A heavy truck tire is provided with a bead design that has a bead core and a reinforcement ply that wraps around a section of the bead core and has a return casing ply. Bead filler is present that has a portion radially outward from the bead core and axially inboard from the return casing ply. A stiffener layer is present that has a portion located outboard from the return casing ply. The bead has a first bead layer with a portion between the return casing ply and the stiffener layer, and a second bead layer that has a portion outboard from the stiffener layer. The stiffness of the first and second bead layers is 8 MPa to 14 MPa. The stiffness of the bead filler is less than the stiffness of the first and second bead layers.
TRUCK TIRE WITH STIFF OUTER BEAD PRODUCTS
29.12.2022
Patent
Elektronische Ressource
Englisch
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
Light truck tire with light-weight tire bead structure
Europäisches Patentamt | 2023
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