| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a clean lifting device capable of effectively preventing a foreign matter having entered into an R-shaped passage from being lifted together with a game ball.SOLUTION: Generally R-shaped passages extending along the outer peripheral surface of a lower roller of a lifting device body are spaced and arranged at a wider interval than the diameter of a game ball, and comprise: guide plates 150 and 150 for guiding the game ball in the rotational direction of the lower roller; and a pressure plate 151 having a pushing face 151a for pushing the game ball against the lower roller. At least a portion of the pushing face 151a is formed elastically deformable between the guide plates 150 and 150.</p> |
