WO2021196805A1

WO2021196805A1 - Single-side double-sidewall safety explosion-proof tire

Info

Publication number: WO2021196805A1
Application number: PCT/CN2020/142522
Authority: WO
Inventors: 王�锋; 张正伟; 滕雷; 陈雪梅; 朱丽艳; 陈东; 杨宝忠; 鲁言宏
Original assignee: 山东玲珑轮胎股份有限公司
Priority date: 2020-04-03
Filing date: 2020-12-31
Publication date: 2021-10-07
Also published as: CN111439072A

Abstract

A single-side double-sidewall safety explosion-proof tire, comprising a hub (10); a double-sidewall (50) is provided at either side of the hub (10), and the double-sidewall (50) consists of an outer sidewall A (51), an outer sidewall B (52), an inner sidewall A (53), and an inner sidewall B (54); each of the outer sidewall A (51), the outer sidewall B (52), the inner sidewall A (53) and the inner sidewall B (54) is provided with a bead (20) inside the walls, the bead (20) is in contact with the hub (10), a crown (30) is provided in the middle of the outermost side of the hub (10), the crown (30) is formed by a tread rubber layer (31), a crown reinforcement (32) and grooves (33), the crown reinforcement (32) is covered by steel wires and nylon fibers in a circumferential direction of the tire, and carcass reinforcements (40) are provided at two sides of the crown (30); each of the inner walls of the outer sidewall A (51), the outer sidewall B (52), the inner sidewall A (53) and the inner sidewall B (54) is provided with two air-captive layers (60); when the tire is deflated, a spare rubber ring (90) is closely attached to the inner sidewall A (53) and the inner sidewall B (54), and short-distance driving can be continued, so that when a problem of air leakage or a blowout occurs to a tire, it is still possible to drive smoothly, improving safety.

Description

Safety explosion-proof tire with single side double sidewall

Technical field

The invention relates to the technical field of explosion-proof tires, in particular to a safety explosion-proof tire with single side double sidewalls.

Background technique

Once the tire bursts suddenly during high-speed driving, the consequences will be unimaginable. According to statistics in 2006, car crashes and fatalities caused by a sudden puncture during high-speed driving were listed as the top highway accidents, accounting for 49.81% of the fatalities in highway accidents, and the injured accounted for 63.94%. Fatigue driving and speeding have become the biggest killers of highway traffic accidents. According to a recent survey by the American Society of Automotive Engineers, 195,000 traffic accidents in the United States each year are caused by flat tires.

The scientific name of run-flat tires is "Run Flat Tire". The English abbreviation RSC. The sidewall of the inflated tire is the main part that supports the weight of the vehicle, especially for some tires with a large aspect ratio (the aspect ratio is the ratio of the tire height to the width). Causes the instantaneous cracking of the tire wall, so that the tire loses its supporting force instantly, causing the vehicle's center of gravity to change immediately, especially for front-wheel drive vehicles The front tire blows out, and the shift in the center of gravity immediately after the tire blows is likely to cause the vehicle to lose control.

technical problem

Existing automobile tires are basically made of rubber as a whole. Although in the process of making tires, some tires have some tensile and explosion-proof objects such as steel wires added to the rubber, but the effect is not obvious, especially for foreign objects pierced into the tire. The puncture caused later has little effect.

In view of the shortcomings of the existing device, a safety explosion-proof tire with single-sided double sidewalls is now provided.

Technical solutions

The purpose of the present invention is to provide a single-sided double sidewall safety explosion-proof tire to solve the above-mentioned problems in the background art.

In order to achieve the above objectives, the present invention provides the following technical solutions:

A single-sided double sidewall safety explosion-proof tire, comprising a wheel hub, one side of the wheel hub has double sidewalls, and the double sidewalls are composed of an outer sidewall A, an outer sidewall B, an inner sidewall A, and an inner sidewall B Composition, the outer sidewall A, the outer sidewall B, the inner sidewall A, and the inner sidewall B are all equipped with beads in the sidewalls, the beads are in contact with the hub, and the outermost center of the hub is provided with a tire The crown is composed of a tread rubber layer, a crown reinforcement and a groove, the crown reinforcement is covered by steel wire and nylon fibers in the tire circumferential direction, and both sides of the crown are provided with carcass reinforcements The inner walls of the outer sidewall A, the outer sidewall B, the inner sidewall A, and the inner sidewall B are provided with two air-retaining layers, and the inner sidewall A and the inner sidewall B are provided with a buffer layer A, so The inner wall of the buffer layer A is provided with a buffer layer B, and a spare rubber ring is provided on the outer wall of the hub. The spare rubber ring is composed of a spare rubber ring body, a fixing hole, and a screw. The hole is fixed on the outer wall of the hub.

As a further solution of the present invention: the outer sidewall A, the outer sidewall B, the inner sidewall A, and the inner sidewall B all extend radially outward from the bead to the crown, and the outer sidewall A, the outer sidewall The side B, the inner sidewall A, and the inner sidewall B extend from the tire shoulder in the tire radial direction, and the outer sidewall A, the outer sidewall B, the inner sidewall A, and the inner sidewall B share the same tire running surface.

As a further solution of the present invention: a plurality of air cavities are formed between the outer sidewall A and the outer sidewall B and the inner sidewall A and the inner sidewall B respectively, and the number of the air cavities is not less than 3, so The width at the center of the air cavity should be no less than 5 mm, and the inner wall of each air cavity has a gas-retaining layer.

As a further solution of the present invention: the buffer layer A and the buffer layer B are provided with several cavities, the inner wall of each cavity has a gas-retaining layer, and the number of the cavities is not less than 3, so The width at the center of the cavity should be no less than 5mm.

As a further solution of the present invention: the air-retaining layer in the outer sidewall A and the outer sidewall B extends between the carcass reinforcements.

As a further solution of the present invention, the bead includes an outer bead and an inner bead, and the size of the outer bead in the vertical direction is larger than the size of the inner bead in the vertical direction.

As a further solution of the present invention: the same number of carcass reinforcements in the outer sidewall A and the outer sidewall B extend therein, and the same number of carcass reinforcements in the inner sidewall A and the inner sidewall B Extending within it, the number of layers is at least one.

As a further solution of the present invention: the hardness of the rubber used for the inner sidewall A and the inner sidewall B is greater than the hardness of the rubber used for the outer sidewall A and the outer sidewall B. The roundness of the outer sidewall A and the outer sidewall B The arc radius is smaller than the arc radius of the inner sidewall A and the inner sidewall B.

As a further solution of the present invention, the size in the vertical direction of the outer bead is equal to the size in the vertical direction of the inner bead.

As a further solution of the present invention: the size in the vertical direction of the outer bead is smaller than the size in the vertical direction of the inner bead.

Beneficial effect

Compared with the prior art, the beneficial effect of the present invention is that the design of the present invention is reasonable, and multiple air cavities are formed between the outer sidewall A and the outer sidewall B and the inner sidewall A and the inner sidewall B respectively. The number of cavities is no less than 3, the width of the center of the air cavity should be no less than 5mm, and the inner wall of each air cavity has an air-retaining layer. Once the tire is punctured by a nail or sharp object, first The crown reinforcement and carcass reinforcement will protect the tire from damage and air loss. When the crown reinforcement and carcass reinforcement are pierced, a single air cavity will rupture, because the inner wall of each air cavity has an air-retaining layer , Only a single air cavity is leaked. At the same time, there are several cavities inside the buffer layer A and the buffer layer B to further ensure that the inflated tire will not flatten. The impact of the tire will be small, and normal driving can continue. After a long nail or sharp object is pierced, the air cavity and cavity are punctured, the tire is deflated, and the spare rubber ring is close to the inner sidewall A and the inner sidewall B. Short-distance driving can be continued to realize when the tire leaks. Or even after a flat tire problem, it can still drive smoothly, which improves safety.

Description of the drawings

FIG. 1 is a schematic cross-sectional structure diagram of Embodiment 1 of the present invention.

FIG. 2 is a schematic partial cross-sectional structure diagram of Embodiment 1 of the present invention.

Fig. 3 is a cross-sectional view of the tire according to the first embodiment of the present invention.

Fig. 4 is a schematic front view of the structure of the first embodiment of the present invention.

Fig. 5 is a cross-sectional view of a tire according to the second embodiment of the present invention.

Fig. 6 is a cross-sectional view of a tire according to the third embodiment of the present invention.

Among them: wheel hub 10, bead 20, tire crown 30, carcass reinforcement 40, double sidewall 50, air-retaining layer 60, buffer layer A70, buffer layer B80, spare rubber ring 90;

Outer bead 21, inner bead 22;

Tread rubber layer 31, crown reinforcement 32, groove 33;

Outer sidewall A51, outer sidewall B52, inner sidewall A53, inner sidewall B54

Spare apron body 91, fixing hole 902, screw 903.

Embodiments of the present invention

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Example 1

Referring to Figures 1-4, in an embodiment of the present invention, a single-sided double sidewall safety explosion-proof tire includes a wheel hub 10 having a double sidewall 50 on one side, and the double sidewall 50 is formed by an outer tire Side A51, outer sidewall B52, inner sidewall A53, and inner sidewall B54 are composed to improve the explosion-proof capability of the tire. The outer sidewall A51, outer sidewall B52, inner sidewall A53, and inner sidewall B54 Each is equipped with a bead 20, the bead 20 is in contact with the wheel hub 10 for fixing the tire to the rim 10, the outermost center of the wheel hub 10 is provided with a tire crown 30, the tire crown 30 is made of a tread rubber layer 31. The crown reinforcement 32 is composed of a tire crown reinforcement 32 and a groove 33. The crown reinforcement 32 is covered by steel wires and nylon fibers in the tire circumferential direction to enhance the strength of the tire. The tire crown 30 is provided with carcass reinforcements 40 on both sides To prevent the tire from being punctured, the inner wall of the outer sidewall A51, the outer sidewall B52, the inner sidewall A53, and the inner sidewall B54 are provided with two air-retaining layers 60 to prevent air leakage after the tire is punctured. A buffer layer A70 is provided on the inner side of the side A53 and the inner sidewall B54. The inner wall of the buffer layer A70 is provided with a buffer layer B80 to further improve the tire flattening after a puncture. The outer wall of the hub 10 is provided with a spare rubber ring 90 for use After the tire is completely deflated, it is used as a spare tire. The spare rubber ring 90 is composed of a spare rubber ring body 91, a fixing hole 902, and a screw 903. The spare rubber ring body 91 is fixed to the hub by the screw 903 passing through the fixing hole 902 10 on the outer wall.

The outer sidewall A51, the outer sidewall B52, the inner sidewall A53, and the inner sidewall B54 all extend radially outward from the bead 20 to the crown 30, the outer sidewall A51, the outer sidewall B52, and the inner sidewall The side A53 and the inner sidewall B54 extend from the tire shoulder in the tire radial direction. The outer sidewall A51, the outer sidewall B52, the inner sidewall A53 and the inner sidewall B54 share the same tire running surface to enhance the strength of the tire.

A plurality of air cavities are formed between the outer sidewall A51 and the outer sidewall B52 and the inner sidewall A53 and the inner sidewall B54 respectively. The number of the air cavities is not less than 3, and the width of the center position of the air cavity should be No less than 5mm, the inner wall of each air cavity is provided with a layer of air-retaining layer 60 to prevent a single air cavity from rupturing and air leakage of the tire.

The buffer layer A70 and the buffer layer B80 are provided with several cavities, the inner wall of each cavity has a layer of gas-retaining layer 60, the number of cavities is not less than 3, and the width of the center of the cavity It should be no less than 5mm to prevent the nails or sharp objects encountered by the tire from deflating.

The air-retaining layer 60 in the outer sidewall A51 and the outer sidewall B52 extends between the carcass reinforcement 40 to increase the anti-breaking ability of the air-retaining layer 60.

The bead 20 includes an outer bead 21 and an inner bead 22, and the size of the outer bead 21 in the vertical direction is larger than the size of the inner bead 22 in the vertical direction.

The outer sidewall A51 and the outer sidewall B52 have the same number of layers of carcass reinforcements 40 extending therein to increase the strength of the outer sidewall A51 and the outer sidewall B52. The inner sidewall A53 and the inner sidewall B54 are The same number of layers of the carcass reinforcement 40 extends therein to increase the strength of the inner sidewall A53 and the inner sidewall B54, and the number of layers is at least one.

The hardness of the rubber used for the inner sidewall A53 and the inner sidewall B54 is greater than the hardness of the rubber used for the outer sidewall A51 and the outer sidewall B52 to prevent the nails or sharp objects encountered by the tire from deflating.

The arc radius of the outer sidewall A51 and the outer sidewall B52 is smaller than the arc radius of the inner sidewall A53 and the inner sidewall B54.

Example 2

The size of the outer bead 21 in the vertical direction is equal to the size of the inner bead 22 in the vertical direction.

Example 3

The size of the outer bead 21 in the vertical direction is smaller than the size of the inner bead 22 in the vertical direction.

The working principle of the present invention is: when the single-sided double sidewall safety explosion-proof tire is used, the tire is first inflated. After the inflation is completed, the outer sidewall A51 and the outer sidewall B52 are respectively connected to the inner sidewall A53 and the inner sidewall. A plurality of air cavities are formed between B54, the number of the air cavities is not less than 3, the width of the center position of the air cavities should be not less than 5mm, and the inner wall of each air cavity has a layer of gas retention layer 60, when Once the tire is punctured by nails or sharp tools, first, the crown reinforcement 32 and the carcass reinforcement 40 will protect the tire from damage and air loss. When the crown reinforcement 32 and the carcass reinforcement 40 are pierced, it will cause A single air cavity is ruptured. Since the inner wall of each air cavity has an air-retaining layer 60, only a single air cavity is leaked. At the same time, there are several cavities inside the buffer layer A70 and the buffer layer B80 to further ensure that the inflated tire is not flat. The impact of the tire will be small, and you can continue to drive normally. Once the tire is punctured by multiple long nails or sharp objects, the air cavity and cavity are punctured, and the tire will deflate, and the spare rubber ring 90 will be close to the inner tire. The side A53 and the inner sidewall B54 can continue short-distance driving, so that even if the tire has a leak or a puncture problem, it can still drive smoothly and improve safety.

Industrial applicability

For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description, and therefore it is intended to fall within the claims. All changes within the meaning and scope of the equivalent elements of are included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

In addition, it should be understood that although this specification is described in accordance with the implementation manners, not each implementation manner only includes an independent technical solution. This narration in the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole The technical solutions in the various embodiments can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

A single-sided double sidewall safety explosion-proof tire, comprising a wheel hub (10), the wheel hub (10) has a double sidewall (50) on one side, and is characterized in that the double sidewall (50) is formed by the outer sidewall A (51), outer sidewall B (52), inner sidewall A (53), and inner sidewall B (54), the outer sidewall A (51), outer sidewall B (52), inner sidewall Side A (53) and inner sidewall B (54) are equipped with a bead (20) in the sidewalls, the bead (20) is in contact with the hub (10), and the outermost center of the hub (10) is arranged There is a crown (30), the crown (30) is composed of a tread rubber layer (31), a crown reinforcement (32) and a groove (33), and the crown reinforcement (32) is composed of steel wire and Nylon fibers cover the tire circumferential direction, carcass reinforcements (40) are provided on both sides of the crown (30), the outer sidewall A (51), the outer sidewall B (52), and the inner sidewall A ( 53) and the inner wall of the inner sidewall B (54) are provided with two air-retaining layers (60), the inner sidewall A (53) and the inner sidewall B (54) are provided with a buffer layer A (70), so The inner wall of the buffer layer A (70) is provided with a buffer layer B (80), the outer wall of the hub (10) is provided with a spare rubber ring (90), and the spare rubber ring (90) consists of a spare rubber ring body (91) A fixing hole (902) and a screw (903) are formed. The spare rubber ring body (91) is fixed on the outer wall of the hub (10) by the screw (903) passing through the fixing hole (902).
The single-sided double sidewall safety and explosion-proof tire according to claim 1, wherein the outer sidewall A (51), the outer sidewall B (52), the inner sidewall A (53) and the inner sidewall B (54) all extend radially outward from the bead (20) to the crown (30), the outer sidewall A (51), the outer sidewall B (52), the inner sidewall A (53) and the inner side The sidewall B (54) starts from the tire shoulder and extends in the tire radial direction. The outer sidewall A (51), the outer sidewall B (52), the inner sidewall A (53), and the inner sidewall B (54) Share the same tire running surface.
The single-sided double sidewall safety and explosion-proof tire according to claim 2, wherein the outer sidewall A (51) and the outer sidewall B (52) are respectively connected to the inner sidewall A (53) and the inner sidewall. A plurality of air cavities are formed between the side B (54), the number of the air cavities is not less than 3, the width of the center position of the air cavities should not be less than 5mm, and the inner wall of each air cavity has a layer of air retention Layer (60).
The single-sided double sidewall safety explosion-proof tire according to claim 1, wherein the buffer layer A (70) and the buffer layer B (80) are provided with a plurality of cavities, and the inner wall of each cavity Each has a gas-retaining layer (60), the number of the cavities is no less than 3, and the width of the center of the cavities should be no less than 5mm.
The single-sided double sidewall safety and explosion-proof tire according to claim 3, wherein the air-retaining layer (60) in the outer sidewall A (51) and the outer sidewall B (52) extends to the carcass Between reinforcements (40).
The single-sided double sidewall safety explosion-proof tire according to claim 1, wherein the bead (20) comprises an outer bead (21) and an inner bead (22), and the outer bead (21) ) The size in the vertical direction is larger than the size in the vertical direction of the inner bead (22).
The single-sided double sidewall safety explosion-proof tire according to claim 3, characterized in that the same number of carcass reinforcements (40) in the outer sidewall A (51) and the outer sidewall B (52) are The inner sidewall A (53) and the inner sidewall B (54) extend in the same number of carcass reinforcements (40), and the number of layers is at least one.
The single-sided double sidewall safety and explosion-proof tire according to claim 3, characterized in that the hardness of the rubber used in the inner sidewall A (53) and the inner sidewall B (54) is greater than that of the outer sidewall A (51) , The hardness of the rubber used for the outer sidewall B (52), the arc radius of the outer sidewall A (51) and the outer sidewall B (52) is smaller than the inner sidewall A (53) and the inner sidewall B (54) The radius of the arc.
The single-sided double sidewall safety explosion-proof tire according to claim 6, characterized in that the size of the outer bead (21) in the vertical direction is equal to the size of the inner bead (22) in the vertical direction.
The single-sided double sidewall safety explosion-proof tire according to claim 6, characterized in that the size of the outer bead (21) in the vertical direction is smaller than the size of the inner bead (22) in the vertical direction.