| 摘要 |
PROBLEM TO BE SOLVED: To provide a belt which can freely adjust a cushion effect in a job site in the case that a workpiece is changed, for preventing its damage when a farm and marine product, food, etc., are conveyed. SOLUTION: Two annular sheets of rubber, a resin, etc., are piled together, both side end parts thereof are fused, an air-tight air bag 1 is formed, and a valve 4 adjusting an internal pressure of the air bag 1 is provided partly in a side surface. A mesh 11 knitting a wire of rigidity higher than a sheet material in a mesh-state is buried in the sheet constituting the air bag 1, its external surface is prevented from being swollen in a drum shape.
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