Toe structure of all-steel radial tire with inner tube

Abstract

The invention relates to a toe structure of an all-steel radial tire with an inner tube. The toe structure is characterized in that a hard apex rubber core and a soft apex rubber core are sequentiallywrapped by a tire framework and a toe reinforcing layer in a U shape from inside to outside, the end head of the outer side of the tire framework is lower than the end head of the upper end of the soft apex rubber core, the two ends of the toe reinforcing layer are located below the two end heads of the tire framework respectively, an outer nylon protective layer is located on the outer side of the soft apex rubber core, the end head of the lower end of the outer nylon protective layer is located between the tire framework and the end head of the outer side of the toe reinforcing layer, the end head of the upper end of the outer nylon protective layer is lower than the end head of the upper end of the soft apex rubber core, an inner nylon protective layer is located on the outer side of the soft apex rubber core, and the end head of the lower end of the inner nylon protective layer is located on the inner side of the tire framework turn-up. According to the invention, by applying thetoe wrapping cloth structure and the tire bead lower wrapping cloth structure, the deformation resistance of the tire bead position of the tire is improved, and the damage to the tire toe caused by the stress concentration of the carcass turn-up endpoint and the bead ring endpoint is eliminated.

Description

Technical field[0001]The present invention belongs to the field of tire, and in particular, there is a structural tire tire toe structure with internal tip whole steel.Background technique[0002]The information disclosed in the background is only intended to increase the understanding of the overall background of the present invention, and is not necessarily considered to recognize or imply that the information is intended to be a prior art known to those of ordinary skill in the art.[0003]At present, there is an internal tire tire, including the inner rigid triangulation core, the outer soft triangular film, the carcass curtain, the toe reinforced steel curtain cloth, the toe glue, the fetal side glue and the toe pad, where The hard triangle core and soft triangular core are sequentially by the carcass curtain from the inside to the outside, and the toe is enhanced steel curtain wrap, the wrapped in a carcass curtain, the toe reinforced steel curtain cloth is also packaged. The inne...

AI Technical Summary

Problems solved by technology

Under the standard load condition, the toe support performance and flex resistance performance of this design method can meet the driving requirements of the vehicle, but it is suitable for the use environment where the road conditions are not very good, the curves are large, and the road condition management is not very standardized, overloading, and air pressure deviation. Under high service conditions, the above-mentioned toe opening design methods generally have shortcomings such as insufficient support performance, low flex resistance, and easy stress concentration, which lead to problems such as empty toe opening and bursting of tires.

In addition, under the conditions of poor road conditions, severe overloading, and low air pressure, the bead structure deforms greatly and bends on the rim flange, and the carcass ply turn-up part near the rim flange area and the slit steel wire bag The cloth is compressed and deformed, forming stress concentration, and the tire has quality problems such as ring voids, ring cracks, and explosions, especially at the heel position. Due to the support and friction of the rim, the carcass cord will be worn off by the wire ring under a higher load. caused a blowout

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