| 摘要 |
PURPOSE:To realize the conveyance of a material in a closed condition, by circulating and rotating an endless tube body which is always closed and having a continuous and longitudinally split line, and by providing a feeder adapted to be wedged into the split line in the tube body, for feeding the material thereinto. CONSTITUTION:An endless tube member 10 is provided having an entirely continuous split line 11 and having a wall thickness which is gradually decreased toward the split line 11 so that the split line 11 may be easily opened. Further, contact surface parts 12, 12 are made to be wide so that the split line 11 is tightly closed. This tube body 10 is wound around return sheaves 13 at a conveyed material feeding position A and a discharge position B, and is made into contact with intermediate sheaves 14 at turning positions 14.... Further, a feeder roller 17 having blades 18 wedged into the split line 11 in the tube body 10 and spaced from each other is arranged opposing the return sheave at the feeding position A while an unloader roller 21 having the same structure as that of the feeder roller 17 is arranged at the discharge position B.
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