| 摘要 |
The unit (20) has a surface coating (23) for a drum (1), with a cylindrical cover surface and a centrally orientated rotary axis. The drum is of the driven deflector type for a conveyor belt, and has a number of parallel orientated rails (21, 22) distributed along the cover surface, each rail being encased in rubber and/or plastics material (23) or similar. The rails, by retention components, are fixed to the cover surface. Two or more adjacent rails are encased in the rubber and/or plastics material forming a cohesive upper support surface (23a) extending over two or more adjacent rails. |
