Tread for a motor vehicle tire

Details Tread for a motor vehicle tire Tread for a motor vehicle tire

1991-05-14

1994-02-22

Ball, Michael W.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

152DIG3, B60C 1111

Patent

active

052879054

ABSTRACT:
A tread for motor vehicle tires having circumferential grooves (3) and transverse grooves (4), a plurality of tread blocks (5, 6) circumferentially spaced apart to form two shoulder rows (5) and at least one central row (6) located between the shoulder rows. Each block (5, 6) is provided with one or more sipes or slits (11, 12) that are rectilinear and inclined with respect to the axis of rotation of the tire (2). The sipes (11, 12) of the blocks (5, 6) which constitute each of the shoulder and central rows are parallel to one another. The sipes (12) of the central rows (6) have an inclination, with respect to the axis of rotation, that is greater than the inclination of the sipes (11) of the blocks (6) which constitute the shoulder rows. This arrangement of the sipes (11, 12) substantially reduces the rolling noise of the tire.

REFERENCES:
patent: D264456 (1982-05-01), Ingley
patent: D272053 (1984-01-01), Candiliotis
patent: D280090 (1985-08-01), Graas
patent: D299711 (1989-02-01), Wallet
patent: 4055209 (1977-10-01), Senger
patent: 4794965 (1989-01-01), Langier
patent: 4815512 (1989-03-01), Gerresheim et al.
patent: 4823855 (1989-04-01), Goergen et al.
patent: 4884606 (1989-12-01), Matsuda et al.
patent: 5062461 (1991-11-01), Noguchi
patent: 5137068 (1992-08-01), Loidl et al.

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