JP6620552B2 - 空気入りタイヤ - Google Patents
空気入りタイヤ Download PDFInfo
- Publication number
- JP6620552B2 JP6620552B2 JP2015255268A JP2015255268A JP6620552B2 JP 6620552 B2 JP6620552 B2 JP 6620552B2 JP 2015255268 A JP2015255268 A JP 2015255268A JP 2015255268 A JP2015255268 A JP 2015255268A JP 6620552 B2 JP6620552 B2 JP 6620552B2
- Authority
- JP
- Japan
- Prior art keywords
- bead
- tire
- rubber layer
- carcass
- line segment
- 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.)
- Expired - Fee Related
Links
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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/02—Seating or securing beads on rims
- B60C15/0236—Asymmetric bead seats, e.g. different bead diameter or inclination angle
-
- 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
-
- 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
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
- B60C1/0025—Compositions of the sidewalls
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- 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
-
- 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/0009—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion
- B60C15/0081—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion the carcass plies folded around or between more than one bead core
-
- 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/02—Seating or securing beads on rims
- B60C15/024—Bead contour, e.g. lips, grooves, or 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
- B60C15/0603—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead characterised by features of the bead filler or apex
-
- 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
- B60C15/0603—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead characterised by features of the bead filler or apex
- B60C15/0607—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead characterised by features of the bead filler or apex comprising several parts, e.g. made of different rubbers
-
- 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
- B60C15/0628—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead comprising a bead reinforcing layer
-
- 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
- B60C15/0628—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead comprising a bead reinforcing layer
- B60C15/0635—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead comprising a bead reinforcing layer using chippers between the carcass layer and chafer rubber wrapped around the bead
-
- 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
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
- B60C1/0016—Compositions 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
- B60C17/00—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
- B60C17/0009—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor comprising sidewall rubber inserts, e.g. crescent shaped inserts
- B60C17/0036—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor comprising sidewall rubber inserts, e.g. crescent shaped inserts comprising additional reinforcements
-
- 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/02—Seating or securing beads on rims
- B60C15/024—Bead contour, e.g. lips, grooves, or ribs
- B60C2015/0245—Bead lips at the bead toe portion, i.e. the axially and radially inner end of the bead
-
- 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/04—Bead cores
- B60C2015/048—Polygonal cores characterised by the winding sequence
-
- 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
- B60C2015/0614—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead characterised by features of the chafer or clinch portion, i.e. the part of the bead contacting the rim
-
- 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
- B60C2015/0617—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead comprising a cushion rubber other than the chafer or clinch rubber
- B60C2015/0621—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead comprising a cushion rubber other than the chafer or clinch rubber adjacent to the carcass turnup 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
- B60C2015/0617—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead comprising a cushion rubber other than the chafer or clinch rubber
- B60C2015/0625—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead comprising a cushion rubber other than the chafer or clinch rubber provided at the terminal edge portion of a carcass or reinforcing layer
-
- 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
- B60C15/0628—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead comprising a bead reinforcing layer
- B60C2015/0692—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead comprising a bead reinforcing layer characterised by particular materials of the cords
-
- 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
-
- 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
- B60C3/00—Tyres characterised by the transverse section
- B60C3/04—Tyres characterised by the transverse section characterised by the relative dimensions of the section, e.g. low profile
Description
図4は、タイヤ1の性能試験の結果を示す図表である。以下、上記のタイヤ1について、従来例及び比較例のタイヤ1と、本発明に係るタイヤ1とについて行なった性能の評価試験について説明する。性能評価試験は、カーカス折り返し部62を起点としたビード部20のクラックの発生のし難さを示す耐カーカスターンナップセパ性能及びビード部20のバーストの可能性を示すビードバースト可能性について行った。
2 トレッド部
3 トレッド面
4 ショルダー部
5 サイドウォール部
6 カーカス
7 ベルト層
8 インナーライナ
10 陸部
15 周方向主溝
20 ビード部
21 ビードコア
22 内周面
23 外周面
24 角部
25 角部
26 ビードベース部
27 ビードヒール
28 ビードトウ
35 スチールコード補強層
35E 外側エッジ部
40 タイヤ外表面
50 タイヤ内表面
61 カーカス本体部
62 カーカス折り返し部
62E 外側エッジ部
71,72,73,74 ベルト
A 距離
CL タイヤ赤道面
D 第1線分
E 突出点
F 第3線分
G 曲線
H 第1交点
J 第2線分
K ビードゴム層
L 第1補強ゴム層
P 辺
R 第2交点
Claims (2)
- 15[°]テーパーの規定リムに装着される空気入りタイヤであって、
タイヤ赤道面のタイヤ幅方向両側に配設される一対のビード部と、
一対の前記ビード部のそれぞれに設けられるビードコアと、
一対の前記ビードコアに支持され、カーカス本体部及び前記ビードコアで折り返されることにより形成されるカーカス折り返し部を有するカーカスと、
前記ビードコアで折り返された前記カーカスの外面に配置されるスチールコード補強層と、
少なくとも一部が前記カーカス本体部と前記カーカス折り返し部との間に配置されるビードゴム層と、
前記スチールコード補強層のタイヤ径方向外側の外側エッジ部及び前記カーカス折り返し部のタイヤ径方向外側の外側エッジ部に隣接し、タイヤ径方向外側に延在する第1補強ゴム層と、を備え、
前記ビードゴム層は、前記ビードコアに隣接する第2補強ゴム層と、前記第2補強ゴム層に隣接し、前記カーカス本体部と前記第1補強ゴム層との間に配置される緩衝ゴム層と、を有し、
前記規定リムに装着されない状態において、
前記ビードコアの最もタイヤ幅方向外側の突出点を通り前記ビードコアの最長辺と平行な第1線分と、
前記ビード部のうち前記規定リムと接触するビードベース部のビードヒール側の辺と、
前記ビード部のうち前記ビードベース部よりもタイヤ幅方向外側のタイヤ外表面の曲線と、
前記辺と前記曲線との第1交点と、
前記第1交点を通り前記第1線分に垂直な第2線分と、
前記突出点を通り前記第1線分に垂直な第3線分と、が規定され、
前記第2線分と前記第3線分との距離は、4[mm]以上12[mm]以下であり、
前記第1補強ゴム層の複素弾性率は、6[MPa]以上10[MPa]以下であり、
前記第1補強ゴム層の破断伸びは、300[%]以上450[%]以下であり、
前記第2補強ゴム層の複素弾性率は、10[MPa]以上15[MPa]以下であり、
前記緩衝ゴム層の複素弾性率は、2[MPa]以上6[MPa]以下である、
ことを特徴とする空気入りタイヤ。 - 前記第1線分と前記カーカス折り返し部との第2交点は、前記第2補強ゴム層に隣接する、
ことを特徴とする請求項1に記載の空気入りタイヤ。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015255268A JP6620552B2 (ja) | 2015-12-25 | 2015-12-25 | 空気入りタイヤ |
PCT/JP2016/087303 WO2017110636A1 (ja) | 2015-12-25 | 2016-12-14 | 空気入りタイヤ |
CN201680074382.XA CN108473005B (zh) | 2015-12-25 | 2016-12-14 | 充气轮胎 |
DE112016006037.8T DE112016006037T5 (de) | 2015-12-25 | 2016-12-14 | Luftreifen |
US16/065,035 US11207929B2 (en) | 2015-12-25 | 2016-12-14 | Pneumatic tire |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015255268A JP6620552B2 (ja) | 2015-12-25 | 2015-12-25 | 空気入りタイヤ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2017114454A JP2017114454A (ja) | 2017-06-29 |
JP6620552B2 true JP6620552B2 (ja) | 2019-12-18 |
Family
ID=59090231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2015255268A Expired - Fee Related JP6620552B2 (ja) | 2015-12-25 | 2015-12-25 | 空気入りタイヤ |
Country Status (5)
Country | Link |
---|---|
US (1) | US11207929B2 (ja) |
JP (1) | JP6620552B2 (ja) |
CN (1) | CN108473005B (ja) |
DE (1) | DE112016006037T5 (ja) |
WO (1) | WO2017110636A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101781947B1 (ko) | 2016-04-12 | 2017-09-26 | 한국타이어 주식회사 | 비드부를 보강한 튜브리스 타이어 |
JP7115226B2 (ja) * | 2018-11-02 | 2022-08-09 | 横浜ゴム株式会社 | 空気入りタイヤ |
JP7159793B2 (ja) * | 2018-11-02 | 2022-10-25 | 横浜ゴム株式会社 | 空気入りタイヤ |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1065046B (it) * | 1976-12-13 | 1985-02-25 | Pirelli | Cerchietto per tallone di pneumatico tipo tubeless e pneumatico relativo |
JP2855327B2 (ja) | 1987-12-15 | 1999-02-10 | 横浜ゴム株式会社 | 空気入りラジアルタイヤ |
JPH0354007A (ja) * | 1989-07-24 | 1991-03-08 | Yokohama Rubber Co Ltd:The | 重荷重用空気入りラジアルタイヤ |
JPH07102763B2 (ja) * | 1989-12-29 | 1995-11-08 | 住友ゴム工業株式会社 | 空気入りタイヤ |
JP3613653B2 (ja) * | 1996-10-15 | 2005-01-26 | 東洋ゴム工業株式会社 | 重荷重用空気入りラジアルタイヤ |
JP3759302B2 (ja) * | 1997-12-25 | 2006-03-22 | 株式会社ブリヂストン | 空気入りタイヤ |
JP4567180B2 (ja) * | 2000-12-18 | 2010-10-20 | 住友ゴム工業株式会社 | 重荷重用タイヤ |
JP4643868B2 (ja) * | 2001-08-29 | 2011-03-02 | 住友ゴム工業株式会社 | 重荷重用チューブレスタイヤ |
JP4363944B2 (ja) * | 2003-10-03 | 2009-11-11 | 住友ゴム工業株式会社 | 重荷重用空気入りタイヤ |
JP4648728B2 (ja) * | 2005-03-01 | 2011-03-09 | 住友ゴム工業株式会社 | 重荷重用タイヤ |
JP4672410B2 (ja) * | 2005-03-28 | 2011-04-20 | 住友ゴム工業株式会社 | ラジアルタイヤ |
JP4976788B2 (ja) * | 2006-09-04 | 2012-07-18 | 住友ゴム工業株式会社 | 重荷重用タイヤ |
JP4567763B2 (ja) * | 2008-03-25 | 2010-10-20 | 住友ゴム工業株式会社 | 重荷重用タイヤ |
JP5031000B2 (ja) * | 2008-08-20 | 2012-09-19 | 住友ゴム工業株式会社 | チェーファー用ゴム組成物 |
JP5324951B2 (ja) * | 2009-02-05 | 2013-10-23 | 住友ゴム工業株式会社 | 重荷重用空気入りタイヤ |
JP4830028B2 (ja) * | 2009-03-06 | 2011-12-07 | 住友ゴム工業株式会社 | 重荷重用ラジアルタイヤ |
KR101844617B1 (ko) * | 2010-09-08 | 2018-04-02 | 스미토모 고무 고교 가부시키가이샤 | 중하중용 공기 타이어 |
JP2012106531A (ja) * | 2010-11-15 | 2012-06-07 | Sumitomo Rubber Ind Ltd | 重荷重用タイヤ |
-
2015
- 2015-12-25 JP JP2015255268A patent/JP6620552B2/ja not_active Expired - Fee Related
-
2016
- 2016-12-14 WO PCT/JP2016/087303 patent/WO2017110636A1/ja active Application Filing
- 2016-12-14 DE DE112016006037.8T patent/DE112016006037T5/de active Pending
- 2016-12-14 CN CN201680074382.XA patent/CN108473005B/zh active Active
- 2016-12-14 US US16/065,035 patent/US11207929B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
JP2017114454A (ja) | 2017-06-29 |
CN108473005B (zh) | 2020-06-12 |
US20190054777A1 (en) | 2019-02-21 |
DE112016006037T5 (de) | 2018-10-25 |
CN108473005A (zh) | 2018-08-31 |
WO2017110636A1 (ja) | 2017-06-29 |
US11207929B2 (en) | 2021-12-28 |
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