Sand-belt finishing machine having a sand-belt replacement mechanism
US6769974B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Nov 1, 2002 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Nov 1, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B21/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A sand-belt finishing machine having a sand-belt replacement mechanism includes a support rack, a first roller, a second roller, an upright rod, an elastic member, a sand belt, and a pull lever. When the upright rod is moved by the pull lever to compress the elastic member, the distance between the first roller and the second roller is shortened. When the upright rod is released by the pull lever, the upright rod is returned to its original position by the elastic member, so that the distance between the first roller and the second roller is increased. Thus, the sand belt can be mounted on and detached from the first roller and the second roller rapidly, easily and conveniently, thereby facilitating the user replacing the sand belt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.