JPH0130641B2 - - Google Patents

Info

Publication number
JPH0130641B2
JPH0130641B2 JP54024369A JP2436979A JPH0130641B2 JP H0130641 B2 JPH0130641 B2 JP H0130641B2 JP 54024369 A JP54024369 A JP 54024369A JP 2436979 A JP2436979 A JP 2436979A JP H0130641 B2 JPH0130641 B2 JP H0130641B2
Authority
JP
Japan
Prior art keywords
tire
slits
tread
slit
winter
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.)
Expired
Application number
JP54024369A
Other languages
Japanese (ja)
Other versions
JPS54124405A (en
Inventor
Eruberoo Ibu
Fureshutone Sharuru
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.)
MISHURAN E CO JENERAARU DE ZETABURISUMAN MISHURAN
Original Assignee
MISHURAN E CO JENERAARU DE ZETABURISUMAN MISHURAN
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 MISHURAN E CO JENERAARU DE ZETABURISUMAN MISHURAN filed Critical MISHURAN E CO JENERAARU DE ZETABURISUMAN MISHURAN
Publication of JPS54124405A publication Critical patent/JPS54124405A/en
Publication of JPH0130641B2 publication Critical patent/JPH0130641B2/ja
Granted 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
    • 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
    • B60C11/124—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special arrangements in the tread pattern inclined with regard to a plane normal to the tread surface
    • 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
    • B60C11/1204—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special shape of the sipe
    • B60C2011/1213—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special shape of the sipe sinusoidal or zigzag at the tread surface

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は、トレツドに複数の突出部を備えた冬
期走行用タイヤに関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a winter running tire having a plurality of protrusions on the tread.

（従来の技術） フランス特許第759592号及びフランス追加特許
第43383号により、脂じみた地面または湿つた地
面に対するタイヤの接地性を改良するため、トレ
ツドの突出部を多数の相互に近接したスリツトに
よつて、いくつかの切片部に分割する事は公知で
ある。フランス特許第779108号によれば、この種
のスリツトまたは切込みを形成するため、適当形
状の薄い金属片を型の内壁面の中に配置する方法
が記述されている。型そのものの製造と、加硫さ
れたタイヤの型抜きとを容易にするため、トレツ
ド面に対して垂直のスリツトのみを使用するので
あるが、これらのスリツトのタイヤ周方向に対す
る線図は任意とする事ができる。(Prior Art) According to French Patent No. 759,592 and French Patent of Addition No. 43,383, the protrusion of the tread is formed with a number of mutually adjacent slits in order to improve the contact of the tire on greasy or damp ground. Therefore, it is known to divide into several sections. French Patent No. 779108 describes a method in which a suitably shaped thin metal piece is placed in the inner wall of a mold in order to form slits or incisions of this type. In order to facilitate the manufacturing of the mold itself and the cutting out of the cured tire, only slits perpendicular to the tread surface are used, but the diagram of these slits in the tire circumferential direction is arbitrary. I can do that.

またこれらの特許は、スリツトをトレツド面に
対して垂直に備える代りに、このトレツト面に対
して若干の傾斜を示す事ができると記述してい
る。 These patents also state that instead of having the slits perpendicular to the tread plane, they can be slightly inclined to the tread plane.

（発明が解決しようとする問題点） 上記形式のタイヤに設けられた垂直スリツトは
雪上及び氷上の接着性を改良するものであるが、
冬期用タイヤは雪も氷もない道路上を走行する事
が多く、その場合、一定走行キロ数を走つたのち
に雪または氷の上に出た時、タイヤが雪や氷にな
じんでいないので垂直スリツトによる利点が低減
する。この様な現象は、各スリツトの前縁（地面
に接するタイヤの応力方向に見た前縁）が丸くな
るのと同時に現れる。隣接の二本のスリツトによ
つて限定されたかくゴム切片部の変形によつて、
この様な丸味が生じる。難変形性カーカスによつ
てトレツドを安定したラジアルカーカス型タイヤ
においてこの現象は特に顕著である。(Problems to be Solved by the Invention) Although the vertical slits provided in the above type of tire improve adhesion on snow and ice,
Winter tires are often used on roads without snow or ice, and in that case, when you hit the snow or ice after driving a certain number of kilometers, the tires may not have acclimatized to the snow or ice. The advantages of vertical slits are reduced. This phenomenon occurs at the same time as the leading edge of each slit (the leading edge seen in the stress direction of the tire in contact with the ground) becomes rounded. Due to the deformation of the rubber section limited by two adjacent slits,
This kind of roundness is produced. This phenomenon is particularly noticeable in radial carcass type tires whose tread is stabilized by a carcass that is difficult to deform.

本発明は上記した点に鑑みてなされたもので、
スリツトによつて限定された切片部の前縁が丸く
なり、雪上または氷上のタイヤ接地性の低下を生
じることのないようにした冬期走行用タイヤを提
供することを目的とする。 The present invention has been made in view of the above points, and
To provide a tire for winter driving in which the front edge of a cut section defined by a slit is not rounded and the tire's ground contact performance on snow or ice is not deteriorated.

（問題点を解決するための手段） 本発明の冬期用タイヤは、トレツドに２つの溝
によつて画成され、かつ相互に離間したスリツト
によつて限定された切片部を有する複数の突出要
素と、少なくとも２本の互に交差したコード層か
らなるトレツド補強体により包囲されたラジアル
カーカスを備え、スリツトは負荷状態では閉じら
れるようなゼロでない巾を有し、無負荷状態で
は、スリツトはタイヤトレツドの垂線に対して、
地面から生ずる接線応力方向に最低0.5゜、最高45゜
の角度αで傾斜し、かつ負荷状態では、この傾斜
が所定角度増加するよう構成されている。(Means for Solving the Problems) The winter tire of the present invention has a plurality of projecting elements defined in the tread by two grooves and having a cut section defined by mutually spaced slits. and a radial carcass surrounded by a tread reinforcement consisting of at least two intersecting cord layers, the slits having a non-zero width such that they are closed in the loaded condition, and in the unloaded condition the slits are closed to the tire tread. With respect to the perpendicular line of
It is configured to be inclined at an angle α of a minimum of 0.5° and a maximum of 45° in the direction of tangential stress originating from the ground, and this inclination increases by a predetermined angle in a loaded state.

（作 用） 本発明の冬期走行用タイヤにおいては、突出要
素材に設けた傾斜したスリツトにより、切片部の
前縁の丸くなる現象を防ぎ、またスリツトに巾を
もたせることで接地性能がよくなる。(Function) In the winter running tire of the present invention, the inclined slit provided in the protruding element prevents the leading edge of the section from becoming rounded, and the width of the slit improves ground contact performance.

（実施例） 以下、本発明を図面に示す実施例について詳細
に説明する。(Example) Hereinafter, an example of the present invention shown in the drawings will be described in detail.

本発明の冬期用タイヤのトレツドは、少なくと
も２本の互に交差したコード層からなるトレツド
補強体により包囲されたラジアルカーカス補強体
を備えている。 The tread of the winter tire of the present invention comprises a radial carcass reinforcement surrounded by a tread reinforcement consisting of at least two intersecting cord layers.

第１図は、本発明によるスリツト１１を備えた
タイヤのトレツド（図示せず）の１個の突出要素
１０を示す。突出要素１０が深さＨの２つの溝９
によつて画成されている。スリツト１１は相互に
僅かに離間し、その中間に切片部１２を限定して
いる。またこれらのスリツト１１は巾“ｅ”を有
する。スリツト１１の一方の側壁１３はトレツド
の面１４と共に前縁部１５を成し、他方の側壁１
３′は切片部１２の逃げ縁部１６を成している。 FIG. 1 shows one projecting element 10 of a tire tread (not shown) with a slit 11 according to the invention. The protruding elements 10 form two grooves 9 of depth H.
is defined by. The slits 11 are slightly spaced apart from each other and define a section 12 in the middle. These slits 11 also have a width "e". One side wall 13 of the slit 11 forms a front edge 15 together with the surface 14 of the tread, and the other side wall 1
3' constitutes a relief edge 16 of the cut section 12.

スリツト１１はトレツドに対する垂線Ｎに対し
て鋭角αを成す。順次形成した切片部１２の傾斜
度αは、最高30゜の範囲内で変動する事ができる。 The slit 11 forms an acute angle α with respect to the normal N to the tread. The inclination α of the successively formed sections 12 can vary within a maximum range of 30°.

上記深さＨに略等しいスリツトの深さｈもスリ
ツト毎に最高0.5の割合で変動する事ができる。 The depth h of the slit, which is approximately equal to the above-mentioned depth H, can also vary by a maximum of 0.5 from slit to slit.

図示の実施例において、スリツト１１はタイヤ
の回転方向Ｆに傾斜している。これらのスリツト
１１は、加速に際して作用する。制動に際して作
用するためには、これらのスリツトを回転方向Ｆ
の反対方向に傾斜させる事が望ましい。同様に、
遠心加速に対抗作用するスリツトは、トレツドに
対する垂線に対して、タイヤ外部に向つて傾斜し
なければならない。 In the illustrated embodiment, the slit 11 is inclined in the direction of rotation F of the tire. These slits 11 act upon acceleration. In order to act during braking, these slits must be aligned in the direction of rotation F.
It is desirable to tilt it in the opposite direction. Similarly,
The slits acting against centrifugal acceleration must be inclined towards the outside of the tire with respect to the perpendicular to the tread.

新しいタイヤが地面に接地すると、第１図の突
出要素１０の切片部１２は、第２図に示すように
変形し、スリツト１１は巾がゼロになる。これら
のスリツト１１が存在するので、スリツト１１の
傾斜角度αが増大してα′となり、逃げ縁部１６の
みが地面１７と接触する。新しいタイヤを一定時
間運転走行すると、切片部１２の接地面１４はそ
の最初の状態（第１図）に対して傾斜角度を変更
し、試運転後の荷重を受けていないタイヤ（第３
図）の傾斜接地面１４′と成る事が分かる。この
様にして、切片部１２の逃げ縁部１６の摩耗の結
果、第４図に示すように、タイヤが地面に接地し
た時、隣接の切片部１２の前縁部１５を周方向に
突出させる。 When a new tire touches the ground, the section 12 of the protruding element 10 in FIG. 1 is deformed as shown in FIG. 2, and the slit 11 has a zero width. Due to the presence of these slits 11, the angle of inclination α of the slits 11 increases to α', so that only the relief edge 16 is in contact with the ground 17. When a new tire is driven for a certain period of time, the contact surface 14 of the section 12 changes its inclination angle with respect to its initial state (Fig.
It can be seen that this results in an inclined ground plane 14' as shown in the figure. In this way, as a result of the wear of the clearance edge 16 of the section 12, when the tire touches the ground, the leading edge 15 of the adjacent section 12 protrudes in the circumferential direction, as shown in FIG. .

本発明によれば、切片部の傾斜とその巾に応じ
て、試運転中の切片部接地面の摩耗面を配向し、
切片部の前縁部の突出度を決定してこれを保持す
る事が可能である。故に本発明の効果は、実際上
タイヤトレツドの摩耗度とは無関係である。 According to the present invention, the wear surface of the contact surface of the section portion during the trial run is oriented according to the inclination of the section section and its width,
It is possible to determine and maintain the degree of protrusion of the front edge of the section. Therefore, the effects of the present invention are practically independent of the degree of tire tread wear.

荷重をかけられていないタイヤについて測定さ
れたスリツトの傾斜度αの適当値は最低0.5゜、最
高45゜である。 Suitable values for the inclination α of the slit, measured for an unloaded tire, are a minimum of 0.5° and a maximum of 45°.

一例として、縦方向接地を強化するための切片
部の場合に、本発明による前縁部の成す角度の変
動は下記の式によつて計算される。 By way of example, in the case of a section for enhancing longitudinal ground contact, the variation in the angle formed by the leading edge according to the invention is calculated by the following formula:

―Ｐをスリツトのピツチ、すなわち荷重を受けて
いないタイヤの切片集合体の中の隣接接片の逃
げ縁の間の距離とし、 ―αを垂線に対るスリツトの傾斜度とし、 ―α′をタイヤに対する圧潰荷重作用を受けた接片
部の曲げによるスリツトの傾斜度とし、 ―ｅをスリツトの側壁に対して直角に測定された
スリツトの巾とし、 ―Ｅを切片部の厚、Ｅ＝Pcps〓-eとし、 ―Ｒをタイヤの半径とし、 ―ｄをトレツド表面から、カーカスまでの距離と
すれば、 切片部のピツチＰは、タイヤの中心を０、トレ
ツドを含むタイヤの半径をＲとした場合に Ｐ＝Ｒ・dθ 一方カーカスレベルにおける切片部のピツチ
P′は、トレツド表面からカーカスまでの距離がｄ
であるから、 P′＝（Ｒ―ｄ）・dθ したがつて P′／Ｐ＝（Ｒ−ｄ）・dθ／Ｒ・dθ ＝（Ｒ−ｄ）／Ｒ 他方、第１図に示す突出要素の無荷重状態では
切片部は第５図に示す状態にあり、また第２図に
示す突出要素の荷重を受けた状態では切片部は第
６図に示す状態にある。- Let P be the pitch of the slit, i.e. the distance between the clearance edges of adjacent tangents in a collection of unloaded tire sections, - α be the inclination of the slit with respect to the vertical, - α' be The inclination of the slit due to the bending of the contact piece under the crushing load applied to the tire, -e is the width of the slit measured perpendicular to the side wall of the slit, -E is the thickness of the cut piece, E=P cps = -e , -R is the radius of the tire, -d is the distance from the tread surface to the carcass, then the pitch P of the section is 0 for the center of the tire and R for the radius of the tire including the tread. In this case, P=R・dθ On the other hand, the pitch of the section at the carcass level is
P′ is the distance d from the tread surface to the carcass.
Therefore, P′=(R−d)・dθ Therefore, P′/P=(R−d)・dθ/R・dθ =(R−d)/R On the other hand, the protruding element shown in FIG. In the unloaded state, the section is in the state shown in FIG. 5, and in the state under the load of the protruding element shown in FIG. 2, the section is in the state shown in FIG.

第５図において Ｅ＝ABcps〓-e ＝Pcps〓-e 第６図において cosα′＝Ｅ／A′B′ 上式においてA′B′＝P′であり P′／Ｐ＝（Ｒ−ｄ）／Ｒであるから cosα′＝Ｅ／（Ｒ−ｄ）・Ｐ／Ｒ ＝Ｅ／Ｐ・Ｒ／（Ｒ−ｄ） 本発明によるタイヤを使用した場合における突
出要素の摩耗による前縁部角度の減少度rAは、新
しいタイヤの前縁部角度ｒと摩耗後のタイヤの前
縁部角度r′の差になり、 第６図および第７図に示すように、 rA＝ｒ−r′＝β＝α′−α すなわち角度差（α′−α）になる。 In Figure 5, E = AB cps 〓 -e = P cps 〓 -e In Figure 6, cosα' = E/A'B' In the above equation, A'B' = P', and P'/P = (R- d) /R, so cos α′ = E/(R-d)・P/R = E/P・R/(R-d) Leading edge due to wear of the protruding element when using the tire according to the present invention The degree of decrease in angle r A is the difference between the leading edge angle r of the new tire and the leading edge angle r' of the worn tire, and as shown in Figures 6 and 7, r A = r- r'=β=α'-α, that is, the angle difference (α'-α).

実際に、上記の式によつて、切片部の前縁角に
つき０〜20゜の摩耗変動を生じる事が推奨される。 In fact, the above formula recommends a wear variation of 0 to 20 degrees for the leading edge angle of the section.

上記の説明において、スリツトとは、その深さ
方向及び／または長さ方向において直線的スリツ
トを意味するのみならず、どの様な断面でも（縦
断面、横断面または斜断面）曲線、波形等、直線
以外の任意の線図のスリツトをも意味するものと
する。 In the above explanation, a slit does not only mean a straight slit in the depth direction and/or length direction, but also a slit in any cross section (longitudinal, transverse or oblique cross section), curved, wavy, etc. It shall also mean a slit in any diagram other than a straight line.

〔発明の効果〕〔Effect of the invention〕

以上述べたように本発明によれば、タイヤトレ
ツドに設けた突出要素の前縁部の丸くなる現象が
なくなり、接地性能が従来のものに比べて向上す
るという効果を奏する。 As described above, according to the present invention, the phenomenon in which the leading edge of the protruding element provided on the tire tread becomes rounded is eliminated, and the ground contact performance is improved compared to the conventional tire tread.

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

第１図は本発明によるタイヤトレツドの突出要
素の無荷重状態を示す縦断面図、第２図は同突出
要素の荷重を受けた状態を示す縦断面図、第３図
はタイヤ試運転後の突出要素の無荷重状態を示す
縦断面図、第４図は同突出要素の荷重を受けた状
態を示す縦断面図、第５図は新しいタイヤの突出
要素の無荷重状態における切片部の状態を示す
図、第６図は新しいタイヤの突出要素の荷重を受
けた状態における切片部の状態を示す図、第７図
はタイヤ使用開始後の前縁部角度の減少度を計算
するための説明図である。 １０……突出要素、１１……スリツト、１２…
…切片部、１３，１３′……切片部壁面、１５…
…前縁部、１６……逃げ縁部、Ｆ……タイヤの回
転方向。 FIG. 1 is a longitudinal cross-sectional view showing the protruding element of the tire tread according to the present invention in an unloaded state, FIG. 2 is a longitudinal cross-sectional view showing the protruding element in a loaded state, and FIG. 3 is a longitudinal cross-sectional view showing the protruding element after a tire trial run. Fig. 4 is a longitudinal cross-sectional view showing the protruding element in a loaded state, Fig. 5 is a diagram showing the state of the section of the protruding element of a new tire in the unloaded state. , FIG. 6 is a diagram showing the state of the section section under the load of the protruding element of a new tire, and FIG. 7 is an explanatory diagram for calculating the degree of decrease in the leading edge angle after the start of use of the tire. . 10... protruding element, 11... slit, 12...
... Section part, 13, 13' ... Section part wall surface, 15...
...Front edge, 16... Relief edge, F... Tire rotation direction.

Claims (1)

【特許請求の範囲】 １ トレツドには２つの溝によつて画成され、か
つ相互に離間したスリツトによつて限定された切
欠部を有する複数の突出要素が設けられており、
少なくとも２本の互に交差したコード層からなる
トレツド補強体により包囲されたラジアルカーカ
スを備えている冬期用タイヤにおいて、スリツト
１１は負荷状態では閉じられるようにゼロでない
巾ｅを有し、無負荷状態では、スリツト１１はタ
イヤトレツドの垂線Ｎに対して最低0.5゜、最高45゜
の角度αで傾斜し、かつ、負荷状態では、この傾
斜が所定角度増加することを特徴とする冬期走行
用タイヤ。 ２ スリツト１１がタイヤ回転方向と反対の方向
に傾斜していることを特徴とする特許請求の範囲
第１項記載の冬期走行用タイヤ。 ３ スリツト１１がタイヤ回転方向に傾斜してい
ることを特徴とする特許請求の範囲第１項記載の
冬期走行用タイヤ。 ４ タイヤ外部に向かつて傾斜したスリツトを備
えた突出要素１０を有することを特徴とする特許
請求の範囲第１項ないし第３項のいずれか１項に
記載の冬期走行用タイヤ。 ５ 順次形成された切片部の傾斜角度αは最高
30゜の範囲内で変動することを特徴とする特許請
求の範囲第１項ないし第４項のいずれか１項に記
載の冬期走行用タイヤ。 ６ 一方の側壁１３，１３′に対して垂直に測定
された切片部１２の巾Ｅはタイヤの放射方向また
は軸方向に変動することを特徴とする特許請求の
範囲第１項に記載の冬期走行用タイヤ。Claims: 1. The tread is provided with a plurality of projecting elements having cutouts defined by two grooves and defined by mutually spaced slits,
In winter tires with a radial carcass surrounded by a tread reinforcement consisting of at least two intersecting cord layers, the slits 11 have a non-zero width e such that they are closed in the loaded state and are unloaded. In this tire, the slit 11 is inclined at an angle α of at least 0.5° and at most 45° with respect to the perpendicular N of the tire tread in the loaded state, and this inclination increases by a predetermined angle in the loaded state. 2. The winter running tire according to claim 1, wherein the slits 11 are inclined in a direction opposite to the tire rotation direction. 3. The winter running tire according to claim 1, wherein the slits 11 are inclined in the tire rotation direction. 4. The winter running tire according to any one of claims 1 to 3, characterized in that the protruding element 10 has a slit that is inclined toward the outside of the tire. 5 The inclination angle α of the sequentially formed sections is the highest
The winter running tire according to any one of claims 1 to 4, characterized in that the angle varies within a range of 30°. 6. Winter driving according to claim 1, characterized in that the width E of the section 12 measured perpendicularly to one side wall 13, 13' varies in the radial direction or the axial direction of the tire. tires.
JP2436979A 1978-03-03 1979-03-02 Tire for traveling in winter Granted JPS54124405A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7806394A FR2418719A1 (en) 1978-03-03 1978-03-03 TIRE FOR RIDING ON SNOW

Publications (2)

Publication Number Publication Date
JPS54124405A JPS54124405A (en) 1979-09-27
JPH0130641B2 true JPH0130641B2 (en) 1989-06-21

Family

ID=9205407

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2436979A Granted JPS54124405A (en) 1978-03-03 1979-03-02 Tire for traveling in winter

Country Status (16)

Country Link
JP (1) JPS54124405A (en)
AT (1) AT367690B (en)
BE (1) BE874496A (en)
CA (1) CA1098017A (en)
CH (1) CH628293A5 (en)
DE (1) DE2908219A1 (en)
DK (1) DK151092C (en)
ES (1) ES478246A1 (en)
FI (1) FI790714A (en)
FR (1) FR2418719A1 (en)
GB (1) GB2017597B (en)
IT (1) IT1119673B (en)
LU (1) LU80985A1 (en)
NL (1) NL180734C (en)
NO (1) NO790720L (en)
SE (1) SE459854B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2461602A1 (en) * 1979-07-24 1981-02-06 Michelin & Cie PNEUMATIC FOR ROLLING ON SNOW
DE3146362A1 (en) * 1981-02-23 1982-09-02 The General Tire & Rubber Co., 44329 Akron, Ohio TIRE WITH IMPROVED TREAD
FR2544251B1 (en) * 1983-04-12 1986-05-09 Michelin & Cie RELIEF ELEMENTS OF A TIRE TREAD COMPRISING WAVY OR BROKEN TRACK INCISIONS
DE3324649A1 (en) * 1983-07-08 1985-01-31 Continental Gummi-Werke Ag, 3000 Hannover VEHICLE TIRES
JPS60240507A (en) * 1984-05-15 1985-11-29 Sumitomo Rubber Ind Ltd Low noise multi-siping tire
JPS6168907U (en) * 1984-10-13 1986-05-12
JPH0741777B2 (en) * 1986-04-14 1995-05-10 オ−ツタイヤ株式会社 Studless pneumatic tire
GB2192842B (en) * 1986-06-13 1991-01-30 Bridgestone Corp Pneumatic tire
FR2643312B1 (en) * 1989-02-22 1991-07-26 Michelin & Cie "HEAVYWEIGHT" TIRE TREAD, WITH CENTRAL RIBS WITH INCLINED INCISIONS
DE4232308A1 (en) * 1992-09-26 1994-03-31 Continental Ag Radial tyre with more uniform wear - has raised blocks sepd. by longitudinal and lateral grooves with block trailing edges longer than leading edges.
DE4232306C2 (en) * 1992-09-26 1995-09-21 Continental Ag Directional vehicle tire with transverse grooves
FR2703002B1 (en) * 1993-03-25 1995-06-02 Michelin & Cie Tread for radial tire having elements in relief provided with incisions.
JP3312784B2 (en) * 1993-07-28 2002-08-12 株式会社ブリヂストン Pneumatic tire
JP3366737B2 (en) * 1994-06-29 2003-01-14 株式会社ブリヂストン Pneumatic tire
DE19650655C2 (en) * 1996-12-06 2000-08-24 Continental Ag Vehicle tires with cuts in the tread
US6412531B1 (en) * 1999-07-15 2002-07-02 Michelin Recherche Et Technique S.A. Tire tread having groove walls with compound contours
DE60209956T2 (en) * 2001-05-14 2006-11-30 Société de Technologie Michelin Tread with inclination variable sipes containing ribs
JP4777547B2 (en) * 2001-06-29 2011-09-21 株式会社ブリヂストン Pneumatic tire
JP4223064B2 (en) 2007-06-12 2009-02-12 横浜ゴム株式会社 Pneumatic tire
JP4397956B1 (en) * 2008-07-02 2010-01-13 横浜ゴム株式会社 Pneumatic tire
JP4442709B2 (en) 2008-09-12 2010-03-31 横浜ゴム株式会社 Pneumatic tire
FR2956356B1 (en) 2010-02-12 2012-06-08 Michelin Soc Tech TIRE FOR TWO - WHEELED VEHICLES COMPRISING A BEARING BAND HAVING A CIRCONFERENTIALLY CONTINUOUS CUT.
FR2956354A1 (en) 2010-02-12 2011-08-19 Michelin Soc Tech TIRE FOR TWO - WHEELED VEHICLES COMPRISING A BEARING BAND HAVING INCISIONS.
FR2956357B1 (en) 2010-02-12 2012-05-18 Michelin Soc Tech TIRE FOR TWO - WHEELED VEHICLES COMPRISING A BEARING BAND HAVING INCISIONS.
FR2956355B1 (en) 2010-02-12 2012-05-18 Michelin Soc Tech TIRE FOR TWO - WHEELED VEHICLES COMPRISING A BEARING BAND HAVING INCISIONS.
FR2964600B1 (en) * 2010-09-09 2014-08-22 Michelin Soc Tech TIRE TREAD FOR TIRES
JP5947532B2 (en) * 2011-12-09 2016-07-06 株式会社ブリヂストン Pneumatic tire
DE102011056762A1 (en) * 2011-12-21 2013-06-27 Continental Reifen Deutschland Gmbh Arrangement of pneumatic vehicle tires on a vehicle
FR2998511B1 (en) 2012-11-29 2014-12-26 Michelin & Cie TIRE TREAD FOR SNOW TIRES HAVING INCISIONS AND CAVITIES
JP6353934B2 (en) 2014-06-30 2018-07-04 コンパニー ゼネラール デ エタブリッスマン ミシュラン Tire tread having a tread element with an inclined leading side
FR3034356B1 (en) 2015-04-01 2018-08-10 Compagnie Generale Des Etablissements Michelin PNEUMATIC COMPRISING A TREAD
WO2018101933A1 (en) * 2016-11-30 2018-06-07 Compagnie Generale Des Etablissements Michelin Improved tire treads having positively inclined sipes
JP7085427B2 (en) * 2018-07-10 2022-06-16 Ｔｏｙｏ Ｔｉｒｅ株式会社 Pneumatic tires

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FR759592A (en) * 1932-11-08 1934-02-05 Michelin & Cie Tire improvement
FR43383E (en) * 1933-02-21 1934-05-11 Michelin & Cie Tire improvement
US2240542A (en) * 1934-09-29 1941-05-06 Michelin & Cie Tire
FR819836A (en) * 1936-06-29 1937-10-27 Wheel tire, rubber
US2339558A (en) * 1942-03-21 1944-01-18 Firestone Tire & Rubber Co Tire
GB727207A (en) * 1952-06-24 1955-03-30 Goodrich Co B F Improvements in or relating to a high speed tire
US3817308A (en) * 1966-10-14 1974-06-18 Tokyo Yakuhin Kaihatsu K K Method of preparing a water-soluble powder containing active components from mineral spring waters of spas and product produced thereby
FR2461602A1 (en) * 1979-07-24 1981-02-06 Michelin & Cie PNEUMATIC FOR ROLLING ON SNOW

Also Published As

Publication number Publication date
GB2017597A (en) 1979-10-10
JPS54124405A (en) 1979-09-27
NL180734C (en) 1987-04-16
FR2418719B1 (en) 1980-09-05
NL180734B (en) 1986-11-17
IT7967456A0 (en) 1979-03-02
SE459854B (en) 1989-08-14
GB2017597B (en) 1982-08-04
AT367690B (en) 1982-07-26
SE7901861L (en) 1979-09-04
ES478246A1 (en) 1979-11-01
DE2908219C2 (en) 1990-09-06
DK151092C (en) 1988-06-20
DK151092B (en) 1987-11-02
DK85079A (en) 1979-09-04
CH628293A5 (en) 1982-02-26
LU80985A1 (en) 1979-06-18
FR2418719A1 (en) 1979-09-28
IT1119673B (en) 1986-03-10
FI790714A (en) 1979-09-04
NO790720L (en) 1979-09-04
BE874496A (en) 1979-06-18
NL7901681A (en) 1979-09-05
ATA165379A (en) 1981-12-15
DE2908219A1 (en) 1979-09-06
CA1098017A (en) 1981-03-24

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