JPH01273703A - Flame resisting tyre - Google Patents
Flame resisting tyreInfo
- Publication number
- JPH01273703A JPH01273703A JP63100142A JP10014288A JPH01273703A JP H01273703 A JPH01273703 A JP H01273703A JP 63100142 A JP63100142 A JP 63100142A JP 10014288 A JP10014288 A JP 10014288A JP H01273703 A JPH01273703 A JP H01273703A
- Authority
- JP
- Japan
- Prior art keywords
- tire
- flame
- rubber
- retardant
- fire
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 229920001971 elastomer Polymers 0.000 claims abstract description 41
- 239000005060 rubber Substances 0.000 claims abstract description 41
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 30
- 239000003063 flame retardant Substances 0.000 claims description 30
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 abstract 1
- 229920005549 butyl rubber Polymers 0.000 abstract 1
- 229910052731 fluorine Inorganic materials 0.000 abstract 1
- 239000011737 fluorine Substances 0.000 abstract 1
- 150000004820 halides Chemical class 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 5
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920001084 poly(chloroprene) Polymers 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 229920005555 halobutyl Polymers 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- OUBMGJOQLXMSNT-UHFFFAOYSA-N N-isopropyl-N'-phenyl-p-phenylenediamine Chemical group C1=CC(NC(C)C)=CC=C1NC1=CC=CC=C1 OUBMGJOQLXMSNT-UHFFFAOYSA-N 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229920003244 diene elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 229920002681 hypalon Polymers 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 235000014692 zinc oxide Nutrition 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、車両火災等の防止が可能な難燃性タイヤに関
する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a flame-retardant tire that can prevent vehicle fires and the like.
従来、空気入りタイヤを構成するゴムは、可燃性であり
、電気火花や火災等により容易に引火して車両火災を引
き起こす原因になるといわれている。特にモルレール等
の新交通システムに使用されるタイヤの場合は、タイヤ
の装着箇所が電気火花を発生する電動モーターの集電装
置近傍に位置するため常に火災の危険にさらされており
、このような火災を生じないタイヤの提供について強い
要請がなされている。Conventionally, the rubber constituting pneumatic tires is flammable and is said to be easily ignited by electrical sparks, fire, etc., causing a vehicle fire. In particular, tires used in new transportation systems such as mole rail are always exposed to the risk of fire, as the mounting point of the tire is located near the current collector of the electric motor that generates electrical sparks. There is a strong demand for the provision of tires that do not cause fire.
タイヤを難燃性にするためには、タイヤを形成するゴム
として難燃性ゴムまたは難燃性ゴム組成物（以下、難燃
性ゴムという）を使用してタイヤを形成することが考え
られる。しかし、この難燃性ゴムは、一般に非常に高価
であり、屈曲特性が悪く、しかも発熱し易いのが普通で
あり、タイヤの実用性能が満足されなくなるため、タイ
ヤ構成材料としては使用することができなかった。そこ
で従来は、その可燃性は全く考慮することなく （無視
し）、タイヤ性能のみを考慮してゴムが選定、使用され
てきたというのが現状である。In order to make a tire flame retardant, it is conceivable to form the tire using a flame retardant rubber or a flame retardant rubber composition (hereinafter referred to as flame retardant rubber) as the rubber forming the tire. However, this flame-retardant rubber is generally very expensive, has poor flexibility characteristics, and generates heat easily, making it unsatisfactory for the practical performance of tires, so it cannot be used as a tire constituent material. could not. Therefore, in the past, rubber has been selected and used with only tire performance in mind, without considering (ignoring) its flammability.
本発明の目的は、前記タイヤの火災による延焼を防止、
抑制する難燃性タイヤを提供することである。The purpose of the present invention is to prevent the spread of fire caused by a fire in the tire;
It is an object of the present invention to provide a flame retardant tire that suppresses flames.
本発明は、少なくとも一方のタイヤサイドウオール部の
ゴム露出面に厚さが０．３〜３．０ｍｍの１１燃性ゴム
層を形成することを特徴とする特図は、本発明タイヤの
１例を示す半断面図である。図に示す通り、本発明はタ
イヤのトレッド１やカーカス層２などを構成するゴムを
全て難燃化したり、あるいはタイヤ全体を難燃性ゴムで
被覆するのではなくて、タイヤのサイドウオール部３の
外表面に難燃性ゴムからなる厚さが０．３〜３．０ｍｍ
の層４を形成することによりタイヤに難燃性を付与した
ものである。The present invention is characterized in that a 11 flammable rubber layer with a thickness of 0.3 to 3.0 mm is formed on the exposed rubber surface of at least one sidewall portion of the tire.The special feature is an example of the tire of the present invention. FIG. As shown in the figure, the present invention does not make all of the rubber constituting the tread 1, carcass layer 2, etc. of the tire flame retardant, or coat the entire tire with flame retardant rubber. The outer surface is made of flame retardant rubber and has a thickness of 0.3 to 3.0 mm.
By forming the layer 4, flame retardancy is imparted to the tire.
なお、５はベルト層、６はビードワイヤである。Note that 5 is a belt layer and 6 is a bead wire.
ここで難燃性ゴムは少なくとも一方のサイドウオール部
、たとえば火災による引火を最も生じ易いサイドウオー
ル、すなわち車両に装着した場合に車両の外側に位置す
る側にのみ配置するだけでもよい。Here, the flame-retardant rubber may be disposed only on at least one sidewall portion, for example, the sidewall that is most likely to cause ignition due to a fire, that is, the side that is located on the outside of the vehicle when mounted on the vehicle.
しかしながら、このサイドウオール部を被覆する難燃性
ゴム層の厚さは、０．３〜３．０ｍｍの範囲であること
が必要であり、この厚さが０．３ｍｍよりも薄くなると
、火炎によって内部の可燃性のサイドウオールゴムが引
火するのを防止できず、タイヤそのものの難燃性を確保
することができなくなるし、また３、０ｍｍよりも厚く
してもタイヤの難燃性に対する効果は変わらないばかり
か、この難燃性ゴム層の耐屈曲性が低下し、また、変形
により発熱、疲労し易くなり、この難燃性ゴム層の火災
防止効果を失わせしめるクランクを発生させることにな
り、また難燃性ゴムは高価であるため、タイヤがコスト
高になるので好ましくない。However, the thickness of the flame-retardant rubber layer covering this sidewall part needs to be in the range of 0.3 to 3.0 mm, and if this thickness becomes thinner than 0.3 mm, it will be damaged by flames. It will not be possible to prevent the internal flammable sidewall rubber from catching fire, making it impossible to ensure the flame retardancy of the tire itself, and even if it is thicker than 3.0 mm, it will have no effect on the flame retardance of the tire. Not only does this not change, but the bending resistance of this flame-retardant rubber layer decreases, and deformation causes heat generation and fatigue, resulting in the occurrence of cranks that cause the fire-preventing effect of this flame-retardant rubber layer to be lost. Also, since flame-retardant rubber is expensive, it is not preferable because it increases the cost of the tire.
この難燃性ゴム層を形成する難燃性ゴムとしては、たと
えばフッ素ゴム、ハロゲン化ブチルゴム、ヒドリンゴム
、クロロブレンゴム、クロルスルホン化ポリエチレン、
ニトリルゴム等を例示することができるが、好ましくは
タイヤのサイドウオールとして優れた物性を有する、Ｓ
ＢＲ，ＢＲまたはＮＲ系ゴムに対する一体性（接合性）
等を考慮すると、クロロプレンゴム、ハロゲン化ブチル
ゴム単独またはジエン形ゴムとブレンドしたものがよい
。さらに好ましくは上記原料ゴム１００ ！ｉｉｔ部に
対して塩素化パラフィンを６０重量部以下、三酸化アン
チモンを３０重量部以下を併用し、配合することが好ま
しい。Examples of the flame-retardant rubber forming this flame-retardant rubber layer include fluororubber, halogenated butyl rubber, hydrin rubber, chloroprene rubber, chlorosulfonated polyethylene,
Examples include nitrile rubber, but preferably S, which has excellent physical properties as a tire sidewall.
Integrity (bondability) to BR, BR or NR rubber
Considering the above, it is preferable to use chloroprene rubber, halogenated butyl rubber alone or blended with diene rubber. More preferably, the above raw material rubber 100! It is preferable to use and blend together 60 parts by weight or less of chlorinated paraffin and 30 parts by weight or less of antimony trioxide based on part iit.
塩素化パラフィンの配合量が６０重量部を超えると耐ク
ラツク性が劣ったものになるし、同様に三酸化アンチモ
ンの配合量が３０重量部を超えても耐クラツク性が低下
するので好ましくない。If the amount of chlorinated paraffin added exceeds 60 parts by weight, the crack resistance will be poor, and if the amount of antimony trioxide added exceeds 30 parts by weight, the crack resistance will decrease, which is not preferable.
また、上記タイヤサイドウオール部に難燃性ゴム層を形
成する手段も特に限定されるものではないが、たとえば
タイヤ成形時に前記難燃性ゴムからなる未加硫ゴムシー
トを対応するサイドウオール部に貼り合わせて、タイヤ
°の成形、加硫と同時に前記難燃性ゴム層を形成する方
法あるいはタイヤ成形後に難燃性ゴムを対応するサイド
ウオール部に塗布し、硬化させる方法等がある。Further, the means for forming the flame-retardant rubber layer on the tire sidewall portion is not particularly limited, but for example, during tire molding, an unvulcanized rubber sheet made of the flame-retardant rubber is applied to the corresponding sidewall portion. There is a method in which the flame-retardant rubber layer is formed simultaneously with the tire molding and vulcanization by laminating them together, or a method in which the flame-retardant rubber is applied to the corresponding sidewall portion and cured after the tire is molded.
以下、実施例によって本発明の効果をより具体的に説明
する。EXAMPLES Hereinafter, the effects of the present invention will be explained in more detail with reference to Examples.
なお、タイヤの難燃性および耐クラツク性は、次の測定
法により評価した。Incidentally, the flame retardancy and crack resistance of the tires were evaluated by the following measuring method.
タイヤの′″燃燃性西面
法イヤを４５″の角度に傾け、タイヤサイドウオール部
下方２５ｍｍの位置に、燃料としてエチルアルコール０
．５ｃｃを入れた容器を置き、燃料に着火し、燃料が燃
え尽きるまで放置し、タイヤへの引火状況を調査する。Tilt the tire's ``flammable west facing ear'' at an angle of 45'', and add 0 ethyl alcohol as fuel at a position 25 mm below the tire sidewall.
．． Place a container containing 5cc, ignite the fuel, leave it until the fuel burns out, and investigate whether the tire is ignited.
耐クラツク性
タイヤ空気圧を規定の８０χとし、規定荷重を加えて速
度２０Ｋｍ／ｈｒにて４８０時間走行する。Crack resistance Tire air pressure was set to the specified 80χ, the specified load was applied, and the vehicle was run for 480 hours at a speed of 20 km/hr.
実施例、従来例
表１に示す配合組成の難燃性ゴムをバンバリー型ミキサ
ーで混合し、次いでオーブンロールを用いて硫黄、加硫
促進剤、亜鉛華を添加、混合した。得られた難燃性ゴム
組成物から厚さが約１．０ｍｍのゴムシートを作成した
。Examples and Conventional Examples Flame-retardant rubbers having the composition shown in Table 1 were mixed in a Banbury type mixer, and then sulfur, a vulcanization accelerator, and zinc white were added and mixed using an oven roll. A rubber sheet with a thickness of about 1.0 mm was prepared from the obtained flame-retardant rubber composition.
図に示したタイヤの外側サイドウオール部に前記組成の
難燃性ゴムシート（未加硫）を貼り合わせてた後加硫し
、タイヤサイズが１３／８０Ｒ２０１８ＰＲのタイヤ（
本発明タイヤ）を作成した。A flame-retardant rubber sheet (unvulcanized) having the above composition was attached to the outer sidewall of the tire shown in the figure, and then vulcanized.
A tire of the present invention) was prepared.
比較のため、上記難燃性ゴム層を形成していない、同一
サイズのタイヤ（従来タイヤ）を作成した。For comparison, a tire (conventional tire) of the same size was created without forming the flame-retardant rubber layer.
これら２種のタイヤの難燃性および耐クラツク性を評価
し、表２に示す結果を得た。The flame retardancy and crack resistance of these two types of tires were evaluated, and the results shown in Table 2 were obtained.
本発明タイヤと従来タイヤとを対比すると、タイヤのサ
イドウオール部に難燃性ゴム層を形成した本発明タイヤ
は、良好な火災防止機能を有するのに対して、従来タイ
ヤはなんら火災防止機能を有していない。また、本発明
タイヤは十分な走行性能を有していた。Comparing the tire of the present invention with the conventional tire, the tire of the present invention with a flame-retardant rubber layer formed on the sidewall of the tire has a good fire prevention function, whereas the conventional tire has no fire prevention function. I don't have it. Furthermore, the tire of the present invention had sufficient running performance.
（以下、余白）
表１
上表中、クロロプレンゴムは電気化学興行側型“デンカ
クロスプレン５−４０”、老化防止剤はＮ−イソプロピ
ル−Ｎ′−フェニル−ｐ−フェニレンジアミン、加硫促
進剤はＮ−オキシ−ジエチレンベンゾチアジル−２−ス
ルフェンアミドである。(The following is a blank space) Table 1 In the above table, chloroprene rubber is electrochemical side type "Denka Crossprene 5-40", anti-aging agent is N-isopropyl-N'-phenyl-p-phenylenediamine, and vulcanization accelerator. is N-oxy-diethylenebenzothiazyl-2-sulfenamide.
表２
〔発明の効果〕
本発明によれば、タイヤ性能を実質的に全く損なうこと
なしに、有効な難燃性を付与し、タイヤに火災防止機能
を与えることができるので、バスタイヤや新交通システ
ムに使用されるタイヤ等火災防止機能を強く要請されて
いるタイヤとして極めて有用である。Table 2 [Effects of the Invention] According to the present invention, it is possible to impart effective flame retardancy and provide a fire prevention function to tires without substantially impairing tire performance. It is extremely useful as a tire that is strongly required to have a fire prevention function, such as tires used in transportation systems.
図は、本発明の難燃性タイヤの１例を示す半断面図であ
る。
１・・・トレンド、３・・・サイドウオール部、４・・
・難燃ゴム層。
代理人 弁理士 小 川 信 −The figure is a half-sectional view showing an example of the flame-retardant tire of the present invention. 1... Trend, 3... Sidewall section, 4...
・Flame retardant rubber layer. Agent Patent Attorney Nobuo Ogawa −
Claims (1)
に厚さが０．３〜３．０ｍｍの難燃性ゴム層を形成した
難燃性タイヤ。A flame-retardant tire comprising a flame-retardant rubber layer having a thickness of 0.3 to 3.0 mm formed on the exposed rubber surface of at least one sidewall portion of the tire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63100142A JPH01273703A (en) | 1988-04-25 | 1988-04-25 | Flame resisting tyre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63100142A JPH01273703A (en) | 1988-04-25 | 1988-04-25 | Flame resisting tyre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01273703A true JPH01273703A (en) | 1989-11-01 |
Family
ID=14266062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63100142A Pending JPH01273703A (en) | 1988-04-25 | 1988-04-25 | Flame resisting tyre |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01273703A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5341862A (en) * | 1991-11-14 | 1994-08-30 | Bridgestone Corporation | Flame-retardant rubber tires |
| WO2007044075A3 (en) * | 2005-04-28 | 2007-08-16 | Thomas S Ohnstad | Dynamic surface-structure fire suppression |
| US7614347B2 (en) | 2005-10-13 | 2009-11-10 | Ohnstad Thomas S | Solid-fuel-combustion fire-insulation interface with adjacent container-wall |
| WO2009153666A1 (en) * | 2008-06-19 | 2009-12-23 | Hutchinson Industries, Inc. | A protector shield for a sidewall of a motor vehicle tire, and a wheel assembly for such a vehicle incorporating it |
| US7678453B2 (en) | 2005-10-05 | 2010-03-16 | High Impact Technology, Llc | Multi-function surface-coating fire and fuel-leakage inhibition |
| CN104311909A (en) * | 2014-11-20 | 2015-01-28 | 三角轮胎股份有限公司 | Fire-resistant and flame-retardant tire rubber composite |
-
1988
- 1988-04-25 JP JP63100142A patent/JPH01273703A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5341862A (en) * | 1991-11-14 | 1994-08-30 | Bridgestone Corporation | Flame-retardant rubber tires |
| WO2007044075A3 (en) * | 2005-04-28 | 2007-08-16 | Thomas S Ohnstad | Dynamic surface-structure fire suppression |
| US7678453B2 (en) | 2005-10-05 | 2010-03-16 | High Impact Technology, Llc | Multi-function surface-coating fire and fuel-leakage inhibition |
| US7614347B2 (en) | 2005-10-13 | 2009-11-10 | Ohnstad Thomas S | Solid-fuel-combustion fire-insulation interface with adjacent container-wall |
| WO2009153666A1 (en) * | 2008-06-19 | 2009-12-23 | Hutchinson Industries, Inc. | A protector shield for a sidewall of a motor vehicle tire, and a wheel assembly for such a vehicle incorporating it |
| US9895927B2 (en) | 2008-06-19 | 2018-02-20 | Hutchinson Industries, Inc. | Protector shield for a sidewall of a motor vehicle tire, and a wheel assembly for such a vehicle incorporating it |
| CN104311909A (en) * | 2014-11-20 | 2015-01-28 | 三角轮胎股份有限公司 | Fire-resistant and flame-retardant tire rubber composite |
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