Power transmission belt using stabilized open mesh textile material in overcord for enhanced rubber penetration
AssigneeThe Gates Corporation
InventorPaul S. Knutson
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Abstract
A power transmission belt using an open mesh textile material in the belt overcord which is stabilized with a material promoting permeation of an underlying gum rubber layer through interstices in the textile material during vulcanization of the belt. The coefficient of friction of the backside of the belt is sufficient to enable the belt to drive backside pulleys, tensioners and other mechanical devices.
Claims9
A power transmission belt comprising a rubber body, a strain-resisting tensile member embedded in the body, an overcord section terminating in a generally flat exterior belt back surface, and an undercord section, the improvement comprising an open mesh textile material formed of interlacing yarns defining interstices between adjacent yarns, the yarns being at least partially coated with a stabilizer material, the coated textile material being positioned at the exterior belt back surface and a rubber layer adhered to the coated textile material on its under-surface and interposed between the coated textile material and the strain-resisting tensile member, the rubber layer also being positioned within the interstices and at the belt back surface, and the open mesh textile material has an openness factor defined by the following formula:
- 0.20 ≤ 1 / x - y 1 / x ≤ 0.98
- where x=yarn count in ends per mm and y=yarn diameter in mm.
Dependencies are inferred from the claim text.