JP2000142032A - Pneumatic radial tire for heavy load for traveling on icy and snowy road - Google Patents
Pneumatic radial tire for heavy load for traveling on icy and snowy roadInfo
- Publication number
- JP2000142032A JP2000142032A JP10319269A JP31926998A JP2000142032A JP 2000142032 A JP2000142032 A JP 2000142032A JP 10319269 A JP10319269 A JP 10319269A JP 31926998 A JP31926998 A JP 31926998A JP 2000142032 A JP2000142032 A JP 2000142032A
- Authority
- JP
- Japan
- Prior art keywords
- tire
- circumferential direction
- pneumatic radial
- width
- icy
- 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
- B60C2200/00—Tyres specially adapted for particular applications
- B60C2200/06—Tyres specially adapted for particular applications for heavy duty vehicles
Landscapes
- Tires In General (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、氷雪路走行用重荷
重空気入りラジアルタイヤに関し、さらに詳しくは、耐
横滑り性能を一層向上した氷雪路走行用重荷重空気入り
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 traveling on icy and snowy roads, and more particularly, to a heavy-duty pneumatic radial tire for traveling on icy and snowy roads with further improved skid resistance.
【０００２】[0002]
【従来の技術】氷上での耐横滑り性能を向上する重荷重
空気入りラジアルタイヤのトレッドパターンとして、図
３に示すようにブロックパターンの中にタイヤ周方向に
延在する細リブを設けるようにしたパターンが知られて
いる。図３に示すトレッドパターンでは、タイヤ周方向
Ａに延在する複数本の主溝１およびタイヤ幅方向に延在
する複数本のサブ溝２により、多数のブロック３を形成
するとともに、一部の主溝１内にタイヤ周方向Ａに所定
長さで延在する細リブ４が設けられ、これら細リブ４の
エッジ効果により横滑りを防止するようにしたものであ
る。2. Description of the Related Art As a tread pattern of a heavy-duty pneumatic radial tire for improving skid resistance on ice, a thin rib extending in the tire circumferential direction is provided in a block pattern as shown in FIG. Patterns are known. In the tread pattern shown in FIG. 3, a large number of blocks 3 are formed by a plurality of main grooves 1 extending in the tire circumferential direction A and a plurality of sub-grooves 2 extending in the tire width direction. Thin ribs 4 are provided in the main groove 1 and extend at a predetermined length in the tire circumferential direction A, and side edges are prevented by the edge effect of these thin ribs 4.
【０００３】しかしながら、この従来のトレッドパター
ンでは細リブ４の幅が狭く剛性が低いため、走行条件に
よっては細リブ４が主溝１内に逃げてしまい、細リブ４
のエッジ効果が減少して十分な耐横滑り性能が得られな
いという問題があった。また、上記細リブ４が逃げるこ
とにより偏摩耗を招き、ますます耐横滑り性能を低下さ
せる要因になっていた。However, in this conventional tread pattern, the width of the narrow ribs 4 is narrow and the rigidity is low, so that the narrow ribs 4 escape into the main groove 1 depending on running conditions, and the narrow ribs 4
However, there is a problem that the edge effect is reduced and sufficient skid resistance cannot be obtained. Further, the escape of the fine ribs 4 causes uneven wear, which is a factor that further reduces the skid resistance.
【０００４】[0004]
【発明が解決しようとする課題】本発明の目的は、耐横
滑り性能を向上するようにした氷雪路走行用重荷重空気
入りラジアルタイヤを提供することである。SUMMARY OF THE INVENTION An object of the present invention is to provide a heavy-load pneumatic radial tire for traveling on icy and snowy roads, which has improved skid resistance.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決する本発
明の氷雪路走行用重荷重空気入りラジアルタイヤは、ト
レッド面にタイヤ周方向に延長する複数本の主溝と、こ
れら主溝に区分された複数の陸部を形成し、該陸部のタ
イヤ周方向に沿って一方の縁部から中間部まで延びるラ
グ溝と、他方の縁部から中間部まで延びるラグ溝とを交
互に形成し、かつ互いにタイヤ周方向に隣接する前記ラ
グ溝の内端部をタイヤ周方向に延長する２本のサイプで
連結し、これら２本のサイプの両外側に位置する幅広の
大陸部と、該２本のサイプの内側に挟まれる前記大陸部
よりも幅狭の小陸部とを形成したことを特徴としてい
る。According to the present invention, there is provided a heavy-load pneumatic radial tire for running on icy and snowy roads, which comprises a plurality of main grooves extending in a tire circumferential direction on a tread surface; A plurality of land portions are formed, and a lug groove extending from one edge to an intermediate portion along the tire circumferential direction of the land portion and a lug groove extending from the other edge to the intermediate portion are alternately formed. And the inner ends of the lug grooves adjacent to each other in the tire circumferential direction are connected by two sipes extending in the tire circumferential direction, and a wide continent portion located on both outer sides of the two sipes; A small land portion narrower than the continent portion sandwiched between book sipe portions is formed.
【０００６】本発明の氷雪路走行用重荷重空気入りラジ
アルタイヤにおいては、タイヤ周方向に延長するように
形成した陸部に対し、その両縁部からタイヤ周方向に交
互にラグ溝を中間部まで形成し、互いにタイヤ周方向に
隣接するラグ溝の内端部をタイヤ周方向に延長する２本
のサイプで連結することにより、これら２本のサイプの
両外側に位置する幅広の大陸部と、内側に挟まれる幅狭
の小陸部とを形成したので、この小陸部により従来の細
リブ相当のエッジ効果を得ることができる。しかも、こ
の小陸部の全長の両側がサイプであるため、小陸部が横
力を受けても、その全長が両側のサイプ内に逃げるとい
った変形を生ずることがなくエッジ効果を発揮すること
ができるとともに、小陸部の偏摩耗を防止できる。従っ
て、本発明によれば氷雪路走行用重荷重空気入りラジア
ルタイヤの耐横滑り性能を向上することができる。In the heavy-load pneumatic radial tire for running on icy and snowy roads of the present invention, a lug groove is alternately provided in the tire circumferential direction from both edges of the land portion formed to extend in the tire circumferential direction. And the inner ends of the lug grooves adjacent to each other in the tire circumferential direction are connected by two sipes extending in the tire circumferential direction, thereby forming a wide continental portion located on both outer sides of these two sipes. , And a narrow land portion sandwiched inward, an edge effect equivalent to a conventional thin rib can be obtained by the land portion. Moreover, since both sides of the shore portion are sipe, even if the shore portion receives a lateral force, the edge effect can be exhibited without deformation such that the entire length escapes into the sipe on both sides. It is possible to prevent uneven wear of the land area. Therefore, according to the present invention, the anti-skid performance of the heavy-load pneumatic radial tire for traveling on icy and snowy roads can be improved.
【０００７】[0007]
【発明の実施の形態】以下、本発明の実施の形態を図を
用いて説明する。図１は本発明の氷雪路走行用重荷重空
気入りラジアルタイヤのドレッドパターンの一例を示す
平面図である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing an example of a dread pattern of a heavy-duty pneumatic radial tire for traveling on an icy road according to the present invention.
【０００８】このトレッドパターンでは、トレッドの表
面にタイヤ周方向Ａに３本の主溝１１が延在し、この主
溝１１により４本の陸部１３が分割形成されている。こ
の陸部１３には、そのタイヤ周方向に沿って左側の縁部
から右側へ中間部まで侵入するラグ溝６と、右側の縁部
から左側へ中間部まで侵入するラグ溝７とが、交互に配
置されている。これらのラグ溝６、７の内端部６ｅ、７
ｅはタイヤ周方向Ａに投影したとき互いに重複するよう
になっている。In this tread pattern, three main grooves 11 extend in the tire circumferential direction A on the surface of the tread, and four land portions 13 are divided by the main grooves 11. In the land portion 13, a lug groove 6 that intrudes from the left edge to the right to the middle along the tire circumferential direction, and a lug groove 7 that intrudes from the right edge to the left to the middle, alternately. Are located in Inner ends 6e, 7 of these lug grooves 6, 7
e overlap each other when projected in the tire circumferential direction A.
【０００９】そして、タイヤ周方向Ａに隣接しているラ
グ溝６、７の内端部６ｅ、７ｅ間に２本の略平行なサイ
プ８、９が連通するように設けられている。このサイプ
８、９により、その内側に小陸部１４が、その外側に小
陸部１４よりも幅広の大陸部１５がそれぞれ形成されて
いる。Two substantially parallel sipes 8, 9 are provided between the inner ends 6e, 7e of the lug grooves 6, 7 adjacent in the tire circumferential direction A so as to communicate with each other. The sipees 8 and 9 form a continent portion 14 inside and a continental portion 15 wider than the continent portion 14 outside.
【００１０】このドレッドパターンを有する氷雪路走行
用重荷重空気入りラジアルタイヤでは、タイヤ周方向Ａ
に延在する陸部１３に、その両縁部からタイヤ周方向Ａ
に対して交互に他方へ中間部まで延びるラグ溝６、７が
配置されていて、そのラグ溝６、７の内端部６ｅ、７ｅ
の間を２本のサイプ８、９で連結することにより小陸部
１４を形成し、この小陸部１４を従来の細リブに相当す
るエッジ形成部としている。この小陸部１４では横力を
受けても、全長の両側がサイプ８、９であるため、小陸
部１４が両側のサイプ８、９内に逃げるといった変形を
生ずることなく、効率よくエッジ効果を発揮することが
でき、かつ、小陸部１４の偏摩耗を防止できる。従っ
て、氷雪路走行用重荷重空気入りラジアルタイヤの耐横
滑り性能を向上することができる。In the heavy-duty pneumatic radial tire for running on ice and snow having the dread pattern, in the tire circumferential direction A
To the land portion 13 extending in the tire circumferential direction A from both edges.
And lug grooves 6 and 7 extending alternately to the intermediate portion are arranged on the other side, and inner end portions 6e and 7e of the lug grooves 6 and 7 are arranged.
Are connected by two sipes 8 and 9 to form a small land portion 14, which is an edge forming portion corresponding to a conventional thin rib. Even when a lateral force is applied to the small land portion 14, the sipe 8, 9 is provided on both sides of the entire length, so that the small land portion 14 does not deform into the sipe 8, 9 on both sides, and the edge effect is efficiently generated. Can be exhibited, and uneven wear of the land portion 14 can be prevented. Therefore, the anti-skid performance of the heavy-load pneumatic radial tire for traveling on icy and snowy roads can be improved.
【００１１】本発明において、主溝の本数は特に限定さ
れないが、好ましくは２〜６本、特に好ましくは３〜４
本が好適である。主溝１１の本数が６本より多いと陸部
の幅ｗが狭くなるため重荷重用ラジアルタイヤとして耐
摩耗性が低下し、一方、主溝の本数が２本より少ないと
小陸部の数が低下してエッジ部分が少なくなるので、耐
横滑り性が低下する。In the present invention, the number of the main grooves is not particularly limited, but is preferably 2 to 6, particularly preferably 3 to 4.
Books are preferred. If the number of the main grooves 11 is more than 6, the width w of the land portion becomes narrow, so that the wear resistance as a heavy duty radial tire decreases. On the other hand, if the number of the main grooves is less than 2, the number of the land portions becomes small. As a result, the edge portion decreases and the skid resistance decreases.
【００１２】本発明において、ラグ溝のタイヤ周方向の
間隔（ピッチ）ａは、陸部の幅（最大幅）ｗに対して
０．２０ｗ〜０．６０ｗ（０．２０ｗ≦ａ≦０．６０
ｗ）にすることが好ましい。０．２０ｗよりも小さくな
ると氷上での耐横滑り性能を従来タイヤに対して１１０
％以上のレベルに維持することが難しくなる。また、
０．６０ｗよりも大きくすると、耐横滑り性能は向上す
るが、ラグ溝の数が低減するため雪上性能（制・駆動
性）が低下する。In the present invention, the interval (pitch) a of the lug grooves in the tire circumferential direction is 0.20 w to 0.60 w (0.20 w ≦ a ≦ 0.60 w) relative to the width (maximum width) w of the land portion.
w) is preferable. When it is smaller than 0.20w, the anti-skid performance on ice is reduced by 110 to the conventional tire.
It will be difficult to maintain the level above%. Also,
When it is larger than 0.60 w, the skid resistance is improved, but the number of lug grooves is reduced, so that the on-snow performance (braking / driving) is reduced.
【００１３】また、小陸部の幅ｃは、陸部の幅（最大
幅）ｗに対して０．１５ｗ〜０．３０ｗ（０．１５ｗ≦
ｃ≦０．３０ｗ）にすることが好ましい。０．１５ｗよ
りも狭くすると、小陸部１４の剛性の低下により、耐横
滑り性能を従来タイヤに対して１１０％以上のレベルに
維持することが難しくなる。また、０．３０ｗよりも幅
広になると、大陸部１５の幅が相対的に低下して大陸部
の剛性が低下するため、小陸部ではなく大陸部に偏摩耗
が発生し、耐偏摩耗性が低下する。The width c of the small land portion is 0.15 w to 0.30 w (0.15 w ≦) with respect to the width (maximum width) w of the land portion.
c ≦ 0.30w). If the width is smaller than 0.15 w, it becomes difficult to maintain the anti-skid performance at a level of 110% or more of the conventional tire due to a decrease in rigidity of the land portion 14. On the other hand, if the width is larger than 0.30 w, the width of the continental portion 15 is relatively reduced, and the rigidity of the continental portion is reduced. Decrease.
【００１４】サイプの幅ｂは、０．５〜２．５ｍｍが好
ましい。０．５ｍｍより狭いサイプは金型の製作上から
限界がある。また、２．５ｍｍより大きくすると、小陸
部の逃げ場が広くなり、耐横滑り性及び耐偏摩耗性が低
下する。The width b of the sipe is preferably 0.5 to 2.5 mm. A sipe smaller than 0.5 mm has a limit in terms of mold production. On the other hand, if it is larger than 2.5 mm, the escape area in the small land area is widened, and the skid resistance and the uneven wear resistance are reduced.
【００１５】[0015]
【実施例】タイヤサイズが１１Ｒ２２．５で、図１およ
び２のトレッドパターンを有し、主溝１１の幅が１２ｍ
ｍ、陸部の幅ｗが５０ｍｍ、およびラグ溝６、７の幅が
７ｍｍである点を同一にし、ラグ溝の間隔ａ、サイプの
幅ｂ、小陸部の幅ｃを表１〜３のように異ならせた実施
例タイヤを製作した。DESCRIPTION OF THE PREFERRED EMBODIMENTS The tire size is 11R22.5, has the tread pattern shown in FIGS. 1 and 2, and the width of the main groove 11 is 12 m.
m, the land portion width w is 50 mm, and the lug grooves 6 and 7 have the same width of 7 mm. The lug groove interval a, sipe width b, and small land width c are shown in Tables 1 to 3. Example tires were made different as described above.
【００１６】また、タイヤサイズが１１Ｒ２２．５で、
図３のトレッドパターンを有し、主溝１１の幅が９ｍ
ｍ、サブ溝２の幅が実施例タイヤのラグ溝の幅と同じ７
ｍｍ、細リブ４を介して両側に配置される２つのブロッ
ク３の最大幅ｗ’が５２ｍｍ、細リブ４の長さの基準と
なるピッチ長さａ’が１．００ｗ’、ブロック３と細リ
ブ４との間隙ｂ’が２．５ｍｍ、細リブ４の幅が０．１
５ｗ’の従来タイヤを製作した。Also, when the tire size is 11R22.5,
It has the tread pattern of FIG. 3, and the width of the main groove 11 is 9 m.
m, the width of the sub groove 2 is the same as the width of the lug groove of the example tire 7
mm, the maximum width w 'of the two blocks 3 arranged on both sides via the thin rib 4 is 52 mm, the pitch length a' which is the reference of the length of the thin rib 4 is 1.00 w ', The gap b ′ with the rib 4 is 2.5 mm, and the width of the thin rib 4 is 0.1
A 5 w 'conventional tire was manufactured.
【００１７】上記実施例タイヤおよび従来タイヤについ
て、それぞれ下記に説明する測定方法により氷上性（耐
横滑り性能）、雪上性（雪上制動性能）、及び耐偏摩耗
性能を測定し、それぞれの結果を表１〜３に示した。 氷上性（耐横滑り性能）：２２．５×７．５０のリムに
取り付け、空気圧７００Ｐａとし、１０ｔ定積載重量の
２Ｄ・４形式のトラックの全輪に装着し、横方向への傾
斜角度が５°の氷盤路で１０ｋｍ／ｈの速度から急制動
を行い、車両の横方向への滑り量を測定した。評価は滑
り量の逆数をもって行い、従来タイヤの測定値を１００
とする指数で表示した。この数値が大きいほど耐横滑り
性能が優れている。With respect to the above-described example tire and the conventional tire, the on-ice property (side skid resistance), the on-snow property (braking performance on snow), and the uneven wear resistance were measured by the measurement methods described below, and the respective results were tabulated. 1 to 3. On ice (anti-slip performance): Mounted on a 22.5 × 7.50 rim, with air pressure of 700 Pa, mounted on all wheels of a 2D / 4-type truck with a constant loading weight of 10 tons, and a tilt angle in the lateral direction of 5 The vehicle was suddenly braked on a icy road at a speed of 10 km / h, and the amount of slip of the vehicle in the lateral direction was measured. The evaluation was performed using the reciprocal of the amount of slip.
It was indicated by an index. The larger this value is, the better the skid resistance is.
【００１８】雪上性（雪上制動性能）：同一条件で前記
のトラックに装着し、雪上を速度４０ｋｍ／ｈで走行し
ている状態からロック制動したときの制動距離を測定し
た。評価は制動距離の逆数をもって行い、従来のタイヤ
の測定値を１００とする指数で表示した。この数値が大
きいほど雪上制動性能が優れている。On-snow performance (snow-on braking performance): The braking distance was measured when the vehicle was mounted on the above-described truck under the same conditions and the vehicle was running on snow at a speed of 40 km / h and the brakes were locked. The evaluation was performed using the reciprocal of the braking distance, and was expressed as an index with the measured value of a conventional tire being 100. The larger this value is, the better the braking performance on snow is.
【００１９】耐偏摩耗性能：同一条件で前記のトラック
に装着し、周回路からなるテストコースを３０，０００
ｋｍ走行した後、小陸部及び大陸部における最大摩耗部
と最小摩耗部との段差量を測定した。評価は逆数をもっ
て行い、従来タイヤの測定値を１００とする指数とし、
小陸部及び大陸部の指数のうち小さい値を表示した。こ
の数値が大きいほど耐偏摩耗性能が優れている。Uneven wear resistance: Mounted on the above-mentioned truck under the same conditions, and a test course consisting of a peripheral circuit was 30,000.
After traveling km, the level difference between the maximum wear portion and the minimum wear portion in the small land area and the continental area was measured. The evaluation was performed using the reciprocal number, and the index was set to the measured value of the conventional tire as 100.
The smaller value of the index of the continent and the continent was displayed. The larger the value, the better the uneven wear resistance.
【００２０】[0020]
【表１】 [Table 1]
【００２１】[0021]
【表２】 [Table 2]
【００２２】[0022]
【表３】 [Table 3]
【００２３】[0023]
【発明の効果】以上詳述の通り、本発明によれば、トレ
ッド面にタイヤ周方向に延長する複数本の主溝により複
数の陸部を形成し、陸部のタイヤ周方向に沿って一方の
縁部から中間部まで延びるラグ溝と、他方の縁部から中
間部まで延びるラグ溝とを交互に形成し、隣接するラグ
溝の内端部を２本のサイプで連結し、これら２本のサイ
プの両外側に位置する幅広の大陸部と、その２本のサイ
プの内側に挟まれる幅狭の小陸部とを形成したので、小
陸部が横力を受けてもその全長の両側がサイプであるた
め、小陸部が両側のサイプ内に逃げるといった変形を生
じることがなく、小陸部のエッジ効果を効率よく発揮で
きるとともに、小陸部の偏摩耗を防止でき、氷雪路走行
用重荷重空気入りラジアルタイヤの耐横滑り性能を向上
することができる。As described above in detail, according to the present invention, a plurality of land portions are formed on the tread surface by a plurality of main grooves extending in the tire circumferential direction. A lug groove extending from the edge to the intermediate portion and a lug groove extending from the other edge to the intermediate portion are alternately formed, and the inner ends of adjacent lug grooves are connected by two sipes. A wide continent located on both sides of the sipe and a narrow continent sandwiched between the two sipe, so that both sides of the full length of the sipe even if it receives lateral force Is a sipe, so the landform does not deform into the sipe on both sides, so the edge effect of the landform can be efficiently exhibited, uneven wear of the landform can be prevented, and traveling on ice and snow roads Side skid performance of heavy duty pneumatic radial tires can be improved
【図１】本発明の氷雪路走行用重荷重空気入りラジアル
タイヤのドレッドパターンの一例を示す平面図である。FIG. 1 is a plan view showing an example of a dread pattern of a heavy-duty pneumatic radial tire for traveling on an icy road according to the present invention.
【図２】図１のトレッドパターンの一部の拡大図であ
る。FIG. 2 is an enlarged view of a part of the tread pattern of FIG.
【図３】従来の氷上性能を向上させたトレッドバターン
の一例を示す平面図である。FIG. 3 is a plan view showing an example of a conventional tread pattern with improved on-ice performance.
１、１１ 主溝 １３ 陸部 ６、７ ラグ溝 ６ｅ、７ｅ 内端部 ８、９ サイプ １４ 小陸部 １５ 大陸部 1,11 Main groove 13 Land 6,7 Lug groove 6e, 7e Inner end 8,9 Sipe 14 Small land 15 Mainland
Claims (5)
数本の主溝と、これら主溝に区分された複数の陸部を形
成し、該陸部のタイヤ周方向に沿って一方の縁部から中
間部まで延びるラグ溝と、他方の縁部から中間部まで延
びるラグ溝とを交互に形成し、かつ互いにタイヤ周方向
に隣接する前記ラグ溝の内端部をタイヤ周方向に延長す
る２本のサイプで連結し、これら２本のサイプの両外側
に位置する幅広の大陸部と、該２本のサイプの内側に挟
まれる前記大陸部よりも幅狭の小陸部とを形成した氷雪
路走行用重荷重空気入りラジアルタイヤ。1. A plurality of main grooves extending in a tire circumferential direction on a tread surface, and a plurality of land portions divided into the main grooves are formed, and one edge portion of the land portion along the tire circumferential direction is formed. 2. A lug groove extending from the other end to the intermediate portion and a lug groove extending from the other edge to the intermediate portion are alternately formed, and the inner ends of the lug grooves adjacent to each other in the tire circumferential direction extend in the tire circumferential direction. Ice and snow linked by two sipes to form a wide continent located on both outer sides of these two sipes, and a continent narrower than the continents sandwiched between the two sipes Heavy-duty pneumatic radial tire for road running.
項１に記載の氷雪路走行用重荷重空気入りラジアルタイ
ヤ。2. The heavy-load pneumatic radial tire for running on icy and snowy roads according to claim 1, wherein the number of the main grooves is two to six.
溝の間隔ａを前記陸部の幅ｗに対して０．２０ｗ≦ａ≦
０．６０ｗの関係にした請求項１または２に記載の氷雪
路走行用重荷重空気入りラジアルタイヤ。3. The distance a between the lug grooves adjacent to each other in the tire circumferential direction is 0.20 w ≦ a ≦ with respect to the width w of the land portion.
The heavy-duty pneumatic radial tire for running on icy roads according to claim 1 or 2, wherein the radial tire has a relationship of 0.60w.
して０．１５ｗ≦ｃ≦０．３０ｗの関係にした請求項
１、２、または３に記載の氷雪路走行用重荷重空気入り
ラジアルタイヤ。4. The traveling road for icy and snowy roads according to claim 1, wherein the width c of the small land portion has a relationship of 0.15w ≦ c ≦ 0.30w with the width w of the land portion. Heavy-load pneumatic radial tire.
ｍである請求項１〜４に記載の氷雪路走行用重荷重空気
入りラジアルタイヤ。5. The sipe has a width of 0.5 mm to 2.5 m.
5. The heavy-load pneumatic radial tire for traveling on icy and snowy roads according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10319269A JP2000142032A (en) | 1998-11-10 | 1998-11-10 | Pneumatic radial tire for heavy load for traveling on icy and snowy road |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10319269A JP2000142032A (en) | 1998-11-10 | 1998-11-10 | Pneumatic radial tire for heavy load for traveling on icy and snowy road |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000142032A true JP2000142032A (en) | 2000-05-23 |
Family
ID=18108331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10319269A Pending JP2000142032A (en) | 1998-11-10 | 1998-11-10 | Pneumatic radial tire for heavy load for traveling on icy and snowy road |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000142032A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006240365A (en) * | 2005-03-01 | 2006-09-14 | Bridgestone Corp | Pneumatic tire |
| JP2009101846A (en) * | 2007-10-23 | 2009-05-14 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
| JP2018177032A (en) * | 2017-04-14 | 2018-11-15 | 住友ゴム工業株式会社 | Tire |
-
1998
- 1998-11-10 JP JP10319269A patent/JP2000142032A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006240365A (en) * | 2005-03-01 | 2006-09-14 | Bridgestone Corp | Pneumatic tire |
| JP2009101846A (en) * | 2007-10-23 | 2009-05-14 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
| JP4525727B2 (en) * | 2007-10-23 | 2010-08-18 | 横浜ゴム株式会社 | Pneumatic tire |
| JP2018177032A (en) * | 2017-04-14 | 2018-11-15 | 住友ゴム工業株式会社 | Tire |
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