JPH04138902A - Pneumatic studless tire for heavy load - Google Patents
Pneumatic studless tire for heavy loadInfo
- Publication number
- JPH04138902A JPH04138902A JP2260467A JP26046790A JPH04138902A JP H04138902 A JPH04138902 A JP H04138902A JP 2260467 A JP2260467 A JP 2260467A JP 26046790 A JP26046790 A JP 26046790A JP H04138902 A JPH04138902 A JP H04138902A
- Authority
- JP
- Japan
- Prior art keywords
- tire
- block
- groove
- divided
- width direction
- 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
- 230000000694 effects Effects 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 230000007423 decrease Effects 0.000 description 3
- 101100008050 Caenorhabditis elegans cut-6 gene Proteins 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 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
- B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
- B60C11/1259—Depth of the sipe
- B60C2011/1268—Depth of the sipe being different from sipe to sipe
Landscapes
- Tires In General (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、耐偏摩耗性を低下するとなく氷上性能を向上
した重荷重用空気入りスタッドレスタイヤに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a heavy-duty pneumatic studless tire that has improved on-ice performance without reducing uneven wear resistance.
スパイクタイヤの製造、販売の禁止に伴い、スタッドレ
スタイヤの開発並びにその性能向上が強く要望されてい
る。現在開発されている重荷重用のスタッドレスタイヤ
は、氷上性能を向上する手段として、トレンドにブロッ
クパターンを設け、各ブロックにタイヤ巾方向の薄い切
り込みを形成し、これらブロックと薄い切り込みのエツ
ジ効果によって、氷上路面における制動性、駆動性を太
き（するようにしている。With the ban on the manufacture and sale of spiked tires, there is a strong demand for the development of studless tires and improved performance. Currently being developed, studless tires for heavy loads have a trendy block pattern as a means of improving performance on ice, and each block has a thin cut in the width direction of the tire.The edge effect of these blocks and thin cuts creates a Braking performance and drive performance on icy roads are increased.
しかしながら、このような従来のスタッドレスタイヤは
、薄い切り込みで細分された小ブロックの剛性が低下し
、第９図に示すように、各小ブロックの踏み込み側より
も蹴り上げ側の摩耗が大きくなるため、所謂ヒールアン
ドトウ摩耗と称する偏摩耗を生じ易いという問題があっ
た。However, in such conventional studless tires, the rigidity of the small blocks that are subdivided by thin cuts decreases, and as shown in Figure 9, the wear on the kick-up side of each small block is greater than on the push-in side. However, there was a problem in that uneven wear, so-called heel-and-toe wear, was likely to occur.
すなわち、氷上性能と耐偏摩耗性とは二律背反の関係に
あり、これらを両立させることが難しい課題となってい
た。In other words, on-ice performance and uneven abrasion resistance are in an antinomic relationship, and it has been difficult to achieve both.
本発明の目的は、ブロックパターンを有するタイヤの耐
偏摩耗性を確保しながら、氷上性能を向上した重荷重用
空気入りスタンドレスタイヤを提供することにある。An object of the present invention is to provide a heavy-duty pneumatic standless tire that improves on-ice performance while ensuring uneven wear resistance of a tire having a block pattern.
このような目的を達成する本発明は、タイヤ周方向に延
びる主溝と該主溝と交差する横溝とにより区画されたブ
ロックからなるブロックパターンを有し、ブロックにタ
イヤ巾方向の薄い切り込みを設けたスタッドレスタイヤ
において、前記ブロックを前記横溝よりも溝巾及び溝深
さがそれぞれ小さいタイヤ巾方向の細溝により二分割す
ると共に、この二分割されたブロックにそれぞれ１本ず
つのタイヤ巾方向の薄い切り込みを設けたことを特徴と
する。The present invention, which achieves such an object, has a block pattern consisting of blocks partitioned by a main groove extending in the circumferential direction of the tire and a lateral groove intersecting the main groove, and a thin cut in the width direction of the tire is provided in the block. In the studless tire, the block is divided into two by a thin groove in the width direction of the tire whose width and depth are smaller than the lateral groove, and each of the two divided blocks is provided with a thin groove in the width direction of the tire. It is characterized by having a notch.
このようにブロックパターンを構成するブロックを横溝
よりも溝巾及び溝深さの小さいタイヤ巾方向細溝で二分
割し、この分割された各ブロックにさらに薄い切り込み
を１本ずつ設けたから、ブロックのエツジ量を増加する
ことができるため、耐偏摩耗性を確保して氷上性能を向
上することができる。すなわち、本発明者らの研究結果
から、氷上制動のメカニズムとして、薄い切り込みによ
るエツジ効果よりもブロックのエツジ効果の方が大きい
ことが判り、上記細溝を設けることによりブロックエツ
ジを増量した結果、氷上性能を顕著に向上することがで
きたものである。In this way, the blocks that make up the block pattern are divided into two by narrow grooves in the tire width direction that are smaller in width and depth than the horizontal grooves, and each divided block is made with one thinner notch. Since the amount of edges can be increased, uneven wear resistance can be ensured and performance on ice can be improved. That is, from the research results of the present inventors, it was found that as a mechanism for braking on ice, the edge effect of the block is greater than the edge effect due to thin cuts, and as a result of increasing the block edge by providing the above-mentioned narrow grooves, It was able to significantly improve on-ice performance.
以下、図面を参照して本発明の詳細な説明する。Hereinafter, the present invention will be described in detail with reference to the drawings.
第１図イに示すように、本発明タイヤのトレッドパター
ンは、主溝１と横溝４とにより区画されたブロック３が
タイヤ周方向に配列されたブロック列から構成されてい
る。タイヤセンターＣＬ部のブロック３はタイヤ周方向
の２本の溝巾の小さい細溝（以下、周方向細溝という）
２で３つに分割され、また、両ショルダ一部のブロック
３は１本の周方向細溝２で２つに分割されている。これ
らの各ブロックは全て、タイヤ巾方向の細溝５ （以下
、巾方向細溝という）で二分割され、さらに分割された
各ブロックにはそれぞれ１本のタイヤ巾方向の薄い切り
込み６が設けられている。As shown in FIG. 1A, the tread pattern of the tire of the present invention is composed of block rows in which blocks 3 separated by main grooves 1 and lateral grooves 4 are arranged in the tire circumferential direction. The block 3 of the tire center CL section has two small grooves in the circumferential direction of the tire (hereinafter referred to as circumferential narrow grooves).
2 into three parts, and a part of the block 3 on both shoulders is divided into two parts by one circumferential narrow groove 2. All of these blocks are divided into two by a narrow groove 5 in the width direction of the tire (hereinafter referred to as a narrow groove in the width direction), and each divided block is each provided with a thin notch 6 in the width direction of the tire. ing.
第１図イのｘ−ｘ’断面である第１図口に示すように、
巾方向細溝５の溝巾すと溝深さｌは、いずれも横溝４の
溝巾Ｂと溝深さＬよりも小さくなっている。また、薄い
切り込み６の巾ｇと深さＳは、いずれも巾方向細溝５の
溝巾すと溝深さ！よりも小さくなっている。As shown in the opening of Figure 1, which is the xx' cross section of Figure 1 A,
The groove width and groove depth l of the widthwise narrow grooves 5 are both smaller than the groove width B and the groove depth L of the lateral grooves 4. In addition, the width g and depth S of the thin cut 6 are both the width of the narrow groove 5 in the width direction and the groove depth! It is smaller than.
第２〜５図は、本発明タイヤの他のブロックパターンの
例を示す平面図である。2 to 5 are plan views showing examples of other block patterns of the tire of the present invention.
第２図は、タイヤセンターＣＬ部のブロック３は２本の
周方向細溝２で３つに分割されているが、両ショルダ一
部のブロック３は周方向細溝２で分割されていない構成
のパターンである。In Fig. 2, the block 3 at the tire center CL section is divided into three parts by two circumferential narrow grooves 2, but some blocks 3 on both shoulders are not divided by the circumferential narrow grooves 2. This is the pattern.
しかし、これらのブロック３は全て、巾方向細溝５で二
分割され、かつ分割された各ブロックには薄い切り込み
６が１本ずつ設けられている。However, all of these blocks 3 are divided into two by a narrow groove 5 in the width direction, and each divided block is provided with one thin cut 6.
第３図は第２図において、両ショルダ一部のブロック３
を周方向細溝２で２分割したパターンである。Figure 3 shows block 3 of both shoulders in Figure 2.
This pattern is divided into two by circumferential thin grooves 2.
また、第４図は第３図において、周方向細溝２で二分割
された両ショルダ一部のブロック３中の主溝１側のブロ
ック３ｓと、周方向細溝２で三分割されたにセンターＣ
Ｌ部のブロック３中の真中のブロック３ｓを部分的に太
溝化した１本の薄い切り込み７を設けたパターンである
。In addition, FIG. 4 shows a block 3s on the main groove 1 side in a part of both shoulders divided into two by the circumferential narrow groove 2 in FIG. Center C
This is a pattern in which one thin cut 7 is provided by partially making the middle block 3s of the blocks 3 in the L section into a thick groove.
さらに第５図は第４図において、周方向細溝２で二分割
された両ショルダ一部のブロック３を巾方向細溝５では
なくて、部分的に大溝化した１本の薄い切り込み７で二
分割した例である。Furthermore, in FIG. 5, in FIG. 4, a part of the block 3 which is divided into two by the circumferential narrow groove 2 is formed not by the width direction narrow groove 5 but by one thin notch 7 which is partially made into a large groove. This is an example of dividing into two parts.
ブロックに形成する巾方向細溝は、横溝の溝巾及び溝深
さよりも小さいことが必要である。The narrow grooves formed in the width direction of the block need to be smaller than the width and depth of the lateral grooves.
この巾方向細溝の溝巾と溝深さを横溝のそれらよりも大
きくすると、ブロックの剛性の低下が大きくなりすぎて
、耐偏摩耗性が損なわれ、他方、細溝の溝巾及び溝深さ
が余りに狭くなり過ぎると、薄い切り込みと変わらない
ものとなり、優れた氷上性能向上効果を発揮するブロッ
クエツジが得られない。このため、巾方向細溝の溝巾す
は、第１図口に示すように、ブロックの周方向長さと横
溝の溝巾Ｂとの和で示されるピッチ長Ｐの０．０３倍〜
０．０８倍の範囲にすることが望ましい。また、巾方向
細溝の溝深さｌは主溝の溝深さＤの０．５倍〜０．８倍
で、かつ横溝の溝深さＬより小さり、薄い切り込みの深
さＳより大きくすることが望ましい。If the width and depth of the narrow grooves in the width direction are made larger than those of the horizontal grooves, the rigidity of the block will decrease too much and uneven wear resistance will be impaired. If the cut is too narrow, it will be no different from a thin cut, and it will not be possible to obtain a block edge that can improve on-ice performance. Therefore, the width of the narrow groove in the width direction is 0.03 times the pitch length P, which is the sum of the circumferential length of the block and the groove width B of the lateral groove, as shown in Figure 1.
A range of 0.08 times is desirable. In addition, the groove depth l of the narrow groove in the width direction is 0.5 to 0.8 times the groove depth D of the main groove, and is smaller than the groove depth L of the lateral groove and larger than the depth S of the thin cut. It is desirable to do so.
また、薄い切り込みは、巾方向細溝で二分割された各ブ
ロックに、それぞれ１本宛設ける必要がある。２本以上
設けると、ブロックの剛性の低下を大きくし、耐偏摩耗
性を悪化させる。Further, it is necessary to provide one thin cut in each block divided into two by a narrow groove in the width direction. If two or more are provided, the rigidity of the block will be greatly reduced and the uneven wear resistance will be deteriorated.
また、薄い切り込みの巾ｇと深さＳは、そのエツジ効果
とブロックの剛性のバランスを考慮し、巾ｇを１．２ｍ
ｍ以下とし、その深さＳを主溝の溝深ざＤの０．４倍〜
０．７倍の範囲にするのがよい。In addition, the width g and depth S of the thin cut were determined by considering the balance between the edge effect and the rigidity of the block, and the width g was set to 1.2 m.
m or less, and the depth S is 0.4 times the groove depth D of the main groove.
It is preferable to set the range to 0.7 times.
一方、横溝は、排雪性、排水性等のタイヤ性能を考慮す
ると、その溝巾Ｂを主溝の溝巾以下で、かつピッチ長Ｐ
の０゜１倍〜０．３倍の範囲とし、その溝深さＬを主溝
の溝深さＤの０．６倍〜１．０倍の範囲にすることが望
ましい。On the other hand, when considering tire performance such as snow removal and drainage, the width of the lateral groove should be less than or equal to the width of the main groove, and the pitch length should be P.
It is desirable that the groove depth L is in the range of 0.6 to 1.0 times the groove depth D of the main groove.
さらに周方向細溝は、必ずしも設ける必要はなく、その
溝巾及び溝深さも特に限定されるものではない。通常、
巾方向細溝の溝巾及び溝深さに準じた溝巾及び溝深さに
することができる。Further, the circumferential narrow groove does not necessarily need to be provided, and the groove width and groove depth are not particularly limited. usually,
The groove width and groove depth can be made to be similar to the groove width and groove depth of the widthwise narrow groove.
これらの横溝と巾方向細溝の溝巾と溝深さ並びに薄い切
り込みの巾や深さを調整することにより、エツジ効果を
より一層効果高めることができ、ブロックの剛性の低下
を抑制して、偏摩耗を防止し、かつその駆動時の倒れ込
みによる接地性の低下やブロック欠は等を防止すること
が可能である。By adjusting the width and depth of these horizontal grooves and narrow grooves in the width direction, as well as the width and depth of the thin cuts, the edge effect can be further enhanced, suppressing the decrease in rigidity of the block, It is possible to prevent uneven wear and to prevent deterioration of ground contact and block chipping due to falling during driving.
巾方向細溝と薄い切り込みの方向は、本発明のブロック
のエツジ効果を高める上で、タイヤラジアル方向、好ま
しくはタイヤ周方向に対して９０６〜７０°の範囲内の
角度で設けるのがよい。In order to enhance the edge effect of the block of the present invention, the direction of the widthwise narrow groove and the thin cut is preferably provided at an angle within a range of 906 to 70 degrees with respect to the tire radial direction, preferably the tire circumferential direction.
その形状は好ましくは直線状がよいが、曲線や段階状な
どの形状をとることができる。また、薄い切り込みは、
第４図と第５図に示したように、部分的に大溝化するこ
とができる。The shape is preferably a straight line, but it can also be curved or stepped. In addition, thin cuts are
As shown in FIGS. 4 and 5, it is possible to partially form large grooves.
実施例１、比較例１〜３
第１図イ１口に示したトレッドパターンを有する本発明
タイヤ及び第６〜８図イ１口に示すトレッドパターンを
有する比較タイヤＩ〜■を製作した。Example 1, Comparative Examples 1 to 3 Tires of the present invention having the tread pattern shown in Fig. 1 A1 and comparative tires I to B having the tread patterns shown in Figs. 6 to 8 B1 were manufactured.
これらのタイヤのトレッド面に形成した主溝の溝深さＤ
、横溝の溝巾Ｂと溝深さし、巾方向細溝の溝巾すと溝深
さｌ、Ｗｉい切り込みの巾ｇと深さＳは、それぞれ表に
示す通りいずれも同一とした。Groove depth D of the main groove formed on the tread surface of these tires
, the groove width B and groove depth of the horizontal groove, the groove width L and the groove depth L of the narrow groove in the width direction, and the width g and depth S of the narrow cut were all the same as shown in the table.
また、これらのタイヤサイズは、いずれも同一の１０．
００ Ｒ２０とした。Moreover, these tire sizes are all the same 10.
00 R20.
これら４種類のタイヤについて、次の耐偏摩耗性、氷上
制動性、雪上制動性を評価した。These four types of tires were evaluated for uneven wear resistance, braking performance on ice, and braking performance on snow.
■員１に盟：
テスト車二輪形式 ２・Ｄ（８トン車）、（ＪＩＳに規
定されている最大荷重、空気圧の条件で）乾燥路面を２
．ＯＯＯＫｍ走行した後、第９図に示すブロック３のヒ
ールアンドトウ段差量Ｓを測定し、比較タイヤＩの測定
値を１００とする指数で示した。この指数値が大きいほ
ど耐偏摩耗性が優れている。■Member 1: Test vehicle 2-wheel type 2-D (8 ton vehicle), (under conditions of maximum load and air pressure specified in JIS) dry road surface 2
．． After traveling OOOKm, the heel-and-toe level difference S of block 3 shown in FIG. 9 was measured and expressed as an index, with the measured value of comparative tire I being 100. The larger this index value is, the better the uneven wear resistance is.
氷上■獣性：
テスト車：軸形式 ２・Ｄ（８トン車）、氷盤上を初速
３０Ｋｍで走行し、制動した時の制動距離を測定し、そ
の逆数で示した。比較タイヤＩの測定値を１００とする
指数で示した。この指数値が大きいほど氷上制動性が優
れている。■ Performance on Ice: Test vehicle: Axle type 2-D (8 ton vehicle), traveled on ice floes at an initial speed of 30 km, braking distance was measured and expressed as the reciprocal. The measured value of Comparative Tire I was expressed as an index with 100 as the measured value. The larger the index value, the better the braking performance on ice.
雪上■監性：
テスト車：軸形式 ２・Ｄ（８トン車）、圧雪路面を初
速４０Ｋｍ／ｈｒで走行し、制動した時の制動距離を測
定し、その逆数で示した。■Supervision on snow: Test vehicle: Axle type 2-D (8 ton vehicle), traveled on a compacted snow road at an initial speed of 40 km/hr, measured the braking distance, and expressed it as the reciprocal.
比較タイヤ■の測定値を１００とする指数で示した。こ
の指数値が大きいほど雪上制動性が優れている。It is expressed as an index, with the measured value of comparative tire ■ being set as 100. The larger the index value, the better the braking performance on snow.
上表から、比較タイヤ■は比較タイヤＩと対比すると、
氷上制動性が向上するものの耐偏摩耗性の低下が著しい
。また、比較タイヤ■は氷上制動性は向上するが、耐偏
摩耗性の低下が著しく、雪上制動性も低下している。こ
れに対して、本発明タイヤは、氷上制動性が大幅に向上
しており、しかも比較タイヤＩ並の耐偏摩耗性と雪上制
動性を実質的に保持していることが判る。From the table above, when comparison tire ■ is compared with comparison tire I,
Although the braking performance on ice is improved, the uneven wear resistance is significantly reduced. Furthermore, although the comparative tire (3) has improved braking performance on ice, its uneven wear resistance has significantly decreased, and its braking performance on snow has also decreased. In contrast, it can be seen that the tire of the present invention has significantly improved braking performance on ice, and also substantially maintains uneven wear resistance and braking performance on snow comparable to Comparative Tire I.
本発明によれば、ブロックパターンを有する重荷重用空
気入リスタラドレスタイヤにおいて、ブロックを横溝よ
りも溝巾および溝深さが小さいタイヤ巾方向の細溝によ
り二分割すると共に、この二分割された各ブロックにタ
イヤ巾方向の薄い切り込みを１本ずつ設けたから、耐偏
摩耗性に影響を及ぼすブロックの剛性を実質的に低下さ
せることなく、薄い切り込みエツジに比べてエツジ効果
の大きなブロックエツジを増量することができ、これに
よって、耐偏摩耗性を損なうことなく、氷上性能を大幅
に向上させることができる。According to the present invention, in a heavy-duty pneumatic listerless tire having a block pattern, the block is divided into two by a narrow groove in the width direction of the tire having a groove width and groove depth smaller than the horizontal groove, and Since each block has one thin notch in the width direction of the tire, the block edge has a greater edge effect than a thin notch edge without substantially reducing the rigidity of the block that affects uneven wear resistance. As a result, on-ice performance can be significantly improved without impairing uneven wear resistance.
第１図イは本発明のタイヤのブロックパターンの１例を
示す平面図、第１図口は第１図のＸＸ′線拡線断大断面
図２〜第５図は、それぞれ本発明タイヤの他のブロック
パターンの例を示す平面図、第６〜８図は、それぞれ比
較タイヤのブロックパターンの１例を示す平面図、第９
図はヒールアンドトウ摩耗したブロックの断面図である
。
１・・・主溝、２・・・周方向細溝、３・・・ブロック
、４・・・横溝、５・・・巾方向細溝、６・・・薄い切
り込み、Ｂ・・・横溝の溝巾、Ｌ・・・横溝の溝深さ、
ｂ・・・巾方向細溝の溝巾、！・・・巾方向細溝の溝深
さ、ｇ・・・薄い切り込みの巾、Ｓ・・・薄い切り込み
の深さ。FIG. 1A is a plan view showing an example of the block pattern of the tire of the present invention, and FIG. FIGS. 6 to 8 are plan views showing examples of other block patterns, and FIGS.
The figure is a cross-sectional view of a block with heel-and-toe wear. 1... Main groove, 2... Circumferential narrow groove, 3... Block, 4... Horizontal groove, 5... Width direction narrow groove, 6... Thin cut, B... Horizontal groove Groove width, L... Groove depth of horizontal groove,
b... Groove width of the narrow groove in the width direction! ...Groove depth of the narrow groove in the width direction, g...Width of the thin cut, S...Depth of the thin cut.
Claims (1)
より区画されたブロックからなるブロックパターンを有
し、ブロックにタイヤ巾方向の薄い切り込みを設けたス
タッドレスタイヤにおいて、前記ブロックを前記横溝よ
りも溝巾及び溝深さがそれぞれ小さいタイヤ巾方向の細
溝により二分割すると共に、この二分割されたブロック
にそれぞれ１本ずつのタイヤ巾方向の薄い切り込みを設
けた重荷重用空気入りスタッドレスタイヤ。In a studless tire having a block pattern consisting of blocks partitioned by a main groove extending in the tire circumferential direction and a lateral groove intersecting the main groove, and in which a thin cut in the tire width direction is provided in the block, the block is removed from the lateral groove. This heavy-duty pneumatic studless tire is divided into two blocks by narrow grooves in the tire width direction with small groove width and groove depth, and each of the two divided blocks is provided with one thin cut in the tire width direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2260467A JP3018097B2 (en) | 1990-10-01 | 1990-10-01 | Pneumatic studless tires for heavy loads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2260467A JP3018097B2 (en) | 1990-10-01 | 1990-10-01 | Pneumatic studless tires for heavy loads |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04138902A true JPH04138902A (en) | 1992-05-13 |
| JP3018097B2 JP3018097B2 (en) | 2000-03-13 |
Family
ID=17348358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2260467A Expired - Lifetime JP3018097B2 (en) | 1990-10-01 | 1990-10-01 | Pneumatic studless tires for heavy loads |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3018097B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11129709A (en) * | 1997-10-30 | 1999-05-18 | Toyo Tire & Rubber Co Ltd | Pneumatic tire |
| EP1428688A2 (en) * | 2002-12-10 | 2004-06-16 | Continental Aktiengesellschaft | Vehicle pneumatic tire for use under winter drive conditions |
| JP2010155519A (en) * | 2008-12-26 | 2010-07-15 | Bridgestone Corp | Pneumatic tire |
| JP2014037213A (en) * | 2012-08-20 | 2014-02-27 | Yokohama Rubber Co Ltd:The | Heavy load pneumatic tire |
| CN104816595A (en) * | 2007-09-18 | 2015-08-05 | 株式会社普利司通 | Pneumatic tire |
| JP2021091359A (en) * | 2019-12-12 | 2021-06-17 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Pneumatic tire |
| US20210331525A1 (en) * | 2020-04-28 | 2021-10-28 | The Yokohama Rubber Co., Ltd. | Tire |
| US20210387480A1 (en) * | 2020-06-16 | 2021-12-16 | Sumitomo Rubber Industries, Ltd. | Tire |
-
1990
- 1990-10-01 JP JP2260467A patent/JP3018097B2/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11129709A (en) * | 1997-10-30 | 1999-05-18 | Toyo Tire & Rubber Co Ltd | Pneumatic tire |
| EP1428688A2 (en) * | 2002-12-10 | 2004-06-16 | Continental Aktiengesellschaft | Vehicle pneumatic tire for use under winter drive conditions |
| EP1428688A3 (en) * | 2002-12-10 | 2004-07-07 | Continental Aktiengesellschaft | Vehicle pneumatic tire for use under winter drive conditions |
| EP1693230A2 (en) * | 2002-12-10 | 2006-08-23 | Continental Aktiengesellschaft | Vehicle pneumatic tire for use under winter drive conditions |
| EP1693230A3 (en) * | 2002-12-10 | 2008-07-16 | Continental Aktiengesellschaft | Vehicle pneumatic tire for use under winter drive conditions |
| CN104816595A (en) * | 2007-09-18 | 2015-08-05 | 株式会社普利司通 | Pneumatic tire |
| JP2010155519A (en) * | 2008-12-26 | 2010-07-15 | Bridgestone Corp | Pneumatic tire |
| JP2014037213A (en) * | 2012-08-20 | 2014-02-27 | Yokohama Rubber Co Ltd:The | Heavy load pneumatic tire |
| JP2021091359A (en) * | 2019-12-12 | 2021-06-17 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Pneumatic tire |
| US20210331525A1 (en) * | 2020-04-28 | 2021-10-28 | The Yokohama Rubber Co., Ltd. | Tire |
| US20210387480A1 (en) * | 2020-06-16 | 2021-12-16 | Sumitomo Rubber Industries, Ltd. | Tire |
| US11772428B2 (en) * | 2020-06-16 | 2023-10-03 | Sumitomo Rubber Industries, Ltd. | Tire |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3018097B2 (en) | 2000-03-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9061551B2 (en) | Pneumatic tire | |
| JPS6192902A (en) | Pneumatic radial tyre for heavy loading | |
| JPH02216304A (en) | Tire for snow/ice covered road | |
| CN103826873A (en) | Pneumatic tire | |
| JP2007153338A (en) | Tread of tire for large-size vehicle | |
| JPH11189013A (en) | Pneumatic tire | |
| JP2001233021A (en) | Land part structure for pneumatic tire | |
| JPS63134312A (en) | Pneumatic radial tire for heavy load | |
| JPS6160308A (en) | Tyre for heavy vehicle | |
| JPH0310910A (en) | Heavy duty pneumatic tire | |
| JP3113388B2 (en) | Pneumatic tire | |
| JP2876450B2 (en) | Pneumatic radial tire | |
| JP3686041B2 (en) | Pneumatic tire | |
| JPH09188110A (en) | Pneumatic radial tire for heavy load | |
| JPH06143941A (en) | Pneumatic tire | |
| JP2000225814A (en) | Pneumatic tire | |
| JPH11151914A (en) | Pneumatic tire | |
| JPH0310913A (en) | Pneumatic tire | |
| JPH04138902A (en) | Pneumatic studless tire for heavy load | |
| JP4354385B2 (en) | Pneumatic tire | |
| JPH05162511A (en) | Tire for heavy load | |
| JPH0253611A (en) | Pneumatic heavy-load radial tire | |
| JP2001146104A (en) | Pneumatic tire | |
| JPH04365608A (en) | Pneumatic studless tire for heavy load | |
| JPH03186403A (en) | Pneumatic tire for use on ice-snow road |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090107 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090107 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100107 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110107 Year of fee payment: 11 |
|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110107 Year of fee payment: 11 |