JP2002211214A - Pneumatic tire - Google Patents
Pneumatic tireInfo
- Publication number
- JP2002211214A JP2002211214A JP2001005915A JP2001005915A JP2002211214A JP 2002211214 A JP2002211214 A JP 2002211214A JP 2001005915 A JP2001005915 A JP 2001005915A JP 2001005915 A JP2001005915 A JP 2001005915A JP 2002211214 A JP2002211214 A JP 2002211214A
- Authority
- JP
- Japan
- Prior art keywords
- tire
- pneumatic tire
- display
- convex portions
- cross
- 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.)
- Withdrawn
Links
Landscapes
- Tires In General (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、空気入りタイ
ヤ、なかでもそのサイド部の改良に関するものであり、
とくに、そのサイド部に施される文字、記号、図形等の
表示を、縁石その他による擦れ摩耗から有効に保護する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pneumatic tire, and more particularly to an improvement in a side portion thereof.
In particular, the display of characters, symbols, figures, and the like on the side portions is effectively protected from abrasion and abrasion caused by curbs and the like.
【０００２】[0002]
【従来の技術】タイヤのサイド部それ自体を、縁石等に
よる擦れ摩耗から保護するために、そのサイド部に、タ
イヤ周方向に延びる一条もしくは複数本の凸部を設ける
ことは従来から広く一般に行われている。この場合にお
いて、たとえば図３（ａ）に例示するように、タイヤサ
イド部Ｓの最大幅位置付近に半径方向距離の大きい比較
的広幅の一条の凸部Ｐを設けた場合には、そのサイド部
Ｓへの、社名、ブランド名等の表示Ｅの形成域が必然的
に狭くなって視認性が低いという不都合があった。2. Description of the Related Art In order to protect a side portion of a tire itself from abrasion and abrasion caused by curbs or the like, it has been widely and generally used to provide one or more convex portions extending in the tire circumferential direction on the side portion. Have been In this case, as shown in FIG. 3A, for example, when a relatively wide single convex portion P having a large radial distance is provided near the maximum width position of the tire side portion S, the side portion S There is an inconvenience that the formation area of the display E such as the company name and the brand name on S is necessarily narrowed, and the visibility is low.
【０００３】[0003]
【発明が解決しようとする課題】そこで、図３（ｂ）に
例示するように、タイヤの最大幅位置の近傍に設けた、
半径方向に間隔をおく二条の凸部ＰＯ，ＰＯ間に加え、
内側突部ＰＯのさらに内周側に必要な表示Ｅの形成域を
設けることで、広い表示形成域を確保することも行われ
ている。Therefore, as shown in FIG. 3 (b), the tire is provided near the maximum width position of the tire.
In addition to the two radially spaced projections P O , P O ,
By providing a formation region of the display E required further on the inner peripheral side of the inner projection P O, it has also been possible to secure a large display formation area.
【０００４】しかるに、この従来技術では、表示Ｅを、
文字、記号等が浮き彫りとなるように突出させて形成し
ていることから、凸部ＰＯの摩耗に伴って表示Ｅもまた
摩耗することになって、その表示Ｅの比較的早期の消滅
が不可避になるという問題があった。However, in this prior art, the display E is
Character, since the symbols, etc. are formed by projecting so as to be embossed, the display along with the wear of the convex portion P O E also supposed to wear, relatively early disappearance of the display E There was a problem that it became inevitable.
【０００５】この発明は、従来技術が抱えるこのような
問題点を解決することを課題とするものであり、それの
目的とするところは、施された表示のすぐれた視認性を
確保しつつ、凸部が摩滅してなお、その視認性を維持す
ることができる空気入りタイヤを提供するにある。SUMMARY OF THE INVENTION An object of the present invention is to solve such a problem of the prior art, and an object of the present invention is to ensure excellent visibility of a displayed image while maintaining excellent visibility. An object of the present invention is to provide a pneumatic tire that can maintain its visibility even after the protruding portion is worn.
【０００６】[0006]
【課題を解決するための手段】この発明の空気入りタイ
ヤは、タイヤ横断面内で、タイヤサイド部の半径方向に
間隔をおいて位置するとともに、タイヤ周方向に延びる
少なくとも二条の凸部を、タイヤ円周の一個所以上に設
け、それらの凸部間に、文字、記号、図形等の彫り込み
になる凹み表示を設けたものである。The pneumatic tire according to the present invention has at least two convex portions which are located at intervals in the radial direction of the tire side portion and extend in the tire circumferential direction in the tire cross section. It is provided at one or more places on the tire circumference, and a dent display for engraving characters, symbols, figures, and the like is provided between the convex portions.
【０００７】これによれば、二条の凸部間を所要の表示
の表示域とすることで、文字、記号、図形等の表示域を
広く確保することが可能となり、その表示のすぐれた視
認性を実現することができ、また、所要の表示を凹み表
示とすることで、凸部が摩滅等してなお、表示の視認性
を十分に発揮させることができる。[0007] According to this, by providing the display area of the required display between the two convex portions, it is possible to secure a wide display area for characters, symbols, figures, etc., and to have excellent visibility of the display. In addition, by making the required display a dent display, the visibility of the display can be sufficiently exhibited even after the convex portions are worn out.
【０００８】ここで、二条の凸部を、タイヤ最大幅位置
を隔てて設けた場合には、縁石等に最も接触し易い部分
を凸部をもってより有効に保護することができ、また、
凸部間の表示を、より目立つものとすることができる。In the case where the two convex portions are provided at the maximum width of the tire, the portion most likely to contact the curb or the like can be more effectively protected by the convex portions.
The display between the protrusions can be made more conspicuous.
【０００９】より好ましくは、適用リムに装着し、規定
の空気圧を充填したタイヤ姿勢で、二条の凸部を含む半
径方向距離を、タイヤ断面高さの０．１５〜０．４倍の
範囲とし、また好ましくは、凸部の最大突出高さ、すな
わち、凸部がない場合の仮想のサイド部横断面曲線に対
し、それの法線方向に測った凸部最大高さを１〜５ｍｍ
の範囲とする。More preferably, the tire is mounted on the applicable rim and filled with a prescribed air pressure, and a radial distance including the two convex portions is set to a range of 0.15 to 0.4 times the tire cross-section height. Also, preferably, the maximum protrusion height of the convex portion, that is, the maximum height of the convex portion measured in the normal direction of the virtual side portion cross-sectional curve when there is no convex portion is 1 to 5 mm.
Range.
【００１０】前者によれば、縁石、こすれ等のサイドゴ
ム摩耗から、効果的にタイヤを保護することができ、ま
た後者によれば、上記保護効果をより一層高めることが
できる。According to the former, the tire can be effectively protected from side rubber abrasion such as curbs and rubbing, and according to the latter, the above-mentioned protective effect can be further enhanced.
【００１１】なお凹み表示の彫り込み深さは、０．３〜
２ｍｍの範囲とすることが、サイド文字、記号、図形等
の視認性とクラック等に対する耐久性を両立させること
ができて好適である。The engraving depth of the dent display is 0.3 to
A range of 2 mm is preferable because both visibility of side characters, symbols, figures, and the like and durability against cracks and the like can be achieved.
【００１２】ところで、各凸部の横断面形状は、ほぼ台
形形状とすることが、凸部の剛性を保護する上で好まし
く、ほぼ台形形状をなす凸部の突出先端側の底の長さを
他方の底の長さの０．５〜０．９５倍、より好ましくは
０．７〜０．９５倍の範囲とすることにより、凸部のク
ラック、チャンクアウト等の損傷の発生を防止できる。Incidentally, it is preferable that the cross-sectional shape of each convex portion is substantially trapezoidal in order to protect the rigidity of the convex portion. By setting the length of the other bottom to 0.5 to 0.95 times, more preferably 0.7 to 0.95 times, it is possible to prevent the occurrence of damage such as cracks and chunk-outs of the projections.
【００１３】[0013]
【発明の実施の形態】以下にこの発明の実施の形態を図
面に示すところに基づいて説明する。図１はこの発明の
実施の形態を示す横断面図であり、これは、タイヤを、
ＪＡＴＭＡ ＹＥＡＲ ＢＯＯＫに規定される適用リム
Ｒに装着し、同じくＪＡＴＭＡ ＹＥＡＲ ＢＯＯＫに
規定される空気圧を充填した状態で示すものである。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing an embodiment of the present invention.
It is shown in a state where it is mounted on an applicable rim R specified in JATMA YEAR BOOK and filled with air pressure also specified in JATMA YEAR BOOK.
【００１４】図中１はトレッド部を、２は、トレッド部
１のそれぞれの側部から半径方向内方へ延びるサイドウ
ォール部、すなわちサイド部をそれぞれ示し、３は、サ
イド部２の内周側に設けたビード部３を示す。In the figure, 1 is a tread portion, 2 is a side wall portion extending radially inward from each side portion of the tread portion 1, that is, a side portion, and 3 is an inner peripheral side of the side portion 2. 1 shows a bead portion 3 provided in FIG.
【００１５】それぞれのビード部３に配設したビードコ
ア４間には、カーカスたとえばラジアルカーカス５をト
ロイダルに延在させるとともに、このラジアルカーカス
５のそれぞれの側部部分を、ビードコア５の周りで、半
径方向の内側から外側に巻上げて固定する。また、ビー
ドコア４の外周側には、ラジアルカーカス５の本体部分
と巻上げ部分との間に位置して半径方向外方に向けて次
第に厚さを減じるビードフィラ６を配設する。A carcass, for example, a radial carcass 5 extends toroidally between the bead cores 4 disposed on the respective bead portions 3, and each side portion of the radial carcass 5 has a radius around the bead core 5. Roll up from the inside to the outside of the direction and fix. On the outer peripheral side of the bead core 4, a bead filler 6 is disposed between the main body portion and the winding portion of the radial carcass 5 and has a thickness gradually reduced radially outward.
【００１６】そして、ラジアルカーカス５のクラウン部
とトレッド部１との間に、たとえば、複数枚のベルト層
からなり、層間でコードが相互に交差するベルト７を配
設する。なお、かかるベルト７は、たとえば、実質的に
周方向に延びる有機繊維コードの螺旋巻回構造による補
強層８をもってカバーすることができる。Then, between the crown portion of the radial carcass 5 and the tread portion 1, a belt 7 composed of, for example, a plurality of belt layers and having cords crossing each other between the layers is disposed. The belt 7 can be covered with, for example, a reinforcing layer 8 having a spiral wound structure of an organic fiber cord extending substantially in a circumferential direction.
【００１７】ところでここでは、図示の横断面内で、各
サイド部２の半径方向に間隔をおいて位置して、タイヤ
周方向に延びる二条以上、図では二条の凸部９，１０
を、タイヤ円周の一個所以上に設け、好ましくは、それ
らの両凸部９，１０を、タイヤの最大幅位置Ａを隔て
て、たとえばその位置Ａから相互に等しい半径方向距離
に配置する。In this case, two or more protrusions 9 and 10 extending in the circumferential direction of the tire are arranged at intervals in the radial direction of each side portion 2 in the illustrated cross section.
Is provided at one or more locations on the tire circumference, and preferably, the two convex portions 9 and 10 are arranged at a maximum radial position A of the tire, for example, at an equal radial distance from the position A.
【００１８】そして、両凸部９，１０間に、文字、記
号、図示等を彫り込んでなる凹み表示１１を設ける。図
２は、このような凹み表示１１を例示する断面斜視図で
あり、ここでは、各文字は、両凸部間のサイド部表面か
ら窪んで存在する。A dent display 11 engraved with characters, symbols, illustrations, and the like is provided between the two convex portions 9 and 10. FIG. 2 is a cross-sectional perspective view illustrating such a recessed display 11, in which each character is recessed from the surface of the side portion between the two convex portions.
【００１９】また好ましくは、二条の凸部９，１０を含
むタイヤ半径方向距離ｈを、タイヤ断面高さＳＨの０．
１５〜０．４倍の範囲とする。そして、凸部９，１０の
最大突出高さｔは１〜５ｍｍの範囲とし、凹み表示１１
の彫り込み深さは０．３〜２ｍｍの範囲とすることが好
ましい。Preferably, the distance h in the tire radial direction including the two convex portions 9 and 10 is set at 0. 1 of the tire section height SH.
The range is 15 to 0.4 times. The maximum protruding height t of the projections 9 and 10 is in the range of 1 to 5 mm.
The engraving depth is preferably in the range of 0.3 to 2 mm.
【００２０】なお、図に示すところでは、凸部９，１０
の横断面形状をほぼ台形としているが、それをほぼ三角
形形状とすることもでき、図示のようなほぼ台形形状を
選択する場合には、突出先端側の底の長さを、他方の底
の長さの０．５〜０．９５倍の範囲とすることがとくに
好適である。The projections 9 and 10 are shown in FIG.
Although the cross-sectional shape of is substantially trapezoidal, it can be substantially triangular.When selecting a substantially trapezoidal shape as shown in the figure, the length of the bottom on the protruding tip side is set to the length of the other bottom. It is particularly preferable that the length be in the range of 0.5 to 0.95 times the length.
【００２１】以上のように構成してなるタイヤによれ
ば、先の述べたように、すぐれた視認性を確保しつつ、
凸部９，１０が摩滅してなお、凹み表示１１を確実に残
存させることができる。According to the tire configured as described above, as described above, while ensuring excellent visibility,
Even when the projections 9 and 10 are worn out, the dent display 11 can be reliably left.
【００２２】ちなみに、図１に示すタイヤならびに、図
３（ａ），（ｂ）に示すそれぞれタイヤにおける凸部の
最大突出高さをともに２．５ｍｍとし、また、図１およ
び図３（ｂ）に示すそれぞれのタイヤにおける、各凸部
間の半径方向距離を３０ｍｍ、各凸部それ自身の半径方
向幅を５ｍｍとするとともに、図１の凹み表示１１の彫
り込み深さを０．６ｍｍ、図３（ｂ）の表示Ｅの浮き上
がり高さを０．６ｍｍとし、さらに、図３（ａ）に示す
タイヤの、凸部Ｐの半径方向幅を３０ｍｍとした場合
の、表示の大きさ、耐縁石摩耗性のそれぞれに加え、凸
部が摩滅した場合の文字部の視認性を、図３（ａ）に示
す従来タイヤをコントロールとして指数表示すると、表
１に示す通りとなった。なお指数値は大きほどすぐれた
結果を示すものとした。Incidentally, the maximum protrusion height of the protrusions in the tire shown in FIG. 1 and each of the tires shown in FIGS. 3 (a) and 3 (b) is both 2.5 mm, and FIGS. 1 and 3 (b) In each of the tires shown in FIG. 3, the radial distance between the convex portions is 30 mm, the radial width of each convex portion itself is 5 mm, and the engraved depth of the dent display 11 in FIG. 1 is 0.6 mm. 3B, the height of the display E is 0.6 mm, and the size of the display and the curb wear when the radial width of the projection P is 30 mm in the tire shown in FIG. 3A. In addition to each of the properties, the visibility of the character portion when the convex portion is worn is shown as an index in Table 1 when the conventional tire shown in FIG. The larger the index value, the better the result.
【００２３】[0023]
【表１】 [Table 1]
【００２４】これによれば、実施例のタイヤは、耐縁石
摩耗性の点で図３（ａ）に示す従来例タイヤに比して幾
分劣るものの、文字の大きさの点ですぐれ、しかも、高
さ２．５ｍｍの凸部が摩滅してなお、凹み表示１１が摩
滅するまで文字を残存させることができる点で、図３
（ｂ）に示す従来例タイヤよりもすぐれていることが解
る。According to this, the tire of the embodiment is slightly inferior to the conventional tire shown in FIG. FIG. 3 shows that the characters can be left until the protruding portion having a height of 2.5 mm is worn out and the dent display 11 is worn out.
It turns out that it is superior to the conventional example tire shown in (b).
【００２５】[0025]
【発明の効果】かくしてこの発明によれば、表示のすぐ
れた視認性を確保するとともに、その表示の消失を効果
的に遅らせることができる。Thus, according to the present invention, excellent visibility of a display can be ensured, and the disappearance of the display can be effectively delayed.
【図１】 この発明の実施の形態を示すタイヤの横断面
図でなる。FIG. 1 is a cross-sectional view of a tire showing an embodiment of the present invention.
【図２】 凹み表示を示す断面斜視図である。FIG. 2 is a sectional perspective view showing a dent display.
【図３】 従来タイヤを示す部分断面図である。FIG. 3 is a partial sectional view showing a conventional tire.
１ トレッド部 ２ サイド部 ３ ビード部 ５ ラジアルカーカス ９，１０ 凸部 １１ 凹み表示 Ａ タイヤ最大幅位置 ｈ タイヤ半径方向距離 ＳＨ タイヤ断面高さ ｔ 最大突出高さ Ｒ リム 1 Tread part 2 Side part 3 Bead part 5 Radial carcass 9, 10 Convex part 11 Indentation display A Tire maximum width position h Tire radial direction distance SH Tire section height t Maximum protruding height R Rim
Claims (8)
径方向に間隔をおいて位置するとともに、タイヤ周方向
に延びる少なくとも二条の凸部を、タイヤ円周の一個所
以上に設け、それらの凸部間に凹み表示を設けてなる空
気入りタイヤ。1. A tire cross section, at least two convex portions which are located at intervals in a radial direction of a tire side portion and extend in a tire circumferential direction are provided at one or more locations on a tire circumference, and A pneumatic tire having a dent indication between convex portions.
隔てて設けてなる請求項１に記載の空気入りタイヤ。2. The pneumatic tire according to claim 1, wherein the two convex portions are provided with a tire maximum width position therebetween.
タイヤ断面高さの０．１５〜０．４倍の範囲としてなる
請求項１もしくは２に記載の空気入りタイヤ。3. A radial distance including the two convex portions,
The pneumatic tire according to claim 1 or 2, wherein the pneumatic tire has a range of 0.15 to 0.4 times the tire cross-sectional height.
範囲としてなる請求項１〜３のいずれかに記載の空気入
りタイヤ。4. The pneumatic tire according to claim 1, wherein a maximum height of the protrusion is in a range of 1 to 5 mm.
範囲としてなる請求項１〜４のいずれかに記載の空気入
りタイヤ。5. The pneumatic tire according to claim 1, wherein the depth of the dent display is in a range of 0.3 to 2 mm.
してなる請求項１〜５のいずれかに記載の空気入りタイ
ヤ。6. The pneumatic tire according to claim 1, wherein a cross-sectional shape of the projection is substantially trapezoidal.
の底の長さを、他方の底の長さの０．５〜０．９５倍の
範囲としてなる請求項６に記載の空気入りタイヤ。7. The air according to claim 6, wherein the length of the bottom of the substantially trapezoidal convex portion on the protruding tip side is in the range of 0.5 to 0.95 times the length of the other bottom. Containing tires.
としてなる請求項１〜５のいずれかに記載の空気入りタ
イヤ。8. The pneumatic tire according to claim 1, wherein the convex portion has a substantially triangular cross-sectional shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001005915A JP2002211214A (en) | 2001-01-15 | 2001-01-15 | Pneumatic tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001005915A JP2002211214A (en) | 2001-01-15 | 2001-01-15 | Pneumatic tire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002211214A true JP2002211214A (en) | 2002-07-31 |
Family
ID=18873884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001005915A Withdrawn JP2002211214A (en) | 2001-01-15 | 2001-01-15 | Pneumatic tire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002211214A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002307914A (en) * | 2001-04-12 | 2002-10-23 | Bridgestone Corp | Pneumatic tire |
| CN101878121A (en) * | 2007-11-21 | 2010-11-03 | 大陆轮胎德国有限公司 | Pneumatic vehicle tire having protected side wall markings |
| KR101377831B1 (en) | 2012-07-31 | 2014-03-24 | 한국타이어 주식회사 | Pneumatic tire adapting an air tunnel |
| JP2016084028A (en) * | 2014-10-27 | 2016-05-19 | 住友ゴム工業株式会社 | Pneumatic tire |
| US20180009275A1 (en) * | 2015-01-29 | 2018-01-11 | Bridgestone Corporation | Pneumatic tire |
| WO2018180230A1 (en) * | 2017-03-30 | 2018-10-04 | 株式会社ブリヂストン | Tire |
| EP3418078A1 (en) * | 2017-06-21 | 2018-12-26 | Continental Reifen Deutschland GmbH | Elastomer product with a marker and method of producing same |
| US11364749B2 (en) * | 2017-03-28 | 2022-06-21 | The Yokohama Rubber Co., Ltd. | Pneumatic tire, pneumatic-tire mold, two-dimensional-code engraved-mark testing method, and pneumatic-tire manufacturing method |
-
2001
- 2001-01-15 JP JP2001005915A patent/JP2002211214A/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002307914A (en) * | 2001-04-12 | 2002-10-23 | Bridgestone Corp | Pneumatic tire |
| JP4632567B2 (en) * | 2001-04-12 | 2011-02-16 | 株式会社ブリヂストン | Pneumatic tire |
| CN101878121A (en) * | 2007-11-21 | 2010-11-03 | 大陆轮胎德国有限公司 | Pneumatic vehicle tire having protected side wall markings |
| US8733414B2 (en) * | 2007-11-21 | 2014-05-27 | Continental Aktiengesellschaft | Pneumatic vehicle tire with protected sidewall markings |
| KR101377831B1 (en) | 2012-07-31 | 2014-03-24 | 한국타이어 주식회사 | Pneumatic tire adapting an air tunnel |
| JP2016084028A (en) * | 2014-10-27 | 2016-05-19 | 住友ゴム工業株式会社 | Pneumatic tire |
| US20180009275A1 (en) * | 2015-01-29 | 2018-01-11 | Bridgestone Corporation | Pneumatic tire |
| US11364749B2 (en) * | 2017-03-28 | 2022-06-21 | The Yokohama Rubber Co., Ltd. | Pneumatic tire, pneumatic-tire mold, two-dimensional-code engraved-mark testing method, and pneumatic-tire manufacturing method |
| WO2018180230A1 (en) * | 2017-03-30 | 2018-10-04 | 株式会社ブリヂストン | Tire |
| JP2018167771A (en) * | 2017-03-30 | 2018-11-01 | 株式会社ブリヂストン | tire |
| CN110382262A (en) * | 2017-03-30 | 2019-10-25 | 株式会社普利司通 | Tire |
| EP3418078A1 (en) * | 2017-06-21 | 2018-12-26 | Continental Reifen Deutschland GmbH | Elastomer product with a marker and method of producing same |
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