Passenger car tire tread pattern having improved hydroplanning performance on wet road

摘要

PURPOSE: A tire tread pattern for a vehicle improving performance on the wet road is provided to improve handling performance on the surface of the wet road, and to reduce manufacturing expenses of a mold and working hours by increasing rigidity of a tread block and balancing the block. CONSTITUTION: A middle block(3) is arranged symmetrically with a shoulder block(4) to a central main groove(2), and inclined grooves(7) are arranged between a middle block groove(5) of the middle block and a shoulder block groove(6) of the shoulder block, and semigrooves(7) are connected between inclined grooves. The width of the main block is 10-20% larger than the width of the shoulder block contacted to the end of a tread(1). The middle part of the tread in the tire is prevented from being caved in, and hydroplaning is minimized in traveling on the wet road. The rigidity is improved with forming the curved radius of the semigroove and enlarging the area of the shoulder block. Draining performance is improved with preventing hydroplaning during traveling on the wet road at high speed. Handling is performed efficiently with keeping the tread evenly, and manufacturing expenses and hours of a tire mold are reduced.