Invention Grant
- Patent Title: Tire
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Application No.: US17555662Application Date: 2021-12-20
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Publication No.: US11667157B2Publication Date: 2023-06-06
- Inventor: Hiroshi Kikuchi
- Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
- Applicant Address: JP Hyogo
- Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
- Current Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
- Current Assignee Address: JP Hyogo
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP 2020218657 2020.12.28
- Main IPC: B60C11/00
- IPC: B60C11/00 ; B60C11/01 ; B60C11/03

Abstract:
In a tire, a tread includes a cap layer forming a part of the outer surface of the tire, an intermediate layer disposed inwardly of the cap layer in the radial direction, and a base layer disposed inwardly of the intermediate layer in the radial direction. A loss tangent of the intermediate layer at 30° C. is less than a loss tangent of the cap layer at 30° C., and a loss tangent of the base layer at 30° C. is less than the loss tangent of the intermediate layer at 30° C. An outer end of the cap layer is disposed outwardly of an outer end of the base layer in the axial direction. In the radial direction, a position of the outer end of the cap layer coincides with a position of the outer end of the base layer, or the outer end of the cap layer is disposed inwardly of the outer end of the base layer.
Public/Granted literature
- US20220203771A1 TIRE Public/Granted day:2022-06-30
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