JPH01136801A - Pneumatic tyre - Google Patents
Pneumatic tyreInfo
- Publication number
- JPH01136801A JPH01136801A JP62293943A JP29394387A JPH01136801A JP H01136801 A JPH01136801 A JP H01136801A JP 62293943 A JP62293943 A JP 62293943A JP 29394387 A JP29394387 A JP 29394387A JP H01136801 A JPH01136801 A JP H01136801A
- Authority
- JP
- Japan
- Prior art keywords
- tire
- grooves
- virtual line
- straight
- tread
- 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
- 238000000034 method Methods 0.000 abstract description 2
- 238000011156 evaluation Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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
- B60C11/0302—Tread patterns directional pattern, i.e. with main rolling direction
-
- 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
- B60C2011/0337—Tread patterns characterised by particular design features of the pattern
- B60C2011/0339—Grooves
- B60C2011/0374—Slant grooves, i.e. having an angle of about 5 to 35 degrees to the equatorial plane
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は、レイングループを施した路面の走行時におけ
る直進走行性と排水性とを向上させた空気入りタイヤに
関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a pneumatic tire that has improved straight running performance and drainage performance when running on a road surface provided with rain loops.
雨天時に高速走行するとタイヤが路面から浮き上り操縦
できなくなる現象（ハイドロプレーニング現象）が生じ
ることがある。従来、この対策として、排水性をよくす
るためにレイングループと称される複数の進行方向平行
溝を路面に施すと共に、第３図に示すようにタイヤのト
レッド表面にタイヤ周方向ＥＥ’に平行にストレート溝
１．１°、２．２’ を設けている。When driving at high speeds in the rain, the tires may lift off the road surface and become uncontrollable (hydroplaning). Conventionally, as a countermeasure for this problem, a plurality of grooves parallel to the traveling direction called rain loops are formed on the road surface to improve drainage, and grooves parallel to the tire circumferential direction EE' are formed on the tire tread surface as shown in Fig. 3. Straight grooves are provided at 1.1° and 2.2'.
しかしながら、この場合、ストレート溝が部分的にレイ
ングループに嵌まり込んでハンドルをとられ、直進走行
が困難となるいわゆるレイングループワンダリング現象
が生じるという問題がある。However, in this case, there is a problem in that the straight groove partially fits into the rain loop, causing the steering wheel to be taken off, making it difficult to drive straight, a so-called rain group wandering phenomenon.
本発明は、レイングループを施した路面の走行に際して
ハイドロプレーニング現象およびレイングループワンダ
リング現象が生じるのを防止して、直進走行性と排水性
とを向上させた空気入りタイヤを提供することを目的と
する。SUMMARY OF THE INVENTION An object of the present invention is to provide a pneumatic tire that prevents hydroplaning and rain loop wandering from occurring when running on a road surface provided with rain loops, and improves straight running performance and drainage performance. shall be.
このため、本発明は、トレンド表面にタイヤ周方向に引
いた仮想線を対称軸として左右対称にストレート溝を設
け、これら対称のストレート溝で回転方向に凸にくさび
形を形成せしめてなり、該ストレート溝のタイヤ周方向
に対する角度を１″〜１５°となし、さらに、前記仮想
線がトレッド接地幅のほぼ１／３の幅を有する中央域に
存在することを特徴とする空気入りタイヤを要旨とする
。For this reason, the present invention provides straight grooves symmetrically on the trend surface with an imaginary line drawn in the circumferential direction of the tire as an axis of symmetry, and these symmetrical straight grooves form a wedge shape convex in the rotational direction. Abstract: A pneumatic tire characterized in that the straight groove has an angle of 1'' to 15° with respect to the tire circumferential direction, and further, the virtual line exists in a central region having a width approximately 1/3 of the tread contact width. shall be.
以下、図を参照して本発明の構成につき詳しく説明する
。Hereinafter, the configuration of the present invention will be explained in detail with reference to the drawings.
第１図は、本発明の空気入りタイヤのトレッド表面に形
成されたトレッドパターンの一例を示す説明図である。FIG. 1 is an explanatory diagram showing an example of a tread pattern formed on the tread surface of the pneumatic tire of the present invention.
この第１図において、トレッド表面にタイヤ周方向ＥＥ
’ に引いた仮想線ｔを対称軸として左右対称にストレ
ート溝（主導）１．１’、２．２’、・・・・・・が設
けられている。これら対称のストレート溝１，１゛
・・・・・・は、その一端が互いに合わさって回転方向
Ｔに凸にくさび形を形成している。ストレート溝１．１
”、２゜２°、・・・・・のタイヤ周方向ＥＥ’ に対
する角度θは、１″〜１５″、好ましくは３゜〜８°の
範囲である。１′未満ではレイングループワンダリング
現象が生じ、直進走行が困難となり、一方、１５″を超
えると排水性が悪くなり、ハイドロプレーニング現象に
より操縦安定性が悪化するからである。また、仮想、ｉ
ｔは、トレッド接地幅Ｗのほぼ１／３の幅を有する中央
域に存在する。これは、車両のキャンバ−値に合わせて
仮想線ｔを接地中心にもって行き、排水性をいっそう向
上させるためである。In FIG. 1, the tread surface has a tire circumferential direction EE.
Straight grooves (leading grooves) 1.1', 2.2', . These symmetrical straight grooves 1,1゛
. . . have one ends joined together to form a wedge shape convex in the rotation direction T. Straight groove 1.1
The angle θ with respect to the tire circumferential direction EE' of ", 2°, 2°, ... is in the range of 1" to 15", preferably 3° to 8°. If it is less than 1', the rain group wandering phenomenon occurs. This is because straight-line driving becomes difficult, while if it exceeds 15'', drainage performance deteriorates and steering stability deteriorates due to the hydroplaning phenomenon. Also, virtual, i
t exists in a central region having a width approximately ⅓ of the tread contact width W. This is to bring the virtual line t to the ground contact center in accordance with the camber value of the vehicle, thereby further improving drainage performance.
また、本実施例に示すようにタイヤ幅方向に横溝１０を
設け、ストレート溝１．１′、２゜２°、・・・・・・
を相互に連結してもよい。Further, as shown in this embodiment, lateral grooves 10 are provided in the tire width direction, with straight grooves 1.1', 2° 2°, . . .
may be interconnected.
これによって、水を両側にはじくことが可能となるので
、排水性をさらに向上させることができる。This makes it possible to repel water to both sides, further improving drainage performance.
第２図は本発明の他の実施例であり、第１図の実施例と
異なる点は横溝１０を配置しなかった点にある。FIG. 2 shows another embodiment of the present invention, which differs from the embodiment of FIG. 1 in that no lateral groove 10 is provided.
以下に実施例を示す。Examples are shown below.
実施例
本発明タイヤ（第２図のトレッドパターン、θ＝４．８
°）と従来タイヤ（第３図のトレッドパターン、タ
イヤ周方向に平行に４本のストレート溝を有する）につ
いて、直進走行性と排水性とを評価した。この結果を下
記表１に指数で示す。なお、本発明タイヤと従来タイ−
ヤとは、共にタイヤサイズ１８５／６０ Ｒ１４のタイ
ヤである。Example Tire of the present invention (tread pattern shown in Fig. 2, θ=4.8
) and a conventional tire (the tread pattern shown in FIG. 3, having four straight grooves parallel to the circumferential direction of the tire) were evaluated for straight running performance and drainage performance. The results are shown in Table 1 below using indices. In addition, the tire of the present invention and the conventional tire
Both tires have a tire size of 185/60 R14.
准 ・−〇量・ 法ニ
レイングループワンダリング路でのフィーリング評価、
テストタイヤを車両に装着し、パネラ−３人による相対
評価を平均した。Associate ・−〇Quantity・ Method Evaluation of feeling on wandering road of Nirain group,
The test tires were mounted on a vehicle, and the relative evaluations by three panelists were averaged.
重水ユ■評議太迭：
ハイドロプレーニング評価テスト用ドラムにおけるハイ
ドロプレーニングテスト、ドラム内面に水を張り、テス
トタイヤを装置。ドラムの回転数とタイヤの回転数から
、タイヤが空転しはじめる速度（ハイドロプレーニング
の発生しはじめる速度）を検出し、相対評価する。Shigesui Yu ■ Councilor Taisho: Hydroplaning test on a drum for hydroplaning evaluation test, water is filled on the inside of the drum, and a test tire is set up. The speed at which tires begin to spin (the speed at which hydroplaning begins) is detected from the drum rotation speed and tire rotation speed, and a relative evaluation is performed.
本発明タイヤ 従来タイヤ
直進走行性 １１２ １００排水性
１０３ １００上記表１から、本発明タイヤが
従来タイヤに比し直進走行性、排水性ともに優れている
ことが判る。Tire of the present invention Conventional tire Straight running performance 112 100 Drainage performance
103 100 From Table 1 above, it can be seen that the tires of the present invention are superior to conventional tires in both straight running performance and drainage performance.
以上説明したように本発明によれば、レイングループを
施した路面の走行に際してハイドロプレーニング現象お
よびレイングループワンダリング現象が生じるのを防止
でき、直進走行性と排水性とを十分に向上させることが
できる。さらに、トレッド表面のブロック剛性を高め、
操縦安定性をも向上させることが可能となる。As explained above, according to the present invention, it is possible to prevent hydroplaning and rain group wandering phenomena from occurring when driving on a road surface provided with rain loops, and to sufficiently improve straight running performance and drainage performance. can. Furthermore, the block rigidity on the tread surface has been increased,
It is also possible to improve steering stability.
第１図および第２図は本発明の空気入りタイヤのトレッ
ド表面に形成されたトレンドパターンの実施例をそれぞ
れ示す説明図、第３図は従来の空気入りタイヤのトレッ
ドパターンを示す説明図である。
１．１’ 、２．２’ 、・ ・ ・ストレート溝
、１０・・・横溝、ｔ・・・仮想線、Ｔ・・・回転方向
、Ｗ・・・トレッド接地幅。
代理人 弁理士 小 川 信 −FIGS. 1 and 2 are explanatory views showing examples of trend patterns formed on the tread surface of the pneumatic tire of the present invention, and FIG. 3 is an explanatory view showing the tread pattern of a conventional pneumatic tire. . 1.1', 2.2', . . . Straight groove, 10... Lateral groove, t... Virtual line, T... Rotation direction, W... Tread contact width. Agent Patent Attorney Nobuo Ogawa −
Claims (1)
ら対称のストレート溝で回転方向に凸にくさび形を形成
せしめてなり、該ストレート溝のタイヤ周方向に対する
角度を１０〜１５゜となし、さらに、前記仮想線がトレ
ッド接地幅のほぼ１／３の幅を有する中央域に存在する
ことを特徴とする空気入りタイヤ。[Scope of Claims] Straight grooves are provided on the tread surface symmetrically with an imaginary line drawn in the circumferential direction of the tire as an axis of symmetry, and these symmetrical straight grooves form a wedge shape that is convex in the rotational direction. A pneumatic tire characterized in that the grooves have an angle of 10 to 15 degrees with respect to the tire circumferential direction, and further, the virtual line exists in a central region having a width approximately ⅓ of the tread contact width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62293943A JPH01136801A (en) | 1987-11-24 | 1987-11-24 | Pneumatic tyre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62293943A JPH01136801A (en) | 1987-11-24 | 1987-11-24 | Pneumatic tyre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01136801A true JPH01136801A (en) | 1989-05-30 |
Family
ID=17801182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62293943A Pending JPH01136801A (en) | 1987-11-24 | 1987-11-24 | Pneumatic tyre |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01136801A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5967210A (en) * | 1996-05-20 | 1999-10-19 | Bridgestone Corporation | Pneumatic tires having an asymmetric directional pattern |
| JP2008137649A (en) * | 2006-12-04 | 2008-06-19 | Goodyear Tire & Rubber Co:The | Pneumatic tire with spiral groove |
| EP2123485A1 (en) | 2008-05-17 | 2009-11-25 | Continental Aktiengesellschaft | Pneumatic tyres for a vehicle |
| CN106240244A (en) * | 2016-08-26 | 2016-12-21 | 四川远星橡胶有限责任公司 | A kind of tire being applicable to battery-operated motor cycle |
-
1987
- 1987-11-24 JP JP62293943A patent/JPH01136801A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5967210A (en) * | 1996-05-20 | 1999-10-19 | Bridgestone Corporation | Pneumatic tires having an asymmetric directional pattern |
| JP2008137649A (en) * | 2006-12-04 | 2008-06-19 | Goodyear Tire & Rubber Co:The | Pneumatic tire with spiral groove |
| EP2123485A1 (en) | 2008-05-17 | 2009-11-25 | Continental Aktiengesellschaft | Pneumatic tyres for a vehicle |
| CN106240244A (en) * | 2016-08-26 | 2016-12-21 | 四川远星橡胶有限责任公司 | A kind of tire being applicable to battery-operated motor cycle |
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