| 摘要 |
PROBLEM TO BE SOLVED: To provide a pipe conveyor structured so that the stresses in all directions generated in a belt in a curved running part is decreased as much as practicable by forming a shape keeping means in a proper arrangement, whereby capable of precluding an increase in the belt running resistance and ensuring the belt running stably. SOLUTION: The pipe conveyor is structured so that the belt 1 in endless form set over between a pair of rollers is allowed to run in a rounded form in pipe shape during its passing through a belt inserting hole 10 provided in a shape keeping frame 11, wherein the frame 11 is fitted with a ball bearing 13 having balls 17 installed in such a way as rotating with no restriction on the direction, and at least part in circumferential direction of the rounded belt is guided by the balls 17 of the ball bearing 13. COPYRIGHT: (C)2006,JPO&NCIPI
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