JPS6088612A - Radial tire for heavy load - Google Patents

Radial tire for heavy load

Info

Publication number
JPS6088612A
JPS6088612A JP58196791A JP19679183A JPS6088612A JP S6088612 A JPS6088612 A JP S6088612A JP 58196791 A JP58196791 A JP 58196791A JP 19679183 A JP19679183 A JP 19679183A JP S6088612 A JPS6088612 A JP S6088612A
Authority
JP
Japan
Prior art keywords
reinforcing layer
bead
layer
cord
carcass
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
Application number
JP58196791A
Other languages
Japanese (ja)
Other versions
JPH0617082B2 (en
Inventor
Shoji Kono
昌次 河野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Rubber Industries Ltd
Original Assignee
Sumitomo Rubber Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Rubber Industries Ltd filed Critical Sumitomo Rubber Industries Ltd
Priority to JP19679183A priority Critical patent/JPH0617082B2/en
Publication of JPS6088612A publication Critical patent/JPS6088612A/en
Publication of JPH0617082B2 publication Critical patent/JPH0617082B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
    • 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
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
    • B60C15/0603—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead characterised by features of the bead filler or apex
    • B60C15/0607—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead characterised by features of the bead filler or apex comprising several parts, e.g. made of different rubbers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Abstract

PURPOSE:To improve the durability of a bead portion in a radial tire for bus or the like by constituting a bead reinforcing portion from a two soft and hard layers constituted beadeipex, a protecting layer using short fiber mixing rubber and an additional reinforcing layer having specified constitution. CONSTITUTION:Between a folded-back portion 4a of a carcass or the outside portion of a bead portion of a cord reinforcing layer 5 and a beadeipex 6 is disposed an additional reinforcing layer 7 inclined in the opposite direction to cords of the cord reinforcing layer 5. A protective layer 8 of short fiber mixing rubber is disposed to cover the inner and upper ends 5a, 5b of the additional reinforcing layer 7 and the cord reinforcing layer 5. Said beadeipex 6 is constituted from a high elasticity rubber layer 6a and a low elasticity rubber layer 6b. Thus, the durability of the bead portion can be improved.

Description

【発明の詳細な説明】 本発明はビード部の耐久性を改善した重荷重用重用のタ
イヤは、一般に、スチールごｌ−ドをラジアル方向に配
列したカーカスを有しがっそのスチールコードの両端は
ビードコアのまわりを内側から外側にかけて折返えずと
ともに、その外側の折返し部を囲んでコード補強層を配
置しているが、カーカスの折返し部及びコード補強層Ｑ
月二端部では周囲のゴムの間に剛性の段差が形成される
ことになり、この領域では走行の間、屈曲変形によって
応力集中が生じる結果、コーＦ　？＋Ｉｉ強屓あるいは
カーカスの折返し部の上端部ｆζ１近でゴム剥離が発止
しやすい。DETAILED DESCRIPTION OF THE INVENTION A heavy-duty tire with improved bead durability according to the present invention generally has a carcass in which steel cords are arranged in the radial direction. A cord reinforcing layer is placed around the bead core from the inside to the outside, and a cord reinforcing layer is placed around the outside folded part.
At the second end of the moon, a rigid step is formed between the surrounding rubber, and stress concentration occurs in this region due to bending deformation during running, resulting in CoF? Rubber peeling tends to occur near the +Ii strength or the upper end fζ1 of the folded part of the carcass.

従って、従来からコード補強層の外側又は内側に隣接し
て各種の補強層を配置し剛性の段差を緩和する等の方法
が提案されζいるが、いずれも充分にはこの問題を解決
していない。Therefore, methods have been proposed in the past, such as arranging various types of reinforcing layers adjacent to the outside or inside of the cord reinforcing layer to alleviate the difference in rigidity, but none of these methods has satisfactorily solved this problem. .

本発明は、と−１：部の走行時の変形挙動につぃて、前
記カーカスの折返し部及びコード補強層近傍のゴム材料
の種類及び配置について研究を重ねた結果完成したもの
であり、前記問題点を解決し、耐久性を向上した重荷重
用ラジアルタイヤの提供を目的としている。The present invention was completed as a result of repeated research on the type and arrangement of rubber materials near the folded portion of the carcass and the cord reinforcing layer, with regard to the deformation behavior of the -1 section during running. The aim is to solve problems and provide heavy-duty radial tires with improved durability.

以下本発明の一実施例を図面に基づき説明する。An embodiment of the present invention will be described below based on the drawings.

片側のビード部のみの断面を示す第１図において、重荷
重用ラジアルタイヤ１は、スチニルコード２がラジアル
方向に配列されかつその両端をビードコア３のまわりを
内側から外側に折返されるカーカス４と、コード補強Ｎ
５と、ビードエーペックス６と、追加補強層７と、保護
層８とを具え、又本例では、保護Ｍ８は３つの保護層部
９．１０．１１からなる。In FIG. 1, which shows a cross section of only one bead portion, a heavy-duty radial tire 1 includes a carcass 4 in which stinyl cords 2 are arranged in the radial direction and whose ends are folded around a bead core 3 from inside to outside; Reinforcement N
5, a bead apex 6, an additional reinforcing layer 7 and a protective layer 8, and in this example the protection M8 consists of three protective layer parts 9.10.11.

コード補強層５は、カーカス４の折返し部４ａの外側に
隣接して配置されるとともに、そのビード部外側の上端
５ａは、カーカス４の折返し部４ａの上端４ｂを越える
位置まで延設される。又該コード補強層５のコードは、
カーカスのコード配列方向に対して通常２０“〜７０゛
の角度で傾斜している。なお折返し部４ａの上端４ｂに
比べてコード補強層５のビード部外側の上端５ａを低く
形成することもできる。The cord reinforcing layer 5 is arranged adjacent to the outside of the folded portion 4a of the carcass 4, and its upper end 5a outside the bead portion extends to a position beyond the upper end 4b of the folded portion 4a of the carcass 4. Moreover, the cord of the cord reinforcing layer 5 is
It is normally inclined at an angle of 20" to 70" with respect to the cord arrangement direction of the carcass.The upper end 5a of the cord reinforcing layer 5 on the outside of the bead part can also be formed lower than the upper end 4b of the folded part 4a. .

コード補強層５は、スチールコー１ｊ　Ｉｉ＠、を好適
に用いうるが、その他ナイ１」ン、ポリエステル、レー
ヨン、あるいは１゛香族ポリアミ１′等の有機繊維コー
ドも使用でき、又カーカス４の折返し部４ａの補強のた
めには、プ゛′８族ポリアミｌ′、あるいはレーヨン等
の高弾性率の月質のｔ）のが好ましい。For the cord reinforcing layer 5, steel cord 1j Ii@ can be suitably used, but other organic fiber cords such as 1'', polyester, rayon, or 1'' aromatic polyamide 1' can also be used. For reinforcing the folded portion 4a, it is preferable to use a polyamide of group VIII or a material having a high elastic modulus such as rayon.

又コード補強層５のビード部外側のｌｅ＋Ｕ５ｂは、カ
ーカス４の折返し部４ａの−１−醋１４　ｂ　０）ｊｎ
ｉさを越える位置まで延長され、ビード部外側のカーカ
ス４を補強する。なおかかる構造とするごとにより、折
返し部４ａとの間の眉間剪断歪を軽減できる。In addition, le+U5b on the outside of the bead part of the cord reinforcing layer 5 is -1-14b0)jn of the folded part 4a of the carcass 4.
It is extended to a position that exceeds the height and reinforces the carcass 4 on the outside of the bead portion. Furthermore, by adopting such a structure, it is possible to reduce shear strain between the eyebrows and the folded portion 4a.

しかし追加補強層７の」一端７ａを越えると、前記ビー
ド部内側の上端５ｂが新たな応力對１中の起点となるの
で好ましくない。However, if it exceeds one end 7a of the additional reinforcing layer 7, the upper end 5b inside the bead portion becomes the starting point of a new stress 1, which is not preferable.

又追加補強層７は、カーカス４の折返し部４ａあるいは
コード補強層５のビーＦ　ＩＩＩ夕）側とビードエーペ
ックス６との間に挿置されている。Further, the additional reinforcing layer 7 is inserted between the folded portion 4a of the carcass 4 or the bead apex 6 and the bead apex 6 of the cord reinforcing layer 5.

該追加補強層７は、カーカス４のコード配列方、向に対
して２０゛〜７０°の角度で配置され、前記コード補強
１’ｔｉ９５のコードとは相互に反対方向に傾斜する。The additional reinforcing layer 7 is arranged at an angle of 20° to 70° with respect to the direction in which the cords are arranged in the carcass 4, and is inclined in the opposite direction to the cords of the cord reinforcement 1'ti95.

従ってカーカス４の折返し部４ａは前記コード補強Ｗ４
５と、追加補強層７とではさまれる結果となる。しかも
タイヤ半径方向にほぼ平行に配列された折返し部４ａの
コードに対して、コード補強層５及び追加補強Ｍ７のコ
ードが２０〜７０°の角度で交差しているため、タイヤ
周方向及び半径方向の歪を緩和し、眉間剥離を防止する
ことができる。Therefore, the folded portion 4a of the carcass 4 is connected to the cord reinforcement W4.
5 and the additional reinforcing layer 7. Moreover, since the cords of the cord reinforcing layer 5 and the additional reinforcement M7 intersect at an angle of 20 to 70 degrees with respect to the cords of the folded portion 4a arranged substantially parallel to the tire radial direction, It can alleviate the distortion of the eyebrows and prevent peeling between the eyebrows.

なお追加補強層７のコードは、コード補強層５と同じ材
質のものが使用できるが、ナイロン、ポリエステル等の
有機繊維コードで低弾性率のものが好適に使用される。The cord of the additional reinforcing layer 7 can be made of the same material as the cord reinforcing layer 5, but an organic fiber cord such as nylon or polyester with a low elastic modulus is preferably used.

又追加補強層７は、カーカス４の折返し部４ａとコード
補強層５の間に挿置することも可能である。Further, the additional reinforcing layer 7 can also be inserted between the folded portion 4a of the carcass 4 and the cord reinforcing layer 5.

前記ビードエーペックス６は、前記カーカス４とその折
返し部４ａあるいはコード補強層５とにより囲まれる領
域において、ビードコア３からサイドウオール方向に向
は延設される。又咳ビードエーペックス６は、ビード」
ア３の、Ｌ縁がらサイドウオール方向にのびかつタイヤ
内側に配する先細りの高弾性ゴム層６ａと、該高弾性ゴ
ムｍＧａの外側に隣接して配置する低弾性ゴム層６ｂの
２層体からなる。The bead apex 6 extends from the bead core 3 toward the sidewall in a region surrounded by the carcass 4 and its folded portion 4a or the cord reinforcing layer 5. Also, cough bead apex 6 is bead.”
From A3, a two-layer structure consisting of a tapered high elastic rubber layer 6a that extends from the L edge toward the sidewall and is placed inside the tire, and a low elastic rubber layer 6b that is placed adjacent to the outside of the high elastic rubber mGa. Become.

高弾性ゴム層６ａは、複素弾性率１？、が２５０　ｋｇ
ｆ／−以上で、またＪＩ３硬度が７５′〜９５゜の範囲
のゴムによって形成されるとともに、その上端６ａｌは
少な（ともカーカス４の１）１返し部４ａの上端４ｂあ
るいはコード補強ＪＦ４５の」二輪５ａのいずれか高い
ものよりも上方まで延びζいる。The high elasticity rubber layer 6a has a complex modulus of 1? , is 250 kg
f/- or more, and the JI3 hardness is in the range of 75' to 95°, and the upper end 6al is made of a rubber having a JI3 hardness in the range of 75' to 95°, and the upper end 6al of the carcass 4 is formed by the upper end 4b of the turned part 4a or the cord reinforcement JF45. It extends above whichever of the two wheels 5a is higher.

他方、前記低弾性ゴム層６ｂは、９Ｍ、素弾性率Ｅが８
０〜２００　Ｋｇｆ　／ｃＪの範囲で、また、Ｊ　Ｉ　
Ｓ硬度５０°〜８０°の範囲のゴムからなり、少なくと
も前記高弾性ゴム層６ａに比して）！（弾性率であり、
又その高さｈは、上端６ｂｌが、ビー１′底部からトレ
ッド部上面に至るタイヤの断面＋１１１さの２０％〜６
０％の範囲、好ましくは３０〜４０％の範囲に位置しう
るように設定される。On the other hand, the low elasticity rubber layer 6b has an elementary elastic modulus of 9M and an elementary elastic modulus of 8.
In the range of 0 to 200 Kgf/cJ, also J I
(S made of rubber with hardness in the range of 50° to 80°, at least compared to the high elasticity rubber layer 6a)! (The elastic modulus is
The height h is such that the upper end 6bl is 20% to 6% of the tire cross section +111 length from the bottom of the bee 1' to the top surface of the tread part.
It is set so that it can be located in the range of 0%, preferably in the range of 30 to 40%.

前記保護Ｒ８は、コード？Ｉｌｉ強層５の内外の上端５
ａ、５ｂの部分と、前記追加補強層７とを被覆する保護
層部９．１０．１１を具えている。Is the protection R8 a code? Upper and outer ends of Ili stratum 5
A protective layer portion 9.10.11 is provided to cover portions a and 5b and the additional reinforcing layer 7.

保ｍ＊Ｔ￥４８は天然ゴム、イソプレンゴム、ブタジ＼
エンゴム、スチレンブタジェンゴム等のゴム成分中で接
着処理を施した、ビニロン、レーコン、ポリエステル、
ナイロン、アラミド専有ａ繊維又はガラス、スチールコ
ード等の無機繊維であって、１デニ一ル以上のものが０
．１〜３０頗の長さに切断された短繊維を、ゴム成分１
００部に対して１０〜１−００部混合分散し、ヤング率
が°１０〜１０’ｋｇ／ｃＪ程度の範囲の短繊維混入ゴ
ムを用いて形成される。Hom*T￥48 is natural rubber, isoprene rubber, butaji＼
Vinylon, Raycon, polyester, adhesive treated in rubber components such as en-rubber, styrene-butadiene rubber, etc.
Inorganic fibers such as nylon, aramid proprietary a fibers, glass, steel cords, etc. with a denier of 1 or more are 0
．． Short fibers cut into lengths of 1 to 30 mm are mixed with rubber component 1.
It is formed by mixing and dispersing 10 to 1-00 parts of rubber to 100 parts, and using short fiber-containing rubber having a Young's modulus of about 10 to 10' kg/cJ.

コード補強層５のビード部外側の上端５ａに配置される
保護層部９は、ビード底部近傍からビードエーペックス
６の上端６’ｂｌ近傍までのび、比較的薄く、例えば肉
厚が０．４１〜１０龍の範囲である。また保護層部９の
下端９ａから追加補強層７の下端７ｂまでの距離ａは、
該領域での歪を緩和するため、１０ｍ程度以上あること
が望ましい。The protective layer portion 9 disposed at the upper end 5a of the outside of the bead portion of the cord reinforcing layer 5 extends from the vicinity of the bead bottom to the vicinity of the upper end 6'bl of the bead apex 6, and is relatively thin, for example, with a wall thickness of 0.41 to 10 mm. This is the range of dragons. Further, the distance a from the lower end 9a of the protective layer portion 9 to the lower end 7b of the additional reinforcing layer 7 is:
In order to alleviate strain in this region, it is desirable that the length be about 10 m or more.

又保護層部１０ば、ビードエーペックス６と追加補強層
７０間に形成され、追加？ｉｌｉ　＋１！屑７の上端７
ａを被覆でき、又その上端１　’Ｏａはビードエーペッ
クスの上端６ｂｌとはば一致する。又ぞの下端１０ｂは
コード補強層５の上端５ａ近傍に位置している。Further, a protective layer portion 10 is formed between the bead apex 6 and the additional reinforcing layer 70, and is an additional reinforcing layer 70. ili +1! Top end 7 of scrap 7
a can be covered, and its upper end 1'Oa coincides with the upper end 6bl of the bead apex. The lower end 10b of the groove is located near the upper end 5a of the cord reinforcing layer 5.

保護層部９．１０は一体となゲζコード補強層５の上端
５ａ及び追加補’ｊ！１１ＪＲ７のＪ［ｌ　７　ａ　ｔ
ｌ））！覆、保護し、これらの部分において生じがＩ）
な応力集中を分散、緩和する。The protective layer portions 9 and 10 are integrally formed with the upper end 5a of the ζ cord reinforcing layer 5 and the additional supplementary layer 5! 11JR7's J [l 7 a t
l))! I)
Disperses and relieves stress concentration.

また保護層部１１は、コード補’１ｊｌｌＦ４５のビー
ド部内側上端５ｂを被覆し、そのゴム厚さは０．４〜５
難の範囲で、はぼ均一厚さのシートとじて構成されてい
る。Further, the protective layer portion 11 covers the inner upper end 5b of the bead portion of the cord supplementary '1jllF45, and its rubber thickness is 0.4 to 5.
To the extent possible, it is constructed as a sheet of almost uniform thickness.

なお複素弾性率は、株式会社胃元製作所製の粘弾性スペ
クトロメータを使用し、温度７０″Ｃで初期歪ｌＯ％、
周波数１０１１ｚ、１辰’Ｉｒ１ｓ　２９１ｉ　テ＠　
４　ｍ×長さ３０　＋ｕ　Ｘ　２　ａｓの試料片を用い
て測定したものである。The complex modulus of elasticity was measured using a viscoelasticity spectrometer manufactured by Sugamoto Seisakusho Co., Ltd., with an initial strain of 1O% at a temperature of 70"C,
Frequency 1011z, 1 辰'Ir1s 291i Te@
The measurement was performed using a sample piece of 4 m x length 30 + u x 2 as.

然して重１ｉｉ重用タイヤ１ば、追加補強層７がカーカ
ス４の内側に設けられ、カーカス４を補強するとともに
、追加補強Ｒ７は、その上端７ａをビード部の歪の小さ
い部分位置させることができ、剥離の減少に役立つ。又
追加補強Ｎ７はカーカス４の」二輪４ｂをこえ延設され
、上端４ｂでの歪を分担し、この部分での層間剥離を防
ぐ一方、保護ＩＦＪ８は、追加補強層７の上端７ａ、カ
ーカス４の上端４ｂ又コ一ド補強層５の上端５ｂ部分で
の歪を漸減して剥離を防止できる。However, in the heavy-duty tire 1, an additional reinforcing layer 7 is provided inside the carcass 4 to reinforce the carcass 4, and the upper end 7a of the additional reinforcing layer R7 can be located in a part of the bead where distortion is small, Helps reduce peeling. Further, the additional reinforcement N7 extends beyond the two wheels 4b of the carcass 4 to share the strain at the upper end 4b and prevent delamination in this area, while the protective IFJ8 extends over the upper end 7a of the additional reinforcement layer 7 and the carcass 4. Peeling can be prevented by gradually reducing strain at the upper end 4b or at the upper end 5b portion of the cord reinforcing layer 5.

紙上のごとく本発明の重荷重用ラジアルタイヤは、カー
カスの折返し部にコード？ｉｌｉ強層を配置したビード
構造において、ビードエーペックスを硬軟の２層とし、
かつ追加補強層及び保護層を前記のごとく構成したため
、折返し部あるいはコード？１１強層の上端部における
応力集中が緩和され、ゴムとの剥６１１が効果的に防止
でき、その耐久性を大中に向上させうる。As shown on paper, the heavy-duty radial tire of the present invention has a cord on the folded part of the carcass. In the bead structure with ili strong layer, the bead apex has two hard and soft layers,
And since the additional reinforcing layer and protective layer are configured as described above, the folded part or cord? Stress concentration at the upper end of the No. 11 strong layer is alleviated, and peeling 611 from the rubber can be effectively prevented, and its durability can be greatly improved.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本為明の一実゛施例を示す、ビード部の断面図
である。 ２ニスチールコード、３−　ビードコア、４−カーカス
、　４ａ−折返し部、 ５−コード補強ＩＮ、 ６・−ビードエーペックス、 ７−・・追加補強層、　８−保護層、 ９．１０．１１−保護層部。 特許出願人　住友二ｆムに：’５株ｊ、ｃ会社代理人　
弁理士　苗　４４　正FIG. 1 is a sectional view of a bead portion showing one embodiment of the present invention. 2 Steel cord, 3- Bead core, 4- Carcass, 4a- Turned part, 5- Cord reinforcement IN, 6-- Bead apex, 7- Additional reinforcement layer, 8- Protective layer, 9.10.11- Protection Layer section. Patent applicant Sumitomo Nifum: '5 shares J, C company agent
Patent Attorney Tadashi Nae 44

Claims (1)

【特許請求の範囲】[Claims] （１）　スチールコードがラジアル方向に配列されかつ
その両端をビートコアのまわりで内側から外側に折返し
たカーカスと、該カーカスのビード部外側に隣接して配
置されるコード補強層と、前記カーカスとその折返し部
あるいはコード補強層とにより囲まれる領域でビードコ
アからサイドウオール方向に延びるビードエーペックス
と、前記折返し部又はコード補強層の上端部を＃！復す
る追加補強層と、前記コード補強層のビード部内側及び
外側の雨上端部を被覆するとともに前記ビードエーペッ
クスのビード部外側と追加補強ＩＨの上端部との間にも
挿着される短ｌｌｌ１維混入ゴムからなる保護層とを具
え、かつ前記ビードエーペックスは、タイヤ内側に配す
る先細りの高弾性ゴム層と、高弾性ゴムの外側に隣接し
て配置した低弾性ゴム層との２Ｉｗ体からなることを特
徴とする７１１荷重用ラジアルタイヤ。(1) A carcass in which steel cords are arranged in the radial direction and both ends of which are folded around a bead core from the inside to the outside; a cord reinforcing layer disposed adjacent to the outside of the bead portion of the carcass; A bead apex extending from the bead core in the sidewall direction in a region surrounded by the folded part or the cord reinforcing layer and the upper end of the folded part or the cord reinforcing layer. a short lll1 which covers the inner and outer upper ends of the bead of the cord reinforcing layer and is also inserted between the outer side of the bead of the bead apex and the upper end of the additional reinforcement IH; and a protective layer made of fiber-containing rubber, and the bead apex is made of a 2Iw body consisting of a tapered high-elasticity rubber layer arranged inside the tire and a low-elasticity rubber layer arranged adjacent to the outside of the high-elasticity rubber. A 711 load radial tire characterized by:
JP19679183A 1983-10-19 1983-10-19 Radial tires for heavy loads Expired - Lifetime JPH0617082B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19679183A JPH0617082B2 (en) 1983-10-19 1983-10-19 Radial tires for heavy loads

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19679183A JPH0617082B2 (en) 1983-10-19 1983-10-19 Radial tires for heavy loads

Publications (2)

Publication Number Publication Date
JPS6088612A true JPS6088612A (en) 1985-05-18
JPH0617082B2 JPH0617082B2 (en) 1994-03-09

Family

ID=16363702

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19679183A Expired - Lifetime JPH0617082B2 (en) 1983-10-19 1983-10-19 Radial tires for heavy loads

Country Status (1)

Country Link
JP (1) JPH0617082B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6092905A (en) * 1983-10-27 1985-05-24 Sumitomo Rubber Ind Ltd Radial tire for heavy load
JPS61275010A (en) * 1985-05-29 1986-12-05 Sumitomo Rubber Ind Ltd Pneumatic radial tire for heavy-load use
JP2002178724A (en) * 2000-12-18 2002-06-26 Sumitomo Rubber Ind Ltd Tire for heavy load
JP2007161067A (en) * 2005-12-13 2007-06-28 Sumitomo Rubber Ind Ltd Run flat tire
EP2058146A1 (en) * 2007-11-07 2009-05-13 The Goodyear Tire & Rubber Company Pneumatic tire
CN102616091A (en) * 2011-01-26 2012-08-01 东洋橡胶工业株式会社 Pneumatic radial tire
CN107627790A (en) * 2017-10-16 2018-01-26 中策橡胶集团有限公司 A kind of all-steel radial tyre for intersecting built-in steel wire reinforcement tyre bead

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6092905A (en) * 1983-10-27 1985-05-24 Sumitomo Rubber Ind Ltd Radial tire for heavy load
JPS61275010A (en) * 1985-05-29 1986-12-05 Sumitomo Rubber Ind Ltd Pneumatic radial tire for heavy-load use
JP2002178724A (en) * 2000-12-18 2002-06-26 Sumitomo Rubber Ind Ltd Tire for heavy load
JP2007161067A (en) * 2005-12-13 2007-06-28 Sumitomo Rubber Ind Ltd Run flat tire
JP4653651B2 (en) * 2005-12-13 2011-03-16 住友ゴム工業株式会社 Run flat tire
EP2058146A1 (en) * 2007-11-07 2009-05-13 The Goodyear Tire & Rubber Company Pneumatic tire
US8695666B2 (en) 2007-11-07 2014-04-15 The Goodyear Tire & Rubber Company Pneumatic tire
CN102616091A (en) * 2011-01-26 2012-08-01 东洋橡胶工业株式会社 Pneumatic radial tire
JP2012153265A (en) * 2011-01-26 2012-08-16 Toyo Tire & Rubber Co Ltd Pneumatic radial tire
US8701729B2 (en) 2011-01-26 2014-04-22 Toyo Tire & Rubber Co., Ltd. Pneumatic radial tire
CN107627790A (en) * 2017-10-16 2018-01-26 中策橡胶集团有限公司 A kind of all-steel radial tyre for intersecting built-in steel wire reinforcement tyre bead
CN107627790B (en) * 2017-10-16 2023-08-18 中策橡胶集团股份有限公司 All-steel radial tire with crossed built-in steel wire reinforced tire bead

Also Published As

Publication number Publication date
JPH0617082B2 (en) 1994-03-09

Similar Documents

Publication Publication Date Title
US5820711A (en) Pneumatic radial tire including rubber spacer between axially adjacent carcass cords
JP2870703B2 (en) Pneumatic tire
JP2001522749A (en) Tire crown reinforcement
JPS6088612A (en) Radial tire for heavy load
JPH0858310A (en) Radial tire for heavy load
JP2951667B2 (en) Pneumatic radial tire
JP2851010B2 (en) Pneumatic tire
JPH01262205A (en) Radial tire
JPS6088610A (en) Radial tire for heavy load
JPS6088611A (en) Radial tire for heavy load
US6276418B1 (en) Pneumatic radial tire with turned down carcass layer
JPS606803B2 (en) pneumatic radial tire
JPH11129704A (en) Pneumatic tire for passenger car
JPS63203403A (en) Heavy-duty radial tire
JPH0550813A (en) Pneumatic radial tire
JPH0583402B2 (en)
JPH0441083B2 (en)
JPH03227705A (en) Radial tire for high load
JP2000190714A (en) Pneumatic tire
JPH02225112A (en) Tire
JPH07164813A (en) Pneumatic tire for heavy load
JPS5975806A (en) Radial tire
JP2953533B2 (en) Pneumatic radial tire
JPS6092905A (en) Radial tire for heavy load
JPH06255322A (en) Pneumatic radial tire