Pneumatic tire with specified bead portion profile

Details Pneumatic tire with specified bead portion profile Pneumatic tire with specified bead portion profile

2005-03-18

2008-10-21

Johnstone, Adrienne C (Department: 1791)

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

C152S539000, C152S372000

Reexamination Certificate

active

07438102

ABSTRACT:
A bead portion4of a pneumatic tire1includes a vertical rising surface portion Sw1which is connected to a bead base surface Sb through an arc bead heel surface Sh, and a straight or convex arc flange receiving surface portion Sw2which is diagonally extending from the rising surface portion Sw1radially outward and axially outward of the tire. In a normal internal pressure in which no load is applied, the flange receiving surface portion Sw2is not in contact with a flange surface Rf, and in a load state in which 50% or more of normal load is applied, the flange receiving surface portion Sw2comes into contact with the flange surface Rf.

REFERENCES:
patent: 532950 (1895-01-01), Erickson
patent: 575783 (1897-01-01), Quimby
patent: 2933118 (1960-04-01), Waber
patent: 0 358 491 (1990-03-01), None
patent: 1 361 076 (2003-11-01), None
patent: 1 470 938 (2004-10-01), None
patent: 2001-146105 (2001-05-01), None

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