KR20100121298A - Tread Detachable Pneumatic Tires - Google Patents

Abstract

The present invention relates to a tread separation type pneumatic tire, comprising: a tread replacement portion including a tread layer having an outer circumferential surface in contact with the ground and a first bonding layer bonded to the inside of the tread layer; And a tire body part including a second bonding layer bonded to the first bonding layer and a carcass layer and an innerliner layer formed inside the second bonding layer, wherein the first bonding layer and the second bonding layer are formed. In the tire circumferential direction and the tire width direction, a plurality of uneven parts are formed so that the first bonding layer and the second bonding layer serve as a belt layer of the tire, so that it can withstand flexure during driving of a vehicle and has a plate shape. Therefore, it has the effect of preventing tire separation by penetrating the tread layer by the sharp foreign matter while driving the car.If the fast tread layer is replaced, the tire body can be recycled and the tire can be used for a long time. Can reduce the cost.

Description

Tread Separable Pneumatic Tire

The present invention relates to a tread separation type pneumatic tire, and more particularly, to replace a tread portion having a faster wear rate than other parts to extend the life of the tire, and to a tread separation type pneumatic tire resistant to tire separation. It is about.

Conventionally, as shown in FIG. 1, the pneumatic tire is a rubber layer attached to the inside of the tire to support the load with the inner liner rubber layer 10 to prevent cord protection and water absorption, and the cord layer inside the tire to withstand impacts. A carcass cord layer (also called a 'body ply') 20 which has to be resistant to flexing movement during driving, a tread rubber layer 30 which is in direct contact with the road surface, and the tread rubber layer And a belt cord layer 40 between the 30 and the carcass cord layer 20.

Reference numeral 50 is a sidewall. Also, C / L refers to the circumferential centerline of the tire.

The belt cord layer 40 is referred to as a plurality of belt cord layers (hereinafter, 'first belt cord layer' 41 and 'second belt cord layer' 42 in order of being close to the carcass cord layer). ) To strengthen the tread and minimize flexion.

However, such pneumatic tires cause uneven growth of the tread due to uneven growth of the tires while driving.

On the other hand, although the side portion of the tire is relatively better than the tread portion, there is a problem in that the tire needs to be newly replaced due to uneven wear of the tread portion.

SUMMARY OF THE INVENTION An object of the present invention for solving the above problems is to easily replace only the worn tread portion, to provide a tread separate pneumatic tire that is firmly coupled when the tread portion is coupled to the tire body, and resistant to tire separation. will be.

The tread separation type pneumatic tire of the present invention for achieving the above object, a tread replacement portion including a tread layer whose outer peripheral surface is in contact with the ground and a first bonding layer bonded to the inside of the tread layer; And a tire body part including a second bonding layer bonded to the first bonding layer and a carcass layer and an innerliner layer formed inside the second bonding layer, wherein the first bonding layer and the second bonding layer are formed. It characterized in that a plurality of irregularities are formed to engage each other along the tire circumferential direction and the tire width direction.

Here, the first bonding layer and the second bonding layer is characterized in that the metal material.

In addition, the shape of the first bonding layer and the second bonding layer is characterized in that the plate shape.

In addition, the first bonding layer and the second bonding layer is characterized in that the topping (Topping) with rubber.

In addition, a plurality of holes are formed in the first bonding layer and the second bonding layer to improve adhesion to rubber.

In addition, the first bonding layer and the second bonding layer is characterized in that the coupling by bolt.

According to the tread separation type pneumatic tire of the present invention, the tread replacement portion and the tire body portion are configured to be coupled by the first coupling layer and the second coupling layer such that the first coupling layer and the second coupling layer are the belt layers of the tire. Because it plays a role of to endure the flexure during the driving of the vehicle, and has a plate shape has the effect of preventing the tire separation is penetrated through the tread layer by the sharp foreign matter during the driving of the car.

In addition, the fast-wearing tread layer can be replaced and the tire body can be recycled, allowing tires to be used for a long time and reducing tire replacement costs. In addition, a variety of treads can be selected and used according to the application. In other words, when a snowy day uses a general tire and when it snows, it is possible to respond to the snow road more efficiently than when the chain is inserted by replacing only a tread part having a pattern of snow tires. .

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, parts irrelevant to the description are omitted to clearly describe the present invention, and like reference numerals designate like elements throughout the specification.

Figure 2 is an exploded cross-sectional view showing a tread separate pneumatic tire according to a first embodiment of the present invention, Figure 3 is a combined cross-sectional view showing a combined state of the tread separate pneumatic tire of Figure 1, Figure 4 2 is a side cross-sectional view taken along the line AA, and FIG. 5 is a perspective view illustrating the first bonding layer of FIG. 1.

1 to 4, the tread separation type pneumatic tire according to the present invention includes a tread replacement part 100 and a tire body part 200.

The tread replacement part 100 includes a tread layer 110 whose outer circumferential surface is in contact with the ground and a first bonding layer 120 bonded to the inside of the tread layer.

The tire body 200 includes a second coupling layer 210 coupled to the first coupling layer 120 and a carcass layer 220 and an inner liner layer formed inside the second coupling layer 210. 230.

The carcass layer 220 serves to support the load of the vehicle during the stretching movement of the tire and to withstand the impact, and the inner liner layer 230 is attached to the inside of the tire to protect the cord and to prevent moisture absorption. It serves to prevent leakage.

In addition, the first coupling layer 120 and the second coupling layer 210 are provided with a plurality of uneven parts to be engaged with each other in the tire circumferential direction and the tire width direction.

That is, the first bonding layer 120 and the second bonding layer 210 serve as a belt of the general pneumatic tire instead.

Therefore, the uneven portion improves the ductility of the first bonding layer 120 and the second bonding layer 210 to minimize the increase in flexibility during the driving of the tire.

The material of the first bonding layer 120 and the second bonding layer 210 is preferably made of metal, but may be made of other materials having ductility and rigidity.

In addition, the first bonding layer 120 and the second bonding layer 210 may be formed in a plate shape.

When the first coupling layer 120 and the second coupling layer 210 are formed in a plate shape, it is possible to prevent tire separation due to the tread layer penetrating while driving.

That is, the first bonding layer 120 and the second bonding layer 210 having a plate shape may be used instead of the steel wire belt.

Although the number of the uneven parts of the first bonding layer 120 and the second bonding layer 210 is not limited, it is preferable to have three to five in the width direction of the tire, as shown in FIG. As described above, it is preferable to have 100 to 200 in the circumferential direction of the tire.

The uneven part is intended to prevent the tire from being separated during driving of the vehicle by connecting the tread replacement part 200 and the tire body part 200 while easily tirelessly deforming flatly when the tire is grounded on the road surface.

That is, the uneven portion formed in the tire width direction is for reinforcing the connecting force of the first bonding layer 120 and the second bonding layer 210 when cornering, and the uneven portion formed in the circumferential direction is straight braking and accelerated during acceleration. This is to strengthen the connecting force between the first bonding layer 120 and the second bonding layer 210.

When the number of the uneven parts is formed more than the above, the bonding force of the first bonding layer 120 and the second bonding layer 210 is increased, but the first bonding layer 120 and the second bonding layer 210 This increases the weight of the car, which in turn lowers the fuel economy of the car.

When the number of the uneven parts is less than that shown above, the bonding force between the first bonding layer 120 and the second bonding layer 210 is lowered.

The thickness of the first bonding layer 120 and the second bonding layer 210 is preferably made of 0.2mm to 1.5mm.

When the thickness of the first bonding layer 120 and the second bonding layer 210 is less than 0.2mm, it is difficult to withstand the stretching force when the tire is stretched, and when the thickness of the first bonding layer 120 and the second bonding layer 210 is greater than 1.5mm, the total weight of the tire is increased. Fuel economy is lowered.

The height H of the uneven portion is preferably formed to be 2 to 5 times the thickness of the first bonding layer 120.

When the height H of the uneven portion is less than twice the thickness of the first bonding layer 120, the deformation is not good when the tire is stretched, and when the height H exceeds five times the thickness of the first bonding layer 120. Deformation works well when the tire is stretched, but it leads to an increase in the weight of the tire, which reduces the fuel economy of the car.

In addition, a plurality of holes 400 are formed in the first bonding layer 120 and the second bonding layer 210.

The shape of the hole 400 may be modified in a circular or various shapes. In this embodiment, a circular shape was used as shown in FIG. Arrow B in FIG. 5 shows the advancing direction (circumferential direction) of a tire.

The hole 400 improves the bonding force between the tread layer 110 and the first bonding layer 120 and the bonding force between the carcass layer 220 and the second bonding layer 210. That is, a rubber pillar is formed in the hole 400 to improve the bonding force.

In addition, the diameter of the hole 400 is not particularly limited.

And the position of the hole 400 is formed in a zigzag with respect to the traveling direction of the tire, as shown in Figure 5 is advantageous to maintain the strength of the first bonding layer 120 and the second bonding layer 210 constant Do.

In addition, the holes 400 of the first bonding layer 120 and the holes 400 of the second bonding layer 210 may be formed in a zigzag manner so as not to overlap each other. That is, the reason is to prevent the first bonding layer 120 and the second bonding layer 210 from blocking the sharp foreign matter that enters the tread portion during driving.

In addition, the first bonding layer 120 and the second bonding layer 210 may be topping with rubber.

It is preferable that the topping rubber has excellent adhesive strength, low rubber permanent strain at the time of driving, and a high-strength topping rubber having a thickness of 0.3 mm to 2.0 mm.

As described above, when the first bonding layer 120 and the second bonding layer 210 are topping with rubber, the tread replacement unit 100 and the tire body unit 200 may be connected to the first bonding layer 120 when the vehicle is driven. It is strongly bonded by the friction of the second bonding layer 210.

The first coupling layer 120 and the second coupling layer 210 may be coupled by the bolt 300.

The bolt 300 is preferably coupled to the groove 111 of the tire to bond the first bonding layer 120 and the second bonding layer 210.

The bolt 300 is coupled to the groove 111 so that the bolt 300 does not come into contact with the road surface while the vehicle is driving.

The combination of the tread replacement unit 100 and the tire body 200 first removes the air pressure inside the tire. Then, after tightening the tread replacement unit 100 and the tire body 200, the air pressure is filled into the tire, and the bolt 300 is tightened.

Afterwards, when the vehicle is driven, rubbers topping by the friction between the first bonding layer 120 and the second bonding layer 210 are strongly adhered to each other so that the tread replacement part 100 and the tire body part 200 are Will be combined.

To remove the tread replacement unit 100 and the tire body 200, first, the bolt 300 is loosened, the air pressure in the tire is removed, and then the tread replacement unit 100 and the tire body 200 are dismantled. Just do it.

If the tread layer can be replaced as described above, the tire can be used for a long time by replacing the tread layer with rapid wear. In addition, a variety of treads can be selected and used according to the application. In other words, when a snowy day uses a general tire and when it snows, it is possible to respond to the snow road more efficiently than when the chain is inserted by replacing only a tread part having a pattern of snow tires. .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but many variations and modifications may be made without departing from the spirit and scope of the invention. And it goes without saying that they belong to the scope of the present invention.

1 is a cross-sectional view showing a state of a pneumatic tire according to the prior art.

Figure 2 is an exploded cross-sectional view showing a tread separation type pneumatic tire according to a first embodiment of the present invention.

3 is a cross-sectional view showing a combined state of the tread separation type pneumatic tire of FIG.

4 is a side cross-sectional view taken along line A-A of FIG. 2.

FIG. 5 is a perspective view illustrating the first bonding layer of FIG. 1. FIG.

<Description of Main Reference Signs>

100: tread replacement unit 110: tread layer

111: groove 120: first bonding layer

200: tire body portion 210: second bonding layer

220: carcass layer 230: inner liner layer

240: side wall portion 350: bead portion

300: bolt 400: hole

Claims (6)

A tread replacement part including a tread layer having an outer circumferential surface in contact with the ground and a first bonding layer bonded to the inside of the tread layer; And A tire body portion including a second bonding layer bonded to the first bonding layer and a carcass layer and an inner liner layer formed inside the second bonding layer, The tread separation type pneumatic tire, characterized in that the first coupling layer and the second coupling layer is formed with a plurality of irregularities to be engaged with each other along the tire circumferential direction and the tire width direction. The method of claim 1, The tread separation type pneumatic tire, characterized in that the first bonding layer and the second bonding layer is made of a metallic material. The method of claim 2, The tread separation type pneumatic tire, wherein the first coupling layer and the second coupling layer have a plate shape. The method of claim 3, wherein And the first bonding layer and the second bonding layer are topping with rubber. The method of claim 4, wherein And a plurality of holes formed in the first bonding layer and the second bonding layer to improve adhesion to rubber. The method of claim 5, And the first bonding layer and the second bonding layer are joined by bolts.

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