KR102478871B1 - Tires equipped with reinforcing members with heat dissipation performance - Google Patents

Abstract

A tire provided with a reinforcing member is disclosed. A tire equipped with a reinforcing member according to the present invention reduces the road surface impact of the tire during vehicle driving and prevents separation of a belt supporting the tread against a lateral load. In a tire equipped with a reinforcing member for supporting, the reinforcing member includes an edge cover spirally wound to cover both ends of the belt, and the edge cover includes: a first resin layer; A graphene layer provided on the first resin layer; And it is made of a lightweight film structure including a second resin layer provided on the graphene layer, characterized in that heat generated around the belt generated during driving is transferred to the outside. According to the present invention, the edge cover and cap ply, which are reinforcing members for reinforcing the belt of a tire, include a first resin layer, a graphene layer provided on the first resin layer, and a second resin layer provided on the graphene layer. As it is made of a film structure including a membrane, separation of the belt can be prevented as in the prior art, support and reinforcement for the belt are made, as well as heat dissipation performance that smoothly transfers heat generated from the tire during driving to the surroundings, and thin There is an effect that the weight of the tire can be promoted due to the membrane structure.

Description

Tire equipped with a reinforcing member having heat dissipation performance {TIRES EQUIPPED WITH REINFORCING MEMBERS WITH HEAT DISSIPATION PERFORMANCE}

The present invention relates to a tire equipped with a reinforcing member having heat dissipation performance, and more particularly, to replace a conventional single cord with a rubber-topped reinforcing member supporting a belt with a composite material in the form of a film including a graphene layer. It is about a tire with improved heat dissipation performance along with its original function.

As shown in FIG. 5, a typical conventional pneumatic tire includes an inner liner 20 forming a sealed lumen S inside the tire, a carcass 70 disposed on the outer circumference, and At least one belt 30 laminated, a tread 40 laminated on the outer circumference thereof and substantially in contact with the ground, and a reinforcing member laminated between the belt 30 and the tread 40 to reinforce the belt 30 It can be composed of the cap ply 15', the edge cover 10', the sidewalls 50 constituting both sides of the tire, and the bead 60 coupled to the wheel to seal the inside of the tire.

A technology for a general tire as described above is disclosed in Korean Patent Publication No. 10-2005-0051103 and the like.

Here, as shown in FIG. 5, the edge cover 10′, which is a reinforcing member, is formed into a thin strip having a certain width in a rolling mill or an extruder, and then both sides of the belt 30 located on the forming drum in the tire forming process. It is joined by being spirally wound along the circumferential direction of the tire to cover a part of the carcass 70 adjacent to the end, and the cap ply 15' is formed into a thin plate shape, and then the belt located on the drum in the tire forming process ( 30) is bonded along the circumferential direction of the tire so as to cover the entire upper surface of the belt 30, thereby preventing deformation, detachment or separation of the belt 30.

Such a conventional edge cover 10` is shown in FIG. 5 to more firmly suppress the thermal expansion or separation phenomenon of the belt 30 due to heat generated during vehicle driving and to enhance fatigue resistance against flexion and extension of the tire. It is manufactured in the form of a thin strip coated with a woven fiber cord or a single cord (10`a) arranged in parallel one by one with a rubber topping (10`b), and the cap ply (15`) is also a thin strip of the above structure. It is manufactured in plate form.

However, the conventional edge cover 10' and cap ply 15' as described above have low thermal conductivity or heat dissipation capacity due to the characteristics of the single cord 10'a or rubber topping 10'b, which is a fiber material constituting them, and There was a problem of being vulnerable to excessive heat generated due to high-speed driving, insufficient tire air pressure, or overloading of the vehicle.

The above excessive tire heating problem causes separation between the belt 30 and the tread 40 and increases the risk of tire rupture, so various solutions have been proposed.

For example, research and development on fiber cords such as capply and carcass, adhesive materials, raw material rubber, or the content of carbon black as a reinforcing material have been conducted in various ways, but due to limitations in usable materials or structural changes, heat dissipation or train It is still insufficient to significantly improve the single ability.

Korean Patent Publication No. 10-2005-0051103 (published on June 1, 205)

An object of the present invention is to replace reinforcing members such as edge covers and cap plies formed by coating rubber toppings on conventional single cords with film-type composite materials including graphene layers to improve heat dissipation performance along with belt reinforcement, which is the original function. and to provide a tire capable of reducing the weight of the tire.

The above object is to reduce the road surface impact of the tire while driving the vehicle and to prevent separation of the belt supporting the tread with respect to the lateral load, and in the tire provided with a reinforcing member for supporting, the reinforcing member, the both ends of the belt and an edge cover spirally wound to cover, wherein the edge cover comprises: a first resin layer; A graphene layer provided on the first resin layer; And a lightweight membrane structure including a second resin layer provided on the graphene layer to transfer heat generated around the belt during driving to the outside. is achieved by

Another object of the above is to reduce the road surface impact of the tire while driving the vehicle and prevent separation of the belt supporting the tread with respect to the lateral load, and in the tire provided with a reinforcing member for supporting, the reinforcing member is the upper part of the belt and a cap ply provided to cover the cap ply, the cap ply comprising: a first resin layer; A graphene layer provided on the first resin layer; And a lightweight membrane structure including a second resin layer provided on the graphene layer to transfer heat generated around the belt during driving to the outside. is achieved by

The graphene layer may be continuously formed as a single layer by an ultrasonic spray device for spraying a dispersion containing a graphene material in the form of an aerosol onto the first resin layer continuously provided through a first supply roller.

The first resin layer, after passing through a drying device for drying the dispersion, may be laminated to each other while passing through a pressure roller together with the second resin layer continuously provided through a second supply roller.

A plurality of through-holes are formed in the graphene layer to increase the bonding force between the first and second resin layers, and a pattern corresponding to the through-hole is formed so that the ultrasonic spray device and the first number It may be formed through a mask interposed between the stratum layers.

The through hole may be formed with an area corresponding to 10% to 20% of the unit area of the graphene layer and may have a diameter of 2 mm to 5 mm.

The reinforcing member may further include a rubber layer topped to cover the first resin layer and the second resin layer.

According to the present invention, the edge cover and cap ply, which are reinforcing members for reinforcing the belt of the tire, are not made in the form of a rubber sheet reinforced with a conventional single cord, but are provided on the first resin layer and the first resin layer. As it is composed of a membrane structure including a pin layer and a second resin layer provided on the graphene layer, separation of the belt can be prevented as in the prior art, support and reinforcement for the belt are made, as well as in tires during driving. In addition to heat dissipation performance that smoothly transfers the generated heat to the surroundings, the thin film structure has the effect of reducing the weight of the tire.

1 is a partially cut-away perspective view of a tire equipped with a reinforcing member having heat dissipation performance according to a first embodiment of the present invention.
2 is a process chart schematically showing a series of processes for manufacturing a reinforcing member according to a first embodiment of the present invention.
3 is a process chart schematically showing a series of processes for manufacturing a reinforcing member according to a second embodiment of the present invention.
4 is a process chart schematically showing a series of processes for manufacturing a reinforcing member according to a third embodiment of the present invention.
5 is a partial cutaway perspective view showing the structure of a conventional reinforcing member.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing the present invention, descriptions of already known functions or configurations will be omitted to clarify the gist of the present invention.

1 is a partially cut-away perspective view of a tire equipped with a reinforcing member having heat dissipation performance according to a first embodiment of the present invention, and FIG. 2 is a schematic diagram of a series of processes for manufacturing a reinforcing member according to a first embodiment of the present invention. , Figure 3 is a process chart schematically showing a series of processes for manufacturing a reinforcing member according to a second embodiment of the present invention, Figure 4 is a process chart for manufacturing a reinforcing member according to a third embodiment of the present invention It is a process diagram schematically showing a series of processes, and FIG. 5 is a partial cutaway perspective view showing the structure of a conventional reinforcing member.

Top (top), bottom (bottom), left and right (side or side), front (front, front), back (back, back), etc., which refer to directions in the description and claims of the invention, etc., are not intended to limit the use of rights. For convenience of description, the relative position between the drawings and configurations is determined as a standard, and the three axes may be rotated and changed to correspond to each other, and this is followed unless otherwise specifically defined.

The tire 100 equipped with a reinforcing member having heat dissipation performance according to the present invention is stacked between the belt 30 and the tread 40 to reinforce the belt 30, as well as the function as a reinforcing member, as well as rubber, which is a heavy material. This invention was devised to give the edge covers 10a, 10b, and 10c and the cap ply 15 special lightness and heat generation performance, which are weak parts of the material.

As shown in FIG. 1, the tire 100 equipped with a reinforcing member having heat dissipation performance according to the present invention includes an inner liner 20, a carcass 70, a belt 30, and the above It is composed of edge covers 10a, 10b, and 10c, which are reinforcing members with added functionality, cap plies 15, treads 40, sidewalls 50, beads 60, and the like.

Here, the edge covers 10a, 10b, and 10c shown in FIG. 1 are formed into a thin strip shape having a constant width by the process shown in FIGS. 2 to 4, and the belt located on the forming drum in the tire molding process 30) is a reinforcing member that is spirally wound along the circumferential direction of the tire and joined to cover a portion of the carcass 70 adjacent to both ends of the tire.

In addition, the cap ply 15 shown in FIG. 1 is a reinforcing member that is formed into a thin plate shape and then bonded along the circumferential direction of the tire to cover the entire upper surface of the belt 30 located on the forming drum in the tire forming process. , Although not particularly shown in FIGS. 2 to 4, it may be manufactured in the same manner as the edge covers 10a, 10b, and 10c.

In order to specifically implement the unique functions or actions of the present invention as described above, the tire 100 according to the present invention includes a first resin layer 110 and a graphene layer 120 as shown in FIGS. 1 and 2 ) and the second resin layer 130, the reinforcing member of the first embodiment including, and as shown in FIG. 3, the first resin layer 110, the adhesive layer AL, the graphene layer 120 and the second number The reinforcing member of the second embodiment including the ground layer 130 and the like, and as shown in FIG. 4, the first resin layer 110, the graphene layer 120, the second resin layer 130, the rubber layer 140, etc. It can be divided into the reinforcing member of the third embodiment including.

Hereinafter, the reinforcing member for each embodiment described above, that is, the edge covers 10a, 10b, and 10c and the cap ply 15 will be described in detail.

First, as shown in FIGS. 1 and 2, the edge cover 10a (or cap ply 15) according to the first embodiment includes a first resin layer 110, a graphene layer 120, and a second It may be configured to include a resin layer 130 and the like.

Here, the first resin layer 110 is a thin film-like component that forms a solid bonding force with the graphene layer 120 on one side of the graphene layer 120 to be described later and is integrally formed.

The polymer forming the first resin layer 110 is inserted between the graphene materials GM arranged to form the graphene layer 120 and forms a chemical bond (covalent bond) with the graphene material GM. , It serves to protect one side of the graphene layer 120, and serves to supplement the mechanical properties exhibited by the graphene layer 120.

The polymer forming the first resin layer 110 is not particularly limited as long as it has a melting point that does not melt under heat or pressure applied during tire manufacturing, and has flexibility and tough rigidity.

However, the first resin layer 110 is PET (Polyethylene Terephthalate), PPS (Polyphenylene Sulfide), PSU (Polysulfone), PEEK (Polyetheretherketone), PES (Polyethersulfone), PPA (Polyphthalamide), PEI (Polyetherimide), TPI (Thermoplastic Polyimide) may be a film made of a resin containing at least one.

Here, PET is a heat-resistant resin having excellent mechanical and electrical properties and chemical resistance and having a heat distortion temperature of about 240° C., and resistance to cracks or stress can be enhanced by adding various additives.

PPS is a heat-resistant resin with excellent properties such as mechanical strength and chemical resistance, and is mainly used for electrical/mechanical parts that require heat resistance due to its flame retardant properties. PSU is a resin with excellent heat resistance and dimensional stability. As such, it is suitable for applications such as electrical/electronic and medical device parts.

And PEEK is a heat-resistant resin with excellent chemical resistance and abrasion resistance and a melting point of about 340°C. there is

PES is a heat-resistant resin with excellent dimensional stability and flame retardancy, and can be used instead of glass, metal, ceramics, etc., and thus has a very wide range of application fields.

PPA is a heat-resistant resin characterized by excellent chemical resistance and low water absorption, and has a wide range of uses due to its excellent physical properties and low price.

PEI is a heat-resistant resin that is excellent in high stiffness, high strength, flame retardancy, dimensional stability, etc., and especially has excellent electrical properties, and TPI is excellent in abrasion resistance, high stiffness, creep resistance, and chemical resistance, so that It is a heat-resistant resin mainly used for new material parts in the aerospace industry.

The various heat-resistant resins mentioned above may be used in the manufacture of the first resin layer 110 by selecting any one of them in order to implement necessary physical properties according to the tire specification, use, or use environment of the tire, and two or more may be appropriately mixed. Thus, it may be used in the manufacture of the first resin layer 110.

The first resin layer 110 manufactured in the form of a film using the above-described heat-resistant resin is put into the reinforcing member manufacturing line according to the present invention in a state wound around the first supply roller 1 as shown in FIG. and is continuously provided to the subsequent process.

At this time, the first resin layer 110 in the form of a film may be limited to a thickness of 50 μm to 100 μm, because, when the thickness of the first resin layer 110 is less than 50 μm, during flexion and extension of the tire There is a problem that the impact protection of the first resin layer 110 for the graphene layer 120, which will be described later, is greatly reduced, and when the thickness of the first resin layer 110 exceeds 100 μm, the graphene layer 120 dissipates heat. This is because a problem in which performance is reduced and a problem in which the weight of the tire is reversed may be caused.

The graphene layer 120 prevents separation of the belt 30 and supports the belt 30 while solving the problem of the conventional single cord 10`a and rubber topping 10`b having low thermal conductivity. As a component introduced for the purpose, it may be provided as a single layer on the above-described first resin layer 110.

Here, the graphene material forming the graphene layer 120 is a next-generation new material in which carbon atoms form a hexagonal lattice, that is, a honeycomb structure to form a two-dimensional planar structure, from several nm to several tens of μm. It is thin and light in thickness, but is 200 times stronger than steel, has excellent electrical and thermal conductivity, and has excellent physical and chemical properties such as elasticity.

Due to these exceptional physical and chemical properties, graphene material (GM) is being actively researched and developed in various fields such as airplanes, automobiles, building materials, and medical industries.

The above-described graphene material (GM) may be extracted through a physical or chemical exfoliation method for a graphite crystal serving as a main material, or may be obtained through a vapor deposition method using a carbon precursor.

In the graphene layer 120 according to the present invention, the graphene material (GM) extracted by various graphene manufacturing methods as described above is diffused or dissolved in a solvent such as methylpyrrolidone (N-Methyl-2-pyrrolidone) or water. It can be formed into a single layer by the ultrasonic spray device 2 for spraying the dispersion (D) formed in the form of an aerosol.

Specifically, as shown in FIG. 2, the graphene layer 120 is a dispersion of the ultrasonic spray device 2 installed toward the first resin layer 110 continuously provided through the first supply roller 1. (D) can be continuously formed as a single layer by the operation of spraying in the form of an aerosol.

At this time, the ultrasonic spray device 2 generally includes a storage tank (not shown) accommodating the dispersion D in a liquid or solution state, and a piezoelectric transducer for forming fine aerosol droplets by applying a mechanical pulse to the stored dispersion D. (not shown), and a pressurizing device (not shown) that pressurizes the generated aerosol droplets and discharges them to a nozzle.

As described above, the reason for coating or forming the dispersion (D) including the graphene material (GM) on the first resin layer 110 using the ultrasonic spray device 2 is the graphene material ( In order to enable the incomplete form (oxidized) graphene or insufficiently separated multilayer graphene included in GM) to be finely separated by ultrasonic waves during the operation of the ultrasonic spray device 2 and then sprayed in a single layer form to be.

Due to the ultrasonic spray device 2, when the dispersion D collides with the first resin layer 110, the graphene material GM separated into a single layer structure penetrates into the first resin layer 110 and forms an aggregate. By forming, the graphene layer 120 is formed, and the solvent in the dispersion (D) can be removed by collision with the first resin layer 110.

The graphene layer 120 prepared as above may be limited to a thickness of 0.5 nm to 10 nm, because, when the thickness of the graphene layer 120 is less than 0.5 nm, it is difficult to provide sufficient thermal conductivity, and This is because, when the thickness of the graphene layer 120 exceeds 10 nm, there is a structural problem in that it is difficult to implement sufficient rigidity.

At this time, the control of the thickness of the graphene layer 120 may be performed by adjusting the spray speed of the above-described ultrasonic spray device 2, and the manufacturing process in which the graphene layer 120 is continuously formed on the first resin layer 110 In the case of the line, it can be made by adjusting the speed at which the first resin layer 110 moves by the first supply roller 1.

The graphene layer 120 formed on the first resin layer 110 is provided to the drying device 3 by the first supply roller 1 to remove the solvent remaining on the first resin layer 110. And, by heating to a predetermined temperature, a solid hexagonal honeycomb structure is formed on a two-dimensional plane.

Accordingly, the graphene layer 120, despite its ultra-light and thin thickness, can exhibit excellent stiffness, thermal conductivity, and elasticity, which are unique characteristics of graphene.

The second resin layer 130 is a thin film-like component that forms a solid bonding force with the graphene layer 120 on the other side of the graphene layer 120, which is opposite to the above-described first resin layer 110, and is integrally formed. to be.

The polymer forming the second resin layer 130 is inserted between the graphene materials GM arranged to form the graphene layer 120 and forms a chemical bond (covalent bond) with the graphene material GM. , Yes, it serves to protect the other surface of the pinned layer 120, and serves to complement the mechanical properties exhibited by the pinned layer 120.

The polymer forming the second resin layer 130 is not particularly limited as long as it has a melting point that does not melt under heat or pressure applied during tire manufacturing, and has flexibility and tough rigidity.

Therefore, like the above-mentioned first resin layer 110, the above-mentioned heat-resistant resin is selected to implement necessary physical properties according to the tire specification, use, or tire usage environment, and the second resin layer 130 It may be used for the manufacture of, and may be used for the manufacture of the second resin layer 130 by properly mixing two or more.

On the other hand, the second resin layer 130 made in the form of a film, like the first resin layer 110, may be limited to a thickness of 50 μm to 100 μm, because the second resin layer 130 When the thickness of is less than 50 μm, there is a problem in that the impact protection of the second resin layer 130 for the graphene layer 120, which will be described later, is greatly reduced during the flexion and extension movement of the tire, and the thickness of the second resin layer 130 is 100 μm. If it exceeds ㎛, it is because the problem that the heat dissipation performance of the pinned layer 120 is reduced and the problem that goes against the weight reduction of the tire may be caused.

The second resin layer 130, which is manufactured in the form of a film using the above-described heat-resistant resin, is put into the reinforcing member manufacturing line according to the present invention in a state wound around the second supply roller 4, as shown in FIG. So, together with the first resin layer 110 on which the pinned layer 120 is formed, they are laminated together by heating and pressing by the pressure roller 5 to form an integral body.

At this time, due to the heating and pressurization by the pressure roller 5, the graphene layer 120 forms a more robust hexagonal honeycomb structure in units of carbon atom thickness between the first and second resin layers 110 and 130, The 1 and 2 resin layers 110 and 130 can form a bonding force with each other.

As described above, according to the edge cover 10a (or cap ply 15) according to the first embodiment, it is lightweight with a simplified process without using a heavy rubber topping 10'b as in the prior art. It is possible to manufacture a reinforcing member, and as in the prior art, separation between the tread 40 and the belt 30 can be prevented, sufficient support for the belt 30 can be achieved, and heat transfer of the graphene material (GM) can be achieved. Due to this ability, the heat generated from the tire while driving is smoothly transferred to the surroundings, reducing the risk of tire bursting.

Meanwhile, as shown in FIG. 3, the edge cover 10b (or cap ply 15) according to the second embodiment includes a first resin layer 110 and a graphene layer 120 having through holes 122 formed thereon. ), the second resin layer 130 and the adhesive layer AL.

The edge cover 10b (or cap ply 15) according to the second embodiment has a through hole 122 formed in the graphene layer 120 compared to the above-described first embodiment, and the graphene layer 120 ) and the first and second resin layers 110 and 130, there is a difference in that an adhesive layer (AL) is further provided, respectively, so only this will be described in detail, and the other contents are replaced with the above-described contents. do it with

The technical feature of the edge cover 10b (or cap ply 15) according to the second embodiment of the present invention is formed by forming a plurality of through holes 122 in the graphene layer 120 as described above. will lose

The plurality of through holes 122 are formed in the graphene layer 120, which is a material of a different kind from the resin, so that when the first and second resin layers 110 and 130 are integrated with each other, a component that provides a space so that the resins can be bonded to each other. to be.

Due to the plurality of through holes 122, the bonding strength between the first and second resin layers 110 and 130 can be increased compared to the first embodiment.

At this time, the through hole 122 formed in the graphene layer 120, as shown in FIG. 3, a pattern 6a corresponding to the through hole 122 is formed, and the above-described ultrasonic spray device 2 and the second 1 may be formed through a mask 6 interposed between the resin layers 110 .

The pattern 6a formed on the above-described mask 6 blocks the dispersion D sprayed in the region corresponding to the through hole 122 of the graphene layer 120 from reaching the first resin layer 110. It is made up of multiple structures.

Specifically, the through hole 122 is formed with a diameter of 2 m to 5 mm so that the adhesive or the first and second resin layers 110 and 130 that are heated and pressed can smoothly penetrate into the inside, but the graphene layer 120 It may be desirable to form an area corresponding to 10% to 20% of the unit area.

At this time, the reason why the diameter of the through hole 122 is limited as described above is that, when the diameter of the through hole 122 is less than 2 mm, even when the pressure roller 5 described above operates, the graphene layer 120 is interposed therebetween. There is a problem in that it is difficult to firmly bond between the first resin layer 110 and the second resin layer 130, and when the diameter of the through hole 122 exceeds 5 mm, the area of the graphene layer 120 decreases. This is because the thermal conductivity and rigidity decrease rapidly.

In order to further strengthen the bonding force between the first and second resin layers 110 and 130 together with the above-described through hole 122, the graphene layer 120 and the first resin layer 110 and the second resin layer 130 coupled thereto An adhesive layer AL may be provided between them.

Here, the adhesive layer AL is applied to the adhesive applied to the first resin layer 110 and the graphene layer 120 through the adhesive supply device 7 independently installed along the reinforcing member manufacturing line as shown in FIG. Alternatively, it may be formed by an adhesive applied through various coating machines operating in conjunction with a driving roller for transport.

The adhesive layer (AL) is specifically made of a component including at least one of acrylic, polyurethane, epoxy, polyester, silicone, vinyl chloride, SBR (Styrene Butadiene Rubber) and NBR (nitrile-butadiene rubber), Its thickness may range from 5 μm to 20 μm.

Meanwhile, the edge cover 10c (or cap ply 15) according to the third embodiment, as shown in FIG. 4, includes a first resin layer 110, a graphene layer 120, and a second resin layer ( 130) and the rubber layer 140, and the like.

The edge cover 10c (or the cap ply 15) according to the third embodiment is different from the first embodiment in that the rubber layer 140 is further provided, so only this specifically It will be described, and other contents will be replaced with the above-described contents.

The technical feature of the edge cover 10c (or cap ply 15) according to the third embodiment of the present invention is that the rubber layer 140 as described above is formed between the first resin layer 110 and the second resin layer. It is made by topping to cover each of (130).

Here, the rubber layer 140 prevents damage to the first and second resin layers 110 and 130, while the first and second resin layers 110 and 130, which are different materials, and the belt 30 and the tread ( 40) It is a component prepared to increase the bonding force between them.

As described above, in order to form a predetermined bonding force with the first and second resin layers 110 and 130, and to maintain an equal bonding strength with the adjacent belt 30 and tread 40, the rubber layer 140 is made of natural rubber and a compound of 70Phr or more. may be made of a composition including an adhesive within 2.0 Phr based on (total 100 Phr).

Specifically, the rubber layer 140 is first molded into a rubber sheet R using the above-described composition as a material through a refining process, and then applied to the rolling roller 8 as shown in FIG. 4 of the first embodiment described above. It can be formed by being put together with the edge cover 10a (or the cap ply 15), heated and pressed.

As described above, due to the rubber layer 140 formed on the edge cover 10c (or the cap ply 15) of the third embodiment, the first and second integrated first and second surfaces are laminated to each other on both sides of the graphene layer 120 as a center. The resin layers 110 and 130 are not easily separated from the rubber belt 30 or the tread 40 and can maintain a strong bonding force.

In the foregoing, although specific embodiments of the present invention have been described and shown, the present invention is not limited to the described embodiments, and it is common knowledge in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. It is self-evident to those who have Therefore, such modifications or variations should not be individually understood from the technical spirit or viewpoint of the present invention, and modified embodiments should fall within the scope of the claims of the present invention.

1: first supply roller 2: ultrasonic spray device
3: drying device 4: second supply roller
5: pressure roller 6: mask
6a: pattern 7: adhesive supply device
8: rolling roller
10a, 10b, 10c: edge cover 10`: conventional edge cover
10`a: single cord 10`b: rubber topping
15: cap ply 15`: conventional cap ply
20: inner liner 30: belt
40: tread 50: sidewall
60: bead 70: carcass
S: lumen
100: tire equipped with a reinforcing member having heat dissipation performance
110: first resin layer 120: graphene layer
122: through hole GM: graphene material
D: dispersion 130: second resin layer
AL: adhesive layer 140: rubber layer
R: rubber sheet

Claims (7)

delete delete In the tire provided with a reinforcing member that reduces the road surface impact of the tire while driving the vehicle and prevents and supports the separation of the belt supporting the tread with respect to the lateral load,
The reinforcing member includes an edge cover spirally wound to cover both ends of the belt,
The edge cover,
A first resin layer; A graphene layer provided on the first resin layer; And a lightweight film structure including a second resin layer provided on the graphene layer to transmit heat generated around the belt during driving to the outside,
In the graphene layer,
In order to increase the bonding force between the first and second resin layers, a plurality of through holes are formed,
The through hole is
A tire equipped with a reinforcing member having heat dissipation performance, characterized in that a pattern corresponding to the through hole is formed through a mask interposed between the ultrasonic spray device and the first resin layer. delete In the tire provided with a reinforcing member that reduces the road surface impact of the tire while driving the vehicle and prevents and supports the separation of the belt supporting the tread with respect to the lateral load,
The reinforcing member includes a cap ply provided to cover an upper portion of the belt,
The cap ply,
A first resin layer; A graphene layer provided on the first resin layer; And a lightweight film structure including a second resin layer provided on the graphene layer to transmit heat generated around the belt during driving to the outside,
In the graphene layer,
In order to increase the bonding force between the first and second resin layers, a plurality of through holes are formed,
The through hole is
A tire equipped with a reinforcing member having heat dissipation performance, characterized in that a pattern corresponding to the through hole is formed through a mask interposed between the ultrasonic spray device and the first resin layer. According to claim 3 or 5,
The through hole is
A tire equipped with a reinforcing member having heat dissipation performance, characterized in that formed in an area corresponding to 10% to 20% of the unit area of the graphene layer and formed in a diameter of 2mm to 5mm. According to claim 3 or 5,
The reinforcing member,
A tire equipped with a reinforcing member having heat dissipation performance, characterized in that it further comprises a rubber layer topped to cover the first resin layer and the second resin layer.

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