Tires

Details Tires Tires

1987-07-16

1989-01-03

Ball, Michael

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

1523795, B60C 1502, B60C 516

Patent

active

047949686

ABSTRACT:
A tire is disclosed, including a tread portion, sidewalls and a pair of beads each containing a substantially inextensible annular bead core, having a bead seat and an extended toe portion. The extended toe portion includes an elastomeric material, extending lengthwise from the bead core in a direction radially and axially inwards thereof, the toe of a rigidity in the direction of its length such that in use of the tire on a wheel rim having a groove complementary to the toe and engaging the toe when an axially inward force is applied to the tread portion, a radially and axially outwardly directed force is generated at the bead core to affect bead retention. The toe has a substantially continuous, circumferentially extending toe decoupling means at the junction of the tire bead seats and the toe so that the toe is effectively decoupled from the bead in bending of the toe axially inwards of the tire. The decoupling means may be a single cut of a small groove. The resultant tire may safely be fitted to a normal wheel rim without the usual groove for a TD type of tire.

REFERENCES:
patent: 3130965 (1964-04-01), Niclas
patent: 4148348 (1979-04-01), French et al.
patent: 4209051 (1980-06-01), Udall

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