Belt reinforcing material and belt constructed therewith
First Claim
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1. A belt reinforcing material comprising two layers of textile fibrous material with portions of one of the layers attached to the other layer and where one of the layers is a twined fabric, and wherein the improvement comprises:
- a non-woven fabric layer of material attached to the layer of twined fabric material by fibers of one layer interlaced by needle punching with fibers of the other layer, and wherein the non-woven fabric layer is a calendered web of heat bonded, non-woven fibrous material.
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Abstract
A belt reinforcing material of at least two layers where one layer is a twined fabric and the other layer is a woven fabric that are attached to each other such as by needle-punching. A toothed power transmission belt with a plurality of teeth spaced along one side of the belt includes the aforementioned fabric disposed at a peripheral surface that includes the belt teeth.
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Citations
18 Claims
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1. A belt reinforcing material comprising two layers of textile fibrous material with portions of one of the layers attached to the other layer and where one of the layers is a twined fabric, and wherein the improvement comprises:
a non-woven fabric layer of material attached to the layer of twined fabric material by fibers of one layer interlaced by needle punching with fibers of the other layer, and wherein the non-woven fabric layer is a calendered web of heat bonded, non-woven fibrous material. - View Dependent Claims (2, 3, 4)
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5. A belt reinforcing material comprising two layers of textile fibrous material with portions of one of the layers attached to the other layer and where one of the layers is a twined fabric, and wherein the improvement comprises:
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a non-woven fabric layer of material attached to the layer of twined fabric material by fibers of one layer interlaced by needle punching with fibers of the other layer; and a layer of thermoplastic material bonded to an exterior facing surface of the twined fabric material.
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- 6. A toothed belt having a belt body formed primarily of an elastomer and a plurality of belt teeth attached to the belt body, the belt teeth also reinforced with a multi-layer composite reinforcing material comprising a first layer of fibrous twined fabric material positioned at a peripheral edge of the belt teeth, a second layer of non-woven fibrous fabric material attached to the first layer wherein fibers of one of said first or second layers are interlaced with the fibers of the other layer, and the second layer is contained within and reinforces the belt teeth.
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10. A toothed belt with a belt body primarily formed of a urethane elastomer and reinforced with a layer of textile fibrous material at a peripheral edge that includes the belt teeth, the improvement in the fibrous material comprising:
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a non-woven fabric layer of material attached to a layer of woven material by fibers of one layer interlaced by needle punching with fibers of the other layer; and a layer of thermoplastic material bonded to the layer of woven material and externally exposed along the peripheral edge. - View Dependent Claims (11, 12, 13)
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- 14. A toothed belt having a belt body formed primarily of an elastomer and a plurality of belt teeth attached to the belt body, the belt teeth also formed primarily of an elastomer and reinforced along their peripheral edge with a multi-layer composite reinforcing material, the reinforcing material comprising a first layer of woven fibrous material, a second layer of non-woven fibrous fabric material attached to the first layer at a plurality of spaced points, and wherein fibers of the second non-woven fibrous fabric material are embedded within the elastomer of the belt teeth.
Specification