Tire pitch sequencing for reduced tire tread noise

Details Tire pitch sequencing for reduced tire tread noise Tire pitch sequencing for reduced tire tread noise

1991-11-14

1994-05-24

Ball, Michael W.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

B60C 1111

Patent

active

053145518

ABSTRACT:
A tire with reduced tire noise includes a tread having a plurality of base pitches placed about the circumference of the tire in at least one circumferential section. According to one aspect of the invention, the base pitches have three different pitch lengths which form a pitch sequence around the circumference of the tire in each circumferential section. The base pitches are arranged such that the transitions between the base pitches with the smallest pitch lengths to the base pitches with the largest pitch lengths are between about 15% and 30% of the total number of transitions between base pitches of different lengths in the pitch sequence. Additionally, the smallest and largest base pitches each comprise between about 35% and 40% of the total number of base pitches around the circumference of the tire. The above factors, when coupled with no more than three consecutive base pitches having the same pitch length being arranged adjacent one another, provide a tread with reduced tire noise.

REFERENCES:
patent: 2255994 (1941-09-01), Bush
patent: 2808867 (1957-10-01), Buddenhagen et al.
patent: 2878852 (1959-03-01), Lippmann et al.
patent: 3023798 (1962-03-01), Moore et al.
patent: 3926238 (1975-12-01), Vorih
patent: 4474223 (1984-10-01), Landers
patent: 4721141 (1988-01-01), Collette et al.
patent: 4936364 (1990-06-01), Kajiwara et al.

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