WO2014181660A1 - 空気入りタイヤ - Google Patents
空気入りタイヤ Download PDFInfo
- Publication number
- WO2014181660A1 WO2014181660A1 PCT/JP2014/061017 JP2014061017W WO2014181660A1 WO 2014181660 A1 WO2014181660 A1 WO 2014181660A1 JP 2014061017 W JP2014061017 W JP 2014061017W WO 2014181660 A1 WO2014181660 A1 WO 2014181660A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- inner liner
- pneumatic tire
- region
- tire
- thickness
- Prior art date
Links
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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
- B60C5/00—Inflatable pneumatic tyres or inner tubes
- B60C5/12—Inflatable pneumatic tyres or inner tubes without separate inflatable inserts, e.g. tubeless tyres with transverse section open to the rim
- B60C5/14—Inflatable pneumatic tyres or inner tubes without separate inflatable inserts, e.g. tubeless tyres with transverse section open to the rim with impervious liner or coating on the inner wall of the tyre
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0681—Parts of pneumatic tyres; accessories, auxiliary operations
-
- 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
- B60C1/0008—Compositions of the inner liner
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0681—Parts of pneumatic tyres; accessories, auxiliary operations
- B29D2030/0682—Inner liners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2009/00—Use of rubber derived from conjugated dienes, as moulding material
- B29K2009/06—SB polymers, i.e. butadiene-styrene polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
Definitions
- the present invention relates to a pneumatic tire. More specifically, the present invention relates to a pneumatic tire in which rigidity is lowered by reducing a spring constant of the tire.
- the spring characteristics of tires are related to ride performance and contact length, and are important factors in developing tires.
- the inner liner moves in accordance with the movement of the adjacent member by providing a cut in the inner liner in a specific region where the distortion of the inner liner (air permeation prevention layer) increases.
- An invention has been proposed in which the durability of the inner liner is improved in such a manner (Patent Document 1).
- Patent Document 1 the technical idea of the invention proposed in Patent Document 1 is that a second inner liner is separately provided at a position where a cut is provided (such as paragraph 0019 of Patent Document 1), and the tire spring constant is determined. It is understood that there is no idea of reducing the rigidity or reducing the rigidity, but rather the rigidity becomes higher in that part.
- Patent Document 2 proposes a large number of protrusions or independent protrusions that are thicker than the adjacent part, ensuring a space for air to flow out at the contact interface with the bladder, and the air pool.
- Patent Document 2 proposes a proposal to prevent the occurrence of this.
- the technical idea of the invention proposed in Patent Document 2 is to provide protrusions or protrusions on the surface of a normal inner liner, and in terms of the spring constant and rigidity of the tire, rather than reducing it. On the contrary, it is enlarged and is different from the present invention.
- An object of the present invention is to provide a pneumatic tire having low rigidity by reducing the spring constant of the tire, and in particular, by reducing the spring constant of the tire even after vulcanization molding of the tire.
- An object of the present invention is to provide a pneumatic tire that can be obtained by adjusting the rigidity to be low.
- the pneumatic tire of the present invention that achieves the above-described object has the following configuration (1).
- a pneumatic tire in which a film made of a thermoplastic resin or a thermoplastic resin composition obtained by blending a thermoplastic resin and an elastomer is used as an inner liner, the inner liner located in a region between the left and right bead filler tops
- a pneumatic tire characterized in that it is formed at a portion having a surface area of less than 40% of the total surface area of the inner liner in the region, with the inner liner being thinner than the other portions in the region.
- the pneumatic tire of the present invention preferably has any one of the following configurations (2) to (8).
- (2) The inner liner thickness Gf of the portion formed by reducing the inner liner thickness is 5 to 95% of the inner liner thickness Gs of the other portion in the region.
- (3) The inner liner thickness Gf of the portion formed by reducing the inner liner thickness is 20 to 75% of the inner liner thickness Gs of the other portion in the region.
- the above inner liner wherein the inner liner has a portion formed by making the inner liner thinner than the other portion at least in a region between the belt end and the bead filler top.
- the pneumatic tire according to any one of 1) to (4). (6) A portion having a surface area of less than 30% of the total surface area of the inner liner in the region between the belt end and the bead filler top and having a thinner inner liner than other portions in the region.
- the pneumatic tire according to (5) wherein the pneumatic tire is formed.
- the pneumatic process according to any one of (1) to (6) above, wherein the process of forming the inner liner with a thickness smaller than that of the other part is a process using a laser. tire.
- Any one of the above (1) to (7) characterized in that after the vulcanization molding of the tire, the inner liner is made thinner than the other portions.
- the pneumatic tire of the present invention according to claim 1, it is possible to provide a pneumatic tire having reduced rigidity by reducing the spring constant of the tire, particularly after the tire is vulcanized and molded. It is possible to provide a pneumatic tire that can be obtained by reducing the spring constant and adjusting the rigidity to be low.
- FIG. 1 is a partially broken perspective view for explaining an embodiment of a pneumatic tire according to the present invention.
- FIG. 2 is a sectional view in the tire meridian direction for explaining an example of a pneumatic tire according to the present invention.
- FIG. 3 illustrates a pneumatic tire according to the present invention, and shows various examples of the form of the portion formed by reducing the thickness of the inner liner provided on the surface of the inner liner. It is.
- a film made of a thermoplastic resin or a thermoplastic resin composition obtained by blending a thermoplastic resin and an elastomer is used as an inner liner.
- the inner liner 10 located in the region Za between the left and right bead filler tops 16a is a portion 17 having a surface area of less than 40% of the total surface area of the inner liner 10 in the region. It is characterized in that the inner liner is made thinner than other portions in the region Za.
- the tire T is provided so that the sidewall portion 12 and the bead portion 13 are connected to the left and right of the tread portion 11.
- a carcass layer 14 that is a skeleton of the tire is provided inside the tire so as to straddle the left and right beads 13 in the tire width direction E.
- a bead filler 16 is disposed on the tire outer peripheral side of the bead 13, and the outermost point portion is a bead filler top 16 ⁇ / b> Za.
- the region straddling between the left and right bead filler tops 16a is Za, and the spring constant and rigidity of the tire in this region Za affect characteristics such as riding comfort performance and tire ground contact length.
- the rigidity of the film constituting the inner liner 10 can be reduced, and the isotropic material can be made anisotropic.
- the spring constant of the entire tire can be changed.
- the inner liner 10 in the region Za is thinned only in a surface area of less than 40% of the total surface area of the inner liner 10, thereby
- the rigidity can be controlled without affecting the air leakage prevention performance.
- the air permeation preventing performance may be lowered depending on the absolute value of the thickness. There is not preferable.
- Any of an aspect in which the directions are alternately changed and an aspect in which polygons such as hexagons as shown in (h) are arranged may be used.
- the inner liner thickness Gf of the portion formed by reducing the inner liner thickness is preferably 5 to 95% of the inner liner thickness Gs of the other portion in the region. This is to achieve both the reduction in rigidity and the maintenance of air permeation prevention performance in a well-balanced manner. If the thickness is less than 5% or if it is formed as a through hole, it is difficult to maintain air permeation prevention performance, which is not preferable. On the other hand, if it is thicker than 95%, it is difficult to produce a difference in rigidity from the thick part, and the effect of reducing the tire spring constant as a whole is poor, which is not preferable.
- the inner liner thickness Gf of the portion formed by reducing the inner liner thickness is It is preferably in the range of 20 to 75% of the inner liner thickness Gs of the other part in the region.
- the absolute value of the thickness is preferably in the range of 50 to 250 ⁇ m in order to maintain the air permeation preventing performance as the inner liner. More preferably, it is in the range of 60 to 200 ⁇ m.
- the portion 17 formed by making the inner liner thickness thinner than other portions in the region Za is formed not on the outer edge line of the inner liner 10.
- the peripheral portion may become a starting point of occurrence of cracks or peeling.
- the portion formed by making the inner liner thickness thinner than the other portions is at least in the region Zb between the left and right belt end portions 15e and the bead filler top 16a.
- the presence is preferable in order to obtain the effect of the present invention remarkably.
- the lower part of the belt is inherently very high in rigidity, and even if the inner liner is locally thinned in that part, there is a point that the change in the rigidity of the tire is difficult to occur, and a region Zb between the belt end 15e and the bead filler top 16a. This is because it is most effective to thin the inner liner locally.
- the inner liner thickness is made thinner than other portions in the portion of the surface area less than 30%. It is preferable to form them. This is because the region Zb is a portion where a change in the rigidity of the tire is likely to appear as described above, and using the region portion as a reference leads to higher effects.
- the process of forming the inner liner thinner than the other parts is preferable because it is relatively simple to use a laser after vulcanization molding of the tire.
- processing using a laser is convenient for processing to form a thinner inner liner than other parts after vulcanization molding of the tire, and even for the same tire, a tire spring constant is set for each individual tire. It is convenient when you do.
- laser processing can be performed in a tire width direction on a predetermined surface (surface on the tire lumen side) of a film constituting an inner liner. That is, the thin portion is formed by, for example, a processing method in which the surface of the inner liner (film sheet surface) is moved in the surface direction of the film sheet material while irradiating laser light from the perpendicular direction.
- This processing using laser light is preferable because it is a non-contact method.
- the laser beam irradiation may be performed continuously while being moved, or may be intermittently performed while being moved. In particular, by adjusting the moving speed and intensity of laser light irradiation, the depth of the thinned part (thickness of the inner liner) can be adjusted. Is suitable.
- the laser beam an infrared laser or a CO 2 (carbon dioxide gas) laser is preferably used, and among these, a CO 2 (carbon dioxide gas) laser is preferably used from the viewpoint of good workability and controllability.
- the YAG laser seems to depend on the material of the film sheet material forming the inner liner, but is often inferior to the above in terms of processability and controllability.
- the processing width (line width) of processing by the laser light should be about 0.2 to 1 mm. Is preferred.
- thermoplastic resin examples include polyamide resins [for example, nylon 6 (N6), nylon 66 (N66), nylon 46 (N46), nylon 11 (N11), nylon 12 (N12). , Nylon 610 (N610), nylon 612 (N612), nylon 6/66 copolymer (N6 / 66), nylon 6/66/610 copolymer (N6 / 66/610), nylon MXD6 (MXD6), nylon 6T, nylon 9T, nylon 6 / 6T copolymer, nylon 66 / PP copolymer, nylon 66 / PPS copolymer] and their N-alkoxyalkylated products, such as methoxymethylated products of nylon 6, nylon 6 / 610 copolymer methoxymethylated product, nylon 612 methoxymethylated product, polyester Resin (for example, polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polyethylene isophthalate (PEI), PET
- PET polybutylene ter
- thermoplastic resin and the elastomer constituting the thermoplastic resin composition that can be used in the present invention
- the elastomer include diene rubber and hydrogenated products thereof [for example, natural rubber (NR), isoprene rubber (IR), epoxidized natural rubber, styrene butadiene rubber (SBR), butadiene rubber (BR, high cis BR and Low cis BR), nitrile rubber (NBR), hydrogenated NBR, hydrogenated SBR], olefin rubber [eg, ethylene propylene rubber (EPDM, EPM), maleic acid modified ethylene propylene rubber (M-EPM), butyl rubber (IIR) ), Isobutylene and aromatic vinyl or diene monomer copolymer, acrylic rubber (ACM), ionomer], halogen-containing rubber [for example, Br-IIR, CI-IIR, brominated isobutylene-p-
- Such a compatibilizing agent generally includes a copolymer having a structure of both or one of a thermoplastic resin and an elastomer, or an epoxy group, a carbonyl group, a halogen group, and an amino group that can react with the thermoplastic resin or elastomer.
- a copolymer having a oxazoline group, a hydroxyl group and the like can be taken.
- thermoplastic resin and elastomer may be selected according to the type of thermoplastic resin and elastomer to be blended, but those commonly used include styrene / ethylene butylene block copolymer (SEBS) and its maleic acid modification, EPDM, EPM, EPDM / styrene or EPDM / acrylonitrile graft copolymer and its modified maleic acid, styrene / maleic acid copolymer, reactive phenoxin and the like can be mentioned.
- SEBS styrene / ethylene butylene block copolymer
- the amount of the compatibilizing agent is not particularly limited, but is preferably 0.5 to 10 parts by weight with respect to 100 parts by weight of the polymer component (the total of the thermoplastic resin and the elastomer).
- thermoplastic resin composition in which the thermoplastic resin and the elastomer are blended, the composition ratio of the specific thermoplastic resin and the elastomer is not particularly limited, and the elastomer is used as a discontinuous phase in the thermoplastic resin matrix. What is necessary is just to determine suitably so that it may have a dispersed structure, and a preferable range is 90/10-30/70 weight ratio.
- thermoplastic resin or a thermoplastic resin composition obtained by blending a thermoplastic resin and an elastomer can be mixed with another polymer such as a compatibilizing agent as long as the necessary properties as an inner liner are not impaired.
- a compatibilizing agent such as a compatibilizing agent
- the purpose of mixing other polymers is to improve the compatibility between the thermoplastic resin and the elastomer, to improve the molding processability of the material, to improve the heat resistance, to reduce the cost, etc.
- the material that can be used include polyethylene (PE), polypropylene (PP), polystyrene (PS), ABS, SBS, and polycarbonate (PC).
- the elastomer can be dynamically vulcanized when mixed with the thermoplastic resin.
- the vulcanizing agent, vulcanization aid, vulcanization conditions (temperature, time), etc. in the case of dynamic vulcanization may be appropriately determined according to the composition of the elastomer to be added, and are not particularly limited.
- thermoplastic resin composition has a structure in which an elastomer is dispersed as a discontinuous phase in a matrix of a thermoplastic resin.
- the Young's modulus of the thermoplastic resin and elastomer that can be used in the present invention is not particularly limited, but both are preferably 1 to 500 MPa, more preferably 50 to 500 MPa.
- Air leak test method pressure drop rate
- the sample is left for 3 months under an initial pressure of 200 kPa, a room temperature of 21 ° C. and no load.
- the measurement interval of the internal pressure is every 4 days, and the ⁇ value is obtained by returning to the following equation as the measurement pressure P1, the initial pressure P0, and the elapsed days t.
- P1 / P0 exp ( ⁇ t)
- t 30 (day)
- thermoplastic resin composition constituting the inner liner has a composition as shown in Table 1 and is a film having a thickness of 200 ⁇ m.
- the pneumatic tire according to the present invention was excellent in ride comfort performance and in air leakage resistance.
- Inner liner layer 11 Tread portion 12: Side wall portion 13: Bead 14: Carcass layer 15: Belt layer 15e: Belt end portion 16: Bead filler 16a: Bead filler top 17: A portion T in which the inner liner thickness is reduced : Tire X: Tire circumferential direction E: Tire circumferential direction Za: Area between left and right bead filler tops Zb: Area between belt end 15e and bead filler top 16a
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
Description
更に詳しくは、タイヤが持つバネ定数を小さくすることにより剛性を低くした空気入りタイヤに関する。
(1)熱可塑性樹脂または熱可塑性樹脂とエラストマーをブレンドした熱可塑性樹脂組成物からなるフィルムをインナーライナーに用いた空気入りタイヤにおいて、左右のビードフィラートップ間の領域に位置するインナーライナーが、該領域内のインナーライナーの全表面積の40%未満の表面積の部分で、該領域中の他の部分よりもインナーライナー厚さを薄くして形成されていることを特徴とする空気入りタイヤ。
(2)前記インナーライナー厚さを薄くして形成されている部分のインナーライナー厚さGfが、前記領域中の他の部分のインナーライナー厚さGsの5~95%の厚さであることを特徴とする上記(1)記載の空気入りタイヤ。
(3)前記インナーライナー厚さを薄くして形成されている部分のインナーライナー厚さGfが、前記領域中の他の部分のインナーライナー厚さGsの20~75%の厚さであることを特徴とする上記(1)記載の空気入りタイヤ。
(4)前記領域中の他の部分よりもインナーライナー厚さを薄くして形成されている部分が、該インナーライナーの外縁線にかからずに形成されていることを特徴とする上記(1)~(3)のいずれかに記載の空気入りタイヤ。
(5)前記インナーライナーが、少なくともベルト端部とビードフィラートップの間の領域において、前記他の部分よりもインナーライナー厚さを薄くして形成されてなる部分を有することを特徴とする上記(1)~(4)のいずれかに記載空気入りタイヤ。
(6)前記ベルト端部とビードフィラートップの間の領域内のインナーライナーの全表面積の30%未満の表面積の部分で、該領域中の他の部分よりもインナーライナー厚さを薄くして形成されてなることを特徴とする上記(5)記載の空気入りタイヤ。
(7)前記他の部分よりもインナーライナー厚さを薄くして形成する加工が、レーザーを用いた加工であることを特徴とする上記(1)~(6)のいずれかに記載の空気入りタイヤ。
(8)タイヤの加硫成形後に、前記他の部分よりもインナーライナー厚さを薄くして形成する加工がなされたものであることを特徴とする上記(1)~(7)のいずれかに記載の空気入りタイヤ。
試験タイヤとして、195/65R15を用い、実施例1~6、比較例1ごとに各5本を作製し、これを以下の試験法により評価をした。
初期圧力200kPa、室温21℃、無負荷条件にて3ヶ月放置する。内圧の測定間隔は4日毎とし、測定圧力P1、初期圧力P0、経過日数tとして次の式に回帰してα値を求める。
(P1/P0)=exp(-αt)
得られたαを用い、t=30(日)を代入し、1ヶ月当たりの圧力低下率β(%/月)=(1-exp(-αt))×100を求め、比較例1を100とする指数で表した。この値が大きいほど、空気漏れが少なく優れることを示す。
空気入りタイヤをリムサイズ15×6JJのリムに装着し、空気圧を230kPaにして国産2リットルクラスの試験車両に取り付け、訓練された5名のテストドライバーがテストコースを周回するときの乗り心地性のフィーリングを評点し、その平均地により評価した。得られた結果を、比較例1を100とする指数で表した。この指数値が大きいほど乗り心地性が優れることを示す。
11:トレッド部
12:サイドウォール部
13:ビード
14:カーカス層
15:ベルト層
15e:ベルト端部
16:ビードフィラー
16a:ビードフィラートップ
17:インナーライナー厚さを薄くした部分
T:タイヤ
X:タイヤ周方向
E:タイヤ周方向
Za:左右のビードフィラートップ間の領域
Zb:ベルト端部15eとビードフィラートップ16aの間の領域
Claims (8)
- 熱可塑性樹脂または熱可塑性樹脂とエラストマーをブレンドした熱可塑性樹脂組成物からなるフィルムをインナーライナーに用いた空気入りタイヤにおいて、左右のビードフィラートップ間の領域に位置するインナーライナーが、該領域内のインナーライナーの全表面積の40%未満の表面積の部分で、該領域中の他の部分よりもインナーライナー厚さを薄くして形成されていることを特徴とする空気入りタイヤ。
- 前記インナーライナー厚さを薄くして形成されている部分のインナーライナー厚さGfが、前記領域中の他の部分のインナーライナー厚さGsの5~95%の厚さであることを特徴とする請求項1記載の空気入りタイヤ。
- 前記インナーライナー厚さを薄くして形成されている部分のインナーライナー厚さGfが、前記領域中の他の部分のインナーライナー厚さGsの20~75%の厚さであることを特徴とする請求項1記載の空気入りタイヤ。
- 前記領域中の他の部分よりもインナーライナー厚さを薄くして形成されている部分が、該インナーライナーの外縁線にかからずに形成されていることを特徴とする請求項1~3のいずれかに記載の空気入りタイヤ。
- 前記インナーライナーが、少なくともベルト端部とビードフィラートップの間の領域において、前記他の部分よりもインナーライナー厚さを薄くして形成されてなる部分を有することを特徴とする請求項1~4のいずれかに記載空気入りタイヤ。
- 前記ベルト端部とビードフィラートップの間の領域内のインナーライナーの全表面積の30%未満の表面積の部分で、該領域中の他の部分よりもインナーライナー厚さを薄くして形成されてなることを特徴とする請求項5記載の空気入りタイヤ。
- 前記他の部分よりもインナーライナー厚さを薄くして形成する加工が、レーザーを用いた加工であることを特徴とする請求項1~6のいずれかに記載の空気入りタイヤ。
- タイヤの加硫成形後に、前記他の部分よりもインナーライナー厚さを薄くして形成する加工がなされたものであることを特徴とする請求項1~7のいずれかに記載の空気入りタイヤ。
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CN201480026204.0A CN105209269A (zh) | 2013-05-10 | 2014-04-18 | 充气轮胎 |
DE112014002356.6T DE112014002356T5 (de) | 2013-05-10 | 2014-04-18 | Luftreifen |
US14/890,256 US20160121655A1 (en) | 2013-05-10 | 2014-04-18 | Pneumatic Tire |
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JP2013-100254 | 2013-05-10 | ||
JP2013100254A JP6232738B2 (ja) | 2013-05-10 | 2013-05-10 | 空気入りタイヤ |
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US (1) | US20160121655A1 (ja) |
JP (1) | JP6232738B2 (ja) |
CN (1) | CN105209269A (ja) |
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WO2015030825A1 (en) * | 2013-08-30 | 2015-03-05 | Compagnie Generale Des Etablissements Michelin | Methods for forming a retreaded tire |
KR101893260B1 (ko) * | 2016-10-24 | 2018-10-04 | 한국타이어 주식회사 | 공명음 저감 타이어 및 이의 제조방법 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2010269588A (ja) * | 2009-03-27 | 2010-12-02 | Toyo Tire & Rubber Co Ltd | 空気透過抑制フィルムを備えたゴム製品及びその製造方法 |
JP2012158232A (ja) * | 2011-01-31 | 2012-08-23 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ及びその製造方法 |
JP5143945B1 (ja) * | 2011-11-09 | 2013-02-13 | 住友ゴム工業株式会社 | 空気入りタイヤ |
JP2013049424A (ja) * | 2012-11-26 | 2013-03-14 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ |
JP2013060138A (ja) * | 2011-09-14 | 2013-04-04 | Sumitomo Rubber Ind Ltd | 空気入りタイヤ |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7389802B2 (en) * | 2004-12-30 | 2008-06-24 | The Goodyear Tire & Rubber Co. | Tire with double layer innerliner |
US20090065118A1 (en) * | 2006-04-18 | 2009-03-12 | The Yokohama Rubber Co., Ltd. | Low-permeability rubber laminate and pneumatic tire using the same |
FR2934967B1 (fr) * | 2008-08-14 | 2010-08-13 | Michelin Soc Tech | Pneumatique sans chambre a air ayant une gomme interieure fendue, et procede pour sa fabrication |
JP5277881B2 (ja) * | 2008-11-10 | 2013-08-28 | 横浜ゴム株式会社 | 空気入りタイヤ |
JP5215438B2 (ja) * | 2011-07-28 | 2013-06-19 | 住友ゴム工業株式会社 | 空気入りタイヤ |
-
2013
- 2013-05-10 JP JP2013100254A patent/JP6232738B2/ja not_active Expired - Fee Related
-
2014
- 2014-04-18 WO PCT/JP2014/061017 patent/WO2014181660A1/ja active Application Filing
- 2014-04-18 CN CN201480026204.0A patent/CN105209269A/zh active Pending
- 2014-04-18 US US14/890,256 patent/US20160121655A1/en not_active Abandoned
- 2014-04-18 DE DE112014002356.6T patent/DE112014002356T5/de not_active Ceased
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010269588A (ja) * | 2009-03-27 | 2010-12-02 | Toyo Tire & Rubber Co Ltd | 空気透過抑制フィルムを備えたゴム製品及びその製造方法 |
JP2012158232A (ja) * | 2011-01-31 | 2012-08-23 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ及びその製造方法 |
JP2013060138A (ja) * | 2011-09-14 | 2013-04-04 | Sumitomo Rubber Ind Ltd | 空気入りタイヤ |
JP5143945B1 (ja) * | 2011-11-09 | 2013-02-13 | 住友ゴム工業株式会社 | 空気入りタイヤ |
JP2013049424A (ja) * | 2012-11-26 | 2013-03-14 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ |
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JP2014218218A (ja) | 2014-11-20 |
JP6232738B2 (ja) | 2017-11-22 |
US20160121655A1 (en) | 2016-05-05 |
DE112014002356T5 (de) | 2016-01-21 |
CN105209269A (zh) | 2015-12-30 |
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