JPS6133303A - Pneumatic tire - Google Patents

Pneumatic tire

Info

Publication number
JPS6133303A
JPS6133303A JP15304184A JP15304184A JPS6133303A JP S6133303 A JPS6133303 A JP S6133303A JP 15304184 A JP15304184 A JP 15304184A JP 15304184 A JP15304184 A JP 15304184A JP S6133303 A JPS6133303 A JP S6133303A
Authority
JP
Japan
Prior art keywords
tire
bead
sections
sidewall
side wall
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
Application number
JP15304184A
Other languages
Japanese (ja)
Inventor
Isamu Irie
入江　勇
Yasuo Morikawa
森川　庸雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yokohama Rubber Co Ltd
Original Assignee
Yokohama Rubber Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yokohama Rubber Co Ltd filed Critical Yokohama Rubber Co Ltd
Priority to JP15304184A priority Critical patent/JPS6133303A/en
Publication of JPS6133303A publication Critical patent/JPS6133303A/en
Pending legal-status Critical Current

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
    • B60C13/00—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof
    • B60C13/001—Decorating, marking or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Abstract

PURPOSE:To fully absorb the deformation on the surface of a tire that corresponds to the end of the tire component member and its polymerization section in irregular raised patterns and sharply improve the external view of the tire by arranging the patterns. CONSTITUTION:A pneumatic tire E consists of a pair of right and left bead sections B, a pair of right and left side wall sections S connected to these bead sections B, and a tread section T positioned between these side wall sections S. In addition, an irregular raised pattern 10 is arranged at the end Ka of the tire component member K positioned at the side wall sections S, that is, on the surface of the tire that corresponds to a difference in level section generated at the end 1a of the folding section of a carcass layer 1 and that generated at the end 2a of a bead filler 2. As a result, the deformation on the surface of the tire resulting from the difference in level sections can fully be absorbed.

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、サイ
ドウオール部に位置したカーカス層の折り返し端部や重
合部あるいは補強層等、タイヤ構成部材の端部や重合部
に発生する段差に起因するタイヤ表面の外観不良を改善
した空気入りタイヤ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, the present invention relates to a pneumatic tire, and more particularly, the present invention relates to a pneumatic tire. This invention relates to a pneumatic tire that improves the poor appearance of the tire surface caused by steps that occur in the parts and overlapping parts.

〔従来の技術〕　　　゛ 最近、車両の高性能化指向、低燃費化指向に伴って、タ
イヤの軽量化に対する要求は益々厳くなりつつある。従
って、様々な角度からタイヤ重量の軽減が図られている
。[Prior Art] [Recently, with the trend toward higher performance and lower fuel consumption of vehicles, the demand for lighter tires has become increasingly strict. Therefore, efforts are being made to reduce tire weight from various angles.

ところが、トレッド部分やビード部分は地面やリムと接
触する関係上、無闇に軽量化することはできない。そこ
で、残されたサイドウオール部の軽量化すなわちサイド
ウオールゴムの薄肉化が強力に押し進められているのが
現状である。However, since the tread and bead parts come into contact with the ground and the rim, it is not possible to reduce the weight without thinking. Therefore, current efforts are being made to reduce the weight of the remaining sidewall portion, that is, to reduce the thickness of the sidewall rubber.

この結果、サイドウオール部に位置するカーカス層の折
り返し端部や重合部あるいは補強層等、タイヤ構成部材
の端部や重合部に発生する段差が、薄肉化されたサイド
ウオールゴムの表面に出現し、タイヤの外観を著しく悪
化せしめると云う新たな問題が発生した。As a result, steps that occur at the ends and overlapping parts of tire components, such as the folded ends, overlapping parts, and reinforcing layers of the carcass layer located in the sidewall, appear on the surface of the thinned sidewall rubber. A new problem has arisen in that the appearance of the tire is significantly deteriorated.

〔発明の目的〕[Purpose of the invention]

本発明は上述した問題を解消すべく検討の結果、達成さ
れたものである。The present invention was achieved as a result of studies aimed at solving the above-mentioned problems.

従って本発明の目的は、サイドウオール部に位置したカ
ーカス層の折り返し端部や重合部あるいは補強層等、タ
イヤ構成部材の端部や重合部に発生する段差に起因する
タイヤ表面の外観不良を解消した空気入りタイヤを提供
することにある。Therefore, it is an object of the present invention to eliminate the defective appearance of the tire surface caused by steps that occur at the ends and overlapping parts of tire components, such as the folded ends and overlapping parts of the carcass layer located in the sidewall part, or the reinforcing layer. Our goal is to provide pneumatic tires with

〔発明の構成〕[Structure of the invention]

すなわち本発明は、サイドウオール部に位置したタイヤ
構成部材の端部や重合部に該当するタイヤの表面に、不
規則な浮き出し模様を配置し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 an irregular raised pattern is arranged on the surface of the tire corresponding to the end portion of the tire component located in the sidewall portion or the overlapping portion. It is something.

〔実施例〕〔Example〕

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図は本発明の実施例からなる空気入りタイヤの要部
を示す一部を切欠した斜視拡大説明図、第２図は本発明
の効果を確認する実験例に用いたタイヤの正面視説明図
、第３図は第１図に示す空気入りタイヤのサイドウオー
ル部に位置したタイヤ構成部材の端部や重合部を示す一
部を切欠した拡大説明図である。Fig. 1 is a partially cutaway enlarged perspective view showing the main parts of a pneumatic tire according to an embodiment of the present invention, and Fig. 2 is a front view illustration of a tire used in an experimental example to confirm the effects of the present invention. FIG. 3 is an enlarged explanatory view, with a portion cut away, showing the end portions and overlapping portions of the tire constituent members located in the sidewall portion of the pneumatic tire shown in FIG. 1.

図においてＥは、本発明の実施例からなる空気入りタイ
ヤで、サイドウオール部Ｓに位置したタイヤ構成部材に
の端部Ｋａに該当するタイヤの表面に、不規則な浮き出
し模様１０を配置することにより構成されている。゛ さらにこの構造を説明すると、本実施例において空気入
りタイヤＥは、第１図に示すように、左右一対のビード
部Ｂと、このビード部Ｂに連゛なる左右一対のサイドウ
オール部Ｓと、このサイドウオール部Ｓ間に位置するト
レンド部Ｔからなり、この左右一対のビード部Ｂ間に、
タイヤ周方向に対するコード角度が実質的に９０°であ
るカーカス層１が装架され、その両端部をビード部Ｂに
位置するビードワイヤＢｗの周りに内側から外側に向っ
て巻き上げ、この折り返し部がビードワイヤｈ上に位置
するビードフィラー２を包み込んで折り返し前のカーカ
ス層１に密着し、さらに前記トレッド部Ｔにおけるカー
カス層１上に、タイヤ周方向に対するコード角度が１０
’〜３０°で互いに交差する複数層のヘルド層が配置さ
れている。In the figure, E indicates a pneumatic tire according to an embodiment of the present invention, in which an irregular embossed pattern 10 is arranged on the surface of the tire corresponding to the end Ka of the tire component located in the sidewall part S. It is made up of.゛To further explain this structure, the pneumatic tire E in this embodiment has a pair of left and right bead portions B, and a pair of left and right sidewall portions S connected to the bead portions B, as shown in Fig. 1. , consists of a trend part T located between this sidewall part S, and between this pair of left and right bead parts B,
A carcass layer 1 having a cord angle of substantially 90° with respect to the tire circumferential direction is mounted, and both ends of the carcass layer 1 are wound from the inside to the outside around the bead wire Bw located at the bead part B, and this folded part is the bead wire. The bead filler 2 is wrapped around the bead filler 2 located on the tire circumferential direction and is in close contact with the carcass layer 1 before folding.
A plurality of heald layers intersecting each other at ~30° are arranged.

そして本実施例おいては、特に、サイドウオール部Ｓに
位置したタイヤ構成部材にの端部Ｋａ、つまりカーカス
層重の折り返し部の端部１ａに発生する段差部分及び、
ビードフィラー２の端部２ａに発生する段差部分に該当
するタイヤの表面に、不規則な浮き出し模様１０が配置
しである。In this embodiment, in particular, the step portion occurring at the end Ka of the tire component located in the sidewall portion S, that is, the end 1a of the folded portion of the carcass layer,
Irregular embossed patterns 10 are arranged on the surface of the tire corresponding to the step portion that occurs at the end 2a of the bead filler 2.

この浮き出し模様１０を配置する位置は、その他、 ｆａ）　　カーカス層１の重合部１ｂ　（第３図参照）
に発生する段差部分に該当するタイヤの表面、（ｂｌ　
　タイヤの運動性能を向上するために、前記ビード部Ｂ
からシイドウオール部Ｓの基部に亙って配置されている
サイド補強層３（第３図参照）の端部３ａや重合部３ｂ
に発生する段差部分に該当するタイヤの表面、 等がある。The position where this embossed pattern 10 is arranged is as follows: fa) Overlapping part 1b of carcass layer 1 (see Fig. 3)
The surface of the tire corresponding to the step part that occurs in (bl
In order to improve the dynamic performance of the tire, the bead portion B
The end portion 3a and overlapping portion 3b of the side reinforcing layer 3 (see FIG. 3), which are arranged from the base to the base of the side wall portion S.
The surface of the tire corresponds to the step part that occurs, etc.

上述したように、サイドウオール部Ｓに位置するタイヤ
構成部材にの端部Ｋａや重合部Ｋｂに発生する段差部分
に該当するタイヤの表面に不規則な浮き出し模様１０を
配置することにより、上述した段差部分に起因するタイ
ヤ表面の変形を充分吸収することができ、タイヤの外観
を大幅に改善することができる。As described above, by arranging the irregular embossed pattern 10 on the surface of the tire corresponding to the step portion that occurs at the end portion Ka or the overlapped portion Kb of the tire component located in the sidewall portion S, the above-mentioned The deformation of the tire surface caused by the stepped portion can be sufficiently absorbed, and the appearance of the tire can be significantly improved.

なお、前記浮き出し模様１０は小さ過ぎると、上述した
段差部分によるタイヤ外観不良の改善効果が得られない
。従って、上述した段差部分の５０％以上を覆い得るよ
うに、前記浮き出し模様１０を配置することが好ましい
。Note that if the raised pattern 10 is too small, the effect of improving the tire appearance defect due to the step portion described above cannot be obtained. Therefore, it is preferable that the embossed pattern 10 is arranged so as to cover 50% or more of the stepped portion.

また、この浮き出し模様１０のタイヤ表面からの浮き出
し量は、０．１日〜３顛の範囲とすることが好ましい。Further, it is preferable that the amount of the embossed pattern 10 embossed from the tire surface is in the range of 0.1 days to 3 days.

これは、浮き出し模様１０の浮き出し量が０．１鶴未満
であると、上述した段差部分に起因するタイヤ表面の変
形を充分吸収することができず外観不良の改善効果が不
充分であり、また浮き出し模様１０の浮き出し量が３１
１１を超えると、走行中において縁石等により模様が損
傷を受は易く、かえって外観を損なう恐れがあるからで
ある。This is because if the amount of embossment of the embossed pattern 10 is less than 0.1 crane, the deformation of the tire surface caused by the above-mentioned step portion cannot be sufficiently absorbed, and the effect of improving appearance defects is insufficient. Embossed amount of embossed pattern 10 is 31
If it exceeds 11, the pattern is likely to be damaged by curbstones and the like while driving, and the appearance may be impaired.

なお、さらに好ましくは、この浮き出し模様ＩＯのタイ
ヤ表面からの浮き出し量は、０．３ｍｍ〜′３龍の範囲
とすることが望ましい。Further, it is more preferable that the amount of the embossed pattern IO from the tire surface is in the range of 0.3 mm to '3'.

さらに上述した浮き出し模様１０は、不規則であれば抽
象的な図柄でも良いが、静物、風景。Furthermore, the above-mentioned raised pattern 10 may be an abstract pattern as long as it is irregular, but it may also be a still life or landscape.

動物など意味のある具体的な図柄であることが好ましい
。Preferably, it is a meaningful and specific design such as an animal.

〔実験例〕[Experiment example]

本発明の効果を確認するため、次のような実験を実施し
た。In order to confirm the effects of the present invention, the following experiment was conducted.

サイズ１８５　／７０ＨＲ１３のラジアルタイヤ（補強
コードとしてポリエステルコードを用いたカーカス層を
一層配置）のサイドウオール部を、第２図に示すように
四等分し、 （１１第１のゾーンは、図示のように通常の鏡面状態の
ままとし、 （２）第■のゾーンには、図示のように放射状のローレ
ット加工を施し、 （３）第■のゾーンには、図示のように格子状のエツチ
ング加工を施し、 （４）第■のゾーンには、本発明の実施例すなわち、図
示のように、カーカス層１の折り返し部の端部１ａに発
生ずる段差部分及び、ビードフィラー２の端部２ａに発
生する段差部分に該当するタイヤの表面に、不規則な浮
き出し模様１０を施した。The sidewall part of a size 185/70HR13 radial tire (one layer of carcass using polyester cord as reinforcing cord) was divided into four equal parts as shown in Figure 2. (2) Zone ■ is given radial knurling as shown in the figure. (3) Zone ■ is etched in a lattice pattern as shown. (4) In the second zone, the embodiment of the present invention is applied, i.e., as shown in the figure, the stepped portion that occurs at the end 1a of the folded part of the carcass layer 1 and the end 2a of the bead filler 2. Irregular embossed patterns 10 were applied to the surface of the tire corresponding to the step portions that occur.

その結果、 （ａ）　　通常の鏡面状態のままとした第■のゾーンに
は、カーカス層１の折り返し部の端部１ａに発生する段
差部分及び、ビードフィラー２の端部２ａに発生ずる段
差が、そのままの状態で薄肉化されたサイドウオールゴ
ムの表面に出現し、タイヤの外観を著しく悪化した。As a result, (a) In the zone (2), which is left in the normal mirror state, there are a step portion that occurs at the end portion 1a of the folded portion of the carcass layer 1 and a step portion that occurs at the end portion 2a of the bead filler 2. , which appeared on the surface of the thinned sidewall rubber as it was, significantly deteriorating the appearance of the tire.

（ｂｌ　　放射状のローレット加工を施した第■のゾー
ンは、第■のゾーンと比較すると幾分外観不良は改善さ
れるものの、正面から見るとやはり前記段差が、薄肉化
されたサイドウオールゴムの表面に出現し、タイヤの外
観は悪化した。(bl) Although the external appearance of the radially knurled zone (■) is somewhat improved compared to the zone (■), when viewed from the front, the step is still visible on the surface of the thinned sidewall rubber. appeared, and the appearance of the tire deteriorated.

（Ｃ）　　格子状のエツチング加工を施した第■のゾー
ンは、第１及び第■のゾーンと比較すると外観不良は改
善されるものの、斜めから見るとやはり前記段差が、薄
肉化されたサイドウオールゴムの表面に出現し、タイヤ
の外観は悪化した。(C) Although the poor appearance of the lattice-etched zone (2) is improved compared to the first and (2) zones, when viewed from an angle, the step still looks like a thinned sidewall. It appeared on the surface of the rubber, and the appearance of the tire deteriorated.

（ｄ）シかしながら、本発明による第■のゾーンは、上
述したタイヤ構成部材の段差部分に起因するタイヤ表面
の変形が、前記段差部分に該当するタイヤの表面に施し
た不規則な浮き出し模様１０によって吸収され、タイヤ
の外観を大幅に改善することができた。(d) However, the second zone according to the present invention is an irregular embossment caused by the deformation of the tire surface caused by the stepped portion of the tire component described above, which is created on the surface of the tire corresponding to the stepped portion. It was absorbed by the pattern 10, and the appearance of the tire could be significantly improved.

〔発明の効果〕〔Effect of the invention〕

本発明は上述したように、サイドウオール部に位置した
タイヤ構成部材の端部や重合部に該当するタイヤの表面
に、不規則な浮き出し模様を配置したから、次のような
効果を奏する。すなわち、 （１）前記タイヤ構成部材の端部や重合部に発生する段
差に起因するタイヤ表面の変形を、前記浮き出し模様に
より充分吸収せしめることができ、タイヤの外観を大幅
に改善することができる。As described above, the present invention provides the following effects because irregular embossed patterns are arranged on the surface of the tire corresponding to the end portion of the tire component located in the sidewall portion or the overlapping portion. That is, (1) deformation of the tire surface caused by steps occurring at the ends and overlapping parts of the tire constituent members can be sufficiently absorbed by the raised pattern, and the appearance of the tire can be significantly improved. .

（２）　　サイドウオール部の所要位置に配置した前記
浮き出し模様により、車両全体の外観をもを引き立てる
ことができる。(2) The embossed pattern placed at a predetermined position on the sidewall portion can enhance the overall appearance of the vehicle.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の実施例からなる空気入りタイヤの要部
を示す一部を切欠した斜視拡大説明図、第２図は本発明
の効果を確認する実験例に用いたタイヤの正面視説明図
、第３図は第１図に示す空気入りタイヤのサイドウオー
ル部に位置したタイヤ構成部材の端部や重合部を示す一
部を切欠した拡大説明図である。 Ｓ・・・サイドウオール部、Ｋ・・・タイヤ構成部材、
Ｋａ・・・タイヤ構成部材の端部、Ｋｂ・・・タイヤ構
成部材の重合部、１０・・・浮き出し模様。Fig. 1 is a partially cutaway enlarged perspective view showing the main parts of a pneumatic tire according to an embodiment of the present invention, and Fig. 2 is a front view illustration of a tire used in an experimental example to confirm the effects of the present invention. FIG. 3 is an enlarged explanatory view, with a portion cut away, showing the end portions and overlapping portions of the tire constituent members located in the sidewall portion of the pneumatic tire shown in FIG. 1. S...side wall part, K...tire component,
Ka: End of tire component, Kb: Overlapping portion of tire component, 10: Embossed pattern.

Claims (1)

【特許請求の範囲】[Claims] サイドウォール部に位置したタイヤ構成部材の端部や重
合部に該当するタイヤの表面に、不規則な浮き出し模様
を配置したことを特徴とする空気入りタイヤ。A pneumatic tire characterized in that an irregular raised pattern is arranged on the surface of the tire corresponding to the end or overlapping part of the tire component located in the sidewall part.
JP15304184A 1984-07-25 1984-07-25 Pneumatic tire Pending JPS6133303A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15304184A JPS6133303A (en) 1984-07-25 1984-07-25 Pneumatic tire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15304184A JPS6133303A (en) 1984-07-25 1984-07-25 Pneumatic tire

Publications (1)

Publication Number Publication Date
JPS6133303A true JPS6133303A (en) 1986-02-17

Family

ID=15553676

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15304184A Pending JPS6133303A (en) 1984-07-25 1984-07-25 Pneumatic tire

Country Status (1)

Country Link
JP (1) JPS6133303A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07164831A (en) * 1993-12-10 1995-06-27 Bridgestone Corp Pneumatic tire having strip-shaped design
JPH0911713A (en) * 1995-06-28 1997-01-14 Goodyear Tire & Rubber Co:The Tire
JPH09315111A (en) * 1996-06-03 1997-12-09 Bridgestone Corp Pneumatic tire with decoration formed of multiple ridges
JP2004017828A (en) * 2002-06-17 2004-01-22 Sumitomo Rubber Ind Ltd Tire
US20150000815A1 (en) * 2012-01-11 2015-01-01 The Yokohama Rubber Co., Ltd. Pneumatic Tire
US20160137007A1 (en) * 2013-06-14 2016-05-19 The Yokohama Rubber Co., Ltd. Pneumatic Tire

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07164831A (en) * 1993-12-10 1995-06-27 Bridgestone Corp Pneumatic tire having strip-shaped design
JPH0911713A (en) * 1995-06-28 1997-01-14 Goodyear Tire & Rubber Co:The Tire
JPH09315111A (en) * 1996-06-03 1997-12-09 Bridgestone Corp Pneumatic tire with decoration formed of multiple ridges
JP2004017828A (en) * 2002-06-17 2004-01-22 Sumitomo Rubber Ind Ltd Tire
US20150000815A1 (en) * 2012-01-11 2015-01-01 The Yokohama Rubber Co., Ltd. Pneumatic Tire
US20160137007A1 (en) * 2013-06-14 2016-05-19 The Yokohama Rubber Co., Ltd. Pneumatic Tire
US10442251B2 (en) * 2013-06-14 2019-10-15 The Yokohama Rubber Co., Ltd. Pneumatic tire with side wall decorative portion

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