JP5128895B2 - Pneumatic tires for motorcycles - Google Patents

Pneumatic tires for motorcycles Download PDF

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Publication number
JP5128895B2
JP5128895B2 JP2007272989A JP2007272989A JP5128895B2 JP 5128895 B2 JP5128895 B2 JP 5128895B2 JP 2007272989 A JP2007272989 A JP 2007272989A JP 2007272989 A JP2007272989 A JP 2007272989A JP 5128895 B2 JP5128895 B2 JP 5128895B2
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tire
sipe
continuous
lug groove
tread
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JP2009101743A (en
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幸洋 木脇
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Bridgestone Corp
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Bridgestone Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C2200/00—Tyres specially adapted for particular applications
    • B60C2200/10—Tyres specially adapted for particular applications for motorcycles, scooters or the like

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Description

本発明は、タイヤ周方向に対して傾斜する傾斜ラグ溝がトレッド部に形成された自動二輪車用空気入りタイヤに関する。   The present invention relates to a pneumatic tire for a motorcycle in which an inclined lug groove that is inclined with respect to the tire circumferential direction is formed in a tread portion.

従来の自動二輪車用空気入りタイヤでは、グリップ性及び十分な排水性を得ることによって操縦安定性を確保するために、トレッド部に形成された断続もしくは連続した溝に断続したサイプを組み合わせることが通常である（例えば特許文献１参照）。   In conventional pneumatic tires for motorcycles, in order to ensure handling stability by obtaining grip and sufficient drainage, it is usually combined with intermittent sipe formed in the tread part or continuous groove (For example, see Patent Document 1).

しかし、かかる溝やサイプの配設態様を採用したトレッドパターンを有する自動二輪車用空気入りタイヤでは、十分な排水性は確保できるものの、サイプでブロックが細かく分断されるため、十分なグリップ性が得られないことがあった。このことは、特に高入力時の場合や低転がりゴムを用いた場合に顕著であった。
特開平９−１０９６１５号公報 However, in a pneumatic tire for a motorcycle having a tread pattern adopting such a groove or sipe arrangement mode, sufficient drainage can be ensured, but because the block is finely divided by sipe, sufficient grip is obtained. I couldn't. This was particularly noticeable when the input was high or when a low rolling rubber was used.
JP-A-9-109615

本発明は、上記事実を考慮して、グリップ性及び排水性の両者が十分に確保された自動二輪車用空気入りタイヤを提供することを課題とする。   In view of the above facts, an object of the present invention is to provide a pneumatic tire for a motorcycle in which both grip performance and drainage performance are sufficiently secured.

請求項１に記載の発明は、タイヤ回転方向が指定され、トレッド部に形成されタイヤ周方向に連続するジグザグ状の連続サイプと、前記トレッド部に形成され、タイヤ回転に伴って接地部位がタイヤ幅方向外側に徐々に移動するようにタイヤ周方向に対して傾斜しているとともに、前記連続サイプを横断している傾斜ラグ溝と、を有している。 According to the first aspect of the present invention, a zigzag continuous sipe formed in the tread portion and continuous in the tire circumferential direction is designated in the tire rotation direction , and formed in the tread portion. together we are inclined with respect to the tire circumferential direction so as to gradually move outward in the width direction, and a, and inclined lug grooves that traverse the continuous sipe.

請求項１に記載の発明では、タイヤ周方向に連続した連続サイプがトレッド部に形成されているので、入力が高い場合や、転がり抵抗の低いゴムでトレッド部が形成されていた場合でも、連続サイプに隣接する陸部同士が接触し易くて十分なグリップ性を確保することができる。そして、上記のように傾斜していてこの連続サイプを横断する傾斜ラグ溝をトレッド部に形成することで、連続サイプだけでは不十分となる排水性も併せて十分に確保することができる。   In the invention according to claim 1, since the continuous sipe continuous in the tire circumferential direction is formed in the tread portion, even when the input is high or the tread portion is formed with rubber having a low rolling resistance, it is continuous. The land portions adjacent to the sipe are easily in contact with each other, and sufficient grip properties can be secured. And by forming the inclined lug groove which inclines as mentioned above and crosses this continuous sipe in the tread portion, it is possible to sufficiently secure the drainage which becomes insufficient only by the continuous sipe.

本明細書でジグザグ状とは、折れ曲がった部分が形成されていることをいう。請求項１に記載の発明により、良好なグリップ性がより顕著に認められる。 In this specification, the zigzag shape means that a bent portion is formed. According to the first aspect of the present invention , good grip properties are recognized more remarkably.

本発明によれば、グリップ性及び排水性の両者が十分に確保された自動二輪車用空気入りタイヤとすることができる。   ADVANTAGE OF THE INVENTION According to this invention, it can be set as the pneumatic tire for motorcycles in which both grip property and drainage property were fully ensured.

以下、実施形態を挙げ、本発明の実施の形態について説明する。図１は、本発明の一実施形態に係る自動二輪車用空気入りタイヤ１０のタイヤ径方向断面図である。自動二輪車用空気入りタイヤ１０は、左右一対のビード部１２と、ビード部１２からトロイド状に延びるカーカス層１４と、を備えている。   Hereinafter, embodiments will be described and embodiments of the present invention will be described. FIG. 1 is a tire radial direction cross-sectional view of a motorcycle pneumatic tire 10 according to an embodiment of the present invention. The pneumatic tire 10 for a motorcycle includes a pair of left and right bead portions 12 and a carcass layer 14 extending from the bead portion 12 in a toroidal shape.

カーカス層１４は、ビード部１２のビードコア１１にトロイド状に跨っている。カーカス層１４を構成するカーカスプライ（ボディプライ）は一層であっても複数層であってもよい。カーカス層１４が２枚のカーカスプライ１５Ａ、１５Ｂで構成される場合には、カーカスプライ１５Ａ、１５Ｂを構成するコードの方向がラジアル方向（タイヤ周方向に対する角度が９０度である方向）であっても良いが、タイヤ周方向に対するコード角度が３０度〜８５度の範囲のプライを互いに交錯させて使用するバイアス構造としても良い。   The carcass layer 14 straddles the bead core 11 of the bead portion 12 in a toroidal shape. The carcass ply (body ply) constituting the carcass layer 14 may be a single layer or a plurality of layers. When the carcass layer 14 is composed of two carcass plies 15A and 15B, the direction of the cords constituting the carcass plies 15A and 15B is the radial direction (direction in which the angle with respect to the tire circumferential direction is 90 degrees). However, a bias structure in which plies having a cord angle in the range of 30 degrees to 85 degrees with respect to the tire circumferential direction are used in a crossing manner may be used.

カーカスプライ１５Ａ、１５Ｂの端部はビードコア１１で係止され、両側からビードワイヤー１３が挟みこんでいる。なお、カーカスプライ１５Ａ、１５Ｂの端部がビードコア１１を折り返すように巻き上げられていても良い。   The ends of the carcass plies 15A and 15B are locked by the bead core 11, and the bead wires 13 are sandwiched from both sides. The ends of the carcass plies 15A and 15B may be wound up so that the bead core 11 is folded back.

また、自動二輪車用空気入りタイヤ１０は、カーカス層１４のクラウン部１４Ｃのタイヤ径方向外側に、ベルト層として配置されたスパイラルベルト層２０と、溝及びサイプを配置したトレッド部１８とを順次備えている。   The pneumatic tire 10 for a motorcycle sequentially includes a spiral belt layer 20 disposed as a belt layer and a tread portion 18 having grooves and sipes disposed outside the crown portion 14C of the carcass layer 14 in the tire radial direction. ing.

自動二輪車用空気入りタイヤ１０は、グリップ性及び排水性の両者の性能を十分に確保するようなトレッドパターンを形成するために、タイヤ回転方向Ｒが図２に示すように指定されている。   In the pneumatic tire 10 for a motorcycle, the tire rotation direction R is designated as shown in FIG. 2 in order to form a tread pattern that sufficiently secures both grip performance and drainage performance.

図２に示すように、トレッド部１８には、タイヤ周方向に連続する連続サイプ２４がタイヤ幅方向両側にそれぞれ形成されている。また、トレッド部１８には、連続サイプ２４を横断している複数本の傾斜ラグ溝２６が形成されている。   As shown in FIG. 2, the tread portion 18 is formed with continuous sipes 24 continuous in the tire circumferential direction on both sides in the tire width direction. The tread portion 18 is formed with a plurality of inclined lug grooves 26 crossing the continuous sipe 24.

傾斜ラグ溝２６は、タイヤ回転方向Ｒとは逆方向である接地面移動方向Ｌになるに従い、タイヤ赤道面側からタイヤ幅方向外側（トレッド端Ｔの側）に徐々に移動するようにタイヤ周方向に対して傾斜する緩傾斜ラグ溝部３０と、緩傾斜ラグ溝部３０の接地面移動方向側の端部に連続してトレッド端Ｔに開口する急傾斜ラグ溝部３２と、で構成される。接地面移動方向Ｌと緩傾斜ラグ溝部３０とがなす角度αは、接地面移動方向Ｌと急傾斜ラグ溝部３２とがなす角度βに比べて小さい。なお、角度α、βは、何れも鋭角とされている。   The inclined lug groove 26 gradually moves from the tire equatorial plane side to the tire width direction outer side (tread end T side) as the contact surface moving direction L is opposite to the tire rotation direction R. The slanting lug groove part 30 which inclines with respect to the direction, and the steeply sloping lug groove part 32 which opens to the tread end T continuously from the end part of the gently sloping lug groove part 30 on the contact surface moving direction side. The angle α formed by the contact surface moving direction L and the gently inclined lug groove portion 30 is smaller than the angle β formed by the contact surface moving direction L and the steeply inclined lug groove portion 32. The angles α and β are both acute angles.

この構成により、タイヤ回転に伴う接地面の移動によって、緩傾斜ラグ溝部３０に入り込んだ水は、緩傾斜ラグ溝部３０内を接地面移動方向Ｌに移動して急傾斜ラグ溝部３２に入り込み、トレッド端Ｔからタイヤ幅方向外側へ流出して排出され得る構成になっている。   With this configuration, the water that has entered the gently inclined lug groove 30 due to the movement of the ground contact surface as the tire rotates moves in the gently inclined lug groove portion 30 in the contact surface moving direction L and enters the steeply inclined lug groove portion 32, and the tread. It is configured to flow out from the end T to the outside in the tire width direction and be discharged.

連続サイプ２４はジグザグ状にされている。この連続サイプ２４は、緩傾斜ラグ溝部３０よりもタイヤ赤道面側すなわちタイヤ幅方向内側に位置する緩傾斜内側サイプ部４０と、緩傾斜内側サイプ部４０に連続する急傾斜第１サイプ部４２と、急傾斜第１サイプ部４２に連続する緩傾斜外側サイプ部４４と、緩傾斜外側サイプ部４４に連続し隣接する緩傾斜内側サイプ部４０に連続する急傾斜第２サイプ部４６と、がタイヤ周方向に繰り返し連続してなるサイプである。そして、緩傾斜ラグ溝部３０が急傾斜第２サイプ部４６を横断している。緩傾斜内側サイプ部４０及び緩傾斜外側サイプ部４４は何れも緩傾斜ラグ溝部３０に略沿って延びている。また、急傾斜第１サイプ部４２及び急傾斜第２サイプ部４６は、何れも急傾斜ラグ溝部３２に略沿って延びている。   The continuous sipe 24 is zigzag shaped. The continuous sipe 24 includes a gently inclined inner sipe portion 40 located on the tire equatorial plane side, that is, on the inner side in the tire width direction, with respect to the gently inclined lug groove portion 30, and a steeply inclined first sipe portion 42 continuous with the gently inclined inner sipe portion 40. The tire includes a gently inclined outer sipe portion 44 that is continuous with the steeply inclined first sipe portion 42, and a steeply inclined second sipe portion 46 that is continuous with the gently inclined outer sipe portion 44 and continuous with the adjacently inclined inner sipe portion 40. It is a sipe that is continuously repeated in the circumferential direction. Then, the gently inclined lug groove portion 30 crosses the steeply inclined second sipe portion 46. Both the gently inclined inner sipe portion 40 and the gently inclined outer sipe portion 44 extend substantially along the gently inclined lug groove portion 30. The steeply inclined first sipe part 42 and the steeply inclined second sipe part 46 both extend substantially along the steeply inclined lug groove part 32.

各サイプ部の配置位置は、タイヤ幅方向一方側（図２の紙面左側の連続サイプ２４）とタイヤ幅方向他方側（図２の紙面右側の連続サイプ２４）でタイヤ周方向に互いにずれる配置とされている。   The positions of the sipe portions are shifted from each other in the tire circumferential direction on one side in the tire width direction (continuous sipe 24 on the left side in FIG. 2) and on the other side in the tire width direction (continuous sipe 24 on the right side in FIG. 2). Has been.

このように、本実施形態では、タイヤ周方向に連続した連続サイプ２４がトレッド部１８に形成されているので、入力が高い場合や、転がり抵抗の低いゴムでトレッド部１８が形成されていた場合でも、連続サイプ２４に隣接する陸部同士が接触し易くて十分なグリップ性を確保することができる。そして、連続サイプ２４を構成する急傾斜第２サイプ部４６を緩傾斜ラグ溝部３０が横断しているので、連続サイプ２４内の排水性も併せて十分に確保することができる。従って、排水性を阻害することなく操縦安定性を改善することができる。   Thus, in this embodiment, since the continuous sipe 24 continuous in the tire circumferential direction is formed in the tread portion 18, when the input is high or when the tread portion 18 is formed of rubber with low rolling resistance. However, the land portions adjacent to the continuous sipe 24 are easily in contact with each other, and a sufficient grip property can be ensured. And since the gently inclined lug groove part 30 has crossed the steeply inclined 2nd sipe part 46 which comprises the continuous sipe 24, the drainage property in the continuous sipe 24 is fully securable. Therefore, steering stability can be improved without impairing drainage.

また、タイヤ幅方向両側に連続サイプ２４がそれぞれ形成されているので、右旋回、左旋回の何れであっても連続サイプ２４による効果が得られる。
また、連続サイプ２４がジグザグ状であるので、トレッド部１８による良好なグリップ性がより顕著に認められる。 In addition, since the continuous sipes 24 are formed on both sides in the tire width direction, the effect of the continuous sipes 24 can be obtained in either the right turn or the left turn.
Further, since the continuous sipe 24 has a zigzag shape, a good grip property by the tread portion 18 is recognized more remarkably.

＜試験例＞
本発明の効果を確かめるために、本発明者は、上記実施形態の自動二輪車用空気入りタイヤ１０の一例（以下、実施例のタイヤという）、及び、従来の自動二輪車用空気入りタイヤの一例（以下、従来例のタイヤという。図３参照）を用意し乾燥路で走行性能及びハイドロプレーニング性能のテストを行って性能評価を行った。なお、図３に示す従来例のタイヤでは、トレッド部８８の傾斜ラグ溝２６の傾斜方向などは基本的に実施例のタイヤと同じであるが、サイプ９４については、一端では傾斜ラグ溝２６に開口し、他端では陸部内で終端している。 <Test example>
In order to confirm the effect of the present invention, the inventor has an example of the pneumatic tire 10 for a motorcycle according to the above-described embodiment (hereinafter referred to as an example tire) and an example of a conventional pneumatic tire for a motorcycle ( Hereinafter, a tire of a conventional example (see FIG. 3) was prepared, and running performance and hydroplaning performance were tested on a dry road for performance evaluation. In the conventional tire shown in FIG. 3, the inclination direction of the inclined lug groove 26 of the tread portion 88 is basically the same as that of the tire of the embodiment. Open and terminate in the land at the other end.

なお、本試験例では、何れのタイヤでも、タイヤサイズがＭＣＲ１８０／５５ＺＲ１７Ｍ／Ｃ、リムサイズがＭＴ５．５Ｘ１７であり、トレッドゴムは、転がり抵抗の低い商品名ＥＣＯＰＩＡＥＰ８０（（株）ブリヂストン製で、ソーラーカー用のタイヤ）に用いられるゴムで形成されている。
また、本試験例では、何れのタイヤでも、リムに組み込み後、排気量１０００ｃｃのバイクに装着し、内圧２５０ｋＰａとした。 In this test example, in any tire, the tire size is MCR180 / 55ZR17M / C, the rim size is MT5.5X17, and the tread rubber is a product name ECOPIAEP80 (Bridgestone Co., Ltd.) with low rolling resistance. It is made of rubber used in a tire for use.
Further, in this test example, any tire was mounted on a 1000 cc motorcycle after being incorporated in the rim, and the internal pressure was 250 kPa.

本試験例では、乾燥路での走行性能（乾燥路でのグリップ性能）についてはドライバーのフィーリングで評価した。その際、従来例のタイヤにおける評価を指数１００とし、実施例のタイヤについては相対評価となる指数を算出した。また、ハイドロプレーニング性能についてはハイドロプレーニングが発生した速度を測定した。その際、乾燥路での走行性能の評価と同様に、従来のタイヤにおける評価を指数１００とし、実施例のタイヤについては相対評価となる指数を算出した。   In this test example, the driving performance on the dry road (grip performance on the dry road) was evaluated by the feeling of the driver. At that time, the index of the conventional tire was set as index 100, and the index for relative evaluation was calculated for the tire of the example. As for hydroplaning performance, the speed at which hydroplaning occurred was measured. At that time, similarly to the evaluation of the running performance on the dry road, the evaluation in the conventional tire was set to the index 100, and the index to be the relative evaluation was calculated for the tire of the example.

評価結果を表１に示す。

Figure 0005128895
表１の評価結果では指数が大きいほど性能が高いことを示す。表１から判るように、乾燥路での走行性能、ハイドロプレーニング性能の両者とも、従来例のタイヤよりも実施例のタイヤのほうが評価が高くなっていた。 The evaluation results are shown in Table 1.
Figure 0005128895
 The evaluation results in Table 1 indicate that the larger the index, the higher the performance. As can be seen from Table 1, both the running performance on the dry road and the hydroplaning performance were higher in the evaluation of the tire of the example than the tire of the conventional example.

以上、実施形態を挙げて本発明の実施の形態を説明したが、上記実施形態は一例であり、要旨を逸脱しない範囲内で種々変更して実施できる。また、本発明の権利範囲が上記実施形態に限定されないことは言うまでもない。   The embodiments of the present invention have been described with reference to the embodiments. However, the above embodiments are merely examples, and various modifications can be made without departing from the scope of the invention. Needless to say, the scope of rights of the present invention is not limited to the above embodiment.

本発明の一実施形態に係る自動二輪車用空気入りタイヤのタイヤ径方向断面図である。1 is a tire radial direction sectional view of a pneumatic tire for a motorcycle according to an embodiment of the present invention. 本発明の一実施形態に係る自動二輪車用空気入りタイヤのトレッド部を示す平面図である。1 is a plan view showing a tread portion of a pneumatic tire for a motorcycle according to an embodiment of the present invention. 試験例で用いた従来の自動二輪車用空気入りタイヤのトレッド部を示す平面図である。FIG. 6 is a plan view showing a tread portion of a conventional pneumatic tire for a motorcycle used in a test example.

符号の説明Explanation of symbols

１０ 自動二輪車用空気入りタイヤ
１８ トレッド部
２４ 連続サイプ
２６ 傾斜ラグ溝
８８ トレッド部 DESCRIPTION OF SYMBOLS 10 Pneumatic tire for motorcycles 18 Tread part 24 Continuous sipe 26 Inclined lug groove 88 Tread part

Claims (1)

タイヤ回転方向が指定され、
トレッド部に形成されタイヤ周方向に連続するジグザグ状の連続サイプと、
前記トレッド部に形成され、タイヤ回転に伴って接地部位がタイヤ幅方向外側に徐々に移動するようにタイヤ周方向に対して傾斜しているとともに、前記連続サイプを横断している傾斜ラグ溝と、
を有する自動二輪車用空気入りタイヤ。 Tire rotation direction is specified ,
A zigzag continuous sipe formed in the tread portion and continuous in the tire circumferential direction;
An inclined lug groove formed in the tread portion and inclined with respect to the tire circumferential direction so that the ground contact portion gradually moves outward in the tire width direction as the tire rotates and crosses the continuous sipe; ,
A pneumatic tire for motorcycles.
JP2007272989A 2007-10-19 2007-10-19 Pneumatic tires for motorcycles Expired - Fee Related JP5128895B2 (en)

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FR2956356B1 (en) 2010-02-12 2012-06-08 Michelin Soc Tech TIRE FOR TWO - WHEELED VEHICLES COMPRISING A BEARING BAND HAVING A CIRCONFERENTIALLY CONTINUOUS CUT.
FR2956357B1 (en) 2010-02-12 2012-05-18 Michelin Soc Tech TIRE FOR TWO - WHEELED VEHICLES COMPRISING A BEARING BAND HAVING INCISIONS.
JPWO2012176476A1 (en) 2011-06-22 2015-02-23 株式会社ブリヂストン Pneumatic radial tire for passenger cars, method of using the tire, and tire / rim assembly including the tire
JP5444393B2 (en) * 2012-03-01 2014-03-19 住友ゴム工業株式会社 Motorcycle tires
US10899179B2 (en) 2014-10-01 2021-01-26 Bridgestone Corporation Motorcycle tire and tire set
JP6487702B2 (en) * 2015-01-30 2019-03-20 住友ゴム工業株式会社 Pneumatic tires for motorcycles
JP6939495B2 (en) * 2017-12-11 2021-09-22 住友ゴム工業株式会社 Motorcycle tires
JP7126968B2 (en) * 2019-03-01 2022-08-29 株式会社ブリヂストン motorcycle tires

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6136002A (en) * 1984-07-27 1986-02-20 Bridgestone Corp Motorcycle belted tire excellent in grounding characteristic
JPH06183216A (en) * 1992-12-22 1994-07-05 Yokohama Rubber Co Ltd:The Set snow tire for motorcycle
JPH0939516A (en) * 1995-07-25 1997-02-10 Bridgestone Corp Pneumatic tire for two wheeler
JP3643152B2 (en) * 1995-10-24 2005-04-27 株式会社ブリヂストン Pneumatic tire for motorcycle
JP3273736B2 (en) * 1996-08-07 2002-04-15 住友ゴム工業株式会社 Motorcycle tires
JP4658279B2 (en) * 1999-07-29 2011-03-23 株式会社ブリヂストン Pneumatic tires for motorcycles
JP4184674B2 (en) * 2002-02-14 2008-11-19 株式会社ブリヂストン Pneumatic tire
JP2004306906A (en) * 2003-04-10 2004-11-04 Bridgestone Corp Pneumatic tire
JP2005153812A (en) * 2003-11-28 2005-06-16 Bridgestone Corp Pneumatic tire
JP2006076519A (en) * 2004-09-13 2006-03-23 Bridgestone Corp Front tire for bicycle
JP4925660B2 (en) * 2005-12-21 2012-05-09 株式会社ブリヂストン tire
JP4939818B2 (en) * 2006-02-23 2012-05-30 株式会社ブリヂストン Pneumatic tires for motorcycles

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