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KR100766529B1 - Pneumatic vehicle tire - Google Patents

Pneumatic vehicle tire Download PDF

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Publication number
KR100766529B1
KR100766529B1 KR1020060084742A KR20060084742A KR100766529B1 KR 100766529 B1 KR100766529 B1 KR 100766529B1 KR 1020060084742 A KR1020060084742 A KR 1020060084742A KR 20060084742 A KR20060084742 A KR 20060084742A KR 100766529 B1 KR100766529 B1 KR 100766529B1
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KR
South Korea
Prior art keywords
tire
layer
belt
vehicle
belt layer
Prior art date
Application number
KR1020060084742A
Other languages
Korean (ko)
Inventor
강명환
Original Assignee
한국타이어 주식회사
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Priority to KR1020060084742A priority Critical patent/KR100766529B1/en
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Publication of KR100766529B1 publication Critical patent/KR100766529B1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/1835Rubber strips or cushions at the belt edges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/0007Reinforcements made of metallic elements, e.g. cords, yarns, filaments or fibres made from metal
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/0028Reinforcements comprising mineral fibres, e.g. glass or carbon fibres
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44Yarns or threads characterised by the purpose for which they are designed
    • D02G3/48Tyre cords
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/1835Rubber strips or cushions at the belt edges
    • B60C2009/1842Width or thickness of the strips or cushions

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

Abstract

A pneumatic tire for a vehicle is provided to install a reinforcing layer below a belt layer and continuously dispose chords on a circumferential side of the tire in a traverse direction, thereby increasing the cornering force as well as the handling capacity of the vehicle when the vehicle is cornering. A pneumatic tire for a vehicle comprises a tread(1), a sidewall(2), and a bead part(3). A belt layer(4) is installed inside the tread, and a reinforcing layer(5) is formed on an underside of the belt layer. Chords of the reinforcing layer face the traverse direction of the tire, and the chords are continuously disposed on a circumferential side of the tire. The chords of the reinforcing plate have 40 to 120 mm shorter width than the traverse breadth of the belt layer.

Description

차량용 공기입 타이어 {Pneumatic vehicle tire}Pneumatic vehicle tire

도 1 은 본 발명의 차량용 타이어의 요부의 단면도.1 is a sectional view of a main portion of a vehicle tire of the present invention.

도 2 는 본 발명의 차량용 타이어의 요부의 단계별 평면도.2 is a step-by-step plan view of the main parts of the vehicle tire of the present invention.

도 3 은 선회시의 코너링포스(cornering force)와 슬립앵글(slip angle)에 대한 본 발명의 타이어와 종래의 타이어의 성능을 비교 실험한 결과의 그래프.Figure 3 is a graph of the results of comparing the performance of the tire of the present invention and the conventional tire for the cornering force (cornering force) and the slip angle (slip angle) at the time of turning.

도 4 는 롤링리지스턴스(rolling resistance)를 비교실험한 결과의 표.Figure 4 is a table of the results of a comparative experiment of rolling resistance (rolling resistance).

도 5 는 롤링리지스턴스(rolling resistance)를 비교실험한 결과의 그래프.5 is a graph of the results of a comparative experiment of rolling resistance.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

1. 트레드1. Tread

2. 사이드월2. Sidewall

3. 비드부3. Bead part

4. 벨트층4. Belt layer

5. 보강층5. Reinforcement layer

50. 코드50. Code

본 발명은 차량용 공기입 타이어에 관한 것으로, 더욱 상세하게는 카카스와 벨트층의 사이에 설치되는 보강층의 구조를 추가하여 연비 성능 향상, 선회시의 코너링포스(Cornering Force)를 높여 핸들링 성능 향상시키고, 타이어 트레드 내마모 성능을 높일 수 있게 한 차량용 공기입 타이어에 관한 것이다.The present invention relates to a pneumatic tire for a vehicle, and more particularly, by adding a structure of a reinforcement layer installed between the carcass and the belt layer to improve fuel efficiency, increase cornering force during turning, and improve handling performance. The present invention relates to a pneumatic tire for a vehicle that enables to increase tire tread wear resistance.

일반적으로 주행중인 타이어는 차량과 노면으로부터 전달되는 수직방향과 횡방향의 하중에 따른 변형을 지속적으로 수용하게 된다. 이때 타이어에 가해지는 하중은 1차적으로 사이드월부의 변형을 유발시키며, 카카스를 통한 하중 전달을 통하여 노면에 직접적으로 접촉하는 타이어 트레드부의 반복변형을 2차적으로 유발시키게 된다.In general, the tires on the road continue to accommodate the deformation caused by the vertical and transverse loads transmitted from the vehicle and the road surface. At this time, the load applied to the tire primarily causes deformation of the sidewall portion, and secondaryly causes repeated deformation of the tire tread portion directly contacting the road surface through the load transfer through the carcass.

특히, 주행 조건에서의 하중에 의한 변형은 속도 및 진행방향 변화에 의해 트레드부에 집중되며, 이와 같은 변형은 트레드부의 벨트 및 패턴의 횡방향 운동을 야기시켜 트레드부와 밀접한 관련이 있는 마모성능, 연비성능 및 핸들링 성능의 저하가 발생하고, 이는 주로 대부분이 이러한 벨트의 반복변형 결과로 나타나게 된다.In particular, the deformation caused by the load under the driving conditions is concentrated on the tread part by the change of the speed and the direction of travel. Such deformation causes the lateral movement of the belt and the pattern of the tread part, and the wear performance closely related to the tread part, Deterioration of fuel efficiency and handling performance occurs, which is mostly caused by the repeated deformation of these belts.

주행 벨트의 변형은 1차로 센타부를 중심으로 작용되는 상하 운동의 형태로 나타나며, 벨트층의 서로 반대 방향으로 정렬되어 연결된 2개층의 스틸코드로 구성되어 있으므로 앞의 상하변형은 각층의 원주방향 및 횡방향의 복합적인 상대 운동 에 의한 변형이 추가되어 나타난다.The deformation of the running belt is shown in the form of vertical motion acting mainly on the center part. Since the belt is composed of two layers of steel cords connected and aligned in opposite directions of the belt layer, the front upper and lower deformations are circumferential and horizontal in each layer. Deformation due to multiple relative movements of direction is added.

또한 벨트층의 에지부는 원심력으로 인해 타이어 래디알(radial) 방향의 외측으로 성장되는 복합적인 변형 특성을 나타낸다.In addition, the edge portion of the belt layer exhibits a complex deformation characteristic that grows outward in the tire radial direction due to the centrifugal force.

이러한 벨트변형에 의한 사고 방지를 위하여 종래에 있어서는 벨트부의 상층에 섬유 또는 합성사의 코드를 가지는 보강층을 채용하여 벨트부의 상하 변형 및 주행중 성장을 억제시킬 수 있게 하는 것이 제공된 바 있다.In order to prevent an accident due to such a belt deformation, it has been conventionally provided that a reinforcing layer having a cord of fiber or synthetic yarn is adopted on the upper layer of the belt portion so as to suppress the vertical deformation of the belt portion and growth during driving.

현재 널리 사용되고 있는 보강층은 원주방향으로 하나로 연결된 코드를 타이어 횡방향으로 조밀하게 연속적으로 1개 혹은 2개 층으로 배열하여 원주 방향으로 1개의 접합부를 가지게 하는 것과, 일정 가닥의 묶음을 원주방향으로 와인딩하고 횡방향으로 점차 겹쳐지는 부위를 확장시켜 원주 방향 접합부를 최소화시키는 두 가지 방법이 있다.The widely used reinforcing layer is arranged in one or two layers of cords connected in one circumferential direction with one or two layers in a circumferential direction, and has one joint in the circumferential direction, and winding a bundle of strands in the circumferential direction. There are two ways of minimizing the circumferential junction by expanding the overlapping portion gradually in the transverse direction.

그러나 이와 같은 종래의 벨트 외측 위의 보강층 구조는 횡방향으로의 보강이 불가능하여, 횡방향 변형에 의한 연비 저하, 마모 증가, 핸들링성능 저하 등을 막을 수 없는 단점이 있는 것이다.However, such a conventional reinforcing layer structure on the outside of the belt can not be reinforced in the transverse direction, there is a disadvantage that can not prevent the fuel economy, increased wear, reduced handling performance due to the transverse deformation.

본 발명은 상기와 같은 종래의 문제점을 해결하기 위한 것으로서, 트래부내에 카카스와 벨트층의 사이에 설치되는 보강층의 구조를 추가하고, 상기 보강층의 코드의 방향을 타이어 단면상의 횡방향으로 향하게 시키며, 상기 코드를 타이어 원주상에 연속적으로 배열시킴으로써, 선회시의 코너링포스(Cornering Force)를 높여 핸들링성능을 향상시키고, 타이어 트레드 내마모 성능을 높이고, 연비성능을 향상시키는 차량용 공기입 타이어를 제공함에 그 목적이 있다.The present invention is to solve the above conventional problems, add a structure of the reinforcing layer provided between the carcass and the belt layer in the trachea, and to direct the direction of the cord of the reinforcing layer in the transverse direction on the tire cross section, By continuously arranging the cords on the circumference of the tire, it provides a pneumatic tire for a vehicle that improves handling performance by increasing cornering force during turning, improves tire tread wear resistance, and improves fuel efficiency. There is a purpose.

이하, 첨부된 도면에 따라 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

첨부된 도면 도 1 본 발명에 따른 공기입 타이어를 도시한 단면도이고, 도 2 는 본 발명의 요부인 보강층을 발췌하여 도시한 평면도이다.1 is a cross-sectional view showing a pneumatic tire according to the present invention, Figure 2 is a plan view showing an extract of the reinforcing layer which is the main part of the present invention.

본 발명은 트레드(1)와 사이드(2)월 및 비드부(3)로 구성되고, 상기 트레드부의 내부에 벨트층(4)이 설치되며, 상기 벨트층(4)의 저면에 보강층(5)이 설치되는 것에 있어서, 상기 보강층 코드(50)의 방향이 타이어의 횡방향을 향하고, 이러한 코드들이 타이어의 원주상으로 연속적으로 배열되어 구성되는 것을 특징으로 한다.The present invention is composed of a tread (1), side (2) wall and the bead (3), the belt layer 4 is provided inside the tread portion, the reinforcing layer (5) on the bottom surface of the belt layer (4) In this installation, the reinforcement layer cord 50 is oriented in the transverse direction of the tire, and these cords are configured to be continuously arranged on the circumference of the tire.

상기 보강층(5)은 카카스와 벨트층 사이에 설치시키며, 코드(50)의 길이는 대략 벨트층의 횡방향 폭(A)보다 40~120mm 짧은 범위에서 구성시키는 것이 바람직하다. 이러한 구성은 벨트부 끝단에서 작용하는 응력 집중의 분산을 유도하여 고속 주행중의 벨트 세파레이션을 방지하는 역할을 한다.The reinforcing layer 5 is provided between the carcass and the belt layer, and the length of the cord 50 is preferably configured in the range of 40 to 120 mm shorter than the transverse width A of the belt layer. This configuration induces the dispersion of the stress concentration acting at the belt end and serves to prevent belt separation during high speed travel.

상기 코드(50)의 재질은 섬유 또는 합성사 및 스틸, 그라스파이버 등의 다양한 재질로 형성시킬 수 있는 것이다.The material of the cord 50 may be formed of various materials such as fiber or synthetic yarn and steel, glass fiber, and the like.

이때 상기 코드(50)의 구조는 단일 가닥 혹은 복수 가닥의 꼬임으로 구성할 수 있다. 또한, 코드 단면적의 총합이 보강층 전체 단면적의 10-70%인 것이 바람직 하다. In this case, the structure of the cord 50 may be configured by twisting a single strand or a plurality of strands. It is also preferred that the sum of the cord cross-sectional areas is 10-70% of the total cross-sectional area of the reinforcing layer.

횡방향 코드를 가진 보강층의 설치를 통하여 횡방향 압축력 및 변형에 저항하는 힘을 발생시키고 이를 통하여 횡방향 변형을 억제하여 연비, 내마모, 핸들링 등의 성능을 향상시킬 수 있게 되는 것이다.Through the installation of the reinforcing layer having a transverse cord to generate a force that resists the transverse compressive force and deformation, thereby suppressing the transverse deformation to improve the performance of fuel economy, wear resistance, handling and the like.

본 발명은 전술한 실시 예에 한정되지 않고 본 발명의 기술사상이 허용하는 범위 내에서 다양하게 변형하여 실시할 수가 있다.The present invention is not limited to the above embodiments, and various modifications can be made within the scope allowed by the technical idea of the present invention.

도 3은 선회시의 코너링포스(cornering force)와 슬립앵글(slip angle)에 대한 본 발명의 타이어와 종래의 타이어의 성능을 비교 실험한 결과의 그래프이며, 도 4와 도 5는 롤링리지스턴스(rolling resistance)를 비교실험한 결과의 표와 그래프이다. 상기 실험결과에서 알 수 있듯이 본 발명에 따르면 선회시의 Cornering Force를 높여 Handling 성능을 향상시키고, 타이어 트레드 내마모 성능을 높이며, 연비 성능 향상시키는 효과가 있다.3 is a graph showing the results of comparing the performance of the tire and the conventional tire of the present invention with respect to the cornering force (cornering force) and slip angle (slip angle) at the time of turning, Figures 4 and 5 is a rolling resistance ( Table and graph of the results of comparative rolling tests. As can be seen from the above test results, according to the present invention, the cornering force during turning is improved to improve handling performance, tire tread wear resistance, and fuel efficiency.

Claims (6)

삭제delete 트레드와 사이드월 및 비드부로 구성되고, 상기 트레드부의 내부에 벨트층이 설치되며, 상기 벨트층의 저면에 보강층이 설치되고, 상기 보강층 코드의 방향이 타이어의 횡방향을 향하고, 이러한 코드들이 타이어의 원주상으로 연속적으로 배열되어 구성되는 것에 있어서, 상기 보강층 코드의 길이가 벨트층의 횡방향 폭(A)보다 40-120mm 짧은 것을 특징으로 하는 차량용 공기입 타이어.Comprising a tread and sidewalls and a bead portion, a belt layer is installed inside the tread portion, a reinforcement layer is installed on the bottom of the belt layer, the direction of the reinforcement layer cord is in the transverse direction of the tire, these cords of the tire A vehicle pneumatic tire, wherein the length of the reinforcing layer cord is 40 to 120 mm shorter than the transverse width A of the belt layer. 삭제delete 삭제delete 삭제delete 삭제delete
KR1020060084742A 2006-09-04 2006-09-04 Pneumatic vehicle tire KR100766529B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR850004042A (en) * 1983-10-04 1985-07-01 원본미기재 Pneumatic tire
KR900012779A (en) * 1989-02-06 1990-09-01 이에이리 아끼라 Pneumatic tire
JPH10151912A (en) 1996-11-26 1998-06-09 Bridgestone Corp Pneumatic tire

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR850004042A (en) * 1983-10-04 1985-07-01 원본미기재 Pneumatic tire
KR900012779A (en) * 1989-02-06 1990-09-01 이에이리 아끼라 Pneumatic tire
JPH10151912A (en) 1996-11-26 1998-06-09 Bridgestone Corp Pneumatic tire

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