Patent ID: 8028733
Filing Date: 2011-10-04
Classification: B29C,B29D,B60C

Abstract:
1. A green tire comprising a surface layer defining a green tire surface and made up of a plurality of windings of at least one unvulcanized rubber tape having a tape width (W 1 ) of from 5 to 50 mm, wherein in said surface layer, each said winding has a cross-sectional shape being substantially rhomboid and having one end at an acute angle corner exposed on said green tire surface and the other end at the opposing acute angle corner, and an angle theta of a diagonal line of said rhomboid drawn between the one end and the other end is not more than 30 degrees with respect to a tangential line to a profile line (Y) of said green tire surface at a point corresponding to said one end on said profile line (Y), wherein an intersecting angle alpha of each interface between the adjacent windings is not more than 30 degrees, said intersecting angle alpha is defined as an angle between said tangential line to the profile line at the point corresponding to said one end and a straight line drawn between said one end and a point of intersection between the interface and an imaginary reference line (Yx) extensive in parallel to the profile line (Y) at a distance of 1 mm inwardly from said one end, and said green tire surface is a part of the outer surface of each of sidewall portions of the green tire such that a part of each of said windings are exposed on said outer surface of each of said sidewall portions of the green tire.