JPS5926304A - Tyre reinforcement and radial tyre for car - Google Patents
Tyre reinforcement and radial tyre for carInfo
- Publication number
- JPS5926304A JPS5926304A JP57135483A JP13548382A JPS5926304A JP S5926304 A JPS5926304 A JP S5926304A JP 57135483 A JP57135483 A JP 57135483A JP 13548382 A JP13548382 A JP 13548382A JP S5926304 A JPS5926304 A JP S5926304A
- Authority
- JP
- Japan
- Prior art keywords
- tire
- tyre
- reinforcement
- coil
- tensile modulus
- 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
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
- B60C9/2009—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 comprising plies of different materials
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
Description
【発明の詳細な説明】
この発明はタイヤ補強体およびこのタイヤ補強体を有す
る自動車用ラジアルタイヤに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tire reinforcing body and a radial tire for automobiles having this tire reinforcing body.
タイヤに埋設されるコードの側端部Ｖこおいては、コー
ド側端部における集中応力によってゴムの剥離を生ずる
のを防止するために、タイヤ補強体が使用されている。At the side end V of the cord embedded in the tire, a tire reinforcement is used to prevent the rubber from peeling off due to concentrated stress at the cord side end.
特にタイヤコードとしてスチールコードを使用【−た場
合は、スチールコードの剛性がゴムよりはるかに人きい
ために、スチールコード側端部にタイヤ補強体の必・Ｆ
ＷＦ＋：ｎ大きい。例えば、先に本出願人は、自動車用
ラジアルタイヤの高速耐久性を向上するために、第１図
に示すように、有機繊維コードがタイヤ円周方向に対し
て直角に配列されたカーカス層ｌの中火外周部に、スチ
ールコードがタイヤ円周方向に対して１０〜３０度の角
度で平行に配列されたベア１ ドブライの少なくとも２
枚を相互に反対方向に重合して々るベルト層２が配置さ
れ、上記ベルト層２の両側端部に、円筒コイル状スチー
ルフィラメント３がタイヤ円周方向に配列されたエツジ
ベ／Ｉ／１一層４を重合したラジアルタイヤを提案した
（特願昭５６−１３９１８２号明晧書参照）。In particular, when steel cord is used as a tire cord, the rigidity of steel cord is much higher than that of rubber, so it is necessary to install a tire reinforcement at the end of the steel cord.
WF+: n large. For example, in order to improve the high-speed durability of radial tires for automobiles, the applicant previously proposed a carcass layer in which organic fiber cords are arranged perpendicularly to the circumferential direction of the tire, as shown in FIG. At least 2 steel cords are arranged parallel to the tire circumferential direction at an angle of 10 to 30 degrees on the outer periphery of the tire.
A belt layer 2 is arranged in which sheets are superimposed in opposite directions to each other, and cylindrical coiled steel filaments 3 are arranged in the circumferential direction of the tire at both ends of the belt layer 2. 4 (see Japanese Patent Application No. 139182/1982).
上記提案のラジアルタイヤのエツジベルト層４は、同じ
モジュラスを有する円筒コイル状スチールフィラメント
３をタイヤ幅方向に等間隔に配列したものであるため、
タイヤ加硫成型時に生ずるクイＡ・幅方向における膨張
の差異に十分に対応することができず、従ってベルト層
２やカーカス層１を構成するタイＡ１コードに部分的に
つっばりやたるみが発生し、このようなタイヤを走行さ
せると、タイヤコードとゴムとの界面に大きい歪の断層
を生じ、タイヤコードがコムより剥離してタイヤ故障の
原因となる。The edge belt layer 4 of the radial tire proposed above is made by arranging cylindrical coiled steel filaments 3 having the same modulus at equal intervals in the width direction of the tire;
It is not possible to adequately respond to the difference in expansion in the cross direction of the tie A that occurs during tire vulcanization molding, and as a result, the tie A1 cord that makes up the belt layer 2 and carcass layer 1 partially becomes stiff or sagging. When such tires are run, large strain faults occur at the interface between the tire cord and the rubber, causing the tire cord to separate from the comb and cause tire failure.
この発明は、上記の問題を解決するために、上記エツジ
ベルｌ一層（タイヤ補強体）の引張モジュラスを幅方向
に相対的に変化させたものである。In order to solve the above-mentioned problems, this invention relatively changes the tensile modulus of the Edgebel single layer (tire reinforcing body) in the width direction.
この出願の第１発明に、幅方向における引張モジュラス
が相対的に異なるように円筒コイル状スチールフィラメ
ントヲ配列して埋設したことを特徴とするタイヤ補強体
である。The first invention of this application is a tire reinforcing body characterized in that cylindrical coiled steel filaments are arranged and embedded so that the tensile modulus in the width direction is relatively different.
タイヤ補強体の幅方向における引張モジュラスを４″ｌ
Ｉ″Ａ的に異なるようにするための第１の構造は、円筒
コイル状スチールフィラメントのコイルピッチを相対的
に小さくするか、またはコイル外径を相対的に大きくす
るかして引張モゾユラヌを打１文ｊ的に小さくし、こ力
５らの円筒コイル伏フィラメントを等間隔に配列してト
ツビン〃了ムに埋設したものである。この場合、コイル
ピッチヲ小さくするとともにコイル径を大きくし−Ｃ引
張モシュラヌを相対的に小さくしてもよいことＶよもち
ろんである。The tensile modulus of the tire reinforcement in the width direction is 4″l
The first structure for making the I″A different is to make the coil pitch of the cylindrical coiled steel filament relatively small or to make the coil outer diameter relatively large to increase the tensile modulus. In this case, the coil pitch is made small and the coil diameter is made large, and the coil pitch is made small and the coil diameter is made large. Of course, V may make Moshranu relatively small.
第２の構造は、コイルピッチ、コイル径を同じくする円
筒コイル状フイラメンｌ−を、間隔を相対的に小さく密
に配列して１−ツピングコムに埋設シ、引張モジュラス
をＩＩＩ 、ｔｌ的に小さくＩ−たものである。In the second structure, cylindrical coiled filament l- having the same coil pitch and coil diameter are arranged densely with relatively small intervals and embedded in the l-tuping comb, and the tensile modulus is III and the tl is small I. -It is something that
上記第１および第２の構造において、円筒コイル状スチ
ールフィラメントは、１木に１（Ａ１定されず、同形状
の円筒コイル状ヌチールフイ゛ノメントの２〜４木を１
拵１えて束ねたスチールフィラメント束であってもよい
。また引張モジュラスの変化は、円ｍｌコイル状スチー
ルフィラメント−２１本復に変化させたものでなく、ス
チールフィラメントの数本または数束を一群とし、群旬
に引張モジュラスを順次に変化させてもよい。さらに上
記第１の構造と第２の構造とを組合せてタイヤ補強体の
引張モジュラスを相対的に変化させてもよい。In the above first and second structures, the cylindrical coiled steel filament is arranged in one tree (A1 is not specified, and two to four cylindrical coiled steel filaments of the same shape are arranged in one tree).
It may also be a bundle of steel filaments tied together with a koshirae. In addition, the change in tensile modulus is not the same as changing 21 coiled steel filaments per ml, but it is also possible to make a group of several steel filaments or bundles and sequentially change the tensile modulus in a group. . Further, the first structure and the second structure may be combined to relatively change the tensile modulus of the tire reinforcement.
円筒コイル状ヌチールフィラメントを能率的に製造する
方法は公知であり（特開昭４７−１８６８４号公報泰［
！α）、この公知の方法は、多数個の孔を西己列１〜た
固定板と、該固定板と同数個の孔を配列し、固定板に平
行に配置された可動板とからなる装置を使用し、固定板
の番孔から可動板の番孔に直線状のスチールフィラメン
トを供給しながら、上記固定板の孔に対して可動板の孔
全同心的に回転するように可動板を回転させることによ
って円筒コイル状スチールフイラメン１−に変形加］ニ
するものである。そして上記公知の方法は、固定板の番
孔の直径および可動板の番孔の直径は同して゛あり、か
つ各板の孔は等間隔に配列されたものであって、得られ
た円筒コイル状フィラメントの゛コイルピッチおよびコ
イル径はいずれも同じである。A method for efficiently producing cylindrical coiled Nutille filaments is known (see Japanese Patent Application Laid-open No. 18684/1984) [
! α) This known method consists of a device consisting of a fixed plate having a large number of holes in a row, and a movable plate having the same number of holes as the fixed plate and arranged parallel to the fixed plate. While feeding a straight steel filament from the hole in the fixed plate to the hole in the movable plate, rotate the movable plate so that all the holes in the movable plate rotate concentrically with the holes in the fixed plate. By doing so, the cylindrical coiled steel filament 1- is deformed. In the above-mentioned known method, the diameter of the holes in the fixed plate and the diameter of the holes in the movable plate are the same, and the holes in each plate are arranged at equal intervals, and the resulting cylindrical coil is The coil pitch and coil diameter of the shaped filaments are all the same.
この発明における円筒コイル状スチールフィラメントは
、上記公知の方法を改良して能率的に製造することがで
きる。上記第１の（ＩＩｖ造の円筒コイル状ヌチールフ
イラメン！・を膨油する方法ｔ［２図によって簡単に説
明すると、固定板５は同じ直径の固定孔５ａの多数個が
同じ間隔し、で配列さ）しでおり、該固定板５に′ｌ１
行して配管された可動（Ｊｉ６１ｄ、上記固定板５の固
定孔５ ｎ・・・・・・・・・に対応り。The cylindrical coiled steel filament according to the present invention can be efficiently produced by improving the above-mentioned known method. The above-mentioned first method for inflating a cylindrical coiled nut filament made of IIv structure with oil t [To briefly explain with reference to FIG. 'l1 is arranged on the fixed plate 5.
A movable pipe piped in rows (Ji61d, corresponds to the fixing hole 5n of the fixed plate 5 above).
で同じ間隔て７ ’ｕＪ！１ＩＪｌ孔６ｉ）、６１）・
・・６Ｃ゛が配列されており、かつ（１１１部側の可動
孔６ａの直径に固定孔５ ｎより人きく、可動孔６ｂか
ら可動孔６ｅＶｒｃつれで順次に直径が小さくなり、最
小の可動孔６ｅｆｄ固定孔５ ａ、の直径とほぼ同じに
穿設されている。そして画定板５の各固定孔５ ａ、か
ら、これに文・］応する可動板６の各可動孔６ａ、６１
）・・・・・６ｅに、直線状のスチールワイヤ７ａ、７
ｂ・・・・・・７０を供給しながら可動板６を回転する
と、可動孔６Ｃ〕、・・・・・６ｅは固定孔５Ｆ〕７・
・・・・・・・・に対して同心的に回転される。At the same interval, 7'uJ! 1IJl hole 6i), 61)・
... 6C'' are arranged, and (the diameter of the movable hole 6a on the 111 part side is larger than the fixed hole 5n, the diameter becomes smaller sequentially from the movable hole 6b to the movable hole 6eVrc, and the smallest movable hole 6efd fixing hole 5a is bored to have almost the same diameter as that of fixing hole 5a.Then, from each fixing hole 5a of defining plate 5, each movable hole 6a, 61 of corresponding movable plate 6 is opened.
)...6e, straight steel wires 7a, 7
When the movable plate 6 is rotated while supplying b...70, the movable holes 6C],...6e become the fixed holes 5F]7.
It is rotated concentrically with respect to...
そして直径の大きい可動孔６ａを通ったスチールワイヤ
７ ａ、はコイル径が小さく、直径が順次小さくなる。The steel wire 7a passing through the large-diameter movable hole 6a has a small coil diameter, and the diameter gradually decreases.
可動孔６ｂ・・・・・・６ｅを曲ったスチールワイヤ７
ｂ・−・・・・７ｅは可動孔６ｂ・・・・６ｅの直径に
応じてコイル径が順次に大きくなるように父形加工され
る。Steel wire 7 bent through movable holes 6b...6e
b...7e are machined into a father shape so that the coil diameters become sequentially larger in accordance with the diameters of the movable holes 6b...6e.
なお、円筒コイル状スチールワイヤのコイルピッチを順
次に変化させるには、従来の可動孔６ａ・・・・・・６
ｅの直径が同じ可動板６を使用し、スチールライＡ１の
供給速度を可動孔６ａからｉｊＪ動孔６ｅにつｉｔで順
次小さくしてもよいことは１°分にＪ↓１１解さ力、る
であろう。なおまた、上言己のようにして得られたコイ
ル状スチールワイＡ′に、変形加工後にコイルが伸びる
ためコイル径およびコイルピッチがともに変化される。In addition, in order to sequentially change the coil pitch of the cylindrical coiled steel wire, the conventional movable hole 6a...6
Using the movable plate 6 with the same diameter e, the supply speed of steel lie A1 can be sequentially decreased from the movable hole 6a to the movable hole 6e by J↓11 per 1°. Will. Furthermore, since the coiled steel wire A' obtained as described above is elongated after being deformed, both the coil diameter and the coil pitch are changed.
第３図に、コイルピッチ径およびコイルピッチの異なる
ワイヤの配列状態を模型的に表わしたものである。FIG. 3 schematically shows the arrangement of wires having different coil pitch diameters and coil pitches.
上記のようにして得られたコイルピッチまたはコイル径
の異なる円筒コイル状スチールフィラメントは、等間隔
に配列してトラピンクゴムに埋設される。The cylindrical coiled steel filaments having different coil pitches or coil diameters obtained as described above are arranged at equal intervals and embedded in the trap pink rubber.
上記公知の方法を利用して第２の構造のタイヤ補強体を
製造するには、可動板６の可動孔６ａ・・・・・・６ｅ
の直径を同じとし、固定孔５ａ・・・・・・・・・間の
間隔、および固定孔５ａ・・・・・・・・・に対応する
可動孔６ａ・・・・・・６ｅの間隔を順次小さく密に配
列して得られるコイルピッチ、コイル径の同じ円筒コイ
ル状スチールフイラメン１ヘヲ引続いて１−ツピンクゴ
ムに埋設することによって、引張モジュラスが順次小さ
くなったタイヤ補強体かも＋らｈる。In order to manufacture the tire reinforcement body of the second structure using the above-mentioned known method, the movable holes 6a...6e of the movable plate 6 are
have the same diameter, and the distance between the fixed holes 5a and the distance between the movable holes 6a and 6e corresponding to the fixed holes 5a and 6e. By sequentially embedding cylindrical coiled steel filaments with the same coil pitch and coil diameter in 1-twisted rubber, the tensile modulus of the tire reinforcement can be gradually reduced. Huru.
上記のようにして得られたタイヤ補強体における引張モ
ジュラスの朴苅的差ば、タイヤ補強体の使用目的によっ
て異なり、スチールライＡ！の太さ、コイルピッチ、コ
イル径、配列密度を適宜に選ぶことによって設定される
。The difference in tensile modulus of the tire reinforcement obtained as described above varies depending on the purpose of use of the tire reinforcement. It is set by appropriately selecting the thickness, coil pitch, coil diameter, and arrangement density.
この発明のタイヤ補強体に、タイヤコードの側端部にお
いて、スチールフィラメントをタイヤ円周方向に配列し
て使用される。補強されるタイヤコードにヌチールコー
ドおよび有機繊維コードのいずれでもよく、寸だ補強部
分は、エツジベルト層、ブレーカ層の端部、カーカス１
帝の側部、チェーファ部などにｆ吏用できる。特にこの
ｈ″、明のタイヤ補強体は、ラジアルタイヤのベルトエ
ツジ層として効果を発揮する。In the tire reinforcing body of the present invention, steel filaments are arranged in the tire circumferential direction at the side ends of the tire cords. The tire cord to be reinforced may be either a nutile cord or an organic fiber cord, and the reinforced portions include the edge belt layer, the end of the breaker layer, and the carcass
It can be used on the side of the emperor, on the chafa part, etc. In particular, this h'' light tire reinforcing body is effective as a belt edge layer of a radial tire.
この出願の第２発明は、上記第１発明のタイヤ補強体を
、カーカス層の中火外周部に設けたスチールコードから
なるベルト層の両側端部に、上記円筒コイル状スチール
フィラメントがタイヤ円周方向に、かつ上記タイヤ補強
体の引張モジュラスがタイヤ幅方向の中心側で相対的に
大きくなるように配列したことを特徴とする自動車用ラ
ジアルタイヤである。A second invention of this application provides that the tire reinforcing body of the first invention is arranged such that the cylindrical coiled steel filament is attached to both ends of a belt layer made of steel cords provided on the outer circumference of the carcass layer. This is a radial tire for an automobile, characterized in that the tires are arranged in such a manner that the tensile modulus of the tire reinforcing bodies is relatively large on the center side in the width direction of the tire.
従来のラジアルタイヤでは、エツジベルト層の引張モジ
ュラスはタイヤ幅方向にわたって均一に太きいために、
その側端部とゴム層との境界部分でゴム層とエツジベル
ト層との引張モジュラスの差が大きいために境界面での
剥離が生じ易かった。In conventional radial tires, the tensile modulus of the edge belt layer is uniformly thick across the width of the tire.
Because the difference in tensile modulus between the rubber layer and the edge belt layer was large at the boundary between the side edge and the rubber layer, peeling at the boundary surface was likely to occur.
しかるに上記第２発明のタイヤでに、エツジベルト層の
引張モジュラスに、タイヤ幅方向の中心側１で大きく、
側部側で小さくなっているために、タイヤ加硫成型時に
おけるタイヤ幅方向の円周方向への膨張率の差によって
、上記幅方向の引張モジュラスの差がなくなって平均化
され、従ってコ′ムとの境界領域でのゴムとの剥離が軽
減され、その結果高速耐久性が向上される。However, in the tire of the second invention, the tensile modulus of the edge belt layer is large on the center side 1 in the tire width direction.
Since it is smaller on the side part side, the difference in the expansion rate in the tire width direction and the circumferential direction during tire vulcanization eliminates the difference in the tensile modulus in the width direction and is averaged out. Peeling from the rubber at the boundary area with the rubber is reduced, resulting in improved high-speed durability.
以下にこの発明の詳細な説明する、。A detailed explanation of this invention follows.
実施例１
タイヤ円周方向に対して直角に配列されたポリエステル
コード（■０００ｄ×２）かＩ−、ナルｈ −カスプラ
イの２枚を重ね合わせたカーカス層の中央部外側に、ｌ
Ｘ５Ｘ０．２５ｙｙノ〃、撚りピッチＩＯπｍ、コード
径０．６８ｙｔｒｍのスチールコードからなり、タイ−
＼・円周方向に対して角度２３度でＶ行に西己列された
ベルトプライの２枚を相互に反対方向に重ね合わせたベ
ルト層を配＠ｒ〜、このベルト層の両側端部を覆うよう
に幅３Ｑｍｍのエツジベルｌ−１６ｋ タイヤ円周方向
に配置して、 １８５／ ７０−１８のラジアルタイ
ヤを製造した。上記エツジベルト層を構成する円筒コイ
ル状スチールフィラメントはｌＥＴ’ＩＯ，２５間のス
チールフィラメント３木を引き揃えてコイル状としたフ
ィラメント束の２５束を３０闘の間に等間隔に配列ｌま
たものであり、５束（６ａｍ ）を一群としてコイル形
状を変化させた。Example 1 On the outside of the central part of the carcass layer, which was made by overlapping two pieces of polyester cord (■000d x 2) or I-, null h-cusply, arranged at right angles to the tire circumferential direction,
Made of steel cord with X5X0.25yy, twist pitch IOπm, and cord diameter 0.68ytrm.
＼・A belt layer is arranged in which two belt plies arranged in V rows at an angle of 23 degrees to the circumferential direction are stacked in opposite directions. A 185/70-18 radial tire was manufactured by disposing Edgebel l-16k tires with a width of 3 Qmm in the circumferential direction so as to cover them. The cylindrical coiled steel filament constituting the edge belt layer is made by arranging 25 bundles of filament bundles made by aligning 3 pieces of steel filament between 25 pieces into a coil shape and arranging them at equal intervals over a period of 30 cycles. The coil shape was changed by forming a group of 5 bundles (6 am).
各群のコイル外径、コイルピッチおよび引張モシュラヌ
に下記第１表のとおりである。The coil outer diameter, coil pitch, and tensile strength of each group are shown in Table 1 below.
第 １ 表
なお群番号は、タイヤ円周方向の中心側より端部側への
配列順位を示す。The group numbers in Table 1 indicate the arrangement order from the center side to the end side in the tire circumferential direction.
実施例２
」二記実施例１における篤３群のフィラメント束（コイ
ル外径ｔ １．４３π）７．コイルピッチ８８８騎、）
引張モジュラス２３２０ｋＯ／６７１Ｊｍ ） ｆｆｉ
同じとし、各群の６問当りのフィラメント束数を下記第
２表のように変化して配列した。Example 2 Filament bundle of Atsushi 3 group in Example 1 (coil outer diameter t 1.43π)7. Coil pitch 888 horses,)
Tensile modulus 2320kO/671Jm) ffi
The number of filament bundles per 6 questions in each group was changed as shown in Table 2 below.
第 ２ 表
比ｌｌｃり例
」二記実施例２において、エツジベルト層ヲ構成する円
筒コイル状スチールフィラノン１−の各束の間隔を実施
例１と同様の等間隔に配列し／と。In Example 2, the intervals between the bundles of cylindrical coiled steel filanone 1- constituting the edge belt layer were arranged at equal intervals as in Example 1.
上記実施例■、２および比較例のワシアルタイヤの高速
耐久性を試験した結果を一ト記第３表に示す。The results of testing the high-speed durability of the Wasial tires of Examples 1 and 2 and Comparative Example are shown in Table 3.
第３表
」−−−−、−１−−−−□−−−□１なお、高速耐久
性は、歌曲経済委員会規則ＥＣ１ｆｆのＲｅｇｕ十〇、
を上○ｒ１羨３の規定に準じ、タイヤ内圧２．９ ｋｔ
）／ｃｌｒ 、荷重４００ｇの条件で回転試験機でタイ
ヤを回転させ、回転速度を１０分毎に１０ ｋｍ１時ず
つ増加してタイヤの故障が発生するに至るときの速度＜
ｋｍ１時）をもって示した。Table 3" ---, -1--
According to the regulations of ○r1en3, the tire internal pressure is 2.9 kt.
)/clr, the tire is rotated with a rotation tester under the condition of a load of 400 g, and the rotational speed is increased by 10 km/hour every 10 minutes to determine the speed at which tire failure occurs <
km).
第１図にラシアルタイヘツの一部を示す断面図、第２図
はこの発明の円筒コイル状スチールフィラメントの製造
の一例を説明するための斜視図、第３図はこの発明の円
筒コイル状スチールフィラメントの配列全模型的に示す
平面１図である。
１：カーカス層、２：ベルｌ一層、３：円筒コイル状ス
チールフィラメント、４：エツジベルト／？ｎ（タイヤ
補強体）。
特許出願人 東洋ゴム工業株式会社
代岬人 弁理士 坂 野 威 夫
〃 〃 吉ｌ−１］了司
ａ
第３図Fig. 1 is a sectional view showing a part of the radial tie, Fig. 2 is a perspective view for explaining an example of manufacturing the cylindrical coiled steel filament of the present invention, and Fig. 3 is a sectional view of the cylindrical coiled steel filament of the present invention. FIG. 1 is a plan view showing the entire array model. 1: carcass layer, 2: bell single layer, 3: cylindrical coiled steel filament, 4: edge belt/? n (tire reinforcement). Patent applicant: Toyo Tire & Rubber Industries, Ltd., Misaki Patent attorney: Takeo Sakano〃〃〃Kichi l-1] Ryojia Figure 3
Claims (1)
なるように円筒コイル状ヌチールフィラメントを配列し
て埋設したことを特徴とするタイヤ補強体。 〔２〕幅方向における引張モジュラスが相対的に異なる
ように円筒コイル状スチールフィラメントを配列；〜で
埋設したタイヤ補強体を、カーカス層の中央外周部に設
けたヌチールコードからなるベル１〜層の両側端部に、
上記円筒コイル状ヌチーｌレフィラメントがタイヤ円周
方向に、かつ上記タイヤ補強体の引張モジュラスがタイ
ヤ幅方向の中心側でｔ目射的に大きくなるように配列し
たことを特徴とする自動車用ラジアルタイヤ。[Scope of Claims] [1] A tire reinforcing body characterized in that cylindrical coiled Nutille filaments are arranged and embedded so that the tensile modulus in the width direction differs in relation to t11. [2] Arranging cylindrical coiled steel filaments so that the tensile modulus in the width direction is relatively different; A tire reinforcement body embedded with ~ is placed on both sides of the bell 1 ~ layer consisting of a Nutille cord provided at the center outer circumference of the carcass layer. At the end,
A radial tire for an automobile, characterized in that the cylindrical coil-shaped refilaments are arranged in the circumferential direction of the tire such that the tensile modulus of the tire reinforcing body increases in the t-direction on the center side in the width direction of the tire. tire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57135483A JPS5926304A (en) | 1982-08-03 | 1982-08-03 | Tyre reinforcement and radial tyre for car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57135483A JPS5926304A (en) | 1982-08-03 | 1982-08-03 | Tyre reinforcement and radial tyre for car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5926304A true JPS5926304A (en) | 1984-02-10 |
Family
ID=15152769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57135483A Pending JPS5926304A (en) | 1982-08-03 | 1982-08-03 | Tyre reinforcement and radial tyre for car |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5926304A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62184002U (en) * | 1986-05-14 | 1987-11-21 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52140105A (en) * | 1976-05-17 | 1977-11-22 | Pirelli | Pneumatic tire |
| JPS5751502A (en) * | 1980-09-09 | 1982-03-26 | Toyo Tire & Rubber Co Ltd | Pneumatic tire |
-
1982
- 1982-08-03 JP JP57135483A patent/JPS5926304A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52140105A (en) * | 1976-05-17 | 1977-11-22 | Pirelli | Pneumatic tire |
| JPS5751502A (en) * | 1980-09-09 | 1982-03-26 | Toyo Tire & Rubber Co Ltd | Pneumatic tire |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62184002U (en) * | 1986-05-14 | 1987-11-21 |
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