Article employing inter-leaved elastic layers and inelastic sheets
First Claim
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1. An article of manufacture comprising:
- opposing elastic layers;
a sheet interposed between said layers, said sheet having a plurality of perforations therein and comprising a material having a relatively high modulus of elasticity with respect to said layers; and
whereinthe ratio of the thickness of said layers to the thickness of said sheet is given by
space="preserve" listing-type="equation">t.sub.1 /t.sub.2 ≃
√
E.sub.2 /E.sub.1 where;
t1 =the composite thickness of said layers,t2 =the thickness of said sheet,E1 =modulus of elasticity for said layers,E2 =modulus of elasticity for said sheet.
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Abstract
A pneumatic tire includes a breaker belt interposed between the tread and the tire carcass, the belt including opposing elastic layers with a sheet interposed between the layers, the sheet having a plurality of perforations therein and comprising a material having a relatively high modulus of elasticity with respect to the layers.
13 Citations
16 Claims
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1. An article of manufacture comprising:
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opposing elastic layers; a sheet interposed between said layers, said sheet having a plurality of perforations therein and comprising a material having a relatively high modulus of elasticity with respect to said layers; and
whereinthe ratio of the thickness of said layers to the thickness of said sheet is given by
space="preserve" listing-type="equation">t.sub.1 /t.sub.2 ≃
√
E.sub.2 /E.sub.1where; t1 =the composite thickness of said layers, t2 =the thickness of said sheet, E1 =modulus of elasticity for said layers, E2 =modulus of elasticity for said sheet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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12. An article as recited in claim 10 wherein said additional elastic layer is bonded to said one opposing layer through said perforations in said another sheet and to said sheet.
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13. An article as recited in claim 10 wherein said sheets comprise a like metal.
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14. An article as recited in claim 10 wherein said sheets comprise differing metals.
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15. An article as recited in claim 14 wherein one of said sheets comprises stainless steel, and the other comprises aluminum.
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16. An article as recited in claim 10 wherein said perforations of said another sheet are out of register with said perforations of said one sheet.
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Specification