US 11,913,522 B2
V-ribbed belt and manufacturing method for same
Kouhei Hamamoto, Hyogo (JP); and Takeshi Nishiyama, Hyogo (JP)
Assigned to Mitsuboshi Belting Ltd., Kobe (JP)
Appl. No. 16/615,963
Filed by Mitsuboshi Belting Ltd., Kobe (JP)
PCT Filed May 23, 2018, PCT No. PCT/JP2018/019874
§ 371(c)(1), (2) Date Nov. 22, 2019,
PCT Pub. No. WO2018/216738, PCT Pub. Date Nov. 29, 2018.
Claims priority of application No. 2017-102797 (JP), filed on May 24, 2017; and application No. 2018-097341 (JP), filed on May 21, 2018.
Prior Publication US 2020/0173523 A1, Jun. 4, 2020
Int. Cl. B32B 5/08 (2006.01); B32B 5/02 (2006.01); B32B 25/04 (2006.01); B32B 25/10 (2006.01); B32B 37/16 (2006.01); D04B 1/10 (2006.01); D04B 1/12 (2006.01); F16G 5/06 (2006.01); F16G 5/08 (2006.01); F16G 5/20 (2006.01); F16G 5/22 (2006.01)
CPC F16G 5/20 (2013.01) [B32B 5/026 (2013.01); B32B 5/08 (2013.01); B32B 25/04 (2013.01); B32B 25/10 (2013.01); B32B 37/16 (2013.01); D04B 1/102 (2013.01); D04B 1/12 (2013.01); F16G 5/06 (2013.01); F16G 5/08 (2013.01); F16G 5/22 (2013.01); B32B 2250/02 (2013.01); B32B 2262/0261 (2013.01); B32B 2262/0284 (2013.01); B32B 2262/062 (2013.01); B32B 2262/12 (2013.01); B32B 2305/77 (2013.01); B32B 2317/10 (2013.01); B32B 2367/00 (2013.01); B32B 2377/00 (2013.01); B32B 2433/04 (2013.01); B32B 2605/08 (2013.01); D10B 2201/02 (2013.01); D10B 2331/02 (2013.01); D10B 2331/04 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A V-ribbed belt having a frictional power-transmission surface constituted by a multilayer weft-knitted cloth, wherein:
the multilayer weft-knitted cloth comprises a cellulose-based natural spun yarn, a polyester-based composite yarn, and a polyamide-based yarn;
at least the cellulose-based natural spun yarn and the polyamide-based yarn are disposed in a layer on a frictional power-transmission surface side; and
the multilayer weft-knitted cloth has a content of the cellulose-based natural spun yarn of 5 to 40 mass %.