JPH05319025A - Pneumatic tire - Google Patents
Pneumatic tireInfo
- Publication number
- JPH05319025A JPH05319025A JP4132553A JP13255392A JPH05319025A JP H05319025 A JPH05319025 A JP H05319025A JP 4132553 A JP4132553 A JP 4132553A JP 13255392 A JP13255392 A JP 13255392A JP H05319025 A JPH05319025 A JP H05319025A
- Authority
- JP
- Japan
- Prior art keywords
- groove
- tread
- tire
- inclined groove
- circumferential groove
- 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
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 10
- 230000002093 peripheral effect Effects 0.000 description 5
- 230000001154 acute effect Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000013112 stability test Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/13—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
- B60C11/1376—Three dimensional block surfaces departing from the enveloping tread contour
- B60C11/1384—Three dimensional block surfaces departing from the enveloping tread contour with chamfered block corners
-
- 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
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C2011/0337—Tread patterns characterised by particular design features of the pattern
- B60C2011/0339—Grooves
- B60C2011/0374—Slant grooves, i.e. having an angle of about 5 to 35 degrees to the equatorial plane
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、ドライ性能およびウ
ェット性能を両立させた高性能の空気入りタイヤに関
し、特にトレッドの偏磨耗を回避しようとするものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-performance pneumatic tire having both dry performance and wet performance, and particularly to avoid uneven wear of the tread.
【０００２】[0002]
【従来の技術】タイヤのウェット性能、特に耐ハイドロ
プレーニング性を向上し、また騒音の低下をはかるに
は、トレッドに、その円周に沿って延びる幅の広い周溝
と、タイヤの赤道に対して強い傾斜で延びて周溝と交わ
る横溝とを配置することが有利である。2. Description of the Related Art In order to improve the wet performance of tires, especially hydroplaning resistance, and to reduce noise, the tread should have a wide circumferential groove extending along its circumference and the equator of the tire. It is advantageous to arrange transverse grooves which extend with a strong inclination and intersect the circumferential groove.
【０００３】しかし、周溝と横溝とが交わる場合に横溝
の傾斜を強くすると、その交差域にある陸部の隅が鋭角
になって、この部分の剛性は低下するため、該隅部の磨
耗が他の区域と比較して遅れて進行し、これが偏磨耗の
原因となる。従って、横溝の傾斜角を小さくするには限
界があり、特にウェット性能を向上する上での障害とな
っている。なお、周溝に横溝を開口させずその終端を陸
部内に止めると、均一に磨耗を進行させることができる
が、排水性能は大きく低下することになる。However, if the inclination of the lateral groove is increased when the circumferential groove and the lateral groove intersect, the corner of the land portion at the intersection becomes an acute angle, and the rigidity of this portion decreases, so that the corner wears. Progresses later than in other areas, which causes uneven wear. Therefore, there is a limit in reducing the inclination angle of the lateral groove, which is an obstacle in improving wet performance. It should be noted that if the lateral groove is not opened in the circumferential groove and the end thereof is stopped in the land portion, wear can be promoted uniformly, but the drainage performance will be greatly reduced.
【０００４】一方、周溝および横溝の配置はそのまま
に、両者の交差域に形成される鋭角隅部での磨耗遅れに
よる偏磨耗を回避する手法として、該隅部を予め削減し
ておく、いわゆる面取りが有効である。On the other hand, while maintaining the arrangement of the circumferential groove and the lateral groove, as a method for avoiding uneven wear due to a delay in wear at an acute-angled corner portion formed in the intersection area between the two, the corner portion is reduced in advance, so-called. Chamfering is effective.
【０００５】[0005]
【発明が解決しようとする課題】この面取りは、陸部表
面から隅部の角に面する溝の底へ向けて、斜めに切断除
去して、傾斜平面を残すのが、通例である。しかしなが
ら、タイヤの使用開始から初期磨耗までの段階で、陸部
における接地域が少なくなりすぎて、接地性が劣る点で
不利であり、また隅部およびその周辺に空間が拡がるた
め、トレッドの意匠上の欠点となり得る。This chamfer is usually cut and removed diagonally from the land surface to the bottom of the groove facing the corner of the corner, leaving an inclined plane. However, from the start of tire use to the initial wear, it is disadvantageous in that the contact area in the land area becomes too small and the ground contact is poor, and the space expands to the corners and its surroundings, so the design of the tread It can be a drawback.
【０００６】そこで、この発明は、優れたウェット性能
や低騒音特性を犠牲にすることなしに、耐偏磨耗性を向
上した、空気入りタイヤを提供しようとするものであ
る。Therefore, the present invention is intended to provide a pneumatic tire having improved uneven wear resistance without sacrificing excellent wet performance and low noise characteristics.
【０００７】[0007]
【課題を解決するための手段】この発明は、１対のサイ
ドウォール間にまたがってトロイダル状に連なるトレッ
ドに、このトレッド円周に沿って延びる少なくとも１本
の周溝およびトレッド端側からトレッド中央部へ、タイ
ヤの赤道に対して傾斜する向きで延びる傾斜溝にて陸部
を区画した、空気入りタイヤであって、上記陸部は、周
溝とこの周溝に合流する傾斜溝または傾斜溝とこの傾斜
溝に合流する別の傾斜溝で囲まれる鋭角の隅部を有し、
該隅部は、傾斜溝の合流点からその本流となる溝に沿っ
た５〜30mmの範囲にわたり、タイヤ径方向外側に凸とな
る面が残る、面取りを施してなる、空気入りタイヤであ
る。SUMMARY OF THE INVENTION The present invention provides a tread that extends in a toroidal shape across a pair of sidewalls, at least one circumferential groove extending along the circumference of the tread, and a tread center from the tread end side. A pneumatic tire in which a land portion is divided by an inclined groove extending in a direction inclined to the equator of the tire, wherein the land portion is a circumferential groove and an inclined groove or an inclined groove that joins the circumferential groove. And has an acute-angled corner portion surrounded by another inclined groove that joins this inclined groove,
The corner portion is a pneumatic tire that is chamfered, in which a convex surface is left outside in the tire radial direction over a range of 5 to 30 mm from the confluence of the inclined grooves along the main groove.
【０００８】さて図１にこの発明に従う空気入りタイヤ
のトレッドの要部を示し、このトレッドを、タイヤの赤
道（トレッドの幅中央における円周）Ｏ上で延びる中央
周溝１、この中央周溝１に沿ってこの溝の両側で対をな
す周溝２、トレッド端Ｔからタイヤの赤道Ｏに対して傾
斜する向きで延びて中央周溝１に合流する主傾斜溝３お
よびこの主傾斜溝３に合流する副傾斜溝４によって、ト
レッド端Ｔ寄りにブロック５、中央周溝１の両側のブロ
ック６および７を、それぞれ多数区画してなる。なお、
図示のトレッドパターンにおいては、主傾斜溝３にさら
に副傾斜溝４が合流する配置としたが、副傾斜溝４を除
くパターンとすることも可能である。すなわち、この発
明は、溝が他の溝に合流することによって形成される陸
部の鋭角隅部を有する、トレッドパターンであれば、全
てに適合する。Now, FIG. 1 shows a main part of a tread of a pneumatic tire according to the present invention. This tread has a central circumferential groove 1 extending on the equator (circumference at the width center of the tread) O of the tire, and a central circumferential groove thereof. 1, a pair of peripheral grooves 2 on both sides of this groove, a main inclined groove 3 extending from the tread end T in a direction inclined with respect to the equator O of the tire and joining the central peripheral groove 1, and the main inclined groove 3 A plurality of blocks 5 are provided near the tread end T and blocks 6 and 7 on both sides of the central circumferential groove 1 are partitioned by the sub-sloping groove 4 that merges with each other. In addition,
In the illustrated tread pattern, the sub-tilt groove 4 is merged with the main tilt groove 3, but the sub-tilt groove 4 may be omitted. That is, the present invention is applicable to all tread patterns having a groove having an acute-angled corner portion of a land formed by joining with another groove.
【０００９】主傾斜溝３は、トレッド両端Ｔから中央周
溝１に向けて緩い傾斜で延び、周溝２を横切ったのち傾
斜を強めて点Ｐにて中央周溝１に合流し、この合流点近
傍に鋭角をなす隅部８が、中央周溝１および主傾斜溝３
にて区画される。一方、副傾斜溝４は、トレッド側部域
において、主傾斜溝３の緩傾斜部と平行に延び、トレッ
ド中央とトレッド端のほぼ中間域で主傾斜溝３の急傾斜
部に点Ｑにて合流し、この合流点Ｑ近傍に隅部９が、主
傾斜溝３および副傾斜溝４にて区画される。The main inclined groove 3 extends from both ends T of the tread toward the central circumferential groove 1 with a gentle inclination, crosses the circumferential groove 2 and then joins with the central circumferential groove 1 at a point P by strengthening the inclination, and this confluence. A corner portion 8 forming an acute angle near the point has a central circumferential groove 1 and a main inclined groove 3
It is divided by. On the other hand, the sub-inclined groove 4 extends in the tread side region in parallel with the gentle inclined portion of the main inclined groove 3, and at the point Q on the steep inclined portion of the main inclined groove 3 in the substantially intermediate region between the tread center and the tread end. Merging is performed, and a corner portion 9 is defined by the main inclined groove 3 and the auxiliary inclined groove 4 in the vicinity of the confluence Q.
【００１０】ここに、隅部８および９は、図２に断面を
示すように、タイヤ径方向外側に凸となる面が残る、面
取りを施すことが肝要である。この面取りは、本流とな
る溝、すなわち隅部８では中央周溝１、また隅部９では
主傾斜溝３、にそれぞれ沿う、その合流点ＰまたはＱか
らの距離ｌが５〜30mmの範囲にわたって施し、トレッド
の偏磨耗を回避する。なお、面取りは、タイヤの赤道Ｏ
の両側の、それぞれトレッド幅の1/4 にわたる区域内に
おける隅部に施すことが、とりわけ有効である。It is important that the corners 8 and 9 be chamfered so that a convex surface remains on the outer side in the tire radial direction as shown in the cross section in FIG. This chamfering is performed along the mainstream groove, that is, the central circumferential groove 1 at the corner 8 and the main inclined groove 3 at the corner 9, respectively, over a range of a distance 1 from the confluence point P or Q of 5 to 30 mm. Apply to avoid uneven wear of the tread. The chamfer is the equator O of the tire.
It is particularly effective to apply it to the corners on both sides of each of the areas, each of which spans 1/4 of the tread width.
【００１１】また、主傾斜溝３は、中央周溝１に対して
10〜40°の傾斜角度αで合流すること、同様に副傾斜溝
４は、主傾斜溝３に対して10〜40°の傾斜角度βで合流
することが、特に排水性の点で好ましい。Further, the main inclined groove 3 is formed with respect to the central circumferential groove 1.
It is particularly preferable in terms of drainability that the sub-inclined groove 4 joins the main inclined groove 3 at an inclination angle β of 10 to 40 °, and that the auxiliary inclined groove 4 joins at the inclination angle β of 10 to 40 °.
【００１２】[0012]
【作用】トレッドにおいて、周溝と交わる向きに延びる
溝を、周溝に対する傾斜角を大きくした傾斜溝とし、ト
レッド端側へ水を流れ易すくするとともに、踏み込み時
の水圧抵抗が減少すること、およびこの傾斜溝を周溝に
開口させて周溝内を流れる水を傾斜溝からトレッド端側
へ導くこと、によって、排水性を向上することが可能で
ある。In the tread, the groove extending in the direction intersecting with the circumferential groove is an inclined groove having a large inclination angle with respect to the circumferential groove to facilitate the flow of water to the end side of the tread, and to reduce the hydraulic resistance when stepping on the tread. Further, the drainage can be improved by opening the inclined groove to the peripheral groove and guiding the water flowing in the peripheral groove from the inclined groove to the tread end side.
【００１３】しかしながら、上記の傾斜溝を周溝、さら
には別の傾斜溝とつなぐことによって、各溝で区画され
る陸部の隅が鋭角化し、ここが偏磨耗の核となる不利が
生じる。この偏磨耗の核を解消するには、鋭角化した隅
部に面取りを施すことが極めて有効であるが、図３に示
すような傾斜平面を残す、従来の面取りでは、削減量が
多すぎるため、この空所がパターンノイズの新たな原因
となり易く、また陸部の剛性が不足する、おそれもあ
る。However, by connecting the inclined groove to the peripheral groove and further to the other inclined groove, the corner of the land portion defined by each groove becomes an acute angle, which causes a disadvantage that becomes a core of uneven wear. In order to eliminate this core of uneven wear, it is extremely effective to chamfer the sharpened corners, but the amount of reduction is too large in the conventional chamfer that leaves an inclined flat surface as shown in FIG. However, this void is likely to be a new cause of pattern noise, and the rigidity of the land portion may be insufficient.
【００１４】そこで、この発明においては、隅部の面取
りに当たり、図２に示した、タイヤ径方向外側に凸とな
る面を残すことによって、偏磨耗の核となり得る部分の
削除を、陸部の剛性を低下することなく達成する。とく
に陸部の面取り始端近傍では、図３に示した面取りと比
較して、より高い接地圧が得られるため、接地時の陸部
の動きを抑制でき、耐偏磨耗性や操縦安定性の向上に有
効である。Therefore, in the present invention, when chamfering a corner, by leaving a convex surface outward in the tire radial direction as shown in FIG. Achieve without reducing rigidity. Especially, in the vicinity of the chamfering start edge of the land part, a higher ground contact pressure can be obtained compared to the chamfering shown in FIG. 3, so movement of the land part at the time of ground contact can be suppressed, and uneven wear resistance and steering stability are improved. Is effective for.
【００１５】ここで、隅部の面取りは、本流となる溝に
沿って合流点ＰまたはＱからの距離ｌが５mm以上の範囲
にわたらないと、偏磨耗を回避することが難しく、一方
距離ｌが30mmをこえる範囲にわたって施すと、トレッド
踏面に占める陸部の比率が減少して、接地面不足による
グリップ力の低下だけでなく、溝体積の増加もまねき、
そのためパターンノイズが悪化するので、５〜30mmの範
囲とする必要がある。そして、面取りの範囲は、隅部の
角度（すなわち傾斜溝の角度αおよびβ）が小さいほど
拡げることが好ましい。また、面取りの深さは、陸部表
面から隅部を区画する溝の底部に向けて、その溝深さの
1/2 以上の位置まで施すことが好ましい。In the chamfering of the corners, it is difficult to avoid uneven wear unless the distance l from the confluence point P or Q along the main groove is within the range of 5 mm or more. When applied over a range of more than 30 mm, the ratio of land area occupying the tread tread will decrease, not only the grip force will decrease due to lack of contact surface, but also the groove volume will increase.
Therefore, the pattern noise is deteriorated, so it is necessary to set the range to 5 to 30 mm. The chamfering range is preferably expanded as the angle of the corner (that is, the angles α and β of the inclined groove) is smaller. In addition, the chamfer depth is the depth of the groove from the land surface to the bottom of the groove that divides the corner.
It is preferable to apply up to 1/2 or more positions.
【００１６】[0016]
【実施例】図１および図４に示したトレッドパターンに
従って、タイヤサイズ225/50 R16の空気入りラジアルタ
イヤを２種類（供試タイヤＡおよび比較タイヤＢ）試作
した。EXAMPLES Two types of pneumatic radial tires having a tire size of 225/50 R16 (test tire A and comparative tire B) were prototyped according to the tread patterns shown in FIGS. 1 and 4.
【００１７】供試タイヤＡにおいて、中央周溝１は幅：
11mmおよび深さ：８mm、周溝２は幅：８mmおよび深さ：
８mm、主傾斜溝３は幅：６〜７mmおよび深さ：８mmで中
央周溝１に16°（緩傾斜部は60°）の角度で合流し、副
傾斜溝４は幅：６mmおよび深さ：6.5mm でタイヤの赤道
に対して50〜70°の傾斜角で延びて主傾斜溝３に35゜の
角度で合流し、さらに、それぞれの合流部の隅部８
（ｌ：18mm）および隅部９（ｌ：９mm）に、図２に示し
たところに従う、凸状の面取りを施した。In the test tire A, the central circumferential groove 1 has a width:
11 mm and depth: 8 mm, circumferential groove 2 width: 8 mm and depth:
8 mm, the main inclined groove 3 has a width of 6 to 7 mm and a depth of 8 mm, and joins the central circumferential groove 1 at an angle of 16 ° (the gentle inclined portion is 60 °), and the auxiliary inclined groove 4 has a width of 6 mm and a depth. : 6.5 mm, extending at an inclination angle of 50 to 70 ° with respect to the equator of the tire, and joining the main inclined groove 3 at an angle of 35 °.
(L: 18 mm) and corner 9 (l: 9 mm) were provided with a convex chamfer according to that shown in FIG.
【００１８】一方、比較タイヤＢは、幅：９mmおよび深
さ：８mmの周溝10を間隔を置いて４本配置し、これら周
溝間を、横溝11（傾斜角度70°）、横溝12（傾斜角度50
°）および横溝13（傾斜角度80°）でつなげて成り、こ
れらの溝で区画された陸部の隅には、面取りを施さなか
った。On the other hand, in the comparative tire B, four circumferential grooves 10 having a width of 9 mm and a depth of 8 mm are arranged at intervals, and the lateral grooves 11 (tilt angle 70 °) and the lateral grooves 12 ( Tilt angle 50
Angle) and lateral groove 13 (inclination angle 80 °), and the corners of the land section defined by these grooves were not chamfered.
【００１９】これらの試作タイヤを、それぞれハイドロ
プレーニング試験、操縦安定性試験、パターンノイズ試
験および偏磨耗試験にて評価した結果を、表１に示す。
なお、各試験の評価は比較タイヤの各試験結果を100 と
したときの指数であらわした。Table 1 shows the results of evaluation of these trial tires by a hydroplaning test, a steering stability test, a pattern noise test and an uneven wear test.
The evaluation of each test is represented by an index when each test result of the comparative tire is 100.
【００２０】ここで、ハイドロプレーニング試験は、内
圧2.2kgf/cm2としたタイヤを、負荷荷重600kgf/cm2で水
深５mmの水路を80〜90km/hで走行させたときの、トレッ
ド接地面積を測定して評価し、操縦安定性試験は、普通
乗用車を用いてタイヤ内圧2.2 kg/cm2でドライバーが１
名搭乗状態で、150 〜200km/h で走行したときの直進性
およびレーンチェンジ性をドライバーがフィーリング評
価し、パターンノイズ試験は、操縦安定性試験と同様の
条件で、100km/h から40km/hの惰性走行時の車室内音を
フィーリング評価し、そして偏磨耗試験は、内圧 2.2kg
f/cm2 、一名乗車荷重条件にてＲ50ｍのサーキット路を
60km/hにて10周定常円旋回したときのトレッド起伏状態
を目視で評価した。Here, in the hydroplaning test, the tread contact area when a tire with an internal pressure of 2.2 kgf / cm 2 was run at a load of 600 kgf / cm 2 in a waterway with a water depth of 5 mm at 80 to 90 km / h Measured and evaluated, the steering stability test was carried out by a driver with a normal passenger car at a tire internal pressure of 2.2 kg / cm 2
The driver evaluated the straightness and lane changeability when traveling at 150 to 200 km / h in the name boarding state, and the pattern noise test was conducted from 100 km / h to 40 km / h under the same conditions as the steering stability test. The vehicle interior sound during coasting for h was evaluated for feeling, and the uneven wear test was performed using an internal pressure of 2.2 kg.
f / cm 2 , under a single passenger load condition, on an R50m circuit road
The undulating state of the tread when the vehicle made a steady circular turn for 10 laps at 60 km / h was visually evaluated.
【００２１】[0021]
【表１】 [Table 1]
【００２２】[0022]
【発明の効果】この発明によれば、操縦安定性に代表さ
れるドライ性能および耐ハイドロプレーニング性に代表
されるウェット性能、さらには低騒音特性を劣化するこ
となしに、偏磨耗を回避することができ、長寿命の高性
能タイヤの提供が可能となる。According to the present invention, it is possible to avoid uneven wear without deteriorating dry performance represented by steering stability, wet performance represented by hydroplaning resistance, and low noise characteristics. Therefore, it is possible to provide a high-performance tire with a long life.
【図１】この発明に従うトレッドパターンの展開図であ
る。FIG. 1 is a development view of a tread pattern according to the present invention.
【図２】隅部の断面図である。FIG. 2 is a sectional view of a corner portion.
【図３】隅部の断面図である。FIG. 3 is a sectional view of a corner portion.
【図４】従来のトレッドパターンの展開図である。 １ 中央周溝 ２ 周溝 ３ 主傾斜溝 ４ 副傾斜溝 ５ 陸部 ６ 陸部 ７ 陸部 ８ 隅部 ９ 隅部 10 周溝 11 横溝 12 横溝 13 横溝FIG. 4 is a development view of a conventional tread pattern. 1 central circumferential groove 2 circumferential groove 3 main inclined groove 4 sub-inclined groove 5 land portion 6 land portion 7 land portion 8 corner portion 9 corner portion 10 circumferential groove 11 lateral groove 12 lateral groove 13 lateral groove
Claims (1)
ロイダル状に連なるトレッドに、このトレッド円周に沿
って延びる少なくとも１本の周溝およびトレッド端側か
らトレッド中央部へ、タイヤの赤道に対して傾斜する向
きで延びる傾斜溝にて陸部を区画した、空気入りタイヤ
であって、上記陸部は、周溝とこの周溝に合流する傾斜
溝または傾斜溝とこの傾斜溝に合流する別の傾斜溝で囲
まれる鋭角の隅部を有し、該隅部は、傾斜溝の合流点か
らその本流となる溝に沿った５〜30mmの範囲にわたり、
タイヤ径方向外側に凸となる面が残る、面取りを施して
なる、空気入りタイヤ。1. A tread that extends in a toroidal shape across a pair of sidewalls, at least one circumferential groove extending along the circumference of the tread, and from the tread end side to the tread central portion, with respect to the tire equator. A pneumatic tire in which a land portion is divided by an inclined groove extending in a tilted direction, and the land portion includes a circumferential groove and an inclined groove that joins the circumferential groove, or an inclined groove that joins the inclined groove. Has an acute-angled corner surrounded by the inclined groove, and the corner extends from the confluence of the inclined groove to a range of 5 to 30 mm along the groove that becomes the main stream,
A pneumatic tire that is chamfered so that a convex surface remains outside in the tire radial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13255392A JP3193452B2 (en) | 1992-05-25 | 1992-05-25 | Pneumatic tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13255392A JP3193452B2 (en) | 1992-05-25 | 1992-05-25 | Pneumatic tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05319025A true JPH05319025A (en) | 1993-12-03 |
| JP3193452B2 JP3193452B2 (en) | 2001-07-30 |
Family
ID=15083983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13255392A Expired - Lifetime JP3193452B2 (en) | 1992-05-25 | 1992-05-25 | Pneumatic tire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3193452B2 (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5609699A (en) * | 1994-09-20 | 1997-03-11 | Bridgestone Corporation | Pneumatic radial tires including a fork-shaped groove |
| US5707461A (en) * | 1994-11-22 | 1998-01-13 | Bridgestone Corporation | Pneumatic tires for passenger cars |
| US5714021A (en) * | 1994-10-06 | 1998-02-03 | Bridgestone Corporation | Pneumatic tires |
| EP0849101A3 (en) * | 1996-12-19 | 1999-03-17 | Sumitomo Rubber Industries Ltd. | Heavy duty radial tyre |
| JPH11227421A (en) * | 1998-02-18 | 1999-08-24 | Bridgestone Corp | Pneumatic radial tire |
| US6098681A (en) * | 1997-11-12 | 2000-08-08 | Bridgestone Corporation | Pneumatic radial tire including chamfered blocks |
| US6123129A (en) * | 1998-01-14 | 2000-09-26 | Bridgestone Corporation | Pneumatic radial tire including false dividing groove |
| US6182726B1 (en) * | 1997-08-07 | 2001-02-06 | Bridgestone Corporation | Heavy duty pneumatic tire including chamfered region having a flat surface |
| US6213180B1 (en) | 1997-03-26 | 2001-04-10 | Bridgestone Corporation | Pneumatic radial tire including beveled acute angle corner portions |
| US6520230B1 (en) * | 2000-09-06 | 2003-02-18 | The Goodyear Tire & Rubber Company | Tire with an open tread |
| US6705366B2 (en) * | 2000-02-16 | 2004-03-16 | Bridgestone Corporation | Pneumatic tire including headland part |
| US6823911B1 (en) * | 1999-02-26 | 2004-11-30 | Bridgestone Corporation | Pneumatic tire including pseudo-land portion formed in circumferential groove |
| US6892775B1 (en) * | 1997-02-21 | 2005-05-17 | Bridgestone Corporation | Pneumatic radial tire for all-season passenger car |
| US6983777B2 (en) | 2002-10-15 | 2006-01-10 | The Goodyear Tire & Rubber Company | Tire tread with multi-planar chamfers |
| JP2007331412A (en) * | 2006-06-12 | 2007-12-27 | Bridgestone Corp | Pneumatic tire |
| JP2011025786A (en) * | 2009-07-23 | 2011-02-10 | Bridgestone Corp | Pneumatic tire |
| CN103201123A (en) * | 2010-09-09 | 2013-07-10 | 株式会社普利司通 | Tire |
-
1992
- 1992-05-25 JP JP13255392A patent/JP3193452B2/en not_active Expired - Lifetime
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5609699A (en) * | 1994-09-20 | 1997-03-11 | Bridgestone Corporation | Pneumatic radial tires including a fork-shaped groove |
| US5714021A (en) * | 1994-10-06 | 1998-02-03 | Bridgestone Corporation | Pneumatic tires |
| US5707461A (en) * | 1994-11-22 | 1998-01-13 | Bridgestone Corporation | Pneumatic tires for passenger cars |
| EP0849101A3 (en) * | 1996-12-19 | 1999-03-17 | Sumitomo Rubber Industries Ltd. | Heavy duty radial tyre |
| US6892775B1 (en) * | 1997-02-21 | 2005-05-17 | Bridgestone Corporation | Pneumatic radial tire for all-season passenger car |
| US6213180B1 (en) | 1997-03-26 | 2001-04-10 | Bridgestone Corporation | Pneumatic radial tire including beveled acute angle corner portions |
| US6182726B1 (en) * | 1997-08-07 | 2001-02-06 | Bridgestone Corporation | Heavy duty pneumatic tire including chamfered region having a flat surface |
| US6098681A (en) * | 1997-11-12 | 2000-08-08 | Bridgestone Corporation | Pneumatic radial tire including chamfered blocks |
| US6123129A (en) * | 1998-01-14 | 2000-09-26 | Bridgestone Corporation | Pneumatic radial tire including false dividing groove |
| JPH11227421A (en) * | 1998-02-18 | 1999-08-24 | Bridgestone Corp | Pneumatic radial tire |
| US6823911B1 (en) * | 1999-02-26 | 2004-11-30 | Bridgestone Corporation | Pneumatic tire including pseudo-land portion formed in circumferential groove |
| US6705366B2 (en) * | 2000-02-16 | 2004-03-16 | Bridgestone Corporation | Pneumatic tire including headland part |
| US6520230B1 (en) * | 2000-09-06 | 2003-02-18 | The Goodyear Tire & Rubber Company | Tire with an open tread |
| US6983777B2 (en) | 2002-10-15 | 2006-01-10 | The Goodyear Tire & Rubber Company | Tire tread with multi-planar chamfers |
| JP2007331412A (en) * | 2006-06-12 | 2007-12-27 | Bridgestone Corp | Pneumatic tire |
| JP2011025786A (en) * | 2009-07-23 | 2011-02-10 | Bridgestone Corp | Pneumatic tire |
| CN103201123A (en) * | 2010-09-09 | 2013-07-10 | 株式会社普利司通 | Tire |
| CN103201123B (en) * | 2010-09-09 | 2015-07-01 | 株式会社普利司通 | tire |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3193452B2 (en) | 2001-07-30 |
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