Patent ID: 6298890
Filing Date: 2001-10-09
Classification: B60C,Y10S

Abstract:
A pneumatic tire for off-road use on an articulated dump trucks, loaders, graders and other off-road machinery, the pneumatic tire having a tread with a plurality of lugs extending from a first shoulder to a second shoulder, the plurality of lugs being separated by a plurality of wide grooves, the pneumatic tire being characterized by:each lug of the tread having a wide section near at least one of the respective shoulder and a narrow section crossing a centerline of the tread,a linear groove crossing the narrow section of each lug and the centerline, the linear groove having a depth in the range of 20% to 80% of the wide groove depth so that the lug defines a tie bar, the respective wide section of each lug having a shoulder groove, the shoulder groove extending from a respective shoulder to a central portion of the respective wide section.