JPH08230413A - Pneumatic tire - Google Patents
Pneumatic tireInfo
- Publication number
- JPH08230413A JPH08230413A JP7034181A JP3418195A JPH08230413A JP H08230413 A JPH08230413 A JP H08230413A JP 7034181 A JP7034181 A JP 7034181A JP 3418195 A JP3418195 A JP 3418195A JP H08230413 A JPH08230413 A JP H08230413A
- Authority
- JP
- Japan
- Prior art keywords
- groove
- tire
- groove wall
- inclination
- lateral
- 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.)
- Withdrawn
Links
Landscapes
- Tires In General (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、空気入りタイヤ、特
にトラックバスなどの重荷重用空気入りタイヤの改良に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pneumatic tire, and more particularly to a pneumatic tire for heavy loads such as trucks and buses.
【０００２】[0002]
【従来の技術】従来のタイヤは、一般にタイヤ成形の容
易さや荷重を担持する有効接地面積の確保等から、タイ
ヤショルダーに開口する横溝は溝底に近くなるほどその
溝幅を狭くするのが通常である。2. Description of the Related Art Conventional tires generally have a narrower groove width on the lateral side of the tire shoulder, which is closer to the groove bottom, in order to facilitate tire molding and to secure an effective ground contact area for carrying a load. is there.
【０００３】[0003]
【発明が解決しようとする課題】しかし、かかる構造で
は本来、溝壁の中特に踏込み側の溝壁と路面とのなす角
度が鈍角なので、水膜を破るエッジ部の作用（破水性
能）が比較的小さい上に、走行時にトレッド部が摩耗す
るにつれて当該横溝は溝幅が狭くなることから、降雨等
で表面に水膜が形成された路面を走行する時トレッド下
の水をタイヤの両側に排出する横溝の作用（排水性）が
次第に減少してしまう。したがって、従来のタイヤで
は、走行するにつれて湿潤路面上の制動性能が低下する
という問題点があった。However, in such a structure, since the angle between the road surface and the groove wall in the groove wall, especially on the stepping side, is obtuse, the action of the edge portion that breaks the water film (water breaking performance) is compared. In addition to its small size, the width of the lateral groove becomes narrower as the tread portion wears during running, so the water under the tread is drained to both sides of the tire when running on a road surface with a water film on the surface due to rainfall or the like. The action of the horizontal groove (drainage) gradually decreases. Therefore, the conventional tire has a problem that the braking performance on the wet road surface decreases as it travels.
【０００４】この発明の目的は、走行でトレッド部が摩
耗しても、横溝の排水性と破水性能を保持し、湿潤路面
上の制動性能の低下を防止することができる空気入りタ
イヤを提供することにある。An object of the present invention is to provide a pneumatic tire capable of maintaining drainage and water-breaking performance of a lateral groove even when a tread portion is worn during running and preventing deterioration of braking performance on a wet road surface. Especially.
【０００５】[0005]
【課題を解決するための手段】しかして、この発明は上
記目的を達成するため、タイヤトレッド部にタイヤショ
ルダーに開口する横溝を備えた空気入りタイヤにおい
て、当該横溝の少なくとも一方の溝壁をラジアル面に対
して傾けて、溝底に近くなる程溝幅が広くなる構成とし
たことを特徴とする空気入りタイヤをその要旨とするも
のである。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a pneumatic tire having a lateral groove that is opened in a tire shoulder in a tire tread portion, and at least one groove wall of the lateral groove is radial. The pneumatic tire is characterized in that the groove width is widened as it gets closer to the groove bottom by inclining with respect to the surface.
【０００６】具体的には、図２に示すように、ラジアル
面７に対し踏込み側の溝壁５がなす傾斜角度αと、蹴出
し側の溝壁６がなす傾斜角度βとを、溝４の溝幅が溝底
に近くなる程広くなるように設定する。ただ、当該溝幅
をあまり広くしすぎると、走行するにつれトレッドの有
効接地面積が所定の値以下に減少して、タイヤの耐摩耗
性能のみならず乾燥路面上の制動・駆動性能までも損う
ことになる。従って、この発明を実施するにおいては、
上記の傾斜角度αとβとを次式（１）と（２）で特定さ
れる範囲に設定することが望ましい。 ＋２０°≧ α ≧ ０° ・・・・・（１） α ＞ β ≧−１０° ・・・・・（２） （但し、車の進行方向への傾斜を正（＋）、後方向への
傾斜を負（−）で表す） このαとβをとを適宜組み合わせて溝底に近くなるほど
溝幅が広くなる構成とする。Specifically, as shown in FIG. 2, the inclination angle α formed by the groove wall 5 on the stepping side with respect to the radial surface 7 and the inclination angle β formed by the groove wall 6 on the kicking side are defined by the groove 4 The groove width is set so that it becomes wider as it gets closer to the groove bottom. However, if the groove width is made too wide, the effective ground contact area of the tread will decrease below a specified value as the vehicle runs, and not only the wear resistance of the tire but also the braking / driving performance on a dry road surface will be impaired. It will be. Therefore, in carrying out the present invention,
It is desirable to set the above inclination angles α and β within the ranges specified by the following equations (1) and (2). + 20 ° ≧ α ≧ 0 ° (1) α> β ≧ −10 ° (2) (However, if the inclination of the vehicle in the traveling direction is positive (+), backward The inclination is represented by negative (-)) By appropriately combining α and β, the groove width becomes wider as it gets closer to the groove bottom.
【０００７】車の進行方向とは、通常、そのフロント方
向に前進することを意味するが、この発明においては必
ずしもこれに限定するものではなく、車が後進する（バ
ックする）場合も含まれている。しかして、前進時のみ
でなくバック時の制動も同時に改良したい場合には、上
記の式（２）で示されるβの値を０°＞β≧−１０°の
範囲、すなわち鋭角に設定する。また、タイヤの装着位
置を交換する際左右輪で反対向きに装着するとタイヤの
回転方向が逆になるので、このような場合にはαとβを
ラジアル面に対し正負逆向に同じ角度傾けて左右対称の
断面形状にすればよい。The traveling direction of the vehicle usually means moving forward in the front direction, but the present invention is not limited to this, and includes the case where the vehicle moves backward (backs). There is. If it is desired to improve not only the forward braking but also the back braking at the same time, the value of β shown in the above equation (2) is set to a range of 0 °> β ≧ −10 °, that is, an acute angle. Also, when replacing the tire mounting position, if the left and right wheels are mounted in opposite directions, the tires will rotate in opposite directions.In such a case, α and β should be tilted in the positive and negative directions with respect to the radial plane by the same angle. The cross-sectional shape should be symmetrical.
【０００８】傾斜角度αが０°以下の場合は、トレッド
表面と踏込み側の溝壁がなす角度θが鈍角になるため、
たとえ傾斜角度βをαより小として（言い換えれば、車
の後方向への傾斜をαより大きくして）溝底の溝幅を大
きくとっても、路面上の水膜を破る作用が小さくなる結
果、湿潤路面上の制動性能は全体として低下する。ま
た、傾斜角度αが＋２０°より大きくなって角度θが鋭
角になりすぎると、当該溝壁部の剛性が不足して水膜を
破るエッジの作用が減殺されると共に、耐摩耗性や耐偏
摩耗性が低下するので好ましくない。When the inclination angle α is 0 ° or less, the angle θ formed by the tread surface and the groove wall on the stepping side becomes an obtuse angle.
Even if the inclination angle β is smaller than α (in other words, the rearward inclination of the vehicle is larger than α) and the groove width at the groove bottom is large, the action of breaking the water film on the road surface becomes small, resulting in wetting. Braking performance on the road surface is reduced as a whole. If the inclination angle α is larger than + 20 ° and the angle θ becomes too acute, the rigidity of the groove wall portion is insufficient and the action of the edge that breaks the water film is diminished, and at the same time, wear resistance and deviation resistance are reduced. It is not preferable because the wear resistance is reduced.
【０００９】溝底に近くなるほど溝幅が広くなる構成と
するには、蹴出し側の傾斜角度βをαより小とすれば十
分である。特にαが比較的小さい場合は、角度βを−１
０°よりさらに大きくすることも可能であるが、溝壁部
並びにショルダー陸部全体の剛性を十分確保して耐摩耗
性や耐偏摩耗性など他のタイヤ特性への悪影響を回避す
るには、−１０°をβの下限値とするのが適切である。
このようにαとβの値を上記の範囲に限定すると、踏込
み側と蹴出し側の剛性差が比較的小さく押さえらて、偏
摩耗（トー＆ヒール摩耗）の発生を抑制することが可能
となる。In order to make the groove width wider as it gets closer to the groove bottom, it is sufficient to set the inclination angle β on the kicking side to be smaller than α. Especially when α is relatively small, the angle β is −1.
Although it is possible to make the angle larger than 0 °, in order to sufficiently secure the rigidity of the groove wall portion and the entire shoulder land portion and avoid adverse effects on other tire characteristics such as wear resistance and uneven wear resistance, It is appropriate to set -10 ° to the lower limit of β.
By limiting the values of α and β to the above range, it is possible to suppress the occurrence of uneven wear (toe and heel wear) by keeping the difference in rigidity between the stepping side and the kicking side relatively small. Become.
【００１０】本発明を実施した場合にも、横溝には路面
上の水を効率良く集めてタイヤの左右側方に速やかに排
除する機能が求められるので、タイヤ周上の溝個数や周
方向断面積を減少させることは好ましくないし、必要な
ことでもない。そこで本発明においては、タイヤ幅方向
の任意の地点における横溝の周方向断面積をそれぞれ所
定の値（従来タイヤの断面積と少なくとも同等乃至それ
以上の値）に保持しつつ、当該横溝の少なくとも一方の
溝壁をラジアル面に対して傾けて、溝底に近くなる程溝
幅が広くなる構成とする。また、溝深さを浅くするとタ
イヤの走行寿命の短縮をまねくので、溝深さは可能な限
り変えないことが望ましい。Even when the present invention is carried out, the lateral grooves are required to have a function of efficiently collecting water on the road surface and promptly removing the water on the left and right sides of the tire. It is neither preferred nor necessary to reduce the area. Therefore, in the present invention, at least one of the lateral grooves while maintaining the circumferential sectional area of the lateral groove at any point in the tire width direction at a predetermined value (at least equal to or greater than the sectional area of the conventional tire). The groove wall is inclined with respect to the radial surface so that the groove width becomes wider toward the groove bottom. Further, since the running life of the tire is shortened if the groove depth is made shallow, it is desirable that the groove depth is not changed as much as possible.
【００１１】また、トレッドの左右両サイドに位置する
横溝は、左右の溝でαとβをそれぞれ同じ値に設定して
トレッドセンターに対し軸対称なパターン形状とするこ
ともできるが、更に、左右の溝で独立にαとβを設定し
て非対称なパターン形状に設計することも可能である。
しかし、このいづれにせよ、傾斜角度αとβの値は前記
式（１）及び（２）で示される特定な範囲内で使用する
ことが望ましい。Further, the lateral grooves located on both the left and right sides of the tread can be set in a pattern symmetrical with respect to the tread center by setting α and β to the same value in the left and right grooves, respectively. It is also possible to set α and β independently in the groove of to design an asymmetric pattern shape.
However, in any case, it is desirable that the values of the inclination angles α and β be used within the specific ranges shown by the equations (1) and (2).
【００１２】[0012]
【作用】この発明のタイヤは、タイヤショルダーに開口
する横溝の少なくとも一方の溝壁を、ラジアル面に対し
傾けて、溝底に近くなる程溝幅が広くなる構成としたも
のなので、走行によるトレッド部の摩耗が生じても、当
該横溝の排水作用が低下することはなく、また、踏込み
側の溝壁がトレッド表面となす角度を９０°乃至それ以
下の角度（鋭角）となしうるため、エッジ部による路面
上の破水性能が向上し、路面湿潤時の制動性能が著しく
改善される。In the tire of the present invention, at least one groove wall of the lateral groove that opens in the tire shoulder is tilted with respect to the radial surface so that the groove width becomes wider as it gets closer to the groove bottom. Even if wear occurs in the part, the drainage action of the lateral groove does not decrease, and the angle formed by the groove wall on the stepping side with the tread surface can be set to 90 ° or less (acute angle). The water rupture performance on the road surface by the part is improved, and the braking performance when the road surface is wet is significantly improved.
【００１３】また、ラジアル面に対し踏込み側の溝壁が
なす傾斜角度αと、蹴出し側の溝壁がなす傾斜角度βと
を既述した範囲に特定して構成すると、エッジ部並びに
ショルダー陸部全体の剛性が所要のレベルに保持され
て、例えば踏込み側と蹴出し側の摩耗差（トー＆ヒール
摩耗）や肩落ち摩耗の発生など他のタイヤ特性への悪影
響を回避することができる。If the inclination angle α formed by the groove wall on the stepping side with respect to the radial surface and the inclination angle β formed by the groove wall on the kicking side are specified within the above-described ranges, the edge portion and the shoulder land The rigidity of the entire part is maintained at a required level, and it is possible to avoid adverse effects on other tire characteristics such as wear difference between the stepping side and the kicking side (toe and heel wear) and shoulder drop wear.
【００１４】[0014]
【実施例】図１はこの発明に係る空気入りタイヤの一実
施例を示す斜視図、図２は図１におけるII−II線に沿う
トレッドの走行中における接地状態を示す要部拡大断面
図である。FIG. 1 is a perspective view showing an embodiment of a pneumatic tire according to the present invention, and FIG. 2 is an enlarged sectional view of an essential part showing a ground contact state of a tread along a line II-II in FIG. is there.
【００１５】図において、１はタイヤトレッド部、２は
タイヤショルダー、３はタイヤトレッド部１においてタ
イヤ円周方向に形成された縦溝、４はタイヤトレッド部
１の両側においてタイヤ幅方向のタイヤショルダー２側
に開口する溝壁である。なお、５はタイヤ回転方向Ｒに
おいて路面に対する踏込み側の溝壁、６は路面に対する
蹴出し側の溝壁である。この実施例では、図２に示す様
に、ラジアル面７に対し踏込み側の溝壁５がなす傾斜角
度αと、蹴出し側の溝壁６がなす傾斜角度βとを、前記
（１）式と（２）式に従うα＞βの条件下で、共に車の
前方向に傾斜させて、当該横溝４の溝底に近くなる程溝
幅が広くなるように構成するとともに、踏込み側の溝壁
５がタイヤトレッド部１の表面となす角度θを鋭角にし
ている。In the figure, 1 is a tire tread portion, 2 is a tire shoulder, 3 is a vertical groove formed in the tire tread portion 1 in the tire circumferential direction, and 4 is a tire shoulder in the tire width direction on both sides of the tire tread portion 1. It is a groove wall that opens to the 2 side. Incidentally, 5 is a groove wall on the stepping side with respect to the road surface in the tire rotation direction R, and 6 is a groove wall on the kicking side with respect to the road surface. In this embodiment, as shown in FIG. 2, the inclination angle α formed by the groove wall 5 on the stepping side with respect to the radial surface 7 and the inclination angle β formed by the groove wall 6 on the kicking side are expressed by the above formula (1). Under the condition of α> β according to the equation (2) and (2), both are inclined in the forward direction of the vehicle so that the groove width becomes wider as it gets closer to the groove bottom of the lateral groove 4, and the groove wall on the stepping side. The angle θ formed by 5 with the surface of the tire tread portion 1 is an acute angle.
【００１６】したがって、走行するにつれてトレッド部
は漸次摩耗していくが、摩耗しても当該横溝４の溝幅は
漸次広がり、排水作用の低下を防止することができる。
また摩耗が生じても、踏込み側の溝壁５とタイヤトレッ
ド部１の表面となす角度は常に鋭角となるため、破水作
用も十分確保することができる。Therefore, the tread portion gradually wears as the vehicle travels, but even if it wears, the groove width of the lateral groove 4 gradually widens, and it is possible to prevent the drainage action from decreasing.
Further, even if abrasion occurs, the angle formed between the groove wall 5 on the stepping side and the surface of the tire tread portion 1 is always an acute angle, so that the water rupturing action can be sufficiently ensured.
【００１７】つぎに、踏込み側の溝壁がラジアル面に対
してなす傾斜角度αと蹴出し側の溝壁がラジアル面に対
してなす傾斜角度βとを種々変化させ、表１に示す組み
合わせからなるサイズ１０．００Ｒ２０のラジアルタイ
ヤを実際に試作し、湿潤路面上の制動性能を評価すると
共に、騒音性についても評価した。Next, the inclination angle α formed by the groove wall on the stepping side with respect to the radial surface and the inclination angle β formed by the groove wall on the kicking side with respect to the radial surface are variously changed. A radial tire having a size of 10.00R20 was actually prototyped, and the braking performance on a wet road surface was evaluated, and the noise performance was also evaluated.
【００１８】これらの試験タイヤの横溝の溝数、幅方向
の長さ（奥行き）、溝深さは比較例１（横溝の周方向断
面がＶ字形状である従来型のタイヤ）のそれと同数、同
寸法に設定されている。具体的には、溝数はトレッドの
両サイドにそれぞれ５０個、横溝４、４の奥行は６０m
m、溝深さは奥行１／２地点で１８mmで一定である。ま
た、溝幅については、αとβの値に応じてトレッド表面
と溝底の幅を変化させることにより、幅方向の任意の地
点におけるタイヤ周方向断面積が従来タイヤのそれと変
わらないように図られている。表１の溝幅と周方向断面
積は、奥行１／２地点の値をその代表値として示したも
のである。これにより、排水に必要な溝容積が減少して
排水効果が低減するという心配が避けられる。The number of lateral grooves, widthwise length (depth), and groove depth of these test tires were the same as those of Comparative Example 1 (conventional tire having a lateral groove with a V-shaped circumferential cross section). It is set to the same size. Specifically, the number of grooves is 50 on each side of the tread, and the depth of the lateral grooves 4, 4 is 60 m.
m, the groove depth is 18 mm at the depth 1/2 point and is constant. Regarding the groove width, by changing the widths of the tread surface and the groove bottom in accordance with the values of α and β, the tire circumferential direction cross-sectional area at an arbitrary point in the width direction is not changed from that of the conventional tire. Has been. The groove width and the circumferential cross-sectional area in Table 1 show the values at the depth 1/2 point as typical values. As a result, it is possible to avoid the fear that the groove volume required for drainage is reduced and the drainage effect is reduced.
【００１９】湿潤路面上の制動性能は米国統一タイヤ品
質等級基準ＵＴＱＧＡに定めた方法で新品時と５０％摩
耗時について測定し、比較例１（従来型のタイヤ）の新
品時の値を基準値（１００）として指数表示することに
より評価した。この場合、数値の大きい方が良好であ
る。The braking performance on a wet road surface was measured at the time of a new article and at the time of 50% wear by the method specified in the United States unified tire quality grade standard UTQGA, and the value at the time of a new article of Comparative Example 1 (conventional tire) was set as a standard value. It was evaluated by displaying it as an index as (100). In this case, the larger the number, the better.
【００２０】騒音性は空気圧７．３５kg／cm2 の試験タ
イヤをタイヤ軸荷重２７４０kg、速度８０km／h で実走
させ、暗騒音を引いた値につき、同じく比較例１の新品
時の値を基準値（１００）として指数表示することによ
り評価した。この場合は、数値の小さい方が良好であ
る。表１はその結果を示す。The noise performance was obtained by actually running a test tire with an air pressure of 7.35 kg / cm 2 at a tire axial load of 2740 kg and a speed of 80 km / h, and subtracting the background noise. The value (100) was evaluated by displaying it as an index. In this case, the smaller the number, the better. Table 1 shows the results.
【００２１】[0021]
【表１】 [Table 1]
【００２２】表１より、実施例１〜３のタイヤは、比較
例１〜２のタイヤに比して、新品時及び５０％摩耗時と
も湿潤路面上の制動性能が大きく、良好であることが確
認できる。また、少なくとも新品時における騒音が、比
較例１に比べて、低く押さえられていることが認められ
た。なお、この発明は上記実施例に限定されない。It can be seen from Table 1 that the tires of Examples 1 to 3 are superior to the tires of Comparative Examples 1 and 2 in that the braking performance on the wet road surface is large and good both when new and when 50% worn. I can confirm. Further, it was confirmed that at least the noise at the time of new product was suppressed to be lower than that of Comparative Example 1. The present invention is not limited to the above embodiment.
【００２３】[0023]
【発明の効果】この発明は、タイヤトレッド部にタイヤ
ショルダーに開口する横溝を備えた空気入りタイヤにお
いて、当該横溝の少なくとも一方の溝壁をラジアル面に
対して傾けて、溝底に近くなる程溝幅が広くなる構成と
したので、走行によるトレッド部の摩耗が生じても、当
該横溝の排水作用の低下を防止することができ、また踏
込側の溝壁とトレッド表面のなす角度が９０°乃至それ
以下の角度（鋭角）となるため、路面上の水膜を破る作
用も十分確保することができる。According to the present invention, in a pneumatic tire having a lateral groove that is opened in a tire shoulder in a tire tread portion, at least one groove wall of the lateral groove is inclined with respect to a radial surface so that the groove is closer to the groove bottom. Since the groove width is configured to be wide, even if the tread portion is worn due to running, the drainage action of the lateral groove can be prevented from being lowered, and the angle between the tread surface and the groove wall on the stepping side is 90 °. Since the angle is smaller than that (acute angle), it is possible to sufficiently secure the action of breaking the water film on the road surface.
【図１】この発明に係る空気入りタイヤの一実施例を示
す斜視図である。FIG. 1 is a perspective view showing an embodiment of a pneumatic tire according to the present invention.
【図２】図１におけるII−II線要部拡大断面図である。FIG. 2 is an enlarged cross-sectional view of a main part taken along line II-II in FIG.
１： トレッド部 ２： ショルダー ４： 横溝 ５： 踏込み側の溝壁 ６： 蹴出し側の溝壁 ７： ラジアル面 α、β：溝壁の傾斜角度 1: Tread part 2: Shoulder 4: Lateral groove 5: Groove wall on step-in side 6: Groove wall on kick side 7: Radial surface α, β: Angle of inclination of groove wall
Claims (2)
口する横溝を備えた空気入りタイヤにおいて、当該横溝
の少なくとも一方の溝壁をラジアル面に対して傾けて、
溝底に近くなる程溝幅が広くなる構成としたことを特徴
とする空気入りタイヤ。1. A pneumatic tire having a lateral groove opening to a tire shoulder in a tire tread portion, wherein at least one groove wall of the lateral groove is inclined with respect to a radial surface,
A pneumatic tire characterized in that the groove width becomes wider as it gets closer to the groove bottom.
斜角度をαとし、蹴出し側の溝壁がなす傾斜角度をβと
するとき、α及びβが次式（１）と（２）の関係を満足
する請求項１記載の空気入りタイヤ。 ＋２０°≧ α ≧ ０° ・・・・・（１） α ＞ β ≧−１０° ・・・・・（２） （但し、車の進行方向への傾斜を正（＋）、逆方向への
傾斜を負（−）で表す）2. When the inclination angle formed by the groove wall on the stepping side with respect to the radial surface is α and the inclination angle formed by the groove wall on the kicking side is β, α and β are expressed by the following equations (1) and (2). The pneumatic tire according to claim 1, which satisfies the relationship (1). + 20 ° ≧ α ≧ 0 ° (1) α> β ≧ −10 ° (2) (However, if the inclination of the vehicle in the traveling direction is positive (+), in the opposite direction The slope is negative (-)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7034181A JPH08230413A (en) | 1995-02-23 | 1995-02-23 | Pneumatic tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7034181A JPH08230413A (en) | 1995-02-23 | 1995-02-23 | Pneumatic tire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08230413A true JPH08230413A (en) | 1996-09-10 |
Family
ID=12407040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7034181A Withdrawn JPH08230413A (en) | 1995-02-23 | 1995-02-23 | Pneumatic tire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08230413A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006521236A (en) * | 2003-03-25 | 2006-09-21 | ソシエテ ドゥ テクノロジー ミシュラン | Method of attaching tire to construction machine and tire |
| CN103167961A (en) * | 2010-10-19 | 2013-06-19 | 株式会社普利司通 | Tire |
| CN106470850A (en) * | 2014-06-30 | 2017-03-01 | 米其林集团总公司 | There is the tire tread of the tread element of sloping front side |
-
1995
- 1995-02-23 JP JP7034181A patent/JPH08230413A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006521236A (en) * | 2003-03-25 | 2006-09-21 | ソシエテ ドゥ テクノロジー ミシュラン | Method of attaching tire to construction machine and tire |
| CN103167961A (en) * | 2010-10-19 | 2013-06-19 | 株式会社普利司通 | Tire |
| CN103167961B (en) * | 2010-10-19 | 2016-03-09 | 株式会社普利司通 | Tire |
| CN106470850A (en) * | 2014-06-30 | 2017-03-01 | 米其林集团总公司 | There is the tire tread of the tread element of sloping front side |
| JP2017519682A (en) * | 2014-06-30 | 2017-07-20 | コンパニー ゼネラール デ エタブリッスマン ミシュラン | Tire tread having a tread element with an inclined leading side |
| EP3160774B1 (en) * | 2014-06-30 | 2020-05-13 | Compagnie Générale des Etablissements Michelin | Tire treads having tread elements with inclined leading sides |
| US10766313B2 (en) | 2014-06-30 | 2020-09-08 | Compagnie Generale Des Etablissments Michelin | Tire treads having tread elements with inclined leading sides |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20020507 |