CN204998264U - Novel load radial tire triangle is glued to be constructed - Google Patents

Abstract

The utility model relates to a novel load radial tire triangle is glued to be constructed, triangle including load radial tire tire bead position sets up along rim of the mouth to side wall position is glued, triangle glue comprises according to series arrangement three kinds of sizing materials, the connecting portion of three kinds of sizing materials all are provided with the slope of mutually supporting with adjacent sizing material shape angle, three kinds of sizing materials reduce according to the order hardness along rim of the mouth to side wall position in proper order. This technique is favorable to load meridian tubeless tire can be realized more in the same direction as smooth transition on the most weak side wall to intensity by intensity the highest rim of the mouth position, has reduced the possibility of using the indentation to cause early damage, the holistic life of extension tire.

Description

A new type of apex rubber structure for radial truck tires

technical field

The utility model relates to a load radial tubeless tire, in particular to an apex structure of a load radial tubeless tire.

Background technique

Generally, the apex rubber of radial truck tires consists of a soft rubber and a hard rubber. It can not only provide the support required by radial truck tires, but also transition to softer sidewall parts through soft rubber. It cannot be ignored that the hardness difference between the soft rubber and the hard rubber is very large, resulting in a large strain gradient, which in turn affects the service life of the tire.

Contents of the invention

In order to overcome the deficiencies of the prior art, in order to solve the problem that the strain gradient of the soft rubber and the hard rubber contact part of the apex rubber is too large, causing adverse effects on the service life of the tire. The utility model relates to a new type of apex structure of a radial load radial tubeless tire, which comprises apex rubber arranged from the bead portion of the load radial tire to the sidewall of the tire. The apex is composed of three kinds of rubber materials arranged in sequence. The connecting parts of the above three rubber materials are all provided with slopes that match the shapes and angles of the adjacent rubber materials, and the hardness of the three rubber materials decreases in sequence from the rim to the sidewall.

The rubber material near the sidewall is formed into a shape close to a triangle.

Among the rubber materials, the rubber materials in the middle position form a shape close to a trapezoid.

Among the rubber materials, the rubber material located at the slit part forms an irregular polygon, and the shape of the part adjacent to the traveler matches the shape of the traveler.

The tire apex structure adopts a new layout: the apex is compounded with three rubber materials (soft rubber, medium rubber and hard rubber) with different hardness, and arranged in order of hardness (soft-medium-hard), reducing the Excessive difference in rubber hardness avoids the phenomenon of excessive strain gradient. This technology is beneficial to the smoother transition of the load radial tubeless tire from the strongest slit to the weakest sidewall, reduces the possibility of early damage caused by indentation, and prolongs the overall service life of the tire.

Description of drawings

Figure 1: a schematic diagram of a semi-finished apex rubber in the prior art;

Figure 2: a schematic diagram of the semi-finished apex rubber of the utility model;

Fig. 3: the prior art apex material distribution diagram;

Fig. 4: the utility model apex rubber material distribution diagram;

In the figure, 1. spigot; 2. sidewall; 3. traveler; 4. apex.

detailed description

The utility model is a new type of apex rubber for load-bearing radial tubeless tires. Its main feature is concentrated in the change of the structure of the apex rubber. This technology is beneficial to improve the service life of the radial load radial tubeless tire. The main features are as follows: the apex is composed of three kinds of rubber materials arranged in order, and the connection parts of the three kinds of rubber materials are all provided with slopes that match the shape and angle of the adjacent rubber materials. The hardness decreases in order to the sidewall part. The rubber material near the sidewall is formed into a shape close to a triangle. Among the rubber materials, the rubber materials in the middle position form a shape close to a trapezoid. Among the rubber materials, the rubber material located at the slit part forms an irregular polygon, and the shape of the part adjacent to the traveler matches the shape of the traveler.

1. Change the composition of the apex rubber into three kinds of rubber materials, and arrange the three rubber materials in order according to the hardness (according to the arrangement of the hardness, the three rubber materials are referred to as hard rubber, medium rubber and soft rubber in turn), It is equivalent to adding a transition layer between the original soft rubber and hard rubber, which reduces the hardness gradient at the soft-hard rubber contact, thereby reducing the strain gradient at the contact point.

2. Part of the soft rubber of the original apex is replaced by the middle rubber, which reduces the deformation of this part, and at the same time prevents the support of the apex from falling too quickly, which plays a transitional role.

3. Similarly, part of the hard rubber of the original apex rubber is also replaced by the middle rubber, which reduces the hardness of this part and makes the transition from the bezel part to the sidewall part smoother.

4. The existence of the middle rubber makes the overall structure of the apex more harmonious. The tire can achieve a smoother transition from the strongest rim to the weakest sidewall, reducing the possibility of early damage caused by indentation. Helps extend the life of the tire as a whole.

The new apex rubber of the truck radial tubeless tire adopting this technology provides a more reasonable and smooth transition from the strongest rim to the weakest sidewall for the whole tire, thereby reducing the strain gradient of the apex. Reduces the possibility of early damage from indentation, helping to extend the overall life of the tire.

Claims (4)

1. A new type of apex structure for radial truck tires, including apex rubber arranged along the bead position of radial truck tires from the bead to the sidewall, the apex is composed of three kinds of rubber materials arranged in order, and the three kinds of rubber The connecting parts of the materials are all provided with slopes that match the shapes and angles of the adjacent rubber materials, and the hardness of the three rubber materials decreases in sequence from the rim to the sidewall. 2. The new apex rubber structure for radial truck tires according to claim 1, characterized in that, the rubber material near the sidewalls forms a shape close to a triangle. 3. The new apex rubber structure for radial truck tires according to claim 1, characterized in that, the middle position of the rubber materials in the rubber materials forms a shape close to a trapezoid. 4. The apex structure of new radial truck tire as claimed in claim 1, characterized in that, the sizing material positioned at the slit position in the sizing material forms an irregular polygon, and the shape of its adjoining portion with the steel traveler is the same as that of the steel traveler. Form fit.