WO2006060966A1 - Multiple chambered anti-explosive safety tyre and the special inflate device - Google Patents

Abstract

A multiple chambered anti-explosive safety tyre and the special inflate device. Those chambers are partitioned in the interior of the inner tyre by rubber wall, and in uniformity state in circumferential direction and axial direction. Each chamber is charged to be inflated by a needle one-way valve independently. Since a single air chamber is divided into multiple chambers, it eliminates such a dangerous state of the all tyre’s blowout as the result of partial burst on the tire caused by stress concentration or distortion. Moreover, a special inflate device can make all of the air-chambers be inflated simultaneously, the inflate process is simple and efficiency.

Description

 Explosion-proof safety tire and inflator with multiple air chambers

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety tire for a vehicle, and more particularly to an explosion-proof safety tire having a plurality of air chambers. The present invention also relates to a device for inflating a tire having a plurality of air chambers.

BACKGROUND OF THE INVENTION At present, due to the continuous improvement and improvement of the structure and performance of automobiles, the speed is higher and higher, and correspondingly, the durability and safety of automobile tires are put forward higher requirements. The most widely used motor vehicles are pneumatic tires. During the running of the motor vehicle, the pneumatic tire may have a very large stress concentration and deformation locally in the carcass due to overload deformation, friction heat generation, fatigue damage, and collision with bad objects such as sharp edges and fragments of the road surface. If the stress of the tire material exceeds its limit value, the part will be torn by the high pressure gas in the tire, the carcass suddenly bursts, and the gas in the tire is instantaneously exhausted, causing the vehicle to suddenly run out of control, which may cause a traffic accident.

 For this inherent defect of pneumatic tires, a tubeless leak-proof tire has been developed. This kind of tire passes through the airtight layer in the tire body, which can prevent the tire from being leaked by the iron nail and other objects, but it cannot avoid the damage due to overload deformation, friction heat generation, fatigue damage and sharp edges and fragments. The collision of the object causes a localized very large stress concentration and a sudden explosion of the overall tire occurs.

 Chinese patent CN2561612Y discloses a pneumatic tire with multiple air chambers, which divides the carcass into 2-4 closed air chambers along the direction of the axle, so that other air chambers can continue to work after the individual air chambers are broken. It can reduce the danger caused by local rupture of the carcass to a certain extent. However, such an inflated tire cannot avoid the sudden uneven force of the tire, and it is easy for the motor vehicle to run off the accident.

 1

Confirmation All of them still have a large impact, and they must be supplemented or replaced in a short period of time. Therefore, this technical solution does not completely solve the problems caused by puncture or deflation.

 In view of the overall bursting hazard of existing pneumatic tires, it is necessary to further optimize the interior of the tire to design a safety pneumatic tire that can completely prevent the tire from bursting suddenly, can be operated long, and is free of repair. Summary of the invention

 In order to solve the above technical problems, the present invention provides a tire that can be mounted on a motor vehicle or can be mounted on other vehicles such as an airplane and has a plurality of air chambers, including a tread and a carcass, among which The air chambers are located in the tire body and are separated from each other by a rubber material, and the plurality of air chambers divide the tire body cavity into a plurality of space portions in two directions, that is, in the circumferential direction of the tire and in the axial direction of the tire. The carcass is divided into a plurality of spatial portions.

 In the above tires, the inner cavity of the tire is divided into a plurality of small air chambers which are substantially independent of each other. In this way, when the tire is subjected to local stress concentration due to overload deformation, frictional heat generation, fatigue damage, and collision with bad objects such as sharp edges and fragments of the road surface, and the individual small air chambers are broken and leaked, energy is obtained from the broken small air chamber. Release without causing the tire to burst as a whole. Since the number of air cavities is large and can be evenly arranged in the carcass, even if the individual air cavities have been broken, and the other air cavities still maintain a certain air pressure, there is almost no influence on the overall performance of the tire, and the few air cavities that are broken do not have to be immediately Repaired, the vehicle can run normally.

Theoretically, in the present invention, the more the number of small air cavities in the tire carcass, the more advantageous it is to improve the safety of the tire, and each of the small air cavities may be of equal volume or may have different sizes. However, in view of the practicality of the processing preparation, it is preferable that in the tire body of the tire of the present invention, the small air chambers are substantially uniformly distributed in the circumferential direction of the tire, and 10-200 is distributed in each circumferential direction. Further, the small air chambers are also substantially evenly distributed along the axial direction of the vehicle, and there are 2-50 air chambers distributed in the direction of each axle. That is, the number of air cavities in the tire is preferably 20 to 10,000.

 More preferably, there are 20-100 air chambers distributed in each circumferential direction, and 2- 20 air chambers are distributed in each axle direction. That is, the number of air cavities in the tire is more preferably 40 to 2,000.

 Further preferably, there are 20 to 60 air chambers distributed in each circumferential direction, and 2 to 10 air chambers are distributed in the direction of each axle. That is, the number of air chambers in the tire is further preferably 40 to 600.

 In a particular embodiment of the invention, each of the air chambers is independently hermetically sealed, and each of the air chambers is provided with a needle-type air valve for inflation at its end adjacent the wheel rim of the motor vehicle. One end of the needle valve is connected to each air chamber, and the other end is placed directly outside the rim through the rim. When inflating, each needle type valve can be connected by a pipe. Under the action of air pressure, each needle type valve is opened at the same time, and each air chamber is simultaneously inflated; when the inflation is completed, the needle type air dam is automatically sealed, and each air cavity forms a closed force. Unit body. This ensures that the inflation process is efficient, fast, and simple, while the pressure in each chamber is equal and the load is uniform to ensure a reasonable service life of the tire. In addition, the needle valve used has an unloading function to facilitate the exhaust of the tire when an abnormal situation occurs.

 In order to inflate the tire of the above specific embodiment, the present invention also devises a device for inflating a tire having a plurality of air chambers, the device comprising an inflation duct, and a plurality of needle nozzles arranged in sequence on the inflation duct And the valve, when inflating, the needle type air nozzle of the inflation duct is docked with the needle type air valve on the tire air chamber, so that the plurality of air chambers of the tire can be simultaneously inflated.

In another embodiment of the invention, each of the air chambers is also independently sealed, and each of the air chambers is also provided with a needle type valve for inflation at its end near the wheel rim of the motor vehicle, but in the scheme Further, the utility model further comprises a gas pipe and a valve, wherein one end of each needle type gas gang is connected to the end of each gas chamber, and the other end is connected to the gas valve through a gas pipe, that is, the other end of each needle type valve is connected to the gas line. On the trachea, the gas pipe can be placed in the rim of the wheel of the motor vehicle. Through the valve, each air chamber can be simultaneously inflated; after the inflation is completed, the air chamber is automatically sealed by the needle valve.

 In the above two embodiments of the present invention, the inner cavity of the tire carcass is divided into a plurality of completely independent closed air chambers, each of which is a mutually independent force unit.

 In still another specific embodiment of the present invention, each of the air chambers is provided with ventilation holes, and each air chamber is not provided with a needle-shaped gas, and only a ventilation hole is provided, that is, the air chambers are not completely sealed. However, except for the ventilation holes, the air chambers are independent. When inflated, the gas gradually enters the air chambers through the small pores of each gas passage after entering the valve, and the air pressure in each air chamber is equal. In the process of using the tire, if the carcass blasting occurs, it must be damaged in a weak part and then partially break through, and then tear around the broken point, thereby bursting as a whole; and the tire carcass of this embodiment, due to the gas Separation of the cavity, when a certain air cavity is broken, although the gas in the air cavity is instantaneously exhausted, other air chambers can only be slowly vented through the small holes of the ventilation, and at the same time, the reinforcing effect of the rubber separating material, the air pressure is decomposed, the gas The leakage is a relatively slow process, which prolongs the process of deflation, prevents the entire carcass from bursting, and ensures safe driving.

 The invention further optimizes the internal structure of the tire, and divides the single integral air cavity into a plurality of independent small closed air chambers, so that the crack of the carcass due to local stress concentration and deformation does not expand to the entire carcass, thereby avoiding the whole tire. Burst, even if individual air chambers rupture and deflate, it has almost no impact on the overall performance of the tire. Other intact air chambers can maintain the normal running of vehicles such as vehicles. In this way, it is not necessary to repair the tire due to cracking and deflation during the entire life of the tire, and the safety and durability of the tire are greatly improved. In addition, the inflating system provided by the present invention can realize one-time simultaneous inflation of each air chamber, and the inflation process is simple and efficient.

The invention will be described in detail below with reference to the drawings and specific embodiments. However, these specific embodiments are not intended to limit the invention. On the basis of the present invention, those skilled in the art are completely Corresponding improvements or changes may be made without creative effort, but such modifications or changes are still within the scope of the invention. DRAWINGS

 1 is a front elevational view, partly in section, of a multi-air cavity tire according to an embodiment of the present invention; FIG. 2 is a left side elevational view of the multi-air cavity tire of the embodiment shown in FIG. A partial enlarged view of a multi-air cavity tire inflation structure in an embodiment;

 Figure 4 is a front elevational view, partly in section, of a multi-air tire in accordance with another embodiment of the present invention; Figure 5 is a partial cross-sectional left side view of the multi-air tire of the embodiment of Figure 4;

 Figure 6 is a partial enlarged view of the multi-cavity tire inflation structure in the embodiment shown in Figure 4;

 Figure 7 is a schematic view showing the structure of the inflation duct used in the embodiment shown in Figure 4;

 Figure 8 is a partial enlarged view of the structure of the inflation catheter used in the embodiment shown in Figure 4. detailed description

Referring to Figures 1, 2, and 3, the tire carcass (1) is composed of an infinite number of independent air chambers (2), and the air chambers (2) are evenly arranged in the tire body in the circumferential and axial directions, and the air chambers ( 2) separated by rubber material, each air chamber (2) is provided with a needle type valve (3) near one end of the rim (6), and the needle type gas is connected by a gas pipe (4) in the rim (6) The valve (3) communicates with the valve (5). Through the valve (5), the gas pipe (4), and the needle valve (3), each air chamber can be simultaneously inflated. Under the action of air pressure, each needle valve is simultaneously opened to ensure equal pressure of each air chamber (2). When the air pressure reaches the set value, the inflation is completed, and the needle valve (3) is automatically closed, so that the air chambers (2) are completely sealed to become independent force units. As shown in Figures 4-8, a schematic structural view of another embodiment is given. The tire carcass (1) is also composed of an infinite number of independent closed air chambers (2), and the inflator is a needle type valve (3). And a separate inflation duct (7), the needle valve (3) - the end is connected to each air chamber (2), the other end is directly placed outside the rim (6), and the inflation duct (7) is arranged in order a plurality of needle-type nozzles (8) are provided with a valve (5). When inflating, the needle-type nozzles (8) on the inflation duct (7) are docked with the needle-shaped gas chamber (3), and the gas is supplied through the valve (5). Under the action of air pressure, each needle type valve is opened at the same time, which can realize the simultaneous inflation of each air chamber. After the inflation is completed, the needle valve (3) is automatically closed, so that the air chambers (2) are completely sealed to become independent force units.

 Through the above technical means, the tire is divided into a plurality of independent force unit bodies. If the tire is in the process of running, if the tire is damaged by overload deformation, friction heat generation, fatigue damage and bad objects such as sharp edges and fragments of the road surface, Local stress concentration and strong deformation will cause individual air chambers to rupture and leak energy, and energy will be released without causing the tire to burst. Since the number of air cavities is large and evenly arranged in the carcass, even if the individual air cavities have been broken, and the other air cavities maintain a certain air pressure, there is almost no influence on the overall performance of the tire, and it is not necessary to repair a few air cavities that are broken. The vehicle can run normally.

 The present invention is not limited to a tubeless pneumatic tire, and is equally applicable to a vehicle inner tube, and it is within the scope of the invention as long as the tire structure of the above-described numerous inner cavities and the corresponding tire inflation method are employed.

Claims

Rights request A tire mounted on a motor vehicle having a plurality of air cavities, comprising a tread and a carcass, wherein the plurality of air cavities are located in the carcass and are separated from each other by a rubber material. Further, the plurality of air chambers divide the carcass into a plurality of space portions in a circumferential direction of the tire and in an axial direction of the tire. 2. The tire according to claim 1, wherein said plurality of air chambers are substantially evenly distributed in said tire body along a circumferential direction of said tire, and each of said circumferential directions is distributed 10-200 air chambers. 3. The tire according to claim 2, wherein the plurality of air chambers are substantially evenly distributed in the tire body in the vehicle axial direction, and each of the axle directions is distributed 2- 50 of the air chambers. A tire according to claim 3, wherein 20 to 100 of said air chambers are distributed in each circumferential direction, and 2 to 20 air chambers are distributed in the direction of each axle. A tire according to claim 4, wherein 20 to 60 said air chambers are distributed in each circumferential direction, and 2 to 10 of said air chambers are distributed in the direction of each axle. 6. The tire of claim 1 wherein each of said air chambers is independently sealed and each of said air chambers is provided with a needle for inflation at an end adjacent the wheel rim of the motor vehicle. Air valve. The tire according to claim 6, wherein the tire further comprises a gas pipe and a valve, wherein one end of the needle valve is connected to the end of the gas chamber, and the other end is Connected to the valve through the gas pipe. The tire according to claim 7, wherein the gas pipe is disposed in a rim of a wheel of a motor vehicle. 9. The tire of claim 1 wherein each of said air chambers has a venting aperture. 10. A device for inflating a tire having a plurality of air chambers, the device comprising an inflation catheter, a plurality of needle nozzles and a valve arranged in sequence on the inflation catheter, and a needle type of the inflation catheter when inflated The gas nozzle is docked with the needle valve on the tire to achieve simultaneous inflation of the plurality of air chambers of the tire.