JPH10264613A - Pneumatic radial tire for passenger car or light truck running on rough road surface - Google Patents

Pneumatic radial tire for passenger car or light truck running on rough road surface

Info

Publication number
JPH10264613A
JPH10264613A JP9073544A JP7354497A JPH10264613A JP H10264613 A JPH10264613 A JP H10264613A JP 9073544 A JP9073544 A JP 9073544A JP 7354497 A JP7354497 A JP 7354497A JP H10264613 A JPH10264613 A JP H10264613A
Authority
JP
Japan
Prior art keywords
groove
circumferential direction
extending
depth
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
Application number
JP9073544A
Other languages
Japanese (ja)
Other versions
JP3720519B2 (en
Inventor
Yuji Kato
裕司 加藤
Tsukasa Haneda
司 羽田
Nobutaka Tanabe
信貴 田辺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP07354497A priority Critical patent/JP3720519B2/en
Publication of JPH10264613A publication Critical patent/JPH10264613A/en
Application granted granted Critical
Publication of JP3720519B2 publication Critical patent/JP3720519B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
    • B60C11/1272—Width of the sipe
    • B60C11/1281—Width of the sipe different within the same sipe, i.e. enlarged width portion at sipe bottom or along its length
    • 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
    • B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
    • B60C11/1236—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special arrangements in the tread pattern
    • B60C11/125—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special arrangements in the tread pattern arranged at the groove bottom
    • 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

Abstract

PROBLEM TO BE SOLVED: To keep the bottom of a groove unapt to be cut injured due to a foreign matter such as a stone by providing at least grooves extending in the circumferential direction or substantially in the circumferential direction, and steep inclined grooves extending in the inclined direction with small angle against the circumferential direction. SOLUTION: The tread of this tire is provided with three circumferential direction grooves 1 extending in the circumferential direction, many steep inclined grooves 2 extending in the inclined direction with a relative small angle such as 8 degees against the circumferential direction, and many gentle inclined grooves 3 extending in the inclined direction with relative large angles against the circumferential direction. In at least a part territory of the steep inclined groove, the bottom up of the groove is executed so that the groove depth 3.0 mm becomes 30.3%, of the groove depth (9.9 mm) of the circumferential direction groove, a thin groove 4 extending from the groove bottom further extending inward in the radial direction is provided, the groove width of the thin groove 4 is 1.2 mm, and the groove depth is formed to be 5 mm corresponding to 50.5% of the depth (9.9 mm) of the circumferential direction groove.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は荒れた路面を走行す
る乗用車乃至ライト・トラック用空気入りラジアル・タ
イヤに関するもので、特に、左右のビード・コアーに巻
回されてビード部に係留されたラジアル・カーカスと、
該ラジアル・カーカスのクラウン部ラジアル方向外側に
配置されたベルトと、該ベルトのラジアル方向外側に配
置されたトレッドとを備えた乗用車乃至ライト・トラッ
ク用空気入りラジアル・タイヤに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pneumatic radial tire for a car or a light truck traveling on a rough road surface, and more particularly to a radial tire wound around right and left bead cores and moored at a bead portion.・ With carcass,
The present invention relates to a pneumatic radial tire for a passenger car or a light truck, comprising a belt disposed radially outward of a crown portion of the radial carcass and a tread disposed radially outward of the belt.

【０００２】[0002]

【発明が解決しようとする課題】荒れた舗装路や農道な
どの非舗装路などに代表される、いわゆる荒れた路面を
タイヤが走行すると、路上に散乱している小石、ガラス
や金属などの破片およびボルト等の異物などによって、
タイヤのトレッド部に設けられた溝底にカット損傷を受
けやすい。溝底にカット損傷を受けたタイヤをそのまま
継続して使用していると、カット損傷がベルトまで進行
して損傷個所から水分が侵入し、ベルトを構成している
スチール・コードに錆びが発生し、致命的なバースト故
障を誘発することがある。上記のようなカット損傷を受
けにくくするために、タイヤのトレッド部に設けられた
溝を浅くすることによって溝底下のゴムの厚みを増加
し、カット損傷がベルトまで進行しにくいようにする
と、タイヤ転動時に溝が開閉する動きが小さくなるの
で、いったん溝に咬み込んだ石などの異物をいつまでも
吐き出さずに、かえってカット損傷が増加することがあ
る。When a tire runs on a so-called rough road such as a rough pavement or an unpaved road such as an agricultural road, debris such as pebbles, glass and metal scattered on the road. And foreign matter such as bolts
The groove bottom provided on the tread portion of the tire is susceptible to cut damage. If a tire with cut damage at the bottom of the groove is continuously used, the cut damage will progress to the belt, water will enter from the damaged part, and the steel cord that makes up the belt will rust. May cause catastrophic burst failure. To reduce the risk of cut damage as described above, the thickness of the rubber under the groove bottom is increased by making the groove provided in the tread portion of the tire shallow, so that the cut damage is less likely to progress to the belt. Since the opening and closing movement of the groove during rolling is reduced, foreign matter such as a stone once caught in the groove may not be discharged indefinitely, but may increase cut damage.

【０００３】本発明の目的は、上記のような従来技術の
不具合を解消して、石などの異物による溝底のカット損
傷を受けにくい、荒れた路面を走行する乗用車乃至ライ
ト・トラック用空気入りラジアル・タイヤを提供するこ
とである。[0003] An object of the present invention is to solve the above-mentioned disadvantages of the prior art and to reduce the damage to the bottom of the groove by foreign matter such as stones, and to provide a pneumatic vehicle or light truck for traveling on rough roads. To provide radial tires.

【０００４】[0004]

【課題を解決するための手段】上記目的を達成するため
に、本発明の空気入りタイヤは、左右一対のビード・コ
アーに巻回されてビード部に係留されたラジアル・カー
カスと、該ラジアル・カーカスのクラウン部ラジアル方
向外側に配置されたベルトと、該ベルトのラジアル方向
外側に配置されたトレッドとを備えた空気入りタイヤに
おいて、（１）トレッドには、少なくとも、周方向また
実質的に周方向に延びる周方向溝と、周方向に対して小
さな角度で傾斜した方向に延びる急傾斜溝とが設けら
れ、（２）該急傾斜溝の少なくとも一部領域では、溝深
さが該周方向溝の溝深さの２０乃至６０％となるように
溝の底上げが施され、（３）該急傾斜溝の上記溝の底上
げが施された領域では、溝底からさらにラジアル方向内
側に延びる細溝が設けられ、（４）該細溝の溝幅は０．
５乃至２．５ｍｍであることを特徴とする、荒れた路面
を走行する乗用車乃至ライト・トラック用空気入りラジ
アル・タイヤである。In order to achieve the above object, a pneumatic tire according to the present invention comprises: a radial carcass wound around a pair of right and left bead cores and moored at a bead portion; In a pneumatic tire including a belt disposed radially outward of a crown portion of a carcass and a tread disposed radially outward of the belt, (1) the tread includes at least a circumferential direction or a substantially circumferential direction. A circumferential groove extending in the direction, and a steeply inclined groove extending in a direction inclined at a small angle with respect to the circumferential direction. (2) In at least a part of the steeply inclined groove, a groove depth is set in the circumferential direction. The groove is raised to a depth of 20 to 60% of the groove depth. (3) In the region of the steeply inclined groove where the groove is raised, a narrow portion extending further inward in the radial direction from the groove bottom is provided. Groove Is, (4) the groove width of Said sub groove is 0.
A pneumatic radial tire for a passenger car or a light truck running on a rough road, which is 5 to 2.5 mm.

【０００５】上記目的を達成するために、本発明の空気
入りタイヤでは、該細溝の溝深さは該周方向溝の溝深さ
の４０乃至８０％であること、および該急傾斜溝は周方
向に対して５乃至３０度の小さな角度で傾斜した方向に
延びていることが好ましい。[0005] In order to achieve the above object, in the pneumatic tire of the present invention, the groove depth of the narrow groove is 40 to 80% of the groove depth of the circumferential groove, and the steep groove is It preferably extends in a direction inclined at a small angle of 5 to 30 degrees with respect to the circumferential direction.

【０００６】発明者などが廃品タイヤを調査した結果、
前述のカット損傷は、周方向に対して５乃至３０度程度
の小さな角度で傾斜した方向に延びる急傾斜溝で多発し
ていることが判明した。本発明の空気入りタイヤは上記
のような構成であり、特に、急傾斜溝の溝深さは周方向
溝の溝深さの２０乃至６０％と、浅く設定され溝底下の
ゴムの厚みが増加されているので、カット損傷がベルト
まで進行することを抑制するような構成となっている。
しかしながら、前述のように、カット損傷を受けにくく
するために、タイヤのトレッド部に設けられた溝を浅く
することによって溝底下のゴムの厚みを増加すると、タ
イヤ転動時に溝が開閉する動きが小さくなるので、いっ
たん溝に咬み込んだ石などの異物をいつまでも吐き出さ
ずに、かえってカット損傷が増加することがある。本発
明の空気入りタイヤでは、上記のように、急傾斜溝の溝
底からさらにラジアル方向内側に延びる細溝が設けら
れ、この細溝の溝幅は０．５乃至２．５ｍｍで、溝深さ
は周方向溝の溝深さの４０乃至８０％であるので、タイ
ヤ転動時に溝が開閉する動きが大きくなり、いったん溝
に咬み込んだ石などの異物を容易に吐き出してしまい、
カット損傷が減少する。また、急傾斜溝の溝底からさら
にラジアル方向内側に延びる細溝が設けられたことによ
って、摩耗中期以降も排水性能が確保されるとともに見
た目の摩耗外観の悪化を防止することができる。[0006] As a result of an investigation of a waste tire by the inventors and the like,
It has been found that the above-mentioned cut damage occurs frequently in a steeply inclined groove extending in a direction inclined at a small angle of about 5 to 30 degrees with respect to the circumferential direction. The pneumatic tire of the present invention is configured as described above. In particular, the groove depth of the steeply inclined groove is set to be as shallow as 20 to 60% of the groove depth of the circumferential groove, and the thickness of the rubber under the groove bottom increases. Therefore, the configuration is such that cut damage is prevented from progressing to the belt.
However, as described above, if the thickness of the rubber under the groove bottom is increased by making the groove provided in the tread portion of the tire shallow so as to make the groove less susceptible to cut damage, the movement of the groove opening and closing when the tire rolls may occur. Since it becomes smaller, foreign matter such as a stone once caught in the groove may not be discharged indefinitely, but may increase cut damage. In the pneumatic tire of the present invention, as described above, a narrow groove extending radially inward from the groove bottom of the steep groove is provided, and the groove width of the narrow groove is 0.5 to 2.5 mm, and the groove depth is 0.5 to 2.5 mm. Since the depth is 40 to 80% of the groove depth of the circumferential groove, the opening and closing movement of the groove when the tire rolls increases, and foreign matter such as a stone once caught in the groove is easily discharged,
Cut damage is reduced. In addition, the provision of the narrow groove extending further inward in the radial direction from the groove bottom of the steeply inclined groove ensures drainage performance even during the middle period of wear and prevents deterioration of the apparent wear appearance.

【０００７】[0007]

【発明の実施の形態】以下、本発明に従う実施例のタイ
ヤおよび従来例のタイヤについて図面を参照して説明す
る。タイヤ・サイズは、いずれも、ＬＴ１９５Ｒ１４で
ある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a tire according to an embodiment of the present invention and a conventional tire will be described with reference to the drawings. All tire sizes are LT195R14.

【０００８】図１は本発明による実施例のタイヤのトレ
ッド・パターンの一部拡大図であって、本発明による実
施例のタイヤは、図示を省略してあるが左右一対のビー
ド・コアーに巻回されてビード部に係留されたラジアル
・カーカスと、ラジアル・カーカスのクラウン部ラジア
ル方向外側に配置されたベルトと、ベルトのラジアル方
向外側に配置されたトレッドとを備えた空気入りタイヤ
である。本発明による実施例のタイヤのトレッドには、
図１に示すように、周方向に延びる３本の周方向溝１
と、周方向に対して８度の比較的に小さな角度で傾斜し
た方向に延びる多数の急傾斜溝２と、周方向に対して比
較的に大きな角度で傾斜した方向に延びる多数の緩傾斜
溝３とが設けられている。図２は図１のＡ−Ａ断面図で
ある。急傾斜溝２の少なくとも一部領域では、図２に示
すように、溝深さｄ1 ＝３．０ｍｍが周方向溝の溝深さ
（９．９ｍｍ）の３０．３％となるように溝の底上げが
施され、溝底からさらにラジアル方向内側に延びる細溝
４が設けられ、この細溝４の溝幅ｗは１．２ｍｍで、溝
深さｄ2 は５ｍｍで、周方向溝の溝深さ（９．９ｍｍ）
の５０．５％に相当する。図３は図２に相当する急傾斜
溝２と細溝４の断面図で、変形実施例である。FIG. 1 is a partially enlarged view of a tread pattern of a tire according to an embodiment of the present invention. The tire according to the embodiment of the present invention is wound around a pair of right and left bead cores (not shown). The pneumatic tire includes a radial carcass that is turned and moored to a bead portion, a belt disposed radially outward of a crown portion of the radial carcass, and a tread disposed radially outward of the belt. In the tread of the tire of the embodiment according to the present invention,
As shown in FIG. 1, three circumferential grooves 1 extending in the circumferential direction
And a number of steeply inclined grooves 2 extending in a direction inclined at a relatively small angle of 8 degrees with respect to the circumferential direction, and a number of gentle inclined grooves extending in a direction inclined at a relatively large angle with respect to the circumferential direction 3 are provided. FIG. 2 is a sectional view taken along line AA of FIG. In at least a part of the steeply inclined groove 2, as shown in FIG. 2, the groove depth d1 = 3.0 mm is set to 30.3% of the groove depth (9.9 mm) of the circumferential groove. The groove is raised, and a narrow groove 4 is further provided radially inward from the groove bottom. The narrow groove 4 has a groove width w of 1.2 mm, a groove depth d2 of 5 mm, and a groove depth of the circumferential groove. (9.9mm)
Of 50.5%. FIG. 3 is a sectional view of a steeply inclined groove 2 and a narrow groove 4 corresponding to FIG.

【０００９】従来例の空気入りタイヤは、急傾斜溝２は
溝の底上げが施されずに、周方向溝の溝深さ（９．９ｍ
ｍ）と同じ溝深さで、細溝４が設けられていないことが
上記実施例の空気入りタイヤとの主な相違点である。In the pneumatic tire of the prior art, the steeply inclined groove 2 is not raised, and the groove depth of the circumferential groove is 9.9 m.
The main difference from the pneumatic tire of the above embodiment is that the narrow groove 4 is not provided at the same groove depth as in m).

【００１０】上記本発明に従う実施例の空気入りタイヤ
と上記従来例の空気入りタイヤについて、小石、ガラス
や金属などの破片およびボルトなどの異物が路上に散乱
している荒れた舗装路や農道などの非舗装路で、トレッ
ド部のカット損傷の度合いの比較試験を実施した。３万
ｋｍ走行後、トレッド部のカット損傷を調べたところ、
上記本発明に従う実施例の空気入りタイヤではカット損
傷がほとんど発生していなかったが、上記従来例の空気
入りタイヤでは急傾斜溝２のほとんどすべてにカット損
傷が発生していた。The pneumatic tire according to the embodiment according to the present invention and the pneumatic tire according to the prior art described above are used on rough pavement roads, agricultural roads, and the like in which debris such as pebbles, glass and metal, and foreign substances such as bolts are scattered on the road. A non-paved road was subjected to a comparative test of the degree of cut damage in the tread portion. After running 30,000 km, we checked the tread for cut damage.
In the pneumatic tire of the example according to the present invention, cut damage was hardly generated, but in the pneumatic tire of the conventional example, cut damage was generated in almost all of the steeply inclined groove 2.

【００１１】[0011]

【発明の効果】上記の評価結果から、本発明に基づく実
施例の空気入りタイヤは従来例の空気入りタイヤと比べ
て、耐カット損傷性能が優れていることが分かる。From the above evaluation results, it can be seen that the pneumatic tire of the embodiment based on the present invention has better cut damage resistance than the conventional pneumatic tire.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明による空気入りタイヤのトレッド・パタ
ーンの一部拡大図である。FIG. 1 is a partially enlarged view of a tread pattern of a pneumatic tire according to the present invention.

【図２】図１のＡ−Ａ断面図である。FIG. 2 is a sectional view taken along line AA of FIG.

【図３】変形実施例の断面図である。FIG. 3 is a sectional view of a modified embodiment.

【符号の説明】[Explanation of symbols]

１ 周方向溝 ２ 急傾斜溝 ３ 緩傾斜溝 ４ 細溝 1 circumferential groove 2 steep groove 3 gentle slope groove 4 narrow groove

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 左右一対のビード・コアーに巻回されて
ビード部に係留されたラジアル・カーカスと、該ラジア
ル・カーカスのクラウン部ラジアル方向外側に配置され
たベルトと、該ベルトのラジアル方向外側に配置された
トレッドとを備えた空気入りタイヤにおいて、（１）ト
レッドには、少なくとも、周方向また実質的に周方向に
延びる周方向溝と、周方向に対して小さな角度で傾斜し
た方向に延びる急傾斜溝とが設けられ、（２）該急傾斜
溝の少なくとも一部領域では、溝深さが該周方向溝の溝
深さの２０乃至６０％となるように溝の底上げが施さ
れ、（３）該急傾斜溝の上記溝の底上げが施された領域
では、溝底からさらにラジアル方向内側に延びる細溝が
設けられ、（４）該細溝の溝幅は０．５乃至２．５ｍｍ
であることを特徴とする、荒れた路面を走行する乗用車
乃至ライト・トラック用空気入りラジアル・タイヤ。1. A radial carcass wound around a pair of right and left bead cores and moored to a bead portion, a belt disposed radially outward of a crown portion of the radial carcass, and a radial outer surface of the belt. (1) The tread has at least a circumferential groove extending in a circumferential direction or a substantially circumferential direction, and a tread in a direction inclined at a small angle with respect to the circumferential direction. And (2) raising the bottom of the groove so that the groove depth is at least 20% to 60% of the groove depth of the circumferential groove in at least a part of the groove. (3) A narrow groove extending radially inward from the groove bottom is provided in a region of the steeply inclined groove where the bottom of the groove is raised, and (4) a groove width of the narrow groove is 0.5 to 2 0.5mm
A pneumatic radial tire for a passenger car or a light truck running on a rough road surface. 【請求項２】 該細溝の溝深さは該周方向溝の溝深さの
４０乃至８０％であることを特徴とする請求項１記載の
乗用車乃至ライト・トラック用空気入りラジアル・タイ
ヤ。2. The pneumatic radial tire for a passenger car or light truck according to claim 1, wherein the groove depth of the narrow groove is 40 to 80% of the groove depth of the circumferential groove. 【請求項３】 該急傾斜溝は周方向に対して５乃至３０
度の小さな角度で傾斜した方向に延びていることを特徴
とする請求項１乃至２記載の乗用車乃至ライト・トラッ
ク用空気入りラジアル・タイヤ。3. The steeply inclined groove is 5 to 30 with respect to the circumferential direction.
3. The pneumatic radial tire for a car or light truck according to claim 1, wherein the tire extends in a direction inclined at a small angle.
JP07354497A 1997-03-26 1997-03-26 Pneumatic radial tires for passenger cars or light trucks traveling on rough roads Expired - Lifetime JP3720519B2 (en)

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Cited By (7)

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JP2000158916A (en) * 1998-11-27 2000-06-13 Bridgestone Corp Pneumatic tire
JP2002029224A (en) * 2000-07-18 2002-01-29 Bridgestone Corp Pneumatic tire
FR2924981A1 (en) * 2007-12-17 2009-06-19 Michelin Soc Tech TIRE TREAD FOR SNOW TIRE.
CN104648048A (en) * 2015-01-29 2015-05-27 潍坊市跃龙橡胶有限公司 Special all-steel radial truck tire for Middle East
CN105324253A (en) * 2013-07-05 2016-02-10 住友橡胶工业株式会社 Pneumatic tire
CN107685600A (en) * 2016-08-03 2018-02-13 横滨橡胶株式会社 Pneumatic tire
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DE102022211346A1 (en) * 2022-10-26 2024-05-02 Continental Reifen Deutschland Gmbh Pneumatic vehicle tires

Cited By (16)

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Publication number Priority date Publication date Assignee Title
JP2000158916A (en) * 1998-11-27 2000-06-13 Bridgestone Corp Pneumatic tire
JP2002029224A (en) * 2000-07-18 2002-01-29 Bridgestone Corp Pneumatic tire
JP4518641B2 (en) * 2000-07-18 2010-08-04 株式会社ブリヂストン Pneumatic tire
FR2924981A1 (en) * 2007-12-17 2009-06-19 Michelin Soc Tech TIRE TREAD FOR SNOW TIRE.
WO2009077499A1 (en) * 2007-12-17 2009-06-25 Société de Technologie Michelin Snow tyre tread
CN101903194A (en) * 2007-12-17 2010-12-01 米其林技术公司 Snow tyre tread
EA016642B1 (en) * 2007-12-17 2012-06-29 Сосьете Де Текноложи Мишлен Snow tyre tread
CN105324253A (en) * 2013-07-05 2016-02-10 住友橡胶工业株式会社 Pneumatic tire
EP3012119A1 (en) * 2013-07-05 2016-04-27 Sumitomo Rubber Industries, Ltd. Pneumatic tire
EP3012119A4 (en) * 2013-07-05 2017-03-29 Sumitomo Rubber Industries, Ltd. Pneumatic tire
CN105324253B (en) * 2013-07-05 2018-08-28 住友橡胶工业株式会社 Pneumatic tire
US10202007B2 (en) 2013-07-05 2019-02-12 Sumitomo Rubber Industries, Ltd. Pneumatic tire
CN104648048A (en) * 2015-01-29 2015-05-27 潍坊市跃龙橡胶有限公司 Special all-steel radial truck tire for Middle East
CN107685600A (en) * 2016-08-03 2018-02-13 横滨橡胶株式会社 Pneumatic tire
JP2018024420A (en) * 2016-08-03 2018-02-15 横浜ゴム株式会社 Pneumatic tire
EP3556575A1 (en) * 2018-04-18 2019-10-23 Sumitomo Rubber Industries, Ltd. Tyre

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