JPH09150607A - Pneumatic radial tire for heavy load - Google Patents
Pneumatic radial tire for heavy loadInfo
- Publication number
- JPH09150607A JPH09150607A JP7312674A JP31267495A JPH09150607A JP H09150607 A JPH09150607 A JP H09150607A JP 7312674 A JP7312674 A JP 7312674A JP 31267495 A JP31267495 A JP 31267495A JP H09150607 A JPH09150607 A JP H09150607A
- Authority
- JP
- Japan
- Prior art keywords
- groove
- tread
- main
- rubber
- width
- 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.)
- Pending
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
- 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
- B60C11/1307—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove walls
- B60C11/1346—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove walls covered by a rubber different from the tread rubber
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、重荷重用空気入り
ラジアルタイヤのトレッドのショルダー部に発生する偏
摩耗の抑止を図った重荷重用空気入りラジアルタイヤに
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heavy-duty pneumatic radial tire for suppressing uneven wear occurring in a shoulder portion of a tread of a heavy-duty pneumatic radial tire.
【０００２】[0002]
【従来の技術】従来の重荷重用空気入りラジアルタイヤ
として、例えば図４に示すようなものがある。同図にお
いて、重荷重用空気入りラジアルタイヤＴは、路面に接
するトレッド２と、トレッド２を強化したスチールコー
ドからなる複数層のベルト３と、ベルト３の内側でビー
ド５間に跨がるカーカス６とを有している。2. Description of the Related Art As a conventional heavy-duty pneumatic radial tire, for example, there is one as shown in FIG. In the figure, a heavy-duty pneumatic radial tire T includes a tread 2 in contact with a road surface, a belt 3 having a plurality of layers made of steel cord reinforced with the tread 2, and a carcass 6 extending between the beads 5 inside the belt 3. And have.
【０００３】このタイヤＴのトレッド１において、ベル
ト３の端部３ａはトレッド２のショルダー部２ａを強化
し、ベルト３の中央部３ｂはトレッド２の中央部２ｂを
強化しているが、ショルダー部２ａの剛性は中央部２ｂ
の剛性より小さい。また、トレッド２の中央部２ｂとシ
ョルダー部２ａとの径差により引き摺りを起こす。した
がって、トレッド２のショルダー部２ａに早期摩耗によ
る段差いわゆる肩落ち摩耗と呼ばれる偏摩耗７が発生す
る。また、ときには、図示していないが、トレッド２の
ショルダー部２ａの外表面が周方向に波打ったように摩
耗し、これがトレッド２の中央部にまで進展して、所謂
波状摩耗と呼ばれる偏摩耗が発生する。そこで、これら
の偏摩耗を抑止するため、特公平０６−０１５２８２に
おいてトレッドの側面部にて該側面上に開口する実質周
方向に延びる細溝を有した重荷重用空気入りタイヤが提
案されている。In the tread 1 of the tire T, the end portion 3a of the belt 3 strengthens the shoulder portion 2a of the tread 2, and the central portion 3b of the belt 3 strengthens the central portion 2b of the tread 2. 2a has a central portion 2b
Smaller than the rigidity of. Further, dragging occurs due to the diameter difference between the central portion 2b of the tread 2 and the shoulder portion 2a. Therefore, uneven wear 7, which is so-called shoulder drop wear, occurs due to early wear on the shoulder portion 2a of the tread 2. Further, although not shown, the outer surface of the shoulder portion 2a of the tread 2 is worn like a wavy shape in the circumferential direction, and this wear progresses to the central portion of the tread 2 to cause uneven wear called so-called wavy wear. Occurs. Therefore, in order to prevent such uneven wear, Japanese Patent Publication No. 06-015282 proposes a heavy-duty pneumatic tire having a narrow groove extending substantially in the circumferential direction on the side surface of the tread and opening on the side surface.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、このよ
うに偏摩耗の抑止を図ったものにあっても、次のような
問題があった。即ち、耐摩耗性と耐熱性を確保するため
に所謂キャップ／ベース・トレッドという物性の異なる
上下２層のゴム層を積層してなるトレッドを採用した場
合、トレッドの側面部にて側面上に開口する実質周方向
に延びる細溝の底の部分に亀裂が発生し、その部分がも
げてしまうことがあり、外観上も好ましくなくまた、細
溝の効果を発揮できないことがあった。そこで本発明の
目的は、トレッドの側面に開口する周方向の細溝を有
し、さらに上下２層のゴムを積層してなるトレッドを有
する重荷重用空気入りタイヤの細溝の底の亀裂の発生を
有効に抑止することにある。However, even in the case where the uneven wear is suppressed as described above, there are the following problems. That is, when a tread made by stacking two upper and lower rubber layers having different physical properties, so-called cap / base tread, to secure abrasion resistance and heat resistance is adopted, the side surface of the tread has an opening on the side surface. In some cases, a crack may occur at the bottom of the narrow groove extending substantially in the circumferential direction, and that part may be broken, which is not preferable in terms of appearance and the effect of the narrow groove may not be exhibited. Therefore, an object of the present invention is to provide a crack in the bottom of the narrow groove of a heavy duty pneumatic tire having a circumferential narrow groove opened on the side surface of the tread and further having a tread formed by laminating rubber of two layers above and below. To effectively deter.
【０００５】[0005]
【課題を解決するための手段】上記目的達成のため、本
発明の空気入りタイヤは左右のビード間に跨がるカーカ
スのクラウン部にベルトとトレッドゴムを配置し、トレ
ッドに周方向に延びる複数の主溝を有し、かつ該トレッ
ドの側面部にて側面上に開口する実質周方向に延びる細
溝を有し、前記細溝が前記ベルトより軸方向外側に配置
されるとともに、細溝が、トレッドの有効な接地端から
前記側面の外輪郭に沿って半径方向内側に向けて主溝の
溝深さの２５％〜１５０％の範囲で離隔した位置に、主
溝の溝幅の５％〜７５％の溝幅をもって開口し、開口か
ら屈曲部へと略軸方向内側へ延びる部分と屈曲部から溝
底へと略半径方向内側へ延びる部分とからなる「く」の
字状の断面形状を有するとともに、溝底が前記接地端か
ら軸方向内側にトレッドの接地幅の０．５％〜１０％の
位置、かつ前記接地端から半径方向内側に主溝の溝深さ
の２０％〜１８０％の位置にある重荷重用空気入りラジ
アルタイヤにおいて、（１）トレッドゴムは弾性率の異
なる上下２層のゴムを積層してなり、（２）前記「く」
の字状の断面形状を有する細溝の溝底に、該上下２層の
ゴム層の内のタイヤ踏面側に位置するゴム層が、厚さ
１．０ｍｍ以上存在していることを特徴としている。To achieve the above object, the pneumatic tire of the present invention has a plurality of belts and a tread rubber arranged in the crown portion of a carcass that straddles between the left and right beads, and a plurality of tires extending in the circumferential direction on the tread. The main groove of the tread, and also has a narrow groove extending substantially circumferentially on the side surface of the tread, and the narrow groove is arranged axially outside the belt, and the narrow groove is , 5% of the groove width of the main groove at a position separated from the effective grounding end of the tread radially inward along the outer contour of the side surface in the range of 25% to 150% of the groove depth of the main groove. A cross-sectional shape of a dogleg shape that is opened with a groove width of ˜75%, and that has a portion that extends from the opening to the bent portion inward in the substantially axial direction and a portion that extends from the bent portion to the groove bottom inward in the substantially radial direction. And the groove bottom is axially inward from the grounding end. In the radial radial tire for heavy load, which is located at 0.5% to 10% of the ground contact width of the saddle and at 20% to 180% of the groove depth of the main groove radially inward from the ground contact end, 1) The tread rubber is made by laminating upper and lower two layers of rubbers having different elastic moduli, and (2) the above "ku".
A rubber layer located on the tire tread side of the upper and lower two rubber layers is present at a thickness of 1.0 mm or more at the groove bottom of the narrow groove having a V-shaped cross section. .
【０００６】また、前記細溝の溝壁面部を、溝壁表面か
ら少なくとも０．５ｍｍの深さまでの厚さを有し、耐ク
ラック性および耐オゾン性に優れたゴム層で被覆すると
溝底の亀裂発生を抑制することができる。Further, when the groove wall surface portion of the fine groove is covered with a rubber layer having a thickness of at least 0.5 mm from the groove wall surface and having excellent crack resistance and ozone resistance, the groove bottom surface is Generation of cracks can be suppressed.
【０００７】弾性率の異なる上下２層のゴム層を積層し
てなる重荷重用空気入りラジアルタイヤのトレッドを用
いた場合、タイヤの転動時や突起に乗り上げた時に、２
層のゴム層の境界面に歪み応力が集中する。さらに、こ
のようなトレッドの上層にショルダー部に発生する偏摩
耗を抑止を図るために、トレッドの側面部にて側面上に
開口する実質周方向に延びる細溝配置した場合、前記境
界面に集中した歪み応力が前記細溝の溝に影響を与え、
溝底からの亀裂の発生の原因となる。従って、本発明で
は、溝底と境界面との最短距離Ｄを１．０ｍｍ以上離間
させてあるので、溝底での応力集中が緩和されて溝底か
らの亀裂の発生が抑制される。When a tread of a heavy-duty pneumatic radial tire having upper and lower two rubber layers having different elastic moduli is laminated is used, when the tire rolls or rides on a protrusion,
Strain stress concentrates on the boundary surface of the rubber layer of the layer. Furthermore, in order to suppress uneven wear that occurs in the shoulder portion in the upper layer of such a tread, when narrow grooves that extend in the substantially circumferential direction and open on the side surface are arranged in the side surface portion of the tread, the tread concentrates on the boundary surface. The strain stress caused affects the groove of the narrow groove,
This will cause cracks to occur from the bottom of the groove. Therefore, in the present invention, since the shortest distance D between the groove bottom and the boundary surface is 1.0 mm or more, stress concentration at the groove bottom is relieved and the occurrence of cracks at the groove bottom is suppressed.
【０００８】また、請求項２記載の発明では、細溝の溝
壁面部が耐クラック性および耐オゾン性に優れた所定厚
さ（０．５ｍｍ以上）のゴム層で被覆されるから、走行
粁の増加に伴って細溝の溝壁面部に繰り返し歪みが作用
してもオゾンクラック故障やテアー故障が発生し難くな
る。According to the second aspect of the present invention, since the groove wall surface portion of the fine groove is covered with a rubber layer having a predetermined thickness (0.5 mm or more) excellent in crack resistance and ozone resistance, the traveling dirt is reduced. As a result, the ozone crack failure and tear failure are less likely to occur even if the wall surface of the narrow groove is repeatedly strained.
【０００９】[0009]
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。図１は本発明の重荷重用空気入り
ラジアルタイヤの実施例を示す図である。タイヤサイズ
11Ｒ22.5 14 ＰＲの重荷重用空気入りラジアルタイヤで
あり、そのリムは8.25×22.5で、内圧は7.25kg／cm2 で
使用される。この重荷重用空気入りラジアルタイヤＴ
は、路面に接するトレッド２と、トレッド２を強化した
スチールコードからなる複数層のベルト３と、ベルト３
の内側にビード間に跨がるカーカス６とを有している。
トレッド２はその表面に４本の周方向の主溝１によりタ
イヤ軸方向に５個の陸部17に区画されている。なお、ト
レッド２の有効接地幅ＴＷは例えば208 mmで、主溝１の
溝幅Ｗ１は13.5mmである。トレッド部２は、２層のゴム
層８、９で形成されている。下層のゴム層９は、発熱の
低いゴムを採用しており、上層のゴム層８は、耐摩耗性
に優れるゴムを採用している。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing an embodiment of a heavy duty pneumatic radial tire of the present invention. tire size
11R22.5 14 PR is a heavy duty pneumatic radial tire with rim of 8.25 × 22.5 and internal pressure of 7.25kg / cm 2 . This heavy duty pneumatic radial tire T
Is a tread 2 that is in contact with the road surface, a belt 3 having a plurality of layers made of steel cord reinforced with the tread 2, and a belt 3
Has a carcass 6 that extends between the beads.
The tread 2 is divided into five land portions 17 in the tire axial direction by four circumferential main grooves 1 on the surface thereof. The effective ground contact width TW of the tread 2 is, for example, 208 mm, and the groove width W1 of the main groove 1 is 13.5 mm. The tread portion 2 is formed of two rubber layers 8 and 9. The lower rubber layer 9 is made of rubber having a low heat generation, and the upper rubber layer 8 is made of rubber having excellent wear resistance.
【００１０】図２、図３は、本発明の他の実施例の重荷
重用空気入りラジアルタイヤを示す図であり、トレッド
側面部にて側面上開口する細溝１０の少なくとも内部側
壁に０．５ｍｍの厚さを有する被覆ゴム層１１が被覆さ
れている。被覆ゴム層１１のゴムは老化防止剤を含有
し、その含有量がトレッド８の含有量より多い。FIGS. 2 and 3 are views showing a pneumatic radial tire for heavy load according to another embodiment of the present invention, in which 0.5 mm is provided on at least the inner side wall of the narrow groove 10 which is opened on the side surface of the tread. The coated rubber layer 11 having a thickness of 1 is coated. The rubber of the coated rubber layer 11 contains an antioxidant, and its content is larger than that of the tread 8.
【００１１】次に本発明の効果を確かめるべく、表１の
仕様の基づきタイヤを６種試作した。これらのタイヤは
本実施例のタイヤは、トレッド８、９の配置及び被覆ゴ
ム層１１が存在するかどうか以外は図１の実施例のタイ
ヤとまったく同一の構成ものとしている。試験はこれら
の試験タイヤをタイヤサイズ11Ｒ22.5 14 ＰＲの重荷重
用空気入りラジアルタイヤであり、8.25×22.5サイズの
リムに、内圧は7.25kg／cm2 で組み込み、トラックの前
輪に装着し５万ｋｍ走行して行った。そして、細溝の溝
底に生じた亀裂の長さを比較した結果を表１に示してあ
る。Next, in order to confirm the effects of the present invention, six types of tires were made on the basis of the specifications shown in Table 1. These tires have the same structure as the tire of the embodiment of FIG. 1 except for the arrangement of the treads 8 and 9 and the presence of the covering rubber layer 11. The test is a pneumatic radial tire for heavy loads with a tire size of 11R22.5 14 PR, and it is mounted on the front wheel of a truck with a 8.25 × 22.5 size rim and an internal pressure of 7.25kg / cm 2. I went for a km. Table 1 shows the result of comparison of the lengths of cracks generated at the groove bottoms of the narrow grooves.
【００１２】[0012]
【表１】 [Table 1]
【００１３】表１から明らかなように、細溝１０の溝底
での上層ゴム８の最低厚みは、１ｍｍ存在していれば亀
裂成長はほとんど発生しないことがわかる。また、被覆
ゴム１１にあっては溝底部に０．５ｍｍの厚みが存在す
れば溝底部での亀裂成長は十分抑制できる。As is clear from Table 1, if the minimum thickness of the upper rubber layer 8 at the groove bottom of the narrow groove 10 is 1 mm, crack growth hardly occurs. Further, in the coated rubber 11, if the groove bottom has a thickness of 0.5 mm, crack growth at the groove bottom can be sufficiently suppressed.
【００１４】[0014]
【発明の効果】以上述べた如く本発明の空気入りタイヤ
はトレッドの側面部にて該側面上に開口する実質周方向
に延びる細溝を有し、トレッドゴムが弾性率の異なる上
下２層のゴムを積層してなるタイヤで問題となる細溝の
亀裂に対して十分な抑制作用を有するため耐偏摩耗性、
耐摩耗性、耐熱性に優れたタイヤを提供することができ
る。As described above, the pneumatic tire of the present invention has the narrow groove extending substantially in the circumferential direction on the side surface of the tread and opening on the side surface, and the tread rubber is composed of the upper and lower two layers having different elastic moduli. Uneven wear resistance because it has a sufficient suppressing effect on cracks of narrow grooves, which is a problem in tires formed by laminating rubber,
It is possible to provide a tire having excellent wear resistance and heat resistance.
【図１】本発明の実施例を示す要部断面図である。FIG. 1 is a sectional view of a main part showing an embodiment of the present invention.
【図２】本発明の他の実施例を示す要部断面図である。FIG. 2 is a sectional view of a main part showing another embodiment of the present invention.
【図３】図２の細溝部の拡大図である。FIG. 3 is an enlarged view of a narrow groove portion of FIG.
【図４】従来例を示すタイヤ幅方向断面図である。FIG. 4 is a sectional view in the tire width direction showing a conventional example.
Ｔ 重荷重用空気入りラジアルタイヤ Ｄ 溝底と境界面との最短距離（上層トレッド最小
厚み） ２ トレッド ２ａ トレッドのショルダー部 ２ｂ トレッドの中央部 ３ ベルト ３ａ ベルトのショルダー部 ３ｂ ベルトの中央部 ５ ビード ６ カーカス ７ 偏摩耗部 ８ 上層のトレッド ９ 下層のトレッド １０ 細溝 １１ 被覆ゴムT Pneumatic radial tire for heavy load D Shortest distance between groove bottom and boundary surface (minimum thickness of upper tread) 2 Tread 2a Tread shoulder part 2b Tread center part 3 Belt 3a Belt shoulder part 3b Belt center part 5 Bead 6 Carcass 7 Uneven wear part 8 Upper layer tread 9 Lower layer tread 10 Small groove 11 Coated rubber
Claims (2)
ウン部にベルトとトレッドゴムを配置し、トレッドに周
方向に延びる複数の主溝を有し、かつ該トレッドの側面
部にて該側面上に開口する実質周方向に延びる細溝を有
し、 前記細溝が前記ベルトより軸方向外側に配置されるとと
もに、該細溝が、該トレッドの有効な接地端から前記側
面の外輪郭に沿って半径方向内側に向けて主溝の溝深さ
の２５％〜１５０％の範囲で離隔した位置に、主溝の溝
幅の５％〜７５％の溝幅をもって開口し、該開口から屈
曲部へと略軸方向内側へ延びる部分と該屈曲部から溝底
へと略半径方向内側へ延びる部分とからなる「く」の字
状の断面形状を有するとともに、該溝底が前記接地端か
ら軸方向内側にトレッドの接地幅の０．５％〜１０％の
位置、かつ前記接地端から半径方向内側に主溝の溝深さ
の２０％〜１８０％の位置にある重荷重用空気入りラジ
アルタイヤにおいて、（１）該トレッドゴムは弾性率の
異なる上下２層のゴムを積層してなり、（２）前記
「く」の字状の断面形状を有する細溝の溝底に、該上下
２層のゴム層の内のタイヤ踏面側に位置するゴム層が、
厚さ１．０ｍｍ以上存在していることを特徴とする重荷
重用空気入りラジアルタイヤ。1. A belt and a tread rubber are arranged in a crown portion of a carcass that straddles between left and right beads, and a tread has a plurality of main grooves extending in a circumferential direction, and a side surface portion of the tread has a side surface. A narrow groove extending substantially in the circumferential direction that opens upward, and the narrow groove is arranged axially outside of the belt, and the narrow groove extends from the effective ground end of the tread to the outer contour of the side surface. Along the inner side of the main groove in the range of 25% to 150% of the groove depth of the main groove, with a groove width of 5% to 75% of the groove width of the main groove, and bend from the opening. The groove bottom from the ground contact end, and the groove bottom has a cross-sectional shape consisting of a portion extending substantially inward in the axial direction from the bent portion and a portion extending substantially inward in the radial direction from the bent portion to the groove bottom. 0.5% to 10% of the ground contact width of the tread on the inside in the axial direction, and in front In a pneumatic radial tire for heavy load, which is located 20% to 180% of the groove depth of the main groove radially inward from the ground contact end, (1) the tread rubber is formed by laminating upper and lower two layers of rubbers having different elastic moduli. (2) The rubber layer located on the tire tread side of the upper and lower two rubber layers has a groove bottom of the narrow groove having the V-shaped cross section,
A heavy-duty pneumatic radial tire having a thickness of 1.0 mm or more.
ウン部にベルトとトレッドゴムを配置し、トレッドに周
方向に延びる複数の主溝を有し、かつ該トレッドの側面
部にて該側面上に開口する実質周方向に延びる細溝を有
し、 前記細溝が前記ベルトより軸方向外側に配置されるとと
もに、該細溝が、該トレッドの有効な接地端から前記側
面の外輪郭に沿って半径方向内側に向けて主溝の溝深さ
の２５％〜１５０％の範囲で離隔した位置に、主溝の溝
幅の５％〜７５％の溝幅をもって開口し、該開口から屈
曲部へと略軸方向内側へ延びる部分と該屈曲部から溝底
へと略半径方向内側へ延びる部分とからなる「く」の字
状の断面形状を有するとともに、該溝底が前記接地端か
ら軸方向内側にトレッドの接地幅の０．５％〜１０％の
位置、かつ前記接地端から半径方向内側に主溝の溝深さ
の２０％〜１８０％の位置にある重荷重用空気入りラジ
アルタイヤにおいて、（１）該トレッドゴムは弾性率の
異なる上下２層のゴムを積層してなり、（２）前記細溝
の溝壁面部を、溝壁表面から少なくとも0.5 mmの深さま
での厚さを有し、耐クラック性および耐オゾン性に優れ
たゴム層で被覆することを特徴とする重荷重用空気入り
ラジアルタイヤ。2. A belt and a tread rubber are arranged in a crown portion of a carcass straddling between left and right beads, and a plurality of main grooves extending in a circumferential direction is provided on the tread, and a side surface portion of the tread has a side surface. A narrow groove extending substantially in the circumferential direction that opens upward, and the narrow groove is arranged axially outside of the belt, and the narrow groove extends from the effective ground end of the tread to the outer contour of the side surface. Along the inner side of the main groove in the range of 25% to 150% of the groove depth of the main groove, with a groove width of 5% to 75% of the groove width of the main groove, and bend from the opening. The groove bottom from the ground contact end, and the groove bottom has a cross-sectional shape consisting of a portion extending substantially inward in the axial direction from the bent portion and a portion extending substantially inward in the radial direction from the bent portion to the groove bottom. 0.5% to 10% of the ground contact width of the tread on the inside in the axial direction, and in front In a pneumatic radial tire for heavy load, which is located 20% to 180% of the groove depth of the main groove radially inward from the ground contact end, (1) the tread rubber is formed by laminating upper and lower two layers of rubbers having different elastic moduli. (2) The groove wall surface portion of the narrow groove is covered with a rubber layer having a thickness of at least 0.5 mm from the groove wall surface and excellent in crack resistance and ozone resistance. Pneumatic radial tires for heavy loads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7312674A JPH09150607A (en) | 1995-11-30 | 1995-11-30 | Pneumatic radial tire for heavy load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7312674A JPH09150607A (en) | 1995-11-30 | 1995-11-30 | Pneumatic radial tire for heavy load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09150607A true JPH09150607A (en) | 1997-06-10 |
Family
ID=18032062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7312674A Pending JPH09150607A (en) | 1995-11-30 | 1995-11-30 | Pneumatic radial tire for heavy load |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09150607A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011110998A (en) * | 2009-11-25 | 2011-06-09 | Bridgestone Corp | Pneumatic radial tire for heavy load |
| WO2014102039A1 (en) * | 2012-12-28 | 2014-07-03 | Compagnie Generale Des Etablissements Michelin | Tread comprising sculpted elements comprising a covering layer |
| CN107914519A (en) * | 2017-11-21 | 2018-04-17 | 江苏通用科技股份有限公司 | A kind of tire tread suitable for driving wheel goes out type structure |
-
1995
- 1995-11-30 JP JP7312674A patent/JPH09150607A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011110998A (en) * | 2009-11-25 | 2011-06-09 | Bridgestone Corp | Pneumatic radial tire for heavy load |
| WO2014102039A1 (en) * | 2012-12-28 | 2014-07-03 | Compagnie Generale Des Etablissements Michelin | Tread comprising sculpted elements comprising a covering layer |
| FR3000432A1 (en) * | 2012-12-28 | 2014-07-04 | Michelin & Cie | TREAD BAND COMPRISING SCULPTURE ELEMENTS COMPRISING A RECOVERY LAYER |
| CN104837655B (en) * | 2012-12-28 | 2017-03-29 | 米其林企业总公司 | Including the tyre surface of the tread contour element with coating |
| RU2634361C2 (en) * | 2012-12-28 | 2017-10-26 | Компани Женераль Дэз Этаблиссман Мишлен | Tread containing sculpture elements with overlapping layer |
| US9944129B2 (en) | 2012-12-28 | 2018-04-17 | Compagnie Generale Des Etablissements Michelin | Tread comprising sculpted elements comprising a covering layer |
| CN107914519A (en) * | 2017-11-21 | 2018-04-17 | 江苏通用科技股份有限公司 | A kind of tire tread suitable for driving wheel goes out type structure |
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