Conveyor belt
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United States of America Patent
Stats
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Mar 26, 2019
Grant Date -
Jul 12, 2018
app pub date -
Jun 16, 2016
filing date -
Jul 13, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A conveyor belt includes an upper cover rubber and a lower cover rubber disposed above and below a core layer; and a protective fiber layer made from high strength fiber disposed at least in a central portion of the upper cover rubber in a belt width direction and extending continuously in a belt longitudinal direction; an elastic modulus E of the protective fiber layer in the belt longitudinal direction being a low elastic modulus E1 equal to or less than a predetermined value when a tension in the belt longitudinal direction acting on the conveyor belt is equal to or less than a setting tension Ts, and being a high elastic modulus E2 higher than the low elastic modulus E1 when a predetermined high tension higher than the setting tension Ts is acting on the conveyor belt.
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