Noise-reduction system for vehicle tires

Details Noise-reduction system for vehicle tires Noise-reduction system for vehicle tires

1995-04-10

1996-01-02

Knable, Geoffrey L.

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

152450, B60C 500

Patent

active

054799740

ABSTRACT:
A noise-reduction system for a vehicle wheel assembly which is comprised of a usual rim and a tubeless pneumatic tire having a pair of sidewalls and bead areas mounted thereon. A plurality of flexible, non-self-supporting pieces of cloth or other sheet material are attached to the rim or are attached to the bead areas and extend therebetween, preferably at equally spaced intervals, and form baffles within the annular air chamber of the wheel assembly to reduce noise by changing the characteristics of the sound waves created within the wheel assembly. When the wheel assembly is stationary, the baffles collapse on the rim, and when the wheel assembly is rotating, the baffles move outwardly by centrifugal force and substantially conform to the transverse cross section of the air chamber to obstruct the movement of acoustic waves traveling with the chamber to reduce tire noise.

REFERENCES:
patent: 1956739 (1934-05-01), Gollert
patent: 2493731 (1950-01-01), Watter
patent: 2780806 (1957-02-01), Van Alstyne
patent: 2824592 (1958-02-01), Neisler, Jr.
patent: 3047285 (1962-07-01), Gross
patent: 4381026 (1983-04-01), Skidmore
patent: 4392522 (1983-07-01), Bachorr
patent: 4620580 (1986-11-01), Groezinger et al.
patent: 4909295 (1990-03-01), Nirei et al.

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