Tire and rim combination with exhaust ribs in tire bead

Details Tire and rim combination with exhaust ribs in tire bead Tire and rim combination with exhaust ribs in tire bead

1995-07-27

1997-08-26

Johnstone, Adrienne C.

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

152539, 152543, 152DIG9, B60C 1502, B60C 15024

Patent

active

056606559

ABSTRACT:
A tire and rim combination including a flanged rim and a pneumatic tire. The tire includes a pair of bead parts each provided with a plurality of, preferably at least 8, pieces of exhaust ribs projecting from a bead outside surface and extending outwardly in a radial direction so as to form air passages for escape of air between a rim flange and the bead outside surface during rim assembly. A distance F1 from an inner end of the exhaust rib to a bead base line is in a range of 0.7 to 1.5 times a flange height FH measured from the bead base line, and a distance F2 from an outer end of the exhaust rib to the bead base line is not less than 1.1 times the flange height FH. The exhaust rib has a triangular sectional shape having a width of 0.5 to 1.0 mm and a height of 0.5 to 2.0 mm.

REFERENCES:
patent: 1915963 (1933-06-01), Wait
patent: 4353403 (1982-10-01), Ruip
patent: 5318089 (1994-06-01), Tagashira et al.

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