V-ribbed belt
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United States of America Patent
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Sep 5, 2017
Issued Date -
N/A
app pub date -
Mar 27, 2014
filing date -
Mar 29, 2013
priority date (Note) -
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Abstract
A V-ribbed belt contains an extension layer forming a belt back face, a compression layer provided on one side of the extension layer, and a tension member embedded between the extension layer and the compression layer and extending in a belt circumferential length direction. The compression layer has a plurality of V-shaped ribs formed to be extending in the belt circumferential length direction and to be a frictional power transmission surface with a pulley. The frictional power transmission surface is covered with a knitted fabric, in which the knitted fabric is knitted out of a polyester-based composite yarn and a cellulose-based natural spun yarn. The polyester-based composite yarn is a bulky yarn, and a knitting ratio of the cellulose-based natural spun yarn is not less than a knitting ratio of the polyester-based composite yarn.
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