Patent ID: 6273162
Filing Date: 2001-08-14
Classification: B29D,B60C,Y10T

Abstract:
A pneumatic tire comprisinga tread portion,a pair of sidewall portions,a pair of bead portions with a bead core therein,a carcass comprising a carcass ply extending between the bead portions and turned up around the bead core in each bead portions to form two turnup portion and a main portion there between,each said turnup portion extending radially outwardly and adjoining the main portion from a certain height above the bead core so as to form an adjoining part,a bead core cover disposed between the carcass ply and the bead core for preventing cords of the carcass from direct contacting with the bead core, the bead core cover made of a textile fabric and/or a rubber layer, anda space in each bead portion surrounded by the carcass ply main portion, the turnup portion and the bead core and filled with a gas to form a cavity.