| 摘要 |
The conveyor comprises a conveyor frame, and conveyor rollers mounted on the conveyor frame. A drive shaft extends along the conveyor frame. At least one drive wheel is rotatable about its axis and is driven from the drive shaft. A drive wheel mounting frame is provided, on which is mounted the drive wheel. The drive wheel mounting frame is movable relative to the conveyor frame such that, when the mounting frame is moved to a first position, the drive wheel is in driving contact with at least one of the conveyor rollers. |
