Bandage pneumatique

Pneumatic tire


A pneumatic tire (1) to be mounted on a 15-degree-taper rim, comprises a tread portion (2), a pair of sidewall portions (3), a pair of bead portions (4) each with a bead core (5) therein, and a carcass (6) comprising a ply of steel cords, wherein in a meridian section of the tire under a state that the tire is not mounted on a rim but the bead portions are held such that the bead width is equal to the rim width of said 15-degree-taper rim, the bead base surface of each said bead portion, which is defined as extending between a bead heel and a bead toe, is substantially straight and inclined at an angle of from 22 to 26 degrees with respect to the tire axial direction, and a ratio La/Lb of the axial width La of the bead base surface to the maximum width Lb of the bead core is in a range of from 1.3 to 1.6.




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Patent Citations (6)

    Publication numberPublication dateAssigneeTitle
    EP-0640500-A1March 01, 1995THE GOODYEAR TIRE & RUBBER COMPANYEnveloppe pneumatique radial
    EP-0958946-A2November 24, 1999Sumitomo Rubber Industry, Ltd.Bandage pneumatique radial destiné aux poids-lourds
    JP-H05185811-AJuly 27, 1993Bridgestone Corp, 株式会社ブリヂストン重荷重用空気入りラジアルタイヤ
    US-5232032-AAugust 03, 1993Compagnie Generale Des Etablissements Michelin - Michelin & CieAssembly consisting of a tire and a removable bead protector
    US-5323830-AJune 28, 1994Compagnie Generale Des Etablissements Michelin - Michelin & CieTire with beads having frustoconical seats and provided with at least one main bead ring and one auxiliary bead ring
    WO-0026044-A1May 11, 2000The Goodyear Tire & Rubber CompanyPneumatic tire having specified bead structure

NO-Patent Citations (1)

    PATENT ABSTRACTS OF JAPAN vol. 017, no. 610 (M-1508), 10 November 1993 (1993-11-10) & JP 05 185811 A (BRIDGESTONE CORP), 27 July 1993 (1993-07-27)

Cited By (0)

    Publication numberPublication dateAssigneeTitle