JPH04212607A - Puncture preventive tool for tire for vehicle - Google Patents

Abstract

PURPOSE: To provide a device to prevent puncture of a tire which can be applied to tires of any vehicle regardless of the sort, standard, or form of the tires. CONSTITUTION: A puncture preventive device P1 is provided with a number of unit protective pieces 10 each comprising plural protective walls 11, 12, 13 made of a rigid synthetic resin overlapped with each other in a stairway shape, and a flexible support member 21 installed to respectively support the unit protective pieces 10 to be mutually bitten and overlapped for covering. Each unit protective pieces 10 is composed of the protective walls 11, 12, 13 of rectangular plate materials of specified sizes overlapped with each other in a stairway shape along the diagonal direction of the plate materials, and outer side surfaces of the protective wall 13 are welded to an outer circumferential surface of the support member 21. As a result, each unit protective piece 10 is separately supported on the support member 21, and the protective walls 11, 12, 13 of it are mutually bitten and overlapped with the protective walls 11, 12, 13 of other unit protective pieces adjacent to them on the front, back, right, or left of them.

Description

[Detailed description of the invention]

0001

[Industrial Field of Application] The present invention relates to a wheel tire (Tir).
e) A puncture (
(Puncture) related to preventive equipment, for details,
By bringing a puncture prevention device, which is made up of a plurality of unit protective pieces each having a plurality of protective walls and attached to one side of a liner-shaped support member, into close contact with the tire of the wheel, the load on the wheel or the running speed of the wheel can be reduced. A tire puncture system that flexibly adapts to tire deformation caused by impact, maintains the tire's unique shock absorption function and stable running performance, and completely prevents hazardous substances from entering through the tire.
(Puncture) This relates to a preventive device.

0002

[Prior Art] Ever since pneumatic tires were developed,
Continuous research has been conducted, and today wheel tires with excellent performance have been developed and put into practical use, and the durability of tires over their lifespan has made dramatic progress.

0003

[Problems to be Solved by the Invention] However, with regard to tire stability, although research continues to be carried out to prevent tire punctures, no effective solution has yet emerged. As a result, tires suddenly burst while the vehicle is in motion, causing serious accidents and human injury.

Therefore, in recent years, steel radial tires have been developed in which a barbed steel belt is closely attached to the tire casing to prevent punctures.

However, in this steel radial tire, the steel belt is attached to the tire casing.
Since it is integrally formed between the tread layer and the carcass layer of the casing, there is a drawback that the riding feeling is deteriorated when the vehicle is running. Another drawback is that it is not possible to completely prevent the intrusion of needle-like hazardous substances such as nails. Furthermore,
Side wall of the tire casing
There is also the drawback that there is no protection against needle-like hazards that enter through l).

[0006]Furthermore, recently, tires have been known that use carbon fiber, a strong new material, to prevent the intrusion of harmful substances such as bullets.

However, there are disadvantages in that it is not possible to completely prevent dangerous sharp metal substances that may suddenly enter the vehicle while the vehicle is in motion, and that the manufacturing cost increases, making it uneconomical for practical use. be.

[0008] Also, a band is installed between the outer casing of the tire and the inner tube.
In the United States, a tire protector that prevents hazardous substances from entering the inside of the tire by closely fitting the protector into the tire has been developed (
U. S. A) Patent Nos. 1,371,097 and 3,
No. 982,577.

However, this tire protector is simply a belt-like member with a U-shaped cross section made of flexible rubber, textiles, synthetic resin, etc.
As mentioned above, there are disadvantages in that it cannot completely prevent penetrating substances in the form of sharp metal needles, and it is not compatible with tires that are subjected to heavy loads.

[0010] United States (U.S.A.) Patent No. 1,460
, 794 No. 1,474,387 and No. 3,306,
As described in No. 331, a tube protector for automobiles is known, but in this tube protector for automobiles, the protector inserted between the tire casing and the tube (Tube) is It is thickly formed. Therefore, the amount of air to be filled in the tube is relatively reduced, and as a result, the necessary elasticity and shock absorption function of the tire cannot be properly maintained. Furthermore, since the tire itself becomes heavy, it has the disadvantage that it cannot be applied to tires for relatively light loads such as motorcycles, bicycles, and small passenger cars.

[0011] In addition, by sequentially connecting a large number of metal connecting pieces,
A "tire tube puncture prevention device" that is curved to fit closely to the outer circumferential surface of the tube and whose outer circumferential surface is covered with wrapping paper.
is described in the Korean Utility Model Publication (Publication No. 82-1288), and in this tire tube puncture prevention device, the engaging part where the metal connecting pieces are connected is easily damaged by the vibrations or shocks applied when the vehicle is running. However, once the metal connecting pieces are separated, it is difficult to connect them again. In particular, when a strong impact is applied from the outside, the end portion of the metal connecting piece deforms, the inner tube is easily damaged, and the connection of the metal pieces reduces flexibility, so the tire's unique shock absorption ability This has the disadvantage that running performance is degraded.

[0012] In order to solve these problems, the inventors of the present invention have conducted extensive research and have attempted to provide the following tire puncture prevention device.

[0013]

[Means for Solving the Problems] An object of the present invention is to provide tires for various vehicles such as tubeless tires (tires without tubes) or tube-type tires (tires with tubes), and tires for motorcycles or bicycles. All types of tires such as commercial tires etc.
It is an object of the present invention to provide a tire puncture prevention device that can be applied to tires of all vehicles regardless of their specifications and types.

Another object of the present invention is to prevent all hazards from entering the inner side of the tire through the tread portion or side wall portion, which is the entire outer peripheral surface of the vehicle tire. It is an object of the present invention to provide a puncture prevention device for vehicle tires that can completely prevent tires from bursting due to substances.

Still another object of the present invention is to provide a vehicle tire puncture preventive device that is closely attached to the inner side of the tire so as to be able to flexibly bend when the tire is deformed due to the running of the vehicle. The object of the present invention is to provide a puncture prevention device for vehicle tires that can stably maintain inherent shock absorbing power and running performance.

The object of the present invention is to produce engineering plastics that are heat resistant, cold resistant, and tough.
A large number of unit protective pieces made of hard synthetic resin such as ering plastic are formed so as to have a triple protective wall, and these unit protective pieces are made of a support member made of tough and flexible fabric or rubber. On one side, the unit protection pieces are interlocked and overlapped so that they are supported independently, and a rubber liner type support is provided on which each unit protection piece is attached in this way. This is achieved by bringing the member into close contact with the inner peripheral surface of the tire casing.

[0017] In addition, each of the above-mentioned unit protection pieces has three rectangular plates having a predetermined standard and are stacked in a stepped manner along the diagonal direction of the rectangles, so it has a triple protection wall. ,
One of the three layers of protection walls is attached to the surface of the support member, and the other two protection walls interlock and overlap with the stepped protection walls of other adjacent unit protection pieces. . For this reason, these unit protection pieces can be deformed independently, and even if a needle-like hazardous substance enters through the gap between each unit protection piece, the protective walls that interlock with each other and overlap are 2 to 3. It becomes possible to block it heavily.

In the wheel tire puncture preventive device according to the present invention constructed as described above, the specifications of each unit protective piece and the form and quantity of this unit protective piece to be attached to the support member are determined. With suitable modifications and configurations, it can be applied to all wheel tires, such as tubeless tires, tube tires, motorcycle or bicycle tires, etc. In addition, the step-type three-layer protective wall of each unit protection piece can effectively block needle-shaped hazardous substances that enter the tire casing from the inner side of the tire casing or the gaps between the unit protection pieces, completely preventing tire bursting. can. Furthermore, when the tire is deformed in various ways while the vehicle is running, the support member and each unit protection piece attached to the support member are independently and flexibly bent and deformed or restored to their original state. Therefore, the tire's inherent shock absorption and elasticity are stably maintained, and the tire's driving performance is completely maintained.

[0019]

Embodiments Hereinafter, embodiments of the present invention will be explained in detail with reference to the drawings. FIG. 1 is a partially exploded perspective view showing a wheel tire puncture prevention device according to the present invention, and FIG. 2 is a partially longitudinal sectional view of the wheel tire puncture prevention device according to the present invention.

As shown in the drawings, the puncture prevention device P1 according to the present invention has a plurality of protective walls 11, 12, 13 made of hard synthetic resin such as heat-resistant, cold-resistant, and tough engineering plastic in a stepped manner. By a large number of superimposed unit protection pieces 10 and a heat-resistant, cold-resistant, tough, and bendable support member 21 that interlocks with each other and is attached in an overlapping manner so that the unit protection pieces 10 are supported independently. It is configured.

Each of the unit protection pieces 10 is made up of a plurality of rectangular plates (three pieces are illustrated in the drawing) each having a predetermined size, which are stacked in a stepped manner along the diagonal direction of the plates. Each protective wall 11, 12, 13 is formed.

By welding the outer side surface of the protective wall 13, which is one side surface of these unit protective pieces 10, onto the outer circumferential surface of the supporting member 21, these unit protective pieces 10 are independent of the supporting member 21. The protective walls 11, 12, 13 of this unit protective piece 10 are supported by the protective walls 11, 12, 13 of other unit protective pieces 10 located adjacent to the front, rear, left, and right sides. 13, and are in a state where they are overlapped and adhered to each other.

Therefore, these unit protection pieces 10 interlock the needle-like hazardous substances that enter from the gaps between adjacent other unit protection pieces 10, and the superimposed protection walls 11, 1
2 and 13 allow triple blocking.

Furthermore, the support member 21 to which each unit protection piece 10 is attached is made of rubber or nylon.
ylon) or synthetic rubber strongly reinforced with carbon fiber, it can be flexibly bent and deformed or restored to its original state.

The support member 21 may have various materials, specifications, and shapes, such as a rubber liner or a textile cover, depending on the type or standard of the tire to which the puncture prevention device of the present invention is applied. It can be implemented by changing to Further, in the puncture prevention device P1 according to the present invention configured as described above, each applied unit protection piece 10 is supported independently on the support member 21, so that the puncture prevention device P1 can be attached to a tire. Even when the puncture preventive device is brought into close contact with the inner side of the casing, the entire puncture preventive device is flexibly bent and deformed together with the tire casing.

[0026] Therefore, even if a strong impact is suddenly applied from the outside to any outer circumferential surface of the tire, this impact will remain at the line where the protective unit pieces attached to the outer circumferential surface of the support member engage and overlap. As a result, the elasticity of the tire as a whole is kept balanced under any circumstances, and the tire's inherent shock absorbing function is stably maintained, so that the ride feeling and driving performance of the vehicle are always maintained stably.

The operation of the embodiment and other embodiments of the present invention will be explained below with reference to the drawings.

FIG. 3 is a perspective view of a vehicle tire puncture prevention device according to an embodiment of the present invention, and FIG. 4 shows a state in which the vehicle tire puncture prevention device shown in FIG. 3 is applied to a tubeless tire. It is a partially cutaway perspective view shown in FIG.

As shown in the drawings, the puncture preventive device P1 of this embodiment is made of rubber and has a U-shaped inner lining shape such that both end portions of the puncture preventive device P1 are joint portions 21a. It is composed of a support member 21 and each unit protection piece 10 that is attached to the entire outer circumferential surface of the support member 21 except for the joint portion 21a.

The joint portion 21a of the support member 21 is joined to the inner side of each bead formed at the end portions of both side walls 31a of the tire casing 31.
As shown in FIG. 5, all of the outer circumferential surface portions of the support member 21 except for the joint portion 21a are separably in close contact with the inner circumferential surface of the tire casing 31.

Therefore, in the puncture prevention device P1 according to the present invention applied to the tubeless tire 30, the unit protection piece 10 made of a heat-resistant, cold-resistant, and tough hard synthetic resin such as nylon is different from the usual one. They are attached to a support member 21 having the function and material of an inner liner so as to be independently supported.

[0032] The stepped protection walls 11, 12, 13 formed in this unit protection piece 10 interlock with other protection walls 11, 12, 13 adjacent to these and are attached in an overlapping manner. The weight of the puncture prevention tool P1 itself becomes lighter and the thickness becomes considerably thinner, so that the occupation ratio of the puncture prevention tool P1 to the entire tire volume is maintained at 2 to 3%.

[0033] Furthermore, the tire's inherent elasticity and shock absorbing ability are sufficiently maintained, and when the tire is deformed, each unit protection piece 10 and the support member are flexibly bent and deformed, thereby preventing any influence on the tire's contact with the ground. Therefore, the riding feeling while driving and the braking performance during braking can be safely maintained.

Furthermore, damage to the tire casing 31 due to contact between each unit protection piece 10 and the tire casing 31 is completely eliminated.

In the puncture prevention device P1 according to the present invention, each of the unit protection pieces 10 is attached to the supporting member along the tread portion 31c of the tire casing 31 and the side wall portions 31a on both sides. 21
The tire casing 31 is closely attached to the tire casing 31.

When a needle-like hazardous substance such as a nail enters from the ground contact part or the side wall part of the tire while the vehicle is running, that is, as shown in FIG.
c or the tip of the needle-like hazardous substance H that penetrated through the side wall portion 31a is the unit protection piece 1 of the puncture prevention device P1.
When the acicular hazardous substance H comes into contact with the first protective wall 11, which is the outer peripheral surface of 0, the needle-like hazardous substance H is blocked by the second protective wall 12 and the third protective wall 13, and the unit protective pieces 10 move inward. be refracted.

Therefore, since the acicular hazardous substance H cannot directly penetrate the unit protection piece 10, it is possible to prevent all tires from bursting regardless of the location and type of the intruding hazardous substance.

That is, when the tip of the hazardous substance H that has penetrated the tanya casing enters through the gap between the unit protection pieces 10, the second protection of each unit protection piece 10 is placed on the inside of the gap. Since the wall 12 and the third protection wall 13 interlock and overlap each other, the dangerous object H is blocked from entering further forward. Thereafter, when the hazardous object H that has penetrated the tire casing 31 is removed, the bending deformation portion of the puncture prevention tool P1 is quickly returned to its original state by the air pressure acting on the inner side of the puncture prevention tool P1.

In the embodiment described above, the wheel tire puncture prevention device P1 according to the present invention is applied to the tubeless tire 30, and the hazardous substance H that enters from the tread portion 31c and side wall portion 31a of the tire casing 31 is applied to the tubeless tire 30. 6, as shown in FIG. It is also possible to prevent hazardous substances H from entering through the tread portion 31c of the tire casing 31.

FIG. 7 is a partial perspective view of a puncture prevention device according to another embodiment of the present invention, and FIG. 8 shows a state in which the puncture prevention device shown in FIG. 7 is applied to a tube type tire. FIG.

As shown in the drawings, a puncture preventive device P2 according to another embodiment of the present invention has the support member on the outer peripheral surface of the unit protection piece 10 of the puncture preventive device P1 explained in the previous embodiment. Cover made of rubber or textile material similar to 21 (
Cover) 22.

When this puncture prevention tool (P2) is brought into close contact with the tube type tire 40, the outer peripheral surface of the cover 22 of the puncture prevention tool P2 is placed on the inner peripheral surface of the tire casing 41 from which the inner tube 50 has been removed. The puncture prevention device can be easily brought into close contact with the parts by bringing the inner tube 50 into close contact with the inner circumferential surface of the puncture prevention device P2 and filling it with air.

The action is similar to that of the tubeless tire shown in FIG. When the needle-like hazardous substance H enters the inward side, the unit protection piece 10 portion of the puncture prevention device P2 is bent inward and the inner tube 50 on the inward side is deformed. Intrusion into the side and damage to the inner tube 50 are prevented, and by removing this hazardous substance H, the inner tube 50 returns to its original state due to its own restoring elasticity.

Further, FIG. 9 is a partial vertical sectional view showing another embodiment in which the puncture prevention device shown in FIG. 7 is applied to a tube type tire.

As shown in the drawings, as another embodiment of the present invention, the puncture prevention device P2 is attached to a tire casing 41.
The tire can now be protected from hazardous substances H that enter through the tread portion 41c of the tire, and its effect is similar to that of the puncture prevention device for tubeless tires, as shown in FIG.

[0046] Above, an embodiment in which the wheel tire puncture preventive devices P1, P2 according to the present invention is applied to a vehicle tubeless tire 30 or a tube type tire 40 has been described. Preventer P1
By variously changing the specifications and shapes of P2, P2, and the tightness of the tires, the puncture prevention devices P1 and P2 can be applied to all types of wheels such as motorcycle or bicycle tires. can.

[0047]

Effects of the Invention As explained above, in the wheel tire puncture prevention device according to the present invention, a large number of synthetic resin unit protection pieces having stepped protection walls are attached to a flexible and bendable support member. Since they are attached to each other in a mutually interlocking and overlapping manner so that they are supported independently on the outer circumferential surface, each unit protection piece and support member flexibly bends due to any impact applied to the puncture prevention device. As it is deformed, it completely blocks all needle-like hazards from entering the tire from outside, and has the effect of completely preventing tire punctures or ruptures. In addition, even when subjected to any impact while driving, the tire's basic shape is normally maintained due to the flexible bending and quick restoring elasticity of the puncture preventive device, and the effect is that the unique performance of the tire and the running performance of the wheel can be stably maintained. be. In addition, by variously changing the specifications and shapes of the support member of the puncture prevention device and the unit protection piece attached to this support member, it can be applied to tubeless tires, tube-type tires, motorcycles, bicycles, etc. It has a wide range of effects that can be applied to all wheels.

[Brief explanation of the drawing]

FIG. 1 is a partially exploded perspective view of a wheel tire puncture prevention device according to the present invention.

FIG. 2 is a partial vertical cross-sectional view of the puncture prevention device for wheel tires according to the present invention.

FIG. 3 is a perspective view of a puncture prevention device for a wheel tire showing an embodiment of the present invention.

FIG. 4 is a partially cutaway perspective view showing the puncture prevention device shown in FIG. 3 applied to a tubeless tire.

FIG. 5 is a longitudinal cross-sectional view showing the state and effect of the puncture prevention device shown in FIG. 3 applied to a tubeless tire.

FIG. 6 is a partial longitudinal sectional view showing another embodiment in which the wheel tire puncture prevention device according to the present invention is applied to a tubeless tire.

FIG. 7 is a partial perspective view of a puncture prevention device for a wheel tire showing still another embodiment of the present invention.

8 is a longitudinal cross-sectional view showing a state in which the wheel tire puncture prevention device shown in FIG. 7 is applied to a tube-type tire.

9 is a partial vertical sectional view showing another embodiment in which the puncture prevention device shown in FIG. 7 is applied to a tube tire.

[Explanation of symbols] 10...Unit protection piece, 11, 12, 13...Stepwise protection wall,
21...Supporting member, 21a...Joint part, 22...Cover, P1
...Puncture prevention equipment.

Claims (6)

[Claims] [Claim 1] A plurality of stepped protection walls (11), (1
2), (13), and a support member (21) made of a flexible material such as rubber or fabric.
) of each unit protection piece (10) so that the plurality of unit protection pieces (10) are independently supported on one side of each unit protection piece (10). Stepped protection wall (11) of the other unit protection piece (10) adjacent to
12) A puncture prevention device for a wheel tire, which is constructed by interlocking and overlapping and being attached to (12) and (13). 2. The support member (21) has an inner liner shape so as to be in close contact with the entire inner peripheral surface of the tire casing of the tubeless tire.
21) consists of joint parts (21a) that are joined to the inner side of the bead part of the tire casing, and the above-mentioned unit protection is applied to the entire outer peripheral surface of the support member (21) except for the joint parts (21a). A puncture prevention device for a wheel tire according to claim 1, wherein the piece (10) is applied to a tubeless tire. 3. The support member (21) has an inner liner shape so as to be in close contact with the entire inner circumferential surface of the tire casing of the tubeless tire.
The peripheral edge portions of both side ends of the support member (21) become joint portions (21a) that are joined to the inner side of the bead portion of the tire casing, and the supporting member (21) corresponds to the tread portion of the tire casing.
21) The puncture prevention device for a wheel tire according to claim 1, wherein the unit protection piece (10) is attached to a central portion on the outer peripheral surface of the wheel tire so as to be applicable to a tubeless tire. 4. A cover (22) that covers each unit protection piece (10) attached to the outer peripheral surface of the support member (21).
) is attached to the support member (21), and the cover (2
The wheel according to claim 1, wherein the supported support member (21) according to 2) is arranged in close contact between a tire casing and an inner tube of a tube-type tire so that it can be applied to a tube-type tire. Puncture prevention device for tires. 5. The unit protection piece (10) is attached to the entire outer peripheral surface of the support member (21) corresponding to the entire inner peripheral surface of the tube type tire casing, thereby protecting the tire tread area. 5. The puncture prevention device for a wheel tire according to claim 4, which is capable of preventing harmful substances from entering from the side wall portions of both sides. 6. The unit protection piece (10) is attached to the outer peripheral surface of the support member (21) corresponding to the tread region of the tube-type tire casing, so that the unit protection piece (10) penetrates from the tread region of the tire casing. The puncture prevention device for a wheel tire according to claim (4), which is capable of preventing harmful substances.