KR101890371B1 - pneumatic tire - Google Patents

pneumatic tire Download PDF

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Publication number
KR101890371B1
KR101890371B1 KR1020160015066A KR20160015066A KR101890371B1 KR 101890371 B1 KR101890371 B1 KR 101890371B1 KR 1020160015066 A KR1020160015066 A KR 1020160015066A KR 20160015066 A KR20160015066 A KR 20160015066A KR 101890371 B1 KR101890371 B1 KR 101890371B1
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KR
South Korea
Prior art keywords
belt layer
layer
carcass
carcass layer
belt
Prior art date
Application number
KR1020160015066A
Other languages
Korean (ko)
Other versions
KR20170093534A (en
Inventor
이영진
정성현
Original Assignee
넥센타이어 주식회사
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Priority to KR1020160015066A priority Critical patent/KR101890371B1/en
Publication of KR20170093534A publication Critical patent/KR20170093534A/en
Application granted granted Critical
Publication of KR101890371B1 publication Critical patent/KR101890371B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/0007—Reinforcements made of metallic elements, e.g. cords, yarns, filaments or fibres made from metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/0042—Reinforcements made of synthetic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/02—Carcasses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/02—Carcasses
    • B60C9/12—Carcasses built-up with rubberised layers of discrete fibres or filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C2009/2074—Physical properties or dimension of the belt cord

Abstract

An embodiment of the present invention is a tire comprising a tread portion, a sidewall portion extending from the tread portion, and a bead portion provided at an end of the sidewall portion, the tire comprising: a belt layer disposed under the tread portion; And a carcass layer extending along the tread portion, the sidewall portion and the bead portion, wherein at least one of the belt layer and the carcass layer comprises a first layer and a second layer superimposed on each other, Wherein the stiffness is different from the stiffness of the second layer.

Description

Pneumatic tire < RTI ID = 0.0 >

Embodiments of the present invention relate to a light emitting device and a control method thereof.

Tires play a very important role in terms of driving and braking of the vehicle in contact with the ground.

The use of the tire varies according to the running condition of the vehicle and the running characteristics of the vehicle, and the belt layer and the carcass layer included in the tire are designed for various purposes.

Korean Patent Publication No. 2015-0057610

Embodiments of the present invention provide pneumatic tires that can satisfy various performance.

An embodiment of the present invention is a tire including a tread portion, a side wall portion extending from the tread portion, and a bead portion provided at an end of the side wall portion, the tire comprising: a belt layer disposed at a lower portion of the tread portion; And a carcass layer disposed below the belt layer and extending along the tread portion, the sidewall portion, and the bead portion, wherein the carcass layer comprises a first carcass layer and a second carcass layer, Wherein the stiffness of the first carcass layer on the outside is less than the stiffness of the second carcass layer on the inside and the diameter of the fiber cord of the first carcass layer is greater than the stiffness of the second carcass layer Layer tire cord is less than the diameter of the fiber cord of the layer. And wherein the belt layer comprises a first belt layer and a second belt layer, each of the first belt layer and the second belt layer comprising a steel cord, wherein the carbon content of the steel cord of the first belt layer The carbon content of the steel cord of the second belt layer may be different.

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In the present embodiment, each of the steel cord of the first belt layer and the steel cord of the second belt layer may further include a first element selected from the group including Si, P, Mn, and S.

In the present embodiment, the content of the first element included in the steel cord of the first belt layer may be different from the content of the first element included in the steel cord of the second belt layer.

An embodiment of the present invention is a tire including a tread portion, a side wall portion extending from the tread portion, and a bead portion provided at an end of the side wall portion, the tire comprising: a belt layer disposed at a lower portion of the tread portion; And a carcass layer disposed below the belt layer and extending along the tread portion, the sidewall portion, and the bead portion, the carcass layer comprising a first carcass layer on the outer side and a second carcass layer on the inner side, Wherein the stiffness of the first carcass layer is less than the stiffness of the second carcass layer and the diameter of the fiber cord of the first carcass layer is greater than the stiffness of the fibers of the second carcass layer, Wherein the belt layer comprises a first belt layer and a second belt layer, each of the first belt layer and the second belt layer comprising steel cords, The number of steel cords may be different from the number of steel cords per unit area of the second belt layer.

In this embodiment, the diameter of the steel cord of the first belt layer may be different from the diameter of the steel cord of the second belt layer.
In the present embodiment, each of the first carcass layer and the second carcass layer may include a fiber cord formed of a polymer.

delete

delete

In this embodiment, the polymer may comprise PET.

Other aspects, features, and advantages will become apparent from the following drawings, claims, and detailed description of the invention.

According to the embodiments of the present invention, handling and noise and vibration characteristics are advantageous without increasing weight, and / or performance of rumble and resonance tone, rotational resistance and the like can be improved.

1 is a perspective view of a pneumatic tire according to an embodiment of the present invention.
2 is a cross-sectional view taken along line II-II in Fig.
3 is an enlarged cross-sectional view of part of FIG.
4 is a perspective view schematically illustrating a belt layer according to an embodiment of the present invention.
5 is a perspective view schematically illustrating a belt layer according to another embodiment of the present invention.
6 is a perspective view schematically illustrating a belt layer according to another embodiment of the present invention.
7 is a cross-sectional view excerpting VII shown in Fig.
8 is a perspective view showing a fiber cord.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention and methods of achieving them will be apparent with reference to the embodiments described in detail below with reference to the drawings. However, the present invention is not limited to the embodiments described below, but may be implemented in various forms.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like or corresponding components throughout the drawings, and a duplicate description thereof will be omitted .

In the following embodiments, the terms first, second, and the like are used for the purpose of distinguishing one element from another element, not the limitative meaning.

In the following examples, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise.

In the following embodiments, terms such as inclusive or possessive are intended to mean that a feature, or element, described in the specification is present, and does not preclude the possibility that one or more other features or elements may be added.

In the following embodiments, when a part of a film, an area, a component or the like is on or on another part, not only the case where the part is directly on the other part but also another film, area, And the like.

In the drawings, components may be exaggerated or reduced in size for convenience of explanation. For example, the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of explanation, and thus the present invention is not necessarily limited to those shown in the drawings.

If certain embodiments are otherwise feasible, the particular process sequence may be performed differently from the sequence described. For example, two processes that are described in succession may be performed substantially concurrently, and may be performed in the reverse order of the order described.

In the following embodiments, when a film, an area, a component, or the like is referred to as being connected, not only the case where the film, the region, and the components are directly connected but also the case where other films, regions, And indirectly connected.

FIG. 1 is a perspective view of a pneumatic tire according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line II-II of FIG. 1, and FIG. 3 is an enlarged sectional view of a portion of FIG.

1 to 3, the pneumatic tire 1 includes a tread portion 110, a side wall portion 120 connected to the tread portion 110, a bead portion 130 located at a lower portion of the side wall portion 120, A belt layer 200 and a carcass layer 300 positioned below the tread portion 110 and an inner liner 150 attached to the inner surface of the carcass layer 300. [

The tread portion 110 is located at the outermost side of the tire and is formed of a thick rubber layer, and transmits the driving force and the braking force of the vehicle to the ground. On the surface of the tread portion 110, blocks 116 partitioned by tread patterns 114 and tread patterns 114 for handling stability, traction, and braking can be located.

The tread patterns 114 may include grooves for drainage during running on wet road surfaces and sipes for improving traction and braking forces. The groove may include a circumferential groove coinciding with the running direction of the vehicle and a transverse groove between the circumferential groove. The sipes are formed in the block 116 and may be grooves having a smaller size than the grooves. The siphon absorbs moisture at the time of traveling on a wet road surface and breaks the water film, so that the driving force and the braking force of the pneumatic tire 100 can be increased.

The block 116 occupies most of the tread portion 110 and directly contacts the ground to transmit the driving force and braking force of the vehicle to the ground.

The sidewall portion 120 is disposed to extend downward from an end portion of the tread portion 110. The side wall portion 120 is a side portion of the pneumatic tire 1 to protect the carcass layer 300, provide lateral stability of the pneumatic tire 100, and enhance ride comfort by performing a bending motion. In addition, the side wall portion 120 serves to transmit the torque of the engine received through the drive shaft to the tread portion 110.

The bead portion 130 is provided at the end of the side wall portion 120 and serves to mount the pneumatic tire 1 to the rim. The bead portion 130 may include a bead core 132 and a bead filler 134. The bead core 132 may be formed by twisting a plurality of rubber-coated steel wires, and the bead filler 134 may be rubber adhered to the bead core.

A cap ply 140 may further be provided between the tread portion 110 and a belt layer 200 to be described later. The cap ply 140 can improve performance when traveling with a special cord fabric attached on the belt layer 200. The cap ply 140 may comprise, for example, polyester synthetic fibers.

The inner liner 150 is a layer for preventing air leakage of the pneumatic tire 1 in place of the tube, and may be made of a rubber layer having excellent airtightness. For example, the inner liner 150 can be made of butyl rubber or the like having a high density, and can maintain the air pressure in the pneumatic tire 1. [

The belt layer 200 is disposed beneath the tread portion 110 to reduce the impact of the road surface while the vehicle is running and to protect the carcass layer 300.

The belt layer 200 includes a first belt layer 210 and a second belt layer 230 superimposed on each other. The first belt layer 210 is positioned on the second belt layer 230 and the width W1 of the first belt layer 210 is less than the width W2 of the second belt layer 230. [

The carcass layer 300 is disposed below the belt layer 200 and forms the skeleton of the pneumatic tire 1. The pneumatic tire 1 can withstand the load, .

The carcass layer 300 includes a first carcass layer 310 and a second carcass layer 330 that are overlapped with each other. The first carcass layer 310 is turned up at the bead portion 130 and extends toward the tread portion 110. One end 310E of the turned up first carcass layer 310 may extend to cover the inside of the side wall portion 120 to improve the rigidity of the side wall portion 120. [ The second carcass layer 330 is positioned on the first carcass layer 320 and extends toward the tread portion 110 at the bead portion 130 so that the second carcass layer 330, One end 310E of the first carcass layer 310 may be shorter than the one end 310E of the first carcass layer 310 to cover the inside of the bead portion 130. [

The plurality of layers included in at least one layer of the belt layer 200 and the carcass layer 300 are formed to have different stiffnesses. Hereinafter, the belt layer 200 and the carcass layer 300 having a plurality of layers having different rigidities will be described in detail with reference to FIGS. 4 to 8. FIG.

First, consider the belt layer 200.

4 is a perspective view schematically illustrating a belt layer according to an embodiment of the present invention.

4, the belt layer 200 includes a first belt layer 210 and a second belt layer 230, wherein the first belt layer 210 and the second belt layer 230 are made of steel material And steel members 213 and 233 covering steel cords 211 and 231 and steel cords 211 and 231, respectively.

The steel cords 211 and 231 may be formed of carbon steel containing iron and carbon or may be formed of special steel containing elements other than iron and carbon (hereinafter referred to as first element). The first element may be at least one of Si, P, Mn, and S. According to one embodiment, the steel cords 211 and 231 may be formed by combining multiple strands of mono wires, for example, 2-3 strands.

The rigidity of the first belt layer 210 and the second belt layer 230 are different from each other. For example, the stiffness of the first belt layer 210 may be greater than the stiffness of the second belt layer 230. Or the stiffness of the first belt layer 210 may be less than the stiffness of the second belt layer 230.

According to one embodiment, the rigidity of the first belt layer 210 and the second belt layer 230 can be differentiated by adjusting the content of carbon and / or the first element contained in the steel cord 211 .

As a comparative example of the present invention, when the first belt layer 210 and the second belt layer 230 are formed of the same material to have the same rigidity, the handling (R & H) performance is favorable if the rigidity is relatively large, And vibration (NVH). In addition, when the first belt layer 210 and the second belt layer 230 are made of the same material and have the same rigidity, when the rigidity is relatively small, it is advantageous in terms of performance of handling but of glass in noise and vibration .

However, according to the embodiment of the present invention, since the first belt layer 210 and the second belt layer 230 are formed to have different rigidities, a belt having a handling performance and mutually complementary characteristics advantageous to noise and vibration 0.0 > 200 < / RTI >

5 is a perspective view schematically illustrating a belt layer according to another embodiment of the present invention.

5, the belt layer 200A is different from the belt layer 200 in which the rigidity of the first belt layer 210 and the second belt layer 230 are made different from each other in the above- And the diameters of the steel cords 211A and 231A are different from each other.

5, the diameter of the steel cord 211A of the first belt layer 210A is formed to be larger than the diameter of the steel cord 231A of the second belt layer 230A, The stiffness may be greater than the stiffness of the second belt layer 230A.

5, the diameter of the steel cord 211A of the first belt layer 210A is larger than the diameter of the steel cord 231A of the second belt layer 230A. However, the present invention is not limited thereto. The diameter of the steel cord 231A of the second belt layer 230A is formed to be larger than the diameter of the steel cord 211A of the first belt layer 210A so that the diameter of the second belt layer 230A, The rigidity of the first belt layer 210A may be greater than the rigidity of the first belt layer 210A.

6 is a perspective view schematically illustrating a belt layer according to another embodiment of the present invention.

Referring to FIG. 6, the belt layer 200B includes a first belt layer 210B and a second belt layer 230B having different stiffnesses.

The arrangement density of the steel cords 211B and 231B of the first belt layer 210B and the second belt layer 230B may be different from each other. For example, the number of steel cords 211B of the first belt layer 210B and the number of steel cords 231B of the second belt layer 230B per unit area UA are different from each other, 210B and the second belt layer 230B may vary.

6, the number of the steel cords 211B of the first belt layer 210B per unit area UA is greater than the number of the steel cords 231B of the second belt layer 230B, Are not limited thereto. According to another embodiment, the number of steel cords 231B of the second belt layer 230B per unit area UA is formed to be larger than the number of the steel cords 211B of the first belt layer 210B, The rigidity of the two belt layer 230B may be greater than the rigidity of the first belt layer 210A.

Next, the carcass layer 300 will be described.

Fig. 7 is a cross-sectional view excerpted from Fig. 1 shown in Fig. 1, and Fig. 8 is a perspective view showing a fiber cord.

7, the first carcass layer 310 and the second carcass layer 330 include rubber materials 313 and 333 covering the fiber cords 311 and 331 and the fiber cords 311 and 331 . As shown in FIG. 8, the fiber cords 311 and 331 are formed by twisting a plurality of fibers 301 made of monofilaments. The fiber cords 311 and 331 may be formed of a polymer such as polyethylene terephthalate (PET).

The diameter of the fiber cord 311 of the first carcass layer 310 is smaller than the diameter of the fiber cord 331 of the second carcass layer 330 so that the rigidity of the first carcass layer 310 2 carcass layer 330, as shown in FIG.

As a comparative example of the present invention, when the first carcass layer 310 and the second carcass layer 330 are formed to have the same rigidity, if the stiffness is relatively large at this time, a glass or resonance sound from the side of the rumble Which is disadvantageous. When the first carcass layer 310 and the second carcass layer 330 are formed to have the same rigidity, the rigidity is relatively small at this time, the resonance sound is advantageous in terms of glass and rumble.

However, according to one embodiment of the present invention, by forming the first carcass layer 310 and the second carcass layer 330 to have different rigidities, it is possible to obtain a structure having mutually complementary characteristics advantageous for rumble performance and resonance sound A carcass layer 300 may be provided.

Tables 1 and 2 below show the performance test results of pneumatic tires.

In Table 1, Comparative Example 1 is a test result of pneumatic tires including first and second belt layers having high rigidity. Examples 1 and 2 show the results of tests on air containing first and second belt layers having different stiffness This is the test result of the mouth tires.

In Table 2, Comparative Example 2 is a test result of the pneumatic tire including the first and second carcass layers having high rigidity, and Examples 3 and 4 include the first and second carcass layers having different stiffness Which is a test result of a pneumatic tire.

Stiffness of belt layer
(First belt layer / second belt layer) Comparative Example 1 R & H Comparative Example 1 NVH Comparative Example 1 River / River - - Example 1 River / Medicine superiority equal Example 2 Medicine / River equal superiority

Stiffness of carcass layer
(First carcass layer / second carcass layer) Comparative Example 2 Contrast Rumble Comparative Example 2 A contrast resonance sound Comparative Example 2 River / River - - Example 3 River / Medicine superiority equal Example 4 Medicine / River equal superiority

Referring to Table 1, even if the same belt layers having strong stiffness are used (Comparative Example 1), it is possible to use a belt layer having a high rigidity and a belt layer having a low rigidity (Examples 1 and 2) R & H) performance. In addition, in Example 2, not only the handling performance equivalent to that of Comparative Example 1, but also the noise and vibration performance (NVH) can be ensured, and handling, noise and vibration performance (NVH) can be satisfied.

Referring to Table 2, even if the same carcass layers having strong rigidity are used (Comparative Example 2), only the carcass layer having high rigidity and the carcass layer having low rigidity (Examples 3 and 4) It can be confirmed that the dominant rumble performance can be secured. In addition, in Example 4, not only rumble performance equivalent to that of Comparative Example 2 but also resonance sound performance can be secured, thereby satisfying the performance of rumble and resonance sound.

As described with reference to [Table 1] and [Table 2], by changing the positions of the belt layer / carcass layer having high rigidity and the belt layer / carcass layer having low rigidity, handling, noise and vibration, rumble, resonance It is possible to design various pneumatic tires for each purpose while sufficiently ensuring the above-mentioned performance such as sound.

9 is a graph showing the results of evaluating the rotation resistance RRc according to Comparative Example 1, Example 1 and Example 2 shown in Table 1, and FIG. 10 is a graph showing the results of Comparative Examples 2, 3, and 4 (RRc) of the rotor.

Referring to FIGS. 9 and 10, it can be seen that the pneumatic tires according to the embodiments all improve the rolling resistance.

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 exemplary embodiments, and that various changes and modifications may be made therein without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

200: Belt layer
210: first belt layer
211: Steel cord
213: Rubber material
230: second belt layer
231: Steel cord
233: Rubber material
300: Carcass layer
310: first carcass layer
311: Fiber cord
313: Rubber material
330: second carcass layer
331: Fiber cord
333: Rubber material

Claims (12)

A tire comprising a tread portion, a side wall portion extending from the tread portion, and a bead portion provided at an end of the side wall portion,
A belt layer disposed below the tread portion; And
And a carcass layer disposed below the belt layer and extending along the tread portion, the sidewall portion, and the bead portion,
Wherein the carcass layer comprises an outer first carcass layer and an inner second carcass layer wherein the stiffness of the first carcass layer is less than the stiffness of the second carcass layer,
The diameter of the fiber cord of the first carcass layer is smaller than the diameter of the fiber cord of the second carcass layer,
Wherein the belt layer comprises a first belt layer and a second belt layer, wherein each of the first belt layer and the second belt layer comprises a steel cord,
Wherein the carbon content of the steel cord of the first belt layer and the carbon content of the steel cord of the second belt layer are different. delete delete The method according to claim 1,
The steel cord of the first belt layer and the steel cord of the second belt layer,
Further comprising a first element selected from the group consisting of Si, P, Mn, and S. 5. The method of claim 4,
Wherein the content of the first element contained in the steel cord of the first belt layer and the content of the first element contained in the steel cord of the second belt layer are different. A tire comprising a tread portion, a side wall portion extending from the tread portion, and a bead portion provided at an end of the side wall portion,
A belt layer disposed below the tread portion; And
And a carcass layer disposed below the belt layer and extending along the tread portion, the sidewall portion, and the bead portion,
Wherein the carcass layer comprises an outer first carcass layer and an inner second carcass layer wherein the stiffness of the first carcass layer is less than the stiffness of the second carcass layer,
The diameter of the fiber cord of the first carcass layer is smaller than the diameter of the fiber cord of the second carcass layer,
Wherein the belt layer comprises a first belt layer and a second belt layer, wherein each of the first belt layer and the second belt layer comprises a steel cord,
Wherein the number of steel cords per unit area of the first belt layer is different from the number of steel cords per unit area of the second belt layer. 7. The method according to claim 1 or 6,
Wherein the diameter of the steel cord of the first belt layer is different from the diameter of the steel cord of the second belt layer. The method according to claim 1,
Wherein each of the first carcass layer and the second carcass layer comprises a fiber cord formed of a polymer. delete 9. The method of claim 8,
Wherein the polymer comprises polyethylene terephthalate (PET). delete delete
KR1020160015066A 2016-02-05 2016-02-05 pneumatic tire KR101890371B1 (en)

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KR102113313B1 (en) * 2018-08-13 2020-05-20 넥센타이어 주식회사 Pneumatic tire
KR102126000B1 (en) * 2018-10-26 2020-06-24 넥센타이어 주식회사 Pneumatic tire

Citations (2)

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Publication number Priority date Publication date Assignee Title
JP2007237922A (en) * 2006-03-08 2007-09-20 Sumitomo Rubber Ind Ltd Pneumatic tire
JP2009083522A (en) * 2007-09-27 2009-04-23 Sumitomo Rubber Ind Ltd Run flat tire

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Publication number Priority date Publication date Assignee Title
JP3535581B2 (en) * 1994-09-07 2004-06-07 住友ゴム工業株式会社 Pneumatic radial tire
JPH08188851A (en) * 1995-01-11 1996-07-23 Kobe Steel Ltd Steel for steel cord, excellent in corrosion resistance
US9907570B2 (en) 2013-08-23 2018-03-06 Oscor Inc. Steerable medical devices

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007237922A (en) * 2006-03-08 2007-09-20 Sumitomo Rubber Ind Ltd Pneumatic tire
JP2009083522A (en) * 2007-09-27 2009-04-23 Sumitomo Rubber Ind Ltd Run flat tire

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