| 摘要 |
The roller (1) is for scraping potatoes and manioc roots and along its periphery are a number of axial tracks (2) for retention of strip-shaped scraping tools (3) axially inserted in the tracks. The tracks have an undercut, which has a radially inwardly increasing width from the track mouth. The tracks are separated by axial intermediate walls (4) with a predetermined minimum wall width (b min), viewed in a peripheral direction and a radial depth (D). |
