KR20020049485A - Pneumatic tire for heavy load - Google Patents

Pneumatic tire for heavy load Download PDF

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Publication number
KR20020049485A
KR20020049485A KR1020000078664A KR20000078664A KR20020049485A KR 20020049485 A KR20020049485 A KR 20020049485A KR 1020000078664 A KR1020000078664 A KR 1020000078664A KR 20000078664 A KR20000078664 A KR 20000078664A KR 20020049485 A KR20020049485 A KR 20020049485A
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KR
South Korea
Prior art keywords
ribs
groove
tread
rib
pneumatic tire
Prior art date
Application number
KR1020000078664A
Other languages
Korean (ko)
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KR100462201B1 (en
Inventor
박승종
Original Assignee
조충환
한국타이어 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 조충환, 한국타이어 주식회사 filed Critical 조충환
Priority to KR10-2000-0078664A priority Critical patent/KR100462201B1/en
Publication of KR20020049485A publication Critical patent/KR20020049485A/en
Application granted granted Critical
Publication of KR100462201B1 publication Critical patent/KR100462201B1/en

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Classifications

    • 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
    • B60C11/04—Tread patterns in which the raised area of the pattern consists only of continuous circumferential ribs, e.g. zig-zag
    • 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
    • B60C2011/0337—Tread patterns characterised by particular design features of the pattern
    • B60C2011/0386—Continuous ribs

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

Abstract

PURPOSE: A pneumatic tire for a heavy vehicle is provided to restrict wear, and to prevent the end of a rib from being damaged by forming recesses circumferentially near the side of the rib. CONSTITUTION: A pneumatic tire of a heavy vehicle is composed of an inner liner, a carcass, a belt and a tread part(1). Plural ribs(21,22) are formed in the tread part, and a groove(3) is formed between ribs. Plural recesses(4) are arranged at regular intervals circumferentially around ribs. Ribs are faced to each other in both sides of the groove near a shoulder part. The length of the recess is formed circumferentially to be within the range of 5-20 mm, and the width of the recess is formed to be 2-5 mm. The depth of the recess is formed to be within the range of 50-100 % of the entire thickness of the tread part. The distance between the recesses and the edges of ribs is formed to be 3-15 mm. Stiffness in the ends of ribs is reduced with forming recesses in ribs, and wear of ribs is prevented with distributing pressure of tread.

Description

중차량용 공기입 타이어 {Pneumatic tire for heavy load}Pneumatic tire for heavy load

본 발명은, 중하중 차량용 공기입 타이어에 관한 것으로, 특히 전륜용으로 사용되는 리브형 타이어에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to pneumatic tires for heavy load vehicles, and more particularly to ribbed tires used for front wheels.

트럭이나 버스 등과 같은 중하중 차량의 타이어는 전륜용으로는 직진 주행 성능과 조향성이 우수한 리브(Rib)형의 타이어를 사용하며, 후륜으로는 견인력이 우수한 블록형의 타이어를 사용하는 것이 보통이다. 본 발명은 이와 같이 중하중 차량의 전륜용으로 사용되는 리브형의 타이어에 관한 것이다.Heavy-duty vehicle tires such as trucks and buses use rib-type tires having excellent driving performance and steering characteristics for the front wheels, and block-type tires having excellent traction force are generally used for the rear wheels. The present invention thus relates to a rib-type tire used for the front wheel of a heavy load vehicle.

리브형의 타이어에 있어서는, 숄더부에 인접한 그루브에 맞닿아 있는 리브는 타이어가 종하중을 받으며 회전을 할 때 상하 진동에 따라 불균일한 접지 압력을 받게 된다. 그렇기 때문에 이 부분에서는 리브(Rib)의 중심부와 접지 압력에서 차이가 나게 됨에 따라 리브의 가장자리를 따라서 원주 방향으로 흡사 계단과 같은 단차 마모(Rail wear)가 발생할 가능성이 많다. 종래에는 이러한 현상을 방지하기 위하여 첨부된 도면 도 1 에 도시되는 바와 같이, 숄더부에 인접한 그루브(3)에 맞닿아 있는 양쪽 리브(21)(22)의 가장자리 부분에 래디알 방향으로 다수의 사이프(Sipe)(5)를 형성시켜 왔다. 그러나 노면이 험한 도로를 주행하는 일이 많은 중차량의 경우, 이러한 사이프(5)는 리브(21)(22)의 측면에 손상이 발생하는 일을 가중시키는 원인이 되어 왔다.In the rib-type tire, the rib which is in contact with the groove adjacent to the shoulder part is subjected to uneven ground pressure due to vertical vibration when the tire is rotated under the longitudinal load. As a result, the difference between the center of the rib and the ground pressure is likely to cause a rail wear like a step in the circumferential direction along the edge of the rib. Conventionally, in order to prevent this phenomenon, as shown in FIG. 1 of the accompanying drawings, a plurality of sipes in the radial direction at the edges of both ribs 21 and 22 abutting the grooves 3 adjacent to the shoulder portion. (Sipe) 5 has been formed. However, in the case of a heavy vehicle that often runs on a rough road, such a sipe 5 has been a cause for causing damage to the side surfaces of the ribs 21 and 22.

이에 본 발명은 리브의 측면에 설치하는 사이프에 갈음하여 리브의 측면 가까이에 원주방향으로 홈을 형성시킴으로서, 종래의 타이어에서의 사이프가 가지는 단차 마모 방지 기능을 가지게 함과 동시에 리브 단부의 손상이 방지되게 할 수 있는 타이어를 제공하게 하였는 바, 이와 같은 본 발명을 첨부된 도면에 의하여 설명하면 다음과 같다.Accordingly, the present invention forms a groove in the circumferential direction near the side of the rib by replacing the sipe installed on the side of the rib, thereby providing a step wear prevention function of the sipe in a conventional tire and at the same time preventing damage to the rib end. The present invention will be described with reference to the accompanying drawings.

도 1 은 종래에 있어서의 타이어를 발췌 도시한 사시도1 is a perspective view showing an excerpt of a conventional tire

도 2 는 본 발명의 일 실시예인 타이어의 요부를 절취한 사시도Figure 2 is a perspective view of the main portion of the tire cut out according to an embodiment of the present invention

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

1............트레드1 ............ Tread

21, 22.......리브21, 22 ....... Rib

3............그루브3 ............ groove

4............홈4 ............ Home

인너라이너와 카카스, 벨트 및 트레드(1)로 구성되고, 트레드(1)에 수개의 리브(21, 22)가 형성되며 리브(21) 사이에 그루브(3)가 형성된 중하중 차량용 리브형 타이어에 있어서, 본 발명은 숄더부에 인접한 그루브(3)의 양측에 맞닿아 있는 리브(21, 22)의 가장 자리에 원주 방향으로 다수의 홈(4)을 등간격으로 설치하는 것을 특징으로 한다.Rib-type tire for a heavy-duty vehicle, which is composed of an inner liner, a carcass, a belt, and a tread 1, and several ribs 21 and 22 are formed in the tread 1, and a groove 3 is formed between the ribs 21. In the present invention, the plurality of grooves 4 are provided at equal intervals in the circumferential direction at the edges of the ribs 21 and 22 abutting on both sides of the grooves 3 adjacent to the shoulder portion.

이 홈(4)은 원주 방향으로 5∼20mm의 길이를 가지며 폭은 2∼5mm 이고 그 깊이는 트레드(1) 전체두께의 50 ∼100% 인 것이 바람직하다. 그리고 이러한 홈(4)은 리브(21, 22)의 가장자리로부터 3∼15mm 의 거리에 위치하는 것이 바람직하다.The groove 4 preferably has a length of 5 to 20 mm in the circumferential direction, a width of 2 to 5 mm, and a depth of 50 to 100% of the total thickness of the tread 1. The groove 4 is preferably located at a distance of 3 to 15 mm from the edges of the ribs 21 and 22.

이와 같이 구성된 본 발명은, 리브(21, 22)에 형성시킨 원주방향의 홈(4)이 리브(21, 22) 끝 부분에서의 강성을 감소시키게 되어 접지압을 분산시키어 리브에 단차 마모가 발생하지 아니하게 되는 효과 있으면서도, 홈(4)이 외방으로 개방되지 아니하여 홈(4)으로 인한 리브(21, 22) 끝 부분에서의 손상 염려가 적게 되는 효과가 있다.According to the present invention configured as described above, the circumferential grooves 4 formed in the ribs 21 and 22 reduce the stiffness at the ends of the ribs 21 and 22 so as to disperse the ground pressure so that stepped wear does not occur on the ribs. In addition, the groove 4 is not opened outward, and there is an effect of reducing the risk of damage at the ends of the ribs 21 and 22 due to the groove 4.

Claims (2)

인너라이너와 카카스, 벨트 및 트레드(1)로 구성되고, 트레드(1)에 수개의 리브(21, 22)가 형성되며 리브(21) 사이에 그루브(3)가 형성된 중하중 차량용 리브형 타이어에 있어서, 숄더부에 인접한 그루브(3)의 양측에 맞닿아 있는 리브(21, 22)의 가장 자리에 원주 방향으로 다수의 홈(4)을 등간격으로 설치하여서 된 것을 특징으로 하는 중하중 차량용 공기입 타이어.Rib-type tire for a heavy-duty vehicle, which is composed of an inner liner, a carcass, a belt, and a tread 1, and several ribs 21 and 22 are formed in the tread 1, and a groove 3 is formed between the ribs 21. A heavy load vehicle, characterized in that a plurality of grooves (4) are provided at equal intervals in the circumferential direction at the edges of the ribs (21, 22) abutting on both sides of the groove (3) adjacent to the shoulder portion. Pneumatic tires. 제1항에 있어서, 홈(4)은, 원주 방향으로 5∼20mm의 길이를 가지며 ,폭이 2∼5mm 이고, 깊이가 트레드(1) 전체두께의 50 ∼100% 이고, 리브(21, 22)의 가장자리로부터 3∼15mm 의 거리에 위치하는 것임을 특징으로 하는 중하중 차량용 공기입 타이어.The groove 4 has a length of 5 to 20 mm in the circumferential direction, a width of 2 to 5 mm, a depth of 50 to 100% of the total thickness of the tread 1, and ribs 21 and 22. A pneumatic tire for a heavy-duty vehicle, characterized in that it is located at a distance of 3 to 15 mm from the edge.
KR10-2000-0078664A 2000-12-19 2000-12-19 Pneumatic tire for heavy load KR100462201B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR10-2000-0078664A KR100462201B1 (en) 2000-12-19 2000-12-19 Pneumatic tire for heavy load

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR10-2000-0078664A KR100462201B1 (en) 2000-12-19 2000-12-19 Pneumatic tire for heavy load

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KR20020049485A true KR20020049485A (en) 2002-06-26
KR100462201B1 KR100462201B1 (en) 2004-12-16

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8875757B2 (en) * 2006-10-23 2014-11-04 Toyo Tire & Rubber Co., Ltd. Pneumatic tire with tread having long hole shaped depressions
US20170197466A1 (en) * 2014-05-30 2017-07-13 Bridgestone Corporation Passenger-vehicle pneumatic radial tire
KR20190054391A (en) * 2017-11-13 2019-05-22 금호타이어 주식회사 Tire with sipe on the rib

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5522535A (en) * 1978-08-04 1980-02-18 Bridgestone Corp Heavy vehicle pneumatic tire
JPH04218407A (en) * 1990-10-02 1992-08-10 Bridgestone Corp Pneumatic radial tire
JPH04154406A (en) * 1990-10-17 1992-05-27 Bridgestone Corp Pneumatic radial tire
JPH0577613A (en) * 1991-04-24 1993-03-30 Sumitomo Rubber Ind Ltd Pneumatic tire
JPH05294112A (en) * 1992-04-23 1993-11-09 Sumitomo Rubber Ind Ltd Pneumatic tire
JP3204777B2 (en) * 1993-02-18 2001-09-04 オーツタイヤ株式会社 Pneumatic radial tire for heavy loads
JPH0911709A (en) * 1995-06-28 1997-01-14 Yokohama Rubber Co Ltd:The Pneumatic radial tire for heavy load
JPH11321236A (en) * 1998-05-13 1999-11-24 Yokohama Rubber Co Ltd:The Low aspect ratio pneumatic radial tire for small truck

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8875757B2 (en) * 2006-10-23 2014-11-04 Toyo Tire & Rubber Co., Ltd. Pneumatic tire with tread having long hole shaped depressions
US20170197466A1 (en) * 2014-05-30 2017-07-13 Bridgestone Corporation Passenger-vehicle pneumatic radial tire
KR20190054391A (en) * 2017-11-13 2019-05-22 금호타이어 주식회사 Tire with sipe on the rib

Also Published As

Publication number Publication date
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