JPH0692104A - Different diameter bead tire and mounting method thereof - Google Patents
Different diameter bead tire and mounting method thereofInfo
- Publication number
- JPH0692104A JPH0692104A JP4245235A JP24523592A JPH0692104A JP H0692104 A JPH0692104 A JP H0692104A JP 4245235 A JP4245235 A JP 4245235A JP 24523592 A JP24523592 A JP 24523592A JP H0692104 A JPH0692104 A JP H0692104A
- Authority
- JP
- Japan
- Prior art keywords
- bead
- tire
- vehicle
- different
- diameter
- 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
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
- B60C3/00—Tyres characterised by the transverse section
- B60C3/06—Tyres characterised by the transverse section asymmetric
-
- 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/02—Seating or securing beads on rims
- B60C15/0236—Asymmetric bead seats, e.g. different bead diameter or inclination angle
-
- 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
- B60C19/00—Tyre parts or constructions not otherwise provided for
- B60C19/001—Tyres requiring an asymmetric or a special mounting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は空気入りラジアルタイヤ
に係り、特に左右のビード部の内径をそれぞれ異ならし
めた異径ビードタイヤ及び異径ビードタイヤの装着方法
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pneumatic radial tire, and more particularly to a different diameter bead tire in which the inner diameters of the left and right bead portions are made different and a method of mounting the different diameter bead tire.
【０００２】[0002]
【従来の技術】従来、一般の空気入りタイヤの断面形状
は左右対称である。しかしながら、最近のモータリゼー
ション、とりわけ自動車の高速化、高性能化に伴い、タ
イヤへの高性能化の要求は高まるばかりである。こうし
た要求性能の中でタイヤの直進安定性、耐摩耗性も重要
な性能の一つである。2. Description of the Related Art Conventionally, the cross-sectional shape of a general pneumatic tire is symmetrical. However, with recent motorization, in particular, speeding up and higher performance of automobiles, the demand for higher performance of tires is increasing. Among these required performances, straight running stability and wear resistance of the tire are also important performances.
【０００３】そこで、タイヤの振動乗心地性と操縦安定
性とを高度に両立させるタイヤとして、以前からビード
内径が左右で異なる、所謂異径ビードタイヤが種々提案
されている。例えば、実開昭６２−１５５００２、１５
５００５、１５５００６、１５５００８、実開平１−１
５０１０３号等のように、異径ビードと左右非対称構造
とを組み合わせた考案等がある。Therefore, various types of so-called bead tires having different bead inner diameters on the left and right sides have been proposed as tires having a high level of both vibration riding comfort and steering stability. For example, the actual exploitation Sho 62-155002, 15
5005, 155006, 155008, Actual Kaihei 1-1
There is a device combining a bead with a different diameter and a left-right asymmetrical structure such as No. 50103.
【０００４】[0004]
【発明が解決しようとする課題】このような、異径ビー
ドタイヤは、大径側を車両内側に向けて装着することに
より、ブレーキスペースを拡大でき、振動乗り心地性と
操縦性の両立が可能である等の利点があるが、未だ実用
化には至っていない。By mounting such a different diameter bead tire with the large diameter side facing the inside of the vehicle, the brake space can be expanded and both vibration riding comfort and maneuverability can be achieved. However, it has not been put to practical use yet.
【０００５】すなわち、これらの異径ビードタイヤにお
いては、その形の左右非対称のため、コニシティが大き
く、それゆえ直進性や耐摩耗性が劣るという欠点を有す
る。That is, these different-diameter bead tires have a drawback that they have a large conicity because of their asymmetrical shape, and therefore are inferior in straight running property and wear resistance.
【０００６】従来の異径ビードタイヤに関する発明にお
いて、接地圧や疲労性の左右非対称性を改善すべく構造
を左右対称とするものや、接地圧非対称でも摩耗均一と
なるように、左右で摩耗性のことなるトレッドゴムを使
用するものはあるが、コニシティについての考慮は全く
なされていなかった。In the invention relating to the conventional bead tires with different diameters, the structure is made symmetrical so as to improve the left-right asymmetry of the contact pressure and the fatigue property, and the wear resistance is left and right so that the wear is uniform even if the contact pressure is asymmetric. There are some that use different tread rubbers, but no consideration was given to conicity.
【０００７】本発明は上記事実を考慮し、異径ビードタ
イヤのユニフォミティ、特にラテラルフォースディビエ
イジョン（ＬＦＤ）を改善することにより、現行の左右
対称なタイヤよりも直進性、耐摩耗性の優れた異径ビー
ドタイヤ及びその装着方法を提供することが目的であ
る。In consideration of the above facts, the present invention improves the straightness and wear resistance of the existing bilaterally symmetric tires by improving the uniformity of bead tires having different diameters, especially the lateral force division (LFD). It is an object to provide a different diameter bead tire and a method of mounting the same.
【０００８】[0008]
【課題を解決するための手段】本発明者は、左右が異な
る異径ビードタイヤであっても、コニシティによる悪影
響をなくせば、直進安定性や耐摩耗性を阻害することな
く異径ビードタイヤ本来の持つ利点を発揮できると考
え、鋭意検討した結果、プライステア（ラジアルタイヤ
の最外層のベルトの傾斜方向によってタイヤ軸方向に定
常的に働く力であり、タイヤの回転方向によってその向
きは変わる）とこのコニシティ（タイヤの形状によって
タイヤ軸方向に定常的に働く力であり、異径ビードタイ
ヤの場合には小径側から大径側へ向かう力であって、タ
イヤの回転方向によって向きが変わらない）とを互いに
相殺することが可能であることを発見した。Means for Solving the Problems Even if different diameter bead tires having different left and right sides are provided, the different diameter bead tires are originally provided without impairing straight running stability and wear resistance if the adverse effect of conicity is eliminated. As a result of diligent study, it is possible to exert the advantages of the, and, as a result, the price tear (a force that constantly acts in the tire axial direction depending on the inclination direction of the outermost belt of the radial tire, and its direction changes depending on the tire rotation direction) And this conicity (force that constantly acts in the axial direction of the tire depending on the shape of the tire, in the case of bead tires with different diameters, this is the force from the small diameter side to the large diameter side, which does not change depending on the tire rotation direction. ) And can be offset from each other.
【０００９】請求項１に記載の発明は、少なくとも一対
のビードからなるビード部と、前記ビード部間に跨がっ
てほぼ円筒状に延びる少なくとも１枚のカーカスプライ
からなるカーカスと、タイヤ赤道面に対して傾斜すると
共に互いに平行配列された補強繊維を埋設したベルト層
を前記カーカスの径方向外側に備え、さらに前記ビード
部の内径が互いに異なる異径ビードタイヤにおいて、径
方向最外に位置するベルト層に埋設された補強繊維が、
車両装着状態でかつ車両前進時のタイヤ回転方向を基準
にして内径の大きいビード部側へ９０°未満の角度をも
って傾斜していることを特徴としている。According to a first aspect of the present invention, there is provided a bead portion including at least a pair of beads, a carcass including at least one carcass ply extending in a substantially cylindrical shape across the bead portions, and a tire equatorial plane. A belt layer in which reinforcing fibers embedded in parallel with each other and inclined with respect to each other are provided on the outer side in the radial direction of the carcass, and further, in bead tires with different diameters in which the inner diameters of the bead portions are different from each other, they are located at the outermost side in the radial direction Reinforcing fibers embedded in the belt layer,
It is characterized in that it is inclined to the bead portion side having a large inner diameter at an angle of less than 90 ° with reference to the tire rotating direction when the vehicle is mounted and when the vehicle is moving forward.
【００１０】また、請求項２に記載の発明は、少なくと
も一対のビードからなるビード部と、前記ビード部間に
跨がってほぼ円筒状に延びる少なくとも１枚のカーカス
プライからなるカーカスと、タイヤ赤道面に対して傾斜
すると共に互いに平行配列された補強繊維を埋設したベ
ルト層を前記カーカスの径方向外側に備え、さらに前記
ビード部の内径が互いに異なる異径ビードタイヤの装着
方法において、径方向最外に位置するベルト層に埋設さ
れた補強繊維が、車両装着状態でかつ車両前進時のタイ
ヤ回転方向を基準にして内径の大きいビード部側へ９０
°未満の角度をもって傾斜していることを特徴としてい
る。The invention according to claim 2 is a tire having at least one pair of beads, a carcass comprising at least one carcass ply extending in a substantially cylindrical shape across the bead portions, and a tire. A belt layer having reinforcing fibers embedded in parallel with each other and inclined with respect to the equatorial plane is provided on the outer side in the radial direction of the carcass, and further, the inner diameters of the bead portions are different from each other in a mounting method of a bead tire in the radial direction. The reinforcing fibers embedded in the outermost belt layer are moved toward the bead portion having a large inner diameter in the state where the vehicle is mounted and with the tire rotating direction when the vehicle is moving forward as a reference.
It is characterized by being inclined at an angle of less than °.
【００１１】[0011]
【作用】請求項１に記載の発明による異径ビードタイヤ
によれば、左右のビード径が異なるため、異径ビードタ
イヤが路面上を回転すると異径ビードタイヤには、ビー
ドの小径側から大径側へ向かうコニシティが発生する。
また、径方向最外に位置するベルト層に埋設された補強
繊維の方向は、車両装着状態でかつ車両前進時のタイヤ
回転方向を基準にして、ここから内径の大きいビード部
側へと９０°未満の角度をもって傾斜しているため、車
両前進時の異径ビードタイヤにはビードの大径側から小
径側へ向かうプライステアが発生する。このため、本発
明の異径ビードタイヤにおいては、車両を前進させて異
径ビードタイヤを路面上で回転させると、コニシティと
プライステアとが互いに打ち消し合う方向に発生して相
殺されてラテラルフォースディビエイジョンが小さくな
るため、タイヤの直進安定性及び耐摩耗性が向上する。According to the different diameter bead tire according to the first aspect of the present invention, since the bead diameters on the left and right are different, when the different diameter bead tire rotates on the road surface, the different diameter bead tire has a large diameter from the small diameter side of the bead. Conicity toward the radial side occurs.
Further, the direction of the reinforcing fibers embedded in the outermost belt layer in the radial direction is 90 ° from here to the bead portion side having a large inner diameter with reference to the tire rotation direction when the vehicle is mounted and when the vehicle is moving forward. Since the bead tire is inclined at an angle of less than, a price tear occurs from the large diameter side to the small diameter side of the bead in the different diameter bead tire when the vehicle moves forward. Therefore, in the different-diameter bead tire of the present invention, when the vehicle is advanced to rotate the different-diameter bead tire on the road surface, the conicity and the plysteer are generated in the directions canceling each other to cancel each other out and the lateral force divide is canceled. Since the age is reduced, the straight running stability and wear resistance of the tire are improved.
【００１２】なお、本発明の作用は、左右ビード径の径
差や、ベルト角度などによらず一応あるが、最大の効果
を得るためには、プライステアと同程度のコニシティを
得ることが好ましい。したがって、一般の乗用車ラジア
ルタイヤの１５°〜３０°程度の周方向に対してのベル
ト角度の場合、プライステアは２０ｋｇ〜４０ｋｇ程度
となるから、これと同程度のコニシティを得るために
は、左右ビードの径差は２〜３インチとすることが好ま
しい。The operation of the present invention is present regardless of the diameter difference between the left and right bead diameters, the belt angle, etc. However, in order to obtain the maximum effect, it is preferable to obtain conicity similar to that of plysteer. . Therefore, in the case of a belt angle with respect to the circumferential direction of a radial tire of a general passenger car of about 15 ° to 30 °, the plysteer is about 20 kg to 40 kg. The bead diameter difference is preferably 2 to 3 inches.
【００１３】請求項２に記載の発明による異径ビードタ
イヤの装着方法によれば、異径ビードタイヤは、径方向
最外に位置するベルト層に埋設された補強繊維方向が、
車両装着状態でかつ車両前進時のタイヤ回転方向を基準
にして、ここから内径の大きいビード部側へと９０°未
満の角度をもって傾斜するように車両に装着するので、
車両が前進走行して異径ビードタイヤが路面上を回転す
ると、異径ビードタイヤには、ビードの小径側から大径
側へ向かうコニシティが発生する。また、径方向最外に
位置するベルト層に埋設された補強繊維の方向は、車両
装着状態でかつ車両前進時のタイヤ回転方向を基準にし
て、ここから内径の大きいビード部側へと９０°未満の
角度をもって傾斜しているため、異径ビードタイヤには
ビードの大径側から小径側へ向かうプライステアが発生
する。このため、車両を前進させて異径ビードタイヤを
路面上で回転させると、コニシティとプライステアとが
互いに打ち消し合う方向に発生して相殺されて異径ビー
ドタイヤに発生するラテラルフォースディビエイジョン
が小さくなり、タイヤの直進安定性が向上して車両の直
進時の走行性が向上すると共にタイヤの耐摩耗性が向上
する。According to the method of mounting the different diameter bead tire according to the second aspect of the invention, in the different diameter bead tire, the direction of the reinforcing fiber embedded in the belt layer located at the outermost radial direction is
Since the tire is attached to the vehicle in a state of being attached to the bead portion having a large inner diameter with an angle of less than 90 ° with respect to the tire rotation direction when the vehicle is mounted and when the vehicle is moving forward,
When the vehicle travels forward and the different-diameter bead tire rotates on the road surface, the different-diameter bead tire generates conicity from the small diameter side to the large diameter side of the bead. Further, the direction of the reinforcing fibers embedded in the outermost belt layer in the radial direction is 90 ° from here to the bead portion side having a large inner diameter with reference to the tire rotation direction when the vehicle is mounted and when the vehicle is moving forward. Since the bead tires are inclined at an angle of less than, a price tear occurs from the large diameter side of the bead to the small diameter side of the bead tire. For this reason, when the vehicle is moved forward and the different diameter bead tire is rotated on the road surface, the lateral force division occurring in the different diameter bead tire is offset by the conicity and the plysteer canceling each other out. The size of the tire is reduced, the straight running stability of the tire is improved, the running property of the vehicle when straight running is improved, and the wear resistance of the tire is improved.
【００１４】[0014]
〔第１実施例〕本発明の第１実施例を図１乃至図３に従
って説明する。[First Embodiment] A first embodiment of the present invention will be described with reference to FIGS.
【００１５】図１に示すように、本実施例の異径ビード
タイヤ１０は、大径ビード１２及び小径ビード１４と、
トロイダル状をしたカーカス層１６とを有し、カーカス
層１６は、内部にラジアル方向（子午線方向）に延びる
多数本のコードが埋設された少なくとも１枚のカーカス
プライ１８から構成されている。As shown in FIG. 1, the different diameter bead tire 10 of this embodiment includes a large diameter bead 12 and a small diameter bead 14.
The carcass layer 16 has a toroidal shape. The carcass layer 16 includes at least one carcass ply 18 in which a large number of cords extending in the radial direction (meridian direction) are embedded.
【００１６】カーカス層１６のタイヤ半径方向外側に
は、少なくとも２枚のベルトプライ２０からなるベルト
層２２が配置され、これらのベルトプライ２０内には、
周方向に対して傾斜した多数本の補強コード２６が埋設
され、これらの補強コード２６は隣接するベルトプライ
において互いに交差している。また、ベルト層２２のタ
イヤ半径方向外側には、主溝、横溝（図示せず）等が形
成されたトレッド２４が配置されている。A belt layer 22 composed of at least two belt plies 20 is arranged on the outer side of the carcass layer 16 in the tire radial direction.
A large number of reinforcing cords 26 inclined with respect to the circumferential direction are embedded, and these reinforcing cords 26 intersect with each other in adjacent belt plies. A tread 24 having a main groove, a lateral groove (not shown), and the like is arranged on the outer side of the belt layer 22 in the tire radial direction.
【００１７】なお、本実施例の異径ビードタイヤ１０
は、大径側が１６インチ、小径側が１３インチで、タイ
ヤ幅は２００mm、偏平率は大径側が５５％、小径側が７
０％であり、２種類のタイヤ２２５／５０Ｒ１６と１７
５／Ｒ１３とを、トレッド部２４のタイヤ最大幅中心Ｃ
Ｌでつなぎ合わせた形状である。The different diameter bead tire 10 of this embodiment is used.
Is 16 inches on the large diameter side and 13 inches on the small diameter side, the tire width is 200 mm, and the flatness ratio is 55% on the large diameter side and 7 on the small diameter side.
0%, two types of tires 225 / 50R16 and 17
5 / R13 and the tire maximum width center C of the tread portion 24
It is a shape connected by L.
【００１８】本実施例の異径ビードタイヤ１０は、径方
向最外に位置するベルトプライ２０の補強コード２６の
コード方向が、車両装着状態でかつ車両前進時のタイヤ
回転方向を基準にして、ここから大径ビード１２側へと
９０°未満の角度をもって傾斜している。すなわち、本
実施例の異径ビードタイヤ１０には、車両の左右の一方
側に装着する異径ビードタイヤ１０Ａと他方側に装着す
る異径ビードタイヤ１０Ｂとの２種類がある。In the different diameter bead tire 10 of the present embodiment, the cord direction of the reinforcing cord 26 of the belt ply 20 located at the outermost radial direction is based on the tire rotating direction when the vehicle is mounted and the vehicle is moving forward. It inclines to the large-diameter bead 12 side from here with an angle of less than 90 °. That is, there are two types of different diameter bead tires 10 of this embodiment, the different diameter bead tires 10A mounted on one side of the vehicle and the different diameter bead tires 10B mounted on the other side.
【００１９】図３に示すように、異径ビードタイヤ１０
Ａは、径方向最外に位置するベルトプライ２０の補強コ
ード２６のコード方向が、図３に示すように右上がりに
傾斜しており、異径ビードタイヤ１０Ｂは、径方向最外
に位置するベルトプライ２０の補強コード２６のコード
方向が、図３に示すように異径ビードタイヤ１０Ａとは
反対方向、即ち左上がりに傾斜している。As shown in FIG. 3, the different diameter bead tire 10 is used.
In A, the cord direction of the reinforcing cord 26 of the belt ply 20 located at the outermost radial direction is inclined to the right as shown in FIG. 3, and the different diameter bead tire 10B is located at the outermost radial direction. As shown in FIG. 3, the cord direction of the reinforcement cord 26 of the belt ply 20 is inclined in the direction opposite to the different diameter bead tire 10A, that is, to the left.
【００２０】図３に示すように、本実施例の異径ビード
タイヤ１０Ａ及び異径ビードタイヤ１０Ｂを車両３０に
装着する場合（図３は、車両３０を上側から見ており、
紙面上側が車両前方側となる）、例えば、小径ビード１
４側を車両３０内側に向けて装着する場合には、異径ビ
ードタイヤ１０Ａは車両３０の右側（矢印Ｒ方向側）に
装着し、異径ビードタイヤ１０Ｂは車両３０の左側（矢
印Ｌ方向側）に装着する。As shown in FIG. 3, when the different-diameter bead tire 10A and the different-diameter bead tire 10B of this embodiment are mounted on a vehicle 30 (in FIG. 3, the vehicle 30 is viewed from above,
The upper side of the paper is the front side of the vehicle), for example, the small diameter bead 1
When the four side is mounted toward the inside of the vehicle 30, the different diameter bead tire 10A is mounted on the right side of the vehicle 30 (arrow R direction side), and the different diameter bead tire 10B is on the left side of the vehicle 30 (arrow L direction side). ).
【００２１】次に本実施例の作用を説明する。図２及び
図３に示すように、例えば、車両が矢印Ａ方向に前進走
行し、異径ビードタイヤ１０Ａが小径ビード１４側を進
行方向左側にして矢印Ｂ方向に回転すると、異径ビード
タイヤ１０Ａには、進行方向右方側（図２及び図３の矢
印Ｒ方向側）へ向けて作用するコニシティＣと進行方向
左方側（図２及び図３の矢印Ｌ方向側）へ向けて作用す
るプライステアＰとが発生し、また、車両が矢印Ａ方向
とは反対方向を進行して、即ち、車両が後退して異径ビ
ードタイヤ１０Ａが矢印Ｂ方向とは反対方向に回転する
と、異径ビードタイヤ１０Ａには、進行方向左方側（図
２及び図３の矢印Ｒ方向側）へ向けて作用するコニシテ
ィＣと進行方向左方側（図２及び図３の矢印Ｒ方向側）
へ向けて作用するプライステアＰとが作用する。Next, the operation of this embodiment will be described. As shown in FIG. 2 and FIG. 3, for example, when the vehicle travels forward in the direction of arrow A and the different diameter bead tire 10A rotates in the direction of arrow B with the small diameter bead 14 side left in the traveling direction, the different diameter bead tire 10A. , The conicity C acting toward the right side in the traveling direction (the arrow R direction side in FIGS. 2 and 3) and the conicity acting toward the left side in the traveling direction (arrow L direction side in FIGS. 2 and 3). When the price tear P occurs and the vehicle advances in the direction opposite to the arrow A direction, that is, when the vehicle retreats and the different diameter bead tire 10A rotates in the direction opposite to the arrow B direction, the different diameter On the bead tire 10A, the conicity C acting toward the left side in the traveling direction (the arrow R direction side in FIGS. 2 and 3) and the left side in the traveling direction (the arrow R direction side in FIGS. 2 and 3)
Plystear P, which acts toward, acts.
【００２２】一方、車両が矢印Ａ方向に前進走行し、異
径ビードタイヤ１０Ｂが小径ビード１４側を進行方向右
側にして回転すると、異径ビードタイヤ１０Ｂには、進
行方向左方側へ向けて作用するコニシティＣと進行方向
右方側へ向けて作用するプライステアＰとが発生し、ま
た、車両が後退して異径ビードタイヤ１０Ｂが反対方向
へ回転すると、異径ビードタイヤ１０Ｂには、進行方向
右方側へ向けて作用するコニシティＣと進行方向右方側
へ向けて作用するプライステアＰとが作用する。On the other hand, when the vehicle travels forward in the direction of arrow A and the different diameter bead tire 10B rotates with the small diameter bead 14 side to the right in the traveling direction, the different diameter bead tire 10B moves toward the left side in the traveling direction. When the conicity C that acts and the price tear P that acts toward the right side in the traveling direction are generated, and when the vehicle retreats and the different diameter bead tire 10B rotates in the opposite direction, the different diameter bead tire 10B becomes The conicity C acting toward the right side in the traveling direction and the plysteer P acting toward the right side in the traveling direction act.
【００２３】したがって、図３に示すように異径ビード
タイヤ１０Ａ及び異径ビードタイヤ１０Ｂを車両３０に
装着し、車両３０を矢印Ａ方向に前進走行させて異径ビ
ードタイヤ１０Ａ、１０Ｂが路面上を回転すると、コニ
シティＣとプライステアＰとが互いに打ち消し合い、ラ
テラルフォースディビエイジョンが小さくなる。この結
果、異径ビードタイヤ１０Ａ、１０Ｂの直進安定性及び
耐摩耗性が向上する。Therefore, as shown in FIG. 3, the different diameter bead tires 10A and 10B are mounted on the vehicle 30, and the vehicle 30 is moved forward in the direction of arrow A so that the different diameter bead tires 10A and 10B are on the road surface. When is rotated, the conicity C and the price tear P cancel each other out, and the lateral force division becomes small. As a result, the straight running stability and wear resistance of the different diameter bead tires 10A and 10B are improved.
【００２４】このように、異径ビードタイヤ１０Ａ、１
０Ｂの直進安定性が向上することによって車両３０の直
進安定性を向上させることができ、異径ビードタイヤ１
０Ａ、１０Ｂの耐摩耗性が向上することにより、タイヤ
寿命を延ばすことができる。In this way, the different diameter bead tires 10A, 1
By improving the straight running stability of 0B, the straight running stability of the vehicle 30 can be improved.
By improving the wear resistance of 0A and 10B, the life of the tire can be extended.
【００２５】〔第２実施例〕次に、本発明の第２実施例
を図４にしたがって説明する。なお、第１実施例と同一
構成に関しては同一符号を付し、その説明は省略する。[Second Embodiment] Next, a second embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.
【００２６】本実施例は、第１実施例とは逆に、異径ビ
ードタイヤ１０Ａを車両の左側に、異径ビードタイヤ１
０Ｂを車両の右側に、即ち大径ビード１２側を車両の内
側に向けて装着した例である。In this embodiment, contrary to the first embodiment, the different diameter bead tire 10A is placed on the left side of the vehicle and the different diameter bead tire 1 is used.
This is an example in which 0B is mounted on the right side of the vehicle, that is, with the large diameter bead 12 side facing the inside of the vehicle.
【００２７】本実施例も第１実施例と同様に、車両３０
が矢印Ａ方向へ前進走行して異径ビードタイヤ１０Ａ、
１０Ｂが路面上を回転すると、小径ビード１４側から大
径ビード１２へ作用するコニシティＣと大径ビード１２
から小径ビード１４側へ作用するプライステアＰとが互
いに打ち消し合い、ラテラルフォースディビエイジョン
は小さくなり、異径ビードタイヤ１０Ａ、１０Ｂの直進
安定性及び耐摩耗性が向上する。In this embodiment, as in the first embodiment, the vehicle 30
Is traveling forward in the direction of arrow A and has a different diameter bead tire 10A,
When 10B rotates on the road surface, the conicity C acting from the small diameter bead 14 side to the large diameter bead 12 and the large diameter bead 12
And the price tear P acting on the small diameter bead 14 side cancel each other out, the lateral force division becomes smaller, and the straight running stability and wear resistance of the different diameter bead tires 10A, 10B are improved.
【００２８】なお、本実施例では、大径ビード１２側を
車両内側としたので、車両３０のブレーキスペースを大
きくとることができる利点がある。In the present embodiment, the large-diameter bead 12 side is the inside of the vehicle, so there is an advantage that the brake space of the vehicle 30 can be made large.
【００２９】なお、前記実施例の異径ビードタイヤ１０
Ａ、１０Ｂは２種のタイヤ２２５／５０Ｒ１６と１７５
／Ｒ１３とをつなぎ合わせた形状としたが、２種のタイ
ヤはこれらに限定されるものではない。The different-diameter bead tire 10 of the above embodiment is used.
A and 10B are two kinds of tires 225 / 50R16 and 175
However, the two types of tires are not limited to these.
【００３０】（試験例）異径ビードタイヤ１０Ａ、１０
Ｂ及び従来の１３インチ同径ビードタイヤ、１６インチ
同径ビードタイヤのコニシティ及びプライステアを測定
した結果を以下の表１に示し、異径ビードタイヤ１０
Ａ、１０Ｂ及び従来の１３インチ同径ビードタイヤ３
２、１６インチ同径ビードタイヤ３４をそれぞれ図３乃
至図１０に示すように車両３０に装着し、直進安定性及
び耐摩耗性の評価を行った結果を以下の表２に示す。な
お、図３は前記第１実施例であり、図４は前記第２実施
例である。(Test Example) Different diameter bead tires 10A, 10
The results of measuring the conicity and plysteer of B and the conventional 13-inch bead tire having the same diameter and the 16-inch bead tire having the same diameter are shown in Table 1 below.
A, 10B and conventional 13-inch bead tire 3 with the same diameter
Table 2 below shows the results of the straight running stability and the wear resistance of the 2 and 16 inch bead tires 34 having the same diameter mounted on the vehicle 30 as shown in FIGS. 3 to 10, respectively. 3 is the first embodiment and FIG. 4 is the second embodiment.
【００３１】１３インチ同径ビードタイヤ３２及び１６
インチ同径ビードタイヤ３４は、共にベルトは２層であ
り、最外ベルトは右上がりに傾斜している。13 inch bead tires 32 and 16 having the same diameter
In the bead tires 34 with the same diameter, the belt has two layers, and the outermost belt is inclined upward to the right.
【００３２】コニシティ及びプライステアは、ドラム試
験機によって測定した結果である。また、直進安定性
は、運転者が車両を運転した際のフィーリングを指数化
したものであり、耐摩耗性は４万ｋｍ〜５万ｋｍ走行後
の残溝深さを走行距離で割った数値を４輪で平均して指
数化したものである。なお、評価結果は、２２５／５０
Ｒ１６同径ビードタイヤの評価試験結果を１００とし
て、数値が大の方が良好なことを示す。また、タイヤの
内圧はいずれのタイヤも２．０kgf ／cm2 であり、試験
車両は２０００ccクラスの乗用車とした。Conicity and plysteer are the results measured by a drum tester. The straight running stability is an index of the feeling when the driver drives the vehicle, and the wear resistance is the residual groove depth after running 40,000 km to 50,000 km divided by the running distance. The values are averaged over four wheels and indexed. The evaluation result is 225/50
The larger the numerical value is, the better the evaluation test result of the R16 bead tire having the same diameter is 100. The internal pressure of each tire was 2.0 kgf / cm 2 , and the test vehicle was a 2000 cc class passenger car.
【００３３】ここで、比較例１とは、図５に示すよう
に、異径ビードタイヤ１０Ａを大径ビード１２側が車両
３０の外側になるように装着したものである。したがっ
て、車両３０の右側では、コニシティＣとプライステア
Ｐとが逆向きとなるため、ラテラルフォースディビエイ
ジョンは極わずかであるが、車両３０の左側では、コニ
シティＣとプライステアＰとが同方向となり、ラテラル
フォースディビエイジョンはかなり大きな値となる。こ
のため、直進安定性、耐摩耗性とも劣る。Here, in Comparative Example 1, as shown in FIG. 5, the different diameter bead tire 10A is mounted so that the large diameter bead 12 side is on the outside of the vehicle 30. Therefore, on the right side of the vehicle 30, since the conicity C and the price tear P are in opposite directions, the lateral force division is very small, but on the left side of the vehicle 30, the conicity C and the price tear P are in the same direction. Therefore, the lateral force division is quite large. Therefore, straight running stability and wear resistance are poor.
【００３４】比較例２とは、図６に示すように、異径ビ
ードタイヤ１０Ａを小径ビード１４側が車両３０の外側
になるように装着したものである。したがって、車両３
０の左側では、コニシティＣとプライステアＰとが逆向
きとなるため、ラテラルフォースディビエイジョンは極
わずかであるが、車両３０の右側では、コニシティＣと
プライステアＰとが同方向となり、ラテラルフォースデ
ィビエイジョンはかなり大きな値となる。このため、直
進安定性、耐摩耗性とも劣る。In Comparative Example 2, as shown in FIG. 6, the different diameter bead tire 10A is mounted so that the small diameter bead 14 side is on the outside of the vehicle 30. Therefore, the vehicle 3
On the left side of 0, since the conicity C and the price tear P are in opposite directions, the lateral force division is extremely small, but on the right side of the vehicle 30, the conicity C and the price tear P are in the same direction, and the lateral force is in a lateral direction. The force division is quite large. Therefore, straight running stability and wear resistance are poor.
【００３５】比較例３とは、図７に示すように、タイヤ
サイズ２２５／５０Ｒ１６の１６インチ同径ビードタイ
ヤ３４を車両３０に装着したものであり、コニシティＣ
は小さいがプライステアＰが大きく、プライステアＰが
そのままラテラルフォースディビエイジョンとなる。こ
のため、直進安定性、耐摩耗性とも劣る。In Comparative Example 3, as shown in FIG. 7, a 16-inch bead tire 34 having a tire size of 225 / 50R16 and having the same diameter is mounted on a vehicle 30.
Is small, but the price tear P is large, and the price tear P becomes the lateral force division as it is. Therefore, straight running stability and wear resistance are poor.
【００３６】比較例４とは、図８に示すように、タイヤ
サイズ１７５／Ｒ１３の１３インチ同径ビードタイヤ３
２を車両３０に装着したものであり、比較例３と同様に
コニシティＣは小さいがプライステアＰが大きく、プラ
イステアＰがそのままラテラルフォースディビエイジョ
ンとなる。このため、直進安定性、耐摩耗性とも劣る。
なお、比較例４では、比較例３よりもタイヤ幅が小さい
ため、プライステアＰは比較例３よりは小さい。Comparative Example 4 is a 13 inch bead tire 3 having the same diameter of tire size 175 / R13 as shown in FIG.
2 is mounted on the vehicle 30, the conicity C is small, but the price tear P is large like the comparative example 3, and the price tear P becomes the lateral force division as it is. Therefore, straight running stability and wear resistance are poor.
In Comparative Example 4, the tire width is smaller than in Comparative Example 3, and thus the price tear P is smaller than in Comparative Example 3.
【００３７】比較例５とは、図９に示すように、異径ビ
ードタイヤ１０Ａを大径ビード１２側が車両３０の外側
になるように車両３０の右側に装着して、異径ビードタ
イヤ１０Ｂを大径ビード１２側が車両３０の外側になる
ように車両３０の左側に装着したものであり、車両３０
の両側で、コニシティＣとプライステアＰとの両方が車
両外側向きとなり、ラテラルフォースディビエイジョン
はかなり大きな値となる。このため、直進安定性、耐摩
耗性とも劣る。In Comparative Example 5, as shown in FIG. 9, the different-diameter bead tire 10A is mounted on the right side of the vehicle 30 so that the large-diameter bead 12 side is outside the vehicle 30, and the different-diameter bead tire 10B is attached. It is mounted on the left side of the vehicle 30 so that the large diameter bead 12 side is on the outside of the vehicle 30.
On both sides of the vehicle, both the conicity C and the plysteer P face outward of the vehicle, and the lateral force division becomes a considerably large value. Therefore, straight running stability and wear resistance are poor.
【００３８】また、比較例６とは、図１０に示すよう
に、異径ビードタイヤ１０Ａを小径ビード１４側が車両
３０の外側になるように車両３０の右側に装着して、異
径ビードタイヤ１０Ｂを小径ビード１４側が車両３０の
外側になるように車両３０の左側に装着したものであ
り、車両３０の両側で、コニシティＣとプライステアＰ
との両方が車両内側向きとなるため、ラテラルフォース
ディビエイジョンはかなり大きな値となる。このため、
直進安定性、耐摩耗性とも劣る。In comparison with Comparative Example 6, as shown in FIG. 10, the different diameter bead tire 10A was mounted on the right side of the vehicle 30 so that the small diameter bead 14 side was on the outside of the vehicle 30. Is mounted on the left side of the vehicle 30 so that the small-diameter bead 14 side is on the outside of the vehicle 30, and the conicity C and the price tear P are provided on both sides of the vehicle 30.
Since both and are facing the inside of the vehicle, the lateral force division is quite large. For this reason,
Inferior in straight running stability and wear resistance.
【００３９】[0039]
【表１】 [Table 1]
【００４０】[0040]
【表２】 [Table 2]
【００４１】上記表２の試験結果からも、実施例１及び
実施例２の異径ビードタイヤ１０Ａ、１０Ｂは、比較例
１〜６に比較して、直進安定性、耐摩耗性共に大幅に向
上していることは明らかである。また、異径ビードタイ
ヤ１０Ａ、１０Ｂの装着方法については、小径ビード１
４側を車両内側としても、大径ビード１２側を車両内側
としても大きな性能差は無く、どちらでも差支えないこ
とが表２の試験結果からわかった。From the test results shown in Table 2 above, the different diameter bead tires 10A and 10B of Examples 1 and 2 are greatly improved in straight running stability and wear resistance as compared with Comparative Examples 1 to 6. It is clear that they are doing it. Also, regarding how to install the different diameter bead tires 10A and 10B, refer to the small diameter bead 1
It was found from the test results in Table 2 that there is no large difference in performance between the vehicle side on the 4 side and the vehicle side on the large diameter bead 12 side, and there is no difference in performance.
【００４２】なお、本発明は前記第１実施例及び第２実
施例に限らず、図１１に示すように、４輪全てに異径ビ
ードタイヤ１０Ａを装着してもよい。この場合、車両３
０の前進時に、コニシティＣとプライステアＰとを打ち
消し合うように、車両３０の左右両側共に左向きに小径
ビード１４側を配置するように装着する。The present invention is not limited to the first and second embodiments, but as shown in FIG. 11, all four wheels may be fitted with different diameter bead tires 10A. In this case, vehicle 3
When the vehicle moves forward by 0, the conicality C and the price tear P cancel each other out, and the small diameter beads 14 are mounted so as to be leftward on both the left and right sides of the vehicle 30.
【００４３】また、図示は省略するが、これとは逆に４
輪全てに異径ビードタイヤ１０Ｂを装着してもよい。こ
の場合、車両３０の前進時に、コニシティＣとプライス
テアＰとを打ち消し合うように、車両３０の左右両側共
に右向きに小径ビード１４側を配置するように装着す
る。Although not shown, on the contrary, 4
Different diameter bead tires 10B may be attached to all the wheels. In this case, when the vehicle 30 moves forward, the small diameter beads 14 are mounted so that the conicity C and the price tear P cancel each other out, and the small diameter beads 14 are arranged rightward on both left and right sides of the vehicle 30.
【００４４】[0044]
【発明の効果】請求項１に記載の発明は、ビード径が左
右で異なる、いわゆる異径ビードタイヤにおいて、径方
向最外に位置するベルト層に埋設された補強繊維方向
が、車両装着状態でかつ車両前進時のタイヤ回転方向を
基準にして、ここから内径の大きいビード部側へと９０
°未満の角度をもって傾斜するように構成したので、コ
ニシティとプライステアとが打ち消し合ってラテラルフ
ォースディビエイジョンが小さくなり、従来の異径ビー
ドタイヤのコニシティによる直進不安定性を無くすばか
りでなく、従来の空気入りラジアルタイヤのもつプライ
ステアによる直進安定性及び耐摩耗性への悪影響につい
てをも改善され、従来にない優れた直進性及び耐摩耗性
が得られるという優れた効果を有する。According to the invention described in claim 1, in a so-called different diameter bead tire in which the bead diameter is different between the left and right, the direction of the reinforcing fibers embedded in the belt layer located at the outermost radial direction when the vehicle is mounted. Further, with reference to the direction of rotation of the tire when the vehicle is moving forward, from this point to the side of the bead having a large inner diameter, 90
Since it is configured to incline at an angle of less than °, the lateral force division is reduced by the conicity and the plysteer canceling each other out, and in addition to eliminating the straight running instability due to the conicity of the conventional bead tire with a different diameter, It is also possible to improve the adverse effects on the straight running stability and wear resistance of the pneumatic radial tire due to the plysteer, and it is possible to obtain excellent straight running performance and wear resistance that have never been obtained.
【００４５】また、請求項２に記載の発明は、異径ビー
ドタイヤを、径方向最外に位置するベルト層に埋設され
た補強繊維方向が、車両装着状態でかつ車両前進時のタ
イヤ回転方向を基準にして、ここから内径の大きいビー
ド部側へと９０°未満の角度をもって傾斜するように車
両へ装着するようにしたので、コニシティとプライステ
アとが打ち消し合ってラテラルフォースディビエイジョ
ンが小さくなり、従来の異径ビードタイヤのコニシティ
による直進不安定性を無くすばかりでなく、従来の空気
入りラジアルタイヤのもつプライステアによる直進安定
性及び耐摩耗性への悪影響についてをも改善され、従来
にない優れた直進性及び耐摩耗性が得られ、車両の直進
安定性を向上させることができるという優れた効果を有
する。According to a second aspect of the present invention, in the bead tire having a different diameter, the direction of the reinforcing fibers embedded in the outermost belt layer in the radial direction is the tire rotation direction when the vehicle is mounted and the vehicle is moving forward. Based on the above, the vehicle is mounted so that it inclines toward the bead side with a large inner diameter at an angle of less than 90 °, so the conicity and the plysteer cancel each other out, and the lateral force division is small. In addition to eliminating the straight running instability due to the conicity of conventional different diameter bead tires, the adverse effect on straight running stability and wear resistance due to the price tear of conventional pneumatic radial tires has also been improved, which is unprecedented. It has an excellent effect that excellent straight running property and wear resistance can be obtained and the straight running stability of the vehicle can be improved.
【図１】本発明の第１実施例に係り、異径ビードタイヤ
の上半分を示すタイヤ軸方向に沿った要部断面図であ
る。FIG. 1 is a cross-sectional view of essential parts along the tire axial direction showing an upper half of a different diameter bead tire according to a first embodiment of the present invention.
【図２】本発明の第１実施例に係り、コニシティ及びプ
ライステアの作用する方向を示す異径ビードタイヤ１０
Ａの斜視図である。FIG. 2 relates to the first embodiment of the present invention and shows a bead tire of different diameter 10 showing the directions in which conicity and plysteer act.
It is a perspective view of A.
【図３】本発明の第１実施例に係り、異径ビードタイヤ
を装着した車両を示す車両の平面図である。FIG. 3 is a plan view of a vehicle according to the first embodiment of the present invention, showing a vehicle equipped with bead tires having different diameters.
【図４】本発明の第２実施例に係り、異径ビードタイヤ
を装着した車両を示す車両の平面図である。FIG. 4 is a plan view of a vehicle according to a second embodiment of the present invention, showing a vehicle equipped with bead tires having different diameters.
【図５】比較例１の車両の平面図である。5 is a plan view of a vehicle of Comparative Example 1. FIG.
【図６】比較例２の車両の平面図である。6 is a plan view of a vehicle of Comparative Example 2. FIG.
【図７】比較例３の車両の平面図である。FIG. 7 is a plan view of a vehicle of Comparative Example 3.
【図８】比較例４の車両の平面図である。8 is a plan view of a vehicle of Comparative Example 4. FIG.
【図９】比較例５の車両の平面図である。9 is a plan view of a vehicle of Comparative Example 5. FIG.
【図１０】比較例６の車両の平面図である。FIG. 10 is a plan view of a vehicle of Comparative Example 6.
【図１１】本発明の他の実施例に係り、異径ビードタイ
ヤを装着した車両を示す車両の平面図である。FIG. 11 is a plan view of a vehicle according to another embodiment of the present invention, showing a vehicle equipped with bead tires having different diameters.
１０ 異径ビードタイヤ １２ 大径ビード １４ 小径ビード １８ カーカスプライ １６ カーカス層 ＣＬ タイヤ赤道面 ２２ ベルト層 ２６ 補強コード（補強繊維） 10 Different Diameter Bead Tire 12 Large Diameter Bead 14 Small Diameter Bead 18 Carcass Ply 16 Carcass Layer CL Tire Equatorial Surface 22 Belt Layer 26 Reinforcement Cord (Reinforcing Fiber)
Claims (2)
部と、前記ビード部間に跨がってほぼ円筒状に延びる少
なくとも１枚のカーカスプライからなるカーカスと、タ
イヤ赤道面に対して傾斜すると共に互いに平行配列され
た補強繊維を埋設したベルト層を前記カーカスの径方向
外側に備え、さらに前記ビード部の内径が互いに異なる
異径ビードタイヤにおいて、 径方向最外に位置するベルト層に埋設された補強繊維
が、車両装着状態でかつ車両前進時のタイヤ回転方向を
基準にして内径の大きいビード部側へ９０°未満の角度
をもって傾斜していることを特徴とする異径ビードタイ
ヤ。1. A bead portion formed of at least a pair of beads, and a carcass formed of at least one carcass ply extending in a substantially cylindrical shape across the bead portions; In a bead tire with different diameters, a belt layer having reinforcing fibers embedded in parallel is embedded on the outer side in the radial direction of the carcass, and further, in a bead tire having different diameters, the reinforcement embedded on the outermost belt layer in the radial direction. A different diameter bead tire in which fibers are inclined at an angle of less than 90 ° toward a bead portion side having a large inner diameter in a vehicle mounted state and with respect to a tire rotation direction when the vehicle is moving forward.
部と、前記ビード部間に跨がってほぼ円筒状に延びる少
なくとも１枚のカーカスプライからなるカーカスと、タ
イヤ赤道面に対して傾斜すると共に互いに平行配列され
た補強繊維を埋設したベルト層を前記カーカスの径方向
外側に備え、さらに前記ビード部の内径が互いに異なる
異径ビードタイヤの装着方法において、 径方向最外に位置するベルト層に埋設された補強繊維
が、車両装着状態でかつ車両前進時のタイヤ回転方向を
基準にして内径の大きいビード部側へ９０°未満の角度
をもって傾斜していることを特徴とする異径ビードタイ
ヤの装着方法。2. A bead portion formed of at least a pair of beads, and a carcass formed of at least one carcass ply extending in a substantially cylindrical shape across the bead portions; In a method of mounting bead tires having different diameters, in which a belt layer in which reinforcing fibers arranged in parallel are embedded is provided on the outer side in the radial direction of the carcass, and the inner diameter of the bead portion is different from each other. Mounting of different-diameter bead tires characterized in that the reinforcing fibers are inclined toward the bead portion side having a large inner diameter at an angle of less than 90 ° with respect to the tire rotation direction when the vehicle is mounted and when the vehicle is moving forward. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24523592A JP3313775B2 (en) | 1992-09-14 | 1992-09-14 | Different diameter bead tire and mounting method of different diameter bead tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24523592A JP3313775B2 (en) | 1992-09-14 | 1992-09-14 | Different diameter bead tire and mounting method of different diameter bead tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0692104A true JPH0692104A (en) | 1994-04-05 |
| JP3313775B2 JP3313775B2 (en) | 2002-08-12 |
Family
ID=17130671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24523592A Expired - Fee Related JP3313775B2 (en) | 1992-09-14 | 1992-09-14 | Different diameter bead tire and mounting method of different diameter bead tire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3313775B2 (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0979742A2 (en) * | 1998-08-12 | 2000-02-16 | DaimlerChrysler AG | Tyres for wheels of multitrack vehicles |
| EP1002667A1 (en) * | 1998-10-29 | 2000-05-24 | PIRELLI PNEUMATICI Società per Azioni | Asymmetric pneumatic tire |
| JP2002103928A (en) * | 2000-09-28 | 2002-04-09 | Sumitomo Rubber Ind Ltd | Assembly of heavy-load radial tire and rim |
| KR20020076352A (en) * | 2001-03-28 | 2002-10-11 | 금호산업 주식회사 | A Measuring Method of Mass Unbalance for Pneumatic Tire |
| WO2006030619A1 (en) * | 2004-09-13 | 2006-03-23 | Bridgestone Corporation | Pneumatic tire |
| JP2007083913A (en) * | 2005-09-22 | 2007-04-05 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
| JPWO2006009068A1 (en) * | 2004-07-21 | 2008-05-01 | 株式会社ブリヂストン | Pneumatic tire |
| JP2009525225A (en) * | 2006-02-01 | 2009-07-09 | ソシエテ ド テクノロジー ミシュラン | Tires having seat diameters that are not equal to each other and causing reverse axial displacement in the inflated state |
| JP2012171433A (en) * | 2011-02-18 | 2012-09-10 | Bridgestone Corp | Pneumatic tire |
| JP2016222165A (en) * | 2015-06-02 | 2016-12-28 | 住友ゴム工業株式会社 | Pneumatic tire |
| JP2016222163A (en) * | 2015-06-02 | 2016-12-28 | 住友ゴム工業株式会社 | Pneumatic tire |
| JP6178529B1 (en) * | 2017-01-29 | 2017-08-09 | 博一 松下 | Camber angle compatible tires |
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| WO2020005285A1 (en) * | 2018-06-29 | 2020-01-02 | Compagnie Generale Des Etablissements Michelin | Improved tire tread wear performance using reverse plysteer |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0979742A3 (en) * | 1998-08-12 | 2001-12-12 | DaimlerChrysler AG | Tyres for wheels of multitrack vehicles |
| US6415837B1 (en) | 1998-08-12 | 2002-07-09 | Daimlerchrysler Ag | Pneumatic tire for wheels of multiple-track vehicles |
| EP0979742A2 (en) * | 1998-08-12 | 2000-02-16 | DaimlerChrysler AG | Tyres for wheels of multitrack vehicles |
| EP1002667A1 (en) * | 1998-10-29 | 2000-05-24 | PIRELLI PNEUMATICI Società per Azioni | Asymmetric pneumatic tire |
| JP2002103928A (en) * | 2000-09-28 | 2002-04-09 | Sumitomo Rubber Ind Ltd | Assembly of heavy-load radial tire and rim |
| US6640857B2 (en) * | 2000-09-28 | 2003-11-04 | Sumitomo Rubber Industries, Ltd. | Heavy-duty pneumatic radial tire and wheel rim assembly with support ring |
| KR20020076352A (en) * | 2001-03-28 | 2002-10-11 | 금호산업 주식회사 | A Measuring Method of Mass Unbalance for Pneumatic Tire |
| JPWO2006009068A1 (en) * | 2004-07-21 | 2008-05-01 | 株式会社ブリヂストン | Pneumatic tire |
| JP4628362B2 (en) * | 2004-07-21 | 2011-02-09 | 株式会社ブリヂストン | Pneumatic tire |
| JPWO2006030619A1 (en) * | 2004-09-13 | 2008-05-08 | 株式会社ブリヂストン | Pneumatic tire |
| WO2006030619A1 (en) * | 2004-09-13 | 2006-03-23 | Bridgestone Corporation | Pneumatic tire |
| JP4628364B2 (en) * | 2004-09-13 | 2011-02-09 | 株式会社ブリヂストン | Pneumatic tire |
| US8151843B2 (en) | 2004-09-13 | 2012-04-10 | Bridgestone Corporation | Pneumatic tire with specified outer carcass periphery length and outer ground-contact area |
| JP2007083913A (en) * | 2005-09-22 | 2007-04-05 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
| JP2009525225A (en) * | 2006-02-01 | 2009-07-09 | ソシエテ ド テクノロジー ミシュラン | Tires having seat diameters that are not equal to each other and causing reverse axial displacement in the inflated state |
| JP2012171433A (en) * | 2011-02-18 | 2012-09-10 | Bridgestone Corp | Pneumatic tire |
| JP2016222165A (en) * | 2015-06-02 | 2016-12-28 | 住友ゴム工業株式会社 | Pneumatic tire |
| JP2016222163A (en) * | 2015-06-02 | 2016-12-28 | 住友ゴム工業株式会社 | Pneumatic tire |
| JP6178529B1 (en) * | 2017-01-29 | 2017-08-09 | 博一 松下 | Camber angle compatible tires |
| IT202100031853A1 (en) * | 2021-12-20 | 2023-06-20 | Pirelli | Method for checking the rolling resistance of a tire in motion and method for reducing the consumption of a motor vehicle in motion |
| WO2023119088A1 (en) * | 2021-12-20 | 2023-06-29 | Pirelli Tyre S.P.A. | Method for controlling the rolling resistance of a running tyre and method for reducing the consumption of a running vehicle |
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| JP3313775B2 (en) | 2002-08-12 |
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