WO2004062947A1

WO2004062947A1 - Non-pneumatic tire

Info

Publication number: WO2004062947A1
Application number: PCT/CN2004/000001
Authority: WO
Inventors: Jinzheng Zhao; Fa Wang
Original assignee: Jinzheng Zhao; Fa Wang
Priority date: 2003-01-16
Filing date: 2004-01-02
Publication date: 2004-07-29
Also published as: CN1550358A

Abstract

A non-pneumatic tire includes an annular carcass, which has multiple air chambers. Such a carcass is made of high intensity and high resilient elastomeric material having air chamber, which can endure heavy load as designed. There are also multiple air chambers in the crown, which comprise lots of connected cup-shaped rubber element, the opening of that cup insert in the corresponding groove of the carcass and secure to it, so make each chamber closed and separated. The elastomeric material of crown is relatively flexible hich can reduce vibration with the closed air chamber. Compare with the existing tire, it has advantages in road surface grasp power, explosion proof, leak-proof properties, safe and vibration reducing features, stability in steering, comfortability for taking, durability, and low operating cost.

Description

Airless tire

Technical field

The invention relates to a tire for a vehicle, in particular to a pneumatic tire.

Background technique

The development of tires from solid tires to inflatable tires has promoted the advancement of society and made a huge contribution to the world's economic prosperity. However, inflatable tires are prone to leaking and flat tires, especially in the development of highways. Fatal accidents occur frequently, and some advanced countries have spent huge amounts of money to develop a variety of safety tires, which can be divided into two categories in terms of structure: self-sealing and rigid support. The self-sealing type is to inject a sufficient amount of sealant into the tire cavity or sealing layer. When the tire leaks, the sealant will flow into the leaking hole and block the hole. For example: Tiger brand Paw Nail Gar d tires produced by Michelin of France are representative; rigid support type is to strengthen the sidewall and cavity 'increase support, so that the tire can continue to run temporarily after pressure loss. For example: The Eagle E M T series produced by Goodyear Company in the United States is the representative. These manufacturers are compulsorily or recommended to install a computer intelligent monitoring device in these tires, and a warning can be issued after a pressure loss. They can barely travel for some distance by self-sealing agent or rigid support devices, generally 50-80 kilometers. Avoid car accidents. However, it is expensive, cannot be used by ordinary consumers, and can not fundamentally prevent puncture and air leakage. Developers have long been engaged in research on the safety of tires, and have invented the "inflatable double-layer cavity tires", the patent number is 00263063. X. Although this tire can prevent puncture and air leakage. However, its cavity layer and crown cavity layer must be vulcanized and then synthesized. In the secondary vulcanization process, because the high pressure cannot be applied, the crown and the carcass are not firmly combined, and there is a detachment phenomenon at high speeds, and the quality is difficult to guarantee.

Summary of the Invention

The present invention is to provide a high-quality, non-air-pressure tire that can prevent puncture and prevent air leakage, has good elasticity, cushions and shocks, provides comfortable riding, stable operation, and low rolling resistance.

The present invention adopts the following technical scheme: the carcass is made with multiple air chambers, and there are well-shaped grooves around the air chambers; the tire crown is vulcanized under high pressure to form a column-shaped "bridge" formed by a plurality of rubber cups, The mouth of the cup is inserted into the corresponding groove of the carcass, and it is poured with high elastic polyurethane adhesive to make it firmly combine with the carcass to form a closed Air chamber. There are longitudinal grooves and horizontal grooves between the air chamber and the air chamber. This extremely flexible "bridge" supports the vehicle

60% pressure, the enclosed air chamber under the "bridge" supports the vehicle 40% pressure. Because when the air chamber is under pressure, its volume shrinks and the air pressure rises. The higher the pressure, the higher the pressure rise. When not under pressure, the air chamber returns to its original volume. There is no air pressure and no air leakage. It does not hinder driving even if it penetrates through several air chambers.

Materials and processes adopt new nano materials and new formulas to meet the needs of different parts of the tire, making airless tires more stable and smoother during driving, and the flexion of the carcass can always be kept within the design allowable range, reducing Rolling resistance, running lighter.

Compared with the prior art, the present invention has the following advantages:

'1. Good safety performance: As a result of adopting the above technical solution, instead of relying on air pressure to fill the vehicle to support the weight of the vehicle, new structures and formulas are used to make highly flexible "bridges" and closed air chambers to support the vehicle. Weight, so there is no concern about flat tires and air leaks. It is safe and can save the cost of tire repair, improve the efficiency of vehicle use, and avoid traffic accidents caused by overturned people.

2. Good smoothness and smoothness: The tire crown of the present invention has no buffer layer, ply layer, belt layer, steel cord and other structures. The crown profile is flat and wide, thin and soft, the surface rigidity is small, and the adhesion to the road surface Strong. There is no hard trembling on rough rocky roads, cushioning and shock absorption, smoothness, and smoothness.

3. Good braking performance: It can be made into a smaller flat rate without the fear of dying out. The rim and brake disc can be enlarged, which will save effort and be more effective when braking. At the same time, the tire crown is soft and has deep vertical grooves and horizontal grooves. It has strong adhesion to the ground. No matter it is muddy or wet oil roads, it is not easy to produce side slip and "water skiing", and the braking performance is good.

4. Long service life: due to the change of the crown profile, the relative increase in the ground contact area, and the reduction of ground pressure, coupled with the special structure of the carcass, the crown is evenly pressed, and the crown surface is vulcanized under high pressure. Rubber The molecular structure is tight, and there is no internal stress that is taut like a pneumatic tire, and it is extremely wear-resistant; whether it is under no load or heavy load, its side deflection can always be maintained within the range allowed by the design. It is not easy to produce a "standing wave" phenomenon at high speeds, and even if there is a momentary internal stress, it is accepted and digested by the grooves of the tire crown. Therefore, the heat generation is low, the colloid is not easy to age, and the service life is more than twice that of existing tires. 5. Low manufacturing cost: Due to the simple process, the skeleton material is not complicated, the manufacturing cost is lower than that of the pneumatic tire, the market competitiveness is strong, and it is easy to promote.

BRIEF DESCRIPTION OF THE DRAWINGS

The detailed drawings of the example of the present invention are further detailed: ''

FIG. 1 is a front view of the present invention;

Figure 2 is a top view;

Fig. 3 is a sectional view taken along A-A in Fig. 1.

In the example shown in Figs. 1, 2, and 3, the carcass 1 has 36 x 4 air chambers 3 (see Figs. 1 and 3). The crown 2 is composed of 4 chain-shaped "bridges" composed of rubber cups, each chain-shaped "bridge" is composed of 36 square rubber cups 4 connected by a connecting band 5 in a circle, and the square rubber cups are inserted into the corresponding wells of the carcass. On the groove, the rubber cup forms a closed crown air chamber 4, and there is a horizontal groove 6 and a vertical groove 7 between the air chamber and the air chamber to isolate each other. There is a non-slip pattern on the crown 8. There are 36 X 4 crown air chambers throughout the crown.

When the vehicle using the present invention is driving, the weight of the vehicle is pressed on the rubber cup, the air chamber in the cup is compressed, the volume is reduced, the air pressure is increased, and it cooperates with a highly elastic chain-like "bridge" to support the weight of the vehicle. The air chambers on the tire crown are independent and separated by grooves. When the pressure is applied, the internal stress will not be transmitted and "stacked", so there is no obvious "standing wave" phenomenon at high speed, and the heat generation is low.

The invention is suitable for the tires of engineering vehicles, agricultural vehicles, trucks, cars, motorcycles, bicycles, bicycles and other vehicles.

Claims

Claim

1. An airless tire having a circular carcass, which is characterized in that the carcass (1) has multiple air chambers (3), the outer edge of the carcass has a crown (2) connected to it, A plurality of air chambers (4) are formed in the chain-like "bridge" of the tire crown, and each air chamber has a longitudinal groove (7) and a horizontal groove (6) separated from each other.

2. The pneumatic tire according to claim 1, characterized in that the air chamber (3) on the carcass can be one or more layers.

3. The pneumatic tire according to claim 1, characterized in that the air chamber (3) on the carcass can be circular, square, cylindrical or any geometric shape.

4. The pneumatic tire according to claim 1, characterized in that the air chamber (4) of the tire crown can be one or more layers.

5. The pneumatic tire according to claim 1, characterized in that: the air chamber (4) of the tire crown can be round, square, cylindrical or any geometric shape.