| 摘要 |
PURPOSE:Not to make a cover an obstacle in removal of fly waste or change of gauge, by attaching the cover to a member moving by a driving motor different from that of the draft part in a liftable way in the vertical direction to a draft part. CONSTITUTION:The sprocket 12 is rotated by the motor 11 to wind up the chain 10, the moving member 5 is raised, so that the cover 3 is lifted as shown by the dashed line. The length of the pillar of the moving member 5 is set in such a way that it is not an obstacle when an operator cleans the draft part 2 and changes gauge, to improve operation efficiency. |
