WO2011033778A1 - 空気入りラジアルタイヤ - Google Patents
空気入りラジアルタイヤ Download PDFInfo
- Publication number
- WO2011033778A1 WO2011033778A1 PCT/JP2010/005662 JP2010005662W WO2011033778A1 WO 2011033778 A1 WO2011033778 A1 WO 2011033778A1 JP 2010005662 W JP2010005662 W JP 2010005662W WO 2011033778 A1 WO2011033778 A1 WO 2011033778A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- outer end
- carcass
- rubber
- tire
- radially outer
- Prior art date
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Classifications
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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
- B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
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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
- B60C15/0009—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion
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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
- B60C15/0009—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion
- B60C15/0027—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion with low ply turn-up, i.e. folded around the bead core and terminating at the bead core
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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
- 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
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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
- 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
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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
- B60C15/0009—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion
- B60C2015/009—Height of the carcass terminal portion defined in terms of a numerical value or ratio in proportion to section height
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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
- 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
- B60C2015/061—Dimensions of the bead filler in terms of numerical values or ratio in proportion to section height
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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
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T152/00—Resilient tires and wheels
- Y10T152/10—Tires, resilient
- Y10T152/10495—Pneumatic tire or inner tube
- Y10T152/10819—Characterized by the structure of the bead portion of the tire
- Y10T152/10828—Chafer or sealing strips
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T152/00—Resilient tires and wheels
- Y10T152/10—Tires, resilient
- Y10T152/10495—Pneumatic tire or inner tube
- Y10T152/10819—Characterized by the structure of the bead portion of the tire
- Y10T152/10837—Bead characterized by the radial extent of apex, flipper or chafer into tire sidewall
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T152/00—Resilient tires and wheels
- Y10T152/10—Tires, resilient
- Y10T152/10495—Pneumatic tire or inner tube
- Y10T152/10819—Characterized by the structure of the bead portion of the tire
- Y10T152/10846—Bead characterized by the chemical composition and or physical properties of elastomers or the like
Definitions
- the present invention proposes a technique for improving the pinch cut resistance without increasing the weight of the pneumatic radial tire, in particular, the tire.
- An object of the present invention is to provide a pneumatic radial tire in which the pinch cut resistance of the tire is improved without increasing the weight of the tire.
- a pneumatic radial tire according to the present invention includes a tread portion, a pair of sidewall portions, a pair of bead portions, a main body portion extending in a toroid shape between bead cores in the bead portion, and a folded back around the bead core.
- the carcass ply includes a carcass ply including a carcass ply having a portion, and the thickness of the carcass ply is gradually reduced toward the outer side in the radial direction of the bead core with the rubber chafer in the contact area of the applied rim of the bead portion.
- the carcass has a bead filler having a substantially triangular cross-sectional shape and side rubber along the outer surface of the carcass in the side wall, and is assembled to the applicable rim and filled with a specified air pressure.
- the rim flange of the applicable rim is set to the radial height between the radially outer end of the folded portion and the radially outer end of the bead filler.
- the radial height of the rubber chafer is positioned radially inward from the radially outer end, and the radial height of the rubber chafer is positioned radially outward from the radial outer end of the rim flange. It is characterized in that at least a part of the side rubber is sandwiched and disposed between the rubber chafer and the carcass, radially outward from the radially outer end of the rim flange.
- the state where it is assembled to the applicable rim and filled with the specified air pressure is an industrial standard effective in the area where the tire is produced and used, and in Japan it is JATMA (Japan Automobile Tire Association) YEAR BOOK, In Europe, ETRTO (European Tire and Rim Technical Organization) STANDARDDS MANUAL, in the United States, TRA (THE TIRE and RIM ASSOCIATION INC.) YEAR is specified in the tire according to the size specified in the tires according to the size of the tire. It shall mean the state filled with the highest air pressure.
- a squeegee rubber is disposed between the carcass main body portion and the turned-up portion, and more preferably, the radial height of the radially outer end of the squeegee rubber is set to be outside of the rim flange in the radial direction. Located radially outward from the end.
- the side rubber positioned between the rubber chafer and the carcass turn-up portion is in the range of 1/3 to 1/2 of the 100% modulus of the rubber chafer.
- 100% modulus means that a JIS dumbbell-shaped No. 3 sample was prepared and measured by performing a tensile test at a speed of 500 ⁇ 25 mm / min at room temperature in accordance with JIS K6251. Tensile stress.
- the radial height of the radially outer end of the carcass turn-up portion is located radially inward within a range of ⁇ 10 to +10 mm from the radially outer end of the rim flange, and is radially outside the bead filler.
- the radial height of the radial end is located radially inward within a range of ⁇ 15 to 0 mm from the radial outer end of the rim flange, and the radial outer end of the rubber chafer is set to the radius of the carcass turn-up portion.
- the radius outer edge of the squeegee rubber is in the range of -15 to + 15mm from the radially outer edge of the rim flange. It is preferable to be located outward in the direction.
- the pneumatic radial tire of the present invention has a radial height between the radially outer end of the carcass folded portion and the radially outer end of the bead filler in a state in which the pneumatic tire is assembled to an applicable rim and filled with a specified air pressure.
- the tire weight can be reduced without reducing the riding comfort and the carcass strength by being positioned radially inward from the radially outer end of the rim flange of the applied rim.
- the contact surface between the tire and the rim flange can be reduced. Rim rubbing wear can be prevented.
- FIG. 5 is an enlarged cross-sectional view of a main part showing in more detail a part of a bead portion in a state in which another embodiment of the pneumatic radial tire of the present invention is assembled to an applicable rim and filled with a prescribed air pressure.
- tire width direction sectional drawing which shows a mode that pinch cut generate
- It is a principal part expanded sectional view which shows a part of bead part of the conventional tire. It is a principal part expanded sectional view which shows a part of bead part of the conventional tire.
- FIG. 1 is a cross-sectional view in the tire width direction of a pneumatic radial tire according to an embodiment of the present invention assembled to an applicable rim and filled with a prescribed air pressure
- FIG. 2 is a part of the bead portion of FIG. It is a principal part expanded sectional view which shows these in detail.
- 1 is a tread portion
- 2 is a pair of side wall portions extending radially inward continuously to the respective side portions of the tread portion 1
- 3 is continuously inward in the radial direction of the sidewall portion 2.
- the carcass extends in a toroid shape between a pair of bead portions 3 and a bead core 4 having a circular cross section embedded in each bead portion 3, and each side portion is It consists of one carcass ply having a folded portion 6 that is folded from the inside in the radial direction to the outside around the bead core 4.
- the carcass ply can be formed of, for example, a steel cord or an organic fiber cord extending in a direction orthogonal to the tire circumferential direction.
- the bead part 3 includes a rubber chafer 7 and a carcass main body in the vicinity of the bead heel from the bead base in the contact area of the applied rim of the bead part at the outer side in the tire width direction of the folded part 6 around the bead core 4 of the carcass.
- a bead filler 8 having a substantially triangular cross-sectional shape that gradually decreases in thickness toward the outside in the radial direction of the bead core 4, and a squeegee rubber 9 at the outside of the bead filler 8 in the radial direction.
- the radial height of the radially outer end of the squeegee rubber 9 is positioned radially outward from the radially outer end of the rim flange Rf.
- a belt 10 composed of two cord crossing belt layers, a single belt reinforcing layer 11 and a tread rubber 12 are sequentially arranged.
- a plurality of circumferential grooves and the like extending in the tire circumferential direction are formed on the surface.
- the sidewall portion 2 and the bead portion 3 are covered with a side rubber 13 disposed along the outer surface of the carcass in the tire width direction outside.
- the radial height of the radially outer end 6a of the carcass turning portion 6 is preferably ⁇ 10 to +10 mm from the radially outer end r of the rim flange Rf of the applicable rim R.
- Radial inward at length c, the radial height of the radially outer end 8a of the bead filler 8 is preferably ⁇ 15 to 0 mm from the radially outer end r of the rim flange Rf of the applied rim R.
- the radial height of the rubber chafer 7 is radially inward at a length b, and the radial height of the radially outer end 7a of the rubber chafer 7 is preferably greater than the radial outer end r of the rim flange Rf, preferably in the radial direction of the carcass folded portion 6. It is located radially outward with a length g from a position 5 mm radially inward from the outer end 6a to the maximum width position of the tire, more preferably from the maximum contact area of the rim flange Rf on the outer surface of the tire.
- the “maximum contact area of the rim flange” refers to an area where the outer surface of the tire and the rim flange come into contact when the tire is bent and deformed. Further, at least a part of the side rubber 13 is sandwiched and disposed between the rubber chafer 7 and the carcass folded-back portion 6, and in the drawing, the radially inner end of the side rubber 13 is more than the radially outer end r of the rim flange Rf. Located radially inward.
- FIG. 3 is an enlarged cross-sectional view of a main part showing in more detail a part of a bead portion in a state where another embodiment of the pneumatic radial tire of the present invention is assembled to an applicable rim and filled with a prescribed air pressure.
- symbol is attached
- the region of the rubber chafer 17 from the radially outer end r of the rim flange Rf to the radial length g where the radially outer end 17a is located is inward from the tire outer surface position in the tire width direction. And is sandwiched and disposed between the side rubbers 13.
- a squeegee rubber 9 is disposed between the carcass main body 5 and the turn-up portion 6, thereby concentrating strain generated between the carcass main-body portion 5 and the turn-up portion 6 and a rigidity step. Can be reduced. Further, since the side rubber 13 and the squeegee rubber 9 are adjacent to each other outward in the radial direction of the carcass folding portion 6, separation at the end of the carcass folding portion 6 can be prevented.
- the radial height of the radially outer end of the squeegee rubber 9 is preferably -15 to +15 mm from the end 6a of the carcass folded portion 6 and the radially outer end r of the rim flange Rf.
- the distortion between the carcass body portion 5 and the turn-up portion 6 is reduced, and the hardness of the carcass turn-up portion 6 inside and outside in the tire width direction is caused.
- the rigidity of the carcass can be ensured while reducing the occurrence of distortion. As a result, separation and pinch cuts at the end of the carcass folding portion 6 can be prevented.
- the side rubber 13 positioned between the rubber chafer 7 and the carcass folding portion 6 is in the range of 1/3 to 1/2 of the 100% modulus of the rubber chafer 7, more preferably squeegee rubber.
- the 100% modulus of 9 is set to the same level as the 100% modulus of the side rubber 13. By setting it as this range, the stress concentration to the carcass sandwiched between the curbstone and the rim flange Rf can be reduced.
- the 100% modulus of the side rubber 13 is less than 1/3, the rigidity of the side rubber 13 is lowered, and when the carcass is caught between the applied rim and the curb or the like, the rubber chafer 7 and the carcass folded portion The relaxation of the stress concentration generated by the contact of 6 is reduced. On the other hand, when the stress concentration exceeds 1/2, the strain concentration tends not to be dispersed.
- the end portion of the folded portion 6 of the carcass may be sandwiched in the radially inner region of the side rubber 13, and in this case, the side rubber can be disposed within the range of the side rubber 13 and the squeegee rubber in the figure.
- the radial height of the radially outer end 8a of the carcass turn-up portion 6 is positioned radially inward within a range of ⁇ 10 to +10 mm from the radially outer end r of the rim flange Rf.
- the weight of the tire can be reduced by reducing the amount of rubber in the bead portion.
- the bead portion is configured such that the radial height of the radially outer end 8a of the bead filler 8 is located radially inward within a range of ⁇ 15 to 0 mm from the radially outer end r of the rim flange Rf.
- the weight of the tire can be reduced.
- the radially outer end 7a of the rubber chafer 7 is bent and deformed by being positioned from the position 5mm radially inward from the radially outer end 6a of the carcass folded portion 6 to the maximum tire width position. Since the rubber chafer 7 having hard rubber is not disposed at the position of the maximum tire width where the tire is large, it is possible to prevent a reduction in tire riding comfort.
- the radial outer end 7a of the rubber chafer 7 is positioned up to the maximum contact area of the rim flange Rf on the outer surface of the tire, so that the radial outer end 7a that is likely to be distorted, and the carcass folding portion 6 is prevented from overlapping with the radially outer end 6a in the tire width direction, the concentration of strain can be suppressed, and rubber segregation in the vicinity of the radially outer end 6a of the carcass folded portion 6 can be prevented. Can do.
- the radially outer end of the squeegee rubber 9 is positioned radially outward in the range of ⁇ 15 to +15 mm from the radially outer end r of the rim flange Rf, and in particular, the end of the carcass folding portion 6. It is possible to prevent the occurrence of separation in
- tires having a structure as shown in the figure and having a size of 175 / 70R14 were prototyped, and as shown in Table 1, Example tires and comparative tires 1 and 2 in which the respective specifications were changed. The tire weight, riding comfort and anti-pinch cut performance were evaluated. In addition, since the comparative example tire does not require modification with respect to the structure other than the bead portion, it was assumed to conform to the example tire.
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- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
Description
図1は、本発明の空気入りラジアルタイヤの一の実施形態を、適用リムに組み付けて規定の空気圧を充填した状態のタイヤ幅方向断面図であり、図2は図1のビード部の一部をより詳細に示す要部拡大断面図である。
ここで、カーカスプライは、例えば、タイヤ周方向と直交する方向に延びるスチールコード、有機繊維コード等にて形成することができる。
ここで、「リムフランジの最大接触域」とは、タイヤが屈曲変形した際に、タイヤ外表面とリムフランジが接触する領域をいうものとする。
また、サイドゴム13の少なくとも一部を、ゴムチェーファー7とカーカスの折返し部6との間に挟み込み配置し、図ではサイドゴム13の半径方向内方端をリムフランジRfの半径方向外方端rより半径方向内方に位置させる。
なお、先の図2に示したタイヤと同様の要素には同一の符号を付し、その説明を省略する。
この実施形態では、ゴムチェーファー17の、リムフランジRfの半径方向外方端rから半径方向外方端17aが位置する半径方向長さgまでの領域を、タイヤ外表面位置からタイヤ幅方向内側に折り曲げてサイドゴム13の間に挟み込み配置する。
また、サイドゴム13とスキージゴム9がカーカスの折返し部6の半径方向外方で隣接することで、カーカスの折返し部6の端部でのセパレーションを防ぐことができる。
この範囲とすることで、縁石とリムフランジRfとの間に挟み込まれるカーカスへの応力集中を緩和することができる。
サイドゴム13の半径方向内方領域で、カーカスの折返し部6の端部を挟み込む形態とすることもでき、この場合には、サイドゴムを図のサイドゴム13とスキージゴムの範囲に配置することができる。
より好ましくは、ゴムチェーファー7の半径方向外方端7aを、タイヤ外表面のリムフランジRfの最大接触域までに位置させることで、歪の生じやすい半径方向外方端7aと、カーカス折返し部6の半径方向外方端6aとがタイヤ幅方向に重なり配置することがなく、歪の集中を抑えることができ、カーカス折返し部6の半径方向外方端6a付近のゴムのセバレーションを防ぐことができる。
なお、比較例タイヤは、ビード部以外の構造については改変を要しないため、実施例タイヤに順ずるものとした。
実施例タイヤおよび、比較例タイヤ1,2とのそれぞれにつき、適用リムに組み付けることなく、タイヤ重量を測定し、その評価結果を表2に示す。
なお、表中の指数値は、比較例タイヤ1の値をコントロールとして求めたものであり、数値が大きいほど、タイヤ重量が重いことを示す。
実施例タイヤ、比較例タイヤ1,2のそれぞれにつき、サイズ14-5.5Jのリムに組み付け、内圧210kPaとして、車に装着し、テストコースを、ドライバーが、乗心地性をフィーリングで評価し、その結果を表2に示す。
なお、表中の指数値は、比較例タイヤ1の値をコントロールとして求めたものであり、数値が大きいほど、乗心地が良いことを示す。
実施例タイヤ、比較例タイヤ1,2のそれぞれにつき、サイズ14-5.5Jのリムに組み付け、内圧150kPa、負荷質量をドライバー+60kgとし、速度を50~80m/hで速度を変化させて走行し、路面に設置した60mmの突起を乗り越えたときにピンチカットが発生する速度を指数評価し、その結果を表2に示す。
なお、表中の指数値は、比較例タイヤ1の値をコントロールとして求めたものであり、数値が大きいほど、耐ピンチカット性能が良いことを示す。
2 サイドウォール部
3 ビード部
4 ビードコア
5 カーカスの本体部
6 カーカスの折返し部
6a 半径方向外方端
7,17 ゴムチェーファー
7a,17a 半径方向外方端
8 ビードフィラー
8a 半径方向外方端
9 スキージゴム
10 ベルト
11 ベルト補強層
12 トレッドゴム
13 サイドゴム
R 適用リム
Rf リムフランジ
r 半径方向外方端
Claims (5)
- トレッド部と、一対のサイドウォール部と、一対のビード部と、ビード部内のビードコア間にトロイド状に延在する本体部および、ビードコアの周りに折り返した折返し部を持つカーカスプライを含む複数のカーカスプライからなるカーカスとを具え、このカーカスプライの、ビード部の適用リムの接触域にゴムチェーファーと、ビードコアの半径方向外方に向けて厚みを漸減する略三角形の横断面形状のビードフィラーと、サイドウォール部のカーカスの外表面に沿ってサイドゴムとを有してなる空気入りラジアルタイヤにおいて、
適用リムに組み付けて規定の空気圧を充填した状態の、カーカスの折返し部の半径方向外方端と、ビードフィラーの半径方向外方端との半径方向高さを、適用リムのリムフランジの半径方向外方端より半径方内方に位置させるとともに、ゴムチェーファーの半径方向外方端の半径方向高さを、前記リムフランジの半径方向外方端より半径方向外方に位置させ、
前記リムフランジの半径方向外方端より半径方向外方で、ゴムチェーファーとカーカスとの間に、少なくとも一部のサイドゴムを挟み込み配置してなることを特徴とする空気入りラジアルタイヤ。 - カーカスの本体部と折返し部との間にスキージゴムを配置してなる請求項1に記載の空気入りラジアルタイヤ。
- スキージゴムの半径方向外方端の半径方向高さを、前記リムフランジの半径方向外方端より半径方向外方に位置してなる請求項1または2に記載の空気入りラジアルタイヤ。
- ゴムチェーファーとカーカスの折返し部との間に位置するサイドゴムは、ゴムチェーファーの100%モジュラスの1/3~1/2の範囲としてなる請求項1~3のいずれかに記載の空気入りラジアルタイヤ。
- カーカスの折返し部の半径方向外方端の半径方向高さを、前記リムフランジの半径方向外方端より-10~+10mmの範囲で半径方向内方に位置し、
ビードフィラーの半径方向外方端の半径方向高さを、前記リムフランジの半径方向外方端より-15~0mmの範囲で半径方向内方に位置し、
ゴムチェーファーの半径方向外方端を、カーカス折返し部の半径方向外方端より5mm半径方向内方の位置から、タイヤの最大幅位置までに位置し、
スキージゴムの半径方向外方端を前記リムフランジの半径方向外方端より-15~+15mmの範囲で半径方向外方に位置させてなる請求項1~4のいずれかに記載の空気入りラジアルタイヤ。
Priority Applications (4)
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CN201080044840.8A CN102574431B (zh) | 2009-09-16 | 2010-09-16 | 充气子午线轮胎 |
JP2011531794A JP5643209B2 (ja) | 2009-09-16 | 2010-09-16 | 空気入りラジアルタイヤ |
US13/496,432 US8939185B2 (en) | 2009-09-16 | 2010-09-16 | Pneumatic radial tire |
EP10816892.3A EP2465710B1 (en) | 2009-09-16 | 2010-09-16 | Air-filled radial tire |
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JP2009-214632 | 2009-09-16 | ||
JP2009214632 | 2009-09-16 |
Publications (1)
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WO2011033778A1 true WO2011033778A1 (ja) | 2011-03-24 |
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PCT/JP2010/005662 WO2011033778A1 (ja) | 2009-09-16 | 2010-09-16 | 空気入りラジアルタイヤ |
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US (1) | US8939185B2 (ja) |
EP (1) | EP2465710B1 (ja) |
JP (1) | JP5643209B2 (ja) |
CN (1) | CN102574431B (ja) |
WO (1) | WO2011033778A1 (ja) |
Cited By (6)
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JP2013141963A (ja) * | 2012-01-12 | 2013-07-22 | Bridgestone Corp | 空気入りタイヤ |
JP2014083994A (ja) * | 2012-10-24 | 2014-05-12 | Bridgestone Corp | 空気入りタイヤ |
JP2014172565A (ja) * | 2013-03-12 | 2014-09-22 | Bridgestone Corp | タイヤ |
CN104114382A (zh) * | 2012-03-14 | 2014-10-22 | 株式会社普利司通 | 轮胎 |
EP2623342A3 (de) * | 2012-02-03 | 2014-12-17 | Continental Reifen Deutschland GmbH | Fahrzeugluftreifen mit einem Reifenwulst mit einem Kern und einem Kernprofil |
WO2022045078A1 (ja) * | 2020-08-28 | 2022-03-03 | 住友ゴム工業株式会社 | 空気入りタイヤ |
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JP2016107937A (ja) * | 2014-12-10 | 2016-06-20 | 株式会社ブリヂストン | 建設車両用タイヤ |
FR3053931B1 (fr) * | 2016-07-13 | 2018-07-13 | Compagnie Generale Des Etablissements Michelin | Pneumatique dont la zone du bourrelet est allegee |
JP6772766B2 (ja) * | 2016-11-09 | 2020-10-21 | 住友ゴム工業株式会社 | 空気入りタイヤ |
WO2019026435A1 (ja) * | 2017-07-31 | 2019-02-07 | 株式会社ブリヂストン | 空気入りタイヤ |
CN108189622A (zh) * | 2018-01-22 | 2018-06-22 | 四川远星橡胶有限责任公司 | 实现零气压行驶的真空轮胎 |
JP7219184B2 (ja) * | 2019-07-25 | 2023-02-07 | 株式会社ブリヂストン | タイヤ・ホイール組立体及びタイヤ |
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JP2013141963A (ja) * | 2012-01-12 | 2013-07-22 | Bridgestone Corp | 空気入りタイヤ |
EP2623342A3 (de) * | 2012-02-03 | 2014-12-17 | Continental Reifen Deutschland GmbH | Fahrzeugluftreifen mit einem Reifenwulst mit einem Kern und einem Kernprofil |
CN104114382A (zh) * | 2012-03-14 | 2014-10-22 | 株式会社普利司通 | 轮胎 |
EP2826643A4 (en) * | 2012-03-14 | 2015-07-08 | Bridgestone Corp | TIRES |
JPWO2013137340A1 (ja) * | 2012-03-14 | 2015-08-03 | 株式会社ブリヂストン | タイヤ |
CN104114382B (zh) * | 2012-03-14 | 2016-05-11 | 株式会社普利司通 | 轮胎 |
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Also Published As
Publication number | Publication date |
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JPWO2011033778A1 (ja) | 2013-02-07 |
EP2465710A4 (en) | 2013-01-02 |
EP2465710B1 (en) | 2014-06-25 |
JP5643209B2 (ja) | 2014-12-17 |
US8939185B2 (en) | 2015-01-27 |
EP2465710A1 (en) | 2012-06-20 |
CN102574431B (zh) | 2015-07-01 |
US20120168052A1 (en) | 2012-07-05 |
CN102574431A (zh) | 2012-07-11 |
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