CN106142995A - A kind of carcass enhancement mode tire - Google Patents

Abstract

The invention discloses a kind of carcass enhancement mode radial, including crown, tire shoulder, carcass cord casing ply, sidewall and tyre bead.Outside carcass cord casing ply or inside carcass cord casing ply or carcass cord casing ply inner side and outer side of the present invention is provided with strengthening course, solve tire and carry or easily cause under shock loading upper sidewall explosion or the problem making upper sidewall become tire blow-out starting point at high pressure height, enhance tire and adapt to the ability of harsh use condition, can effectively prevent earlier period damage, extend the service life of tire.

Description

Carcass reinforced tire

technical field

The invention relates to a tire, especially a carcass reinforced tire.

Background technique

In the current all-steel radial tires, especially all-steel radial tires, the steel wires of the carcass steel ply are distributed radially from the bead to the upper side of the tire to the crown, and the gap between the steel wires is from the bead to the upper side of the tire to the crown. Gradually increasing, the density of steel wires in the upper part of the sidewall and the crown area is lower than that in the bead area, resulting in a decrease in the strength of the upper part of the sidewall, while the strength of the crown area does not decrease due to the tightening effect of the circumferential belt layer, so the tire product Under high pressure, high load or impact load, it is easy to cause the upper part of the sidewall to burst or make the upper part of the sidewall to become the starting point of tire bursting, shortening the service life of the tire.

Currently, tires with enhanced sidewall strength come in several forms. Among them, the Chinese patent CN202294098U discloses a sidewall protection type tire. The tire is provided with a protective layer on the outside of the sidewall, and the protective layer and the sidewall part are an integral structure, which solves the problem of the construction machinery tire during use. Mining areas with harsh operating conditions protect the tire carcass internal material from being easily scratched, and cannot prevent the upper part of the sidewall from bursting or making the upper part of the sidewall the starting point of tire bursting under high pressure, high load or impact load; Chinese patent CN203063589U discloses a kind of sidewall reinforced tire, and this tire adds reinforcing layer inside the sidewall, makes the wall thickness of sidewall portion increase, has guaranteed that the sidewall has good wear resistance, has solved the problem of driving the tire on mountain roads. The problem that it is not easy to be worn out can not solve the problem that the tire is easy to cause the upper part of the sidewall to burst or make the upper part of the sidewall to become the starting point of the tire burst under high pressure, high load or impact load; Chinese patent CN202345302U discloses a sidewall anti-explosion For OTR tires, a free ply is set between adjacent turned-up plies, and the free ply does not turn up the bead ring and apex rubber to act as a buffer. These free plies not only strengthen the strength of the carcass, but the most important thing is to disperse The fatigue stress of the carcass is reduced, thereby effectively solving the problem of tire sidewall explosion, but this solution is only used between the multi-ply layers of bias-ply OTR tires, and the overall heat generation is relatively large, so it cannot be used for only one layer of steel wire tires Body radial tires.

Contents of the invention

The technical problem to be solved by the present invention is to provide a carcass-reinforced tire so as to enhance the strength of the carcass ply at the upper part of the sidewall.

In order to solve the above problems, the technical solution adopted in the present invention is to provide a reinforcing layer on the outside of the carcass ply or the inside of the carcass ply or the inside and outside of the carcass ply. The reinforcing layer is composed of a composite of fiber and rubber, with a thickness of 0.5-2.5mm, and can be 1-6 layers, and its coverage area is from the shoulder to 1/5-3/5 of the height of the tire section.

The beneficial effect of the present invention is that when the tire product is under high pressure, high load or impact load, since the outer side of the carcass ply or the inner side of the carcass ply or the inner side and the outer side of the carcass ply are covered with a reinforcing layer, the sidewall is increased. The strength of the upper carcass ply prevents the upper part of the sidewall from bursting or makes the upper part of the sidewall the starting point of tire bursting, prolonging the service life of the tire.

Description of drawings

Below in conjunction with accompanying drawing, specific embodiment of the present invention is described in further detail, wherein:

Fig. 1 is a structural schematic diagram in the prior art;

Fig. 2 is the structural representation of the first embodiment of the present invention;

Fig. 3 is the structural representation of the second embodiment of the present invention;

Fig. 4 is a schematic structural diagram of a third embodiment of the present invention.

detailed description

2 to 4 show three embodiments of the present invention.

Example 1:

As shown in Figure 2, a carcass-reinforced tire includes a crown 1, a tire shoulder 2, a carcass steel ply 3, a sidewall 4 and a bead 5, and a reinforcement is provided outside the carcass steel ply 3. Layer 6, with a thickness of 0.5~2.5mm, covers the area from the tire shoulder to 1/5 of the height of the tire section. When the tire is under high pressure, high load or impact load, due to the function of the reinforcing layer 6, the strength of the carcass ply on the upper part of the sidewall is enhanced, thereby preventing the upper part of the sidewall from bursting or making the upper part of the sidewall the starting point of tire bursting .

Example 2:

As shown in Figure 3, a carcass-reinforced tire includes a crown 1, a tire shoulder 2, a carcass steel ply 3, a sidewall 4 and a bead 5, and a reinforcement is provided inside the carcass steel ply 3. Layer 7, with a thickness of 0.5~2.5mm, covers the area from the tire shoulder to 3/5 of the height of the tire section. When the tire is under high pressure, high load or impact load, due to the function of the reinforcing layer 7, the strength of the carcass ply on the upper part of the sidewall is enhanced, thereby preventing the upper part of the sidewall from bursting or making the upper part of the sidewall the starting point of tire bursting .

Example 3:

As shown in Figure 4, a carcass-reinforced tire includes a crown 1, a tire shoulder 2, a carcass steel ply 3, a sidewall 4 and a bead 5. There is a layer of reinforcing layers 6 and 7 with a thickness of 0.5 to 2.5mm, and the coverage area is from the tire shoulder to 1/2 of the height of the tire section. When the tire is under high pressure, high load or impact load, due to the effect of reinforcing layers 6 and 7, the strength of the carcass ply in the upper part of the sidewall is enhanced, thereby avoiding the upper part of the sidewall from bursting or making the upper part of the sidewall become the cause of tire bursting starting point.

The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the scope of knowledge of those skilled in the art.

Claims (4)

1. A carcass-reinforced radial tire, comprising a crown (1), a tire shoulder (2), a carcass steel wire ply (3), a sidewall (4) and a bead (5), characterized in that: Reinforcing layers (6, 7) are provided on the outer side of the carcass steel cord layer (3) or the inner side of the carcass steel cord layer (3) or on the inner and outer sides of the carcass steel cord layer (3). 2. The carcass-reinforced radial tire according to claim 1, wherein the reinforcing layer is composed of a composite of fiber and rubber, and has a thickness of 0.5-2.5mm. 3. The carcass-reinforced radial tire according to claim 2, characterized in that: the reinforcing layer is 1-6 layers. 4. The carcass-reinforced radial tire according to claim 2, characterized in that: the reinforcing layer covers an area from the tire shoulder to 1/5-3/5 of the height of the tire section.