| 摘要 |
PURPOSE:To reduce abrasion and damage of a corner part by arranging a hand drum shape corner roller having an arc shape recessed surface rotatably freely in a conveyor corner part so that the peripheral surface can be fitted to an inside diameter of a pipeline. CONSTITUTION:An inside curved part 12 is opened on the corner part inner wall 11 in a part corresponding to an elbow pipe 2 curved in an almost L shape, and an installing case 13 enlarged outward is arranged so as to cover this. A hand drum shape corner roller 14 is arranged rotatably freely in this case 13 with a shaft as its center. The peripheral surface 14a of the roller 14 is formed in an arc shape recessed surface so as to be fitted to an inside diameter of a pipeline. Thereby, since an endless chain or a blade 7 connected to this is rotated by means of a corner blade while coming into contact with the roller 14, friction with a conveying means such as the chain becomes rolling friction, and is reduced. Thereby, since resistance of the whole circulating conveying line is reduced, long distance conveyance becomes possible.
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