KR20000025780A - Tire for vehicle improving conductive property - Google Patents

Tire for vehicle improving conductive property Download PDF

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Publication number
KR20000025780A
KR20000025780A KR1019980042987A KR19980042987A KR20000025780A KR 20000025780 A KR20000025780 A KR 20000025780A KR 1019980042987 A KR1019980042987 A KR 1019980042987A KR 19980042987 A KR19980042987 A KR 19980042987A KR 20000025780 A KR20000025780 A KR 20000025780A
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KR
South Korea
Prior art keywords
tread
tire
static electricity
ground
cap
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KR1019980042987A
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Korean (ko)
Inventor
송영
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홍건희
한국타이어 주식회사
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Application filed by 홍건희, 한국타이어 주식회사 filed Critical 홍건희
Priority to KR1019980042987A priority Critical patent/KR20000025780A/en
Publication of KR20000025780A publication Critical patent/KR20000025780A/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
    • B60C19/00Tyre parts or constructions not otherwise provided for
    • B60C19/08Electric-charge-dissipating arrangements
    • B60C19/082Electric-charge-dissipating arrangements comprising a conductive tread insert
    • 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
    • B60C11/00Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/0041Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers
    • B60C11/005Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers with cap and base layers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/02Elements
    • C08K3/04Carbon
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/34Silicon-containing compounds
    • C08K3/36Silica

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Abstract

PURPOSE: A tire improving electric conductivity is provided to prevent static electricity from generating by charging to the ground through the tire. CONSTITUTION: A tread unit(2) of a tire(1) comprises an under tread(22) and a cap tread(20). The under tread is made into a rubber composite ion containing carbon and the cap tread is made into a rubber composite ion containing silica. The cap tread forms a through hole(21) and the rubber composite ion of the under tread is exposed to the surface of the cap tread through the through hole. Therefore, the under tread exposed to the surface of the cap tread containing silica having a low electric conductivity, conducts static electricity from a vehicle to the ground so as to prevent the occurrence of the static electricity.

Description

전도성을 향상시킨 자동차용 타이어Automotive tires with improved conductivity

본 발명은 전도(傳導)성을 향상시킨 자동차용 타이어에 관한 것으로, 더욱 상세하게는 차량에서 발생되는 정전기가 타이어를 통하여 지면에 흐르게 함으로써, 정전기 발생을 억제시킬 수 있게 하는 자동차용 타이어에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to automotive tires having improved conduction, and more particularly, to automotive tires that allow static electricity generated in a vehicle to flow through the tire to the ground, thereby suppressing the generation of static electricity. .

일반적으로 자동차에서 발생되는 정전기는 탑승자에게 불쾌감을 주게 됨은 물론 주유시에 발생되는 정전기는 대형 폭팔 사고를 유발시키게 되는 원인으로도 지적된다.In general, the static electricity generated in the car causes discomfort to the occupant, and the static electricity generated during the fueling may cause a large explosion.

이와 같이 차량에서 발생되는 정전기를 지면에 흘려 보내기 위하여 차량의 후미에 지면과 접촉되는 접지단을 설치시키게 되나 접지단이 지면과의 마찰에 의해 쉽게 마모되고 이탈되는 결점과 아울러 차량에서 발생되는 정전기의 대부분은 타이어를 통하여 지면에 통전되는 것이다.Thus, in order to send the static electricity generated from the vehicle to the ground, a ground end contacting the ground is installed at the rear of the vehicle, but the ground end is easily worn and detached by friction with the ground, and most of the static electricity generated in the vehicle Is energized to the ground through the tire.

타이어라 함은 그 주성분이 부도체인 고무로 형성되어 차량에서 발생되는 정전기를 지면에 통전시킬 수 없는 것이라 생각할 수 있으나, 타이어의 고무물성을 보강시키기 위하여 배합되는 카본 성분이 전도성이 우수하여 대부분의 정전기가 타이어를 통하여 지면에 통전되면서 정전기 발생을 억제시키는 역할을 하게 되는 것이다.Tires can be considered that the main component is made of rubber, which is a non-conductor, so that the static electricity generated from the vehicle cannot be applied to the ground.However, most of the static electricity is due to the excellent conductivity of the carbon component blended to reinforce the rubber properties of the tire. The electricity is supplied to the ground through the tire to serve to suppress the generation of static electricity.

타이어의 성능을 향상시키기 위한 부단한 연구의 결과로 첨부된 도면 도 1 에 도시되는 바와 같이,트래드(2)부 표면 즉, 캡트래드(20)를 카본 대신에 실리카를 함유하는 고무 재질로 형성시킴으로서, 젖은 모면에서의 미끄럼 방지 성능과 마른 노면에서의 구동력과 제동력 등은 물론 저연비 성능을 향상시킬 수 있는 타이어가 개발되기에 이르렀다.As shown in the accompanying drawings as a result of constant research to improve the performance of the tire, by forming the surface of the tread 2, that is, the cap tread 20 with a rubber material containing silica instead of carbon, Tires have been developed that can improve low fuel efficiency as well as anti-slip performance on wet woolen surfaces, driving and braking power on dry road surfaces.

그러나 실리카로 배합된 고무 조성물로 트래드의 표면이 형성되는 타이어의 경우 실리카재질이 전도성이 매우 낮기 때문에 차량에서 발생되는 정전기를 지면에 통전시키지 못하는 결점이 있는 것이다.However, in the case of tires in which the surface of the tread is formed of a rubber composition blended with silica, since the silica material has very low conductivity, there is a drawback in that static electricity generated in a vehicle cannot be conducted to the ground.

본 발명은 전술한 문제점을 해결하기 위해 안출된 것으로서, 본 발명은 트래드의 표면이 실리카재질로 형성되는 타이어에 있어서도 차량에서 발생되는 정전기가 타이어를 통하여 지면에 흐르게 함으로써, 정전기 발생을 억제시킬 수 있게 하는 자동차용 타이어를 제공함에 그 목적이 있다.The present invention has been made to solve the above-mentioned problems, the present invention is to prevent the generation of static electricity by allowing the static electricity generated in the vehicle flows to the ground through the tire even in the tire surface of the tread is formed of silica material The purpose is to provide a tire for an automobile.

본 발명은 상기와 같은 목적을 달성하기 위해서 다음과 같이 구성된다. 즉, 본 발명은 타이어의 트래드부가 언더트래드와 캡트래드로 형성되고, 언더트래드는 카본이 함유된 고무 조성물로 형성되며, 캡트래드는 실리카가 함유된 고무 조성물로 형성되는 것에 있어서, 상기 캡트레드에 통공이 형성되고, 상기 통공을 통하여 언더트래드의 고무 조성물이 캡트래드의 표면으로 노출되도록 형성시켜 구성되는 것에 특징은 둔 것이다.The present invention is configured as follows to achieve the above object. That is, in the present invention, the tread portion of the tire is formed of an undertread and a captread, the undertread is formed of a rubber composition containing carbon, and the captread is formed of a rubber composition containing silica. A through-hole is formed, and the through-hole is characterized in that the rubber composition of the undertread is formed to be exposed to the surface of the captrad.

도 1 은 일반적인 자동차용 타이어의 트래드부를 발췌하여 도시한 단면도1 is a cross-sectional view showing an extract of the tread portion of a general automotive tire

도 2 는 본 발명에 따른 자동차용 타이어의 트래드부를 발췌 도시한 단면도Figure 2 is a cross-sectional view showing an extract of the tread portion of the automobile tire according to the present invention

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

1. 타이어 2. 트래드1. Tire 2. Tread

20. 캡트래드 21. 통공20. Captrad 21. Through

22. 언더트래드22. Undertrad

이하에서는 첨부 도면을 참조하여 본 발명의 바람직한 실시 예를 상세히 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

첨부된 도면 도 2 는 본 발명에 따른 자동차용 타이어의 트래드부를 발췌 도시한 단면도이다.2 is a cross-sectional view showing an extract of the tread portion of a tire for a vehicle according to the present invention.

도 2 에 도시된 바와 같이, 본 발명은 타이어(1)의 트래드부(2)가 언더트래드(22)와 캡트래드(20)로 형성되고, 언더트래드(22)는 카본이 함유된 고무 조성물로 형성되며, 캡트래드(20)는 실리카가 함유된 고무 조성물로 형성되는 것에 있어서, 상기 캡트레드(20)에 통공(21)이 형성되고, 상기 통공(21)을 통하여 언더트래드(22)의 고무 조성물이 캡트래드(20)의 표면으로 노출되도록 형성시켜 구성된 것이다.As shown in FIG. 2, in the present invention, the tread portion 2 of the tire 1 is formed of an undertread 22 and a captread 20, and the undertread 22 is formed of a rubber-containing rubber composition. The cap tread 20 is formed of a rubber composition containing silica, and a through hole 21 is formed in the cap tread 20, and the rubber of the under tread 22 is formed through the through hole 21. It is constructed by forming the composition to be exposed to the surface of the captrad (20).

이와 같이 구성되는 본 발명은 일반적인 타이어와 동일하게 그린 타이어를 형성시키고 이와 같은 그린 타이어를 가류금형내에서 가류시키는 과정에서 가류금형의 내부에 형성된 공기배출구멍에 일정한 길이의 파이프를 연결시키게 되면 가류시 그린 타이어의 트래드(2)면이 가류금형의 내면에 강한 압력으로 압착하게 된다.The present invention constituted as described above forms a green tire in the same way as a general tire, and when a pipe having a predetermined length is connected to an air discharge hole formed inside the vulcanization mold in the process of vulcanizing such a green tire in the vulcanization mold, The tread 2 surface of the green tire is pressed against the inner surface of the vulcanization mold with strong pressure.

이때 금형 내면과 그린 타이어의 트래드면 사이의 공기가 공기배출구멍에 선단에 설치된 파이프를 통하여 배출되면서 파이프가 캡트래드면(20)을 관통하여 파이프의 선단이 언더트래드(22)층에 까지 도달하고 계속되는 브라더의 가압동작에 의해 카본이 함유된 언더트래드(22)의 고무가 파이프를 통하여 밀려나오게 된다.At this time, the air between the inner surface of the mold and the tread surface of the green tire is discharged through the pipe installed at the distal end of the air discharge hole, and the pipe passes through the cap tread surface 20 so that the distal end of the pipe reaches the under tread 22 layer. Subsequent pressurization of the brother causes the rubber of the under-tread 22 containing carbon to be pushed out through the pipe.

이와 같은 가류공정을 마친 타이어의 트래드(2)표면에는 수많은 고무식출이 형성되고, 이와 같은 고무식출의 상단은 캡트래드층(20)의 고무 조성물이 위치되고, 하단은 언더트래드(22)의 고무 조성물이 위치하게 되며, 언던트래드(22)의 고무 조성물의 상단 높이는 캡트래드(20)의 표면 보다 높게 형성된다.A number of rubber extraction is formed on the surface of the tread (2) of the tire after such a vulcanization process, the rubber composition of the cap tread layer 20 is located at the upper end of the rubber extraction, the lower tread 22 The rubber composition of the will be located, the top height of the rubber composition of the unidentified tread 22 is formed higher than the surface of the cap tread (20).

이와 같이 타이어의 트래드(2)면에 형성된 고무식출을 제거하게 되면 캡트래드(20)의 표면에 다수의 언더트래드(22) 고무 조성물이 점상으로 노출된 상태를 이루게 되는 것이다.As such, when the rubber extraction formed on the tread 2 surface of the tire is removed, a plurality of under tread 22 rubber compositions are exposed on the surface of the cap tread 20.

전도성이 낮은 실리카가 함유된 캡트래드(20)의 표면으로 노출된 카본 재질의 언더트래드는 차량으로부터 전도되는 정전기를 지면에 통전시겨 차량에서의 정전기 발생을 억제시키게 되는 것이다.The undertrade of carbon material exposed to the surface of the captrad 20 containing silica having low conductivity is to conduct static electricity conducted from the vehicle to the ground to suppress the generation of static electricity in the vehicle.

이를 종래의 타이어와 전기 저항(Ω)값을 비교하여 본 바, 종래의 타이어는 3GΩ 인데 반하여 본 발명에 따른 타이어는 600Ω 정도인 것을 알 수 있었다.As a result of comparing the tire and the electric resistance value of the conventional tire, it was found that the tire according to the present invention is about 600 kPa, while the conventional tire is 3 Gk.

이는 통상의 자동차 메이커에서 요구하는 조건인 100㏁ 이하의 조건을 만족시킬 수 있는 수치인 것이다.This is a value that can satisfy the conditions of 100 kHz or less, which is a condition required by a normal car manufacturer.

본 발명은 전술한 실시 예에 국한되지 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 of the technical idea of the present invention.

이상에서와 같이 본 발명에 따르면 트래드의 표면이 실리카재질로 형성되는 타이어에 있어서도 차량에서 발생되는 정전기가 타이어를 통하여 지면에 흐르게 함으로써, 정전기 발생을 억제시켜 탑승자에게 불쾌감을 주는 문제점을 일소시킬 수 있게 되고, 주유시 폭발 사고의 원인을 일거에 제거할 수 있는 효과가 있는 것이다.As described above, according to the present invention, even in a tire in which the surface of the tread is formed of silica, static electricity generated in the vehicle flows to the ground through the tire, thereby suppressing the occurrence of discomfort to the occupant by suppressing the generation of static electricity. It is effective to eliminate the cause of the explosion accident at the same time.

Claims (1)

타이어(1)의 트래드(2)부가 언더트래드(22)와 캡트래드(20)로 형성되고, 언더트래드(22)는 카본이 함유된 고무 조성물로 형성되며, 캡트래드(20)는 실리카가 함유된 고무 조성물로 형성되는 것에 있어서, 상기 캡트레드(20)에 통공(21)을 형성시키고, 상기 통공(21)을 통하여 언더트래드(22)의 고무 조성물이 캡트래드(20)의 표면으로 노출되도록 형성시켜 구성되는 것을 특징으로 하는 전도(傳導)성을 향상시킨 자동차용 타이어.The tread 2 portion of the tire 1 is formed of an under tread 22 and a cap tread 20, the under tread 22 is formed of a rubber composition containing carbon, and the cap tread 20 contains silica. In the formed rubber composition, the through hole 21 is formed in the cap tread 20, through the through hole 21 so that the rubber composition of the under tread 22 is exposed to the surface of the cap tread 20 An automobile tire having improved conduction, which is formed by forming.
KR1019980042987A 1998-10-14 1998-10-14 Tire for vehicle improving conductive property KR20000025780A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100644261B1 (en) * 2005-06-27 2006-11-10 한국타이어 주식회사 Anti-static tire process methode

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Publication number Priority date Publication date Assignee Title
EP0658452A1 (en) * 1993-12-14 1995-06-21 PIRELLI COORDINAMENTO PNEUMATICI S.p.A. Antistatic tyre having low-carbon black blends
JPH0971112A (en) * 1994-12-21 1997-03-18 Sumitomo Rubber Ind Ltd Pneumatic tire and manufacture thereof
JPH10175403A (en) * 1996-10-17 1998-06-30 Sumitomo Rubber Ind Ltd Pneumatic tire
KR19980021381U (en) * 1996-10-16 1998-07-15 이관기 Automotive antistatic tires
KR20000020302A (en) * 1998-09-19 2000-04-15 홍건희 Tire preventing static electricity

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0658452A1 (en) * 1993-12-14 1995-06-21 PIRELLI COORDINAMENTO PNEUMATICI S.p.A. Antistatic tyre having low-carbon black blends
JPH0971112A (en) * 1994-12-21 1997-03-18 Sumitomo Rubber Ind Ltd Pneumatic tire and manufacture thereof
KR19980021381U (en) * 1996-10-16 1998-07-15 이관기 Automotive antistatic tires
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