WO2010055684A1 - ゴム物品補強用スチールコードおよび空気入りタイヤ - Google Patents
ゴム物品補強用スチールコードおよび空気入りタイヤ Download PDFInfo
- Publication number
- WO2010055684A1 WO2010055684A1 PCT/JP2009/006100 JP2009006100W WO2010055684A1 WO 2010055684 A1 WO2010055684 A1 WO 2010055684A1 JP 2009006100 W JP2009006100 W JP 2009006100W WO 2010055684 A1 WO2010055684 A1 WO 2010055684A1
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- WIPO (PCT)
- Prior art keywords
- strand
- sheath
- cord
- steel cord
- strands
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
- D07B1/0606—Reinforcing cords for rubber or plastic articles
- D07B1/0613—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the rope configuration
-
- 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
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/0007—Reinforcements made of metallic elements, e.g. cords, yarns, filaments or fibres made from metal
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
- D07B1/0606—Reinforcing cords for rubber or plastic articles
- D07B1/062—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration
- D07B1/0626—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration the reinforcing cords consisting of three core wires or filaments and at least one layer of outer wires or filaments, i.e. a 3+N configuration
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
- D07B1/0606—Reinforcing cords for rubber or plastic articles
- D07B1/062—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration
- D07B1/0633—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration having a multiple-layer configuration
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/10—Rope or cable structures
- D07B2201/1012—Rope or cable structures characterised by their internal structure
- D07B2201/102—Rope or cable structures characterised by their internal structure including a core
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/10—Rope or cable structures
- D07B2201/104—Rope or cable structures twisted
- D07B2201/1044—Rope or cable structures twisted characterised by a value or range of the pitch parameter given
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2015—Strands
- D07B2201/202—Strands characterised by a value or range of the dimension given
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2015—Strands
- D07B2201/2023—Strands with core
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2015—Strands
- D07B2201/2024—Strands twisted
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2047—Cores
- D07B2201/2051—Cores characterised by a value or range of the dimension given
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2047—Cores
- D07B2201/2052—Cores characterised by their structure
- D07B2201/2059—Cores characterised by their structure comprising wires
- D07B2201/2061—Cores characterised by their structure comprising wires resulting in a twisted structure
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2095—Auxiliary components, e.g. electric conductors or light guides
- D07B2201/2097—Binding wires
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2205/00—Rope or cable materials
- D07B2205/30—Inorganic materials
- D07B2205/3021—Metals
- D07B2205/3025—Steel
- D07B2205/3046—Steel characterised by the carbon content
- D07B2205/3057—Steel characterised by the carbon content having a high carbon content, e.g. greater than 0,8 percent respectively SHT or UHT wires
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2501/00—Application field
- D07B2501/20—Application field related to ropes or cables
- D07B2501/2046—Tire cords
Definitions
- the present invention relates to a steel cord for reinforcing rubber articles and a pneumatic tire (hereinafter also simply referred to as “tire”), and more specifically, is suitably applied to a heavy load tire mounted on a heavy vehicle such as a transport vehicle or a construction machine.
- the present invention relates to a steel cord for reinforcing rubber articles and the heavy load tire.
- Construction vehicle tires are installed in large-scale dump trucks used in large-scale civil engineering construction sites and ore mining sites, and are subjected to severe operating conditions under heavy loads on rough surfaces.
- construction vehicle tires whose mission is to run on rough terrain have a large input from the road surface and are inherently loaded, so the steel cords used for each reinforcement layer such as carcass and belt have high tensile strength. (Cutting load) is required.
- these reinforcing layers are formed by twisting several sheath strands obtained by twisting a plurality of strands around one core strand obtained by twisting a plurality of strands.
- Steel cords having a so-called double twist structure such as a structure and a 7 ⁇ (3 + 9 + 15) structure are widely used.
- construction vehicle tires are often subjected to trauma as a result of a heavy load imposed on the rough ground surface, whereas the cord used as a reinforcing material has a large diameter or unit area.
- Corresponding to increase the tensile breaking strength in the axial direction of the cord such as applying a so-called high strength steel to increase the tensile strength at break of the cord.
- Patent Document 1 proposes a means for avoiding a partial breakage of a part of the strands and suppressing a decrease in strength in the cord axis direction.
- Patent Document 2 proposes a steel cord having a double twist structure that realizes an improvement in cut resistance against a tire without increasing the weight and thickness.
- Patent Document 3 proposes a steel cord having a double twist structure in which cut resistance to a tire is improved without reducing the strength in the cord axial direction.
- the code was broken prior to input.
- a relatively sharp protrusion is stepped on, on the other hand, it is often bent locally, and the shearing force from the protrusion often causes cord breakage more than the belt reinforcement layer closest to the tread side. It was. For this reason, steel cords applied as reinforcements to construction vehicle tires are required to have both tensile strength in the axial direction of the cord and strength in the shear direction.
- the belt cord on the inner side is located outside the bend when it is bent by stepping on the protrusions, so that it is easy to enter the tensile input leading to the cutting elongation. Thinning is required.
- an object of the present invention is to step on blunt and sharp protrusions without decreasing the strength in the cord axis direction and without increasing the radial thickness, that is, without increasing the tire weight.
- Steel cords for reinforcing rubber articles that can improve the durability against cuts such as cuts and perforations, so-called cut resistance, and tires that use the steel cords for reinforcing rubber articles as reinforcements, especially construction
- the object is to provide a tire for a vehicle.
- the present inventor has conducted intensive studies on the tightening force of the sheath strand against the core strand in a steel cord having a multi-strand structure in which a plurality of sheath strands are twisted around one core strand. As a result, the present invention has been completed.
- the steel cord for reinforcing rubber articles of the present invention is formed by twisting a plurality of sheath strands obtained by twisting a plurality of strands around one core strand obtained by twisting a plurality of strands.
- the core strand preferably has a three-layer twisted structure in which a plurality of strands are twisted, and the number of the sheath strands is preferably 7 to 10. .
- the cord diameter cd is preferably 5.0 mm or more.
- the pneumatic tire of the present invention has a carcass made of a ply with a radial arrangement cord extending in a toroid shape extending between a pair of left and right bead portions as a skeleton, and a belt disposed on the outer side in the tire radial direction of the crown region of the carcass
- the belt is composed of at least four belt layers in which cords arranged in juxtaposition are arranged so as to cross each other, and the cord constituting at least two layers of the belt layer is for reinforcing the rubber article of the present invention. It is a steel cord.
- the cut resistance against cuts and perforations is improved when a dull and sharp protrusion is stepped on without reducing the strength in the cord axis direction and without increasing the tire weight. Can be achieved.
- the present invention is particularly useful for construction vehicle tires.
- FIG. 1 is a cross-sectional view of a steel cord of Example 1.
- FIG. It is sectional drawing of the steel cord of Example 2. It is sectional drawing of the steel cord of the prior art example 1.
- FIG. 6 is a cross-sectional view of a steel cord of Example 3.
- FIG. It is sectional drawing of the tire for construction vehicles of an example of this invention.
- FIG. 1 In the steel cord of the preferred example of the present invention shown in FIG. 1, six sheath strands 2 are twisted around one core strand 1. A wrapping wire 3 is spirally wound around the outer periphery of the cord along the outer periphery of the cord.
- the core strand 1 is formed by twisting a plurality of strands, and has a 3 + 9 + 15 twisted structure in the illustrated example.
- the sheath strand 2 is also formed by twisting a plurality of strands, and has a 3 + 9 + 15 twisted structure in the illustrated example.
- FIG. 2 shows the relationship between the force F that one sheath strand 2 fastens to the core strand 1, the center-to-center distance r between the core strand 1 and the sheath strand 2, and the cross-sectional area S of the sheath strand.
- a twist pitch sp of 2 is shown.
- the tightening force F is proportional to the cross-sectional area S of the sheath strand and cos 2 ⁇ related to the twist angle ⁇ , and on the other hand, is in a relationship inversely proportional to the center distance r and the contact area between the core strand 1 and the sheath strand 2. is there.
- this contact area can be approximated as the sum ( ⁇ 1 + ⁇ 2) of the strand diameter ⁇ 1 of the outermost layer of the core strand 1 and the strand diameter ⁇ 2 of the outermost layer of the sheath strand 2.
- the tightening force F represented by these relationships is expressed by the following equation: 1.8 ⁇ [(S ⁇ cos 2 ⁇ ) / ⁇ r ⁇ ( ⁇ 1 + ⁇ 2) ⁇ ] ⁇ 100 ⁇ 4.2
- each sheath strand 2 before the steel cord breaks when the steel cord receives a shear input.
- the stress due to tightening toward the core strand 1 is increased, and some of the strands are preliminarily broken before the cord breaks. As a result, it is difficult to obtain a necessary shear resistance.
- the sheath strand 2 when the value of [(S ⁇ cos 2 ⁇ ) / ⁇ r ⁇ ( ⁇ 1 + ⁇ 2) ⁇ ] ⁇ 100 is smaller than 1.8, the sheath strand 2 must be made extremely long pitch, which causes a manufacturing problem.
- the strands constituting the sheath strand 2 are extremely narrower than the strands constituting the core strand 1, and the strands of the sheath strand 2 are preliminarily broken before the cord breaks. It becomes difficult to obtain shearing properties.
- FIG. 3 shows another preferred steel cord of the present invention.
- the core strand 1 has a three-layer twisted structure of 3 + 9 + 15.
- the seven sheath strands 2 twisted around the core strand 1 also have a 3 + 9 + 15 three-layer twist structure.
- FIG. 4 further shows a steel cord of another preferred embodiment of the present invention.
- the core strand 1 has a three-layer twisted structure of 3 + 9 + 15.
- the eight sheath strands 2 twisted around the core strand 1 have a 3 + 9 two-layer twist structure.
- both the wire diameter and the twisted structure of the core strand 1 and the sheath strand 2 are not particularly limited.
- the core strand is preferably 3
- the layer strand structure and the sheath strand have a two-layer twist structure.
- the number of sheath strands 2 wound around the core strand 1 is preferably 7 to 10. When the number is 6 or less, it is difficult to obtain sufficient tensile strength with respect to the cord cross-sectional area. On the other hand, when the number of windings of the sheath strand 2 is 11 or more, the filament diameter constituting the core strand becomes extremely thick, so that the bending rigidity of the steel cord is increased, and when applied to rubber articles such as tires, As a result, the surface strain increases and it becomes difficult to obtain sufficient fatigue resistance.
- the present invention in order to ensure the strength of the rubber article, it is preferable to use a high tensile strength steel having a carbon content of 0.80 to 1.00% by mass for the wire used. Further, in order to suppress twisting of the cord and ensure factory workability, it is preferable to wrap the wrapping element wire 3 around the outer periphery of the cord.
- the strands constituting each strand preferably have a strand diameter in the range of 0.20 to 0.60 mm. If the diameter of each strand is less than 0.20 mm, sufficient tensile strength as a steel cord cannot be obtained. On the other hand, if it exceeds 0.60 mm, when the cord is applied to a tire, This is not preferable because the surface strain of the strands of the steel cord increases and the fatigue resistance decreases.
- the cord diameter cd is preferably 5.0 mm or more in order to obtain a desired cord strength.
- a construction vehicle tire shown in FIG. 7 can be preferably cited.
- This construction vehicle tire has a carcass 21 made of a steel cord ply extending in a radial direction between a pair of bead cores 20 and at least four layers (in the illustrated example) arranged on the outer side of the crown portion of the carcass 21 in the tire radial direction. 6-layer) belt 22 and a tread 23 disposed outside the belt 22 in the tire radial direction.
- the cord constituting at least two layers of the belt layer is the steel cord for reinforcing rubber articles of the present invention.
- Examples 1 to 3 Conventional Examples 1 and 2
- Various steel cords shown in Table 1 below were produced.
- 3 to 6 show cross-sectional structures perpendicular to the cord axis of these steel cords.
- 3 corresponds to the first embodiment
- FIG. 4 corresponds to the second embodiment
- FIG. 5 corresponds to the first conventional example
- FIG. 6 corresponds to the third embodiment.
- the strand used for the steel cord is a high strength steel having a carbon content of 0.82% by mass. The following evaluation tests were conducted on these steel cords.
- the test steel cord was evaluated for shear fracture resistance using a Charpy impact tester.
- the steel cord of Conventional Example 1 is indicated as 100, and the index is displayed. The higher the number, the better the result.
- test steel cord was applied as a reinforcing material to the belt layer of a 53R63 construction vehicle tire under the same conditions, and the weight was measured.
- the tire of Conventional Example 1 is shown as an index with 100 as the index. The smaller the number, the better the result.
- the test steel cord was applied as a reinforcing material to the belt layer of a tire for a construction vehicle having a size of 53R63. Each tire was designed so that the weight of the steel cord was equal. Each tire is assembled in a standard rim of JATMA standard and mounted on a construction vehicle. After running for 1000 hours at an average vehicle speed of 40 km / h, each tire is applied to each layer to which a steel cord is applied in a portion corresponding to 1/5 in the circumferential direction. The number of cuts reached was counted. The obtained results are also shown in Table 1 below.
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- Mechanical Engineering (AREA)
- Tires In General (AREA)
- Ropes Or Cables (AREA)
Abstract
Description
前記コアストランドの最外層の素線径φ1(mm)と、前記シースストランドの最外層の素線径φ2(mm)と、前記コアストランドと前記シースストランドの中心間距離r(mm)と、前記シースストランドの断面積S(mm2)と、次式、
α(rad)=(π/2)-tan-1[{(cd-sd)/sp}π]
(式中、cdはコード径(mm)、sdはシースストランド径(mm)、spはシースストランドピッチ(mm)を示す)で表される前記シースストランドの撚り角αと、が次式、
1.8≦[(S・cos2α)/{r・(φ1+φ2)}]×100≦4.2
で表される関係を満足することを特徴とするものである。
前記ベルトが、並置配列されたコードを積層間で交差させて配置してなる少なくとも4層のベルト層からなり、該ベルト層の少なくとも2層を構成するコードが、前記本発明のゴム物品補強用スチールコードであることを特徴とするものである。
図1に示す本発明の好適例のスチールコードでは、1本のコアストランド1の周りに、6本のシースストランド2が撚り合わさっている。また、このコードの外周にはラッピング素線3がコード外周に沿って螺旋状に巻回されている。
1.8≦[(S・cos2α)/{r・(φ1+φ2)}]×100≦4.2
好ましくは、次式、
2.0≦[(S・cos2α)/{r・(φ1+φ2)}]×100≦4.0
で表される関係を満足することが肝要である。
(実施例1~3、従来例1,2)
下記の表1に示す種々のスチールコードを製作した。これらスチールコードのコード軸に直交する断面構造について図3~6に夫々示す。図3は実施例1、図4は実施例2、図5は従来例1、図6は実施例3に夫々対応する。尚、スチールコードに使用した素線は炭素含有量0.82質量%の高抗張力鋼である。これらのスチールコードにつき以下の評価試験を行った
供試スチールコードについてシャルピー衝撃試験機を用い、耐せん断破壊性を評価した。従来例1のスチールコードを100として指数表示した。数値が大なる程、結果が良好である。
供試スチールコードをサイズを同じ条件下で53R63の建設車両用タイヤのベルト層に補強材として適用し、重量測定を行った。従来例1のタイヤを100として指数表示した。数値が小なる程、結果が良好である。
供試スチールコードをサイズを53R63の建設車両用タイヤのベルト層に補強材として適用した。なお、各タイヤはスチールコードの重量が同等となるように設計した。各タイヤを、JATMA規格の標準リムに組み込み建設車両に装着して平均車両速度40km/hで1000時間走行後に、各タイヤの周方向の1/5相当の部分において、スチールコードを適用した各層に達したカット個数を数えた。
得られた結果を下記の表1に併記する。
2 シースストランド
3 ラッピング素線
20 ビードコア
21 カーカス
22 ベルト
23 トレッド
Claims (4)
- 複数本の素線を撚り合わせた1本のコアストランドの周りに、複数本の素線を撚り合わせた複数本のシースストランドを撚り合わせてなり、かつ、前記コアストランドと前記シースストランドが夫々コア素線とシース素線とを撚り合わせた少なくとも2層撚り構造からなる複撚り構造のゴム物品補強用スチールコードにおいて、
前記コアストランドの最外層の素線径φ1(mm)と、前記シースストランドの最外層の素線径φ2(mm)と、前記コアストランドと前記シースストランドの中心間距離r(mm)と、前記シースストランドの断面積S(mm2)と、次式、
α(rad)=(π/2)-tan-1[{(cd-sd)/sp}π]
(式中、cdはコード径(mm)、sdはシースストランド径(mm)、spはシースストランドピッチ(mm)を示す)で表される前記シースストランドの撚り角αと、が次式、
1.8≦[(S・cos2α)/{r・(φ1+φ2)}]×100≦4.2
で表される関係を満足することを特徴とするゴム物品補強用スチールコード。 - 前記コアストランドが複数本の素線を撚り合わせた3層撚り構造を有し、かつ、前記シースストランドの本数が7~10本である請求項1記載のゴム物品補強用スチールコード。
- 前記コード径cdが5.0mm以上である請求項1のゴム物品補強用スチールコード。
- 左右一対のビード部間に跨ってトロイド状に延びるラジアル配列コードによるプライから成るカーカスを骨格とし、該カーカスのクラウン領域のタイヤ径方向外側に配置されたベルトを有する空気入りタイヤにおいて、
前記ベルトが、並置配列されたコードを積層間で交差させて配置してなる少なくとも4層のベルト層からなり、該ベルト層の少なくとも2層を構成するコードが、請求項1記載のゴム物品補強用スチールコードであることを特徴とする空気入りタイヤ。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0922025-9A BRPI0922025B1 (pt) | 2008-11-14 | 2009-11-13 | Cordão de aço para reforçar um artigo de borracha e pneumático |
EP09825937.7A EP2374928B1 (en) | 2008-11-14 | 2009-11-13 | Steel cord for reinforcement of rubber material and pneumatic tire |
US13/127,925 US8601782B2 (en) | 2008-11-14 | 2009-11-13 | Steel cord for reinforcing rubber article and pneumatic tire |
ES09825937.7T ES2607110T3 (es) | 2008-11-14 | 2009-11-13 | Cable de acero para refuerzo de material de caucho y cubierta de neumático |
CN2009801452643A CN102216519B (zh) | 2008-11-14 | 2009-11-13 | 橡胶物品加强用钢丝帘线及充气轮胎 |
AU2009315092A AU2009315092B2 (en) | 2008-11-14 | 2009-11-13 | Steel cord for reinforcement of rubber material and pneumatic tire |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008-292733 | 2008-11-14 | ||
JP2008292733A JP5847990B2 (ja) | 2008-11-14 | 2008-11-14 | ゴム物品補強用スチールコードおよび空気入りタイヤ |
Publications (1)
Publication Number | Publication Date |
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WO2010055684A1 true WO2010055684A1 (ja) | 2010-05-20 |
Family
ID=42169829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2009/006100 WO2010055684A1 (ja) | 2008-11-14 | 2009-11-13 | ゴム物品補強用スチールコードおよび空気入りタイヤ |
Country Status (8)
Country | Link |
---|---|
US (1) | US8601782B2 (ja) |
EP (1) | EP2374928B1 (ja) |
JP (1) | JP5847990B2 (ja) |
CN (1) | CN102216519B (ja) |
AU (1) | AU2009315092B2 (ja) |
BR (1) | BRPI0922025B1 (ja) |
ES (1) | ES2607110T3 (ja) |
WO (1) | WO2010055684A1 (ja) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5430952B2 (ja) * | 2009-01-19 | 2014-03-05 | 株式会社ブリヂストン | ゴム物品補強用スチールコードおよび空気入りタイヤ |
FR2947574B1 (fr) * | 2009-07-03 | 2012-11-09 | Michelin Soc Tech | Cable multitorons dont les torons elementaires sont des cables a deux couches gommes in situ. |
FR2947575B1 (fr) * | 2009-07-03 | 2011-08-19 | Michelin Soc Tech | Cable multitorons dont les torons elementaires sont des cables a deux couches gommes in situ. |
FR2991964B1 (fr) * | 2012-06-14 | 2014-12-12 | Decathlon Sa | Dispositif antivol a lien souple |
JP6063768B2 (ja) * | 2013-02-21 | 2017-01-18 | 住友ゴム工業株式会社 | スチールコード及びそれを用いた弾性クローラ |
JP6352668B2 (ja) * | 2014-04-03 | 2018-07-04 | 株式会社ブリヂストン | ゴム物品補強用スチールコード |
CN103911893B (zh) * | 2014-04-14 | 2017-02-15 | 江苏法尔胜技术开发中心有限公司 | 一种输送带用钢丝绳 |
US10895037B2 (en) | 2014-07-28 | 2021-01-19 | Bridgestone Corporation | Steel cord for reinforcing rubber article |
US10906353B2 (en) * | 2014-07-28 | 2021-02-02 | Bridgestone Corporation | Steel cord for reinforcing rubber article |
FR3060616A1 (fr) | 2016-12-20 | 2018-06-22 | Compagnie Generale Des Etablissements Michelin | Cable multi-torons a deux couches a penetrabilite amelioree |
FR3060617A1 (fr) | 2016-12-20 | 2018-06-22 | Compagnie Generale Des Etablissements Michelin | Cable multi-torons a deux couches a penetrabilite amelioree |
JP6865273B2 (ja) * | 2017-04-28 | 2021-04-28 | 株式会社ブリヂストン | ゴム物品補強用スチールコード、その製造方法及びタイヤ |
JP6936059B2 (ja) | 2017-06-30 | 2021-09-15 | 株式会社ブリヂストン | ゴム物品補強用スチールコード |
JP7308834B2 (ja) * | 2017-12-19 | 2023-07-14 | コンパニー ゼネラール デ エタブリッスマン ミシュラン | 超低、低、及び中程度の弾性率を有する2層マルチストランドコード |
JP7330191B2 (ja) * | 2017-12-19 | 2023-08-21 | コンパニー ゼネラール デ エタブリッスマン ミシュラン | 超低、低、及び中程度の弾性率を有する2層マルチストランドコード |
CN111684127A (zh) * | 2017-12-19 | 2020-09-18 | 米其林集团总公司 | 具有极低、低和中等的模量的双层多线股帘线 |
JP7419644B2 (ja) * | 2019-04-24 | 2024-01-23 | 栃木住友電工株式会社 | ベルト積層体、タイヤ |
JP7417039B2 (ja) * | 2019-09-26 | 2024-01-18 | 横浜ゴム株式会社 | スチールコードおよびその製造方法 |
CN112359621A (zh) * | 2020-11-17 | 2021-02-12 | 江苏兴达钢帘线股份有限公司 | 一种工程胎用钢丝帘线 |
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2008
- 2008-11-14 JP JP2008292733A patent/JP5847990B2/ja not_active Expired - Fee Related
-
2009
- 2009-11-13 AU AU2009315092A patent/AU2009315092B2/en not_active Ceased
- 2009-11-13 EP EP09825937.7A patent/EP2374928B1/en active Active
- 2009-11-13 BR BRPI0922025-9A patent/BRPI0922025B1/pt not_active IP Right Cessation
- 2009-11-13 US US13/127,925 patent/US8601782B2/en active Active
- 2009-11-13 CN CN2009801452643A patent/CN102216519B/zh not_active Expired - Fee Related
- 2009-11-13 ES ES09825937.7T patent/ES2607110T3/es active Active
- 2009-11-13 WO PCT/JP2009/006100 patent/WO2010055684A1/ja active Application Filing
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WO2001034900A1 (fr) | 1999-11-11 | 2001-05-17 | Bridgestone Corporation | Cable d'acier de renforcement d'un article en caoutchouc et pneumatique correspondant |
JP2002339277A (ja) | 2001-05-11 | 2002-11-27 | Bridgestone Corp | ゴム物品補強用スチールコード及びタイヤ |
JP2006022440A (ja) | 2004-07-08 | 2006-01-26 | Bridgestone Corp | ゴム物品補強用スチールコードおよびタイヤ |
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See also references of EP2374928A4 |
Also Published As
Publication number | Publication date |
---|---|
AU2009315092A2 (en) | 2011-07-07 |
CN102216519B (zh) | 2013-10-02 |
JP5847990B2 (ja) | 2016-01-27 |
BRPI0922025B1 (pt) | 2019-05-07 |
JP2010116655A (ja) | 2010-05-27 |
US8601782B2 (en) | 2013-12-10 |
AU2009315092B2 (en) | 2014-04-03 |
EP2374928B1 (en) | 2016-09-28 |
AU2009315092A1 (en) | 2011-07-07 |
CN102216519A (zh) | 2011-10-12 |
EP2374928A1 (en) | 2011-10-12 |
BRPI0922025A2 (pt) | 2018-06-05 |
ES2607110T3 (es) | 2017-03-29 |
EP2374928A4 (en) | 2014-05-07 |
US20110209808A1 (en) | 2011-09-01 |
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