JPH0939513A - Pneumatic radial tire - Google Patents
Pneumatic radial tireInfo
- Publication number
- JPH0939513A JPH0939513A JP7190850A JP19085095A JPH0939513A JP H0939513 A JPH0939513 A JP H0939513A JP 7190850 A JP7190850 A JP 7190850A JP 19085095 A JP19085095 A JP 19085095A JP H0939513 A JPH0939513 A JP H0939513A
- Authority
- JP
- Japan
- Prior art keywords
- pneumatic radial
- belt
- radial tire
- belt layer
- tire
- 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.)
- Granted
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
- B60C9/26—Folded plies
- B60C9/263—Folded plies further characterised by an endless zigzag configuration in at least one belt ply, i.e. no cut edge being present
-
- 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
- B60C9/26—Folded plies
- B60C9/263—Folded plies further characterised by an endless zigzag configuration in at least one belt ply, i.e. no cut edge being present
- B60C2009/266—Folded plies further characterised by an endless zigzag configuration in at least one belt ply, i.e. no cut edge being present combined with non folded cut-belt plies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、軽量であって高速
耐久性が良好でしかも操縦安定性、乗心地性に優れた空
気入りラジアルタイヤに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pneumatic radial tire which is lightweight, has excellent high-speed durability, and has excellent steering stability and riding comfort.
【０００２】[0002]
【従来の技術】従来、空気入りラジアルタイヤのベルト
部には、その優れた強度および弾性率によりスチールベ
ルト層が使われている。そのスチールベルト層は、スチ
ールコードがタイヤ周方向に対して比較的小さな角度
（10°〜30°）でプライ間のコードが互いに交差し、ベ
ルト層の幅方向両側端に切断破面のある２層からなる構
造であった。しかし、スチールベルト層は比重が大きい
故にタイヤ重量が大となり、さらには、その切断破面に
応力が集中してゴム層との間にセパレーションが生じ易
く、高速耐久性が劣るようになるといった欠点があっ
た。2. Description of the Related Art Conventionally, a steel belt layer has been used for a belt portion of a pneumatic radial tire because of its excellent strength and elastic modulus. In the steel belt layer, the steel cords have cords between the plies intersecting each other at a relatively small angle (10 ° to 30 °) with respect to the tire circumferential direction, and there are cut fracture surfaces at both widthwise ends of the belt layer. The structure consisted of layers. However, since the steel belt layer has a large specific gravity, the weight of the tire becomes large, and further, stress concentrates on the cut fracture surface and separation easily occurs between the steel belt layer and the rubber layer, resulting in poor high-speed durability. was there.
【０００３】[0003]
【発明が解決しようとする課題】本発明の目的は、軽量
であって高速耐久性が良好であり、しかも操縦安定性、
乗心地性に優れた空気入りラジアルタイヤを提供するこ
とにある。SUMMARY OF THE INVENTION The object of the present invention is that it is lightweight, has good high-speed durability, and has good steering stability.
It is to provide a pneumatic radial tire having excellent riding comfort.
【０００４】[0004]
【課題を解決するための手段】本発明は、トレッドにお
けるカーカス層の外周にベルト層を配置した空気入りラ
ジアルタイヤにおいて、複数本の補強コードを引き揃え
てマトリックスにより集束したテープをベルト層幅に相
当する幅で連続的に螺旋状に折り返しながら環状の帯状
体に形成し、該帯状体を前記ベルト層として配置したこ
とを特徴とする。The present invention relates to a pneumatic radial tire in which a belt layer is arranged on the outer circumference of a carcass layer in a tread, and a tape obtained by aligning a plurality of reinforcing cords and converging it with a matrix has a belt layer width. It is characterized in that it is formed into an annular belt-like body while being continuously spirally folded back with a corresponding width, and the belt-like body is arranged as the belt layer.
【０００５】このように、カーカス層の外周に環状の帯
状体を配置することによりベルト層を形成したために、
ベルト層の幅方向両側端に切断破面がないので、ベルト
層をスチールコードで構成した場合でも、従来の切断破
面があるスチールベルト層に比して幅方向両側端部の剛
性が高まるから、ベルト材（スチールコード、コートゴ
ム）の使用量を低減でき、軽量化をはかることが可能と
なる。また、ベルト層の幅方向両側端に切断破面がない
のでその両側端でセパレーションが生じることがなく、
高速耐久性が良好となる。さらに、ベルト層の幅方向両
側端でコードが連続しているのでタイヤ横剛性が高まる
から、操縦安定性が向上する。そのうえ、帯状体をカー
カス層の外周にタイヤ周方向に面一に環状に配置してベ
ルト層を形成することにより、ベルト層にタイヤ周方向
において従来タイヤのベルト層のスプライスに起因する
剛性の段差が生じないのでタイヤユニフォーミティーが
向上し、乗心地性が向上する。ここで、面一とは、いわ
ゆるジョイントレスであることをいい、具体的には一端
と他端とが重ね合わせ部（スプライス部）を形成するこ
となく連結していることをいう。As described above, since the belt layer is formed by arranging the annular strip on the outer periphery of the carcass layer,
Since there are no cutting fracture surfaces on both widthwise ends of the belt layer, even when the belt layer is made of steel cord, the rigidity of both widthwise end portions is higher than that of a steel belt layer having a conventional cutting fracture surface. The amount of belt material (steel cord, coat rubber) used can be reduced and the weight can be reduced. Also, since there are no cutting fracture surfaces at both widthwise ends of the belt layer, separation does not occur at both ends thereof,
Good high-speed durability. Further, since the cords are continuous at both widthwise ends of the belt layer, the lateral rigidity of the tire is increased, and thus steering stability is improved. In addition, by arranging the belt-like body on the outer periphery of the carcass layer in an annular shape so as to be flush with the tire circumferential direction to form a belt layer, a step in rigidity due to the splice of the belt layer of the conventional tire in the tire circumferential direction in the belt layer. The tire uniformity is improved and riding comfort is improved. Here, "coplanar" means so-called jointless, and specifically means that one end and the other end are connected without forming an overlapping portion (splice portion).
【０００６】[0006]
【発明の実施の形態】図１は、本発明の空気入りラジア
ルタイヤの一例の子午線方向断面説明図である。図１に
おいて、左右一対のビードコア１の廻りにタイヤ内側か
ら外側にカーカス層２の端部が巻き上げられており、ト
レッド３においてはカーカス層２の外周にベルト層４が
タイヤ周方向にタイヤ１周に亘って環状に設けられてい
る。1 is a cross-sectional explanatory view in the meridian direction of an example of a pneumatic radial tire of the present invention. In FIG. 1, the end of the carcass layer 2 is wound up from the inside of the tire to the outside around a pair of left and right bead cores 1. In the tread 3, a belt layer 4 is provided around the outer circumference of the carcass layer 2 in the tire circumferential direction. It is provided in a ring shape.
【０００７】トレッド３の表面、すなわちトレッド面に
はタイヤ周方向に延びる複数の溝５およびタイヤ幅方向
に延びる複数の溝（図示せず）が設けられている。ベル
ト層４は、図２に示す帯状体７をカーカス層２の外側に
タイヤ周方向に面一に環状に配置することにより形成さ
れる。この帯状体７は、例えば、補強コード（有機繊維
コード又はスチールコード）の複数本を、好ましくは５
〜100 本を引き揃えてマトリックスにより集束したテー
プ６を、すなわち互いに平行にマトリックスに埋設して
なるテープ６を、螺旋状（又は糸巻き状）に巻回して筒
状体となし、この筒状体をその長手方向に沿って押しつ
ぶしたものである。On the surface of the tread 3, that is, on the tread surface, a plurality of grooves 5 extending in the tire circumferential direction and a plurality of grooves (not shown) extending in the tire width direction are provided. The belt layer 4 is formed by arranging the belt-shaped body 7 shown in FIG. 2 on the outside of the carcass layer 2 in an annular shape so as to be flush with the tire circumferential direction. The strip 7 is, for example, a plurality of reinforcing cords (organic fiber cords or steel cords), preferably 5 cords.
Approximately 100 tapes are aligned and bundled in a matrix, that is, the tapes 6 embedded in the matrix in parallel to each other are wound spirally (or wound) into a tubular body. Is crushed along the longitudinal direction.
【０００８】有機繊維コードは、例えば、芳香族ポリア
ミド繊維、ポリアリレート繊維、ポリパラフェニレンベ
ンズビスオキサゾール繊維、ポリビニルアルコール繊
維、レーヨン繊維、ポリエチレンテレフタレート繊維、
ポリエチレン2,6-ナフタレート繊維、ナイロン繊維から
選ばれる繊維の１種又は２種以上を撚り合わせた撚り糸
である。また、マトリックスとしては、ゴムに限ること
なくウレタン樹脂などのプラスチックを用いることがで
きる。The organic fiber cords are, for example, aromatic polyamide fibers, polyarylate fibers, polyparaphenylenebenzbisoxazole fibers, polyvinyl alcohol fibers, rayon fibers, polyethylene terephthalate fibers,
A twisted yarn obtained by twisting one or more fibers selected from polyethylene 2,6-naphthalate fibers and nylon fibers. Further, as the matrix, not only rubber but also plastic such as urethane resin can be used.
【０００９】帯状体７をカーカス層２の外側にタイヤ周
方向に面一に環状に配置するには、例えば、帯状体７を
カーカス層２の外側に巻き付け、その長手方向両端を互
いに突き合わせて接合すればよい。隣接する帯状体７同
士は、重ね合わせることなしに互いに突き合わせて配置
するのがよいが、若干の隙間を設けて配置してもよい。
また、この配置に際しては、帯状体７の補強コードのタ
イヤ周方向に対するコード角度を３０°〜４０°、好ま
しくは３５°付近とするのがよい。このような角度とす
ることにより、プライステアが生じるのを抑えることが
できるからである。In order to arrange the belt-shaped body 7 on the outside of the carcass layer 2 so as to be flush with the tire circumferential direction, for example, the belt-shaped body 7 is wound on the outside of the carcass layer 2, and both longitudinal ends of the belt-shaped body 7 are butted against each other and joined. do it. Adjacent strip-shaped bodies 7 are preferably arranged so as to abut each other without overlapping, but they may be arranged with a slight gap.
Further, in this arrangement, the cord angle of the reinforcing cord of the strip 7 with respect to the tire circumferential direction is set to 30 ° to 40 °, preferably about 35 °. This is because such an angle can suppress the occurrence of plysteer.
【００１０】図３に本発明の空気入りラジアルタイヤの
別例を示す。図３では、ベルト層４の内部に（すなわち
帯状体７の内部に）タイヤ周方向に沿って環状に芯材８
が挿入されている。このベルト層４は、図４に示すよう
に、長手方向に沿って内部に芯材８を配置した帯状体７
から形成される。内部に芯材８を配置することにより、
ベルト層４の剛性をいっそう高めることが可能となる。FIG. 3 shows another example of the pneumatic radial tire of the present invention. In FIG. 3, the core material 8 is annularly formed inside the belt layer 4 (that is, inside the belt-shaped body 7) along the tire circumferential direction.
Is inserted. As shown in FIG. 4, the belt layer 4 has a strip-shaped body 7 in which a core material 8 is arranged inside along the longitudinal direction.
Formed from. By arranging the core material 8 inside,
It is possible to further increase the rigidity of the belt layer 4.
【００１１】この芯材８としては、芳香族ポリアミド繊
維コード（アラミドコード）入りゴムシート、スチール
コード入りゴムシート、ゴムシート、プラスチックシー
トなどを用いることができる。本発明においては、テー
プ６の幅、テープ６のタイヤ周方向に対する角度等はベ
ルト層の外径、ベルト層の幅により一義的にきまってし
まう。この関係式を下記に示す。As the core material 8, a rubber sheet containing an aromatic polyamide fiber cord (aramid cord), a rubber sheet containing a steel cord, a rubber sheet, a plastic sheet or the like can be used. In the present invention, the width of the tape 6, the angle of the tape 6 with respect to the tire circumferential direction, etc. are uniquely determined depending on the outer diameter of the belt layer and the width of the belt layer. This relational expression is shown below.
【００１２】ベルト層の半径をｒとすると外周長Ｌは、
Ｌ＝２πｒとなる。外周長ＬをＮ分割すると１分割当り
のスパン長ｍは次のようになる。 ｍ＝２πｒ／Ｎ テープ６をタイヤ１周巻き付けるとまた同じ位置に戻っ
てくるので、これを図６に示すようにテープ周幅ｄだけ
ずらすようにして巻き付けて行く。したがって Ｌ＝（Ｎ−１）ｍ＋（ｍ±ｄ） ∴ （Ｌ±ｄ）／Ｎ ＝ｍ ・・・・・・・ 次に、ベルト層幅ＷB とテープ６のタイヤ周方向に対す
る傾斜角度θ、スパン長ｍとの関係についてみると、 tanθ＝ＷB ／ｍ/2 より ｍ＝２ＷB ／tanθ ・・・・・・・・ また、スパン長ｍはテープ周幅ｄの整数倍であるから、 ｍ＝ｎｄ ・・・・・・・ 式を式に代入すると、 （Ｌ±ｄ）／Ｎ ＝ｍ＝ｎｄ ∴ Ｌ＝ｎＮｄ−（±ｄ） ・・・・・・・ ここで、ｎ、Ｎは整数である。テープ周幅ｄは、ｄ＝Ｗ
T ／sin θである（Ｗ T はテープ６の幅）。When the radius of the belt layer is r, the outer peripheral length L is
L = 2πr. If the outer peripheral length L is divided into N,
The span length m of is as follows. m = 2πr / N When the tape 6 is wrapped around the tire once, it returns to the same position.
As shown in FIG. 6, the tape circumference d
Wind it in a staggered manner. Therefore, L = (N-1) m + (m ± d) ∴ (L ± d) / N = m ..... Next, the belt layer width WBAnd tape 6 in the tire circumferential direction
The relationship between the tilt angle θ and the span length m is tan θ = WBFrom / m / 2, m = 2WB/ Tanθ ········ In addition, since the span length m is an integer multiple of the tape peripheral width d, m = nd ······ N = m = nd∴L = nNd- (± d) ... Here, n and N are integers. Tape peripheral width d is d = W
T/ Sin θ (W TIs the width of tape 6).
【００１３】[0013]
【実施例】 表１に示す内容およびベルト構造の本発明タイヤ１
〜３、対比タイヤ１、従来タイヤ１につき、下記条件で
下記によりベルト部重量、高速耐久性、乗心地性（突起
乗り越し試験）、操縦安定性を評価した。この結果を表
１に示す。なお、従来タイヤ１のベルト層は、プライ間
でコードが互いに交差したコード角度（ベルトアング
ル）２５°の２枚のスチールベルト層からなる。対比タ
イヤ１のベルト層は、内側のスチールベルト層と外側の
アラミドベルト層の２枚からなり、外側のアラミドベル
ト層は幅方向両端部が外方向に折り曲げられて折り返さ
れたフォールデッド構造をしている。本発明タイヤ１〜
３のベルト層は、下記のようにしてなる。EXAMPLES Tire 1 of the present invention having the contents and belt structure shown in Table 1
.About.3, Comparative tire 1 and Conventional tire 1 were evaluated for belt weight, high speed durability, riding comfort (protrusion riding test), and steering stability under the following conditions. Table 1 shows the results. The belt layer of the conventional tire 1 is composed of two steel belt layers each having a cord angle (belt angle) of 25 ° in which cords intersect with each other between plies. The belt layer of the comparative tire 1 is composed of two sheets, an inner steel belt layer and an outer aramid belt layer, and the outer aramid belt layer has a folded structure in which both widthwise end portions are folded outward. ing. The tires 1 to 1 of the present invention
The belt layer of No. 3 is formed as follows.
【００１４】本発明タイヤ１；２０本のスチールコード
を互いに平行にマトリックスゴムに埋設してなる幅２５
ｍｍのテープを糸巻き状に巻回して筒状体となし、この
筒状体をその長手方向に沿って押しつぶして帯状体と
し、この帯状体をカーカス層の外側にタイヤ周方向に面
一に環状に配置して形成。Tire 1 of the present invention; width 25 formed by embedding 20 steel cords in parallel in matrix rubber
mm of tape is wound into a tubular shape to form a tubular body, and the tubular body is crushed along its longitudinal direction to form a belt-shaped body, and the belt-shaped body is annularly flush with the carcass layer in the tire circumferential direction. Placed and formed.
【００１５】本発明タイヤ２；２５本のアラミドコード
を互いに平行にマトリックスゴムに埋設してなる幅２５
ｍｍのテープを糸巻き状に巻回して筒状体となし、この
筒状体をその長手方向に沿って押しつぶして帯状体と
し、この帯状体をカーカス層の外側にタイヤ周方向に面
一に環状に配置して形成。本発明タイヤ３；２５本のＥ
ＨＭポリエステルコードを互いに平行にマトリックスゴ
ムに埋設してなる幅２５ｍｍのテープを糸巻き状に巻回
して筒状体となし、この筒状体をその長手方向に沿って
押しつぶして帯状体とし、この帯状体をカーカス層の外
側にタイヤ周方向に面一に環状に配置して形成。Tire 2 of the present invention; width 25 formed by embedding 25 aramid cords in matrix rubber in parallel with each other
mm of tape is wound into a tubular shape to form a tubular body, and the tubular body is crushed along its longitudinal direction to form a belt-shaped body, and the belt-shaped body is annularly flush with the carcass layer in the tire circumferential direction. Placed and formed. Invention tire 3; 25 Es
A 25 mm wide tape formed by burying HM polyester cords in parallel with each other in a matrix rubber is wound into a spool to form a tubular body, and the tubular body is crushed along its longitudinal direction to form a strip. The body is formed on the outside of the carcass layer in a ring shape so as to be flush with the tire circumferential direction.
【００１６】条件 空気圧；1.9kg/cm2 、リム；14×51/2JJ、荷重；500kg タイヤサイズ；195/70 R14 タイヤ外形 655mm、ベルト層の幅ｄ＝140mm 、ベルト層
の半径ｒ＝315mmベルト部重量 ：タイヤを成形加硫する前に予めタイヤベ
ルト層として使用するのに必要な量のベルト部材の重量
を測定した。従来タイヤ１を100 とする指数で表わす。 Conditions Air pressure: 1.9 kg / cm 2 , rim: 14 × 51 / 2JJ, load: 500 kg Tire size: 195/70 R14 Tire outline 655 mm, belt layer width d = 140 mm, belt layer radius r = 315 mm Belt Part weight : Before molding and vulcanizing the tire, the weight of the belt member required to be used as a tire belt layer was measured in advance. It is represented by an index with the conventional tire 1 being 100.
【００１７】高速耐久性：ドラム径1707mmでJATMA 高速
耐久性試験終了後、10km/hr 毎加速してタイヤが破壊す
るまで試験を続行した。この結果を従来タイヤ１を100
とする指数で示す。数値が大きい方がよい。乗心地性 ：乗心地性能の代用特性としての室内ドラム突
起乗り越し試験を行った。この場合、ドラム径2500mmで
ドラム表面に半径10mmの突起を設け、時速40km/hr で走
行したときの反力をロードセルで検出することによっ
た。この結果を従来タイヤ１を100 とする指数で示す。
数値が大きい方がよい。 High-speed durability : After the JATMA high-speed durability test with a drum diameter of 1707 mm, the test was continued by accelerating every 10 km / hr until the tire broke. This result is 100 for Conventional Tire 1
It shows with the index. Larger numbers are better. Riding comfort : An indoor drum projection ride over test was performed as a substitute characteristic of riding comfort performance. In this case, a projection with a diameter of 2500 mm and a radius of 10 mm was provided on the surface of the drum, and the load cell was used to detect the reaction force when traveling at a speed of 40 km / hr. The result is shown by an index with the conventional tire 1 being 100.
Larger numbers are better.
【００１８】操縦安定性：実車操縦安定性能フィーリン
グテストを行った。この場合、国産2.5 リットルクラス
の車にタイヤを装着して、車を６回幅方向に移動させる
ことによりテストパネラーが操舵フィーリング評価し
た。この結果を従来タイヤ１を100 とする指数で示す。
数値が大きい方がよい。 Steering stability : An actual vehicle steering stability performance feeling test was conducted. In this case, the tires were attached to a domestic 2.5-liter class car, and the test panelists evaluated the steering feeling by moving the car 6 times in the width direction. The result is shown by an index with the conventional tire 1 being 100.
Larger numbers are better.
【００１９】[0019]
【表１】 [Table 1]
【００２０】表１から明らかなように、本発明タイヤ１
〜３は重量が低減し、かつ高速耐久性、乗心地性、操縦
安定性のいずれにおいても優れていることが判る。 表２に示す内容およびベルト構造の本発明タイヤ４
〜６、対比タイヤ２、従来タイヤ２につき、前記にお
けると同様にしてベルト部重量、高速耐久性、乗心地性
（突起乗り越し試験）、操縦安定性を評価した。この結
果を表２に示す。As is clear from Table 1, the tire 1 of the present invention
It can be seen that Nos. 3 to 3 have a reduced weight and are excellent in high-speed durability, riding comfort, and steering stability. The tire 4 of the present invention having the contents and belt structure shown in Table 2
.About.6, Comparative tire 2, and Conventional tire 2 were evaluated for belt weight, high-speed durability, riding comfort (protrusion riding test), and steering stability in the same manner as described above. The results are shown in Table 2.
【００２１】なお、従来タイヤ２は従来タイヤ１のベル
ト層の外側の全面をナイロンコードからなるカバー層で
覆ったものである。対比タイヤ２は対比タイヤ１と同じ
である。本発明タイヤ４は本発明タイヤ１のベルト層の
内部に芯材８として幅１５０ｍｍ、厚さ１ｍｍのゴムシ
ートの１枚を図５に示されるように長手方向一端部ａと
他端部ｂとを互いに突き合わせて配置したものである。
本発明タイヤ５は本発明タイヤ２のベルト層の内部に芯
材として幅１５０ｍｍ、厚さ１．５ｍｍのアラミドコー
ド入りゴムシートの１枚を配置したものである。本発明
タイヤ６は本発明タイヤ３のベルト層の内部に芯材とし
てスチールコードからなる幅１５０ｍｍ、厚さ１．１ｍ
ｍのスチールコード入りゴムシートの１枚を配置したも
のである。The conventional tire 2 is obtained by covering the entire outer surface of the belt layer of the conventional tire 1 with a cover layer made of nylon cord. The comparative tire 2 is the same as the comparative tire 1. In the tire 4 of the present invention, one rubber sheet having a width of 150 mm and a thickness of 1 mm is used as the core material 8 inside the belt layer of the tire 1 of the present invention, as shown in FIG. Are arranged to face each other.
The tire 5 of the present invention comprises one rubber sheet having a width of 150 mm and a thickness of 1.5 mm and containing an aramid cord as a core material arranged inside the belt layer of the tire 2 of the present invention. The tire 6 of the present invention has a width of 150 mm and a thickness of 1.1 m made of steel cord as a core material inside the belt layer of the tire 3 of the present invention.
One of the rubber sheets with a steel cord of m is arranged.
【００２２】[0022]
【表２】 表２から明らかなように、本発明タイヤ４〜６は重量が
低減し、かつ高速耐久性、乗心地性、操縦安定性のいず
れにおいても優れていることが判る。[Table 2] As is apparent from Table 2, the tires 4 to 6 of the present invention have a reduced weight and are excellent in high-speed durability, riding comfort, and steering stability.
【００２３】[0023]
【発明の効果】以上説明したように本発明によれば、ト
レッドにおけるカーカス層の外周にベルト層を配置した
空気入りラジアルタイヤにおいて、複数本の補強コード
を引き揃えてマトリックスにより集束したテープをベル
ト層幅に相当する幅で連続的に螺旋状に折り返しながら
帯状体に形成し、該帯状体を前記ベルト層として配置し
たために、軽量であって、かつ高速耐久性が良好でしか
も操縦安定性、乗心地性に優れた空気入りラジアルタイ
ヤを提供することが可能となる。As described above, according to the present invention, in a pneumatic radial tire in which a belt layer is arranged on the outer periphery of a carcass layer in a tread, a tape in which a plurality of reinforcing cords are aligned and bundled by a matrix is used as a belt. Formed into a belt-shaped body while being continuously folded back in a spiral shape with a width corresponding to the layer width, and since the belt-shaped body is arranged as the belt layer, it is lightweight, has good high-speed durability, and has good steering stability. It is possible to provide a pneumatic radial tire having excellent riding comfort.
【図１】本発明の空気入りラジアルタイヤの一例の子午
線方向断面説明図である。FIG. 1 is a cross-sectional explanatory view in the meridian direction of an example of a pneumatic radial tire of the present invention.
【図２】本発明においてベルト層を形成する帯状体の一
例を示す斜視説明図である。FIG. 2 is a perspective explanatory view showing an example of a belt-shaped body forming a belt layer in the present invention.
【図３】本発明の空気入りラジアルタイヤの他例の子午
線方向断面説明図である。FIG. 3 is a cross-sectional explanatory view in the meridian direction of another example of the pneumatic radial tire of the present invention.
【図４】本発明においてベルト層を形成する帯状体の他
例を示す斜視説明図である。FIG. 4 is a perspective explanatory view showing another example of a belt-shaped body forming a belt layer in the present invention.
【図５】本発明においてベルト層の内部に芯材として配
置されたゴムシートの突き合わせ部を示す斜視説明図で
ある。FIG. 5 is a perspective explanatory view showing a butted portion of a rubber sheet arranged as a core material inside the belt layer in the present invention.
【図６】本発明においてテープをベルト層幅に相当する
幅で連続的に螺旋状に折り返しながら環状の帯状体に形
成する様子を示す平面視説明図である。FIG. 6 is an explanatory plan view showing a state in which the tape is formed into an annular band while being continuously folded back in a spiral shape with a width corresponding to the belt layer width in the present invention.
１ ビードコア ２ カーカス層 ３ トレッド
４ ベルト層 ６ テープ ７ 帯状体1 bead core 2 carcass layer 3 tread
4 Belt layer 6 Tape 7 Band
Claims (7)
ルト層を配置した空気入りラジアルタイヤにおいて、複
数本の補強コードを引き揃えてマトリックスにより集束
したテープをベルト層幅に相当する幅で連続的に螺旋状
に折り返しながら環状の帯状体に形成し、該帯状体を前
記ベルト層として配置した空気入りラジアルタイヤ。1. In a pneumatic radial tire in which a belt layer is arranged on the outer circumference of a carcass layer in a tread, a tape obtained by aligning a plurality of reinforcing cords and converging by a matrix is continuously spiraled with a width corresponding to the belt layer width. A pneumatic radial tire in which the belt-shaped body is formed into an annular belt-shaped body while being folded back in a circular shape, and the belt-shaped body is arranged as the belt layer.
て芯材を挿入した請求項１記載の空気入りラジアルタイ
ヤ。2. The pneumatic radial tire according to claim 1, wherein a core material is inserted inside the strip along the tire circumferential direction.
コード角度が３０°〜４０°である請求項１又は２記載
の空気入りラジアルタイヤ。3. The pneumatic radial tire according to claim 1, wherein the cord angle of the reinforcing cord with respect to the tire circumferential direction is 30 ° to 40 °.
維、ポリアリレート繊維、ポリパラフェニレンベンズビ
スオキサゾール繊維、ポリビニルアルコール繊維、レー
ヨン繊維、ポリエチレンテレフタレート繊維、ポリエチ
レン2,6-ナフタレート繊維、ナイロン繊維から選ばれた
有機繊維の１種又は２種以上を撚り合わせた撚り糸であ
る請求項１乃至３のいずれか１項に記載の空気入りラジ
アルタイヤ。4. The reinforcing cord is selected from aromatic polyamide fiber, polyarylate fiber, polyparaphenylenebenzbisoxazole fiber, polyvinyl alcohol fiber, rayon fiber, polyethylene terephthalate fiber, polyethylene 2,6-naphthalate fiber and nylon fiber. The pneumatic radial tire according to any one of claims 1 to 3, which is a twisted yarn obtained by twisting one kind or two or more kinds of the produced organic fibers.
請求項１記載の空気入りラジアルタイヤ。5. The pneumatic radial tire according to claim 1, wherein the reinforcing cord is a steel cord.
からなる群から選択される１種である請求項１記載の空
気入りラジアルタイヤ。6. The pneumatic radial tire according to claim 1, wherein the matrix is one selected from the group consisting of rubber and plastic.
シートである請求項２記載の空気入りラジアルタイヤ。7. The pneumatic radial tire according to claim 2, wherein the core material is a rubber sheet or a plastic sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19085095A JP3644728B2 (en) | 1995-07-26 | 1995-07-26 | Pneumatic radial tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19085095A JP3644728B2 (en) | 1995-07-26 | 1995-07-26 | Pneumatic radial tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0939513A true JPH0939513A (en) | 1997-02-10 |
| JP3644728B2 JP3644728B2 (en) | 2005-05-11 |
Family
ID=16264820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19085095A Expired - Fee Related JP3644728B2 (en) | 1995-07-26 | 1995-07-26 | Pneumatic radial tire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3644728B2 (en) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09220908A (en) * | 1996-02-15 | 1997-08-26 | Yokohama Rubber Co Ltd:The | Pneumatic radial tire |
| JPH10217713A (en) * | 1997-02-10 | 1998-08-18 | Yokohama Rubber Co Ltd:The | Pneumatic radial tire for passenger car |
| JPH10226204A (en) * | 1997-02-17 | 1998-08-25 | Yokohama Rubber Co Ltd:The | Pneumatic radial tire |
| JPH11139111A (en) * | 1997-11-12 | 1999-05-25 | Yokohama Rubber Co Ltd:The | Pneumatic radial tire |
| JP2000033806A (en) * | 1998-07-17 | 2000-02-02 | Yokohama Rubber Co Ltd:The | Pneumatic radial tire |
| JP2000108611A (en) * | 1998-10-05 | 2000-04-18 | Yokohama Rubber Co Ltd:The | Pneumatic radial tire |
| JP2000280710A (en) * | 1999-03-31 | 2000-10-10 | Toyo Tire & Rubber Co Ltd | Pneumatic radial tire |
| JP2001199204A (en) * | 1999-12-28 | 2001-07-24 | Goodyear Tire & Rubber Co:The | Continuous folding-back belt and tire having its splice |
| KR20040077029A (en) * | 2003-02-27 | 2004-09-04 | 금호타이어 주식회사 | Pneumatic tire for passenger car |
| JP2006002824A (en) * | 2004-06-16 | 2006-01-05 | Toyo Tire & Rubber Co Ltd | Rubber-made cylindrical body |
| CN105620203A (en) * | 2014-11-26 | 2016-06-01 | 住友橡胶工业株式会社 | Pneumatic tire and manufacture method thereof |
| CN106163829A (en) * | 2014-03-31 | 2016-11-23 | 米其林集团总公司 | The crown reinforcement of aero tyre |
| JPWO2016190152A1 (en) * | 2015-05-25 | 2018-03-15 | 株式会社ブリヂストン | Reinforcing member for tire and tire using the same |
| WO2018230264A1 (en) * | 2017-06-12 | 2018-12-20 | 株式会社ブリヂストン | Reinforcement member and tire using same |
| WO2019116841A1 (en) * | 2017-12-14 | 2019-06-20 | 株式会社ブリヂストン | Tire reinforcement member and tire using same |
| CN110023103A (en) * | 2016-11-30 | 2019-07-16 | 株式会社普利司通 | Rubber-cord composite, reinforcing member for tire, and tire using same |
| CN110770039A (en) * | 2017-06-19 | 2020-02-07 | 株式会社普利司通 | Tyre for vehicle wheels |
| WO2020121731A1 (en) * | 2018-12-12 | 2020-06-18 | 株式会社ブリヂストン | Tire |
| WO2020122159A1 (en) * | 2018-12-13 | 2020-06-18 | 株式会社ブリヂストン | Pneumatic tire |
| JP2021193010A (en) * | 2020-06-08 | 2021-12-23 | 株式会社ブリヂストン | Pneumatic tire |
| US20230241917A1 (en) * | 2020-06-08 | 2023-08-03 | Bridgestone Corporation | Pneumatic tire |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5322205A (en) * | 1976-08-11 | 1978-03-01 | Uniroyal Sa | Pneumatic tire reinforcing belt assembly |
| JPS63232005A (en) * | 1987-03-20 | 1988-09-28 | Natl Tire Kk | Tire for bicycle |
| JPH04173404A (en) * | 1990-11-06 | 1992-06-22 | Sumitomo Rubber Ind Ltd | Pneumatic tire |
| JPH05155201A (en) * | 1991-12-05 | 1993-06-22 | Yokohama Rubber Co Ltd:The | Pneumatic radial tire |
| JPH07315008A (en) * | 1994-05-27 | 1995-12-05 | Fuji Seiko Kk | Breaker belt for pneumatic tire |
-
1995
- 1995-07-26 JP JP19085095A patent/JP3644728B2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5322205A (en) * | 1976-08-11 | 1978-03-01 | Uniroyal Sa | Pneumatic tire reinforcing belt assembly |
| JPS63232005A (en) * | 1987-03-20 | 1988-09-28 | Natl Tire Kk | Tire for bicycle |
| JPH04173404A (en) * | 1990-11-06 | 1992-06-22 | Sumitomo Rubber Ind Ltd | Pneumatic tire |
| JPH05155201A (en) * | 1991-12-05 | 1993-06-22 | Yokohama Rubber Co Ltd:The | Pneumatic radial tire |
| JPH07315008A (en) * | 1994-05-27 | 1995-12-05 | Fuji Seiko Kk | Breaker belt for pneumatic tire |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09220908A (en) * | 1996-02-15 | 1997-08-26 | Yokohama Rubber Co Ltd:The | Pneumatic radial tire |
| JPH10217713A (en) * | 1997-02-10 | 1998-08-18 | Yokohama Rubber Co Ltd:The | Pneumatic radial tire for passenger car |
| JPH10226204A (en) * | 1997-02-17 | 1998-08-25 | Yokohama Rubber Co Ltd:The | Pneumatic radial tire |
| JPH11139111A (en) * | 1997-11-12 | 1999-05-25 | Yokohama Rubber Co Ltd:The | Pneumatic radial tire |
| JP2000033806A (en) * | 1998-07-17 | 2000-02-02 | Yokohama Rubber Co Ltd:The | Pneumatic radial tire |
| JP2000108611A (en) * | 1998-10-05 | 2000-04-18 | Yokohama Rubber Co Ltd:The | Pneumatic radial tire |
| JP2000280710A (en) * | 1999-03-31 | 2000-10-10 | Toyo Tire & Rubber Co Ltd | Pneumatic radial tire |
| JP2001199204A (en) * | 1999-12-28 | 2001-07-24 | Goodyear Tire & Rubber Co:The | Continuous folding-back belt and tire having its splice |
| JP4612179B2 (en) * | 1999-12-28 | 2011-01-12 | ザ・グッドイヤー・タイヤ・アンド・ラバー・カンパニー | Tire with continuous folding belt and splice |
| KR20040077029A (en) * | 2003-02-27 | 2004-09-04 | 금호타이어 주식회사 | Pneumatic tire for passenger car |
| JP2006002824A (en) * | 2004-06-16 | 2006-01-05 | Toyo Tire & Rubber Co Ltd | Rubber-made cylindrical body |
| CN106163829A (en) * | 2014-03-31 | 2016-11-23 | 米其林集团总公司 | The crown reinforcement of aero tyre |
| CN105620203A (en) * | 2014-11-26 | 2016-06-01 | 住友橡胶工业株式会社 | Pneumatic tire and manufacture method thereof |
| JPWO2016190152A1 (en) * | 2015-05-25 | 2018-03-15 | 株式会社ブリヂストン | Reinforcing member for tire and tire using the same |
| CN110023103A (en) * | 2016-11-30 | 2019-07-16 | 株式会社普利司通 | Rubber-cord composite, reinforcing member for tire, and tire using same |
| WO2018230264A1 (en) * | 2017-06-12 | 2018-12-20 | 株式会社ブリヂストン | Reinforcement member and tire using same |
| JP2019001196A (en) * | 2017-06-12 | 2019-01-10 | 株式会社ブリヂストン | Reinforcement member and tire using the same |
| CN110770039A (en) * | 2017-06-19 | 2020-02-07 | 株式会社普利司通 | Tyre for vehicle wheels |
| WO2019116841A1 (en) * | 2017-12-14 | 2019-06-20 | 株式会社ブリヂストン | Tire reinforcement member and tire using same |
| JPWO2019116841A1 (en) * | 2017-12-14 | 2020-12-03 | 株式会社ブリヂストン | Reinforcing members for tires and tires using them |
| WO2020121731A1 (en) * | 2018-12-12 | 2020-06-18 | 株式会社ブリヂストン | Tire |
| JP2020093661A (en) * | 2018-12-12 | 2020-06-18 | 株式会社ブリヂストン | tire |
| WO2020122159A1 (en) * | 2018-12-13 | 2020-06-18 | 株式会社ブリヂストン | Pneumatic tire |
| JPWO2020122159A1 (en) * | 2018-12-13 | 2021-09-27 | 株式会社ブリヂストン | Pneumatic tires |
| JP2021193010A (en) * | 2020-06-08 | 2021-12-23 | 株式会社ブリヂストン | Pneumatic tire |
| US20230241917A1 (en) * | 2020-06-08 | 2023-08-03 | Bridgestone Corporation | Pneumatic tire |
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|---|---|
| JP3644728B2 (en) | 2005-05-11 |
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