JP2007298442A - Tire testing device and testing road surface - Google Patents

Tire testing device and testing road surface Download PDF

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JP2007298442A
JP2007298442A JP2006127598A JP2006127598A JP2007298442A JP 2007298442 A JP2007298442 A JP 2007298442A JP 2006127598 A JP2006127598 A JP 2006127598A JP 2006127598 A JP2006127598 A JP 2006127598A JP 2007298442 A JP2007298442 A JP 2007298442A
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tire
endless belt
temperature
road surface
tread
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JP4890930B2 (en
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Mitsuhiro Kurino
光弘 栗野
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Bridgestone Corp
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Bridgestone Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a tire testing device for measuring accurate tire characteristics by fully increasing a temperature of treads by traveling. <P>SOLUTION: A sliding speed of a tread rubber is increased more than in the case safety walk has been been employed to enhance the frequency, and the temperature of the treads can be increased fully, as compared to the case where safety walk is used, by arranging a road surface member 30 forming a large number of projection parts (aggregate 34) in which irregularities height H is in the range of 0.2-2.0 mm and an interval L between adjacent projections is 1.0-7.0 mm on the surface of an endless belt 18. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、タイヤ試験装置、及びタイヤ試験路面にかかり、特に、試験路面とタイヤとの間の摩擦による温度上昇を大きくすることを可能とするタイヤ試験装置、及び試験用路面に関する。   The present invention relates to a tire test apparatus and a tire test road surface, and more particularly to a tire test apparatus and a test road surface that can increase a temperature rise due to friction between the test road surface and a tire.

室内にてタイヤ単体の操縦性能を評価するためには、例えば特許文献１に示されるようなフラットベルト試験機が使用される。
この種のフラットベルト試験機は、試験タイヤを接触させる路面部分が実際の路面と同様に平坦であるため、試験タイヤを接触させる路面部分が円弧状とされたローラー試験機に対し、タイヤの特性をより正確に測定できる利点がある。
特開昭５５―１２４０４１号公報 In order to evaluate the steering performance of a single tire indoors, a flat belt testing machine as shown in Patent Document 1, for example, is used.
Since this type of flat belt testing machine has a flat road surface that makes contact with the test tire like the actual road surface, the characteristics of the tire are different from a roller testing machine in which the road surface that makes contact with the test tire has an arc shape. There is an advantage that can be measured more accurately.
JP 55-124041 A

試験路面としてのフラットベルト自体はスチール等の金属で形成されており、タイヤとの摩擦係数を確保するためにベルト表面にセーフティーウォーク（紙やすり状の滑り止め材。住友３Ｍの商品名。）を貼り付けて使用するのが一般的である。
しかしながら、近年の車両の高速化に伴い、高温時の操縦性能を評価する際、セーフティーウォークを用いた試験路面では、外気温度などをコントロールしなければ高温領域（例えば、トレッドの温度が７０°Ｃ以上）での操縦性能を評価することができず、タイヤの評価として使用できない場合が発生することがあった。 The flat belt itself as the test road surface is made of metal such as steel, and a safety walk (sandpaper-like non-slip material, trade name of Sumitomo 3M) is provided on the belt surface to ensure a coefficient of friction with the tire. It is common to paste and use.
However, with the recent increase in the speed of vehicles, when evaluating the steering performance at high temperatures, on the test road surface using the safety walk, if the outside air temperature or the like is not controlled, the temperature range (for example, the tread temperature is 70 ° C). In some cases, the steering performance cannot be evaluated and the tire cannot be used for evaluation.

これは、セーフティーウォークを貼り付けた試験路面では、試験路面とタイヤとの摩擦によるトレッドの温度上昇が不十分だからである。試験室の室温を高めればトレッドの温度を上昇できるが、この場合にはトレッド以外の部分のタイヤ温度も上昇してしまい、実際の使用状態に近い正確なタイヤ特性（例えば、横力、前後力、セルフアライニングトルク、キャンバースラスト等）を測定できないという問題がある。   This is because the temperature increase of the tread due to the friction between the test road surface and the tire is insufficient on the test road surface to which the safety walk is attached. The temperature of the tread can be increased by raising the room temperature in the test room. In this case, however, the tire temperature in the portion other than the tread also increases, and accurate tire characteristics (for example, lateral force, longitudinal force) that are close to actual use conditions , Self-aligning torque, camber thrust, etc.) cannot be measured.

本発明は、上記問題を解決すべく成されたもので、走行によりトレッドの温度を十分に上昇させ、正確なタイヤ特性を測定可能とするタイヤ試験装置、及び試験用路面の提供を目的とする。   The present invention has been made to solve the above problems, and it is an object of the present invention to provide a tire test apparatus and a test road surface that can sufficiently increase the temperature of a tread by traveling and can measure accurate tire characteristics. .

請求項１に記載の発明は、一対の隔離されたローラーを回転させて前記一対のローラーに掛け渡された無端ベルトを駆動し、前記無端ベルト上でタイヤを回転させてタイヤの特性を測定するタイヤ試験装置であって、前記無端ベルトの表面には、凹凸高さが０．２〜２．０ｍｍ、隣り合う凸と凸の間隔が１．０〜７．０ｍｍとなるように複数の突起が形成されている、ことを特徴としている。   According to the first aspect of the present invention, a pair of isolated rollers are rotated to drive an endless belt stretched between the pair of rollers, and the tire is rotated on the endless belt to measure the tire characteristics. In the tire testing apparatus, a plurality of protrusions are formed on the surface of the endless belt such that the uneven height is 0.2 to 2.0 mm, and the interval between adjacent protrusions is 1.0 to 7.0 mm. It is characterized by being formed.

請求項１に記載のタイヤ試験装置では、無端ベルトを駆動し、無端ベルト上でタイヤを回転させることで、タイヤのトレッドゴムが、凹凸高さが０．２〜２．０ｍｍ、隣り合う凸と凸の間隔が１．０〜７．０ｍｍとされた複数の突起に接触及び離間を繰り返す。そして、このように凹凸高さ、及び隣り合う凸と凸の間隔を設定することで、トレッドゴムの滑り速度を上げ振動数を高くすることにより、セーフティーウォークを用いた場合よりもトレッドの温度を十分に上昇させることができる。   In the tire testing apparatus according to claim 1, by driving the endless belt and rotating the tire on the endless belt, the tread rubber of the tire has an uneven height of 0.2 to 2.0 mm and adjacent protrusions. The contact and separation are repeated for a plurality of protrusions having a convex interval of 1.0 to 7.0 mm. And by setting the unevenness height and the interval between adjacent protrusions in this way, the tread rubber sliding speed is increased and the vibration frequency is increased, so that the temperature of the tread is made higher than when using a safety walk. It can be raised enough.

これにより、タイヤ試験装置において、トレッドの温度を十分に上昇させたタイヤの特性を正確に測定することが可能となる。
なお、凹凸高さが０．２ｍｍ未満では、トレッドゴムの変形が凹凸に追従せず、トレッドの温度を十分に上昇させることが出来なくなる。
隣り合う凸と凸の間隔が１．０ｍｍ未満では、トレッドゴムの変形が凹凸に追従せず、トレッドの温度を十分に上昇させることが出来なくなる。 Thereby, in the tire testing apparatus, it is possible to accurately measure the characteristics of the tire in which the temperature of the tread is sufficiently increased.
If the uneven height is less than 0.2 mm, the deformation of the tread rubber does not follow the unevenness, and the temperature of the tread cannot be sufficiently increased.
If the distance between adjacent protrusions is less than 1.0 mm, the deformation of the tread rubber does not follow the unevenness, and the temperature of the tread cannot be sufficiently increased.

凹凸高さが２．０ｍｍを超えると、路面表面の強度が不足し、試験時に突起が破損する恐れがある。
また、隣り合う凸と凸の間隔が７．０ｍｍを超えると、間隔が長すぎてトレッドの温度を十分に上昇させることが出来なくなる。 When the uneven height exceeds 2.0 mm, the strength of the road surface is insufficient, and the projection may be damaged during the test.
On the other hand, if the distance between adjacent protrusions exceeds 7.0 mm, the distance is too long and the temperature of the tread cannot be sufficiently increased.

請求項２に記載の発明は、一対の隔離されたローラーを回転させて前記一対のローラーに掛け渡された無端ベルトを駆動し、前記無端ベルト上でタイヤを回転させてタイヤの特性を測定するタイヤ試験装置の前記無端ベルトの表面に配置する試験用路面であって、表面に、凹凸高さが０．２〜２．０ｍｍ、隣り合う凸と凸の間隔が１．０〜７．０ｍｍとなるように複数の突起が形成されている、ことを特徴としている。   According to a second aspect of the present invention, a pair of isolated rollers is rotated to drive an endless belt stretched between the pair of rollers, and a tire is rotated on the endless belt to measure the characteristics of the tire. A road surface for testing disposed on the surface of the endless belt of a tire testing device, wherein the surface has an uneven height of 0.2 to 2.0 mm, and the interval between adjacent protrusions is 1.0 to 7.0 mm. It is characterized in that a plurality of protrusions are formed.

請求項２に記載の試験用路面は、無端ベルト上でタイヤを回転させてタイヤの特性を測定するタイヤ試験装置の無端ベルトの表面に配置されて用いられる。
無端ベルトを駆動し、無端ベルト上でタイヤを回転させることで、タイヤのトレッドゴムが、凹凸高さが０．２〜２．０ｍｍ、隣り合う凸と凸の間隔が１．０〜７．０ｍｍとされた複数の突起に接触及び離間を繰り返す。そして、このように凹凸高さ、及び隣り合う凸と凸の間隔を設定することで、トレッドゴムの滑り速度を上げ振動数を高くすることにより、セーフティーウォークを用いた場合よりもトレッドの温度を十分に上昇させることができる（ゴムの温度が上昇することについては、例えば、株式会社グランプリ出版のタイヤ工学２００４年版、５３〜５４頁参照。）
これにより、タイヤ試験装置において、トレッドの温度を十分に上昇させたタイヤの特性を正確に測定することが可能となる。 The road surface for testing described in claim 2 is used by being disposed on the surface of an endless belt of a tire testing apparatus that measures the characteristics of the tire by rotating the tire on the endless belt.
By driving the endless belt and rotating the tire on the endless belt, the tread rubber of the tire has an uneven height of 0.2 to 2.0 mm, and the interval between adjacent protrusions is 1.0 to 7.0 mm. The contact and separation of the plurality of protrusions are repeated. And by setting the unevenness height and the interval between adjacent protrusions in this way, the tread rubber sliding speed is increased and the vibration frequency is increased, so that the temperature of the tread is made higher than when using a safety walk. (See, for example, Tire Engineering 2004 edition of Grand Prix Publishing Co., Ltd., pages 53-54 for the temperature rise of rubber.)
Thereby, in the tire testing apparatus, it is possible to accurately measure the characteristics of the tire in which the temperature of the tread is sufficiently increased.

ここで、凹凸高さが０．２ｍｍ未満では、トレッドゴムの変形が凹凸に追従せず、トレッドの温度を十分に上昇させることが出来なくなる。
隣り合う凸と凸の間隔が１．０ｍｍ未満では、トレッドゴムの変形が凹凸に追従せず、トレッドの温度を十分に上昇させることが出来なくなる。 Here, if the uneven height is less than 0.2 mm, the deformation of the tread rubber does not follow the unevenness, and the temperature of the tread cannot be sufficiently increased.
If the distance between adjacent protrusions is less than 1.0 mm, the deformation of the tread rubber does not follow the unevenness, and the temperature of the tread cannot be sufficiently increased.

凹凸高さが２．０ｍｍを超えると、路面表面の強度が不足し、試験時に突起が破損する恐れがある。
また、隣り合う凸と凸の間隔が７．０ｍｍを超えると、間隔が長すぎてトレッドの温度を十分に上昇させることが出来なくなる。 When the uneven height exceeds 2.0 mm, the strength of the road surface is insufficient, and the projection may be damaged during the test.
On the other hand, if the distance between adjacent protrusions exceeds 7.0 mm, the distance is too long and the temperature of the tread cannot be sufficiently increased.

以上説明したように請求項１に記載のタイヤ試験装置によれば、トレッドが高温となったタイヤの特性を正確に測定することができる、という優れた効果を有する。   As described above, the tire testing apparatus according to claim 1 has an excellent effect that the characteristics of the tire in which the tread has reached a high temperature can be accurately measured.

また、請求項２に記載の試験用路面によれば、無端ベルト上でタイヤを回転させてタイヤの特性を測定するタイヤ試験装置に用いることで、タイヤ試験装置において、トレッドが高温となったタイヤの特性を正確に測定できるようになる、という優れた効果を有する。   Moreover, according to the test road surface of claim 2, the tire in which the tread has a high temperature is used in the tire testing apparatus by using the tire testing apparatus for measuring the characteristics of the tire by rotating the tire on the endless belt. It has an excellent effect that the characteristics can be accurately measured.

以下、図面を参照して本発明の実施の形態の一例を詳細に説明する。
図１に示すように、本実施形態のタイヤ試験装置１０は、いわゆるフラットベルト式のタイヤ試験機であり、ベース１２に駆動ローラー１４、従動ローラー１６を備え、駆動ローラー１４と従動ローラー１６には金属製の無端ベルト１８が掛け渡されている。なお、駆動ローラー１４は、図示しないモーターで回転される。 Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings.
As shown in FIG. 1, the tire testing apparatus 10 according to the present embodiment is a so-called flat belt type tire testing machine, which includes a driving roller 14 and a driven roller 16 on a base 12, and the driving roller 14 and the driven roller 16 include A metal endless belt 18 is stretched over. The driving roller 14 is rotated by a motor (not shown).

さらに、タイヤ試験装置１０は、装着した試験タイヤ２０に姿勢角を与えるフレーム２２、駆動ローラー１４と従動ローラー１６との間に配置されて試験タイヤ２０の荷重を支持するタイヤ荷重支持部２４を備えている。
スリップ角は、フレーム２２の中心部に位置するシャフト２６を回転させることで与えられ、キャンバー角はフレーム全体を前後に傾斜することで与えられる。
また、試験タイヤ２０を装着するスピンドル２８には分力センサーが内蔵されており、コーナリングフォースやセルフアライニングトルク等を検出することができる。 Further, the tire test apparatus 10 includes a frame 22 that gives an attitude angle to the mounted test tire 20, and a tire load support portion 24 that is disposed between the driving roller 14 and the driven roller 16 and supports the load of the test tire 20. ing.
The slip angle is given by rotating the shaft 26 located at the center of the frame 22, and the camber angle is given by tilting the entire frame back and forth.
Further, a component force sensor is built in the spindle 28 on which the test tire 20 is mounted, and cornering force, self-aligning torque, and the like can be detected.

このタイヤ試験装置１０は、以下に詳細に説明する無端ベルト１８の構造以外は、一般に公知のものである。
次に、本実施形態の無端ベルト１８の構造を詳細に説明する。
図２に示すように、無端ベルト１８の表面には、路面部材３０が接着剤等で貼り付けられている。 The tire test apparatus 10 is generally known except for the structure of the endless belt 18 described in detail below.
Next, the structure of the endless belt 18 of this embodiment will be described in detail.
As shown in FIG. 2, a road surface member 30 is attached to the surface of the endless belt 18 with an adhesive or the like.

路面部材３０は、紙、布、ウレタン等の基材３２に、骨材３４を含む液状の合成樹脂３６を塗布して硬化させたものであり、これにより路面部材３０の表面が凹凸形状となっている。
骨材３４としては、例えば、酸化アルミニウム、ガラスビーズ、シリコンカーバイド、セラミックス等の高剛性で、耐摩耗性に優れたものを使用することが好ましい。
また、無端ベルト１８は屈曲して回転するため、合成樹脂３６としては、硬化後においても柔軟性を有する、例えば、ウレタン樹脂、エポキシ樹脂等を用いることが好ましいが、他のものであっても良い。 The road surface member 30 is obtained by applying a liquid synthetic resin 36 containing an aggregate 34 to a base material 32 such as paper, cloth, urethane, and the like, thereby curing the surface of the road surface member 30. ing.
As the aggregate 34, it is preferable to use a material having high rigidity and excellent wear resistance, such as aluminum oxide, glass beads, silicon carbide, ceramics and the like.
Since the endless belt 18 bends and rotates, it is preferable to use, for example, a urethane resin or an epoxy resin as the synthetic resin 36 that is flexible even after curing. good.

ここで、路面部材３０の凹凸高さＨは、０．２〜２．０ｍｍの範囲内とする必要があり、０．２〜０．５ｍｍの範囲内とすることが好ましい。
また、隣り合う凸と凸の間隔Ｌは、１．０〜７．０ｍｍの範囲内とする必要があり、１．２〜３．０ｍｍの範囲内とすることが好ましい。 Here, the uneven height H of the road surface member 30 needs to be in the range of 0.2 to 2.0 mm, and preferably in the range of 0.2 to 0.5 mm.
Moreover, it is necessary to make the space | interval L of an adjacent convex and convex into the range of 1.0-7.0 mm, and it is preferable to set it in the range of 1.2-3.0 mm.

なお、凹凸高さＨ、及び隣り合う凸と凸の間隔Ｌは、ＩＳＯ４２８７−１９９７（ＪＩＳ Ｂ０６０１−２００１に相当）の算術平均あらさＲａ、及び輪郭曲線要素の平均間隔Ｒｓｍに相当するものである。なお、図２中の一点鎖線は平均線を示す。   Note that the uneven height H and the distance L between adjacent protrusions correspond to the arithmetic average roughness Ra of ISO 4287-1997 (corresponding to JIS B0601-2001) and the average interval Rsm of contour curve elements. In addition, the dashed-dotted line in FIG. 2 shows an average line.

（作用）
無端ベルト１８を駆動し、無端ベルト上で試験タイヤ２０を回転させることで、試験タイヤ２０のトレッドゴムが、無端ベルト１８の路面部材３０に配置された複数の突起部分（骨材３４）に接触及び離間を繰り返し、試験タイヤ２０のトレッドゴムが発熱する。 (Function)
By driving the endless belt 18 and rotating the test tire 20 on the endless belt, the tread rubber of the test tire 20 comes into contact with a plurality of protruding portions (aggregates 34) arranged on the road surface member 30 of the endless belt 18. Then, the tread rubber of the test tire 20 generates heat.

本実施形態のように、凹凸高さＨが０．２〜２．０ｍｍ、隣り合う凸と凸の間隔Ｌが１．０〜７．０ｍｍとされた多数の突起部分（骨材３４）を路面表面に配置することにより、セーフティーウォークを用いた場合よりもトレッドゴムの滑り速度を上げ振動数を高くするこができ、セーフティーウォークを用いた場合よりもトレッドの温度を十分に上昇させることができる。
これにより、タイヤ試験装置１０において、トレッドの温度を十分に上昇させた試験タイヤ２０の特性を正確に測定することが可能となる。 As in this embodiment, a large number of protrusions (aggregate 34) having an uneven height H of 0.2 to 2.0 mm and an interval between adjacent protrusions L of 1.0 to 7.0 mm are road surfaces. By placing it on the surface, it is possible to increase the sliding speed of the tread rubber and increase the frequency compared with the case of using the safety walk, and the temperature of the tread can be sufficiently increased compared to the case of using the safety walk. .
As a result, the tire test apparatus 10 can accurately measure the characteristics of the test tire 20 in which the temperature of the tread is sufficiently increased.

なお、凹凸高さＨが０．２ｍｍ未満では、トレッドゴムの変形が凹凸に追従せず、トレッドの温度を十分に上昇させることが出来なくなる。
隣り合う凸と凸の間隔Ｌが１．０ｍｍ未満では、トレッドゴムの変形が凹凸に追従せず、トレッドの温度を十分に上昇させることが出来なくなる。 If the uneven height H is less than 0.2 mm, the deformation of the tread rubber does not follow the unevenness, and the temperature of the tread cannot be sufficiently increased.
If the distance L between adjacent protrusions is less than 1.0 mm, the deformation of the tread rubber does not follow the unevenness, and the temperature of the tread cannot be sufficiently increased.

凹凸高さが２．０ｍｍを超えると、路面表面の強度が不足し、試験時に骨材３４が破損する恐れがある。
また、隣り合う凸と凸の間隔Ｌが７．０ｍｍを超えると、間隔が長すぎてトレッドの温度を十分に上昇させることが出来なくなる。 If the uneven height exceeds 2.0 mm, the strength of the road surface is insufficient, and the aggregate 34 may be damaged during the test.
On the other hand, if the distance L between adjacent protrusions exceeds 7.0 mm, the distance is too long and the temperature of the tread cannot be sufficiently increased.

（試験例）
本発明の効果を確かめるために、セーフティーウォークを貼り付けた無端ベルトを用いた場合と、本発明の適用された無端ベルトを用いた場合とでトレッドの発熱の比較を行った。
実施例：無端ベルトの表面に骨材としてガラスビーズを含んだウレタン樹脂製の路面部材を貼り付けた。凹凸高さＨは０．３ｍｍ、隣り合う凸と凸の間隔Ｌは１．４ｍｍである。
従来例：無端ベルトの表面に、表面粒度１２０メッシュのセーフティーウォークを貼り付けた。 (Test example)
In order to confirm the effect of the present invention, the heat generation of the tread was compared between the case where the endless belt with the safety walk attached was used and the case where the endless belt to which the present invention was applied was used.
Example: A road surface member made of urethane resin containing glass beads as an aggregate was attached to the surface of an endless belt. The unevenness height H is 0.3 mm, and the distance L between adjacent protrusions is 1.4 mm.
Conventional example: A safety walk having a surface particle size of 120 mesh was attached to the surface of an endless belt.

試験は、タイヤサイズ２２５／６０Ｒ１７のタイヤを荷重４０００Ｎ、内圧２００ｋＰａ、速度６０ｋｍ／ｈで走行させ、±１０°のスリップアングルを２ｄｅｇ／ｓｅｃでスイープさせたときの試験時の平均トレッド温度、最大トレッド温度を測定した。
試験の結果、従来例は平均トレッド温度が５０°Ｃ（最大トレッド温度６０°Ｃ）、実施例は平均トレッド温度が６０°Ｃ（最大トレッド温度７０°Ｃ）となり、本発明の路面部材を用いることでトレッドの温度を大幅に上昇できることが確認できた。 The test was carried out at a tire size of 225 / 60R17 with a load of 4000 N, an internal pressure of 200 kPa, a speed of 60 km / h, and a sweep angle of ± 10 ° was swept at 2 deg / sec. The temperature was measured.
As a result of the test, the conventional example has an average tread temperature of 50 ° C. (maximum tread temperature 60 ° C.), and the examples have an average tread temperature of 60 ° C. (maximum tread temperature 70 ° C.). As a result, it was confirmed that the temperature of the tread could be significantly increased.

タイヤ試験装置の概略構成図である。It is a schematic block diagram of a tire testing apparatus. 無端ベルトの拡大断面図である。It is an expanded sectional view of an endless belt.

符号の説明Explanation of symbols

１０ タイヤ試験装置
１４ 駆動ローラー
１６ 従動ローラー
１８ 無端ベルト
２０ 試験タイヤ
３０ 路面部材
３２ 基材
３４ 骨材
３６ 合成樹脂 DESCRIPTION OF SYMBOLS 10 Tire test apparatus 14 Drive roller 16 Driven roller 18 Endless belt 20 Test tire 30 Road surface member 32 Base material 34 Aggregate 36 Synthetic resin

Claims (2)

一対の隔離されたローラーを回転させて前記一対のローラーに掛け渡された無端ベルトを駆動し、前記無端ベルト上でタイヤを回転させてタイヤの特性を測定するタイヤ試験装置であって、
前記無端ベルトの表面には、凹凸高さが０．２〜２．０ｍｍ、隣り合う凸と凸の間隔が１．０〜７．０ｍｍとなるように複数の突起が形成されている、ことを特徴とするタイヤ試験装置。 A tire testing device that rotates a pair of isolated rollers to drive an endless belt spanned between the pair of rollers, rotates a tire on the endless belt, and measures tire characteristics,
A plurality of protrusions are formed on the surface of the endless belt so that the uneven height is 0.2 to 2.0 mm and the interval between adjacent protrusions is 1.0 to 7.0 mm. A tire test apparatus. 一対の隔離されたローラーを回転させて前記一対のローラーに掛け渡された無端ベルトを駆動し、前記無端ベルト上でタイヤを回転させてタイヤの特性を測定するタイヤ試験装置の前記無端ベルトの表面に配置する試験用路面であって、
表面に、凹凸高さが０．２〜２．０ｍｍ、隣り合う凸と凸の間隔が１．０〜７．０ｍｍとなるように複数の突起が形成されている、ことを特徴とする試験用路面。 A surface of the endless belt of a tire testing apparatus that rotates a pair of isolated rollers to drive an endless belt spanned between the pair of rollers and rotates a tire on the endless belt to measure tire characteristics A road surface for testing,
A plurality of protrusions are formed on the surface so that the unevenness height is 0.2 to 2.0 mm and the interval between adjacent protrusions is 1.0 to 7.0 mm. Road surface.
JP2006127598A 2006-05-01 2006-05-01 Tire testing device and road surface for testing Expired - Fee Related JP4890930B2 (en)

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JP2010054316A (en) * 2008-08-28 2010-03-11 Ihi Inspection & Instrumentation Co Ltd Tire tester, road surface irregularity simulation method, outer belt
WO2012109399A2 (en) * 2011-02-11 2012-08-16 Bridgestone Americas Tire Operation, LLC Tire chip and tear test apparatus and method
JP2013104735A (en) * 2011-11-11 2013-05-30 Toyo Tire & Rubber Co Ltd Method of testing rubber wear
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010054316A (en) * 2008-08-28 2010-03-11 Ihi Inspection & Instrumentation Co Ltd Tire tester, road surface irregularity simulation method, outer belt
WO2012109399A2 (en) * 2011-02-11 2012-08-16 Bridgestone Americas Tire Operation, LLC Tire chip and tear test apparatus and method
WO2012109399A3 (en) * 2011-02-11 2012-12-06 Bridgestone Americas Tire Operation, LLC Tire chip and tear test apparatus and method
US8347703B2 (en) 2011-02-11 2013-01-08 Bridgestone Americas Tire Operations, Llc Tire chip and tear test apparatus and method
JP2013104735A (en) * 2011-11-11 2013-05-30 Toyo Tire & Rubber Co Ltd Method of testing rubber wear
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WO2019026733A1 (en) * 2017-08-03 2019-02-07 国際計測器株式会社 Tire testing method, tire testing device, and dispersion device

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