JPH0245202A - Tire - Google Patents
TireInfo
- Publication number
- JPH0245202A JPH0245202A JP63196444A JP19644488A JPH0245202A JP H0245202 A JPH0245202 A JP H0245202A JP 63196444 A JP63196444 A JP 63196444A JP 19644488 A JP19644488 A JP 19644488A JP H0245202 A JPH0245202 A JP H0245202A
- Authority
- JP
- Japan
- Prior art keywords
- tire
- thin layer
- rubber
- tread
- tire body
- 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
- 229920001971 elastomer Polymers 0.000 claims abstract description 28
- 239000005060 rubber Substances 0.000 claims abstract description 28
- -1 butyl halide Chemical class 0.000 claims description 7
- 239000011324 bead Substances 0.000 abstract description 7
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 6
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 5
- 230000006866 deterioration Effects 0.000 description 5
- 230000003712 anti-aging effect Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- UTGQNNCQYDRXCH-UHFFFAOYSA-N N,N'-diphenyl-1,4-phenylenediamine Chemical compound C=1C=C(NC=2C=CC=CC=2)C=CC=1NC1=CC=CC=C1 UTGQNNCQYDRXCH-UHFFFAOYSA-N 0.000 description 1
- OUBMGJOQLXMSNT-UHFFFAOYSA-N N-isopropyl-N'-phenyl-p-phenylenediamine Chemical compound C1=CC(NC(C)C)=CC=C1NC1=CC=CC=C1 OUBMGJOQLXMSNT-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 229920006027 ternary co-polymer Polymers 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
- B60C11/13—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
- B60C11/1307—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove walls
- B60C11/1346—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove walls covered by a rubber different from the tread rubber
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、タイヤの諸勤性能を低下させることな（外表
面の亀裂発生を防止でき、その延命化を計るタイヤに関
する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a tire that can prevent the occurrence of cracks on the outer surface of the tire without degrading its daily service performance, thereby extending its life.
例えば主部を天然ゴム、合成ゴム等のゴム性材で構成す
る車両用タイヤにあっては、長期に亘る使用に際し、そ
の外表面に亀裂等の損傷が発生しやすい、なおその原因
としては、大気中の酸素、オゾン等に起因するタイヤゴ
ム表面の酸化、劣化が考えられ、特にサイドウオールに
おける夕・ｆヤ最大巾位置からトレッド端に至るバット
レス部及びトレッドにおけるパターン溝の溝底部は、接
地、非接地におけるくり返し変形が大きく、前記亀裂の
発生が顕著となる。For example, vehicle tires whose main parts are made of rubber materials such as natural rubber or synthetic rubber are prone to damage such as cracks on the outer surface during long-term use. Oxidation and deterioration of the tire rubber surface may be caused by oxygen, ozone, etc. in the atmosphere, and in particular, the buttress portion from the maximum width position of the sidewall to the tread edge and the groove bottom of the pattern groove in the tread may be affected by contact with the ground, The repeated deformation when not in contact with the ground is large, and the occurrence of the cracks becomes noticeable.
又この対策として、従来、サイドウオール及びトレッド
に用いられるゴム材に例えばＤＰＰＤ。As a countermeasure to this problem, conventional rubber materials used for sidewalls and treads include, for example, DPPD.
Ｉ ＰＰＤなどの種々の老化防止を増量添加し、その耐
候性を向上することが行われている。Increased amounts of various anti-aging substances such as IPPD have been added to improve their weather resistance.
しかしながら、このよ・シなタイヤ構成用ゴム材への老
化防止材の添加は、剛性、弾性、強度等ゴム物性を変化
させタイヤの諸動性詣の低下をもたらすため、思い切っ
た増量対策を行いえず、しかも老化防止剤の含有量はタ
イヤの使用とともに低下するため、その防止効果は極め
て不十分なものである。さらにこのものは、材料コスト
の上昇を招き、又過剰な老化防止剤による変色等の外観
不良を引きおこす可能性もある。However, the addition of anti-aging agents to the rubber materials used in these types of tires changes the physical properties of the rubber such as rigidity, elasticity, and strength, resulting in a decrease in the various dynamics of the tire, so drastic measures to increase the amount are necessary. Moreover, since the content of the anti-aging agent decreases as the tire is used, its preventive effect is extremely insufficient. Furthermore, this may lead to an increase in material costs and may cause poor appearance such as discoloration due to excessive anti-aging agent.
本発明は、外表面を耐候性に優れる特殊ゴムからなる薄
層で被覆することを基本として、タイヤの線動性能を低
下させることなく外表面での亀裂の発生を効果的に防止
しうるタイヤの提供を目的としている。The present invention is based on coating the outer surface with a thin layer made of a special rubber with excellent weather resistance, and the present invention provides a tire that can effectively prevent the occurrence of cracks on the outer surface without reducing the linear performance of the tire. The purpose is to provide
（！！Ｉ！！！ｌを解決するための手段〕前記目的を達
成するため本発明のタイヤは、タイヤ本体の外表面をＥ
ＰＴ又はハロゲン化ブチルを５〜７０ｐｈｒ含有するゴ
ムからなる薄層により被覆している。(Means for Solving !!I!!!l) To achieve the above object, the tire of the present invention has an outer surface of the tire body that is
It is coated with a thin layer of rubber containing 5 to 70 phr of PT or butyl halide.
なお前記薄層は、タイヤ本体の最大巾位置間におけるサ
イドウオール外表面及び溝壁、溝底を含むトレッド外表
面、又は最大巾位置からトレッド端に至るサイドウオー
ル外表面に形成することが望ましく、又その厚さは０．
１〜２．０ｍの範囲内に設定することが好ましい。The thin layer is preferably formed on the outer surface of the sidewall between the maximum width positions of the tire body, the groove wall, and the tread outer surface including the groove bottom, or on the outer surface of the sidewall from the maximum width position to the tread edge, Also, its thickness is 0.
It is preferable to set it within the range of 1 to 2.0 m.
このように構成するタイヤは、ＥＰＴ又はハロゲン化ブ
チルを５〜７０Ｐｈｒ含有する耐候性に優れた特殊ゴム
からなる薄層により外表面のみを被覆しているため、タ
イヤの線動性能の低下を招くことがなく効果的に亀裂の
発生を抑制できる。In tires constructed in this way, only the outer surface is covered with a thin layer made of a special rubber with excellent weather resistance containing 5 to 70 Phr of EPT or butyl halide, which leads to a decrease in the linear performance of the tire. It is possible to effectively suppress the occurrence of cracks without causing any problems.
特にくり返し変形量が太き（亀裂の発生が顕著となるバ
ットレス部即ち最大巾位置からトレッド端に至るサイド
ウオールの外表面及び溝壁、溝底を含むトレッド外表面
を被覆することにより、前記抑制を最も効果的に発揮し
うる。なお前記薄層の厚さを０．１〜２．０閣の範囲内
に設定することが耐亀裂性を維持しかつタイヤの線動性
能の低下を防止するうえで好ましい。In particular, by coating the outer surface of the tread, including the outer surface of the sidewall from the maximum width position to the tread edge, the outer surface of the sidewall, the groove wall, and the groove bottom, where repeated deformation is large (where cracks are likely to occur), In addition, setting the thickness of the thin layer within the range of 0.1 to 2.0 mm maintains crack resistance and prevents deterioration of linear performance of the tire. Yes, it is preferable.
以下本発明の一実施例を図面に基づき説明する。 An embodiment of the present invention will be described below based on the drawings.
第１図においてタイヤ１は、タイヤ本体２の外表面Ｓを
１層３により被覆してなり、該タイヤ本体２は、ビード
コア５が通る両側のビード部６と、該ビード部６から半
径方向外向きにのびるサイドウオール７と、その上端を
継ぐトレッド９とを具えるとともに、ビード部６、サイ
ドウオール７、トレッド９には前記ビードコア５のまわ
りを例えば内側から外側に向かって折返したカーカス１
０の本体部が跨設される。In FIG. 1, a tire 1 is formed by covering an outer surface S of a tire body 2 with a layer 3, and the tire body 2 has bead portions 6 on both sides through which bead cores 5 pass, and a radial direction outward from the bead portions 6. The bead portion 6, the sidewall 7, and the tread 9 are provided with a carcass 1 that is folded around the bead core 5, for example, from the inside to the outside.
The main body section of 0 is installed astride.
又トレッド９には、カーカス１０の外側に例えばコード
を周方向に比較的浅い角度で配列させた一層又は複数層
のベルト層１１を配置するとともにその表面には縦溝、
横溝等からなるトレッド溝Ｇが種々のパターン形状で凹
設される。The tread 9 is provided with one or more belt layers 11 in which cords are arranged at a relatively shallow angle in the circumferential direction on the outside of the carcass 10, and the surface thereof is provided with vertical grooves.
Tread grooves G consisting of lateral grooves etc. are recessed in various pattern shapes.
又このように構成するタイヤ本体２の外表面Ｓ、本例て
はタイヤが最も外に張出す最大中位１１ａ間のサイドウ
オール７の外表面Ｓｌ及び前記トレッド溝Ｇの溝ｇ１ｃ
ｉ、溝底Ｇ２を含むトレッド９の外表面Ｓ２にはその輪
郭に沿って略均−の厚さｔを有して薄層３が形成される
。In addition, the outer surface S of the tire body 2 configured in this way, in this example, the outer surface Sl of the sidewall 7 between the maximum middle point 11a where the tire extends outward most, and the groove g1c of the tread groove G.
i. On the outer surface S2 of the tread 9 including the groove bottom G2, a thin layer 3 having a substantially uniform thickness t is formed along its contour.
又前記８８３は、ＥＰＴ及びハロゲン化ブチルのいずれ
か一方又は双方を含有する耐候性を高めたゴム１２から
なり、前記サイドウオール７、トレッド９とは異質なゴ
ム材で形成される。Further, the 883 is made of a rubber 12 with improved weather resistance that contains one or both of EPT and butyl halide, and is formed of a rubber material different from that of the sidewall 7 and the tread 9.
ここでＥＰＴとはエチレンとプロピレンとをチーグラ触
媒を用いて重合させたものにジエン成分を加えた３元共
重合体であり、又ハロゲン化ブチルは、ブチルゴム内に
塩素、臭素等のハロゲン原子を導入することによって得
られ、ともに耐オゾン性、耐薬品性等の耐候性に優れる
。EPT is a ternary copolymer made by polymerizing ethylene and propylene using a Ziegler catalyst and adding a diene component, and halogenated butyl has halogen atoms such as chlorine and bromine in butyl rubber. Both have excellent weather resistance such as ozone resistance and chemical resistance.
また本例では、ＮＲ５ＳＢＲ，ＢＲ等の他のゴム材と混
用して用いられ、その含有率は５〜７０ｐｈｒの範囲内
、好ましくは１０〜４５ｐｈｒの範囲内である。Further, in this example, it is used in combination with other rubber materials such as NR5SBR and BR, and the content thereof is within the range of 5 to 70 phr, preferably within the range of 10 to 45 phr.
前記含有率が５ ｐｈｒ未滴の場合、耐候性に劣り亀裂
防止効果が不十分となり、又７０ｐ！ぼを超えた場合、
強度、弾性、耐摩耗性、加工性等のゴム物性が低下する
。If the content is less than 5 phr, the weather resistance will be poor and the crack prevention effect will be insufficient; If it exceeds the
Rubber physical properties such as strength, elasticity, abrasion resistance, and processability deteriorate.
なおｐｈｒとはＪ Ｉ Ｓ Ｉ（６２００，番号５１
０２号で定めた配合率表示記号であり、ゴム１００１１
景部における配合重量部数を示す。In addition, phr is JIS I (6200, number 51
This is the compounding ratio display symbol specified in No. 02, and is rubber 10011.
Indicates the number of parts by weight in Kagebu.
又薄層３はその厚みｔがＯ，１〜２．０ ｔｘａの範囲
、特に０．３〜ｌ、 Ｏｍの範囲であることが好ましく
、０．１−未満の場合には厚みが不十分となり亀裂防止
効果が低下し、又２．０園をこえると、ゴム１２の物性
との兼合いによりタイヤ諸動性能を変化させる恐れがあ
り、又薄層３自体のタイヤ本体２からの側層も発生しや
すくなる。Further, the thickness t of the thin layer 3 is preferably in the range of 0.1 to 2.0 txa, particularly in the range of 0.3 to 1.0 m, and if it is less than 0.1, the thickness is insufficient. If the crack prevention effect decreases, and if it exceeds 2.0, the dynamic performance of the tire may change depending on the physical properties of the rubber 12, and the side layer from the tire body 2 of the thin layer 3 itself may more likely to occur.
このように本発明のタイヤ１は、タイヤ本体２内部のゴ
ム組成を変化させるものでなく、その外表面Ｓを、０．
１〜２．０ａｍ範囲の厚さＬを有する薄１１３によって
被覆せしめるものであるため、タイヤの線動性能を低下
させることがなく、従って薄層３として、耐候性の向上
に重点をおいた配合のゴム、即ち従来、タイヤ構成用ゴ
ムとしては使用に制約があった。ＥＰＴ又はハロゲン化
ブチルを含有するゴム１２を用いることが可能となる。As described above, the tire 1 of the present invention does not change the rubber composition inside the tire body 2, but has an outer surface S of 0.
Since it is coated with a thin layer 113 having a thickness L in the range of 1 to 2.0 am, it does not reduce the linear performance of the tire, and therefore the thin layer 3 is a formulation that focuses on improving weather resistance. Conventionally, there have been restrictions on its use as rubber for tire construction. It becomes possible to use rubber 12 containing EPT or butyl halide.
又前記１１１１１３により、前記外表面Ｓ１、Ｓ２を被
覆するため、走行時のくり返し変形に伴う溝底Ｇ１、バ
ットレス部１３の亀裂発生を効果的に抑制しうる。Furthermore, since the outer surfaces S1 and S2 are coated with the 111113, it is possible to effectively suppress the occurrence of cracks in the groove bottom G1 and the buttress portion 13 due to repeated deformation during running.
なお薄層３を形成するゴム１２に顔料等を添加し、タイ
ヤ本体２と彩色を違えることにより、新車における慣ら
し走行終了時期を薄層３が摩耗消滅しタイヤ本体２が露
出するトレッド９の色の変化により知ることができる。By adding a pigment or the like to the rubber 12 that forms the thin layer 3 and making it different in color from the tire body 2, the color of the tread 9 at which the thin layer 3 wears out and the tire body 2 is exposed can be used to determine when the break-in period for a new car ends. This can be determined by the change in
かかる場合、トレッド９での薄層３の厚さ乞を慣らし走
行、例えば１ｏｏｏｈ程度の走行によって摩耗消滅でき
かつ十分な耐亀裂性を保持しうる程度に設定する必要が
あり、本例ではバットレス部１３での薄ＪＷ３の厚さ乞
と異ならせて設定することもできる。In such a case, it is necessary to set the thickness of the thin layer 3 on the tread 9 to such an extent that it can be worn out by a running-in run, for example, about 1 oooh run, and can maintain sufficient crack resistance. It is also possible to set the thickness to be different from the thickness of the thin JW3 in No. 13.
なおｆｌＪＩ３によってタイヤの駆動特性、制動特性等
を損なうおそれのある場合には、例えば第３図（ａ）に
示すようにトレッド９表面の薄層３のみ溝壁部、溝底部
を残して削除することができ、又第３図（ｂ）に示すよ
うに最大車位置ａからトレッド端に至るサイドウオール
７であるバットレス部１３の外表面Ｓ１のみに薄層３を
設けることもできる。In addition, if flJI3 is likely to impair the driving characteristics, braking characteristics, etc. of the tire, for example, as shown in FIG. 3(a), only the thin layer 3 on the surface of the tread 9 is removed, leaving the groove walls and the groove bottom. Alternatively, as shown in FIG. 3(b), the thin layer 3 can be provided only on the outer surface S1 of the buttress portion 13, which is the sidewall 7 extending from the maximum vehicle position a to the tread edge.
又このような薄層３の形成は、押出し機から押出される
ゴム１２からなる薄膜シートを、直接トレッドゴム及び
サイドウオールゴムに貼着し、しかる後これらを用いて
生タイヤを形成する他、予め成形した生タイヤのトレッ
ド９、サイドウオール７に別途薄膜シートを貼付けても
よい。The thin layer 3 can be formed by directly attaching a thin film sheet made of the rubber 12 extruded from an extruder to the tread rubber and sidewall rubber, and then using these to form a green tire. A thin film sheet may be separately attached to the tread 9 and sidewall 7 of a pre-formed green tire.
長さ６０閣、巾１０ｍ、厚さ２Ｍの表面平滑な短冊状を
なしかつ第１表に示す配合成分を有する試験片である実
施測高ｌ、２．３及び比較測高１を試作し、Ｊ Ｉ Ｓ
Ｋ６３０１．１６項記載のオゾン劣化試験を行うと
ともにその試験結果を第１表に示す、なお試験結果は、
オゾン濃度５０Ｐ円１、温度４０°Ｃでの環境下におい
て伸び率１０％の負荷を与え９６時間経過した後の亀裂
の発生状態を指数表示したものであり、該指数表示内容
を第２表に示す。Experimental height measurement 1, 2.3 and comparative height measurement 1, which are test pieces with a smooth surface and a rectangular shape with a length of 60 m, a width of 10 m, and a thickness of 2 m, and having the composition shown in Table 1, were made. JIS
The ozone deterioration test described in Section K6301.16 was conducted and the test results are shown in Table 1.
The state of crack occurrence after 96 hours of applying a load with an elongation rate of 10% in an environment with an ozone concentration of 50P yen 1 and a temperature of 40°C is expressed as an index, and the contents of the index display are shown in Table 2. show.
第１表のごとく、ＥＰＴ及びハロゲン化ブチルを含有し
た本願のゴム１２である実施測高ｌ、２．３は、いずれ
も優れた耐オゾン劣化性を示している。As shown in Table 1, the rubber 12 of the present application containing EPT and butyl halide, measured heights 1 and 2.3, all exhibit excellent ozone deterioration resistance.
叙上のごとく本発明のタイヤは、タイヤ本体の第
表
第
表
外表面をＥＰＴ又はハロゲン化ブチルを所定量含有する
ゴムから°なるＦｊ［により被覆しているため、タイヤ
諸動性能を損ねることなく酸化、劣化に伴う亀裂発生を
効果的に防止しうる。なお本願のタイヤは、ラジアルタ
イヤ、バイヤスタイヤの構造をとわず、すべてのカテゴ
リーのタイヤに適用しろるが、特に乗用車用ラジアルタ
イヤに好適に採用されうる。As mentioned above, since the tire of the present invention coats the outer surface of the tire body with Fj, which is made of rubber containing a predetermined amount of EPT or butyl halide, there is no possibility that the various dynamic performance of the tire will be impaired. It can effectively prevent cracking caused by oxidation and deterioration. The tire of the present invention can be applied to all categories of tires, regardless of the structure of radial tires or bias tires, but can be particularly suitably adopted as radial tires for passenger cars.
第１図は本発明のタイヤの断面図の右半分、第２図はト
レッド溝の拡大断面図、第３図（ａ）〜（ｂ）は本発明
の他の実施例を示す断面図の右半分である。
２・・−タイヤ本体、 ３−薄層、７・・・・
サイドウオール、 ９−・−トレッド、１２・−・
−ゴム、 ａ・−・最大重位置、 ＣＩ・−溝壁、
Ｇ２−・・溝底、 Ｓ、３１、Ｓ２・・−外表面、ｔ
・−厚さ。
特許出願人 住友ゴム工業株式会社代理人 弁理
士 苗 村 正ｓ３図（ｂ）FIG. 1 is the right half of a sectional view of the tire of the present invention, FIG. 2 is an enlarged sectional view of the tread groove, and FIGS. It's half. 2...-tire body, 3-thin layer, 7...
Side wall, 9--tread, 12--
−Rubber, a・−・Maximum weight position, CI・−Groove wall,
G2--Groove bottom, S, 31, S2...-Outer surface, t
・-Thickness. Patent Applicant Sumitomo Rubber Industries Co., Ltd. Agent Patent Attorney Tadashi Naemura Figure s3 (b)
Claims (1)
を５〜７０ｐｈｒ含有するゴムからなる薄層により被覆
してなるタイヤ ２ 前記外表面は、タイヤ本体の最大巾位置間の、サイ
ドウォールの外表面及び溝壁、溝底を含むトレッドの外
表面であることを特徴とする請求項１記載のタイヤ。 ３ 前記外表面はタイヤ本体の最大巾位置からトレッド
端に至るサイドウォールの外表面であることを特徴とす
る請求項１記載のタイヤ。 ４ 前記薄層は、その厚さが０．１〜２．０ｍｍである
ことを特徴とする請求項１記載のタイヤ。[Scope of Claims] 1. A tire in which the outer surface of the tire body is coated with a thin layer of rubber containing 5 to 70 phr of EPT or butyl halide.2. 2. The tire according to claim 1, wherein the tire is an outer surface of a tread including an outer surface of a sidewall, a groove wall, and a groove bottom. 3. The tire according to claim 1, wherein the outer surface is the outer surface of a sidewall extending from the maximum width position of the tire body to the tread edge. 4. The tire according to claim 1, wherein the thin layer has a thickness of 0.1 to 2.0 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63196444A JPH0245202A (en) | 1988-08-06 | 1988-08-06 | Tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63196444A JPH0245202A (en) | 1988-08-06 | 1988-08-06 | Tire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0245202A true JPH0245202A (en) | 1990-02-15 |
Family
ID=16357925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63196444A Pending JPH0245202A (en) | 1988-08-06 | 1988-08-06 | Tire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0245202A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6044882A (en) * | 1995-03-07 | 2000-04-04 | The Goodyear Tire & Rubber Company | Tire having silica reinforced rubber tread with outer cap containing carbon black |
| US6520229B1 (en) * | 1994-12-22 | 2003-02-18 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire having improved static discharge characteristics |
| EP1419904A1 (en) * | 2002-11-14 | 2004-05-19 | Continental Aktiengesellschaft | Pneumatic tyre for two-wheeled vehicle, in particular for bicycle |
| WO2005044593A1 (en) * | 2003-10-30 | 2005-05-19 | Societe De Technologie Michelin | Tread comprising relief elements covered by a specific mixture |
| JP2006062404A (en) * | 2004-08-24 | 2006-03-09 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
| JP2007216829A (en) * | 2006-02-16 | 2007-08-30 | Bridgestone Corp | Tire for construction vehicle, and its manufacturing method |
| JP2009166721A (en) * | 2008-01-17 | 2009-07-30 | Bridgestone Corp | Pneumatic tire |
| JP2015523277A (en) * | 2012-07-31 | 2015-08-13 | ブリヂストン アメリカズ タイヤ オペレイションズ エルエルシー | Tire with laminate |
| JP2017502877A (en) * | 2014-01-16 | 2017-01-26 | ブリヂストン アメリカズ タイヤ オペレーションズ、 エルエルシー | Tire having laminated body and method for producing the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5777207A (en) * | 1980-10-31 | 1982-05-14 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
| JPH01269601A (en) * | 1988-04-20 | 1989-10-27 | Yokohama Rubber Co Ltd:The | Pneumatic type |
-
1988
- 1988-08-06 JP JP63196444A patent/JPH0245202A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5777207A (en) * | 1980-10-31 | 1982-05-14 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
| JPH01269601A (en) * | 1988-04-20 | 1989-10-27 | Yokohama Rubber Co Ltd:The | Pneumatic type |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6520229B1 (en) * | 1994-12-22 | 2003-02-18 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire having improved static discharge characteristics |
| US6044882A (en) * | 1995-03-07 | 2000-04-04 | The Goodyear Tire & Rubber Company | Tire having silica reinforced rubber tread with outer cap containing carbon black |
| EP1419904A1 (en) * | 2002-11-14 | 2004-05-19 | Continental Aktiengesellschaft | Pneumatic tyre for two-wheeled vehicle, in particular for bicycle |
| JP4685791B2 (en) * | 2003-10-30 | 2011-05-18 | ソシエテ ド テクノロジー ミシュラン | Tread with tread pattern elements covered with an unusual mixture |
| JP2007509804A (en) * | 2003-10-30 | 2007-04-19 | ソシエテ ド テクノロジー ミシュラン | Tread with tread pattern elements covered with an unusual mixture |
| WO2005044593A1 (en) * | 2003-10-30 | 2005-05-19 | Societe De Technologie Michelin | Tread comprising relief elements covered by a specific mixture |
| US7987881B2 (en) | 2003-10-30 | 2011-08-02 | Michelin Recherche Et Technique S.A. | Tread comprising relief elements covered by a specific mixture |
| JP2006062404A (en) * | 2004-08-24 | 2006-03-09 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
| JP4501591B2 (en) * | 2004-08-24 | 2010-07-14 | 横浜ゴム株式会社 | Pneumatic tire |
| JP2007216829A (en) * | 2006-02-16 | 2007-08-30 | Bridgestone Corp | Tire for construction vehicle, and its manufacturing method |
| JP2009166721A (en) * | 2008-01-17 | 2009-07-30 | Bridgestone Corp | Pneumatic tire |
| JP2015523277A (en) * | 2012-07-31 | 2015-08-13 | ブリヂストン アメリカズ タイヤ オペレイションズ エルエルシー | Tire with laminate |
| JP2017502877A (en) * | 2014-01-16 | 2017-01-26 | ブリヂストン アメリカズ タイヤ オペレーションズ、 エルエルシー | Tire having laminated body and method for producing the same |
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