KR20100031999A - Pneumatic vehicle tire - Google Patents

Pneumatic vehicle tire Download PDF

Info

Publication number
KR20100031999A
KR20100031999A KR1020080090931A KR20080090931A KR20100031999A KR 20100031999 A KR20100031999 A KR 20100031999A KR 1020080090931 A KR1020080090931 A KR 1020080090931A KR 20080090931 A KR20080090931 A KR 20080090931A KR 20100031999 A KR20100031999 A KR 20100031999A
Authority
KR
South Korea
Prior art keywords
curvature
tread
tire
shoulder portion
curvature part
Prior art date
Application number
KR1020080090931A
Other languages
Korean (ko)
Inventor
이원혁
박현철
Original Assignee
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.)
Filing date
Publication date
Application filed by 한국타이어 주식회사 filed Critical 한국타이어 주식회사
Priority to KR1020080090931A priority Critical patent/KR20100031999A/en
Priority to CN2009101506486A priority patent/CN101676132B/en
Publication of KR20100031999A publication Critical patent/KR20100031999A/en

Links

Images

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
    • B60C11/01—Shape of the shoulders between tread and sidewall, e.g. rounded, stepped or cantilevered
    • 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
    • B60C11/0083—Tyre tread bands; Tread patterns; Anti-skid inserts characterised by the curvature of the tyre tread
    • 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
    • B60C11/0332—Tread patterns characterised by special properties of the tread pattern by the footprint-ground contacting area of the tyre tread
    • 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

Landscapes

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

Abstract

PURPOSE: A pneumatic tire for a vehicle is provided to improve durability and prevent a groove from being cracked by minimizing groove momentum of a shoulder part of a tire. CONSTITUTION: A pneumatic tire for a vehicle comprises a tread(1), a sidewall(2), and a bead part. The tread is composed of a first curvature part, a non-curvature part, and a second curvature part. The boundary between the first curvature part and the non-curvature part is positioned at the 40-55% spot of the tread width 1/2.

Description

차량용 공기입 타이어{Pneumatic vehicle tire}Pneumatic vehicle tire

본 발명은 차량용 공기입 타이어에 관한 것으로, 특히 40-50의 매우 낮은 편평도의 타이어에 있어서, 트레드 구조의 개선에 관한 것이다. FIELD OF THE INVENTION The present invention relates to pneumatic tires for vehicles, and more particularly to improvements in tread structure, for tires of very low flatness of 40-50.

40-50의 매우 낮은 편평도를 갖는 트럭/버스용 타이어는 편마모 현상 및 그루브에 크랙이 발생하는 고질적인 문제가 있다.Truck / bus tires having a very low flatness of 40-50 have a chronic problem of uneven wear and cracks in grooves.

이를 해결하기 위하여 트레드부의 곡률을 다단계로 형성시키어 타이어의 접지형상을 균일하는 기술 등이 소개된 바 있다(KR 0633375). 이러한 기술들은 타이어 트레드를 여러 부분으로 구분하고 각 부분마다 다른 곡률을 형성시킴으로써, 타이어 트레드의 접지형상을 균일하게 하여 트레드 각 부분에 가해지는 압력을 균일하게 하는 것에 중점을 두고 있다.To solve this problem, a technique of uniformizing the tire ground shape by forming the curvature of the tread part in multiple stages has been introduced (KR 0633375). These techniques focus on making tire treads uniform by dividing the tire tread into parts and forming different curvatures in each part to make the pressure applied to each part of the tread uniform.

그러나 상와 같은 기술에서도 편마모 및 크랙 현상이 가장 심한 숄더부의 문제에 소홀함이 있었다. 상기 기술에서도 숄더부의 주행시 끝단 운동량은 크게 줄지 않아 숄더부의 편마모 및 크랙현상이 상대적으로 심했던 것이다. However, even in the same technology, there was a neglect in the shoulder part, which suffered the most abrasion and cracks. Even in the above technique, the amount of tip movement during the running of the shoulder portion does not decrease significantly, and the wear and crack phenomenon of the shoulder portion is relatively severe.

즉, 편마모 및 크랙 현상이 가장 심한 숄더부의 주행시 끝단 운동량을 감소시켜 숄더부의 내구성을 향상시키는 기술이 필요한 것이다.That is, a technique for improving the durability of the shoulder portion is required by reducing the amount of tip movement during the running of the shoulder portion with the most wear and crack phenomenon.

이에 본 발명은, 트레드 중심선을 기준으로 제1곡률부, 무곡률부, 제2곡률부로 구성시킴으로써 숄더부의 접지면적을 크게 하여 주행시 끝단 운동량을 최소화 시킴으로써 숄더부의 내구성능을 향상시킨 타이어를 제공하고자 한다.Accordingly, the present invention is to provide a tire that improves the durability of the shoulder portion by minimizing the end momentum during driving by increasing the ground area of the shoulder portion by configuring the first curvature portion, the non-curvature portion, the second curvature portion based on the tread center line .

본 발명은 타이어 주행시 끝단 운동량을 최소화 시킴으로써 그루브의 크랙 및 편마모현상을 해소함으로써 내구성능을 향상시키는 효과가 있는 것이다.The present invention has the effect of improving the durability by minimizing the amount of tip movement when running the tire to eliminate cracks and uneven wear of the groove.

도2에 도시된 FE 시뮬레이션의 실험 결과표에 나타난 바와 같이, 본 발명의 숄더부 접지면적이 종래의 3중의 곡률을 갖는 트레드에 비해 크기 때문에 숄더부(A영역의 그루브 폭편화가 23% 감소하여 끝단 운동량이 최소화되기 때문에 내구성능(ISS 39%향상, SED 12%향상)의 효과가 있는 것이다.As shown in the experimental results table of the FE simulation shown in FIG. 2, the shoulder portion (groove width deviation of the A region is reduced by 23% because the shoulder portion ground area of the present invention is larger than that of the conventional triple curvature tread). Since this is minimized, there is an effect of durability (improved ISS 39%, SED 12%).

본 발명은 트레드(1)와 사이드월(2) 및 비드부(3)로 구성된 것에 있어서, 트 레드(1)가 중심선(CL)을 기준으로 제1곡률부(TR1), 무곡률부(11), 제2곡률부(TR2)로 구성되며, 상기 제1곡률부와 무곡률부가 이루는 경계(가)는 트레드폭1/2의(1/2TW) 40-55% 지점에 위치하며, 무곡률부와 제2곡률부가 이루는 경계(나)는 트레드폭1/2의(1/2TW) 80-90% 지점에 위치하는 것을 특징으로 한다 .According to the present invention, the tread 1, the sidewall 2, and the bead part 3 have a tread 1 having a first curvature part TR1 and an uncurvature part 11 based on the center line CL. ), The second curvature portion TR2, and the boundary between the first curvature portion and the non-curvature portion (a) is located at 40-55% of the tread width (1 / 2TW) and has no curvature. The boundary (b) formed by the second curvature and the second curvature is characterized in that it is located at 80-90% of the tread width 1/2 (TW).

상기와 같은 구성은 곡률을 갖지 않는 무곡률부(11)에 의해 제2곡률부에 해당하는 숄더부(A)의 접지면적을 크게 한다. 접지면적이 커짐에 따라 숄더부(A)의 블록과 그루브들이 주행 중에도 안정적으로 접지하게 되므로 상기 블록과 그루브의 운동량이 최소화 되는 것이다.The above configuration increases the ground area of the shoulder portion A corresponding to the second curvature portion by the non-curvature portion 11 having no curvature. As the ground area increases, the blocks and grooves of the shoulder portion A are stably grounded while driving, thereby minimizing the momentum of the blocks and grooves.

즉, 주행 중 숄더부(A)영역의 그루브 폭편화가 감소하여 끝단 운동량이 최소화되기 때문에 편마모 및 크랙 등의 문제를 예방할 수 있으며, 내구성능의 효과를 기대할 수 있다. That is, since the groove width of the shoulder portion (A) area is reduced while driving, the amount of tip movement is minimized, thereby preventing problems such as uneven wear and cracks, and the effect of durability can be expected.

도 1은 본 발명의 차량용 공기입 타이어의 요부 발췌 단면도.BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a sectional view of an essential part of a pneumatic tire for a vehicle according to the present invention.

도 2는 본 발명의 타이어의 FE 시뮬레이션 실험 결과를 나타낸 결과표.Figure 2 is a result table showing the FE simulation test results of the tire of the present invention.

<도면의 주요 부호에 대한 설명><Description of Major Symbols in Drawing>

1. 트레드1. Tread

11. 무곡률부11. Curvature

2. 사이드월2. Sidewall

3. 비드부3. Bead part

Claims (1)

트레드와 사이드월 및 비드부로 구성된 것에 있어서, 트레드가 중심선(CL)을 기준으로 제1곡률부(TR1), 무곡률부, 제2곡률부(TR2)로 구성되며, 상기 제1곡률부와 무곡률부가 이루는 경계(가)는 트레드폭1/2의(1/2TW) 40-55% 지점에 위치하며, 무곡률부와 제2곡률부가 이루는 경계(나)는 트레드폭1/2의(1/2TW) 80-90% 지점에 위치하는 것을 특징으로 하는 차량용 공기입 타이어.In the tread, the sidewall, and the bead part, the tread includes the first curvature part TR1, the non-curvature part, and the second curvature part TR2 based on the center line CL. The boundary (a) of the curvature is located at 40-55% of the tread width (1 / 2TW), and the boundary (b) between the curvature and the second curvature is (1) of the tread width (1). / 2TW) pneumatic tire for a vehicle, characterized in that it is located at 80-90% point.
KR1020080090931A 2008-09-17 2008-09-17 Pneumatic vehicle tire KR20100031999A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020080090931A KR20100031999A (en) 2008-09-17 2008-09-17 Pneumatic vehicle tire
CN2009101506486A CN101676132B (en) 2008-09-17 2009-06-23 Air tyre for automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080090931A KR20100031999A (en) 2008-09-17 2008-09-17 Pneumatic vehicle tire

Publications (1)

Publication Number Publication Date
KR20100031999A true KR20100031999A (en) 2010-03-25

Family

ID=42028903

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020080090931A KR20100031999A (en) 2008-09-17 2008-09-17 Pneumatic vehicle tire

Country Status (2)

Country Link
KR (1) KR20100031999A (en)
CN (1) CN101676132B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6539189B2 (en) * 2015-11-18 2019-07-03 Ｔｏｙｏ Ｔｉｒｅ株式会社 Pneumatic tire
EP3845396A4 (en) * 2018-09-25 2022-09-07 Sumitomo Rubber Industries, Ltd. Pneumatic tire

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3165651B2 (en) * 1996-02-14 2001-05-14 住友ゴム工業株式会社 Pneumatic radial tire
US20060118220A1 (en) * 2004-12-06 2006-06-08 The Goodyear Tire & Rubber Company Pneumatic tire with elliptical shoulder
KR100721737B1 (en) * 2005-06-28 2007-05-25 한국타이어 주식회사 Profile structure of radial pneumatic tire for passenger car having improved run-flat performance

Also Published As

Publication number Publication date
CN101676132B (en) 2012-04-11
CN101676132A (en) 2010-03-24

Similar Documents

Publication Publication Date Title
EP3103657B1 (en) Pneumatic tire
JP4973020B2 (en) Pneumatic tire
EP2692546A1 (en) Pneumatic tire
WO2013008926A1 (en) Tire
CN105829140A (en) Tread band comprising curved blocks with sipes
JP2010116112A (en) Pneumatic tire
KR20100031999A (en) Pneumatic vehicle tire
WO2013015408A1 (en) Tyre
JP5234269B2 (en) Pneumatic tire
CN108146153A (en) Pneumatic tire
KR100656438B1 (en) Pneumatic tire for vehicle
JP2002211211A (en) Pneumatic radial tire
KR100620501B1 (en) Method of designing tread profile of tire having uniform ground pressure
KR101078356B1 (en) Pneumatic tire
JP5343428B2 (en) Pneumatic tire
JP5893345B2 (en) Pneumatic tire
KR100766530B1 (en) Pneumatic vehicle tire
KR20110015232A (en) Stud type snow tire having saw balde shaped sipe
JP4940710B2 (en) Pneumatic tire
JP2009202706A (en) Pneumatic radial tire
KR100995854B1 (en) Vehicle tire improved rolling resistance
CN102555678B (en) Pneumatic tire
KR100644872B1 (en) Studless Type Heavy duty Pneumatic Radial Tire
KR100573763B1 (en) Pneumatic vehicle tire improved handling
JP6017794B2 (en) Pneumatic tire

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application
J201 Request for trial against refusal decision
J301 Trial decision

Free format text: TRIAL DECISION FOR APPEAL AGAINST DECISION TO DECLINE REFUSAL REQUESTED 20110131

Effective date: 20110624