| 摘要 |
<p>The device has roller-shaped and/or wheel-shaped tool elements (5) arranged parallel to each other on an axle. The tool elements exhibit a circular, interrupted or continuous extent surface and support arms (4) and/or spokes. The spokes are projected from the axle, and connected and/or cooperated with the extent surface. The support arms and/or spokes are formed as sheet metal shaped parts which consist of surfaces bent to each other, and exhibit S-shaped, Z-shaped, O-shaped and U-shaped cross sections. Multiple recesses (9) are provided in surfaces of respective support arms and/or spokes.</p> |
