US7112126B1 · kind B1 · utility
1Cited by
3References
9Claims
0Family size
Inventor
Key dates
| Filing date | Apr 20, 2005 |
| Grant date | Sep 26, 2006 |
| Priority date | — |
| Expiry date | Apr 20, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B21/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A belt sander includes a sand belt unit including an upper roller, a lower roller located under the upper roller and rotated by a propeller shaft of a drive motor, and two auxiliary rollers located at two sides of the lower roller. Each of the two auxiliary rollers and the lower roller are rotated synchronously in the opposite direction. Thus, the workpiece is pressed by the two auxiliary rollers so that the workpiece is moved forward at a constant speed without acceleration during the grinding process of the sand belt, thereby enhancing the grinding effect of the sand belt on the workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.