KR19980061885U - Radial pneumatic tires using shape memory alloy cords - Google Patents
Radial pneumatic tires using shape memory alloy cords Download PDFInfo
- Publication number
- KR19980061885U KR19980061885U KR2019970006171U KR19970006171U KR19980061885U KR 19980061885 U KR19980061885 U KR 19980061885U KR 2019970006171 U KR2019970006171 U KR 2019970006171U KR 19970006171 U KR19970006171 U KR 19970006171U KR 19980061885 U KR19980061885 U KR 19980061885U
- Authority
- KR
- South Korea
- Prior art keywords
- tire
- shape memory
- memory alloy
- cord
- tread
- Prior art date
Links
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
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
- B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
- B60C9/2003—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by the materials of the belt cords
-
- 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
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
- B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
- B60C2009/2074—Physical properties or dimension of the belt cord
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
본 고안은 벨트부(1)의 코드(2) 재질을 형상기억합금 재질로 한 것을 특징으로 하는 레디얼 공기입 타이어에 관한 것으로서, 종래의 단순 스틸 코드(5)를 대체하여 형상기억합금을 벨트부(1)의 코드(2) 재질로 사용함으로써, 고속주행시 트레드 레디어스를 줄여서 스탠딩 웨이브 발생시간을 지연시켜 타이어의 속도내구력을 향상시킬 수 있는 것이다.The present invention relates to a radial pneumatic tire characterized in that the cord 2 of the belt portion 1 is made of a shape memory alloy material and is characterized by replacing the conventional simple steel cord 5 with a shape memory alloy, (2) of the tire (1), it is possible to reduce the tread radii at the time of high-speed traveling, thereby delaying the standing wave generation time, thereby improving the tire durability.
Description
본 고안은 공기입 타이어의 벨트 코드가 형상기억합금 재질로 이루어진 공기입 타이어에 관한 것이다.The present invention relates to a pneumatic tire in which the belt cord of a pneumatic tire is made of a shape memory alloy material.
일반적으로, 타이어가 고속주행으로 인하여 스탠딩 웨이브 포인트에 도달하면, 타이어의 트레드에 굴곡이 형성되어 서 세퍼레이션(분리: Separation)이 발생하며, 한 번 완전히 스탠딩 웨이프 포인트를 지나게 된 타이어는 사용이 불가능하게 된다. 그래서 이와 같은 문제(즉, 속도내구력의 저하)를 해결하기 위한 방법중의 하나로서, 트레드 레디어스를 작게 만들어서 스탠딩 웨이브 발생시간을 지연시켜 속도내구력을 향상시키는 방법이 있다.Generally, when a tire reaches a standing wave point due to high-speed travel, the tread of the tire is bent to form separation, and once the tire has passed completely the standing wave point, It becomes impossible. Therefore, as one of the methods for solving such a problem (that is, deterioration of the speed durability), there is a method of reducing the tread radiality and delaying the standing wave generation time to improve the speed durability.
그러나, 종래의 공기입 타이어에서는 트레드의 이상 마모 등과 같은 현상 때문에, 속도내구력을 향상시키기 위한 트레드 레디어스의 변경이 용이하지 않았다. 즉, 속도내구력이 저하되었을 때, 속도내구력의 향상을 위하여 트레드 레디어스 조정을 행하면 타이어의 다른 성능에 영향을 주기 때문에 트레드 레디어스의 조절이 용아하지 않다.However, in the conventional pneumatic tire, it is not easy to change the tread radii for improving the speed durability due to the phenomenon such as abnormal wear of the tread. In other words, when the speed durability is degraded, adjustment of the tread radii for improving the durability of the speed affects other performance of the tire, so that adjustment of the tread radii is not sufficient.
따라서, 본 고안은, 상기와 같은 종래기술에서 문제가 되는 것들을 해결하기 위하여, 벨트 코드를 형상기억합금 코드로 함으로써, 평상시에는 종래 타이어의 벨트코드와 동일한 효과를 내다가, 고속주행시에는 타이어의 트레드 레디어스를 줄어들게 하여 스탠딩 웨이브 발생포인트를 지연시켜, 공기입 타이어의 속도내구력을 향상함이 본 고안의 과제이다.Therefore, in order to solve the problems in the conventional technology as described above, the present invention has the effect that the belt cord is made of the shape memory alloy code, and at the time of normal operation, the same effect as the belt code of the conventional tire is obtained, It is an object of the present invention to reduce the radials to delay the standing wave generation point and to improve the speed durability of the pneumatic tire.
제1도는 본 고안의 공기입 타이어의 단면도,1 is a cross-sectional view of a pneumatic tire of the present invention,
제2도는 종래의 공기입 타이어의 단면도,FIG. 2 is a cross-sectional view of a conventional pneumatic tire,
제3도는 본 고안의 공기입 타이어가 일반주행할 때의 타이어 상태도,FIG. 3 is a diagram showing the state of the tire when the pneumatic tire according to the present invention is running,
제4도는 본 고안의 공기입 타이어가 고속주행할 때의 타이어 상태도.Fig. 4 is a tire state diagram when the pneumatic tire of this invention is traveling at a high speed.
*도면의 주요부분에 대한 부호의 설명*Description of the Related Art [0002]
1.... 본 고안의 벨트부,2.... 형상기억합금코드,1 .... belt portion of the present invention, 2 .... shape memory alloy cord,
3.... 트레드.3 .... Tread.
본 고안은 제1도와 같은 구조로서, 1은 형상기억합금 코드(2)로 이루어진 벨트부이고, 제2도에서 나탄대는 종래 타이어의 일반 스틸 코드(5)로 이루어진 벨트부(4)와 동일한 형상을 이루고 있다.2 is a belt section composed of a shape memory alloy cord 2. In figure 2, a flat section is formed in the same shape as the belt section 4 made of a conventional steel cord 5 of a conventional tire, .
제3도는 본 고안의 자동차가 일반주행할 때의 타이어의 상태를 나타내는 도면으로서, 본 고안의 벨트부(1)가 종래의 벨트부(4)와 동일한 트레드 레디어스를 이루다가, 자동차의 속도가 일정속도 이상으로 되면(타이어에서 임계속도 이상이 되면 타이어 내부에는 고온의 열이 발생한다) 형상기억합금 코드(2)가 이미 기억된 기억형상(즉, 트레드 레디어스가 일반 상태보다 작은 모양)으로 회귀하여, 제4도에서 나타내는 바와 같이 트레드 레디어스가 줄어든 타이어로 변형된다.3 is a view showing the state of the tire when the automobile of the present invention is running in general. The belt portion 1 of the present invention forms the same tread radial as the conventional belt portion 4, When the speed exceeds the predetermined speed (when the speed exceeds a critical speed in the tire, high-temperature heat is generated in the tire). The shape memory alloy code 2 is stored in the memory shape (i.e., the tread radial is smaller than the normal state) As shown in FIG. 4, the tire is deformed into a tire with reduced tread radii.
본 고안에서 사용한 형상기억합금 코드(2)는, 상온에서는 일반적 금속과 동일한 운동을 하다가 고온에 도달하며는 형상기억합금 코드(2)에 기억되어져 있는 기억형상(즉, 본 고안에서 사용한 방법은 종래의 트레드 레디어스보다 더 작게 함)으로 되돌아 가려는 회귀력이 발생하여 기억된 형상으로 되돌아가므로 인하여, 스탠딩 웨이브 발생시간을 지연시키는 작용을 한다.The shape memory alloy cord 2 used in the present invention is a shape memory alloy cord 2 that has the same motion as ordinary metal at normal temperature and then reaches a high temperature and is stored in the shape memory alloy cord 2 The tread radii of the standing waves are smaller than the tread radii of the standing waves), so that the standing wave generation time is delayed because the returning force is returned to the stored shape.
형상기억합금 코드(2)를 사용함으로써, 고속주행시 타이어에 발생하는 스탠딩 웨이브 발생시간을 지연시켜 타이어의 속도내구력을 향상시키는 효과가 있다.The use of the shape memory alloy cord 2 has the effect of improving the speed durability of the tire by delaying the standing wave generation time occurring in the tire at a high speed.
..
본 고안은 스탠딩 웨이브(Standing wave: 공기압이 불충분한 상태에서 고속으로 주행할 때 타이어의 접지부 하중개방측에 생기는 파상 현상) 발생에 의한 타이어의 속도내구력의 저하를 방지하기 위하여, 종래의 단순 스틸 코드로 이루어진 벨트코드를 형상기억합금 코드로 대체함으로써, 스탠딩 웨이브 발생시간을 지연시켜 타이어의 속도내구력을 향상시키는데 그 목적이 있다.In order to prevent the decrease in the speed durability of a tire due to the occurrence of a standing wave (wave phenomenon occurring on the unloading side of a tire when the tire is running at a high speed under insufficient air pressure), the conventional simple steel An object of the present invention is to improve the speed durability of a tire by delaying the standing wave generation time by replacing a belt cord made of a cord with a shape memory alloy cord.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019970006171U KR200188432Y1 (en) | 1997-03-28 | 1997-03-28 | Pnewmatic radial tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019970006171U KR200188432Y1 (en) | 1997-03-28 | 1997-03-28 | Pnewmatic radial tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980061885U true KR19980061885U (en) | 1998-11-16 |
| KR200188432Y1 KR200188432Y1 (en) | 2000-08-01 |
Family
ID=19498134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019970006171U KR200188432Y1 (en) | 1997-03-28 | 1997-03-28 | Pnewmatic radial tire |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR200188432Y1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010008873A2 (en) * | 2008-06-24 | 2010-01-21 | Gm Global Technology Operations, Inc | Reducing tire rolling resistance through pre-heating |
-
1997
- 1997-03-28 KR KR2019970006171U patent/KR200188432Y1/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010008873A2 (en) * | 2008-06-24 | 2010-01-21 | Gm Global Technology Operations, Inc | Reducing tire rolling resistance through pre-heating |
| WO2010008873A3 (en) * | 2008-06-24 | 2010-05-06 | Gm Global Technology Operations, Inc | Reducing tire rolling resistance through pre-heating |
Also Published As
| Publication number | Publication date |
|---|---|
| KR200188432Y1 (en) | 2000-08-01 |
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