KR100902022B1 - Heavy duty vehicle tire - Google Patents

Heavy duty vehicle tire Download PDF

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Publication number
KR100902022B1
KR100902022B1 KR1020070120225A KR20070120225A KR100902022B1 KR 100902022 B1 KR100902022 B1 KR 100902022B1 KR 1020070120225 A KR1020070120225 A KR 1020070120225A KR 20070120225 A KR20070120225 A KR 20070120225A KR 100902022 B1 KR100902022 B1 KR 100902022B1
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KR
South Korea
Prior art keywords
grooves
groove
tread
tire
diameter
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KR1020070120225A
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Korean (ko)
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KR20090053390A (en
Inventor
손준호
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한국타이어 주식회사
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Priority to KR1020070120225A priority Critical patent/KR100902022B1/en
Priority to CN2008101770889A priority patent/CN101439648B/en
Publication of KR20090053390A publication Critical patent/KR20090053390A/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
    • B60C11/0327—Tread patterns characterised by special properties of 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
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/18—Tyre cooling arrangements, e.g. heat shields
    • B60C23/19—Tyre cooling arrangements, e.g. heat shields for dissipating heat
    • 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
    • B60C2011/0337—Tread patterns characterised by particular design features of the pattern
    • B60C2011/0339—Grooves
    • 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
    • B60C2200/00—Tyres specially adapted for particular applications
    • B60C2200/06—Tyres specially adapted for particular applications for heavy duty vehicles

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

Abstract

본 발명은 중차량용 타이어에 관한 것으로, 특히, 숄더부의 러그에 형성시키는 홈을 개량하여서 된 타이어에 관한 것이다. 종래의 타이어에 있어서는 숄더부의 러그에 형성시키는 홈은 그 크기가 작아 방열성능이 부족하고 트레드와 사이드월 사이의 움직임을 차단하는 효과가 적었던 바, 본 발명은 숄더 러그부에 주행 방향으로 기다란 홈을 형성시키되 홈의 간격이 러그와 러그 사이 간격의 40~45%가 되게 간헐적으로 형성시키며, 홈의 양단을 홈의 직경보다 큰 직경을 가지는 구(球) 형태의 공간부로 형성시켜서 된 타이어를 제공하여, 숄더부의 강성을 유지하면서도 트레드와 사이드월 사이를 이격시키어 트레드의 움직임이 사이드월에 전달되는 것을 감소시키며, 나아가 방열 효과를 상승시킬 수 있게 한 것임.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tire for a heavy vehicle, and more particularly, to a tire obtained by improving a groove formed in a lug of a shoulder portion. In the conventional tire, the grooves formed in the lugs of the shoulder portion have a small size and thus have a low heat dissipation performance and have little effect of blocking the movement between the tread and the sidewall. The intermittent groove is formed intermittently such that the space between the grooves is 40 to 45% of the distance between the lugs and the grooves, and both ends of the grooves are formed by a spherical space having a diameter larger than the diameter of the grooves. Thus, while maintaining the stiffness of the shoulder portion is spaced between the tread and the sidewall to reduce the transmission of the tread to the sidewall, and further increase the heat dissipation effect.

타이어, 디커플링 그루브, Decoupling groove, 방열효과, 편마모 방지. Tires, decoupling grooves, decoupling grooves, heat dissipation, and wear protection.

Description

중하중 차량용 타이어{Heavy duty vehicle tire}Heavy duty vehicle tire

본 발명은 중차량용 타이어에 관한 것으로, 특히, 숄더부에 디커플링 그루브를 형성시켜서 된 타이어에 관한 것이다.TECHNICAL FIELD The present invention relates to a tire for a heavy vehicle, and more particularly, to a tire formed by forming a decoupling groove on a shoulder portion.

스틸 소재의 카카스 1매와, 3~4장으로 구성된 벨트층을 가지며 주로 트럭, 버스용으로 사용되는 중하중용 타이어에서 내구성능과 트레드부의 편마모는 타이어의 품질을 크게 좌우하는 요소로써, 그에 대한 성능 향상을 위해 많은 패턴이 고안되고 사용되고 있다.In the heavy-duty tire used for trucks and buses, which has a carcass made of steel and 3 to 4 sheets, durability and tread wear on the tread part greatly influence the quality of the tire. Many patterns have been devised and used to improve performance.

특히, 트레드부와 사이드부가 만나는 숄더 부위에서는 편마모등의 발생율이 타부위에 비해 높고, 그로 인해 숄더 부위에서의 패턴 형상에 대한 많은 적용 사례등이 있다.Particularly, in the shoulder portion where the tread portion and the side portion meet, the incidence of uneven wear is higher than that of the other portion, and thus there are many application examples for the pattern shape at the shoulder portion.

그 중 하나가 숄더 러그 패턴으로써, 숄더 러그 패턴은 타이어의 숄더부의 편마모를 줄이고, 타이어 내구성을 올리는데 기여하게 된다. 그러나, 이는 트레드의 움직임이 사이드월에 그대로 전달되며 트레드에 발생되는 편마모 현상을 감소시 키는 효과가 충분하지 못한 결점이 있다.One of them is the shoulder lug pattern, and the shoulder lug pattern contributes to reducing uneven wear of the shoulder portion of the tire and increasing tire durability. However, this has the drawback that the movement of the tread is transmitted to the sidewall as it is, and the effect of reducing the side effect of wear on the tread is insufficient.

그리고, 근래에는 숄더 부위에 좁은 원주 방향의 그루브를 형성하는 디커플링 그루브(Decopling Groove) 패턴을 적용함으로써, 타이어의 편마모를 줄이고, 내구성을 향상시킬 수 있는 타이어가 제공된 바 있다. 그러나, 디커플링 그루브를 설치하는 경우 트레드의 숄더부 강성이 저하되며 그루브에 돌물림 현상이 발생하는 등의 결점이 있다. And, in recent years, by applying a decoupling groove pattern to form a narrow circumferential groove on the shoulder portion, a tire that can reduce uneven wear of the tire and improve durability is provided. However, when the decoupling groove is provided, the shoulder part rigidity of the tread is deteriorated, and the groove has a defect such as a bite phenomenon.

그리하여, 숄더부의 러그 내에 원통형 구멍을 파, 발열 성능을 향상시키고 디커플링 그루브가 가지는 효과를 갖는 타이어가 제공된 바 있다. 그러나, 이는 방열 성능이 크게 부족한 결점이 있다.Thus, there has been provided a tire that digs a cylindrical hole in the lug of the shoulder portion, thereby improving heat generation performance and having the effect of the decoupling groove. However, this has the drawback that the heat dissipation performance is largely insufficient.

이에 본 발명은 숄더부의 러그 내에 원통형 구멍을 형성시켜서 되는 타이어에 있어서, 보강벨트 끝단에서 발생되는 열의 방출 성능을 향상시키고 또 트레드와 숄더의 차단량을 확대시켜 디커플링 그루브를 설치한 타이어에 있어서와 같은 편마모 방지 효과 및 내구성 향상 효과를 얻을 수 있는 타이어를 제공하여야 한다는 과제를 해결하고자 한다.Accordingly, the present invention improves the heat dissipation performance generated at the end of the reinforcing belt in a tire in which a cylindrical hole is formed in the lug of the shoulder portion, and expands the blocking amount of the tread and the shoulder to provide a decoupling groove. The problem to be solved is to provide a tire that can provide the effect of preventing wear and tear and improving durability.

위와 같은 과제를 해결하기 위하여 본 발명은 숄더 러그부에 주행 방향으로 기다란 홈을 형성시키되 홈의 간격이 러그와 러그 사이 간격의 40~45%가 되게 간헐적으로 형성시키며, 홈의 양단을 홈의 직경보다 큰 직경을 가지는 구(球) 형태의 공간부로 형성시켜서 된 타이어를 제공한다.In order to solve the above problems, the present invention forms an elongated groove in the shoulder lug portion in the driving direction, but forms intermittently such that the gap between the grooves is 40 to 45% of the gap between the lugs and the lugs, and both ends of the grooves have a diameter of the groove. A tire formed by forming a spherical space portion having a larger diameter is provided.

이와 같이 구성되는 본 발명의 타이어는 원주방향으로 이어지는 디커플링 그루브를 설치한 타이어에서 보는 바와 같은 편마모 방지 역할을 하게 되며 원주방향과 주 강도벨트 방향으로 파여진 기다란 홈에 의해서 주 강도 벨트에서 발생하는 발열 문제를 해결 할 수 있으며, 주행 시 트레드 에지부에서의 움직임을 줄일 수 있고, 그로 인해 사이드월 부의 움직임을 줄이고, 결과적으로 타이어 내구 성능을 향상 시킬 수 있는 효과가 있다.The tire of the present invention configured as described above serves to prevent uneven wear as seen in a tire provided with decoupling grooves extending in the circumferential direction, and heat generated from the main strength belt by elongated grooves cut in the circumferential direction and the main strength belt direction. The problem can be solved, and the movement at the tread edge can be reduced while driving, thereby reducing the movement of the sidewall, and consequently improving the tire durability.

본 발명은, 종래의 타이어에 있어서보다 더욱 향상된 발열 성능을 발휘한다. 즉, 종래의 타이어에 있어서는, 숄더부의 러그에 형성시킨 구멍이 좁아 이를 통한 공기의 출입이 부자연스러웠으나, 본 발명은 원통형 홈의 양단을 홈의 직경보다 큰 직경을 가지는 구(球) 형태의 공간부로 형성시켜서 타이어가 주행시 접지면에 닿을 시, 펌프 역할을 하게 되어 자연스레 공기의 흡입과 배출이 활발하게 된다. 그리고, 원통 내부 벽면을 톱니 모양의 요철부로 형성시키면 방열 표면적이 증가하여 방열 성능을 더욱 향상시킬 수 있다. The present invention exhibits an improved heat generation performance than that of a conventional tire. That is, in the conventional tire, the hole formed in the lug of the shoulder was narrow, and the inflow and outflow of the air was unnatural, but in the present invention, both ends of the cylindrical groove have a sphere-shaped space having a diameter larger than the diameter of the groove. When the tire is formed to be negative, when the tire touches the ground surface during driving, it acts as a pump, thereby naturally inhaling and discharging air. In addition, when the cylindrical inner wall surface is formed with a sawtooth-shaped uneven portion, the heat dissipation surface area is increased to further improve heat dissipation performance.

표면에 그루브(3)가 형성된 트레드(1)와 사이드월(2) 및 비드부로 구성되고, 트레드(1)에 4매의 벨트가 설치되며, 숄더(11)에 러그(4)가 형성되고, 러그(4)에 트레드의 벨트 중 제3벨트 방향으로 홈(6)이 형성되는 중하중 차량용 타이어에 있어서, 본 발명은, 러그(4)에 형성되는 홈(6)이 주행 방향으로 기다랗고, 홈(6)과 이에 이웃하는 다른 홈(6)의 간격이 러그(4)와 이와 이웃하는 다른 러그(4) 사이 간격의 40~45%가 되게 홈(6)들을 간헐적으로 형성시키며, 홈(6)의 양단을 홈(6)의 직경보다 큰 직경을 가지는 구(球) 형태의 공간부(61)로 형성시켜서 된 타이어를 제공한다. It consists of a tread 1, a sidewall 2 and a bead portion having grooves 3 formed on the surface, four belts are provided on the tread 1, and a lug 4 is formed on the shoulder 11, In the heavy-duty vehicle tire in which the groove 6 is formed in the lug 4 in the direction of the third belt of the belt of the tread, in the present invention, the groove 6 formed in the lug 4 is elongated in the running direction, The grooves 6 are formed intermittently such that the distance between the grooves 6 and the other grooves 6 adjacent thereto is 40 to 45% of the distance between the lugs 4 and the other lugs 4 adjacent thereto. Both ends of 6) are provided with a spherical space portion 61 having a diameter larger than the diameter of the groove 6 to provide a tire.

홈(6)의 직경(D1)은 러그(4) 길이(L1)의 25~35%로 형성시키는 것이 바람직하며,홈(6)의 양단 공간부(61)의 직경은 홈(6)의 직경의 120~140%가 되게 형성시키는 것이 바람직하다.The diameter D1 of the groove 6 is preferably formed to be 25 to 35% of the length L1 of the lug 4, and the diameter of the space 61 at both ends of the groove 6 is the diameter of the groove 6. It is preferable to form 120-140% of the.

홈(6)의 내벽에는 톱니 모양의 요철부를 형성시킴으로서 방열 표면적을 확장시키는 것이 바람직하다.It is preferable to expand the heat dissipation surface area by forming a serrated uneven portion on the inner wall of the groove 6.

도1은 본 발명에 있어서, 트레드 숄더부를 사이드월측에서 본 일부 발췌도1 is a partial excerpt view of the tread shoulder portion from the sidewall in the present invention

도2는 도1에 있어서의 가-가 선 단면 일부 발췌 단면도FIG. 2 is a partial cross-sectional view of a temporary line cross section in FIG. 1. FIG.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

1. 트레드1. Tread

11. 숄더  11.shoulder

2. 사이드월2. Sidewall

3. 그루브3. Groove

4. 러그4. Rug

5. 제3벨트5. Third belt

6. 홈6. Home

61. 공간부 61. Space Department

Claims (4)

표면에 그루브(3)가 형성된 트레드(1)와 사이드월(2) 및 비드부로 구성되고, 트레드(1)에 4매의 벨트가 설치되며, 숄더(11)에 러그(4)가 형성되고, 러그(4)에 트레드의 벨트 중 제3벨트 방향으로 홈(6)이 형성되는 중하중 차량용 타이어에 있어서, 러그(4)에 형성되는 홈(6)이 주행 방향으로 기다랗고, 홈(6)과 이에 이웃하는 다른 홈(6)의 간격이 러그(4)와 이와 이웃하는 다른 러그(4) 사이 간격의 40~45%가 되게 홈(6)들을 간헐적으로 형성시키며, 홈(6)의 양단을 홈(6)의 직경보다 큰 직경을 가지는 구(球) 형태의 공간부(61)로 형성시켜서 된 것을 특징으로 하는 중하중 차량용 타이어.It consists of a tread 1, a sidewall 2 and a bead portion having grooves 3 formed on the surface, four belts are provided on the tread 1, and a lug 4 is formed on the shoulder 11, In the heavy-duty vehicle tire in which the groove 6 is formed in the lug 4 in the direction of the third belt of the tread belt, the groove 6 formed in the lug 4 is elongated in the running direction, and the groove 6 is formed. The grooves 6 are formed intermittently such that the distance between the other grooves 6 and the neighboring grooves is 40 to 45% of the distance between the lugs 4 and the other lugs 4 adjacent thereto. A heavy-duty vehicle tire, characterized in that it is formed by a spherical space portion (61) having a diameter larger than the diameter of the groove (6). 제1항에 있어서, 홈(6)의 직경(D1)은 러그(4) 길이(L1)의 25~35%인 것을 특징으로 하는 중하중 차량용 타이어.The heavy duty vehicle tire according to claim 1, wherein the diameter (D1) of the groove (6) is 25 to 35% of the length (L1) of the lug (4). 제2항에 있어서, 홈(6)의 양단 공간부(61)의 직경은 홈(6)의 직경의 120~140%가 되게 형성된 것을 특징으로 하는 중하중 차량용 타이어.3. The heavy-duty vehicle tire according to claim 2, wherein the diameter of the space portion (61) at both ends of the groove (6) is formed to be 120 to 140% of the diameter of the groove (6). 제1항 내지 제3항 중 어느 하나의 항에 있어서, 홈(6)은 내면이 요철부로 형성된 것을 특징으로 하는 중하중 차량용 타이어.The heavy-duty vehicle tire according to any one of claims 1 to 3, wherein the groove (6) has an inner surface formed with an uneven portion.
KR1020070120225A 2007-11-23 2007-11-23 Heavy duty vehicle tire KR100902022B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020070120225A KR100902022B1 (en) 2007-11-23 2007-11-23 Heavy duty vehicle tire
CN2008101770889A CN101439648B (en) 2007-11-23 2008-11-21 Truck tire

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Publication number Priority date Publication date Assignee Title
KR101411089B1 (en) 2012-12-12 2014-06-27 한국타이어 주식회사 Heavy Duty Tire Having a Radiating Rib at the Side Portion of The Tread
KR20230013457A (en) * 2021-07-19 2023-01-26 금호타이어 주식회사 Heavy Duty Pneumatic tire with Reinforced Decoupling Groove

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BR112015014851A2 (en) * 2012-12-20 2017-07-11 Bridgestone Americas Tire Operations Llc tire heat exchange features
JP6812291B2 (en) * 2017-03-30 2021-01-13 株式会社ブリヂストン tire

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JPH0692110A (en) * 1992-09-10 1994-04-05 Yokohama Rubber Co Ltd:The Pneumatic radial tire for heavy load
JP2000103206A (en) 1998-09-29 2000-04-11 Bridgestone Corp Pneumatic tire
JP2004017846A (en) 2002-06-18 2004-01-22 Toyo Tire & Rubber Co Ltd Pneumatic tire
KR20060053730A (en) * 2004-11-17 2006-05-22 한국타이어 주식회사 Pneumatic tire for heavy vehicle

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JP2004098953A (en) * 2002-09-12 2004-04-02 Bridgestone Corp Pneumatic tire for recapping, recapping method, and recapped tire
KR20070010560A (en) * 2005-07-19 2007-01-24 한국타이어 주식회사 Pneumatic tire for heavy vehicle

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JPH0692110A (en) * 1992-09-10 1994-04-05 Yokohama Rubber Co Ltd:The Pneumatic radial tire for heavy load
JP2000103206A (en) 1998-09-29 2000-04-11 Bridgestone Corp Pneumatic tire
JP2004017846A (en) 2002-06-18 2004-01-22 Toyo Tire & Rubber Co Ltd Pneumatic tire
KR20060053730A (en) * 2004-11-17 2006-05-22 한국타이어 주식회사 Pneumatic tire for heavy vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101411089B1 (en) 2012-12-12 2014-06-27 한국타이어 주식회사 Heavy Duty Tire Having a Radiating Rib at the Side Portion of The Tread
KR20230013457A (en) * 2021-07-19 2023-01-26 금호타이어 주식회사 Heavy Duty Pneumatic tire with Reinforced Decoupling Groove
KR102576910B1 (en) 2021-07-19 2023-09-12 금호타이어 주식회사 Heavy Duty Pneumatic tire with Reinforced Decoupling Groove

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