Friction Transmission Belt, Cord for Same, and Manufacturing Method for Same
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United States of America Patent
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Issued Date -
Dec 3, 2020
app pub date -
Nov 12, 2018
filing date -
Dec 7, 2017
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Abstract
The present invention pertains to a friction transmission belt that includes a core cable. The core cable includes a cord comprising: a core yarn containing high elastic-modulus fibers; and a plurality of sheath yarns that are disposed around the core yarn and that contain low elastic-modulus fibers. The cord is twisted and the proportion of the average diameter of the sheath yarn to the average diameter of the core yarn is 0.2 to 0.4.
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