JP2684202B2 - Car tires - Google Patents
Car tiresInfo
- Publication number
- JP2684202B2 JP2684202B2 JP63274592A JP27459288A JP2684202B2 JP 2684202 B2 JP2684202 B2 JP 2684202B2 JP 63274592 A JP63274592 A JP 63274592A JP 27459288 A JP27459288 A JP 27459288A JP 2684202 B2 JP2684202 B2 JP 2684202B2
- Authority
- JP
- Japan
- Prior art keywords
- rim
- tire
- bead
- rotation axis
- rim assembly
- 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.)
- Expired - Lifetime
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
- B60C15/02—Seating or securing beads on rims
- B60C15/024—Bead contour, e.g. lips, grooves, or ribs
-
- 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
- B60C15/04—Bead cores
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、自動車用のタイヤに関し、特にタイヤの回
転軸線を巡るように配置されたビードコアを含む自動車
用タイヤに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile tire, and more particularly to an automobile tire including a bead core arranged so as to surround a rotation axis of the tire.
（従来の技術） リムに組み付けて使用する乗用車用タイヤの１つとし
て、ビードコアを構成する複数のビードワイヤを、ビー
ドコアの仮想的な内面形状が筒状となるように配置した
ものがある。このタイヤにおいて、ビードコアは、タイ
ヤの回転軸線に沿う方向へ隔てられた各部位の内径寸法
が同じになるように、タイヤの回転軸線の周りに配置さ
れている。(Prior Art) As one of passenger car tires to be mounted on a rim for use, there is a tire in which a plurality of bead wires forming a bead core are arranged so that a virtual inner surface shape of the bead core is cylindrical. In this tire, the bead core is arranged around the rotation axis of the tire such that the inner diameters of the respective parts separated in the direction along the rotation axis of the tire are the same.
しかし、このようなタイヤでは、ビードコアと、リム
の外周面に接触するビードベース面との間のゴム部分の
圧縮応力が小さくなるように、ビード部の寸法および形
状を選択すると、タイヤをリムに組み付ける作業すなわ
ちリム組が容易になる反面、ビードベース面とリムとの
間の摩擦力が小さくなるから、車両のコーナリング時等
にタイヤに作用する外力によってタイヤがリムから外れ
やすくなる。これに対し、前記ゴム部分の圧縮応力が大
きくなるように、ビード部の寸法および形状を選択する
と、タイヤがリムから外れ難くなる反面、リム組が容易
でない。However, in such a tire, when the size and shape of the bead portion are selected so that the compressive stress of the rubber portion between the bead core and the bead base surface that contacts the outer peripheral surface of the rim is small, the tire is attached to the rim. Although the assembling work, that is, the rim assembly is facilitated, the frictional force between the bead base surface and the rim is reduced, so that the tire easily comes off the rim due to an external force acting on the tire during cornering of the vehicle. On the other hand, if the size and shape of the bead portion are selected so that the compressive stress of the rubber portion becomes large, it becomes difficult for the tire to come off the rim, but it is not easy to rim the tire.
（発明が解決しようとする課題） このようなことから、従来の乗用車用タイヤは、車両
の走行時にタイヤがリムから外れないように、リム組の
容易性を犠牲にしていた。(Problems to be Solved by the Invention) From the above, the conventional passenger car tire sacrifices the ease of rim assembly so that the tire does not come off from the rim when the vehicle is running.
本発明は、リムから外れにくいにもかかわらず、リム
組が容易なタイヤを提供することを目的とする。An object of the present invention is to provide a tire that is easy to be assembled into a rim even though it is hard to come off from the rim.
（解決手段、作用、効果） 本発明の、ビード部に配設された環状のビードコアを
備える自動車用タイヤは、前記ビードコアが、タイヤの
回転軸線の周りの仮想的な内面を互いに共同して規定す
る複数のビードワイヤであって前記内面の直径寸法が前
記回転軸線の方向におけるタイヤ外側の第１の部位から
これと反対の側の第２の部位に向けて漸次減少するよう
に配置された複数のビードワイヤを含み、前記ビード部
は、リム組前のビードベース面と前記第１の部位に配置
されたビードワイヤとの間の最短距離をToとし、リム組
前の前記リムと前記第２の部位に配置されたビードワイ
ヤとの間の最短距離をTiとし、リム組後空気充填前の前
記リムと前記第１の部位に配置されたビードワイヤとの
間の最短距離をSoとし、リム組後空気充填前の前記リム
と前記第２の部位に配置されたビードワイヤとの間の最
短距離をSiとし、また前記最短距離のそれぞれを前記回
転軸線と直交する方向に測定したときの値としたとき、 0.65＜So/To＜1.00 0.50＜Si/Ti＜0.65 となる形状を有する。(Solution, Action, and Effect) According to the present invention, in a vehicle tire including an annular bead core arranged in a bead portion, the bead core jointly defines virtual inner surfaces around a rotation axis of the tire. A plurality of bead wires that are arranged such that the diameter dimension of the inner surface gradually decreases from the first portion outside the tire in the direction of the rotation axis toward the second portion on the opposite side. A bead wire is included, and the bead portion has a shortest distance between the bead base surface before the rim assembly and the bead wire arranged in the first portion as To, and the bead portion is located between the rim before the rim assembly and the second portion. The shortest distance between the bead wire arranged is Ti, the shortest distance between the rim after rim assembly and before air filling and the bead wire arranged at the first portion is So, and after rim assembly before air filling. Of the above When the shortest distance between the rim and the bead wire arranged at the second portion is Si and each of the shortest distances is a value measured in a direction orthogonal to the rotation axis, 0.65 <So / It has a shape such that To <1.00 0.50 <Si / Ti <0.65.
第１の部位の側のゴム部分の圧縮応力は、リム組の作
業性に大きく作用する。これに対し、第２の部位の側の
ゴム部分の圧縮応力は、タイヤのリム外れに大きく作用
する。本発明のタイヤによれば、第１の部位の側のゴム
部分の圧縮応力が小さいのに対し、第２の部位の側のゴ
ム部分圧縮応力が大きいから、リムが容易になるととも
に、車両の走行時にリムから外れにくい。The compressive stress of the rubber portion on the side of the first portion largely affects the workability of the rim assembly. On the other hand, the compressive stress of the rubber portion on the side of the second portion largely acts on the rim detachment of the tire. According to the tire of the present invention, the compression stress of the rubber portion on the side of the first portion is small, while the compression stress of the rubber portion on the side of the second portion is large. Hard to come off from the rim when driving.
これに対し、第１の部位に配置されたビードワイヤの
内径をDoとし、第２の部位に配置されたビードワイヤの
内径をDiとしたとき、DoがDi以下になると、リム組が困
難になるとともに、タイヤがリムから外れやすくなる
（実験例のタイヤE,G）。So/Toが0.65以下になると、リ
ム組が困難になる（実験例のタイヤD,G）。So/Toが1.00
以上になると、タイヤがリムから外れやすくなる。Si/T
iが0.50以下になると、リム組が困難になる（実験例の
タイヤＣ）。Si/Tiが0.65以上になると、タイヤがリム
から外れやすくなる（実験例のタイヤB,F）。On the other hand, when the inner diameter of the bead wire arranged in the first part is Do and the inner diameter of the bead wire arranged in the second part is Di, when Do becomes Di or less, the rim assembly becomes difficult and , It is easy for the tire to come off the rim (tires E and G in the experimental example). If the So / To is 0.65 or less, it becomes difficult to set the rim (tires D and G in the experimental example). So / To is 1.00
If it becomes above, a tire will become easy to remove from a rim. Si / T
When i is 0.50 or less, the rim assembly becomes difficult (tire C of the experimental example). When Si / Ti is 0.65 or more, the tire easily comes off the rim (tires B and F in the experimental example).
（実施例） 第１図および第２図を参照するに、本発明に係る乗用
車用ライジアルタイヤ10は、ビード部12にタイヤの回転
軸線と同軸的に配置されたビードコア14を含む。ビード
コア14は、図示の例では、前記回転軸線を含む面内での
ビードコア14の断面形状がほぼ四角形となりかつビード
コア14の仮想的な内面15の形状が筒状となるように配置
された複数のビードワイヤ16を含む。(Embodiment) Referring to FIGS. 1 and 2, a passenger vehicle radial tire 10 according to the present invention includes a bead core 14 in a bead portion 12 arranged coaxially with a rotation axis of the tire. The bead core 14 is, in the illustrated example, a plurality of bead cores 14 arranged so that the cross-sectional shape of the bead core 14 in the plane including the rotation axis is substantially rectangular and the virtual inner surface 15 of the bead core 14 is cylindrical. Includes bead wire 16.
タイヤ10は、ビード部12のビードベース面18がリム20
の外周面22に接触し、ビード部12の外周面24がリム20の
フランジ26に接触するように、リム20に組み付けられ
る。リム20がサイドリングを含むときは、タイヤ10の他
のビード部の外側面は前記サイドリングに接触される。In the tire 10, the bead base surface 18 of the bead portion 12 is the rim 20.
The bead portion 12 is attached to the rim 20 such that the outer peripheral surface 24 of the bead portion 12 comes into contact with the flange 26 of the rim 20. When the rim 20 includes a side ring, the outer surface of the other bead portion of the tire 10 contacts the side ring.
ビードコア14の前記内面は、前記回転軸線の方向にお
ける外側の第１の部位28の内径をDoとし、第１の部位28
からこれと反対の側の第２の部位30の内径をDiとしたと
き、DoがDiより大きくなるように、前記内面の内径が第
１の部位28から第２の部位30に向けて漸次減少する形状
を有する。In the inner surface of the bead core 14, the inner diameter of the outer first portion 28 in the direction of the rotation axis is Do, and the first portion 28
Therefore, when the inner diameter of the second portion 30 on the opposite side is Di, the inner diameter of the inner surface gradually decreases from the first portion 28 toward the second portion 30 so that Do becomes larger than Di. Has a shape to
ビード部12は、リム組前のビードベース面18と第１の
部位28に配置されたビードワイヤとの間の最短距離をTo
とし、リム組前のビードベース面18と第２の部位30に配
置されたビードワイヤとの間の最短距離をTiとし、リム
組後内圧充填前のリム20と第１の部位28に配置されたビ
ードワイヤとの間の最短距離をSoとし、リム組後内圧充
填前のリム20と第２の部位30に配置されたビードワイヤ
との間の最短距離をSiとし、また前記最短距離のそれぞ
れを前記回転軸線と直交する方向に測定したときの値と
したとき、 0.65＜So/To＜1.00 0.50＜Si/Ti＜0.65 となる形状を有する。The bead portion 12 measures the shortest distance between the bead base surface 18 before the rim assembly and the bead wire arranged on the first portion 28.
And the shortest distance between the bead base surface 18 before the rim assembly and the bead wire arranged at the second portion 30 is Ti, and it is arranged at the rim 20 and the first portion 28 before the internal pressure filling after the rim assembly. The shortest distance to the bead wire is So, the shortest distance between the rim 20 after the rim assembly and before the internal pressure filling and the bead wire arranged in the second portion 30 is Si, and each of the shortest distances is the rotation. It has a shape such that 0.65 <So / To <1.00 0.50 <Si / Ti <0.65, when the value is measured in the direction orthogonal to the axis.
Ti、To、SiおよびSoは、Ti＜Toとし、So/To＜0.80と
することがより好ましい。Ti, To, Si and So are more preferably Ti <To and So / To <0.80.
（実験例） 前記したDo,Di,To,Ti,So,Siの値を表１に示すように
選択した７種のタイヤA,B,C,D,E,FおよびＧを製作し、
これらのリム組の容易性およびリムからの外れにくさを
比較した。(Experimental Example) Seven kinds of tires A, B, C, D, E, F, and G having the values of Do, Di, To, Ti, So, and Si selected as shown in Table 1 were manufactured,
The ease of these rim sets and the resistance to removal from the rim were compared.
各タイヤは、スチールコード層からなる２層のベルト
と、ポリエステルコードからなる１層のカーカス層を含
むラジアルタイヤである。タイヤサイズは155SR13であ
り、リムサイズは5J×13（交称329φ）であった。Each tire is a radial tire including two belts made of steel cord layers and one carcass layer made of polyester cords. The tire size was 155 SR13 and the rim size was 5J x 13 (synonym 329φ).
リム組の容易性は、タイヤをチューブとともにリムに
組み付けた後、チューブに空気を充填し、タイヤがリム
に完全に嵌合したときのタイヤ内圧を嵌合圧力として示
した。嵌合圧力が小さいほど、リム組が容易である。嵌
合圧力は、チューブに空気を充填しつつ、タイヤがリム
に完全に嵌合したことを音と目視とにより判断し、その
ときのタイヤ内圧とした。The ease of rim assembly was shown as the fitting pressure, which was the tire internal pressure when the tire was assembled to the rim together with the tube, then the tube was filled with air, and the tire was completely fitted to the rim. The smaller the fitting pressure, the easier the rim assembly. The fitting pressure was determined as the tire internal pressure at that time by judging that the tire was completely fitted to the rim while filling the tube with air by sound and visual inspection.
リムからの外れにくさは、日本工業規格D4230により
定められた試験法に準拠して測定したリム外し抗力によ
り示した。この抗力が大きいほど、タイヤはリムから外
れにくい。The resistance to removal from the rim was indicated by the rim removal resistance measured according to the test method defined by Japanese Industrial Standard D4230. The greater this drag, the less likely the tire will come off the rim.
表１における、満足する条件Ｉ、II、III、IVは、対
応する記号が記されたタイヤが次の対応する条件を満足
していることを意味する。Satisfied conditions I, II, III and IV in Table 1 mean that the tire marked with the corresponding symbol satisfies the following corresponding conditions.
Ｉ＝Di＜Do II＝0.65＜So/To＜1.00 III＝0.50＜Si/Ti IV＝Si＜Ti＜0.65 なお、表１において、嵌合圧力の単位はkgf/cm2であ
り、リム外し抗力の単位はkgfである。I = Di <Do II = 0.65 <So / To <1.00 III = 0.50 <Si / Ti IV = Si <Ti <0.65 In Table 1, the unit of fitting pressure is kgf / cm 2 , and the rim removal resistance is The unit of is kgf.
表１において、タイヤＡは、本発明に係るタイヤであ
り、タイヤＧは従来のタイヤである。本発明に係るタイ
ヤＡによれば、従来のタイヤＧに比べ、嵌合圧力が小さ
いにもかかわらず、リム外し抗力が大きい。このことか
ら、タイヤＡは、タイヤＧに比べ、リム組が容易である
にもかかわらず、リムから外れにくい。In Table 1, tire A is a tire according to the present invention, and tire G is a conventional tire. According to the tire A of the present invention, compared with the conventional tire G, although the fitting pressure is small, the rim removal resistance is large. From this, the tire A is less likely to come off the rim than the tire G, although the rim assembly is easier.
タイヤＢは、Si/Tiが0.60より大きいため、従来のタ
イヤＧに比べ、嵌合圧力が小さいが、リム外し抗力が小
さくなる、このため、リム組は容易である反面、リムか
ら外れやすい。Since the tire B has Si / Ti of more than 0.60, the fitting pressure is smaller than that of the conventional tire G, but the rim removal resistance is small. Therefore, the rim assembly is easy, but the tire B is easily removed from the rim.
タイヤＣは、So/Toが0.50より小さいから、従来のタ
イヤＧに比べ、リム外し抗力が大きいが、嵌合圧力が大
きくなる。このため、リムから外れにくい反面、リム組
が困難である。Since the tire C has So / To smaller than 0.50, the rim removal resistance is larger than the conventional tire G, but the fitting pressure is larger. For this reason, while it is difficult to remove from the rim, it is difficult to assemble the rim.
タイヤＤは、So/Toが0.65より小さいから、従来のタ
イヤＧに比べ、リム外し抗力が大きいが、嵌合圧力が大
きくなる。このため、リムから外れにくい反面、リム組
が困難である。Since the tire D has So / To of less than 0.65, the rim removal resistance is larger than the conventional tire G, but the fitting pressure is larger. For this reason, while it is difficult to remove from the rim, it is difficult to assemble the rim.
タイヤＥは、DiがDoより大きいから、従来のタイヤＧ
に比べ、りム外し抗力が小さく、したがってリムから外
れやすい。For tire E, Di is larger than Do, so conventional tire G
Compared to, the removal force of the rim is small and therefore it is easy to remove from the rim.
タイヤＦは、Si/Tiが0.65より大きいから、従来のタ
イヤＧに比べ、嵌合圧力が小さいが、リム外し抗力が小
さくなる。このため、リム組が容易になる反面、リムか
ら外れやすい。Since the tire F has Si / Ti of more than 0.65, the fitting pressure is smaller than that of the conventional tire G, but the rim removal resistance is small. Therefore, while the rim assembly is easy, the rim is easily detached from the rim.
第１図は本発明の係るタイヤの一実施例を示すビード部
近傍の断面図、第２図は第１図のタイヤをリムに組み付
けたときのビード部近傍の断面図である。 10:タイヤ、 12:ビード部、 14:ビードコア、 15:ビードコアの仮想的な内面、 16:ビードワイヤ、 18:ビードベース、 20:リム、 28:第１の部位、 30:第２の部位。FIG. 1 is a sectional view of the vicinity of a bead portion showing an embodiment of a tire according to the present invention, and FIG. 2 is a sectional view of the vicinity of the bead portion when the tire of FIG. 1 is mounted on a rim. 10: tire, 12: bead part, 14: bead core, 15: virtual inner surface of bead core, 16: bead wire, 18: bead base, 20: rim, 28: first part, 30: second part.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭59−124415（ＪＰ，Ａ) 特開 昭57−151406（ＪＰ，Ａ) 特開 昭54−108302（ＪＰ，Ａ) 特開 昭58−39505（ＪＰ，Ａ) 特開 昭59−186705（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-59-124415 (JP, A) JP-A-57-151406 (JP, A) JP-A-54-108302 (JP, A) JP-A-58- 39505 (JP, A) JP 59-186705 (JP, A)
Claims (1)
備える自動車用タイヤにおいて、前記ビードコアは、タ
イヤの回転軸線の周りの仮想的な内面を互いに共同して
規定する複数のビードワイヤであって前記内面の直径寸
法が前記回転軸線の方向におけるタイヤ外側の第１の部
位からこれと反対の側の第２の部位に向けて漸次減少す
るように配置された複数のビードワイヤを含み、前記ビ
ード部は、リム組前のビードベース面と前記第１の部位
に配置されたビードワイヤとの間の最短距離をToとし、
リム組前の前記ビードベース面と前記第２の部位に配置
されたビードワイヤとの間の最短距離をTiとし、リム組
後空気充填前の前記リムと前記第１の部位に配置された
ビードワイヤとの間の最短距離をSoとし、リム組後空気
充填前の前記リムと前記第２の部位に配置されたビード
ワイヤとの間の最短距離をSiとし、また前記最短距離の
それぞれを前記回転軸線と直交する方向に測定したとき
の値としたとき、 0.65＜So/To＜1.00 0.50＜Si/Ti＜0.65 となる形状を有する、自動車専用タイヤ。1. A vehicle tire including an annular beat core arranged in a bead portion, wherein the bead core is a plurality of bead wires that jointly define a virtual inner surface around a rotation axis of the tire. The bead portion includes a plurality of bead wires arranged so that a diameter dimension of the inner surface gradually decreases from a first portion outside the tire in a direction of the rotation axis toward a second portion on an opposite side thereof. , To is the shortest distance between the bead base surface before the rim assembly and the bead wire arranged at the first portion,
The shortest distance between the bead base surface before the rim assembly and the bead wire arranged at the second portion is Ti, and the rim before the air filling after the rim assembly and the bead wire arranged at the first portion, Is So, the shortest distance between the rim after the rim assembly and before air filling and the bead wire arranged in the second portion is Si, and each of the shortest distances is the rotation axis. A tire for automobiles having a shape of 0.65 <So / To <1.00 0.50 <Si / Ti <0.65 when measured in the orthogonal direction.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63274592A JP2684202B2 (en) | 1988-11-01 | 1988-11-01 | Car tires |
| DE19893936231 DE3936231A1 (en) | 1988-11-01 | 1989-10-31 | Pneumatic tyre - with tyre bead wires in rhomboidal shape of specified contours |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63274592A JP2684202B2 (en) | 1988-11-01 | 1988-11-01 | Car tires |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02124303A JPH02124303A (en) | 1990-05-11 |
| JP2684202B2 true JP2684202B2 (en) | 1997-12-03 |
Family
ID=17543888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63274592A Expired - Lifetime JP2684202B2 (en) | 1988-11-01 | 1988-11-01 | Car tires |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2684202B2 (en) |
| DE (1) | DE3936231A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220305849A1 (en) * | 2021-03-25 | 2022-09-29 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5010938A (en) * | 1990-03-30 | 1991-04-30 | The Goodyear Tire & Rubber Company | Tire incorporating a bead ring comprising round wire disposed in the shape of a parallelogram |
| JPH04283112A (en) * | 1991-03-08 | 1992-10-08 | Sumitomo Rubber Ind Ltd | Tire |
| JP4171542B2 (en) * | 1998-08-24 | 2008-10-22 | 株式会社ブリヂストン | Heavy duty pneumatic radial tires |
| WO2000026044A1 (en) * | 1998-11-02 | 2000-05-11 | The Goodyear Tire & Rubber Company | Pneumatic tire having specified bead structure |
| JP6662367B2 (en) * | 2017-12-01 | 2020-03-11 | 横浜ゴム株式会社 | Pneumatic tire |
| JP2019001131A (en) * | 2017-06-19 | 2019-01-10 | 株式会社ブリヂストン | Method for manufacturing pneumatic tire, and pneumatic tire |
| JP6662366B2 (en) * | 2017-12-01 | 2020-03-11 | 横浜ゴム株式会社 | Pneumatic tire |
| JP6834922B2 (en) | 2017-12-01 | 2021-02-24 | 横浜ゴム株式会社 | Pneumatic tires |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE860151C (en) * | 1943-12-27 | 1952-12-18 | Continental Gummi Werke Ag | Steel cable tires, especially for vehicles |
| DE7007995U (en) * | 1969-06-05 | |||
| JPS54108302A (en) * | 1978-02-14 | 1979-08-24 | Sumitomo Rubber Ind | Tubeless tire for autobicycle |
| JPS57151406A (en) * | 1981-03-14 | 1982-09-18 | Sumitomo Rubber Ind Ltd | Tyre having improved bead |
| DE3132941A1 (en) * | 1981-08-20 | 1983-03-03 | Bayer Ag, 5090 Leverkusen | HIGHLY DURABLE VEHICLE TIRE |
| JPS59124415A (en) * | 1982-12-30 | 1984-07-18 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
-
1988
- 1988-11-01 JP JP63274592A patent/JP2684202B2/en not_active Expired - Lifetime
-
1989
- 1989-10-31 DE DE19893936231 patent/DE3936231A1/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220305849A1 (en) * | 2021-03-25 | 2022-09-29 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire |
| US11752808B2 (en) * | 2021-03-25 | 2023-09-12 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02124303A (en) | 1990-05-11 |
| DE3936231A1 (en) | 1990-05-03 |
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