JPS6181206A - Pneumatic tire - Google Patents
Pneumatic tireInfo
- Publication number
- JPS6181206A JPS6181206A JP59201446A JP20144684A JPS6181206A JP S6181206 A JPS6181206 A JP S6181206A JP 59201446 A JP59201446 A JP 59201446A JP 20144684 A JP20144684 A JP 20144684A JP S6181206 A JPS6181206 A JP S6181206A
- Authority
- JP
- Japan
- Prior art keywords
- protrusion
- tire
- increased
- shape
- block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/032—Patterns comprising isolated recesses
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〕
本発明は空気入りタイヤに関し、さらに詳しくは、雪上
あるいは不整地における性能が良いためスタッドレスス
ノータイヤとして利用される空気入りタイヤの改良に関
するものである。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a pneumatic tire, and more particularly, to an improvement of a pneumatic tire used as a studless snow tire due to its good performance on snow or rough terrain. .
従来からタイヤのトレンドに鋲を打たないスタッドレス
タイヤは知られているが、そのタイヤデザインは主とし
てブロックおよびカーフを二次元的に工夫し、エツジ効
果(ブロックのエツジが雪の路面にくさびのように喰込
む効果)をねらったものが多い。Studless tires that do not have rivets have been a trend in tires for a long time, but the tire design mainly uses two-dimensional blocks and kerfs to create an edge effect (the edges of the blocks look like wedges in the snowy road surface). Many of them are aimed at the effect of "biting into the body".
したがって、従来のスタッドレススノータイヤのトレッ
ド面は、溝部以外はあまり凹凸が無いため雪路面へのエ
ツジ効果が弱(、アイスバーンや氷上のようなかたい路
面では、スパイク付タイヤに比較し、走行性能が大幅に
劣っていた。Therefore, the tread surface of conventional studless snow tires does not have much unevenness except for the grooves, so the edge effect on snowy roads is weak. was significantly inferior.
本発明の目的はタイヤトレッド面に三次元的な突起を設
けることにより、雪路あるいは不整地における走行性能
を向上させた空気入りタイヤを提供することにある。An object of the present invention is to provide a pneumatic tire with improved running performance on snowy roads or rough terrain by providing three-dimensional protrusions on the tire tread surface.
すなわち本発明は、タイヤトレッド表面のブロックまた
はリブの上に多数の突起を一体的に設けたことを特徴と
する空気入りタイヤを、その要旨とするものである。That is, the gist of the present invention is a pneumatic tire characterized in that a large number of protrusions are integrally provided on blocks or ribs on the tire tread surface.
以下、本発明を実施例により図面を参照して具体的に説
明する。Hereinafter, the present invention will be specifically described by way of examples with reference to the drawings.
第1図は本発明の空気入りタイヤの要部拡大斜視図であ
る。FIG. 1 is an enlarged perspective view of the main parts of the pneumatic tire of the present invention.
図において1はタイヤトレッド面に設けられたブロック
であり、その表面に2個の突起2が一体的に設けられて
いる。突起2は略角錐形であり、その表面は平坦である
が、その中央に円柱形のベントホール遺物3が残ってい
る。In the figure, 1 is a block provided on the tire tread surface, and two projections 2 are integrally provided on the surface of the block. The protrusion 2 has a substantially pyramidal shape, and its surface is flat, but a cylindrical vent hole relic 3 remains in the center.
第2図(A)〜(C)はタイヤトレッドのブロックの縦
断面図であり、(A)における突起2は錐形でその上端
には平面部がなく、連続してベントホール遺物3につな
がっている。第2図(B)の例は錐形の突起2を有し、
上端が平面になっている。第2図(C)の例は柱状の突
起2を有するものである。FIGS. 2(A) to 2(C) are longitudinal cross-sectional views of the tire tread block, and the protrusion 2 in FIG. 2(A) is conical, has no flat surface at its upper end, and is continuously connected to the vent hole relic 3. ing. The example in FIG. 2(B) has a conical projection 2,
The top edge is flat. The example shown in FIG. 2(C) has columnar projections 2.
第3図(A)〜(H)は、上述した突起2の第2図(A
)におけるa−a矢視該当部分の横断面説明図を示して
おり、(A)は円形、(B)は楕円形、(C)は三角形
、(D)は正方形、(E)は五角形、(F)は十字形、
(G)は六角形、(H)は星形の断面を示している。3(A) to (H) are the second diagram (A) of the projection 2 mentioned above.
) shows a cross-sectional explanatory diagram of the corresponding part in the a-a direction, where (A) is circular, (B) is oval, (C) is triangular, (D) is square, (E) is pentagonal, (F) is a cross;
(G) shows a hexagonal cross section, and (H) shows a star-shaped cross section.
以下、更に好ましい態様について説明する。More preferred embodiments will be described below.
突起の形状は図に示したように種々の形状をとることが
できるが、柱状よりhit形の方が好ましい。それは、
根元の面積が大きくなり走行の安定性が増すことと、先
端が鋭くなって雪に喰い込みやすいからである。また、
横断面の形状はエツジ部を増す意味で円形より多角形の
方が好ましい。Although the shape of the protrusion can take various shapes as shown in the figure, a hit shape is more preferable than a column shape. it is,
This is because the area at the base is larger, increasing stability when driving, and the tip is sharper, making it easier to dig into the snow. Also,
The shape of the cross section is preferably polygonal rather than circular in the sense of increasing the edge portion.
突起部分の高さと径については、トレッドゴムのかたさ
にもよるが、径で2.5〜7龍が望ましい。7鶴以上で
はデザインに対し突起の占める割合が大きくなりすぎ、
面圧が下がって、喰い込む力が低下する。2.5龍以下
では突起の剛性が低く、グニャグニャとしたフィーリン
グとなり、Pi!紺性が低下する。(尚、円形以外の場
合、内接する円の直径を径と呼ぶ。又長方形、楕円径、
それ以外の不規則な形状の場合、最も離れた辺の距離を
便宜上“径”と呼ぶ。)この突起を設置することにより
周方向に対するブロック部の投影面積は1〜30%増加
する。Regarding the height and diameter of the protruding portion, it is desirable that the diameter is 2.5 to 7 mm, although it depends on the hardness of the tread rubber. With 7 cranes or more, the proportion of the protrusions in the design becomes too large,
The surface pressure decreases, and the biting force decreases. If it is less than 2.5 dragons, the rigidity of the protrusion is low, giving it a squishy feel, and Pi! Dark blue quality decreases. (In cases other than circular, the diameter of the inscribed circle is called the diameter. Also, the diameter of a rectangle, ellipse,
In the case of other irregular shapes, the distance between the farthest sides is called the "diameter" for convenience. ) By installing this protrusion, the projected area of the block portion in the circumferential direction increases by 1 to 30%.
上記の径において、高さは1鮪以下では突起物としての
効果が薄くなり、511以上では接地したとき剛性が低
く、グニャグニャしたフィーリングとなり操縦性が低下
する。最も実用的な範囲は2〜3.5 mである。また
高さ1〜5mm。In the above-mentioned diameter, if the height is less than 1 tuna, the effect as a protrusion becomes weak, and if it is 511 or more, the rigidity is low when it touches the ground, resulting in a limp feeling and reduced maneuverability. The most practical range is 2-3.5 m. Also, the height is 1 to 5 mm.
好ましくは2〜3.5鶴の範囲内における径が2.5〜
5fiで、あることが更に好ましい。Preferably, the diameter is within the range of 2 to 3.5 cranes.
5fi, more preferably.
突起の材質はゴムであれば特に限定されるものではない
が、他の部分より硬質のゴムを使用することにより、ス
パイク付タイヤに近い性能を得ることができる。この好
ましい硬度は0℃においてショアA50〜73の範囲で
ある。また他の部分との硬度の差を5度以上つけること
が好ましい。The material of the protrusion is not particularly limited as long as it is rubber, but by using rubber that is harder than other parts, performance close to that of a tire with spikes can be obtained. The preferred hardness is in the range of 50 to 73 Shore A at 0°C. Further, it is preferable that the difference in hardness from other parts is 5 degrees or more.
また突起とベントホールの位置を一致させることにより
、従来のベントホール加工に近いコスト、工程で突起を
製作することができる。ベントホールの径は1鶴以下が
好ましく、Ims以上ではベントホール遺物をカットす
るトリム作業性を低下されるので好ましくない。Furthermore, by matching the positions of the protrusion and the vent hole, the protrusion can be manufactured at a cost and process similar to that of conventional vent hole processing. The diameter of the vent hole is preferably 1 Tsuru or less, and if it is Ims or more, it is not preferable because the trim work efficiency for cutting the vent hole remains is reduced.
以下、実験例を挙げて本発明の詳細な説明する。Hereinafter, the present invention will be explained in detail by giving experimental examples.
スノータイヤのブロック1個に3個の円錐状突起を一体
的に設けたタイヤ(サイズ1655R13゜リム5JX
13.空気圧2.0 kg/c+A)を使用し、次の条
件でテストを行った。A tire with three conical protrusions integrated into one snow tire block (size 1655R13° rim 5JX)
13. The test was conducted under the following conditions using an air pressure of 2.0 kg/c+A).
テストコース 北海道 旭川
路 面 圧雪路
車 トヨタAE86
評価方法 フィーリングによるトラクション評価
テストの結果次表の結果を得た。 )また
、耐摩耗性テストでは1顛摩耗するのに20.000k
mを越えた。Test Course Hokkaido Asahikawa Road Snow Compacted Road Vehicle Toyota AE86 Evaluation Method The results of the traction evaluation test based on feeling were obtained as shown in the table below. ) Also, in the wear resistance test, it takes 20,000k to wear one piece.
exceeded m.
本発明の空気入りタイヤは次のような効果を奏する。 The pneumatic tire of the present invention has the following effects.
(])タイヤトレッドのブロックまたはリブの上に設け
た突起が雪路面あるいは不整路面に喰い込み、スタッド
レススノータイヤとして曳行な走行性を得ることができ
る。(]) The protrusions provided on the blocks or ribs of the tire tread dig into the snowy or uneven road surface, making it possible to obtain smooth towing performance as a studless snow tire.
(2) ベントホールの位置に突起を設けることによ
り、従来のタイヤと同等のコストで製作することができ
る。(2) By providing a protrusion at the vent hole position, the tire can be manufactured at the same cost as a conventional tire.
(3) スパイクを使用しないので路面損傷や粉塵公
害を生起することがない。(3) No spikes are used, so there is no road surface damage or dust pollution.
(4)トリムによって廃棄するベントホール遺物を少な
くすることができ省資源を達成できる。(4) By trimming, the amount of vent hole artifacts to be discarded can be reduced, resulting in resource savings.
第1図は本発明のタイヤの要部拡大斜視説明図、第2図
(A)〜(C)はタイヤの要部縦断面説明図、第3図(
A)〜(H)は突起の第2図(A)におけるa−a矢視
該当部分の横断面説明図である。
■−ブロック、2−突起、3−ベントホール遺物。FIG. 1 is an enlarged perspective view of the main parts of the tire of the present invention, FIGS. 2(A) to (C) are longitudinal cross-sectional views of the main parts of the tire, and FIG.
A) to (H) are explanatory cross-sectional views of the portion of the protrusion taken along the line a-a in FIG. 2(A). ■-Block, 2-protrusion, 3-venthole relic.
Claims (1)
突起を一体的に設けたことを特徴とする空気入りタイヤ
。A pneumatic tire characterized by a large number of protrusions integrally provided on blocks or ribs on the tire tread surface.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59201446A JPS6181206A (en) | 1984-09-28 | 1984-09-28 | Pneumatic tire |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59201446A JPS6181206A (en) | 1984-09-28 | 1984-09-28 | Pneumatic tire |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6181206A true JPS6181206A (en) | 1986-04-24 |
Family
ID=16441220
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59201446A Pending JPS6181206A (en) | 1984-09-28 | 1984-09-28 | Pneumatic tire |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6181206A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1989000114A1 (en) * | 1987-07-07 | 1989-01-12 | Toshimi Suzuki | Tread pattern of tire and belt tire |
US5249615A (en) * | 1987-07-07 | 1993-10-05 | Toshimi Suzuki | Two zone tread pattern |
JP3002298U (en) * | 1994-03-23 | 1994-09-20 | 東洋ゴム工業株式会社 | Pneumatic tire with uneven tread surface |
US5603366A (en) * | 1988-03-29 | 1997-02-18 | Bridgestone Corporation | Precure tread for retread tire |
EP1731010A1 (en) * | 2005-06-09 | 2006-12-13 | Martin Brielmaier | Vehicle |
JP2011189779A (en) * | 2010-03-12 | 2011-09-29 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
JP2012040976A (en) * | 2010-08-20 | 2012-03-01 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
JP2013256153A (en) * | 2012-06-11 | 2013-12-26 | Yokohama Rubber Co Ltd:The | Pneumatic tire and method for manufacturing the same |
US10279633B2 (en) * | 2016-12-12 | 2019-05-07 | The Goodyear Tire & Rubber Company | Tread for a snow tire |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1462683A (en) * | 1973-01-23 | 1977-01-26 | Pirelli | Pneumatic tyres and methods of manufacture thereof |
JPS588410A (en) * | 1981-07-06 | 1983-01-18 | Yokohama Rubber Co Ltd:The | Tire with spikes |
-
1984
- 1984-09-28 JP JP59201446A patent/JPS6181206A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1462683A (en) * | 1973-01-23 | 1977-01-26 | Pirelli | Pneumatic tyres and methods of manufacture thereof |
JPS588410A (en) * | 1981-07-06 | 1983-01-18 | Yokohama Rubber Co Ltd:The | Tire with spikes |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1989000114A1 (en) * | 1987-07-07 | 1989-01-12 | Toshimi Suzuki | Tread pattern of tire and belt tire |
US5249615A (en) * | 1987-07-07 | 1993-10-05 | Toshimi Suzuki | Two zone tread pattern |
US5603366A (en) * | 1988-03-29 | 1997-02-18 | Bridgestone Corporation | Precure tread for retread tire |
JP3002298U (en) * | 1994-03-23 | 1994-09-20 | 東洋ゴム工業株式会社 | Pneumatic tire with uneven tread surface |
EP1731010A1 (en) * | 2005-06-09 | 2006-12-13 | Martin Brielmaier | Vehicle |
JP2011189779A (en) * | 2010-03-12 | 2011-09-29 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
JP2012040976A (en) * | 2010-08-20 | 2012-03-01 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
JP2013256153A (en) * | 2012-06-11 | 2013-12-26 | Yokohama Rubber Co Ltd:The | Pneumatic tire and method for manufacturing the same |
US10279633B2 (en) * | 2016-12-12 | 2019-05-07 | The Goodyear Tire & Rubber Company | Tread for a snow tire |
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