KR100995854B1 - Vehicle tire improved rolling resistance - Google Patents

Vehicle tire improved rolling resistance Download PDF

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Publication number
KR100995854B1
KR100995854B1 KR1020080117296A KR20080117296A KR100995854B1 KR 100995854 B1 KR100995854 B1 KR 100995854B1 KR 1020080117296 A KR1020080117296 A KR 1020080117296A KR 20080117296 A KR20080117296 A KR 20080117296A KR 100995854 B1 KR100995854 B1 KR 100995854B1
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South Korea
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rolling resistance
grooves
tire
lateral
width
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KR1020080117296A
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Korean (ko)
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KR20100058768A (en
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홍정호
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한국타이어 주식회사
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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
    • 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
    • B60C11/0318—Tread patterns irregular patterns with particular pitch sequence
    • 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
    • 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
    • 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
    • B60C2011/0337—Tread patterns characterised by particular design features of the pattern
    • B60C2011/0339—Grooves
    • B60C2011/0358—Lateral grooves, i.e. having an angle of 45 to 90 degees to the equatorial plane
    • B60C2011/0372—Lateral grooves, i.e. having an angle of 45 to 90 degees to the equatorial plane with particular inclination angles
    • 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
    • B60C2200/04—Tyres specially adapted for particular applications for road vehicles, e.g. passenger cars
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction 

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

Abstract

본 발명은 구름저항을 감소시켜서 된 자동차용 타이어에 관한 것으로, 종래에는 캡트레드를 강도가 낮은 조성물로 형성시킨다던지 타이어의 구조를 개선하여 구름 저항을 감소시키려 하였으나, 캡트레드의 강도를 낮추게 되면 코너링 및 제동 성능이 저하되는 결점이 있으며, 구름 저항의 감소를 위하여 타이어의 구조를 변경하게 되면 타이어의 여타 성능을 해하게 되는 결점이 있다. 이에 본 발명은 트레드의 중앙부와 숄더부사이에 종그루브를 형성시키며 중앙부와 숄더부에 횡그루브를 형성시켜 중앙부와 숄더부를 블록과 그루브로 형성시키되 중앙부의 횡그루브와 횡방향선이 이루는 각도가 숄더부의 횡그루브와 횡방향선이 이루는 각도보다 크게 형성시키고, 숄더부에 형성시키는 블록과 횡그루브는 그 폭이 블록의 폭과 그루브의 폭을 합한 피치의 폭의 8~12%가 되게 하여서 된 타이어를 제공한다.The present invention relates to a tire for an automobile made by reducing rolling resistance. In the related art, the cap tread is formed of a composition having a low strength or the tire structure is improved to reduce rolling resistance, but when the strength of the cap tread is reduced, cornering is performed. And there is a drawback that the braking performance is lowered, there is a drawback that if you change the structure of the tire in order to reduce the rolling resistance damage other performance of the tire. Accordingly, the present invention forms a longitudinal groove between the central portion and the shoulder portion of the tread, and forms a horizontal groove in the central portion and the shoulder portion to form the central portion and the shoulder portion as blocks and grooves, but the angle formed by the horizontal grooves and the lateral line at the center portion is the shoulder portion. Blocks and lateral grooves, which are formed larger than the angle formed by the lateral grooves and the lateral lines, and formed in the shoulder portion, have a width of 8 to 12% of the width of the pitch of the width of the block plus the grooves. to provide.

타이어, 그름 저항, Rolling resistance, 횡그루브의 각도. 피치에 대한 그루브 폭의 비율 Tire, rolling resistance, rolling resistance, lateral groove angle. Ratio of groove width to pitch

Description

구름저항을 감소시킨 자동차용 타이어{Vehicle tire improved rolling resistance}Vehicle tire improved rolling resistance

본 발명은 자동차용 타이어에 관한 것으로, 특히, 구름저항을 감소시켜서 된 자동차용 타이어에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to automobile tires, and more particularly to automobile tires with reduced rolling resistance.

자동차가 주행하게 되면 타이어에는 구름 저항(rolling resistance)이 발생되는 바, 이러한 구름 저항은 자동차의 연비를 감소시키게 된다. 그리하여 고유가시대에 들어서면서 저구름저항(Low Rolling Resistance)성능이 강화된 타이어의 개발 필요성이 높아졌다. 그런데, 종래에는 구름 저항을 감소시키기 위한 노력으로 캡트레드를 강도가 낮은 조성물로 형성시킨다던지 타이어의 구조를 개선하는 등의 시도가 있었을 뿐이었다. 그러나, 구름 저항의 감소를 위하여 캡트레드의 강도를 낮추게 되면 코너링 및 제동 성능이 저하되는 결점이 있으며, 구름 저항의 감소를 위하여 타이어의 구조를 변경하게 되면 타이어의 여타 성능을 해하게 되는 결점이 있다.When the vehicle is driven, rolling resistance is generated on the tire, which reduces the fuel economy of the vehicle. As a result of the high oil price era, the necessity of developing tires with enhanced low rolling resistance performance has increased. However, in the past, attempts to reduce the rolling resistance have only been made, such as forming the cap tread with a low strength composition or improving the structure of the tire. However, if the strength of the cap tread is decreased to reduce rolling resistance, cornering and braking performance is deteriorated, and if the tire structure is changed to reduce rolling resistance, other performance of the tire is deteriorated. .

이에 본 발명은 종그루브에 의해 분할되는 중앙 리브와 숄더 리브에 각각 횡그루브를 형성시켜 중앙 리브와 숄더 리브를 블록과 그루브로 분할 형성시켜서 된 타이어에 있어서 만은 캡트레드의 강도를 약화시킨다던지 구조를 변화시키지 아니하고서도 구름 저항을 감소시켜서 되는 타이어를 제공고자 한다.Accordingly, the present invention forms a horizontal groove in the center rib and the shoulder rib divided by the longitudinal groove, respectively, so that the central rib and the shoulder rib are formed by dividing the center rib and the shoulder rib into blocks and grooves, thereby reducing the strength of the cap tread. We want to provide a tire that reduces rolling resistance without changing.

위와 같은 과제를 해결하기 위하여, 본 발명은 종그루브에 의해 분할되는 중앙 리브와 숄더 리브에 각각 횡그루브를 형성시켜 중앙 리브와 숄더 리브 블록과 그루브로 분할 형성시켜서 된 것에 있어서, 중앙 리브의 횡그루브와 횡방향선이 이루는 각도가 숄더 리브의 횡그루브와 횡방향선이 이루는 각도보다 크게 형성시키고, 중앙 리브에 형성시키는 하나씩의 블록과 횡그루브를 단위로 하는 피치의 수가 숄더 리브에 형성시키는 피치의 수보다 많게 형성시키며, 또한, 숄더 리브에 형성시키는 횡그루브는 그 폭이 블록의 폭과 그루브의 폭을 합한 피치의 폭의 8~12%가 되게 하여서 된 타이어를 제공한다.In order to solve the above problems, the present invention is to form a horizontal groove in each of the center rib and the shoulder rib divided by the longitudinal groove, divided into a central rib, the shoulder rib block and the groove, the horizontal groove of the central rib And the angle formed by the lateral line is larger than the angle formed by the lateral groove and the lateral line of the shoulder rib, and the number of pitches in units of the horizontal rib and one block formed on the center rib is formed on the shoulder rib. Forming more than the number, and the horizontal grooves formed on the shoulder ribs provide a tire in which the width thereof is 8 to 12% of the width of the pitch of the sum of the widths of the blocks and the widths of the grooves.

위와 같이 구성된 본 발명의 타이어는 캡트레드의 강도를 약화시킨다던지 구조를 변화시키지 아니하고서도 구름 저항을 감소시켜서 되는 타이어를 제공하게 되는 효과가 있다.The tire of the present invention configured as described above has the effect of providing a tire by reducing the rolling resistance without reducing the strength of the cap tread or changing the structure.

트레드와 트레드 양측의 사이드월과 각 사이드월 단부의 비드부로 구성되고, 트레드에 종그루브(1)에 의해 분할되는 중앙 리브(2)와 숄더 리브(3)가 설치되고, 중앙 리브(2)와 숄더 리브(3)에 각각 횡그루브(4, 41)와 횡그루브(4, 41)에 의해 분할되는 블록(5, 51)을 형성시켜서 된 것에 있어서, 본 발명은, 중앙 리브(2)의 횡그루브(4)와 횡방향선(L)이 이루는 각도(A)가 숄더 리브(3)의 횡그루브(41)와 횡방향선(L)이 이루는 각도(B)보다 크게 형성시키고, 중앙 리브(2)에 형성시키는 하나씩의 횡그루브(4)와 블록(5)을 단위로 하는 피치의 수가 숄더 리브(3)에 형성시키는 횡그루브(41)와 블록(51)을 단위로 하는 피치 수보다 많게 형성시키며, 또한, 본 발명은 이에서 나아가, 숄더 리브(3)에 형성시키는 횡그루브(41)의 폭은 블록(51)의 폭과 횡그루브(41)의 폭을 합한 피치의 폭의 8~12%가 되게 하여서 된 타이어를 제공한다.The tread and the sidewalls on both sides of the tread and the bead portions at the end of each sidewall, and the center ribs 2 and the shoulder ribs 3 divided by the longitudinal grooves 1 are provided on the treads, and the center ribs 2 and In forming the shoulder ribs 3 and the blocks 5 and 51 which are divided by the horizontal grooves 4 and 41 and the horizontal grooves 4 and 41, respectively, the present invention is transverse to the center rib 2 The angle A formed by the groove 4 and the lateral line L is formed to be larger than the angle B formed by the lateral groove 41 and the lateral line L of the shoulder rib 3, and the center rib ( 2) the number of pitches in units of the horizontal grooves 4 and blocks 5 formed in the shoulder ribs 3 is greater than the number of pitches in the units of the horizontal grooves 41 and blocks 51 formed in the shoulder ribs 3; In addition, the present invention further extends the width of the horizontal grooves 41 formed on the shoulder ribs 3 to the width of the pitch of the width of the block 51 and the width of the horizontal grooves 41. It provides a tire hayeoseo be 8 to 12%.

즉, 상기와 같은 구성으로 센터부와 숄더부의 피치 갯수와 그루브의 각을 상이하게 설정하면서 LRR(Low Rolling Resistance)성능을 극대화하면서 제동 및 코너링성능을 유지할 수 있게 되는 것이다.That is, with the above configuration, the braking and cornering performance can be maintained while maximizing the LRR (Low Rolling Resistance) performance while setting the pitch numbers and the groove angles differently from the center portion and the shoulder portion.

도1은 본 발명의 일 실시예의 요부 발췌 평면도   1 is a plan view of main parts excerpt of one embodiment of the present invention

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

1. 종그루브Bell Groove

2. 중앙 리브2. center rib

3. 숄더 리브3. Shoulder Rib

4. 41. 횡그루브4. 41.Horizontal groove

5, 51. 블록5, 51.Block

Claims (2)

트레드와 트레드 양측의 사이드월과 각 사이드월 단부의 비드부로 구성되고, 트레드에 종그루브(1)에 의해 분할되는 중앙 리브(2)와 숄더 리브(3)가 설치되고, 중앙 리브(2)와 숄더 리브(3)에 각각 횡그루브(4, 41)와 횡그루브(4, 41)에 의해 분할되는 블록(5, 51)을 형성시켜서 된 것에 있어서, 중앙 리브(2)의 횡그루브(4)와 횡방향선(L)이 이루는 각도(A)가 숄더 리브(3)의 횡그루브(41)와 횡방향선(L)이 이루는 각도보다 크게 형성시키고, 중앙 리브(2)에 형성시키는 하나씩의 횡그루브(4)와 블록(5)를 단위로 하는 피치의 수가 숄더 리브(3)에 형성시키는 횡그루브(41)와 블록(51)을 단위로 하는 피치 수보다 많게 형성된 것을 특징으로 하는 구름저항을 감소시킨 자동차용 타이어.The tread and the sidewalls on both sides of the tread and the bead portions at the end of each sidewall, and the center ribs 2 and the shoulder ribs 3 divided by the longitudinal grooves 1 are provided on the treads, and the center ribs 2 and The horizontal grooves 4 of the center ribs 2 are formed by forming the blocks 5 and 51 divided by the horizontal grooves 4 and 41 and the horizontal grooves 4 and 41 in the shoulder ribs 3, respectively. And the angle (A) formed by the lateral line (L) is larger than the angle formed by the lateral groove (41) and the lateral line (L) of the shoulder rib (3) and formed on the central rib (2) Rolling resistance characterized in that the number of pitches in the horizontal grooves 4 and the block 5 is formed more than the number of pitches in the horizontal grooves 41 and the block 51 formed in the shoulder ribs 3. Reduced car tires. 제1항에 있어서, 숄더 리브(3)에 형성시키는 횡그루브(41)의 폭은 블록(51)의 폭과 횡그루브(41)의 폭을 합한 피치의 폭의 8~12%가 되게 하여서 된 것을 특징으로 하는 구름저항을 감소시킨 자동차용 타이어.The width of the lateral grooves 41 formed on the shoulder ribs 3 is 8 to 12% of the width of the pitch of the sum of the widths of the blocks 51 and the widths of the lateral grooves 41. An automobile tire having reduced rolling resistance, characterized in that.
KR1020080117296A 2008-11-25 2008-11-25 Vehicle tire improved rolling resistance KR100995854B1 (en)

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KR100995854B1 true KR100995854B1 (en) 2010-11-22

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100573762B1 (en) 2004-06-23 2006-04-25 한국타이어 주식회사 Pneumatic tire having improved noise
KR100838443B1 (en) 2007-06-27 2008-06-16 금호타이어 주식회사 Heavy duty pneumatic radial tire

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100573762B1 (en) 2004-06-23 2006-04-25 한국타이어 주식회사 Pneumatic tire having improved noise
KR100838443B1 (en) 2007-06-27 2008-06-16 금호타이어 주식회사 Heavy duty pneumatic radial tire

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