TIRE WITH APERTURED SHOULDER BLOCK FOR IMPROVED TEMPERATURE CONTROL

摘要

A tire is provided having a plurality of shoulder blocks separated by axial grooves and located along at least one side of the tire. Apertures extend through the shoulder blocks to connect with a circumferential groove. The apertures are located within a certain radial position relative to the axial grooves. Each aperture has a bottom positioned at a radial depth HB relative to the shoulder block and extends completely through the shoulder block along the axial direction. Each aperture has a radial overlap HL with the axial grooves. The ratio HL / Ho is about 0.15 or less and the ratio of HB / Ho is in the range of about 1.0 to about 1.1.