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US 9,623,706 B2Granted
Tire with welded thermoplastic constituent members
AssigneeBridgestone Corporation
InventorsYoshihide Kouno, Seiji Kon, Keiichi Hasegawa
Life of this patent
Estimating the term…
Abstract
It is ensured the strength of a welded section in a tire that is configured by welding tire constituent members formed of a thermoplastic material. A tire has a first welded portion, in which one section of one tire constituent member and one section of another tire constituent member are both melted and welded, and a second welded portion, which is formed by welding a welding-use thermoplastic material to the surface of the first welded portion, whereby the strength of the joint section is ensured.
Claims6
A tire comprising:
- one tire constituent member and another tire constituent member that are formed of a thermoplastic material, the one tire constituent member forming one side of the tire across the tire equatorial plane, and the other tire constituent member forming the other side of the tire across the tire equatorial plane;
- a first welded portion that is disposed on the tire equatorial plane and on a tire inner surface side formed by the one tire constituent member and the other tire constituent member, the tire inner surface side of the first welded portion, in which one section of the one tire constituent member and one section of the other tire constituent member are provided, being convex, and a tire outer surface side of the first welded portion being concave, the convex and concave shapes resulting from the welding of the first welded portion;
- and
- a second welded portion that is disposed on the tire equatorial plane and on the tire outer surface side, the second welded portion being formed by circumferentially extruding a welding-use thermoplastic material at the surface of the concave section of the first welded portion, and
- wherein the first welded portion and the second welded portion have bilaterally symmetrical shapes across the tire equatorial plane, respectively.
2 more elements
Dependencies are inferred from the claim text.