| 摘要 |
PROBLEM TO BE SOLVED: To provide a conveyor belt for a shot blasting device having an excellent buckling resistance even if the number of lamination of a canvas layer is large. SOLUTION: In a canvas layer 3a and other canvas layers, where a compression stress is generated because a conveyor belt is on an inner peripheral side of a neutral face when the conveyor belt is actuated, passes around a pulley, and is repeatedly bent, a warp crimp rate C calculated based on ratio of an array pitch P of wefts 5 and a length L of warps 4 between the array pitches P of the wefts 5 is made to 3.6% or more, so as to make a curvature of the warps 4 large. A total value K of a cover factor of the warps 4 and the wefts 5 of the canvas layer 3 and the like is set to 4300 or more and 5500 or less, so as to restrain shrinkage of the canvas layers 3a due to heating at the time of manufacturing the conveyor belt and maintain a large curvature of the warps 4. COPYRIGHT: (C)2008,JPO&INPIT |
