A tire-wheel assembly with durability during run-flat traveling improved beyond conventional levels is provided. The tire-wheel assembly includes a run-flat support member (3) disposed on an inner side of a tread portion of a pneumatic tire (2), wherein the run-flat support member (3) is made from a foamed body and has a height 1/2 or greater of a cavity height of the pneumatic tire (2); when an internal pressure of the pneumatic tire (2) is higher than a predetermined air pressure, the run-flat support member (3) does not come into contact with a rim (1) of the wheel, a side portion (5) of the pneumatic tire, or an inner circumferential surface of a bead portion (6); and when an internal pressure of the pneumatic tire (2) is equal to or lower than a predetermined air pressure, an inner side of the run-flat support member (3) in a tire radial direction comes into contact with an outer circumference of the rim (1) of the wheel and/or the inner circumferential surface of the bead portion (3) of the pneumatic tire (2).
TIRE/WHEEL ASSEMBLY
RAD-/REIFENANORDNUNG
ENSEMBLE PNEU/ROUE
2020-01-01
Patent
Elektronische Ressource
Englisch