A triangular piece of stiff rubber which is fitted onto the bead core to taper the rigid bead into the flexible body plies in the sidewall. Outer edge of the bead. Inner edge of the bead. Breakers are fabric plies placed directly on the upper-most ply beneath the tread rubber.
The breaker component pursuant to conventional techniques is constructed across the tread region as either a single sheet component applied unitarily or a series of overlapping strips extending in the peripheral direction of the tire. The width of the overlap between adjacent strips may be selected across the width of the tire to alter the characteristics of the breaker or to adjust the overlapping breaker strips so that the cumulative width of the strips covers the width of the target breaker region beneath the tread. Variations in the width of the tire may require strips of differing widths or the overlapping of such strips to a greater or lesser extent. While working well and finding commercial application, the technique of constructing a breaker onto a carcass by the overlapping application of breaker strips one at a time carries significant disadvantages. The overlapping portions of adjacent breaker strips represents increased and often unnecessary material waste, adding to the cost of manufacture.
All the breakers are disposed between adjacent carcass plies, and the width of each breaker in the direction of the axis of rotation of the tire is between 55 to 85 percent of the maximum tire width in the same axial direction. Application Data Continuation-in-part of Ser. Each of the carcass plies includes parallel cords whose angle relative to the equatorial direction of the tire at tire sidewalls being to 82, while each of the breaker strips includes parallel cords disposed at an angle of 17 to 30 relative to the equatorial direction of the tire, the carcass cord angle in the tire crown portion relative to the tire equator being between that of the carcass cord at the sidewall and that of the breaker cord.
Tyre Construction Different parts of the tyre are illustrated in Fig. A tyre is made from rubberized fabric piles over a rubber liner and the edges of the piles are wrapped around a wire bead, which holdsthe tyre to the wheel rim. The fabric piles are covered with a rubber compound tread and a different rubber compound for the side walls. The tyre is cured in a mould to vulcanize the parts into a single unit and form the tread design. Major Components The carcass, beads, side walls, and tread are the major components of a tyre cover.