Core assembly for pneumatic tire

Details Core assembly for pneumatic tire Core assembly for pneumatic tire

1991-07-16

1993-03-16

Ball, Michael W.

Resilient tires and wheels

Tires, resilient

Emergency

152158, 152520, B60C 1704

Patent

active

051941040

ABSTRACT:
A core assembly for a pneumatic tire, which is fitted annularly to an outer peripheral surface of a well portion of a rim, and which rotates should the pneumatic tire collapse owing to a decline in its internal pressure, as an outer surface of the core assembly comes into contact with an inner peripheral surface of a crown portion of the pneumatic tire and an inner peripheral surface of the core assembly slides over the outer peripheral surface of the well portion of the rim. The core assembly includes a sliding portion formed of a resin material having good sliding properties and high heat resistance, and a main body to which the sliding member is secured and which is formed of a material having a high rigidity and a low specific gravity. Accordingly, since the surface of the core assembly contacting the rim is constituted by the sliding member, the core assembly is rotated smoothly when the internal pressure of the pneumatic tire declines, and the overal weight of the core assembly is reduced.

REFERENCES:
patent: Re28196 (1974-10-01), Patecell
patent: 3682219 (1972-08-01), Lindley
patent: 4258767 (1981-03-01), Wilde

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