JPH08150812A - Pneumatic tire - Google Patents
Pneumatic tireInfo
- Publication number
- JPH08150812A JPH08150812A JP6296568A JP29656894A JPH08150812A JP H08150812 A JPH08150812 A JP H08150812A JP 6296568 A JP6296568 A JP 6296568A JP 29656894 A JP29656894 A JP 29656894A JP H08150812 A JPH08150812 A JP H08150812A
- Authority
- JP
- Japan
- Prior art keywords
- groove
- fence
- main
- tire
- main grooves
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/0318—Tread patterns irregular patterns with particular pitch sequence
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、耐ウエットスキッド性
を維持しつつ騒音を低減した空気入りタイヤに関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pneumatic tire having reduced noise while maintaining wet skid resistance.
【０００２】[0002]
【従来の技術】近年、自動車に起因する公害問題として
騒音が取り上げられ、タイヤが走行中に発する騒音は、
主としてタイヤのトレッドと路面間においてトレッドに
設けられた溝から排出される空気に伴う音である。タイ
ヤのトレッドは、通常左右に入りくんだ山と谷からなる
溝に区分されたリブ、ブロックなどの陸部と、これらに
適宜設けたサイプなどのトレッド構成要素を周方向にエ
ンドレスに配列して形成される。2. Description of the Related Art In recent years, noise has been taken up as a pollution problem caused by automobiles, and noise emitted while a tire is running is
It is mainly the sound that accompanies the air discharged from the groove provided in the tread between the tread of the tire and the road surface. The tread of a tire consists of land, such as ribs, blocks, etc., which are usually divided into grooves formed by ridges and valleys that go into the left and right, and tread components such as sipes, which are appropriately provided on these, arranged endlessly in the circumferential direction. It is formed.
【０００３】タイヤが走行するとタイヤの回転に伴い接
地面内においてリブ、またはラグ間の溝およびサイプ内
の空気が振動するため、トレッド構成要素が１秒間に何
回接地するかによってその音の高さ、つまり周波数が決
まり、ある高さの音となって人の耳に入ってくる。そこ
で通常、長さが異なる複数のトレッド構成要素、即ちピ
ッチを用いて周波数変調理論などに基づくピッチバリェ
−ション手法を適用し配列することにより、特定の周波
数を分散させて気にならない音にすることがなされてき
た。When the tire runs, the ribs or grooves between the lugs and the air in the sipes vibrate as the tire rotates, so that the pitch of the tread component depends on how many times it touches the ground. In other words, the frequency is decided, and it becomes a certain high-pitched sound that comes into the human ear. Therefore, usually, by applying and arranging a plurality of tread components having different lengths, that is, a pitch variation method based on the frequency modulation theory using pitches, it is possible to disperse a specific frequency into an unnoticeable sound. Has been done.
【０００４】ところが一方、高速道路網の目覚ましい整
備によって高速走行する機会が増え、この場合懸念され
るウエットスキッド性への配慮から、トレッドの陸部を
区分する溝は広幅の直線状周方向主溝を基調として用い
られている。このような周方向主溝は溝内に気柱管共鳴
が生じ、新たに騒音の悪化が問題となる。気柱管共鳴と
は、接地転動中に溝幅が踏み込み部／蹴り出し部で、外
力の作用によって急変動するのに伴い、溝壁（または陸
部壁）に高周波振動が発生し、それが接地面における周
方向主溝内、つまり管内の空気を振動させ、それに基づ
く音響的共鳴作用によって騒音が悪化するものである。On the other hand, due to remarkable maintenance of the expressway network, the chances of traveling at high speeds increase, and in consideration of the wet skid property which is a concern in this case, the groove that divides the land portion of the tread is a wide straight circumferential main groove. Is used as the keynote. In such a circumferential main groove, air column resonance occurs in the groove, which causes a new problem of deterioration of noise. Air columnar resonance is a stepping / kicking-out portion of the groove width during ground contact rolling, and high-frequency vibration occurs in the groove wall (or land wall) as it fluctuates rapidly due to the action of external force. Causes the air in the circumferential main groove on the ground contact surface, that is, the air in the pipe, to vibrate, and the acoustic resonance action based on this vibrates the noise.
【０００５】この気柱管共鳴による騒音の悪化を防止す
ることを目的として、特にトラック・バス用のような重
荷重用タイヤにおいては、トレッドゴムの一部が溝壁、
または溝底から空気の流れを遮る方向に延びる柔軟なグ
ル−ブフェンス、または遮蔽物を周方向に所定間隔をも
って設けることが行われている。In order to prevent the deterioration of noise due to the air columnar resonance, particularly in heavy-duty tires for trucks and buses, a part of the tread rubber is part of the groove wall,
Alternatively, flexible groove fences or shields extending from the bottom of the groove in the direction of blocking air flow are provided at predetermined intervals in the circumferential direction.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、走行時
に夫々の溝に設けたグル−ブフェンスが複数接地面内に
含まれたとき、それらのうちの１つが接地面から離脱す
るする際に、溝内に閉じ込められていた空気がはじけて
ポンピング音（周波数０．８〜１．２KHZ ）が発生し、
またグル−ブフェンスは柔軟であるとは云え、接地面内
の水の流通をある程度損なうことを避けることができな
い。本発明は上記問題点に鑑みなされたもので、耐ウエ
ット性を維持しつつ騒音を低減した空気入りタイヤを提
供することを目的とする。However, when a plurality of groove fences provided in the respective grooves during traveling are included in the ground contact surface, when one of them is separated from the ground contact surface, the groove fence pumping sound bursting of air confined (frequency 0.8~1.2KH Z) is generated,
Further, although the groove fence is flexible, it is unavoidable that the water flow in the ground contact surface is impaired to some extent. The present invention has been made in view of the above problems, and an object of the present invention is to provide a pneumatic tire having reduced noise while maintaining wet resistance.
【０００７】[0007]
【課題を解決するための手段】本発明は、周方向に延び
る複数の主溝とこれら主溝によって区分された陸部を含
み、上記主溝にこの溝の向きを遮る方向に延びるグル−
ブフェンス部を有するトレッドを備えたタイヤにおい
て、上記グル−ブフェンス部は各主溝毎タイヤが走行時
に形成される接地面に常時実質上１箇所含まれる周方向
間隔をもって設けると共に、主溝の横断面積が増大また
は減少した溝変形部をグル−ブフェンス部相互間に少な
くとも１箇所有することを特徴とする空気入りタイヤで
ある。SUMMARY OF THE INVENTION The present invention includes a plurality of circumferentially extending main grooves and a land portion divided by these main grooves, and the main groove is a groove extending in a direction blocking the direction of the grooves.
In a tire having a tread having a buff fence portion, the groove fence portion is provided with a circumferential interval that is always substantially included at one location on the ground contact surface formed by the tire for each main groove during running, and the cross-sectional area of the main groove is provided. The pneumatic tire is characterized in that it has at least one groove-deformed portion in which the groove deformation is increased or decreased between the groove-fence portions.
【０００８】上記グル−ブフェンス部および／または溝
変形部は各主溝の間で周方向に位相差をもって設けるこ
とが好ましく、更には、グル−ブフェンス部につき複数
のフェンスを周方向に相互近接配置して構成することが
好ましい。It is preferable that the groove fence portion and / or the groove deforming portion be provided with a phase difference in the circumferential direction between the respective main grooves, and further, a plurality of fences are arranged in the circumferential direction in close proximity to each other. It is preferable to configure the above.
【０００９】[0009]
【作用】本発明は周方向主溝に設けるグル−ブフェンス
部について、各溝毎タイヤが走行時に形成される接地面
内に常時実質上１箇所含まれる周方向間隔をもって設け
ると共に、主溝の横断面積が増大または減少した溝変形
部をグル−ブフェンス部相互間に少なくとも１箇所有す
ることを構成上の特徴とする。According to the present invention, the groove fence portion provided in the circumferential main groove is provided with a circumferential interval which is always substantially included at one location in the ground contact surface formed by the tire for each groove during running, and the groove crosses the main groove. A structural feature is that at least one groove-deformed portion having an increased or decreased area is provided between the groove-fence portions.
【００１０】本発明に成るタイヤは、主溝内の気柱管共
鳴による騒音がグル−ブフェンス部の配置と溝変形部に
よるマフラ−効果によって、空気振動の１次成分のみな
らず２次以上の成分を有利に低減することができる。そ
してグル−ブフェンス部が走行時接地面内において、各
主溝毎複数含まれないため溝内で圧縮された空気がはじ
け出されるときのポンピング音が生じることはない。In the tire according to the present invention, the noise due to the air column resonance in the main groove is caused not only by the primary component of air vibration but also by the secondary or higher order due to the arrangement of the groove fence and the muffler effect of the groove deformation. The components can be advantageously reduced. Further, since the groove fence portion is not included in each of the main grooves in the ground contact surface during traveling, no pumping noise is generated when the air compressed in the grooves is popped out.
【００１１】上記グル−ブフェンス部および／または溝
変形部は各主溝の間で周方向に位相差をもって設けた場
合、主溝相互間の騒音のピ−クが分散し、またグル−ブ
フェンス部につき複数のフェンスを周方向にお互い近接
配置して構成することによって、より高い溝内の空気振
動の伝播抑制効果を得ることができる。一方ウエット路
走行時においては、グル−ブフェンス部が接地面内に複
数含まれることがないため、主溝内の水の流通は実質上
阻害されない。When the groove fence portion and / or the groove deforming portion are provided with a phase difference in the circumferential direction between the main grooves, noise peaks are dispersed between the main grooves, and the groove fence portion is formed. By arranging a plurality of fences close to each other in the circumferential direction, it is possible to obtain a higher effect of suppressing the propagation of air vibrations in the groove. On the other hand, when traveling on a wet road, since the plurality of groove fence portions are not included in the ground contact surface, the flow of water in the main groove is not substantially hindered.
【００１２】[0012]
【実施例】以下図面に基づき説明する。図１は本発明に
おける一実施例を示すタイヤのトレッド平面展開図であ
る。本発明においてトレッド1 は周方向に延びる複数の
主溝2 とこれら主溝によって区分された陸部3 を含み、
主溝2 は夫々溝の向きを遮る方向に延びるグル−ブフェ
ンス部4 を備える。そしてグル−ブフェンス部4 は、各
溝毎タイヤが走行時に形成される接地面内に常時実質上
１箇所含まれる周方向間隔をもって設けると共に、主溝
の断面積が増大または減少した溝変形部5 をグル−ブフ
ェンス部4 相互間に少なくとも１箇所有するものであ
る。なお図示を省略しているが、本発明においてタイヤ
は円筒状クラウン部の両端から径方向内側に夫々サイド
ウォ−ルが連なり、上記クラウン部にトレッド1 を備え
る。そしてサイドウォ−ルの一方からクラウン部を通
り、他方サイドウォ−ルに亙って、例えばラジアルカ−
カスを、またこのカ−カスとトレッド間に非伸長性ベル
ト層を配置することによって強化した、公知の構造を適
用することができる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A description will be given below with reference to the drawings. FIG. 1 is a tread plan development view of a tire showing an embodiment of the present invention. In the present invention, the tread 1 includes a plurality of main grooves 2 extending in the circumferential direction and a land portion 3 divided by these main grooves,
Each main groove 2 is provided with a groove fence portion 4 extending in a direction that obstructs the direction of the groove. The groove fence portion 4 is provided with a circumferential spacing that is substantially always included in the ground contact surface formed by the tire for each groove while the tire is running, and the groove deformation portion 5 in which the cross-sectional area of the main groove is increased or decreased. Is provided at least at one place between the groove fence portions 4. Although not shown in the drawings, in the present invention, the tire is provided with side walls connected inward in the radial direction from both ends of the cylindrical crown portion, and the crown portion is provided with the tread 1. Then, from one of the side walls, passing through the crown portion, and across the other side wall, for example, a radial
Known constructions can be applied in which the dregs are also reinforced by placing a non-stretchable belt layer between the carcass and the tread.
【００１３】図１に示すトレッド1 は、245/70R19.5 サ
イズの重荷重用ラジアルタイヤの例で、赤道面O に近接
した位置に一対、赤道面O とトレッド端E のほぼ中央に
もう一対周方向主溝21、22を左右対称に設け、実質上等
幅のセンタ−および中間リブ31、32と広幅のショルダ−
リブ33を区分している。主溝2 は壁面が小さく出入りし
たジグザグタイプではあるが、両溝壁の間に周方向に連
通する空間を有する。なお符号L 、M およびN は、各種
方向に延びるサイプである。The tread 1 shown in FIG. 1 is an example of a heavy load radial tire of 245 / 70R19.5 size. A pair is located near the equatorial plane O, and another pair is formed at the center of the equatorial plane O and the tread end E. Directional main grooves 2 1 and 2 2 are provided symmetrically, and the center and intermediate ribs 3 1 and 3 2 having substantially the same width and the wide shoulder are provided.
It has divided the rib 3 3. The main groove 2 is a zigzag type in which the wall surface is small and goes in and out, but it has a space that communicates in the circumferential direction between both groove walls. The symbols L, M and N are sipes extending in various directions.
【００１４】グル−ブフェンス部4 はこの実施例では陸
部3 のゴムの一部が溝壁の両側から溝の中央に向かって
延びた単一フェンス4aより成り、図２にA-A 断面図とし
てフェンスの拡大図を示す。図２においてフェンス4aは
主溝2 の両壁から陸部をなすゴムの一部が中央に１mmの
スペ−スs （接地時には実質上閉じる）を残して延びた
両開き扉タイプである。フェンスの厚みt は２mm（図
１）、そして陸部3 の表面より２mmの段差d を設けてい
る。厚みt は主溝内における水の流通維持の面より０．
５〜４mmが好ましく、また段差d も同様の理由から溝深
さの５０% を越えない範囲で設けることが好ましい。な
おスペ−スs は主溝2 の中央より何れかの側に寄せて設
けたり、更には左右のフェンス4a間に周方向の距離を
（例えば５mm程度）設け、そして主溝中央寄りの先端を
軸方向に延長して多少幅広フェンスにすることによって
左右をオ−バ−ラップ配置とすることもできる。In this embodiment, the groove fence portion 4 is composed of a single fence 4a in which a part of the rubber of the land portion 3 extends from both sides of the groove wall toward the center of the groove. As shown in FIG. An enlarged view of the fence is shown. Fence 4 a in FIG. 2 rubber part of 1mm at the central space forming the land portions from both the wall of the main groove 2 - casement door type extending leaving scan s (substantially closed at the time of ground). The fence has a thickness t of 2 mm (Fig. 1) and a step d of 2 mm from the surface of the land 3. The thickness t is 0 from the viewpoint of maintaining water circulation in the main groove.
5 to 4 mm is preferable, and for the same reason, it is preferable that the step d is provided within a range not exceeding 50% of the groove depth. The space s is provided closer to either side of the center of the main groove 2, or a circumferential distance (for example, about 5 mm) is provided between the left and right fences 4a, and the tip near the center of the main groove is provided. It is also possible to provide an overlap arrangement on the left and right by extending the fence in the axial direction to make it a slightly wider fence.
【００１５】図３はフェンスの第２実施例を示すA-A 位
置における断面図である。この実施例の特徴は、フェン
ス4bの主溝2 の底7 との間に切欠きによる空所7を形成
した点にある。FIG. 3 is a sectional view showing the second embodiment of the fence at the AA position. The feature of this embodiment is that the formation of the cavity 7 by the notch between the bottom 7 of the fence 4 b of the main groove 2.
【００１６】図４はフェンスの第３実施例を示すA-A 位
置における断面図である。この実施例の特徴は主溝2 の
底の部分からフェンス4cが径方向外側に向かって延び、
主溝2 の両側壁との間に空間7 、7 を設けた点にある。FIG. 4 is a sectional view at the AA position showing the third embodiment of the fence. The feature of this embodiment is that the fence 4c extends radially outward from the bottom portion of the main groove 2,
It is at the point where spaces 7, 7 are provided between both side walls of the main groove 2.
【００１７】図５はフェンスの第４実施例を示すA-A 位
置における断面図である。この実施例の特徴はフエンス
4dが溝2 の一方の側壁から他方側壁に向かって延び、こ
の側壁と底6 の部分にかけて空所7 を設けた点にある。FIG. 5 is a cross-sectional view showing the fourth embodiment of the fence at the AA position. The characteristics of this embodiment are
4 d extends from one side wall of the groove 2 toward the other side wall, and a void 7 is provided between the side wall and the bottom 6 portion.
【００１８】図６は図１におけるにB-B 断面図である。
この例の場合溝変形部5 は、図１に幅v を主溝の幅w に
対し拡幅することによって横断面積を拡大したものであ
る。この実施例において溝変形部5aは溝幅のみによって
横断面積を増大しているが、断面積増大は溝深さを深く
することによって行うこともできる。溝変形部5 の断面
積は主溝2 の断面積の５０% を越えない範囲で、また長
さxは接地長さの５０% を越えない範囲で設けることが
夫々好ましい。FIG. 6 is a sectional view taken along line BB in FIG.
In the case of this example, the groove deforming portion 5 has an enlarged cross-sectional area by widening the width v 1 with respect to the width w of the main groove in FIG. Although the groove deformation part 5 a is increased cross-sectional area only by a groove width in this embodiment, the cross-sectional area increases may be carried out by deep groove depth. It is preferable that the cross-sectional area of the groove deforming portion 5 is provided within a range not exceeding 50% of the cross-sectional area of the main groove 2, and the length x is provided within a range not exceeding 50% of the ground contact length.
【００１９】図７は主溝変形部の第２実施例を示すB-B
位置における断面図である。この実施例の特徴は主溝の
底6 に***8 を設け、それによって主溝2 の断面積を減
じた点にある。FIG. 7 is a BB showing a second embodiment of the main groove deforming portion.
It is sectional drawing in a position. The feature of this embodiment is that a ridge 8 is provided on the bottom 6 of the main groove, thereby reducing the cross-sectional area of the main groove 2.
【００２０】図８は主溝変形部の第３実施例を示すB-B
位置における断面図である。この実施例の特徴は主溝の
底6 の中心位置P0を左右に振った変形溝を所定の長さを
もって周方向に隣接配置することによって、主溝の周方
向に連通する部分の投影断面積を減じた点にある。FIG. 8 is a BB showing a third embodiment of the main groove deforming portion.
It is sectional drawing in a position. The feature of this embodiment is that the deformed groove obtained by swaying the center position P 0 of the bottom 6 of the main groove to the left and right is arranged adjacently in the circumferential direction with a predetermined length, so that the projection disconnection of the portion communicating with the circumferential direction of the main groove is achieved. The point is that the area is reduced.
【００２１】[0021]
【効果】本発明に成るタイヤの効果を確かめるべく、図
１に示すトレッドを適用した245/70R19.5 サイズのラジ
アル構造タイヤを使用し、比較例を交えて室内における
騒音テストを行い評価をした。実施例のタイヤはグル−
ブフェンス部につき、図２に基づき述べた両開き扉状の
フェンスを１個宛設け、主溝変形部については図６に示
す構造を適用し、グル−ブフェンス部間に各々１箇所設
けた。そしてこの場合８８mm2 の主溝横断面積に対し、
主溝変形部の断面積は１２０mm2 （１３６% ）、長さx
（図１）は２０mmとした。一方比較例のタイヤは、グル
−ブフェンス部おとび主溝変形部を備えない点を除いて
実施例のタイヤと同一の構造とした。[Effect] In order to confirm the effect of the tire according to the present invention, a tire having a radial structure of 245 / 70R19.5 size to which the tread shown in FIG. . The tire of the example is a group
One double door-shaped fence described with reference to FIG. 2 was provided for the boom fence portion, and the structure shown in FIG. 6 was applied to the main groove deformed portion, and one fence was provided between the groove fence portions. And in this case, for the main groove cross-sectional area of 88 mm 2 ,
The cross-sectional area of the main groove deformed part is 120mm 2 (136%), length x
(Fig. 1) was 20 mm. On the other hand, the tire of the comparative example has the same structure as the tire of the example except that it does not include the groove fence portion and the main groove deforming portion.
【００２２】テストタイヤは19.5×6.75リムに組み、
７．５Kgf/Cm2 の内圧を充填して無響室内の表面が平滑
なドラム上にタイヤを２０６０Kgf の荷重で圧着し、５
０Km/Hの速度で走行させた。そしてマイクをドラム上７
５Cm、タイヤからの軸方向距離１００Cmの位置に固定し
た。The test tire was assembled on the 19.5 x 6.75 rim,
The inner pressure of 7.5 Kgf / Cm 2 was filled, and the tire was pressure-bonded with a load of 2060 Kgf on a drum with a smooth surface in the anechoic chamber.
It was run at a speed of 0 Km / H. And the microphone on the drum 7
It was fixed at a position of 5 Cm and an axial distance of 100 Cm from the tire.
【００２３】騒音測定の結果、１次共鳴音（８００HZ）
につき比較例のタイヤは７７dB、実施例のタイヤは７６
dBであり、２次共鳴音（１６００HZ）は比較例のタイヤ
は６９dB、そして実施例のタイヤは６８dBであった。こ
のように、トレッドに配置された複数の周方向主溝にグ
ル−ブフェンス部を各主溝毎タイヤが走行時において形
成される接地面内に常時１箇所含まれる周方向間隔をも
って設けると共に、主溝の横断面積が増大または減少し
た溝変形部をグル−ブフェンス部相互間に少なくとも１
箇所設けることによって、トレッドより生じる騒音を有
利に低減することができるのである。[0023] As a result of the noise measurement, the primary resonance (800H Z)
The tire of the comparative example is 77 dB, and the tire of the example is 76 dB.
a dB, 2-order resonance sound (1600H Z) tire of the comparative example 69 dB, and the tires of the examples was 68 dB. As described above, the groove fence portions are provided in the plurality of circumferential main grooves arranged on the tread at a circumferential interval that is always included in one of the contact surfaces formed by the tire for each main groove during traveling, and At least one groove deformation part having an increased or decreased groove cross-sectional area is provided between the groove fence parts.
By providing the parts, the noise generated from the tread can be advantageously reduced.
【図１】本発明における一実施例を示すタイヤのトレッ
ド平面展開図。FIG. 1 is a development plan view of a tire tread according to an embodiment of the present invention.
【図２】図１におけるA-A 断面図。FIG. 2 is a sectional view taken along line AA in FIG.
【図３】フェンスの第２実施例を示すA-A 位置における
断面図。FIG. 3 is a cross-sectional view at the AA position showing the second embodiment of the fence.
【図４】フェンスの第３実施例を示すA-A 位置における
断面図。FIG. 4 is a sectional view taken along the line AA of the fence according to the third embodiment.
【図５】フェンスの第４実施例を示すA-A 位置における
断面図。FIG. 5 is a cross-sectional view at the AA position showing the fourth embodiment of the fence.
【図６】図１におけるB-B 断面図。6 is a sectional view taken along line BB in FIG.
【図７】主溝変形部の第２実施例を示すB-B 位置におけ
る断面図。FIG. 7 is a cross-sectional view showing a second embodiment of the main groove deforming portion at the BB position.
【図８】主溝変形部の第３実施例を示すB-B 位置におけ
る断面図。FIG. 8 is a cross-sectional view at the BB position showing a third embodiment of the main groove deforming portion.
1 トレッド 2 周方向主溝 3 陸部 4 グル−ブフェンス部 5 溝変形部 1 Tread 2 Circumferential main groove 3 Land part 4 Groove fence part 5 Groove deformation part
Claims (4)
によって区分された陸部を含み、上記主溝にこの溝の向
きを遮る方向に延びるグル−ブフェンス部を有するトレ
ッドを備えたタイヤにおいて、上記グル−ブフェンス部
は各主溝毎タイヤが走行時に形成される接地面に常時実
質上１箇所含まれる周方向間隔をもって設けると共に、
主溝の横断面積が増大または減少した溝変形部をグル−
ブフェンス部相互間に少なくとも１箇所有することを特
徴とする空気入りタイヤ。1. A tire provided with a tread including a plurality of main grooves extending in the circumferential direction and a land portion divided by the main grooves, and the main groove having a groove fence portion extending in a direction blocking the direction of the grooves. In the above, the groove fence portion is provided with a circumferential interval that is always substantially included in one place on the ground contact surface formed when the tire for each main groove is running,
Glue the groove deformation part where the cross-sectional area of the main groove increases or decreases.
A pneumatic tire having at least one place between the buffing portions.
周方向に位相差をもって設けたことを特徴とする請求項
１記載の空気入りタイヤ。2. The pneumatic tire according to claim 1, wherein the groove fence portion is provided with a phase difference in the circumferential direction between the main grooves.
相差をもって設けたことを特徴とする請求項１乃至２記
載の空気入りタイヤ。3. The pneumatic tire according to claim 1, wherein the groove deformation portion is provided with a phase difference in the circumferential direction between the main grooves.
に近接して設けた複数のフェンスより成ることを特徴と
する請求項１乃至２記載の空気入りタイヤ。4. The pneumatic tire according to claim 1, wherein the groove fence portion is composed of a plurality of fences provided close to each other in the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6296568A JPH08150812A (en) | 1994-11-30 | 1994-11-30 | Pneumatic tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6296568A JPH08150812A (en) | 1994-11-30 | 1994-11-30 | Pneumatic tire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08150812A true JPH08150812A (en) | 1996-06-11 |
Family
ID=17835232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6296568A Pending JPH08150812A (en) | 1994-11-30 | 1994-11-30 | Pneumatic tire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08150812A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10211805A (en) * | 1997-01-28 | 1998-08-11 | Pirelli Coordinamento Pneumatici Spa | Tire and tread band thereof |
| EP0908330A1 (en) * | 1997-10-06 | 1999-04-14 | Bridgestone Corporation | Heavy duty pneumatic tires |
| EP1216853A2 (en) * | 2000-12-19 | 2002-06-26 | Sumitomo Rubber Industries Ltd. | Pneumatic tire |
| JP2005297698A (en) * | 2004-04-09 | 2005-10-27 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
| JP2006341655A (en) * | 2005-06-07 | 2006-12-21 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
| WO2007148564A1 (en) * | 2006-06-23 | 2007-12-27 | The Yokohama Rubber Co., Ltd. | Pneumatic tire |
| EP1946943A1 (en) * | 2007-01-22 | 2008-07-23 | Bridgestone Corporation | Pneumatic tire |
| US7878228B2 (en) * | 2005-12-29 | 2011-02-01 | Sumitomo Rubber Industries, Ltd. | Heavy-duty tire with tread having closed sipes and edge sipes in ribs |
| US20110126952A1 (en) * | 2008-07-22 | 2011-06-02 | Bridgestone Corporation | Tire and method of producing the same |
| WO2012072444A1 (en) * | 2010-12-02 | 2012-06-07 | Societe De Technologie Michelin | Noise-reducing device intended to be inserted into a groove in the tread of a tyre and tyre comprising a device of this type |
| WO2013072169A1 (en) | 2011-11-18 | 2013-05-23 | Compagnie Generale Des Etablissements Michelin | Resonant-noise suppressor device for tyre |
| FR2983431A1 (en) * | 2011-12-05 | 2013-06-07 | Michelin Soc Tech | IMPROVED NOISE REDUCING DEVICE FOR TIRE |
| FR2995823A1 (en) * | 2012-09-26 | 2014-03-28 | Michelin & Cie | IMPROVED ANTI-NOISE RESONANCE NOISE DEVICE FOR TIRES |
| JPWO2013145204A1 (en) * | 2012-03-29 | 2015-08-03 | コンパニー ゼネラール デ エタブリッスマン ミシュラン | Pneumatic tire tread |
| US9186935B2 (en) * | 2011-09-13 | 2015-11-17 | The Goodyear Tire & Rubber Company | Commercial truck steer tire tread |
| US20190232722A1 (en) * | 2018-01-31 | 2019-08-01 | The Goodyear Tire & Rubber Company | Tread for a tire |
-
1994
- 1994-11-30 JP JP6296568A patent/JPH08150812A/en active Pending
Cited By (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10211805A (en) * | 1997-01-28 | 1998-08-11 | Pirelli Coordinamento Pneumatici Spa | Tire and tread band thereof |
| EP0908330A1 (en) * | 1997-10-06 | 1999-04-14 | Bridgestone Corporation | Heavy duty pneumatic tires |
| US6119744A (en) * | 1997-10-06 | 2000-09-19 | Bridgestone Corporation | Heavy duty pneumatic tires including protrusions |
| EP1216853A2 (en) * | 2000-12-19 | 2002-06-26 | Sumitomo Rubber Industries Ltd. | Pneumatic tire |
| EP1216853A3 (en) * | 2000-12-19 | 2003-07-30 | Sumitomo Rubber Industries Ltd. | Pneumatic tire |
| US6918420B2 (en) | 2000-12-19 | 2005-07-19 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire including groove bottom rib |
| JP2005297698A (en) * | 2004-04-09 | 2005-10-27 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
| JP2006341655A (en) * | 2005-06-07 | 2006-12-21 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
| JP4639974B2 (en) * | 2005-06-07 | 2011-02-23 | 横浜ゴム株式会社 | Pneumatic tire |
| US7878228B2 (en) * | 2005-12-29 | 2011-02-01 | Sumitomo Rubber Industries, Ltd. | Heavy-duty tire with tread having closed sipes and edge sipes in ribs |
| US8991451B2 (en) | 2006-06-23 | 2015-03-31 | The Yokohama Rubber Co., Ltd. | Pneumatic tire with tread having ribs, open sipes and multisipes |
| WO2007148564A1 (en) * | 2006-06-23 | 2007-12-27 | The Yokohama Rubber Co., Ltd. | Pneumatic tire |
| EP1946943A1 (en) * | 2007-01-22 | 2008-07-23 | Bridgestone Corporation | Pneumatic tire |
| US8931533B2 (en) * | 2008-07-22 | 2015-01-13 | Bridgestone Corporation | Tire and method of producing the same |
| US20110126952A1 (en) * | 2008-07-22 | 2011-06-02 | Bridgestone Corporation | Tire and method of producing the same |
| WO2012072444A1 (en) * | 2010-12-02 | 2012-06-07 | Societe De Technologie Michelin | Noise-reducing device intended to be inserted into a groove in the tread of a tyre and tyre comprising a device of this type |
| FR2968242A1 (en) * | 2010-12-02 | 2012-06-08 | Michelin Soc Tech | ANTI-NOISE DEVICE FOR BEING REPORTED IN A BEARING OF THE BEARING BAND OF A PNEUMATIC AND TIRE COMPRISING A DEVICE OF THIS TYPE. |
| US9688106B2 (en) | 2010-12-02 | 2017-06-27 | Compagnie Generale Des Etablissements Michelin | Noise-reducing device intended to be inserted into a groove in the tread of a tire and tire comprising a device of this type |
| CN103249575A (en) * | 2010-12-02 | 2013-08-14 | 米其林企业总公司 | Noise-reducing device intended to be inserted into a groove in the tread of a tyre and tyre comprising a device of this type |
| US9186935B2 (en) * | 2011-09-13 | 2015-11-17 | The Goodyear Tire & Rubber Company | Commercial truck steer tire tread |
| US9539864B2 (en) | 2011-11-18 | 2017-01-10 | Compagnie Generale Des Etablissements Michelin | Resonant-noise suppressor device for tire |
| JP2015501747A (en) * | 2011-11-18 | 2015-01-19 | コンパニー ゼネラール デ エタブリッスマン ミシュラン | Resonant noise suppression device for tires |
| WO2013072169A1 (en) | 2011-11-18 | 2013-05-23 | Compagnie Generale Des Etablissements Michelin | Resonant-noise suppressor device for tyre |
| WO2013083428A1 (en) * | 2011-12-05 | 2013-06-13 | Compagnie Generale Des Etablissements Michelin | Improved noise-reducing device for a tire |
| JP2015500165A (en) * | 2011-12-05 | 2015-01-05 | コンパニー ゼネラール デ エタブリッスマン ミシュラン | Noise reduction equipment for tires |
| FR2983431A1 (en) * | 2011-12-05 | 2013-06-07 | Michelin Soc Tech | IMPROVED NOISE REDUCING DEVICE FOR TIRE |
| US9770952B2 (en) | 2011-12-05 | 2017-09-26 | Compagnie Generale Des Etablissements Michelin | Noise-reducing device for a tire |
| JPWO2013145204A1 (en) * | 2012-03-29 | 2015-08-03 | コンパニー ゼネラール デ エタブリッスマン ミシュラン | Pneumatic tire tread |
| FR2995823A1 (en) * | 2012-09-26 | 2014-03-28 | Michelin & Cie | IMPROVED ANTI-NOISE RESONANCE NOISE DEVICE FOR TIRES |
| CN104684742A (en) * | 2012-09-26 | 2015-06-03 | 米其林企业总公司 | Improved anti-resonance noise device for tire |
| CN104684742B (en) * | 2012-09-26 | 2016-12-21 | 米其林企业总公司 | The anti-resonance vibration rattle devices of the improvement of tire |
| WO2014048952A1 (en) | 2012-09-26 | 2014-04-03 | Compagnie Generale Des Etablissements Michelin | Improved anti-resonance noise device for tire |
| US20190232722A1 (en) * | 2018-01-31 | 2019-08-01 | The Goodyear Tire & Rubber Company | Tread for a tire |
| CN110091678A (en) * | 2018-01-31 | 2019-08-06 | 固特异轮胎和橡胶公司 | Tyre surface for tire |
| US11001103B2 (en) * | 2018-01-31 | 2021-05-11 | The Goodyear Tire & Rubber Company | Tread for a tire |
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