KR20110059061A - Vehicle tire improved kerf - Google Patents

Vehicle tire improved kerf Download PDF

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Publication number
KR20110059061A
KR20110059061A KR1020090115675A KR20090115675A KR20110059061A KR 20110059061 A KR20110059061 A KR 20110059061A KR 1020090115675 A KR1020090115675 A KR 1020090115675A KR 20090115675 A KR20090115675 A KR 20090115675A KR 20110059061 A KR20110059061 A KR 20110059061A
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KR
South Korea
Prior art keywords
cuff
tire
tread
kerf
block
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Application number
KR1020090115675A
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Korean (ko)
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KR101082954B1 (en
Inventor
김용근
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한국타이어 주식회사
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Priority to KR1020090115675A priority Critical patent/KR101082954B1/en
Publication of KR20110059061A publication Critical patent/KR20110059061A/en
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Publication of KR101082954B1 publication Critical patent/KR101082954B1/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
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/13—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
    • 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
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/11—Tread patterns in which the raised area of the pattern consists only of isolated elements, e.g. blocks
    • 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
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
    • B60C11/1204—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special shape of the sipe
    • 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
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
    • B60C11/1236—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special arrangements in the tread pattern
    • 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
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
    • B60C11/1236—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special arrangements in the tread pattern
    • B60C2011/1254—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special arrangements in the tread pattern with closed sipe, i.e. not extending to a groove
    • 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
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/13—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
    • B60C11/1307—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove walls
    • B60C2011/133—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove walls comprising recesses
    • 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
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/13—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
    • B60C11/1307—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove walls
    • B60C2011/1338—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove walls comprising protrusions

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Abstract

PURPOSE: A vehicle tire with improved kerf is provided to compensate the reduction of the grip force of tread, caused by the abrasion of the tire, with the extension parts of the kerf. CONSTITUTION: A vehicle tire comprises tread(1), sidewall(2), and bead. A block(3) is formed in the grounding surface of the tread, and kerf(4) is formed in the block. A plurality of extension parts(5) are formed inside the kerf, wherein the number of the extension parts is proportional to the depth of the kerf. The extension parts are in the shape of spherical dimple or long bar.

Description

커프를 개량한 자동차용 타이어{Vehicle tire improved kerf}Automotive tire improved kerf {Vehicle tire improved kerf}

본 발명은 자동차 타이어에 관한 것으로, 특히, 트레드에 커프를 형성시켜서 된 자동차용 타이어에 관한 것이다. 타이어가 마모되면 그립(Grip)력이 감소되고 마모 말기에는 초기에 비하여 현격히 그립력이 감소된다. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to automobile tires, and more particularly to automobile tires formed by forming a cuff on a tread. As the tire wears, the grip force is reduced, and the grip force is significantly reduced at the end of wear.

중하중용 타이어, 특히, 구동축에 취부되는 타이어는 견인력이 커야 함으로 양호한 그립(Grip)력을 필요로 한다.Heavy duty tires, especially tires mounted on the drive shaft, require a good grip force because of the high traction force.

타이어가 양호한 그립력을 가지게 하기 위하여 트레드를 블록(Block)형으로 형성시킨다던지, 각 블록에 커프를 형성시킨다던지 하는 기술이 알려져 있으며, 또한 블록에 커프를 형성시킴에 있어서도 커프를 트레드 표면에서 굴곡이지게 형성시킬 뿐 아니라 트레드 깊이 방향으로 굴곡이 지게 구성하여, 이른 바 커프를 3D로 굴곡이 지게 하여서 된 타이어가 제공된 바 있다.In order to make the tire have a good grip force, there is a technique of forming a tread in a block shape or a cuff in each block. Also, in forming a cuff in a block, the cuff is curved at the tread surface. In addition to forming a fork, the tire has been provided by forming a bend in the direction of the tread depth, so that the so-called cuff is bent in 3D.

그러나, 타이어가 마모되면 마모될수록 점차 그립(Grip)력이 감소되고 마모 말기에는 초기에 비하여 현격히 그립력이 감소된다. 그럼에도 불구하고, 종래의 타 이어에 형성된 커프는 타이어의 마모 진행에 따른 점진적 그립력 약화에 어떤 기여를 하는 바 없었다.However, as the tire wears, the grip force gradually decreases as the tire wears out, and the grip force decreases significantly compared to the initial stage at the end of the wear. Nevertheless, the cuffs formed on conventional tires have not made any contribution to the gradual weakening of the grip force as the tire wears.

이에 본 발명은, 타이어가 마모되면 마모될수록 점차 그립(Grip)력이 감소되고 마모 말기에는 초기에 비하여 현격히 그립력이 감소됨에도 불구하고, 종래의 타이어에 형성된 커프가 타이어의 마모 진행에 따른 점진적 그립력 약화에 어떤 기여를 하는 바 없음을 간파하고, 커프가 타이어의 마모 진행에 따라 트레드의 그립력을 점차 강화할 수 있게 하여서 된 타이어를 제공하여야 한다는 과제를 해결하고자 한다.Accordingly, the present invention, although the grip force gradually decreases as the tire wears and the grip force decreases significantly compared to the initial stage at the end of the wear, the cuff formed in the conventional tire weakens the gradual grip force as the tire wears. It is intended to solve the problem of providing a tire by allowing the cuff to gradually increase the grip force of the tread as the tire wears.

위와 같은 과제를 해결하기 위하여 본 발명은, 타이어의 트레드에 형성시키는 커프에 깊이에 따라 커프의 깊이가 점점 깊어 갈 수록 점점 증가된 확장부가 설치되어 트레드의 마모에 따라 점점 증가된 수의 확장부가 트레드 표면에 노출되게하고, 노출된 확장부가 그립력을 강화시킬 수 있게 하여서 된 타이어를 제공한다.In order to solve the above problems, the present invention, the cuff to be formed on the tread of the tire, the depth of the cuff is gradually increased as the depth of the cuff is installed in accordance with the depth of the tread is gradually increased by the wear of the tread To expose the surface and allow the exposed extensions to enhance grip.

위와 같은 본 발명은 타이어의 마모에 따라, 커프에 설치된 확장부로 인해 접지 에지(edge) 길이가 길어지게 되어 길어진 접지 에지로 인한 그립력이 강화되며, 따라서, 본 발명은 타이어의 마모에 따른 그립력의 약화를 보충하는 효과가 있다.According to the present invention as the wear of the tire, the length of the ground edge (edge) is extended due to the expansion portion installed in the cuff is enhanced the grip force due to the longer ground edge, thus, the present invention weakens the grip force due to the wear of the tire It is effective to supplement.

이와 같은 본 발명을 첨부된 도면에 의하여 설명한다.This invention will be described with reference to the accompanying drawings.

트레드(1)와 사이드월(2) 및 비드부(도시되지 않음)로 구성되고, 트레드(1)의 접지면에 블록(3)이 형성되고, 블록(3)에 커프(4)가 형성된 자동차용 타이어에 있어서, 본 발명은, 커프(4)의 내부에 다수의 확장부(5)를 형성시키되, 확장부(5)는 커프(4)의 깊이가 깊을 수록 점점 더 많은 다수개로 형성시켜 커프의 깊이가 깊을수록 커프에지(41)의 길이를 연장시킨 타이어를 제공한다.An automobile having a tread 1, a sidewall 2, and a bead part (not shown), a block 3 formed on the ground surface of the tread 1, and a cuff 4 formed on the block 3. In the tire for the present invention, the present invention forms a plurality of extensions 5 inside the cuff 4, and the extensions 5 are formed in an increasing number as the depth of the cuff 4 increases. The deeper the depth is, the longer the length of the cuff edge 41 is.

타이어의 마모가 진행되어 블록(3)이 닳아 높이가 낮아지게 되면 제동성능이 떨어지게 되는데, 이러한 경우 커프에지(41)의 길이가 마모가 진행될 수록 커지게 된다면 제동성능 유지에 긍정적 요소로 작용하게 된다.As the wear of the tire proceeds and the block 3 wears down and the height decreases, the braking performance decreases. In this case, if the length of the cuff edge 41 increases as the wear progresses, it acts as a positive factor in maintaining the braking performance. .

커프 에지 길이는 커프 에지가 굴곡질수록 그 길이가 길어지게 된다. 그리하여 본 발명은 커프의 깊이가 깊을수록 커프에지의 길이가 연장될 수 있도록 커프 내부에 커프(4)의 확장부(5)를 형성시켜 구성된 타이어를 제공하는 것이다.The cuff edge length becomes longer as the cuff edge is curved. Thus, the present invention is to provide a tire formed by forming the extension portion 5 of the cuff (4) in the cuff so that the depth of the cuff deeper as the depth of the cuff is extended.

즉 타이어가 도 2의(A)와 같이 a-a' 선까지 마모될 경우, 커프에지(41)는 도 2의(B)와 같이 확장부(5)의 굴곡만큼 길이가 연장되는 것이다. That is, when the tire is worn to the line a-a 'as shown in FIG. 2A, the cuff edge 41 is extended in length by the bending of the extension 5 as shown in FIG.

본 발명은 확장부(5)의 설치로 인한 커프에지(41)의 길이가 커프(4)의 깊이 가 깊을수록 길어지게 하여야 한다는 점에 특징이 있으므로, 이러한 특징적 조건을 실현하기 위하여, 본 발명은 깊이가 깊을수록 확장부의 수효가 증가된 커프를 가지는 타이어를 제공한다. 확장부의 수효가 많으면 많을수록 굴곡이 많아져 커프에지(41)의 길이가 연장될 것이기 때문이다. The present invention is characterized in that the length of the cuff edge 41 due to the installation of the extension portion 5 is to be longer as the depth of the cuff 4 is deeper, in order to realize such a characteristic condition, Deeper depths provide a tire having a cuff with an increased number of extensions. This is because the more the number of the expansion part, the more the curvature increases and the length of the cuff edge 41 will be extended.

이러한 확장부(5)는 첨부된 도면에 도시된 바와 같이 공 모양의 딤플로 구성시킬 수 있으며, 도 1의 (가)(나) 및 도2의(B)에서 도시된 바와 같이 블록의 일측(31)에는 볼록하도록, 다른 블록의 일측(32)에는 오목 하도록 구성하는 것이 바람직하다.The extension 5 may be configured as a ball-shaped dimple as shown in the accompanying drawings, and one side of the block as shown in (a) and (b) of FIG. 31 is preferably convex, and one side 32 of the other block is preferably concave.

또한 확장부는, 다음 일련의 확장부까지 연속성을 유지할 수 있도록 깊이 방향으로 기다란 모양의 돌출막대로 형성시킬 수 있다. 따라서, 본 발명은 확장부(5)의 형상이나 모양에 어떤 제한을 두지 아니한다. In addition, the extension portion may be formed with an elongated protrusion bar in the depth direction to maintain continuity up to the next series of extension portions. Therefore, the present invention does not place any limitation on the shape or shape of the extension 5.

도1은 본 발명의 요부 발췌 사시도Figure 1 is a perspective view of the main portion of the present invention

도2는 본 발명의 마모에 따른 커프에지 길이를 설명하는 설명도로서, (A)는 커프선을 기준으로하는 종단면도이고, (B)는 본 발명의 커프가 형성된 블록의 평면도, (C)는 도2(A)에서 마모가 a-a'라인까지 진행된 상태를 설명한 종단면도이다.Figure 2 is an explanatory diagram illustrating the length of the cuff edge according to the wear of the present invention, (A) is a longitudinal cross-sectional view based on the cuff line, (B) is a plan view of a block in which the cuff of the present invention is formed, (C) FIG. 2 is a longitudinal sectional view illustrating a state in which wear progresses to the line a-a 'in FIG.

<도면의 주요 부호에 대한 설명>DESCRIPTION OF THE RELATED ART [0002]

1. 트레드1. Tread

2. 사이드월2. Sidewall

3. 블록3. Block

31. 32. 블록의 일측31. 32. One side of the block

4. 커프4. Cuff

41. 커프에지41.Cuff Edge

5. 확장부5. Extension

Claims (2)

트레드와 사이드월 및 비드부로 구성되고, 트레드의 접지면에 블록이 형성되고, 블록에 커프가 형성된 자동차용 타이어에 있어서, 커프의 내부에 다수의 확장부를 형성시키되, 확장부는 커프의 깊이가 깊을 수록 점점 더 많은 다수개로 형성시켜 구성된 것을 특징으로 하는 커프를 개량한 자동차용 타이어.In an automobile tire composed of a tread, a sidewall and a bead part, a block is formed on the ground surface of the tread, and a cuff is formed on the block, a plurality of extension parts are formed inside the cuff, and the extension part has a deeper cuff depth. Car tires improved cuff characterized in that formed by forming more and more. 제1항에 있어서, 확장부는 공 모양의 딤플이나 깊이 방향으로 기다란 모양의 돌출막대 중에서 선택된 것임을 특징으로 하는 커프를 개량한 자동차용 타이어.The tire of claim 1, wherein the extension portion is selected from a ball dimple or an elongated protrusion bar in a depth direction.
KR1020090115675A 2009-11-27 2009-11-27 Vehicle tire improved kerf KR101082954B1 (en)

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KR1020090115675A KR101082954B1 (en) 2009-11-27 2009-11-27 Vehicle tire improved kerf

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Application Number Priority Date Filing Date Title
KR1020090115675A KR101082954B1 (en) 2009-11-27 2009-11-27 Vehicle tire improved kerf

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KR101082954B1 KR101082954B1 (en) 2011-11-11

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101513363B1 (en) * 2013-10-23 2015-04-22 한국타이어 주식회사 Kerf structure for snow tire
KR20200030908A (en) * 2018-09-13 2020-03-23 넥센타이어 주식회사 Pneumatic tire

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3516647B2 (en) 2000-09-27 2004-04-05 東洋ゴム工業株式会社 Pneumatic tire

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101513363B1 (en) * 2013-10-23 2015-04-22 한국타이어 주식회사 Kerf structure for snow tire
CN104553626A (en) * 2013-10-23 2015-04-29 韩国轮胎株式会社 Kerf structure for snow tire
CN104553626B (en) * 2013-10-23 2017-01-11 韩国轮胎株式会社 Kerf structure for snow tire
KR20200030908A (en) * 2018-09-13 2020-03-23 넥센타이어 주식회사 Pneumatic tire

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