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US 9,783,367 B2Granted
Conveyor belt
AssigneeThe Yokohama Rubber Co., Ltd.
InventorsAtsushi Miyajima, Ryotaro Suefuji, Hidehiro Sasakuma, Gang Hou
Life of this patent
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Abstract
A conveyor belt includes a core layer disposed between an upper cover rubber layer and a lower cover rubber layer. The core layer is configured from a plurality of steel cords covered by cushioning rubber and arranged in parallel. The rubber that forms the lower cover rubber layer is a low loss rubber that has a loss factor tanδ of 0.07 or less at a frequency of 10 Hz, 2% dynamic strain, and temperature of 20° C. The maximum thickness of the cushioning rubber is reduced to not more than ⅓ the nominal diameter of the steel cords.
Claims2
A conveyor belt, comprising:
- a core layer disposed between an upper cover rubber layer and a lower cover rubber layer, the core layer being configured from a plurality of steel cords covered by cushioning rubber and arranged in parallel;
- a rubber that forms the lower cover rubber layer being a low loss rubber that has a loss factor tanδ of 0.07 or less at a frequency of 10 Hz, 2% dynamic strain, and a temperature of 20° C.;
- and
- a maximum thickness of the cushioning rubber being not more than 1/3 a nominal diameter of the steel cords;
- wherein adjacent steel cords of the core layer are linked by the cushioning rubber and a thickness of the cushioning rubber which covers outer circumferential surfaces of the steel cords is the same as a thickness of a cushioning rubber between adjacent steel cords.
2 more elements
Dependencies are inferred from the claim text.