TIRE HAVING CHIMNEY GROOVES

摘要

The present invention relates to a tire having chimney grooves containing a carbon black along the inside of grooves. The tire having chimney grooves comprises: a cap tread wherein grooves are formed on the surface thereof; cap plies disposed underneath the cap tread; tread cushion rubber attaching the cap plies and the cap tread to each other underneath the cap tread; a chimney groove surface unit formed along the inside of the grooves; and chimney grooves protruding from the chimney groove surface unit towards the cap plies, wherein both side surfaces thereof are concatenated with the tread cushion rubber, and one end thereof is connected to the cap plies to discharge electrostatic charges to the ground. The tread cushion rubber is prepared in a thin film form to radiate heat generated from a contact surface. The chimney grooves contain carbon black to exhibit hydrophobic properties to improve drainage in the grooves and improve hardness of the grooves.