Patent ID: 9109656
Filing Date: 2015-08-18
Classification: F16G

Abstract:
1. A power transmission belt comprising: a body having a length, a width between laterally spaced sides, an inside and an outside, the body comprising rubber and including at least one embedded load carrying member extending in a lengthwise direction, the body defining a plurality of teeth spaced along the length of the belt on at least one of the inside and outside of the body, wherein: (a) the at least one load carrying member has an occupying rate (R) that is not less than 75% with R=n×Dc/B×100 where: (b) the at least one load carrying member has a cross-sectional area taken transversely to the length of the body that is in a range of 1.10 to 1.70 mm wherein the at least one load carrying member comprises a plurality of cords that are twisted together and a twist multiplier (K) for the plurality of cords that are twisted together to define the at least one load carrying member is in the range of 1.5≦K≦2.5 with K=T×D wherein the at least one of the inside and outside of the body has a surface that is covered by a cloth layer, wherein the cloth layer: (a) has a first surface applied to the belt body and an oppositely facing second surface exposed to engage a cooperating pulley; and (b) comprises a multi-woven structure comprising a warp and at least two different wefts that are interwoven, wherein the warp comprises nylon fiber and at least one of the two different wefts exposed at the second surface comprises fluorine based fiber.