V-RIBBED BELT AND APPLICATION THEREOF - MITSUBOSHI BELTING LTD

Title:

V-RIBBED BELT AND APPLICATION THEREOF

Document Type and Number:

WIPO Patent Application WO/2019/208740

Kind Code:

A1

Abstract:

In a V-ribbed belt provided with a compressed rubber layer which has a plurality of V-ribbed portions extending parallel to one another in a belt longitudinal direction, and which has a friction transmission surface at least a portion of which is capable of coming into contact with a V-ribbed groove portion of a pulley, the friction transmission surface of the compressed rubber layer is formed from a rubber composition vulcanizate including a rubber component and a sound generation resistance improving agent, and a difference Rp-Rb between a radius of curvature Rp of a rib distal end portion of the pulley and a radius of curvature Rb of a rib bottom portion of the V-ribbed belt is adjusted to be between -0.08 and 0.08 mm. The radius of curvature Rb of the rib bottom portion of the V-ribbed belt may be approximately 0.1 to 0.5 mm. The radius of curvature difference Rp-Rb may be between -0.05 and 0.05 mm. The pulley may include a pulley having an outer diameter at most equal to 65 mm.

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Inventors:

IMAI HIROKI (JP)
MARUYAMA YUJI (JP)
HASEGAWA ARATA (JP)

Application Number:

PCT/JP2019/017811

Publication Date:

October 31, 2019

Filing Date:

April 25, 2019

Export Citation:

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Assignee:

MITSUBOSHI BELTING LTD (JP)

International Classes:

F16G5/20; C08K5/06; C08K5/10; C08L23/16; F16G5/00; F16G5/06; F16H7/02

Foreign References:

JP2018035940A	2018-03-08
JP2003148593A	2003-05-21
US5026327A	1991-06-25
JP2003074650A	2003-03-12
JP2011252548A	2011-12-15
JP2004503557A	2004-02-05
JP2018035940A	2018-03-08
JP2004082702A	2004-03-18
JP2018087204A	2018-06-07
JP2019079580A	2019-05-23

Other References: