KR20010036386A - Bead core for tire - Google Patents

Bead core for tire Download PDF

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Publication number
KR20010036386A
KR20010036386A KR1019990043385A KR19990043385A KR20010036386A KR 20010036386 A KR20010036386 A KR 20010036386A KR 1019990043385 A KR1019990043385 A KR 1019990043385A KR 19990043385 A KR19990043385 A KR 19990043385A KR 20010036386 A KR20010036386 A KR 20010036386A
Authority
KR
South Korea
Prior art keywords
bead core
tire
bead
rim
core
Prior art date
Application number
KR1019990043385A
Other languages
Korean (ko)
Inventor
공천우
이희태
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.)
Filing date
Publication date
Application filed by 조충환, 한국타이어 주식회사 filed Critical 조충환
Priority to KR1019990043385A priority Critical patent/KR20010036386A/en
Publication of KR20010036386A publication Critical patent/KR20010036386A/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
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/04—Bead cores
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • 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
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/04—Bead cores
    • B60C2015/044—Bead cores characterised by a wrapping layer

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

Abstract

PURPOSE: A bead core for tire tightens an attaching force between a rim and a tire and improves the braking performance of a vehicle. CONSTITUTION: A bead core(2) comprises an outer bead core(20) and an inner bead core(30). The outer bead core(20) is made of many cylindrical pipes. The inner bead core(30) is formed as a coil spring shape. As the inner bead core(30) has tension, a bead portion(1) is tightly pressed and installed on a rim(4) by the tension of the inner bead core(30) when a tire is mounted on the rim(4). Thus, a slip phenomenon between the bead portion(1) and the rim(4) are prevented. Further, a braking performance is improved because slots formed among the pipes are disposed perpendicularly to a braking direction.

Description

타이어용 비드코아 { Bead core for tire }Bead core for tire {Bead core for tire}

본 발명은 공기입 타이어의 비드코아에 관한 것으로, 더욱 상세하게는 비드코아의 구조를 개량하여 림과의 결합력을 견고하게 하고, 제동 성능을 향상시킨 타이어용 비드코아에 관한 것이다.The present invention relates to bead cores of pneumatic tires, and more particularly, to bead cores for tires that have improved bead core structure to firmly bond with the rim and improve braking performance.

일반적으로 비드란 타이어가 자동차의 휠 디스크에 결합하는 부분을 말하는 것으로, 비드는 자동차에 부착된 타이어가 주행 중 이탈하는 것을 방지하는 역할을 하므로 높은 기술력과 고품질의 재료를 필요로 한다.Generally, a bead refers to a portion of a tire coupled to a wheel disk of a vehicle, and the bead requires high technology and high quality materials because the tire is attached to the vehicle to prevent the tire from being detached while driving.

비드코아는 고강력 스틸와이어에 일정한 두께로 고무를 입혀 여러 층으로 감아 만들어지며, 여기에 필러(Filler)를 덮어서 하나의 비드를 만들게 되는 것이다.Bead cores are made of high-strength steel wire with a certain thickness of rubber and wound into several layers, covering a filler to form a bead.

비드코아는 동으로 도금된 고장력 스틸 와이어가 재료로 사용되며, 강도, 비틀림과 굽힘을 포함한 여러 가지 시험을 거친 스틸 와이어가 풀링롤에 의해 풀려나오면서 타이어의 종류와 크기에 따라 가이드 롤을 통과하면서 특정 수의 가닥으로 모아져 나오게 된다.Bead cores are made of copper plated high-strength steel wire, and the steel wire, which has undergone various tests including strength, torsion, and bending, is released by the pulling roll, and passes through the guide roll according to the tire type and size. Collected into strands of water.

모아진 스틸 와이어는 작은 압출기를 통과하면서 와이어 가닥 사이와 둘레에 고무가 입혀지게 되고, 고무가 입혀진 와이어가닥은 타이어의 규격에 맞추어 정해진 크기와 모양대로 비드와이어 성형기인 훠머(Former)에 감겨지게 된다.The collected steel wire is passed through a small extruder and rubber is coated between and around the wire strand, and the rubber coated wire strand is wound on a bead wire forming machine according to the size and shape of the tire.

비드와이어 성형 기계는 자동적으로 사양에 따른 회전수만큼 감고 와이어 끝은 겹치게 만든 후 절단한다.The bead wire forming machine automatically winds up according to the specifications and the wire ends overlap and then cut.

절단한 부분은 들뜨지 않도록 끝을 고무가 입혀진 코드지로 감싸주게 되며, 이와 같은 것을 비드코아라 한다.The cut part is wrapped with rubberized coded paper to prevent it from lifting. This is called bead core.

이와 같은 종래의 비드코아 구조는 다수의 와이어가 원주상으로 연속하여 권회되고 몇 가닥의 와이어가 꼬인 형태를 갖고 있어 림경이 커지고, 타이어의 편평비가 낮아질 수록 림과의 결합력이 저하되는 문제점이 있으며, 제동시 제동 방향과 와이어의 권회방향이 일치하여 비드부와 림간의 일정량의 밀림이 발생되는 것을 감수할 수밖에 없는 문제점이 있었다.The conventional bead core structure has a problem that a plurality of wires are wound continuously in a circumferential shape and a few strands of wire are twisted to increase the rim diameter, and as the flatness ratio of the tire decreases, the bonding force with the rim decreases. When braking, the braking direction coincided with the winding direction of the wire, there was a problem that a certain amount of rolling occurred between the bead portion and the rim.

본 발명은 상기와 같은 종래의 문제점을 해결하기 위한 것으로서, 본 발명은 비드코아의 구조를 개량하여 림과의 결합력을 견고하게 하고, 제동시 림과 비드부와의 사이에서 발생되는 밀림 현상을 억제시켜 제동 성능을 향상시킨 타이어용 비드코아를 제공함에 그 목적이 있다.The present invention is to solve the conventional problems as described above, the present invention improves the structure of the bead core to strengthen the bonding force with the rim, and suppresses the sliding phenomenon generated between the rim and the bead portion during braking The purpose of the present invention is to provide a bead core for a tire having improved braking performance.

본 발명은 상기와 같은 목적을 달성하기 위하여 다음과 같이 구성된다. 즉, 본 발명은 타이어의 비드부내에 설치되는 비드코아에 있어서, 상기 비드코아를 원통형의 외측비드코아와 상기 외측비드코아의 내부에 삽입되는 내측비드코아로 구성시키되, 상기 내측비트코아를 코일 스프링의 형상으로 형성시켜 구성되는 것에 특징을 둔 것이다.The present invention is configured as follows to achieve the above object. That is, in the bead core installed in the bead portion of the tire, the bead core is composed of a cylindrical outer bead core and an inner bead core inserted into the outer bead core, wherein the inner bit core is a coil spring It is characterized by being formed in the shape of.

도 1 은 본 발명에 따른 비드코아가 설치된 비드부를 발췌 도시한 단면도1 is a cross-sectional view showing the bead portion is installed bead core according to the present invention

도 2 는 본 발명의 비드코아를 도시한 단면도2 is a cross-sectional view showing the bead core of the present invention.

〈도면의 주요 부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>

1. 비드부 2. 비드코아1. Bead part 2. Bead core

20. 외측비드코아 21. 경사면20. Outer Bead Core 21. Slope

25. 홈 4. 림25. Home 4. Rim

이하에서는 첨부된 도면을 참조하여 본 발명의 바람직한 실시 예를 상세히 설명하기로 한다.Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention;

첨부된 도면 도 1 은 본 발명에 따른 비드코아가 설치된 비드부를 발췌 도시한 단면도이고, 도 2 는 본 발명의 비드코아를 도시한 단면도이다.1 is a cross-sectional view showing the bead portion is installed bead core according to the present invention, Figure 2 is a cross-sectional view showing the bead core of the present invention.

도 1 및 도 2 에 도시되는 바와 같이, 본 발명은 타이어의 비드부(1)내에 설치되는 비드코아(2)에 있어서, 상기 비드코아(2)를 외측비드코아(20)와, 상기 외측비드코아(20)의 내부에 삽입되는 내측비드코아(30)로 구성시키되, 상기 외측비드코아(20)는 다수의 원통형 관체로 형성시키고, 내측비드코아(30)는 코일 스프링의 형상으로 형성시켜 구성되는 것으로서, 상기 내측비드코아(30)는 인장력에 대하여 탄성력을 가지는 인장 스프링으로 형성되고, 상기 원통 형상으로 형성되는 외측비드코아(20)의 단부주연에 경사면(21)을 형성시켜 근접하는 원통형 관체와의 사이에 홈(25)이 형성되도록 구성되는 것이다.As shown in FIG. 1 and FIG. 2, in the bead core 2 provided in the bead part 1 of a tire, this bead core is made into the outer bead core 20 and the outer bead. The inner bead core 30 is inserted into the core 20, but the outer bead core 20 is formed of a plurality of cylindrical tubular body, the inner bead core 30 is formed in the shape of the coil spring As such, the inner bead core 30 is formed of a tension spring having an elastic force with respect to the tensile force, the cylindrical tubular body to form an inclined surface 21 on the end circumference of the outer bead core 20 is formed in the cylindrical shape close The grooves 25 are formed between the grooves.

이와 같이 구성되는 본 발명은 내측비드코아(30)가 인장력을 가짐에 따라 타이어를 림에 장착시켰을 때 내측비드코아(30)의 인장력에 의해 비드부(1)가 림(4)에 견고하게 압착 설치된다.According to the present invention configured as described above, when the inner bead core 30 has a tensile force, the bead portion 1 is firmly pressed against the rim 4 by the tension force of the inner bead core 30 when the tire is mounted on the rim. Is installed.

이로 인하여 비드부(1)와 림(4)과의 사이에서 발생되는 밀림 현상을 방지할 수 있게 되는 것이다.As a result, it is possible to prevent the phenomena occurring between the bead portion 1 and the rim 4.

또한 외측비드코아(20)를 구성하는 다수의 관체 사이에 형성되는 홈(25)이 제동 방향과 직각으로 위치됨에 따라 제동 성능 또한 향상되는 것이다.In addition, as the grooves 25 formed between the plurality of tubular bodies constituting the outer bead core 20 are positioned at right angles to the braking direction, the braking performance is also improved.

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.

이상에서와 같이 본 발명에 따르면 림과의 결합력을 견고하게 하고, 제동시 림과 비드부와의 사이에서 발생되는 밀림 현상을 억제시켜 제동 성능을 향상시킬 수 있는 효과가 있다.As described above, according to the present invention, it is possible to strengthen the bonding force with the rim and to improve the braking performance by suppressing the phenomena generated between the rim and the bead part during braking.

Claims (3)

타이어의 비드부(1)내에 설치되는 비드코아(2)에 있어서, 상기 비드코아(2)를 외측비드코아(20)와, 상기 외측비드코아(20)의 내부에 삽입되는 내측비드코아(30)로 구성시키되, 상기 외측비드코아(20)는 다수의 원통형 관체로 형성시키고, 내측비드코아(30)는 코일 스프링의 형상으로 형성시켜 구성되는 것을 특징으로 하는 타이어용 비드코아.In the bead core 2 provided in the bead part 1 of a tire, the said bead core 2 is inserted into the outer bead core 20 and the inside bead core 20 inserted inside the outer bead core 20. ), But the outer bead core 20 is formed of a plurality of cylindrical tubular body, the inner bead core 30 is a bead core for the tire, characterized in that formed by the shape of the coil spring. 제 1 항에 있어서, 상기 내측비드코아(30)는 인장력에 대하여 탄성력을 가지는 인장 스프링으로 형성시켜 구성되는 것을 특징으로 하는 타이어용 비드코아.The bead core of claim 1, wherein the inner bead core (30) is formed by a tension spring having an elastic force with respect to the tensile force. 제 1 항 또는 제 2 항에 있어서, 상기 원통 형상으로 형성되는 외측비드코아(20)의 단부주연에 경사면(21)을 형성시켜 근접하는 원통형 관체와의 사이에 홈(25)이 형성되도록 구성시킨 것을 특징으로 하는 타이어용 비드코아.The inclined surface 21 is formed in the end periphery of the outer bead core 20 formed in the said cylindrical shape, Comprising: The groove | channel 25 is formed between the adjacent cylindrical tubular bodies. Bead core for tire, characterized in that.
KR1019990043385A 1999-10-08 1999-10-08 Bead core for tire KR20010036386A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019990043385A KR20010036386A (en) 1999-10-08 1999-10-08 Bead core for tire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019990043385A KR20010036386A (en) 1999-10-08 1999-10-08 Bead core for tire

Publications (1)

Publication Number Publication Date
KR20010036386A true KR20010036386A (en) 2001-05-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019990043385A KR20010036386A (en) 1999-10-08 1999-10-08 Bead core for tire

Country Status (1)

Country Link
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