Tires
AssigneeDunlop Limited
InventorArthur R. Williams
Life of this patent
Estimating the term…
Abstract
A tread for a road vehicle tire having a pattern having a land-to-sea ratio between 65% to 35% and 75% to 25% and a series of diagonally extending grooves, the axially inner ends of which enter the contact patch between tread and ground before the remaining part of the groove in forward movement of the vehicle.
Claims35
A unidirectional tread for a road vehicle tire having a pattern with an overall "land to sea ratio" (as defined herein) between 65% to 35% and 75% to 25% and comprising at each side of the centreline of the tread a plurality of circumferentially spaced apart lateral grooves, every lateral groove extending outwardly at an angle between 30.degree. and 70.degree. to the centreline and the axially inward end of every lateral groove being behind the remainder of the groove in the contact patch so that in use of the tire on a road vehicle when the vehicle is moving forwards the axially inner end of a groove enters the contact patch between road and tire first, the remainder of the groove entering progressively afterwards.
Dependencies are inferred from the claim text.