JP2021024484A - タイヤ - Google Patents
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- JP2021024484A JP2021024484A JP2019145647A JP2019145647A JP2021024484A JP 2021024484 A JP2021024484 A JP 2021024484A JP 2019145647 A JP2019145647 A JP 2019145647A JP 2019145647 A JP2019145647 A JP 2019145647A JP 2021024484 A JP2021024484 A JP 2021024484A
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- curved surface
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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
-
- 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
- B60C11/01—Shape of the shoulders between tread and sidewall, e.g. rounded, stepped or cantilevered
-
- 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
- B60C11/0306—Patterns comprising block rows or discontinuous ribs
-
- 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
- B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
- B60C11/1259—Depth of the sipe
-
- 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
- B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
- B60C11/1272—Width of the sipe
-
- 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
- B60C11/1315—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove walls having variable inclination angles, e.g. warped groove walls
-
- 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
- B60C11/1323—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove walls asymmetric
-
- 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
- B60C11/04—Tread patterns in which the raised area of the pattern consists only of continuous circumferential ribs, e.g. zig-zag
-
- 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
- B60C11/01—Shape of the shoulders between tread and sidewall, e.g. rounded, stepped or cantilevered
- B60C2011/013—Shape of the shoulders between tread and sidewall, e.g. rounded, stepped or cantilevered provided with a recessed portion
-
- 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
- B60C2011/0348—Narrow grooves, i.e. having a width of less than 4 mm
-
- 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
- B60C2011/0351—Shallow grooves, i.e. having a depth of less than 50% of other grooves
-
- 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
- B60C2011/0353—Circumferential grooves characterised by width
-
- 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
-
- 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
- B60C2011/0386—Continuous ribs
- B60C2011/0397—Sacrificial ribs, i.e. ribs recessed from outer tread contour
-
- 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
- B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
- B60C11/1204—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special shape of the sipe
- B60C2011/1209—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special shape of the sipe straight at the tread surface
-
- 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
- B60C2200/00—Tyres specially adapted for particular applications
- B60C2200/06—Tyres specially adapted for particular applications for heavy duty vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
Description
図1は、本発明の一実施形態を示すタイヤ1のトレッド部2の展開図である。図2は、図1のA−A線断面図である。本発明は、例えば、乗用車用、自動二輪車用等の空気入りタイヤの他、空気が充填されない非空気式タイヤなど、様々なカテゴリーのタイヤ1に用いることができる。本実施形態のタイヤ1は、重荷重用の空気入りタイヤとして構成されている。
タイヤサイズ:295/75R22.5
リム:22.5×8.25
内圧:760kPa
ドライバーが、各試供タイヤをリム組みして下記車両の全輪に装着し、アスファルト路面のテストコースを20000km走行させた。走行後、ショルダー陸部の内側部の踏面、及び、縦細溝の溝底がテスターの目視によって確認された。耐偏摩耗性能については、前記踏面の偏摩耗状態、耐溝底クラック性能については、前記溝底のクラックの状態がテスターの官能で評価された。結果は、比較例1の値を100とした評点で示される。数値の大きいほうが良好である。
車両:10tトラック、荷台中央に標準積載量の100%の荷物を積載
速度:80km/h
2 トレッド部
3 ショルダー陸部
8 縦細溝
9 溝底
10 内側溝壁
11 外側溝壁
12 内側凹曲面
12e 内側凹曲面の外端
13 外側凹曲面
13e 外側凹曲面の外端
Claims (10)
- トレッド部を有するタイヤであって、
前記トレッド部には、トレッド端を含むショルダー陸部が形成され、
前記ショルダー陸部には、タイヤ周方向に延びる縦細溝が設けられ、
前記縦細溝は、最も深い溝底を含み、
前記縦細溝の横断面において、前記縦細溝は、タイヤ赤道側に配される内側溝壁と、前記トレッド端側に配される外側溝壁とを含み、
前記内側溝壁は、前記溝底側でタイヤ軸方向内側に向かって窪む内側凹曲面を含み、
前記外側溝壁は、前記溝底側でタイヤ軸方向外側に向かって窪む外側凹曲面を含み、
前記内側凹曲面のタイヤ半径方向の外端は、前記外側凹曲面のタイヤ半径方向の外端よりもタイヤ半径方向内側に位置する、
タイヤ。 - 前記溝底は、前記縦細溝の溝中心線よりも前記トレッド端側に位置する、請求項1に記載のタイヤ。
- 前記外側溝壁は、前記外側凹曲面を形成する外側円弧状部と、前記外側円弧状部のタイヤ半径方向の外端に連なってタイヤ半径方向外側に延びる外側直線状部とを含む、請求項1又は2に記載のタイヤ。
- 前記溝底は、前記外側直線状部をタイヤ半径方向内側に延長させた仮想線よりも前記トレッド端側に配される、請求項3に記載のタイヤ。
- 前記内側溝壁は、前記内側凹曲面を形成する内側円弧状部と、前記内側円弧状部のタイヤ半径方向の外端に連なってタイヤ半径方向外側に延びる内側直線状部とを含む、請求項1ないし4のいずれかに記載のタイヤ。
- 前記外側溝壁は、前記外側凹曲面のタイヤ半径方向の外端に連なってタイヤ半径方向外側に延びる外側直線状部を含み、
前記内側凹曲面のタイヤ軸方向の内端と前記内側直線状部との間のタイヤ軸方向の長さは、前記外側凹曲面のタイヤ軸方向の外端と前記外側直線状部との間のタイヤ軸方向の長さよりも小さい、請求項5に記載のタイヤ。 - 前記ショルダー陸部は、タイヤ周方向に連続して延びるショルダー主溝と前記トレッド端との間に区分され、かつ、前記縦細溝と前記トレッド端とで区分される外側部と、前記縦細溝と前記ショルダー主溝とで区分される内側部とを含み、
前記外側部の踏面は、前記内側部の踏面よりもタイヤ半径方向の内側に位置する、請求項1ないし6のいずれかに記載のタイヤ。 - 前記縦細溝の溝深さは、前記ショルダー主溝の溝深さの1.5倍以下である、請求項7に記載のタイヤ。
- 前記外側凹曲面のタイヤ軸方向の外端における前記外側部のタイヤ軸方向の長さは、前記外側部の踏面のタイヤ軸方向の長さの1〜1.4倍である、請求項7又は8に記載のタイヤ。
- 前記縦細溝の前記トレッド部の開口端での溝幅は、前記縦細溝の前記溝底側の最大溝幅以下である、請求項1ないし9のいずれかに記載のタイヤ。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019145647A JP7354663B2 (ja) | 2019-08-07 | 2019-08-07 | タイヤ |
US16/945,209 US11654720B2 (en) | 2019-08-07 | 2020-07-31 | Tire |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019145647A JP7354663B2 (ja) | 2019-08-07 | 2019-08-07 | タイヤ |
Publications (2)
Publication Number | Publication Date |
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JP2021024484A true JP2021024484A (ja) | 2021-02-22 |
JP7354663B2 JP7354663B2 (ja) | 2023-10-03 |
Family
ID=74501839
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2019145647A Active JP7354663B2 (ja) | 2019-08-07 | 2019-08-07 | タイヤ |
Country Status (2)
Country | Link |
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US (1) | US11654720B2 (ja) |
JP (1) | JP7354663B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115476624A (zh) * | 2021-06-15 | 2022-12-16 | 库珀轮胎橡胶公司 | 用于轮胎的退耦槽 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7160119B2 (ja) * | 2021-02-05 | 2022-10-25 | 住友ゴム工業株式会社 | 重荷重用タイヤ |
WO2023129161A1 (en) * | 2021-12-30 | 2023-07-06 | Compagnie Generale Des Etablissements Michelin | Heavy truck tire tread with decoupling sipes in the shoulder and sacrificial rib |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1148716A (ja) * | 1997-08-07 | 1999-02-23 | Bridgestone Corp | 空気入りタイヤ |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100507392B1 (ko) * | 1996-12-19 | 2005-08-10 | 미쉐린 러쉐르슈 에 떼크니크 에스.에이. | 희생용 리브를 구비한 내마모성 중형 타이어 |
CN1494489A (zh) | 2001-10-11 | 2004-05-05 | 住友橡胶工业株式会社 | 充气轮胎 |
JP4950491B2 (ja) * | 2005-12-29 | 2012-06-13 | 住友ゴム工業株式会社 | 重荷重用タイヤ |
KR100928550B1 (ko) * | 2007-11-22 | 2009-11-24 | 한국타이어 주식회사 | 트럭/버스용 타이어의 디커플링 홈 구조 |
JP6287299B2 (ja) * | 2014-02-12 | 2018-03-07 | 横浜ゴム株式会社 | 空気入りタイヤ |
JP6885713B2 (ja) * | 2016-11-25 | 2021-06-16 | Toyo Tire株式会社 | 空気入りタイヤ |
JP6907758B2 (ja) * | 2017-06-28 | 2021-07-21 | 住友ゴム工業株式会社 | タイヤ |
-
2019
- 2019-08-07 JP JP2019145647A patent/JP7354663B2/ja active Active
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2020
- 2020-07-31 US US16/945,209 patent/US11654720B2/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1148716A (ja) * | 1997-08-07 | 1999-02-23 | Bridgestone Corp | 空気入りタイヤ |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115476624A (zh) * | 2021-06-15 | 2022-12-16 | 库珀轮胎橡胶公司 | 用于轮胎的退耦槽 |
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US20210039444A1 (en) | 2021-02-11 |
JP7354663B2 (ja) | 2023-10-03 |
US11654720B2 (en) | 2023-05-23 |
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