JP2018103831A - 空気入りタイヤ - Google Patents
空気入りタイヤ Download PDFInfo
- Publication number
- JP2018103831A JP2018103831A JP2016252664A JP2016252664A JP2018103831A JP 2018103831 A JP2018103831 A JP 2018103831A JP 2016252664 A JP2016252664 A JP 2016252664A JP 2016252664 A JP2016252664 A JP 2016252664A JP 2018103831 A JP2018103831 A JP 2018103831A
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- interface
- cap
- conductive rubber
- conductive
- 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.)
- Granted
Links
- 229920001971 elastomer Polymers 0.000 claims abstract description 138
- 239000005060 rubber Substances 0.000 claims abstract description 138
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 239000011324 bead Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- 239000006229 carbon black Substances 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 3
- 239000012779 reinforcing material Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000005062 Polybutadiene Substances 0.000 description 2
- 229920005549 butyl rubber Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229920003049 isoprene rubber Polymers 0.000 description 2
- 229920002857 polybutadiene Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000012744 reinforcing agent Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920001875 Ebonite Polymers 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Images
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
- B60C19/00—Tyre parts or constructions not otherwise provided for
- B60C19/08—Electric-charge-dissipating arrangements
- B60C19/082—Electric-charge-dissipating arrangements comprising a conductive tread insert
-
- 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
- B60C11/0041—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers
- B60C11/005—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers with cap and base layers
-
- 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
- B60C11/0041—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers
- B60C11/005—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers with cap and base layers
- B60C11/0058—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers with cap and base layers with different cap rubber layers in the axial 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
- B60C11/0008—Tyre tread bands; Tread patterns; Anti-skid inserts characterised by the tread rubber
- B60C2011/0016—Physical properties or dimensions
- B60C2011/0033—Thickness of the tread
-
- 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
- B60C2011/0341—Circumferential grooves
- B60C2011/0355—Circumferential grooves characterised by depth
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
Description
サイズ195/65R15のタイヤを用い、アスファルトまたはコンクリート路面を走行させ、界面セパレーションが発生するまでの距離を測定した。比較例1の結果を100とする指数で表現した。距離が長い(指数が大きい)ほど、耐久性が優れる。試験条件は、空気圧を車両指定とし、荷重は乗員1名あたり55kgとして満員時の荷重とした。磨耗末期は、溝深さがTWI(Tire Wear Indicator)から0.5mmとなるまで磨耗させた状態とした。
図2に示す実施形態を実施例1とした。
図3に示す実施形態を実施例2とした。
図4に示すように、導電ゴム52の周辺において、ベースゴム51とキャップゴム50の界面は水平に延びている。よって、導電ゴム52と主溝5aの中間におけるベースゴム51の厚みG2と、界面端P1におけるベースゴム51の厚みG1とは、共に1.5mmで等しい。その他は、実施例1と同じである。
図5に示すように、導電ゴム52からタイヤ幅方向WDに所定距離L1離れた部位P2と、界面端P1との間にある界面は、部位P2よりも径方向外側RD1に上がっている。所定距離L1は1.5mmであり、部位P2でのベースゴム51の厚みG1は1.5mmであり、界面端P1でのベースゴム51の厚みG2は2.0mmである。
51…ベースゴム
52…導電ゴム
P1…界面端
RD2…タイヤ径方向内側
E…接地面
Claims (3)
- 非導電性ゴムで形成され且つ接地面を構成するキャップゴムと、前記キャップゴムのタイヤ径方向内側に設けられるベースゴムと、前記キャップゴムの厚み方向に延びて前記キャップゴムの内部を通り接地面から前記ベースゴムの底面に至る導電ゴムと、を有し、
前記キャップゴムと前記ベースゴムとの間の界面のうち前記導電ゴムに接する界面端は、前記界面端の周囲にある界面よりも径方向内側に下がっている、空気入りタイヤ。 - 前記導電ゴムからタイヤ幅方向に所定距離離れた部位と、前記界面端との間にある前記界面は、前記部位よりも径方向内側に下がっており、
前記所定距離は、前記導電ゴムの幅W以上である、請求項1に記載の空気入りタイヤ。 - 前記導電ゴムからタイヤ幅方向に所定距離離れた部位と、前記界面端との間にある前記界面は、前記部位よりも径方向内側に下がっており、
前記所定距離は、5.0mm以下1.5mm以上である、請求項1又は2に記載の空気入りタイヤ。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016252664A JP6842298B2 (ja) | 2016-12-27 | 2016-12-27 | 空気入りタイヤ |
US15/786,779 US20180178594A1 (en) | 2016-12-27 | 2017-10-18 | Pneumatic tire |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016252664A JP6842298B2 (ja) | 2016-12-27 | 2016-12-27 | 空気入りタイヤ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018103831A true JP2018103831A (ja) | 2018-07-05 |
JP6842298B2 JP6842298B2 (ja) | 2021-03-17 |
Family
ID=62625758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016252664A Active JP6842298B2 (ja) | 2016-12-27 | 2016-12-27 | 空気入りタイヤ |
Country Status (2)
Country | Link |
---|---|
US (1) | US20180178594A1 (ja) |
JP (1) | JP6842298B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11279181B2 (en) * | 2016-09-02 | 2022-03-22 | The Yokohama Rubber Co., Ltd. | Pneumatic tire |
WO2018043058A1 (ja) * | 2016-09-02 | 2018-03-08 | 横浜ゴム株式会社 | 空気入りタイヤ |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11129713A (ja) * | 1997-10-31 | 1999-05-18 | Bridgestone Corp | 空気入りタイヤ |
WO2018043058A1 (ja) * | 2016-09-02 | 2018-03-08 | 横浜ゴム株式会社 | 空気入りタイヤ |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5997673A (en) * | 1997-09-04 | 1999-12-07 | The Goodyear Tire & Rubber Company | Tire tread compounds comprising partially crosslinked natural rubber |
US8413697B2 (en) * | 2011-08-31 | 2013-04-09 | The Goodyear Tire & Rubber Company | Pneumatic tire having a dual layer tread |
US9283817B2 (en) * | 2011-11-22 | 2016-03-15 | The Goodyear Tire & Rubber Company | Stiffness enhanced tread |
JP6623735B2 (ja) * | 2015-12-14 | 2019-12-25 | 住友ゴム工業株式会社 | 重荷重用空気入りタイヤ |
US11279181B2 (en) * | 2016-09-02 | 2022-03-22 | The Yokohama Rubber Co., Ltd. | Pneumatic tire |
DE102016217970A1 (de) * | 2016-09-20 | 2018-03-22 | Continental Reifen Deutschland Gmbh | Fahrzeugluftreifen |
-
2016
- 2016-12-27 JP JP2016252664A patent/JP6842298B2/ja active Active
-
2017
- 2017-10-18 US US15/786,779 patent/US20180178594A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11129713A (ja) * | 1997-10-31 | 1999-05-18 | Bridgestone Corp | 空気入りタイヤ |
WO2018043058A1 (ja) * | 2016-09-02 | 2018-03-08 | 横浜ゴム株式会社 | 空気入りタイヤ |
Also Published As
Publication number | Publication date |
---|---|
US20180178594A1 (en) | 2018-06-28 |
JP6842298B2 (ja) | 2021-03-17 |
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