Method of attaching a bead filler to a bead core

A tire bead manufacturing method comprising:

• providing a tire bead filler composed of an unvulcanized rubber and including a triangular body part having a bottom surface comprising a tapered surface of length H and a triangular projection part having an upper surface comprising a tapered surface also of length H, said body part and projection part being integrally connected at an apex of each of the two triangular parts to form a connection point such that their tapered surfaces are arranged to form a V-shape and connected sides adjacent to the tapered surfaces being arranged to form a straight surface;
• supplying an annular tire bead core with an outer, radially peripheral surface and attaching the projection part of the bead filler cylindrically to the annular bead core such that the body part projects in an axially direction relative to the annular bead core and the projection part covers the outer radially peripheral surface of the bead core;
• and
• then turning the filler body part, with said point of connection as a turning and folding point, to attach the tapered surface of the body part onto the tapered surface of the projection part and thereby bringing the filler body part into a substantially perpendicular arrangement relative to said outer, radially peripheral surface of the bead core.