专利名称：Pneumatic tire having a single carcass ply
reinforced with metallic cords, a high endingply, turnup and locked bead construction
发明人：Amit Prakash,Donald Woodrow Gilliam,Gary
Edwin Tubb
申请号：US08/518777申请日：19950824公开号：US05779829A公开日：19980714
摘要：The pneumatic tire has a single carcass ply reinforced with parallel metalliccords, each cord composed of at least one filament having a tensile strength of at least (-2000×D+4400 MPa)×95%, where D is the filament diameter in millimeters. The turnupportion of the single carcass ply 12 in the bead portion of a pneumatic tire is interposedbetween the bead core 11 and a toe guard 18, and the radially outer edge of each turnupportion being in contact with the main portion of the carcass ply and extending to an endpoint 0.5 to 4.0 inches (12.7 to 101. 6 mm) radially outward of the bead core. The toeguard 18 has a first and second end and each end is disposed directly adjacent to thecarcass ply. The first end 18a of the toe guard is located on the axially inner side of themain portion of the carcass ply at a location about 0.4 to 3.5 inches (10 to 89 mm) radiallyoutward of the bead core and the second end 18b is located at a point ranging fromsubstantially the axially outermost point of the bead core 11 to a location about 3.5inches (89 mm) radially outward of the bead core. The first end 18a and second end 18bof the toe guard is a shorter distance from the bead core than the end point 12a of the
turnup portion of the carcass ply.
申请人：THE GOODYEAR TIRE & RUBBER COMPANY
代理人：Bruce J. Hendricks
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