JP2000001110A - Pneumatic tire - Google Patents
Pneumatic tireInfo
- Publication number
- JP2000001110A JP2000001110A JP10169712A JP16971298A JP2000001110A JP 2000001110 A JP2000001110 A JP 2000001110A JP 10169712 A JP10169712 A JP 10169712A JP 16971298 A JP16971298 A JP 16971298A JP 2000001110 A JP2000001110 A JP 2000001110A
- Authority
- JP
- Japan
- Prior art keywords
- tire
- bead
- rubber layer
- reinforcing rubber
- pneumatic 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、高速走行時の旋回
性能を向上させた空気入りタイヤに関し、特にレース用
として好適な空気入りタイヤに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pneumatic tire having improved turning performance at high speed running, and more particularly to a pneumatic tire suitable for racing.
【０００２】[0002]
【従来の技術】近年、車両の高性能化に伴い高速走行時
のタイヤの旋回性能の一層の向上が要望されている。す
なわち、車両が高速走行しながら旋回するときには旋回
外側のタイヤに過大な横力が作用し、車両外側のサイド
部とビード部がタイヤ内側に倒れ込み、これによって旋
回性能が制限されてしまう。2. Description of the Related Art In recent years, there has been a demand for further improvement of tire turning performance during high-speed running in accordance with high performance of vehicles. That is, when the vehicle turns while traveling at high speed, an excessive lateral force acts on the tire on the outside of the turn, and the side portion and the bead portion on the outside of the vehicle fall down on the inside of the tire, thereby restricting the turning performance.
【０００３】従来、上記のような旋回時のビード部の倒
れ込みを防止して高速走行時の旋回性能を高めるため
に、１本巻きスチールビードコアを使用すると共にビー
ドトウ部にＪＩＳ硬度８０°〜９８°のゴムストックを
配置し、このゴムストックの外表面に有機繊維コードの
チェーファーを配したビード部構造が提案されている
（特開平6-227216号公報) 。Conventionally, a single-wound steel bead core has been used and the bead toe portion has a JIS hardness of 80 ° to 98 ° in order to prevent the bead portion from falling down at the time of turning as described above and improve turning performance at high speed running. (Japanese Patent Laid-Open No. 6-227216) has been proposed in which a rubber stock is disposed and an organic fiber cord chafer is disposed on the outer surface of the rubber stock.
【０００４】しかしながら、このビード部構造では、最
近における一層の高速化に要望されている、例えば半径
１００ｍのコーナーを２００ｋｍ／ｈの速度で走行する
場合においての操縦安定性能の確保は不可能になってい
る。[0004] However, with this bead portion structure, it has become impossible to ensure the steering stability performance when traveling at a speed of 200 km / h, for example, at a corner of a radius of 100 m, which is demanded for a higher speed in recent years. ing.
【０００５】[0005]
【発明が解決しようとする課題】本発明の目的は、半径
１００ｍのコーナーを２００ｋｍ／ｈ以上の高速で旋回
走行するような高速旋回性能の確保を可能にした空気入
りタイヤを提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a pneumatic tire capable of ensuring high-speed turning performance such as turning at a high speed of 200 km / h or more at a corner having a radius of 100 m. .
【０００６】[0006]
【課題を解決するための手段】本発明は、左右一対のビ
ード部のビードコアにカーカス層が装架され、トレッド
部においてカーカス層の外側にベルト層がタイヤ１周に
亘って配置された空気入りタイヤにおいて、前記ビード
部におけるビードトウ部からタイヤ内壁面に沿う領域
に、短繊維強化ゴムからなる補強ゴム層を配設したこと
を特徴とする。According to the present invention, there is provided a pneumatic pneumatic vehicle in which a carcass layer is mounted on a bead core of a pair of right and left bead portions, and a belt layer is disposed around the tire on the tread portion outside the carcass layer. The tire is characterized in that a reinforcing rubber layer made of short fiber reinforced rubber is provided in a region along the tire inner wall surface from the bead toe portion in the bead portion.
【０００７】このように短繊維強化ゴムからなる補強ゴ
ム層を配設したため、半径１００ｍのコーナーを２００
ｋｍ／ｈ以上の高速で旋回走行しても、ビードトウ部の
補強ゴム層が高い圧縮強度を発揮してタイヤサイド部の
大変形を抑制するので、旋回性能を向上させることが可
能となる。[0007] Since the reinforcing rubber layer made of the short fiber reinforced rubber is provided in this manner, a corner having a radius of 100 m is set at 200 mm.
Even when turning at a high speed of km / h or more, the reinforcing rubber layer of the bead toe portion exhibits high compressive strength and suppresses large deformation of the tire side portion, so that turning performance can be improved.
【０００８】[0008]
【発明の実施の形態】図１にレース用タイヤとして本発
明の空気入りタイヤを構成するビード部について、その
片側の子午線方向断面を例示する。図１に示すようなビ
ード部１は左右両側に対をなして設けられ、そこに埋設
されたビードコア２に２枚のカーカス層３1 、３2 が装
架されている。最内カーカス層３1 は、その端部がビー
ドコア２の廻りにタイヤ内側から外側に折り返されて巻
き上げられ、カーカス層３1 の端部はビードフィラー８
の中間部に位置する。一方、最外カーカス層３2 はカー
カス層３1 の巻き上げ部に沿ってその巻き上げ部の外側
に配置され、ビードトウ部４の先端に至っている。トレ
ッド部においてはこれらカーカス層３1 、３2 の外側
に、複数枚のベルト層がタイヤ１周に亘って配置されて
いる（図示せず）。７1 、７2 は有機繊維コードからな
る補強層である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 illustrates a meridian section of one side of a bead portion constituting a pneumatic tire of the present invention as a racing tire. The bead portion 1 as shown in FIG. 1 is provided as a pair on the right and left sides, a bead core 2 embedded therein carcass layer 3 1 of the two, 3 2 are mounted. Innermost carcass layer 3 1, its end is rolled up is folded outward from inside of the tire around the bead core 2, the ends of the carcass layer 3 1 is a bead filler 8
Located in the middle of On the other hand, the outermost carcass layer 3 2 is disposed on the outside of the turned-up portion along the winding portion of the carcass layer 3 1, has led to the tip of the bead toe portion 4. Outside these carcass layers 3 1, 3 2 in a tread portion, a plurality of belt layers are disposed over one round tire (not shown). 7 1 and 7 2 are reinforcing layers made of an organic fiber cord.
【０００９】ビードトウ部４には、ビードコア２のタイ
ヤ軸方向内側域からビードフィラー８に沿って先端に近
い位置まで延長した補強ゴム層６が配設され、その補強
ゴム層６は短繊維５で強化されたゴム（短繊維強化ゴ
ム）から構成されている。短繊維としては、補強性能を
有するものであれば特に限定されるものではなく、例え
ば、ポリエステル繊維、ナイロン繊維、ビニロン繊維、
炭素繊維、ガラス繊維、芳香族ポリアミド繊維等を挙げ
ることができる。この短繊維の長手方向長さは、短かす
ぎても長すぎても好ましくなく、０．２ｍｍ〜６．０ｍ
ｍの範囲が好ましい。また、短繊維の平均直径は、１５
μ以下であることが好ましい。The bead toe portion 4 is provided with a reinforcing rubber layer 6 extending from the inner side of the bead core 2 in the tire axial direction to a position near the tip along the bead filler 8. It is composed of reinforced rubber (short fiber reinforced rubber). The short fiber is not particularly limited as long as it has a reinforcing performance, for example, polyester fiber, nylon fiber, vinylon fiber,
Examples thereof include carbon fibers, glass fibers, and aromatic polyamide fibers. The length in the longitudinal direction of this short fiber is not preferred whether it is too short or too long, and is 0.2 mm to 6.0 m.
The range of m is preferred. The average diameter of the short fibers is 15
It is preferably at most μ.
【００１０】補強ゴム層を形成する短繊維とゴムとの配
合割合は特に限定されるものではないが、好ましくは、
ゴム１００重量部に対し短繊維を５〜３０重量部配合し
たものがよく、必要に応じてカーボンブラック等の配合
剤が配合される。また、補強ゴム層中では、短繊維が主
としてタイヤ半径方向に配向しているのが好ましい。こ
のように配向させることにより、補強ゴム層の圧縮強度
をいっそう高め、曲げ剛性が増大するため、旋回性能を
向上させることができる。補強ゴム層の硬さは、ＪＩＳ
−Ａ硬度で９４〜９９、２０℃での弾性率は５０〜９０
ＭＰａ程度が好ましい。[0010] The mixing ratio of the short fibers and the rubber forming the reinforcing rubber layer is not particularly limited.
It is preferable to blend 5 to 30 parts by weight of short fibers with respect to 100 parts by weight of rubber, and a compounding agent such as carbon black is blended as needed. In the reinforcing rubber layer, the short fibers are preferably oriented mainly in the tire radial direction. By such orientation, the compressive strength of the reinforcing rubber layer is further increased, and the bending rigidity is increased, so that the turning performance can be improved. The hardness of the reinforcing rubber layer is JIS
-A hardness is 94 to 99, elastic modulus at 20 ° C is 50 to 90.
MPa or so is preferable.
【００１１】また、上記補強ゴム層６の大きさとして
は、補強ゴム層６のビードコア内側面からビードトウ部
先端までのタイヤ軸方向幅Ｌ2 が、ビードコア２のタイ
ヤ軸方向最大幅Ｌ1 に対する比Ｌ2 ／Ｌ1 、ビードトウ
部先端部のタイヤ内壁面１０とビードシート１１とのな
す角度θ、補強ゴム層６のリム径相当位置からの高さＨ
の前記最大幅Ｌ1 に対する比Ｈ／Ｌ1 が、それぞれ下記
の関係にあるのがよい。The size of the reinforcing rubber layer 6 is such that the width L 2 in the tire axial direction from the inner surface of the bead core of the reinforcing rubber layer 6 to the tip of the bead toe portion is a ratio to the maximum width L 1 in the tire axial direction of the bead core 2. L 2 / L 1 , the angle θ between the tire inner wall surface 10 at the tip of the bead toe portion and the bead sheet 11, the height H of the reinforcing rubber layer 6 from a position corresponding to the rim diameter.
The maximum width ratio H / L 1 for L 1 is, it is preferable in the following relationship each.
【００１２】０．５≦Ｌ2 ／Ｌ1 ≦１．０ ６０°≦θ １．０＜Ｈ／Ｌ1 Ｌ2 ／Ｌ1 が０．５未満では補強ゴム層（ビードトウ
部）の幅が狭すぎて実質的に旋回性能の向上をはかるこ
とができなくなり、一方、Ｌ2 ／Ｌ1 が１．０を超える
と補強ゴム層（ビードトウ部）の幅が大きくなりすぎて
ビード部とリムとの嵌合性が悪化してしまう。また、角
度θが６０°未満では補強ゴム層６の容量が減少するの
で補強ゴム層６の圧縮強度が小さくなって旋回性能が悪
くなる。θが８０°を超えると補強ゴム層６の容量が大
きくなるので旋回性能の向上は望めない。したがって、
角度θは６０°〜８０°であるのがよい。Ｈ／Ｌ1 が
１．０以下では、補強ゴム層６の容量が減少して補強ゴ
ム層６の圧縮強度が小さくなる。また、２．０を超える
と圧縮強度がほぼ飽和する。したがって、Ｈ／Ｌ1 は、
１．０〜２．０の範囲にするとよい。0.5 ≦ L 2 / L 1 ≦ 1.0 60 ° ≦ θ 1.0 <H / L 1 When L 2 / L 1 is less than 0.5, the width of the reinforcing rubber layer (bead toe portion) is narrow. When L 2 / L 1 exceeds 1.0, the width of the reinforcing rubber layer (bead toe portion) becomes too large and the gap between the bead portion and the rim becomes too large. The fitting property deteriorates. If the angle θ is less than 60 °, the capacity of the reinforcing rubber layer 6 decreases, so that the compressive strength of the reinforcing rubber layer 6 decreases and the turning performance deteriorates. When θ exceeds 80 °, the capacity of the reinforcing rubber layer 6 becomes large, so that improvement in turning performance cannot be expected. Therefore,
The angle θ is preferably between 60 ° and 80 °. When H / L 1 is 1.0 or less, the capacity of the reinforcing rubber layer 6 decreases, and the compressive strength of the reinforcing rubber layer 6 decreases. On the other hand, if it exceeds 2.0, the compressive strength is almost saturated. Therefore, H / L 1 is
It is good to be in the range of 1.0 to 2.0.
【００１３】[0013]
【実施例】 タイヤサイズ 340/40 ZR13を同じくする
下記の本発明タイヤ１、従来タイヤ１、および従来タイ
ヤ２を作製し、これらのタイヤにつき、高速走行時の旋
回性能を評価した。この結果を表１に示す。EXAMPLES The following tires 1 of the present invention, conventional tires 1 and conventional tires 2 having the same tire size of 340/40 ZR13 were produced, and the turning performance of these tires during high-speed running was evaluated. Table 1 shows the results.
【００１４】本発明タイヤ１ 図１に示すビード部構造を有する。ビードコア２は１本
巻きスチールビードコア。補強ゴム層６は下記内容の短
繊維強化ゴムからなる。長手方向平均長さが３．０ｍ
ｍ、平均径１０μ程度の芳香族ポリアミド繊維である。
補強ゴム層６の硬さはＪＩＳ−Ａ硬度９８°、２０℃の
弾性率が８５ＭＰａである。従来タイヤ１ 短繊維を用いないことを除いて本発明タイヤ１に同じ。The tire 1 of the present invention has a bead portion structure shown in FIG. Bead core 2 is a single wound steel bead core. The reinforcing rubber layer 6 is made of the following short fiber reinforced rubber. Average length in the longitudinal direction is 3.0m
m, an aromatic polyamide fiber having an average diameter of about 10 μm.
The hardness of the reinforcing rubber layer 6 is JIS-A hardness 98 °, and the elastic modulus at 20 ° C. is 85 MPa. Conventional tire 1 Same as tire 1 of the present invention except that short fibers are not used.
【００１５】従来タイヤ２ ビードトウ部４の補強ゴム層６としてＪＩＳ−Ａ硬度９
０°のゴムストックを配置し、このゴムストックの外側
に有機繊維コードのチェーファーを配したことを除いて
本発明タイヤ１に同じ。高速走行時の旋回性能 ：旋回性能試験は、一周が４．４
ｋｍの半径１００ｍのコーナーを有する試験コースで車
両を走行させた際のラップタイムと、半径１００ｍのコ
ーナーの通過速度によって評価した。評価車両は３リッ
トルの競技専用車である。この結果を従来タイヤ２を１
００とする指数で示す。指数値の大きい方が旋回性能に
優れている。 Conventionally , JIS-A hardness of 9 is used as the reinforcing rubber layer 6 of the bead toe portion 4 of the tire 2.
Same as the tire 1 of the present invention except that a rubber stock of 0 ° was arranged, and an organic fiber cord chafer was arranged outside the rubber stock. Turning performance during high-speed running : In the turning performance test, one round is 4.4
The evaluation was made based on the lap time when the vehicle was driven on a test course having a 100-km radius corner and a 100-m radius corner, and the passing speed of the 100-m radius corner. The evaluation vehicle is a 3 liter competition vehicle. This result is compared with the conventional tire 2 by 1
The index is set to 00. The larger the index value, the better the turning performance.
【００１６】[0016]
【表１】 [Table 1]
【００１７】表１から明らかなように、本発明タイヤ１
は従来タイヤ１および２に比して旋回性能に優れている
ことが判る。 上記の本発明タイヤ１につき、θ＝６０°、Ｈ／Ｌ
1 ＝１．５に設定すると共に、Ｌ2 ／Ｌ1 を０．２５、
０．５、０．７５、１．０と変化させて、高速走行時の
旋回性能を同様に評価した。この結果を図２に示す。図
２では、上記の従来タイヤ２を１００とする。図２から
判るように、Ｌ2 ／Ｌ1 ＝０．５〜１．０の範囲で旋回
性能が高い。As is clear from Table 1, the tire 1 of the present invention
It can be seen that the tire has excellent turning performance as compared with the conventional tires 1 and 2. For the above tire 1 of the present invention, θ = 60 °, H / L
1 = 1.5, L 2 / L 1 is set to 0.25,
By changing the values to 0.5, 0.75, and 1.0, the turning performance during high-speed running was similarly evaluated. The result is shown in FIG. In FIG. 2, the conventional tire 2 is set to 100. As can be seen from Figure 2, the turning performance is high range of L 2 / L 1 = 0.5~1.0.
【００１８】 上記の本発明タイヤ１につき、Ｌ2 ／
Ｌ1 ＝０．５、Ｈ／Ｌ1 ＝１．５に設定すると共に、θ
を５０°、６０°、７０°、８０°、９０°と変化させ
て、高速走行時の旋回性能を同様に評価した。この結果
を図３に示す。図３では、上記の従来タイヤ２を１００
とする。図３から判るように、θ＝６０°〜８０°の範
囲で旋回性能が高い。With respect to the above tire 1 of the present invention, L 2 /
L 1 = 0.5, H / L 1 = 1.5, and θ
Was changed to 50 °, 60 °, 70 °, 80 °, and 90 °, and the turning performance during high-speed running was similarly evaluated. The result is shown in FIG. In FIG. 3, the above conventional tire 2 is
And As can be seen from FIG. 3, the turning performance is high in the range of θ = 60 ° to 80 °.
【００１９】 上記の本発明タイヤ１につき、Ｌ2 ／
Ｌ1 ＝０．５、θ＝６０°に設定すると共に、Ｈ／Ｌ1
を０．５、１．０、１．５、２．０、と変化させて、高
速走行時の旋回性能を同様に評価した。この結果を図４
に示す。図４では、上記の従来タイヤ２を１００とす
る。図４から判るように、１．０＜Ｈ／Ｌ1 の範囲で旋
回性能が高い。With respect to the above tire 1 of the present invention, L 2 /
L 1 = 0.5, θ = 60 °, and H / L 1
Was changed to 0.5, 1.0, 1.5, and 2.0, and the turning performance during high-speed running was similarly evaluated. The result is shown in FIG.
Shown in In FIG. 4, the conventional tire 2 is set to 100. As can be seen from FIG. 4, 1.0 <cornering performance is high in the range of H / L 1.
【００２０】[0020]
【発明の効果】以上説明したように本発明によれば、ビ
ード部におけるビードコアのタイヤ軸方向内側域からタ
イヤ半径方向内側域にかけてのビードトウ部に、短繊維
強化ゴムからなる補強ゴム層を配設したために、半径１
００ｍのコーナーを２００ｋｍ／ｈ以上の高速で旋回走
行するような高速旋回性能の確保を可能にすることがで
きる。As described above, according to the present invention, a reinforcing rubber layer made of short fiber reinforced rubber is disposed at a bead toe portion of the bead core from the inner region in the tire axial direction to the inner region in the tire radial direction. Radius 1
It is possible to ensure high-speed turning performance such as turning at a high speed of 200 km / h or more at a corner of 00 m.
【図１】本発明の空気入りタイヤのビード部の一例の子
午線方向断面図である。FIG. 1 is a meridional section view of an example of a bead portion of a pneumatic tire of the present invention.
【図２】幅Ｌ2 ／Ｌ1 と高速走行時の旋回性能との関係
図である。FIG. 2 is a diagram illustrating a relationship between a width L 2 / L 1 and a turning performance during high-speed running.
【図３】角度θと高速走行時の旋回性能との関係図であ
る。FIG. 3 is a diagram illustrating a relationship between an angle θ and a turning performance during high-speed running.
【図４】高さＨ／Ｌ1 と高速走行時の旋回性能との関係
図である。4 is a graph showing the relationship between the height H / L 1 and the turning performance at high speeds.
１ ビード部 ２ ビードコア ３1 、３2 カー
カス層 ４ ビードトウ部 ５ 短繊維 ６ 補強ゴム層DESCRIPTION OF SYMBOLS 1 Bead part 2 Bead core 3 1 , 3 2 Carcass layer 4 Bead toe part 5 Short fiber 6 Reinforcement rubber layer
Claims (4)
カス層が装架され、トレッド部においてカーカス層の外
側にベルト層がタイヤ１周に亘って配置された空気入り
タイヤにおいて、前記ビード部におけるビードトウ部か
らタイヤ内壁面に沿う領域に、短繊維強化ゴムからなる
補強ゴム層を配設した空気入りタイヤ。1. A pneumatic tire in which a carcass layer is mounted on a bead core of a pair of left and right bead portions, and a belt layer is arranged around the tire around the carcass layer in a tread portion. A pneumatic tire in which a reinforcing rubber layer made of short fiber reinforced rubber is disposed in a region extending from a portion to a tire inner wall surface.
ビードトウ部先端までのタイヤ軸方向幅Ｌ2 が、ビード
コアのタイヤ軸方向最大幅Ｌ1 に対する比Ｌ 2 ／Ｌ1 、
ビードトウ部先端部のタイヤ内壁面とビードシートとの
なす角度θ、補強ゴム層のリム径相当位置からの高さＨ
の前記最大幅Ｌ1 に対する比Ｈ／Ｌ1が、それぞれ下記
の関係にある請求項１記載の空気入りタイヤ。 ０．５≦Ｌ2 ／Ｌ1 ≦１．０ ６０°≦θ １．０＜Ｈ／Ｌ1 2. From the inner surface of the bead core of the reinforcing rubber layer
Tire axial width L to bead toe tipTwoBut the bead
Core maximum width L in the tire axial direction1The ratio L to Two/ L1,
The inner wall surface of the tire at the tip of the bead toe and the bead seat
Angle θ, height H of reinforced rubber layer from rim diameter equivalent position
The maximum width L of1Ratio H / L to1But each
The pneumatic tire according to claim 1, wherein 0.5 ≦ LTwo/ L1≦ 1.0 60 ° ≦ θ 1.0 <H / L1
し短繊維を５〜３０重量部配合してなる請求項１又は２
記載の空気入りタイヤ。3. The reinforcing rubber layer is composed of 5 to 30 parts by weight of short fibers with respect to 100 parts by weight of rubber.
The pneumatic tire as described.
イヤ半径方向に配向している請求項１〜３のいずれか１
項記載の空気入りタイヤ。4. The method according to claim 1, wherein the short fibers in the reinforcing rubber layer are mainly oriented in a tire radial direction.
The pneumatic tire according to the item.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16971298A JP3843181B2 (en) | 1998-06-17 | 1998-06-17 | Pneumatic tire |
| US09/330,219 US6286576B1 (en) | 1998-06-17 | 1999-06-11 | Pneumatic tire with specified bead toe |
| US09/874,046 US6513559B2 (en) | 1998-06-17 | 2001-06-06 | Pneumatic tire with specified bead toe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16971298A JP3843181B2 (en) | 1998-06-17 | 1998-06-17 | Pneumatic tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000001110A true JP2000001110A (en) | 2000-01-07 |
| JP3843181B2 JP3843181B2 (en) | 2006-11-08 |
Family
ID=15891478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16971298A Expired - Fee Related JP3843181B2 (en) | 1998-06-17 | 1998-06-17 | Pneumatic tire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3843181B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002096604A (en) * | 2000-09-26 | 2002-04-02 | Bridgestone Corp | Elastic wheel |
| JP2006327490A (en) * | 2005-05-27 | 2006-12-07 | Sumitomo Rubber Ind Ltd | Pneumatic tire |
| WO2013041301A1 (en) * | 2011-09-21 | 2013-03-28 | Continental Reifen Deutschland Gmbh | Pneumatic vehicle tyre with a radial design |
-
1998
- 1998-06-17 JP JP16971298A patent/JP3843181B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002096604A (en) * | 2000-09-26 | 2002-04-02 | Bridgestone Corp | Elastic wheel |
| JP2006327490A (en) * | 2005-05-27 | 2006-12-07 | Sumitomo Rubber Ind Ltd | Pneumatic tire |
| JP4700410B2 (en) * | 2005-05-27 | 2011-06-15 | 住友ゴム工業株式会社 | Pneumatic tire |
| WO2013041301A1 (en) * | 2011-09-21 | 2013-03-28 | Continental Reifen Deutschland Gmbh | Pneumatic vehicle tyre with a radial design |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3843181B2 (en) | 2006-11-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4266053B2 (en) | Pneumatic tire | |
| US5431209A (en) | Passenger tire with low bead apex volume | |
| JP4535460B2 (en) | Pneumatic radial tire for motorcycles | |
| WO2006070533A1 (en) | Pneumatic tire | |
| JP4989210B2 (en) | Motorcycle tires | |
| JPH01101203A (en) | Pneumatic tire | |
| EP0467585A1 (en) | Radial tyre for a motorcycle | |
| CN115362071A (en) | Pneumatic tire | |
| JP2008265411A (en) | Pneumatic tire | |
| JPS62279108A (en) | Radial-ply tire for passenger car | |
| JP2553977B2 (en) | Pneumatic radial tires | |
| JP2007084025A (en) | Pneumatic tire for two-wheeler | |
| JP3843182B2 (en) | Pneumatic tire | |
| EP0549311A1 (en) | Motorcycle radial tyre | |
| JP3843181B2 (en) | Pneumatic tire | |
| JP2853816B2 (en) | Pneumatic radial tire | |
| JPH07186609A (en) | Pneumatic tire | |
| JP2005075295A (en) | Pneumatic tire | |
| JP2733428B2 (en) | Pneumatic tire | |
| JP2573260B2 (en) | Pneumatic radial tire | |
| JP2008100552A (en) | Tire for motorcycle | |
| JPH11301221A (en) | Pneumatic radial tire | |
| JPH02144201A (en) | Pneumatic tire | |
| JP2001233025A (en) | Pneumatic tire | |
| JP3005107B2 (en) | Motorcycle tires |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20041013 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20060501 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060516 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20060712 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20060808 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20060814 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090818 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100818 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110818 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110818 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110818 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120818 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120818 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120818 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130818 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130818 Year of fee payment: 7 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |