Patent ID: 7622013
Filing Date: 2009-11-24
Classification: B29C,B29D,B29K,B29L,B60C

Abstract:
1. A method of manufacturing a tire having, on at least one side wall, a first color side wall rubber expressed as characters or lines, second color side wall rubbers, each of which is located on both sides in the radial direction of this first color side wall rubber, and a second color cover rubber covering the first color side wall rubber portion other than the characters or lines, comprising: winding a continuous second color rubber ribbon and a continuous first color rubber ribbon in plural turns to stamp each of the second color side wall rubbers and the first color side wall rubber on the side face of a carcass member formed in the toroidal state, winding a rubber sheet in one turn in the annular state to stamp said cover rubber on the outside of the first and second side wall rubbers by winding so as to shape a green tire, comprising the steps of: in cutting the long rubber sheet extending on said tangent to form the leading end and the rear end of said rubber sheet, both cut-off faces of the leading end and the rear end of the rubber sheet are inclined with respect to the width direction of the long sheet, and the long rubber sheet is cut off so that, in the cut-off face of the rubber sheet leading end, the end in the width direction to be the outside in the radial direction on the annular band is located closer to the front in a traveling direction of the long sheet than the end in a width direction to be an inside in the radial direction, while in the cut-off face of the rubber sheet rear end, the end in the width direction to be the outside in the radial direction on the annular band is located closer to the rear in the traveling direction of the long sheet than the end in the width direction to be the inside in the radial direction, and a rubber sheet portion in a shape of a trapezoid or a triangle defined by the cut-off face of the rear end of the rubber sheet stamped first and the cut-off face of the leading end of the rubber sheet to be stamped next is removed.