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Tire with self-sealing inner coating
| Details |
Inventors: Chemizard, Andre;
Assignee: Compagnie Generale des Etablissements Michelin (Clermont-Ferrand, FR)
Primary Examiner: Silverstrim; John P.
Assistant Examiner: Underwood; D. W.
Attorney, Agent or Firm: Brumbaugh, Graves, Donohue & Raymond
A tire having a tread, sidewalls and an inner wall, said inner wall having, at least over the portion corresponding to the width of the tread, a layer of a self-sealing agent, a layer of elastomer arranged radially inward of the layer of self-sealing agent and partitions defining volumes of self-sealing agent arranged between said layer of elastomer and the inner wall of the tire is improved due to the fact that the transverse distances measured along the inner wall of the tire between successive partitions decrease from the tread in the direction towards the sidewalls of the tire. |
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DETAILED DESCRIPTION What is claimed is: 1.
A tire having a tread, sidewalls and an inner wall, said inner wall having, at least over the portion corresponding to the width of the tread, a layer of a self-sealing agent, a layer of elastomer arranged radially inward of the layer of self-sealing agent and partitions defining volumes of self-sealing agent arranged between said layer of elastomer and the inner wall of the tire, characterized by the fact that the transverse distances measured along the inner wall of the tire between successive circumferentially arranged partitions decrease from the tread in the direction towards the sidewalls of the tire.
2.
A tire according to claim 1, characterized by the fact that the transverse distances between successive partitions are between 6 and 20 times the thickness of the layer of self-sealing agent in the equatorial zone of the tire and are between 1 and 3 times the thickness of the layer of self-sealing agent in the radially outer half of the sidewalls.
3.
A tire according to claim 1, characterized by the fact that the partitions are linear in radial cross section.
4.
A tire according to claim 3, characterized by the fact that the partitions have different inclinations with respect to the normal to the inner wall of the tire.
5.
A tire according to claim 3, characterized by the fact that the partitions have an inclination of between 10.
degree.
and 45.
degree.
with respect to the normal to the inner wall of the tire.
6.
A tire according to claim 1, characterized by the fact that the partitions have a thickness between 5% and 60% of the thickness of the self-sealing agent.
7.
A tire according to claim 1, characterized by the fact that the partitions are arranged in circumferential direction.
PG,7 8.
A tire having a tread, sidewalls and an inner wall, said inner wall having, at least over the portion corresponding to the width of the tread, a layer of a self-sealing agent, a layer of elastomer arranged radially inward of the layer of self-sealing agent and partitions defining volumes of self-sealing agent arranged between said layer of elastomer and the inner wall of the tire, characterized by the fact that the transverse distances measured along the inner wall of the tire between successive circumferentially arranged partitions decrease from the tread in the direction towards the sidewalls of the tire, the partitions are arranged beneath relief elements of the tread, said relief elements being preferably circumferential ribs
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Manufacturing Materials 
