JPH03169726A - Bias tire for high pressure - Google Patents
Bias tire for high pressureInfo
- Publication number
- JPH03169726A JPH03169726A JP1312449A JP31244989A JPH03169726A JP H03169726 A JPH03169726 A JP H03169726A JP 1312449 A JP1312449 A JP 1312449A JP 31244989 A JP31244989 A JP 31244989A JP H03169726 A JPH03169726 A JP H03169726A
- Authority
- JP
- Japan
- Prior art keywords
- bead
- tire
- carcass
- bead cores
- cores
- 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
- 239000011324 bead Substances 0.000 claims abstract description 88
- 230000003247 decreasing effect Effects 0.000 abstract description 3
- 239000000835 fiber Substances 0.000 description 10
- 238000004804 winding Methods 0.000 description 6
- 101100421425 Drosophila melanogaster Sply gene Proteins 0.000 description 3
- 239000004760 aramid Substances 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004953 Aliphatic polyamide Substances 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229920003231 aliphatic polyamide Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920006306 polyurethane fiber Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Tires In General (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、軽量化を計りうるとともに、ビード部の耐久
性と高速性能とを向上しうる高圧用バイアスタイヤに関
する.
〔従来の技術〕
高圧用バイアスタイヤ、特に航空機に用いるタイヤは、
近年の航空機の大型化、飛行速度の増大に伴い、使用速
度、作用荷重が増大し、従って、■ 航空機が滑走路に
離着陸する際の衝撃を効果的に緩和させるため、タイヤ
の負荷時の撓み量が、例えば28〜38%と極めて大で
あり、従って大きな繰返し変形に耐えうろこと、
■ 飛行機の高速化に伴い、離着陸に伴う速度が増大し
、従って大荷重、大きな変形下における高速回転に耐え
ること、
■ 滑走路とゲートとの間を移動するときの低速ではあ
るが、比較的長時間に亘り大きな荷重が作用するタクシ
ー条件に耐えること、
に加えて、タイヤの軽量化が望まれる.なお、航空機用
タイヤは、大きな荷宣を支えるべく、10〜20kg/
cm”程度の高内圧で使用さり,、しかも運行の安全上
、使用内圧の4倍以上の強度に耐えることが要請されて
いる.
他方、このような航空機に用いる高圧用バイアスタイヤ
は、特願平1−98189号に開示されかつ第3図に略
示する如く、ビード部aに複数のビードコアb,c,d
をタイヤ軸方向に沿って配列するとともに、それぞれの
ビードコアb%C1dに複数枚のカーカスプライからな
るカーカスe、f,gをそれぞれ巻付けていた。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a high-pressure bias tire that can be reduced in weight and improved in bead durability and high-speed performance. [Prior art] High-pressure bias tires, especially tires used for aircraft, are
In recent years, as aircraft have become larger and their flight speeds have increased, operating speeds and applied loads have increased. The amount is extremely large, for example, 28 to 38%, and therefore it is difficult to withstand large repeated deformations. ■ As aircraft speeds increase, the speeds associated with takeoff and landing increase, and therefore, it is difficult to withstand high-speed rotation under heavy loads and large deformations. ■ In addition to being able to withstand the taxi conditions in which a large load is applied over a relatively long period of time at low speeds when moving between the runway and the gate, it is also desirable to reduce the weight of the tires. In addition, aircraft tires are sold at 10 to 20 kg/kg in order to support large sales volume.
The tires are used at high internal pressures of about 1.5 cm", and for operational safety reasons, they are required to withstand strength more than four times the operating internal pressure. On the other hand, high-pressure bias tires used on such aircraft are required to be used in a patent application. As disclosed in Japanese Patent No. 1-98189 and schematically shown in FIG.
were arranged along the tire axial direction, and carcass e, f, g consisting of a plurality of carcass plies were wound around each bead core b%C1d, respectively.
しかしながらこの構造のタイヤは、横剛性が大きいとい
う優れた利点を有する反面、各ビードコアbSc,dが
ビード部aの巾方向に並ぶため、ビード巾Wが大となり
、しかも高内圧に耐えうるよう各カーカスe,f,gは
それぞれ複数枚のカーカスブライによって形成され、し
かもこれらのカーカスe,f,gが前記ビード部b,c
,dの回りをそれぞれ巻回する構造であるため前記ビー
ド巾Wは非常に大きくなる.
その結果、タイヤの重量が大となるのみならず、ビード
部aがサイドウオール部に比べて著しく膨出することと
なり、タイヤ変形時において、ビード部aに大きな歪が
生じタイヤの耐久性が低下するという問題がある.
発明者は、複数のビードコアを同芯かつ半径方向に順重
ね合わせることにより、ビード巾を狭くできタイヤの重
量を軽減しうるとともに、ビード部に生じる歪を減少さ
せることによって、耐久性を向上しうろことに気付き本
発明を完威したのである.
本発明は、軽量化を計り併せてビード部の耐久性を高め
、高速性能を向上、しうる高圧用バイアスタイヤの提供
を目的としている。However, while the tire with this structure has the excellent advantage of high lateral rigidity, the bead cores bSc and d are lined up in the width direction of the bead portion a, so the bead width W is large, and each The carcass e, f, g are each formed by a plurality of carcass blies, and these carcass e, f, g are connected to the bead portions b, c.
, d, the bead width W becomes very large. As a result, not only does the weight of the tire increase, but also the bead part a bulges out significantly compared to the sidewall part, and when the tire deforms, a large strain occurs in the bead part a, reducing the durability of the tire. There is a problem with doing this. The inventor has found that by stacking multiple bead cores concentrically and radially in order, the bead width can be narrowed and the weight of the tire can be reduced. At the same time, durability can be improved by reducing distortion occurring in the bead portion. He noticed the scales and perfected the invention. An object of the present invention is to provide a high-pressure bias tire that is lightweight, increases the durability of the bead portion, and improves high-speed performance.
本発明は、トレンド部からサイドウォール部をへてビー
ド部にのびるカーカスプライを夫々内径面で折返す複数
のビードコアの内径を違えることにより該ビードコアを
同芯かつ半径方向外側に順次宣ねてなる高圧用バイアス
タイヤである。In the present invention, the carcass ply extending from the trend portion to the bead portion through the sidewall portion is folded back on the inner diameter surface of the plurality of bead cores, each of which has a different inner diameter, so that the bead cores are sequentially extended concentrically and outward in the radial direction. This is a high pressure bias tire.
内径を違えた複数のビードコアを回芯かつ半径方向に順
次重ねているため、ビード部はビードコアをタイヤ軸方
向に並設した従来の構造のものに比べてビード部の巾を
狭く形成でき、タイヤ重量を軽減しうる。又ビード部の
巾が小となることにより、ビード巾とサイドウォール部
との厚みとの差を少なくでき、その結果ビード部の膨出
量を減少しうるため、タイヤ変形によりビード部に生じ
る応力が小となり耐久性を向上しうる.さらにビードコ
アは半径方向外側に順次重なるため、タイヤ変形時にお
けるタイヤの横剛性が高まりビードエイペックを省略す
ることが可能となる。Because multiple bead cores with different inner diameters are stacked one after the other in the rotational and radial direction, the width of the bead can be formed narrower than in the conventional structure in which bead cores are arranged side by side in the axial direction of the tire. Weight can be reduced. Also, by reducing the width of the bead, the difference between the bead width and the thickness of the sidewall can be reduced, and as a result, the amount of bulge in the bead can be reduced, reducing the stress generated in the bead due to tire deformation. is small and durability can be improved. Furthermore, since the bead cores overlap successively outward in the radial direction, the lateral rigidity of the tire increases during tire deformation, making it possible to omit the bead apec.
加うるにカーカスの巻上げ端をビードコアとその半径方
向外側に重ねたビードコアとの間で挟むことが可能とな
るため、内、外のビードコア間でカーカスを挟み込んだ
場合には、カーカス端部における剥離を効果的に防止で
き、カーカスプライの重ね枚数を減らすことも可能とな
り、一層の軽量化を計りうる。In addition, the rolled end of the carcass can be sandwiched between the bead core and the bead core stacked on the outside in the radial direction, so if the carcass is sandwiched between the inner and outer bead cores, separation at the end of the carcass can be avoided. It is possible to effectively prevent this, and it is also possible to reduce the number of overlapping carcass plies, resulting in further weight reduction.
以下本発明の一実施例を図面に基づき説明する.第l、
2図において高圧用バイアスタイヤ1は、左右一対のか
つビードコア2が通るビード部3と、該ビード部3に連
なりタイヤ半径方向外向きにのびるサイドウォール部4
と、該サイドウオール部4の外端間を継ぐトレッド部5
とからなるトロイド状のタイヤ基体6を具えるとともに
、前記ビードコア2は、タイヤ半径方向内側から外向き
に並置される第1のビードコア2A,第2のビードコア
2B,第3のビードコア2Cを含んでいる.又タイヤ基
体6には、カーカス7と、トレッド部5の内方かつカー
カス7の半径方向外面にトレッドゴムを介して配したプ
レーカ10とを具えるとともに、前記カーカス7は、複
数のカーカスプライ群G−からなる.
又前記第1、第2、第3のビードコア2A、2B、2C
は、スチール又は芳香族ボリアミド等の有機繊維からな
り、高い強度を有するコードを巻回することにより形威
され、前記ビードコア2A,2B、2Cを同芯かつ半径
方向外側に第1のビードコア2A,第2のビードコア2
B,第3のビードコア2Cの順にしかも隣設するビード
コア2、2の間にはそれぞれ間隙を有して配される.又
各ビードコア2A,2B,2Cは半径方向外側に位置す
るものほど巾袂に形威される.又カーカスプライ群Gは
、ともにトレッド部5からサイドウォール部4をへて、
前記第lのビードコア2Aの内径面9Aにタイヤ内側か
ら外側に巻付くタイヤ内方に位置する4枚のカー力スプ
ライ11a−・・からなる第1のカーカスプライ群GA
(第1、3図に破線で示す)、第2のビードコア2Bの
内径面9Bに内側から外側に巻付く4枚のカーカスプラ
イllb・−からなる第2のカーカスプライ群GB (
第1、3図に実線で示す〉、第3のビードコア2Cの内
径面9Cに内側から外側に巻付く4枚のカーカスプライ
llc・一・−からなる第3のカーカスプライ群GC(
第1,3図に点線で示す)からなり、本実施例ではタイ
ヤ基体6の外面側に、第lのビードコア2Aの外側から
内側に内径面9Aに沿ってのびる2枚の外カーカスブラ
イlid、lidからなる外カーカスプライ群GD(第
1、3図に一点鎖線で示す)が設けられる。An embodiment of the present invention will be explained below based on the drawings. No.l,
In FIG. 2, the high-pressure bias tire 1 has a pair of left and right bead portions 3 through which the bead core 2 passes, and a sidewall portion 4 that is continuous with the bead portions 3 and extends outward in the tire radial direction.
and a tread portion 5 connecting between the outer ends of the sidewall portion 4.
The bead core 2 includes a first bead core 2A, a second bead core 2B, and a third bead core 2C, which are arranged side by side from inside to outside in the tire radial direction. There is. The tire base 6 also includes a carcass 7 and a breaker 10 disposed inside the tread portion 5 and on the radially outer surface of the carcass 7 via tread rubber, and the carcass 7 includes a plurality of carcass ply groups. Consists of G-. Further, the first, second and third bead cores 2A, 2B, 2C
is formed by winding a high-strength cord made of organic fiber such as steel or aromatic polyamide, and connects the bead cores 2A, 2B, and 2C concentrically and radially outwardly with a first bead core 2A, Second bead core 2
B and the third bead core 2C are arranged in this order, with a gap between adjacent bead cores 2 and 2, respectively. Further, the bead cores 2A, 2B, and 2C are shaped more widely as they are located on the outer side in the radial direction. In addition, the carcass ply group G both passes from the tread portion 5 to the sidewall portion 4,
A first carcass sply group GA consisting of four carcass splices 11a located inside the tire that wrap around the inner diameter surface 9A of the l-th bead core 2A from the inside to the outside of the tire.
(shown by broken lines in Figures 1 and 3), a second carcass ply group GB (indicated by broken lines in Figs.
A third carcass ply group GC (indicated by solid lines in Figures 1 and 3) consists of four carcass plies llc.
(shown by dotted lines in FIGS. 1 and 3), and in this embodiment, two outer carcass bridles are provided on the outer surface side of the tire base 6, extending from the outer side of the first bead core 2A inward along the inner diameter surface 9A, An outer carcass ply group GD (shown by a dashed line in FIGS. 1 and 3) consisting of a lid is provided.
又前記第1のカーカスプライ群GAの各カーカスブライ
lla・・−は、第1のビードコア2Aの内径面9Aを
とおる底部GA2を介して該第1のビードコア2Aの外
面を経てその第1のビードコア2人外径面12Aにのび
る巻上げ部GA3が形設される。Further, each carcass brise lla... of the first carcass ply group GA passes through the bottom GA2 passing through the inner diameter surface 9A of the first bead core 2A, and passes through the outer surface of the first bead core 2A to the first bead core. A winding portion GA3 extending to the two-person outer diameter surface 12A is formed.
又第2のカーカスブライ群GBの各カー力スプライll
b・−・−は、第2のビードコア2Bの内径面9Bを通
りかつ第1のビードコア2Aとの間で第1のカーカスプ
ライ郡GAの前記巻上げ部GA3を挟む底部GB2に延
設され第2のビードコア2Bの外面を経てその外径面に
のびる巻上げ部GB3が設けられる。Also, each car force splice of the second carcass bly group GB
b.-- is extended to the bottom portion GB2 which passes through the inner diameter surface 9B of the second bead core 2B and sandwiches the winding portion GA3 of the first carcass ply group GA between it and the first bead core 2A. A winding portion GB3 is provided extending from the outer surface of the bead core 2B to the outer diameter surface thereof.
さらに第3のカー力スプライ群GCの各カーカスプライ
llcは、前記第2のカーカスブライ群GEとIaJ様
に第3のビードコア2cの内径面9cを通り第2のカー
力スプライ群GBの前記巻上げ部GB3を第2のビード
コア2Bの外径面12Bとの間で挟む底部GC2と、該
底部GC2に接続され、かつ第3のビードコア2cとの
外面、外径面12Cを沿ってのびカー力スプライ群GD
内方で半径方向外方に折返す折返し部GC3とを具える
.
前記各カー力スプライlla〜lidは、ポリビニール
アルコール系繊維、ポリ塩化ビニリデン系繊維、ポリ塩
化ビニール系繊維、ポリアクリロニトリル系繊維、ポリ
エチレン系繊維、ポリウレタン系繊維、セルローズ系繊
維、セルローズエステル系繊維、さらには芳香族ボリア
ミド系繊維などの有機繊維が使用でき、特にナイロン6
6等の脂肪族ボリアミド系繊維を好適に用いうる。Further, each carcass ply llc of the third Kerr force splice group GC passes through the inner diameter surface 9c of the third bead core 2c in the same manner as the second carcass bly group GE and IaJ, and the winding of the second Kerr force splice group GB. A bottom portion GC2 that sandwiches the portion GB3 with the outer diameter surface 12B of the second bead core 2B, and a stretcher force splice that is connected to the bottom portion GC2 and extends along the outer surface and the outer diameter surface 12C of the third bead core 2c. Group GD
It is provided with a folded part GC3 which is folded inwardly and radially outwardly. Each of the Kerr force splices lla to lid includes polyvinyl alcohol fibers, polyvinylidene chloride fibers, polyvinyl chloride fibers, polyacrylonitrile fibers, polyethylene fibers, polyurethane fibers, cellulose fibers, cellulose ester fibers, Furthermore, organic fibers such as aromatic polyamide fibers can be used, especially nylon 6
Aliphatic polyamide fibers such as No. 6 can be suitably used.
又第1、第2、第3のカーカスプライ群OA,GB,G
Cの各カーカスコードは、本実施例では、タイヤ赤道C
に対して20〜50度、好ましくは30〜45度の範囲
で傾ける.しかもタイヤの内側から外側に順に配した第
1〜第3のカーカスプライ群GA−GCのカーカスコー
ドの前記コード角度を、順次減少させる.
例えば、第1のカーカスプライ群GAのコード角度は、
25〜50度、好ましくは30〜45度、第2、第3の
カーカスブライ群GBSGCとなるに従い、第1のカー
カスプライ群GAのコード角度に比して、1〜5度、好
ましくは2度程度の角度段階で順次コード角度を減じる
。即ち、第1のカーカスプライ群GAのコード角度が前
記のように40度であるとき、第2の内カーカスプライ
郡GCのコード角度を36度程度に設定する.しかも、
各カーカスプライ群GA−GCにおける各カー力スプラ
イ11a=11cにおいては、各カー力スコードが互い
に交差させて配列する。Also, the first, second and third carcass ply groups OA, GB, G
In this embodiment, each carcass code of C is the tire equator C.
Tilt within a range of 20 to 50 degrees, preferably 30 to 45 degrees. Moreover, the cord angles of the carcass cords of the first to third carcass ply groups GA-GC arranged from the inside to the outside of the tire are sequentially decreased. For example, the cord angle of the first carcass ply group GA is
25 to 50 degrees, preferably 30 to 45 degrees, and for the second and third carcass ply groups GBSGC, 1 to 5 degrees, preferably 2 degrees, compared to the cord angle of the first carcass ply group GA. The code angle is sequentially reduced in angle steps of approximately 100 degrees. That is, when the cord angle of the first carcass ply group GA is 40 degrees as described above, the cord angle of the second inner carcass ply group GC is set to about 36 degrees. Moreover,
In each Kerr force spline 11a=11c in each carcass ply group GA-GC, each Kerr force squawd is arranged to cross each other.
このようにコード角度を内側から外側にかけて滅少させ
ることによって、内から外に向かってプライの剛さを高
め、好ましい所定のインフレート形状を得ることができ
る。そのために外のカー力スプライ郡GDのカー力スコ
ードの傾きは、さらに小、例えば34度程度に設定され
る。By decreasing the cord angle from the inside to the outside in this manner, the stiffness of the ply increases from the inside to the outside and a desired predetermined inflated shape can be obtained. Therefore, the slope of the Kerr force code of the outer Kerr force spry group GD is set to be even smaller, for example, about 34 degrees.
従って本願では、
(1) 複数のビードコア2がタイヤ半径方向に並ぶ
ことにより、タイヤ剛性を低下させることなくビード巾
WBを大巾に減少できる.
(2)各ビードコア2A,2B,2Cの断面形状、断面
積を随意に設定できるため、タイヤ変形によって生じる
歪が少ない形状を自由に選定でき、ビード部の強度を高
め耐久性、高速走行性能の向上を容易になしうる.
ちなみにビード部3のビード巾WBと該ビード部3の半
径方向外端部の巾WBHとの比WBH/WBが0. 5
〜0.8の範囲において歪が最も少なくなる。Therefore, in the present application, (1) By arranging a plurality of bead cores 2 in the tire radial direction, the bead width WB can be greatly reduced without reducing tire rigidity. (2) Since the cross-sectional shape and cross-sectional area of each bead core 2A, 2B, and 2C can be set arbitrarily, a shape with less distortion caused by tire deformation can be freely selected, increasing the strength of the bead portion and improving durability and high-speed running performance. Improvements can be made easily. Incidentally, the ratio WBH/WB of the bead width WB of the bead portion 3 to the width WBH of the radially outer end portion of the bead portion 3 is 0. 5
Distortion is lowest in the range of ~0.8.
(3) さらにカーカスプライの構戒枚数を、特に内
側に位置するカー力スプライ郡において著滅でき、タイ
ヤ厚さの減少と相俟ってタイヤ重量を軽減することが出
来る。(3) Furthermore, the number of carcass plies can be significantly reduced, especially in the carcass ply group located on the inside, and together with the reduction in tire thickness, the tire weight can be reduced.
(4}シかも第1のカー力スプライ群GA,第2のカー
カスプライ群の各カーカスブライlla1lb・・・の
巻上げ部を第1、第2のビードコア2A,2B及び第2
、第3のビードコア2B,2C間で挟むことが可能であ
るため、カーカスブライの端部から生じる剥離を効果的
に防止しうる.(5)加うるにビードコア2−をタイヤ
半径方向に重ね合わせたため、重なり合うビードコアに
よってビード部の曲げ開性が高まり、ビード部の剛性ヲ
保持するためのビードエイペックスを省略することが可
能となることによって、タイヤの一層の軽量化を計りう
る。(4) The winding portions of each carcass bridle lla1lb of the first carcass sply group GA, second carcass sply group...
, can be sandwiched between the third bead cores 2B and 2C, so that peeling from the ends of the carcass bridle can be effectively prevented. (5) In addition, since the bead cores 2- are overlapped in the tire radial direction, the overlapping bead cores increase the bending ability of the bead part, making it possible to omit the bead apex for maintaining the rigidity of the bead part. By doing so, it is possible to further reduce the weight of the tire.
叙上の如く本発明の高圧用バイアスタイヤは、カー力ス
プライを夫々内径面で折返す複数のビードコアの内径を
違えることによりビードコアを回芯かつ半径方向外側に
順次重ねているため、ビード巾を小さくできタイヤの変
形によって生じる歪を減少し、高速性能を高め耐久性を
向上しうるとともに、軽量化を計りうる.As mentioned above, the high-pressure bias tire of the present invention has a plurality of bead cores with different inner diameters for folding Kerr force splies on their inner diameter surfaces, so that the bead cores are rotated and stacked sequentially on the outside in the radial direction, so that the bead width can be increased. It can be made smaller, reducing distortion caused by tire deformation, improving high-speed performance and durability, and reducing weight.
第1園は本発明の一実施例を示すタイヤ右半分断面図、
第2図はそのビード部を拡大して示す断面園、第3園は
従来技術を示す断面図である。
2、2A、2B、2C一・−ビードコア、3・・・ビー
ド部、 4・−・サイドウォール部、5・・・一トレン
ド部、
9、9A、9B、9C−・・内径面、
11、lla,llb,llc−カーカスプライ。The first picture is a right half sectional view of a tire showing an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing an enlarged view of the bead portion, and FIG. 3 is a cross-sectional view showing a conventional technique. 2, 2A, 2B, 2C - bead core, 3... bead part, 4... sidewall part, 5... trend part, 9, 9A, 9B, 9C - inner diameter surface, 11, lla, llb, llc - carcass ply.
Claims (1)
のびるカーカスプライを夫々内径面で折返す複数のビー
ドコアの内径を違えることにより該ビードコアを同芯か
つ半径方向外側に順次重ねてなる高圧用バイアスタイヤ
。1. A high-pressure bias tire in which the carcass ply extending from the tread part through the sidewall part to the bead part is folded back on the inner diameter surface of a plurality of bead cores, each having a different inner diameter, so that the bead cores are sequentially stacked concentrically and outward in the radial direction. .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1312449A JPH03169726A (en) | 1989-11-30 | 1989-11-30 | Bias tire for high pressure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1312449A JPH03169726A (en) | 1989-11-30 | 1989-11-30 | Bias tire for high pressure |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH03169726A true JPH03169726A (en) | 1991-07-23 |
Family
ID=18029331
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1312449A Pending JPH03169726A (en) | 1989-11-30 | 1989-11-30 | Bias tire for high pressure |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH03169726A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5909757A (en) * | 1995-10-23 | 1999-06-08 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire with radially inner and radially outer bead core |
WO2004078494A1 (en) * | 2003-03-03 | 2004-09-16 | Societe De Technologie Michelin | Tyre with a reinforced flank and method for the production thereof |
KR100453202B1 (en) * | 2002-07-09 | 2004-10-15 | 한국타이어 주식회사 | tire for heavily equipped |
-
1989
- 1989-11-30 JP JP1312449A patent/JPH03169726A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5909757A (en) * | 1995-10-23 | 1999-06-08 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire with radially inner and radially outer bead core |
KR100453202B1 (en) * | 2002-07-09 | 2004-10-15 | 한국타이어 주식회사 | tire for heavily equipped |
WO2004078494A1 (en) * | 2003-03-03 | 2004-09-16 | Societe De Technologie Michelin | Tyre with a reinforced flank and method for the production thereof |
JP2006519131A (en) * | 2003-03-03 | 2006-08-24 | ソシエテ ド テクノロジー ミシュラン | Tire with reinforced sidewall and method of manufacturing the same |
US7278458B2 (en) | 2003-03-03 | 2007-10-09 | Michelin Recherche Et Technique, S.A. | Tire with a reinforced sidewall and fabrication process |
CN100391752C (en) * | 2003-03-03 | 2008-06-04 | 米其林技术公司 | Tire with a reinforced sidewall and fabrication process |
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