| 摘要 |
PROBLEM TO BE SOLVED: To make a load on the belt reel to be reduced even when an extremely long section of belt is drawn out of the belt reel or the belt reel is subject to a substantial load. SOLUTION: A belt reel (14) is rotatably attached to a frame and provided with an inner concentrical cavity (20). A rod (22) is disposed in the inner cavity concentrically and with a play. The belt reel is provided with a groove (24) which extends in parallel with the longitudinal axis of the belt reel and reaches the inner cavity. The end part (28) of the belt web is guided from the groove into the interior of the inner cavity of the belt reel, then around the rod and finally returned from the inner cavity through the groove to the outside. A thickened part (30) is formed at the end part of the belt web which is returned from the inner cavity to the outside, and its width measured in the circumferential direction of the belt reel is larger than the minimum width of the groove. |
