EP2855763B1 - Verfahren zur herstellung eines zweischichtigen mehrsträngigen metallseils - Google Patents

Verfahren zur herstellung eines zweischichtigen mehrsträngigen metallseils Download PDF

Info

Publication number
EP2855763B1
EP2855763B1 EP13724817.5A EP13724817A EP2855763B1 EP 2855763 B1 EP2855763 B1 EP 2855763B1 EP 13724817 A EP13724817 A EP 13724817A EP 2855763 B1 EP2855763 B1 EP 2855763B1
Authority
EP
European Patent Office
Prior art keywords
strands
cable
wound
layer
wires
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.)
Not-in-force
Application number
EP13724817.5A
Other languages
English (en)
French (fr)
Other versions
EP2855763A1 (de
Inventor
Henri Barguet
Emmanuel Clement
Thibault RAPENNE
Thibaud Pottier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Generale des Etablissements Michelin SCA
Original Assignee
Compagnie Generale des Etablissements Michelin SCA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Compagnie Generale des Etablissements Michelin SCA filed Critical Compagnie Generale des Etablissements Michelin SCA
Publication of EP2855763A1 publication Critical patent/EP2855763A1/de
Application granted granted Critical
Publication of EP2855763B1 publication Critical patent/EP2855763B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B5/00—Making ropes or cables from special materials or of particular form
    • D07B5/12—Making ropes or cables from special materials or of particular form of low twist or low tension by processes comprising setting or straightening treatments
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
    • D07B7/02—Machine details; Auxiliary devices
    • D07B7/022—Measuring or adjusting the lay or torque in the rope
    • 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
    • D07B1/0646—Reinforcing cords for rubber or plastic articles comprising longitudinally preformed wires
    • 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
    • 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
    • D07B2201/1064—Rope or cable structures twisted characterised by lay direction of the strand compared to the lay direction of the wires in the strand
    • D07B2201/1068—Rope or cable structures twisted characterised by lay direction of the strand compared to the lay direction of the wires in the strand having the same lay direction
    • 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
    • D07B2201/1076—Open winding
    • 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
    • D07B2201/1076—Open winding
    • D07B2201/1084—Different twist pitch
    • 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
    • D07B2201/2025—Strands 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
    • D07B2201/2024—Strands twisted
    • D07B2201/2029—Open winding
    • 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
    • D07B2201/2029—Open winding
    • D07B2201/2031—Different twist pitch
    • D07B2201/2032—Different twist pitch compared with the 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
    • D07B2201/2047—Cores
    • D07B2201/2052—Cores characterised by their structure
    • D07B2201/2059—Cores characterised by their structure comprising wires
    • 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
    • D07B2201/206—Cores characterised by their structure comprising wires arranged parallel to the axis
    • 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
    • D07B2205/00—Rope or cable materials
    • D07B2205/30—Inorganic materials
    • D07B2205/3021—Metals
    • 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
    • D07B2205/3028—Stainless steel
    • 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
    • D07B2205/3035—Pearlite
    • 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
    • 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
    • D07B2205/306—Aluminium (Al)
    • 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
    • D07B2205/3071—Zinc (Zn)
    • 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
    • D07B2205/3085—Alloys, i.e. non ferrous
    • 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
    • D07B2205/3085—Alloys, i.e. non ferrous
    • D07B2205/3089—Brass, i.e. copper (Cu) and zinc (Zn) alloys
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2207/00—Rope or cable making machines
    • D07B2207/40—Machine components
    • D07B2207/4072—Means for mechanically reducing serpentining or mechanically killing of rope
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2401/00—Aspects related to the problem to be solved or advantage
    • D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
    • D07B2401/2005—Elongation or elasticity
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2401/00—Aspects related to the problem to be solved or advantage
    • D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
    • D07B2401/2005—Elongation or elasticity
    • D07B2401/201—Elongation or elasticity regarding structural elongation
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2401/00—Aspects related to the problem to be solved or advantage
    • D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
    • D07B2401/2015—Killing or avoiding twist
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2401/00—Aspects related to the problem to be solved or advantage
    • D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
    • D07B2401/208—Enabling filler penetration
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2401/00—Aspects related to the problem to be solved or advantage
    • D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
    • D07B2401/2085—Adjusting or controlling final twist
    • 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
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S174/00—Electricity: conductors and insulators
    • Y10S174/12—Helical preforms

Definitions

  • the invention relates to a method for manufacturing multi-strand cables that can be used in particular for reinforcing tires, particularly tires for heavy industrial vehicles.
  • a radial carcass reinforcement tire comprises a tread, two inextensible beads, two sidewalls connecting the beads to the tread and a belt, or crown reinforcement, disposed circumferentially between the carcass reinforcement and the tread.
  • This belt comprises several rubber plies, possibly reinforced by reinforcing elements or reinforcements such as cables or monofilaments, metal or textile type.
  • the tire belt generally consists of at least two superimposed belt plies, sometimes called “working” plies or “crossed” plies, whose reinforcing cords, generally of metal, are arranged substantially parallel to each other at the same time. interior of a web, but crossed from one web to another, that is to say inclined, symmetrically or otherwise, with respect to the median circumferential plane, of an angle which is generally between 10 ° and 45 ° depending on the type of tire considered.
  • the crossed plies may be supplemented by various other plies or layers of auxiliary rubber, of varying widths depending on the case, with or without reinforcements.
  • This cable has a structure of the type 4 x (1 + 5) and comprises four strands each comprising an inner layer consisting of a wire and an outer layer consisting of five son wound helically around the wire of the inner layer.
  • This prior art cable has acceptable corrosion resistance and elasticity but a relatively limited breaking force which, although satisfactory for some uses, is not sufficient for particular uses, particularly in the case of cable for heavy industrial vehicle tires.
  • the object of the invention is therefore to provide a multi-strand cable resistant to corrosion and having a high breaking force.
  • the succession of overtopping, balancing and undoing steps applied to the multi-strand cable (K + L) x (2 + N) makes it possible to obtain an aerated cable, that is to say characterized on the one hand by spacing the wires from the axial direction (direction perpendicular to the direction of the axis of the strand) and secondly by spacing the strands from the axial direction (direction perpendicular to the direction of the strand). cable axis).
  • the son constituting the strands and strands constituting the cable are plastically deformed during the overtopping step and therefore have, at the end of the stripping step, an excess of curvature with respect to the initial curvature of the cable prior to the overtopping step.
  • This excess of curvature relatively large, axially spreads the son constituting the strands and strands constituting the cable when the cable is at rest, especially when it is not subjected to a tensile force.
  • This curvature is defined, on the one hand, by the helical diameter of each layer of strands or strands and, on the other hand, by the pitch propeller or the helix angle of each layer of wires or strands (angle measured from the axis of the cable).
  • the cable thus manufactured is of the "HE" type, that is to say with high elasticity, and highly penetrable.
  • the spacing of the son and strands relative to the axis of the strand and the cable respectively allows to promote the passage of the eraser between the son of each strand and between the different strands. The corrosion resistance is thus improved.
  • an unsaturated layer of strands is such that there is enough space in this layer to add at least one (L + 1) th strand of the same diameter as the L strands of the layer, several strands can then be at contact each other. Conversely, this layer is said to be saturated if there is not enough space in this layer to add at least one (L + 1) th strand of the same diameter as the L strands of the layer.
  • the cable has a high resistance to corrosion.
  • the unsaturation of the outer layer of the cable makes it possible to create at least one opening for the gum to pass between two outer strands in order to effectively penetrate the rubber during the vulcanization of the tire.
  • the 2 + N structure of each strand amplifies the passage of the eraser.
  • each strand has an oblong contour envelope which promotes the absence of contact between the adjacent strands and therefore the passage of the eraser.
  • the cable has remarkable properties of resistance.
  • the resistance of a cable can be measured by the value of its breaking force and characterizes its capacity for structural resistance to a force.
  • the multi-strand structure (K + L) x (2 + N) of the cable makes it possible to give the cable excellent mechanical strength, in particular a high breaking force.
  • the structure of the cable makes it possible to manufacture crown plies, for example working or crossed, of protection, having a relatively high linear density. Thus, the resistance of the tire is greatly improved.
  • the protective layers are made more enduring and more resistant to corrosion because of its high penetrability which allows the rubber to protect the cable against corrosive agents and because its high elasticity which allows the cable to deform easily regardless of the coating.
  • the cable in the case where the cable is used in a working or crossed web, thanks to its high mechanical strength, in particular its resistance to compression fatigue, the cable makes it possible to give the tire a high endurance, with respect in particular the phenomenon of separation / cracking of the ends of the crossed plies in the shoulder area of the tire, known as "cleavage".
  • Wire rope means by definition a cable formed of wires constituted mostly (ie for more than 50% of these wires) or completely (for 100% of the wires) of a metallic material.
  • the invention is preferably implemented with a steel cable, more preferably carbonaceous pearlitic (or ferrito-pearlitic) steel, hereinafter referred to as "carbon steel", or else stainless steel (by definition, steel comprising at least one minus 11% chromium and at least 50% iron). But it is of course possible to use other steels or other alloys.
  • carbon steel When carbon steel is used, its carbon content (% by weight of steel) is preferably between 0.4% and 1.2%, especially between 0.5% and 1.1%; these levels represent a good compromise between the mechanical properties required for the tire and the feasibility of the wires. It should be noted that a carbon content of between 0.5% and 0.6% makes such steels ultimately less expensive because easier to draw.
  • Another advantageous embodiment of the invention may also consist, depending on the applications concerned, of using steels with a low carbon content, for example between 0.2% and 0.5%, in particular because of a cost lower and easier to draw.
  • the metal or steel used may itself be coated with a metal layer improving for example the properties of implementation of the wire rope and / or its constituent elements, or the properties of use of the cable and / or the tire themselves, such as adhesion properties, corrosion resistance or resistance to aging.
  • the steel used is covered with a layer of brass (Zn-Cu alloy) or zinc.
  • the coating of brass or zinc facilitates the drawing of the wire, as well as the bonding of the wire with the rubber.
  • the son could be covered with a thin metal layer other than brass or zinc, for example having the function of improving the resistance to corrosion of these son and / or their adhesion to rubber, for example a thin layer of Co, Ni, Al, an alloy of two or more compounds Cu, Zn, Al, Ni, Co, Sn.
  • the K inner strands are wound helically.
  • the outer layer of each strand is unsaturated.
  • an unsaturated layer of wires is such that there is enough space in this layer to add at least one (N + 1) th wire of the same diameter as the N wires of the layer, several wires then being able to contact each other. Conversely, this layer is said to be saturated if there was not enough room in this layer to add at least one (N + 1) th thread of the same diameter as the N son of the layer.
  • the protection of the cable against corrosion is improved for reasons similar to those relating to the unsaturation of the outer layer of the cable.
  • it allows the penetration of the rubber to the central channel defined by the strands of the inner layer of the cable.
  • the eraser penetrates in the middle of each strand and between the strands.
  • the breaking strength of the cable is greater than or equal to 4000 N, preferably 5000 N and more preferably 6000 N.
  • the total elongation at break of the cable is greater than or equal to 4.5%, preferably greater than or equal to 5%. preferentially at 5.5%.
  • the elastic elongation Ae results from the elasticity of the metal of the metal wires, taken individually (Hooke's law).
  • the plastic elongation Ap results from the plasticity (irreversible deformation beyond the elastic limit) of the metal of these metal wires taken individually.
  • the cable has a structural elongation of greater than or equal to 1%, preferably 1.5% and more preferably 2%.
  • the preferred cables are the structural cables (3 + 8) x (2 + 2), (3 + 8) x (2 + 3), (3 + 8) x (2 + 4), (4 + 8) x (2 + 2), (4 + 8) x (2 + 3), (4 + 8) x (2 + 4), (4 + 9) x (2 + 2), (4 + 9) x (2 +3) and (4 + 9) x (2 + 4).
  • the pitch represents the length, measured parallel to the axis of the cable, at the end of which a wire having this pitch performs a complete revolution about said axis of the cable.
  • the outer wires preferably have a shorter pitch than the internal wires.
  • the elasticity of each of the K strands is improved.
  • the inner and outer layers of each of the K inner strands are wound in the same direction of torsion.
  • the winding in the same direction of the inner and outer layers allows to minimize the friction between the two layers and therefore the wear of the son constituting them.
  • the ratio of the pitch on the diameter of the outer wires of each of the L outer strands is between 23 and 33 included terminals.
  • the outer wires preferably have a shorter pitch than the internal wires.
  • the elasticity of each of the L strands is improved.
  • the inner and outer layers of each of the L outer strands are wound in the same direction of torsion.
  • the elasticity and the wear resistance of the cable are thus improved.
  • the outer strands preferably have a greater pitch than that of the inner strands.
  • the inner and outer layers of the cable are wound in the same direction of torsion. This winding makes it possible to minimize the friction between the two layers and therefore the wear of the strands which constitute them.
  • all the son and the strands are wound in the same direction of torsion. This helps promote the elasticity of the cable.
  • the diameters of all the external and internal wires of each strand, whether these strands have an identical diameter or not are between 0.18 mm and 0.40 mm included terminals, preferably between 0.20 mm and 0.32 mm included terminals.
  • the internal and external wires may have an identical diameter or different from one layer to another. Wire of the same diameter is preferably used from one layer to another.
  • the internal wires of each strand are preferably made of steel, more preferably of carbon steel.
  • the outer son of each strand are preferably made of steel, more preferably carbon steel.
  • the cable is particularly intended to be used as a reinforcement element for a tire crown reinforcement intended for industrial vehicles chosen from heavy vehicles such as "heavy goods vehicles” - ie, subway, bus, road transport units (trucks tractors, trailers), off-the-road vehicles -, agricultural or engineering machinery, other transport or handling vehicles.
  • heavy vehicles such as "heavy goods vehicles” - ie, subway, bus, road transport units (trucks tractors, trailers), off-the-road vehicles -, agricultural or engineering machinery, other transport or handling vehicles.
  • the tire comprises a carcass reinforcement anchored in two beads and radially surmounted by a crown reinforcement itself surmounted by a tread which is joined to said beads by two flanks, said crown reinforcement comprises cables such that defined above.
  • the cable is intended to be used as reinforcing element of a protective layer.
  • the cable is intended to be used as reinforcing element for a working ply.
  • the cable could also be used in other embodiments to reinforce other tire parts for other types of vehicles.
  • such a hooping sheet may be arranged radially between the carcass ply (s) and the working ply (s), between the working plies, between the working ply (s) and the protective ply (s). .
  • the cable 10 is of the multi-strand type with two cylindrical layers. Thus, it is understood that the strand layers constituting the cable 10 are two in number. The layers of strands are adjacent and concentric. The cable 10 is devoid of rubber when it is not integrated with the tire.
  • the layer C1 has a substantially tubular envelope giving the layer C1 its cylindrical contour E1.
  • the inner strands TI are helically wound in a pitch p between 3.6 and 16 mm included terminals, preferably between 4 and 12.8 mm included terminals.
  • pl 7.5 mm
  • the layer C2 has a substantially tubular envelope giving the C2 layer its cylindrical contour E2.
  • the outer strands TE are contiguous, which corresponds to a position of mechanical equilibrium, and at least two external strands TE are separated by an opening 14 for the passage of the eraser.
  • the inner layer C2 is unsaturated, that is to say that there is sufficient space in the layer C2 to add at least one (L + 1) th strand of the same diameter as the L strands of the layer C2, several strands can then be in contact with each other.
  • the outer strands TE are arranged so that the layer C2 allows the passage of the rubber radially between the outside and the inside of the layer C2 through the opening 14.
  • the strands TI and TE are advantageously wound in the same direction of torsion, that is to say either in the S direction ("S / S" disposition), or in the Z direction (“Z / Z” disposition). here according to the S / S provision.
  • a strand TI, TE Such a strand is called elementary strand.
  • Each strand TI, TE has an elongated envelope giving each strand TI, TE its contour E3 oblong.
  • the external son F2 are generally contiguous when the cable is at rest, which corresponds to a position of mechanical equilibrium, and at least two external wires F2 are separated by an opening 18 for the passage of the rubber.
  • the layer 16 is unsaturated, that is to say that there is sufficient space in the layer 16 to add at least one (N + 1) th external wire F2 of the same diameter as the N external wires F2 of the layer 16.
  • the outer son F2 of the layer 16 are arranged so that the layer 16 allows the passage of the rubber radially between the outside and the inside of the layer 16 through the opening 18.
  • Each F1, F2 wire is preferably made of brass coated carbon steel.
  • the carbon steel wires are prepared in a known manner, for example starting from machine wires (diameter 5 to 6 mm) which are first cold-rolled, by rolling and / or drawing, to a neighboring intermediate diameter. of 1 mm.
  • the steel used for the cable 10 is a carbon steel of the NT type ("Normal Tensile") whose carbon content is 0.7%, the rest being made up of iron and the usual unavoidable impurities related to the manufacturing process. steel.
  • NT type Normal Tensile
  • SHT Very High Tensile
  • the intermediate diameter son undergo a degreasing treatment and / or pickling, before further processing.
  • a brass coating on these intermediate son is carried on each wire a so-called "final" work hardening (ie, after the last patenting heat treatment), by cold drawing in a moist medium with a drawing lubricant which is for example in the form of an emulsion or an aqueous dispersion.
  • the brass coating that surrounds the son has a very small thickness, significantly less than one micrometer, for example of the order of 0.15 to 0.30 microns, which is negligible compared to the diameter of the steel son.
  • the composition of the wire steel in its various elements is the same as that of the steel of the starting wire.
  • the internal wires F1 of each of the K internal strands TI are helically wound in a pitch p1, i between 3.6 and 16 mm included terminals, preferably between 4 and 12.8 mm included terminals.
  • the diameter D1, i of the internal wires F1 of each of the K internal strands TI is between 0.18 mm and 0.40 mm inclusive, preferably between 0.20 mm and 0.32 mm included terminals.
  • all internal wires F1 of K internal strands TI have the same diameter.
  • the internal wires F1 of each inner strand T1 are wound so that the ratio R1, i of the pitch p1, i internal wires F1 on their diameter D1, i is between 20 and 40 included terminals.
  • R1, i 7.5 mm
  • D1, i 0.26 mm
  • R1, i 28.8.
  • the external wires F2 of each of the K internal strands TI are helically wound in a pitch p2, between 3.1 and 8.4 mm inclusive, preferably between 3.4 and 6.7 mm inclusive.
  • the diameter D2, i of the external wires F2 of each of the K internal strands TI is between 0.18 mm and 0.40 mm included terminals, preferably between 0.20 mm and 0.32 mm included terminals.
  • all the external wires F2 of the K inner strands TI have the same diameter.
  • the external wires F2 of each inner strand TI are wound helically around the inner layer 12 so that the ratio R2, i of the pitch p2, i of the outer wires F2 of each inner strand TI on their diameter D2, i is between 17 and 21 terminals included.
  • p2, i 5 mm
  • D2, i 0.26 mm
  • R2, i 19.2.
  • the internal wires F1 of each of the L outer strands TE are wound in a pitch p1, e between 7.2 and 32 mm included terminals, preferably between 8 and 25.6 mm included terminals.
  • the diameter D1, e of the internal wires F1 of each of the L outer strands TE is between 0.18 mm and 0.40 mm inclusive, preferably between 0.20 mm and 0.32 mm included terminals.
  • all the inner wires F1 of the L outer strands TE have the same diameter.
  • the internal wires F1 of each outer strand TE are wound so that the ratio R1, e of the pitch p1, e of the internal wires F1 on their diameter D1, e is between 40 and 80 included terminals.
  • p1, e 15 mm
  • D1, e 0.26 mm
  • R1, e 57.7.
  • the outer wires F2 of each of the L outer strands TE are wound in a pitch p2, e between 4.1 and 13.2 mm inclusive, preferably between 4.6 mm and 10.6 mm included terminals.
  • the diameter D2, e of the external wires F2 of each of the L external strands TE is between 0.18 mm and 0.40 mm included terminals, preferably between 0.20 mm and 0.32 mm included terminals.
  • all the external wires F2 of the L outer strands TI have the same diameter.
  • the external wires F2 of each outer strand TE are helically wound around the inner layer 12 so that the ratio R2, e of the pitch p2, e of the external wires F2 of each outer strand TE on their diameter D2, e is between 23 and 33 terminals included.
  • R2, e 7.5 mm
  • D2, e 0.26 mm
  • R2, e 28.8.
  • all the F1 and F2 son have the same diameter.
  • the wires F1, F2 of each strand TI, TE are advantageously wound in the same direction of torsion, that is to say either in the direction S ("S / S" arrangement) or in the Z direction (“disposition” Z / Z "), here according to the S / S arrangement.
  • This cable 100 has a structure of the type 4 x (1 + 5) and comprises four strands T each comprising an inner layer 102 consisting of a wire 104 and an outer layer 106 consisting of five son 108 wound helically around the wire 104 of the inner layer 102.
  • the strands T delimit a central channel 110
  • each elementary strand TI and TE is formed as follows.
  • the N internal threads F2 constituting the outer layer 16 are helically wound in an intermediate pitch equal to 15 mm in the direction S around the two internal wires F1 constituting the inner layer 12.
  • the inner son F1 are parallel and then have an infinite intermediate pitch.
  • the cable 10 is assembled as follows.
  • K internal strands TI formed previously are wound in a helix at the stage of forming the strands TI and constituting the inner layer C1 in a step, referred to as initial pitch, equal to 7.5 mm in the meaning S.
  • a helix external layer C2 consisting of L external strands TE formed previously in step forming TE strands in a pitch, said initial, equal to 15 mm in the direction S around the inner layer C1 of K previously wound helical strands.
  • the strands TI, TE and the wires F1, F2 of the layers C1, C2 then have the initial steps, mentioned in Table 1. As a variant, they have other initial steps.
  • Table 1 ⁇ / b> Layer Strand Son Not C1 TI 7.5 mm F1 7.5 mm F2 5 mm C2 YOU 15 mm F1 15 mm F2 7.5 mm
  • an overtriming step of the cable 10 is carried out.
  • the cable 10 be twisted further in the direction S, the wires F1, F2 and the strands TE, TI previously wound. .
  • the respective initial steps of the threads F1, F2 and the strands TI, TE are reduced so as to obtain intermediary steps lower than the corresponding initial steps.
  • a step of balancing the overwired cable 10 is performed so as to obtain a zero residual torque in the cable 10.
  • the cable is passed to through rotating type balancing means.
  • balancing is meant here, in a manner known to those skilled in the art, the cancellation of the residual torsional torques (or of the springback of untwisting) exerted, on the one hand, on each wire of the cable to the Twisted state and secondly, on each strand of the cable in the twisted state.
  • the balancing means are known to those skilled in the art of twisting. They may consist for example of twisters comprising for example one, two or four pulleys, pulleys through which the cable runs, in a single plane.
  • a step of untwisting the twisted and balanced cable is carried out.
  • the cable 10 is twisted in the direction Z, the wires F1, F2 and the strands TE, TI of the previously balanced cable 10.
  • the intermediate steps of the wires F1, F2 and strands TE, TI are increased to obtain the initial steps.
  • the threads F1, F2 and strands TI, TE are again those of Table 1.
  • the cable 10 is wound on a storage reel.
  • the previously described cable 10 is obtainable by the method described above.
  • the tire 20 has a crown 22 reinforced by a crown reinforcement 24, two sidewalls 26 and two beads 28, each of these beads 28 being reinforced with a rod 30.
  • the crown 22 is surmounted by a tread not shown on this schematic figure.
  • a carcass reinforcement 32 is wrapped around the two rods 30 in each bead 28 and comprises an upturn 34 disposed towards the outside of the tire 20 which is represented here mounted on a rim 36.
  • the carcass reinforcement 32 is, in a known manner, it consists of at least one sheet reinforced by so-called "radial” cables, that is to say that these cables are arranged substantially parallel to each other and extend from one bead to the other so as to forming an angle of between 80 ° and 90 ° with the median circumferential plane (plane perpendicular to the axis of rotation of the tire which is situated halfway between the two beads 28 and passes through the middle of the crown reinforcement 24) .
  • the crown reinforcement 24 comprises at least one crown ply whose reinforcing ropes are metal ropes 10 as described above.
  • the cables may, for example, reinforce all or part of the working crown plies, or triangulation crown plies (or half-plies) and / or crown protection plies, when such triangulation or protection top plies are used. are used.
  • the crown reinforcement 24 of the tire 20 may of course comprise other crown plies, for example one or more hooping crown plies.
  • the tire 20 also comprises, in a known manner, an inner rubber or elastomer layer (commonly called “inner liner”) which defines the radially inner face of the tire and which is intended to protect the carcass ply from the diffusion of the tire. air from the interior space to the tire.
  • inner liner an inner rubber or elastomer layer
  • it may further comprise an intermediate reinforcing elastomer layer which is located between the carcass ply and the inner layer, intended to reinforce the inner layer and, by Therefore, the carcass ply, also intended to partially relocate the forces experienced by the carcass reinforcement.
  • the density of the cables 10 is preferably between 15 and 80 cables per dm (decimetre) of belt ply included terminals, more preferably between 35 and 65 cables per dm of ply included terminals, the distance between two adjacent cables, axis to axis, preferably being between about 1.2 and 6.5 mm inclusive, more preferably between about 1.5 and 3.0 mm inclusive.
  • the cables 10 are preferably arranged in such a way that the width (denoted L) of the rubber bridge, between two adjacent cables, is between 0.5 and 2.0 mm inclusive.
  • This width L represents, in known manner, the difference between the calendering pitch (no laying of the cable in the rubber fabric) and the diameter of the cable.
  • the rubber bridge which is too narrow, risks being degraded mechanically during the working of the sheet, in particular during the deformations undergone in its own plane by extension or shearing. Beyond the maximum indicated, there is a risk of occurrence of penetration of objects, by perforation, between the cables. More preferably, for these same reasons, the width L is chosen between 0.8 and 1.6 mm inclusive.
  • the rubber composition used for the fabric of the belt ply has, in the vulcanized state (ie, after firing), an E10 extension secant modulus which is between 5 and 25 MPa inclusive, more preferably between 5 and 20 MPa limits included, especially in a domain from 7 to 15 MPa limits included, when this fabric is intended to form a lap of the belt, for example a protective layer. It is in such areas of modules that we have recorded the best compromise of endurance between the cables 10 on the one hand, the reinforced fabrics of these cables on the other hand.
  • the cable 10 is incorporated by calendering with composite fabrics formed of a known composition based on natural rubber and carbon black as reinforcing filler, conventionally used for the manufacture of radial tire crown reinforcement.
  • This composition essentially comprises, in addition to the elastomer and the reinforcing filler (carbon black), an antioxidant, stearic acid, an extension oil, cobalt naphthenate as adhesion promoter, finally a vulcanization system (sulfur, accelerator, ZnO).
  • the composite fabrics reinforced by these cables comprise a rubber matrix formed of two thin layers of rubber which are superimposed on both sides of the cables and which have a thickness of between 0.5 mm and 0.8 mm inclusive respectively.
  • the calender pitch (no laying of the cables in the rubber fabric) is between 1.3 mm and 2.8 mm inclusive.
  • Cable 10 was compared with cable 100 of the state of the art 4 x (1 + 5) structure.
  • each wire 104, 108 of the cable 100 is equal to 0.26 mm.
  • the pitch P of the strands 106 is equal to 8 mm and the pitch p of the wires 108 around the wire 104 is equal to 5 mm.
  • the breaking force measurement denoted Fm maximum load in N
  • Fm maximum load in N
  • the measurements of total elongation at break (At) and of elongation or structural elongation (As) (% elongations) are well known to those skilled in the art and described, for example, in the document US 2009/294009 (see the figure 1 and the description concerning it).
  • the cable 10 has a total elongation at break of greater than or equal to 4.5%, preferably 5% and more preferably 5.5%.
  • the cable 10 has a structural elongation As greater than or equal to 1%, preferably 1.5%. In a variant not shown, the structural elongation As is greater than or equal to 2%.
  • the breaking strength of the cable 10 is greater than or equal to 4000 N, preferably 5000 N and even 6000 N.
  • the cable 10 has a breaking force 2.3 times greater than the cable 100 while maintaining its structural elongation properties and therefore its elasticity.
  • This elasticity is, as described above, representative of the aeration of the cable which also promotes the high penetrability of the cable by the rubber.
  • This test makes it possible to determine the longitudinal permeability to the air of the cables tested, by measuring the volume of air passing through a specimen under constant pressure for a given time.
  • the principle of such a test is to demonstrate the effectiveness of the treatment of a cable to make it impermeable to air; it has been described for example in ASTM D2692-98.
  • the test is here performed either on cables extracted from tires or rubber sheets that they reinforce, so already coated from the outside by the rubber in the fired state, or on raw cables manufacturing.
  • the raw cables must be previously coated from the outside by a so-called coating gum.
  • a series of 10 cables arranged in parallel is placed between two layers or “skims" (two rectangles of 80 x 200 mm) of a diene rubber composition in the green state, each skim having a thickness of 3.5 mm; the whole is then locked in a mold, each of the cables being kept under a sufficient tension (for example 2 daN) to ensure its straightness during the establishment in the mold, using clamping modules; then we proceed to the vulcanization (cooking) during 40 min at a temperature of 140 ° C and a pressure of 15 bar (rectangular piston 80 x 200 mm). After which, the assembly is demolded and cut 10 pieces of cables thus coated, in the form of parallelepipeds of dimensions 7x7x20 mm, for characterization.
  • sulfur (7 phr), accelerator is used as a coating rubber.
  • the test is carried out on 2 cm of cable length, thus coated by its surrounding rubber composition (or coating gum) in the fired state, as follows: air is sent to the cable inlet at a pressure of 1 bar, and the volume of air at the outlet is measured using a flow meter (calibrated for example from 0 to 500 cm3 / min).
  • a flow meter calibrated for example from 0 to 500 cm3 / min.
  • the cable sample is locked in a compressed seal (eg a dense foam or rubber seal) in such a way that only the amount of air passing through the cable from one end to the other, along its longitudinal axis, is taken into account by the measure; the tightness of the seal itself is checked beforehand with the aid of a solid rubber specimen, that is to say without cable.
  • a compressed seal eg a dense foam or rubber seal
  • the average air flow measured (average of the 10 specimens) is even lower than the longitudinal imperviousness of the cable is high.
  • measured values less than or equal to 0.2 cm3 / min are considered as zero; they correspond to a cable which can be described as airtight (totally airtight) along its axis (i.e., in its longitudinal direction).
  • the cable 10 was subjected to the air permeability test described above, by measuring the volume of air (in cm 3 ) passing through the cables in 1 minute (average of 10 measurements).
  • the measured average air flow of the cable 10 is zero, which means that for each test piece, the measured air flow rate is less than or equal to 0.2 cm3 / min.
  • the cable 10 therefore has a very low air permeability, since it is almost zero (average air flow rate is zero) and consequently a higher penetration rate by the rubber.
  • the cable 10 thus makes it possible to significantly improve the corrosion resistance.
  • certain wires could be of non-circular section, for example plastically deformed, in particular with a substantially oval or polygonal cross-section, for example triangular, square or rectangular.
  • the son of circular section or not, for example a corrugated wire, may be twisted, twisted helical or zig-zag.
  • the diameter of the wire represents the diameter of the cylinder of imaginary revolution which surrounds the wire (space diameter), and no longer the diameter (or any other transverse size, if its section is not circular) of the core wire itself.
  • linear son that is to say right, and conventional circular cross section.

Landscapes

  • Ropes Or Cables (AREA)

Claims (14)

  1. Verfahren zur Herstellung eines zweilagigen Mehrlitzen-Metallseils (10):
    - schraubenlinienförmiges Wickeln von N Drähten (F2), die eine äußere Lage (16) einer Litze (TI, TE) darstellen, um 2 Drähte (F1), die eine innere Lage (12) der Litze (TI, TE) darstellen, sodass die Litze (TI, TE) entsteht;
    - schraubenlinienförmiges Wickeln von L>1 zuvor hergestellten äußeren Litzen (TE), die eine ungesättigte äußere Lage (C2) des Seils (10) darstellen, um K>1 zuvor hergestellte innere Litzen (TI), die eine innere Lage (C1) des Seils (10) darstellen,
    - Verdrillen des gewickelten Seils (TI, TE);
    - Durchführen eines Schritts zum Ausgleichen des verdrillten Seils (10), sodass in dem Seil (10) ein Restdrehmoment von Null erreicht wird, und
    - Durchführen eines Schritts zum Entdrillen des ausgeglichenen verdrillten Seils (10).
  2. Verfahren nach dem vorhergehenden Anspruch, wobei die K inneren Litzen schraubenlinienförmig gewickelt werden.
  3. Verfahren nach einem der vorhergehenden Ansprüche, wobei in dieser Reihenfolge:
    - jede innere und äußere Litze hergestellt wird;
    - die zuvor hergestellten K inneren Litzen schraubenlinienförmig gewickelt werden; und
    - die zuvor hergestellten L äußeren Litzen schraubenlinienförmig um die zuvor schraubenlinienförmig gewickelten K inneren Litzen gewickelt werden.
  4. Verfahren nach einem der vorhergehenden Ansprüche, wobei die äußere Lage (16) jeder Litze (TI, TE) ungesättigt ist.
  5. Verfahren nach einem der vorhergehenden Ansprüche, wobei die Reißkraft (Fm) des Seils (10) größer gleich 4000 N, vorzugsweise 5000 N und bevorzugter 6000 N ist.
  6. Verfahren nach einem der vorhergehenden Ansprüche, wobei das Seil (10) eine Strukturdehnung (As) größer gleich 1 %, vorzugsweise 1,5 % und bevorzugter 2 % aufweist.
  7. Verfahren nach einem der vorhergehenden Ansprüche, wobei das Seil (10) eine Gesamtbruchdehnung (At) größer gleich 4,5%, vorzugsweise 5% und bevorzugter 5,5% aufweist.
  8. Verfahren nach einem der vorhergehenden Ansprüche, wobei K=3 oder K=4.
  9. Verfahren nach einem der vorhergehenden Ansprüche, wobei L=8 oder L=9.
  10. Verfahren nach einem der vorhergehenden Ansprüche, wobei N=2, N=3 oder N=4.
  11. Verfahren nach einem der vorhergehenden Ansprüche, wobei die innere (12) und äußere (16) Lage von jeder der K inneren Litzen (TI) in derselben Verdrillungsrichtung gewickelt sind.
  12. Verfahren nach einem der vorhergehenden Ansprüche, wobei die innere (12) und äußere (16) Lage von jeder der L äußeren Litzen (TE) in derselben Verdrillungsrichtung gewickelt sind.
  13. Verfahren nach einem der vorhergehenden Ansprüche, wobei die innere (C1) und äußere (C2) Lage des Seils (10) in derselben Verdrillungsrichtung gewickelt sind.
  14. Verfahren nach einem der vorhergehenden Ansprüche, wobei sämtliche Drähte (F1, F2) und Litzen (TI, TE) in derselben Verdrillungsrichtung gewickelt sind.
EP13724817.5A 2012-05-25 2013-05-23 Verfahren zur herstellung eines zweischichtigen mehrsträngigen metallseils Not-in-force EP2855763B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1254837A FR2990962B1 (fr) 2012-05-25 2012-05-25 Procede de fabrication d'un cable metallique multi-torons a deux couches.
PCT/EP2013/060564 WO2013174896A1 (fr) 2012-05-25 2013-05-23 Procede de fabrication d'un câble metallique multi-torons à deux couches

Publications (2)

Publication Number Publication Date
EP2855763A1 EP2855763A1 (de) 2015-04-08
EP2855763B1 true EP2855763B1 (de) 2017-07-12

Family

ID=48485179

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13724817.5A Not-in-force EP2855763B1 (de) 2012-05-25 2013-05-23 Verfahren zur herstellung eines zweischichtigen mehrsträngigen metallseils

Country Status (7)

Country Link
US (1) US20150159325A1 (de)
EP (1) EP2855763B1 (de)
JP (1) JP6131514B2 (de)
KR (1) KR20150011840A (de)
CN (1) CN104350201B (de)
FR (1) FR2990962B1 (de)
WO (1) WO2013174896A1 (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3020016B1 (fr) 2014-04-22 2016-04-01 Michelin & Cie Pneumatique pour vehicule industriel lourd
FR3020017B1 (fr) 2014-04-22 2017-06-09 Michelin & Cie Pneumatique pour vehicule de genie civil
FR3028872B1 (fr) 2014-11-25 2017-05-19 Michelin & Cie Procede de fractionnement
FR3028873B1 (fr) 2014-11-25 2016-12-23 Michelin & Cie Installation de fractionnement
FR3032978B1 (fr) 2015-02-19 2017-10-27 Michelin & Cie Cable multitorons de structure 1xn pour armature de protection de pneumatique
WO2016189074A1 (fr) 2015-05-26 2016-12-01 Compagnie Generale Des Etablissements Michelin Installation de fabrication d'un assemblage
FR3060617A1 (fr) 2016-12-20 2018-06-22 Compagnie Generale Des Etablissements Michelin Cable multi-torons a deux couches a penetrabilite amelioree
FR3060616A1 (fr) 2016-12-20 2018-06-22 Compagnie Generale Des Etablissements Michelin Cable multi-torons a deux couches a penetrabilite amelioree
WO2019086929A1 (en) * 2017-10-31 2019-05-09 Compagnie Generale Des Etablissements Michelin Cable for a tire
CN111492106B (zh) 2017-12-19 2022-03-29 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
EP3728730B1 (de) 2017-12-19 2022-06-29 Compagnie Générale des Etablissements Michelin Zweilagige mehrsträngige korde mit sehr niedrigen, niedrigen und mittleren moduli
CN111511983B (zh) * 2017-12-19 2022-03-15 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
EP3728731B1 (de) 2017-12-19 2022-08-03 Compagnie Generale Des Etablissements Michelin Zweilagige mehrsträngige korde mit sehr niedrigen, niedrigen und mittleren moduli
EP3728727A1 (de) 2017-12-19 2020-10-28 Compagnie Generale Des Etablissements Michelin Zweischichtige mehradrige kabel mit sehr niedrigem, niedrigem und mittlerem modul
FR3090496A3 (fr) * 2018-12-19 2020-06-26 Michelin & Cie Procédé de fabrication d’un câble multi-torons à deux couches
FR3090495A3 (fr) * 2018-12-19 2020-06-26 Michelin & Cie Procédé de fabrication d’un câble multi-torons à deux couches
CN113165439B (zh) * 2018-12-20 2023-06-27 倍耐力轮胎股份公司 用于车辆车轮的轮胎
FR3092343A1 (fr) * 2019-02-05 2020-08-07 Compagnie Generale Des Etablissements Michelin Câble multitorons de structure 1xN à haute énergie à rupture
JP2023502224A (ja) * 2019-11-15 2023-01-23 コンパニー ゼネラール デ エタブリッスマン ミシュラン 被覆内層を有する、浸透性が改善された２層マルチストランドケーブル
FR3103500A1 (fr) * 2019-11-22 2021-05-28 Compagnie Generale Des Etablissements Michelin Câble multi-torons à deux couches à énergie de rupture surfacique améliorée
JP2023509076A (ja) * 2020-01-07 2023-03-06 コンパニー ゼネラール デ エタブリッスマン ミシュラン 改良された破断時エネルギー及び改良された全伸びを有する単層マルチストランドコード
FR3136791B1 (fr) * 2022-06-20 2024-05-10 Michelin & Cie Câble multi-torons à deux couches de multi-torons
FR3136788B1 (fr) * 2022-06-20 2024-05-10 Michelin & Cie Câble multi-torons à deux couches de multi-torons
FR3136790B1 (fr) * 2022-06-20 2024-05-10 Michelin & Cie Câble multi-torons à deux couches de multi-torons
FR3136789B1 (fr) * 2022-06-20 2024-05-10 Michelin & Cie Câble multi-torons à deux couches de multi-torons

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58191608A (ja) * 1982-04-30 1983-11-08 Kanai Hiroyuki スチ−ルコ−ド
US5487262A (en) * 1993-04-20 1996-01-30 N.V. Bekaert S.A. Method and device for overtwisting and undertwisting a steel cord
EP0627521B1 (de) * 1993-04-20 1997-11-19 N.V. Bekaert S.A. Behandlung eines Stahlseils
US5843583A (en) 1996-02-15 1998-12-01 N.V. Bekaert S.A. Cord with high non-structural elongation
JP3759292B2 (ja) * 1997-08-06 2006-03-22 株式会社ブリヂストン ゴム物品補強用スチールコード及び空気入りタイヤ
JP4603721B2 (ja) * 2001-05-11 2010-12-22 株式会社ブリヂストン ゴム物品補強用スチールコード及びタイヤ
DE602004013324T2 (de) 2003-07-22 2009-07-09 N.V. Bekaert S.A. Hybridkord hoher dehnung
FR2864556B1 (fr) * 2003-12-24 2006-02-24 Michelin Soc Tech Cable a couches pour armature de carcasse de pneumatique
FR2870264B1 (fr) * 2004-05-12 2006-07-14 Michelin Soc Tech Cable metallique pour pneumatique
JP4636597B2 (ja) * 2004-11-29 2011-02-23 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
FR2897076B1 (fr) * 2006-02-09 2008-04-18 Michelin Soc Tech Cable composite elastique pour pneumatique.
EP2423380B1 (de) * 2006-08-31 2016-10-12 Bridgestone Corporation Stahlcord zur Verstärkung von Gummi- und Luftradialreifen
FR2925923B1 (fr) * 2007-12-28 2009-12-18 Michelin Soc Tech Procede et dispositif de fabrication d'un cable a deux couches du type gomme in situ
FR2934614B1 (fr) * 2008-08-01 2010-09-10 Michelin Soc Tech Cable a couches gomme in situ pour armature carcasse de pneumatique.
JP2012522903A (ja) * 2009-04-03 2012-09-27 ナムローゼ・フェンノートシャップ・ベーカート・ソシエテ・アノニム 予め成形されたストランドから成る伸びの大きい鋼索
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.
FR2959517B1 (fr) * 2010-04-28 2012-09-21 Michelin Soc Tech Cable metallique multitorons elastique a haute permeabilite.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
WO2013174896A1 (fr) 2013-11-28
JP6131514B2 (ja) 2017-05-24
CN104350201B (zh) 2017-02-22
FR2990962A1 (fr) 2013-11-29
US20150159325A1 (en) 2015-06-11
KR20150011840A (ko) 2015-02-02
EP2855763A1 (de) 2015-04-08
FR2990962B1 (fr) 2014-06-27
JP2015520810A (ja) 2015-07-23
CN104350201A (zh) 2015-02-11

Similar Documents

Publication Publication Date Title
EP2855763B1 (de) Verfahren zur herstellung eines zweischichtigen mehrsträngigen metallseils
EP2855764A1 (de) Zweischichtiges mehrsträngiges metallseil
EP2727744B1 (de) Stahlseil mit mehreren Litzen für Luftreifen
EP3559337B1 (de) Mehradriges kabel mit zwei schichten mit verbesserter durchlässigkeit
EP2931966A2 (de) Stahlseil mit schichten mit hoher durchlässigkeit
WO2015090920A1 (fr) Câble métallique multi-torons à deux couches
WO2016202622A1 (fr) Câble métallique multi-torons
FR2959517A1 (fr) Cable metallique multitorons elastique a haute permeabilite.
EP3559338B1 (de) Zweischichtiges mehradriges kabel mit verbesserter durchlässigkeit
WO2015090921A1 (fr) Câble métallique multi-torons à deux couches
EP3810846B1 (de) Doppellagiges mehrfachstrangseil mit verbesserter durchlässigkeit
EP4061996B1 (de) Zweischichtiges mehradriges kabel mit einer verbesserten oberflächenenergie bis zum bruch
EP1349983A1 (de) Mehrlagiger stahl?kord für reifenarmierung
WO2019243690A1 (fr) Câble multi-torons à deux couches à pénétrabilité améliorée
WO2014090998A2 (fr) Câble métallique à couches cylindriques de structure 2+9+14
WO2014090999A2 (fr) Câble métallique à couches cylindriques de structure 3+9+14
EP4240897A1 (de) Zweilagiges mehrsträngiges kabel mit umhüllter innenschicht mit verbesserter durchlässigkeit
CA3213946A1 (fr) Cable multi-torons a deux couches a energie de rupture surfacique amelioree
FR3136789A1 (fr) Câble multi-torons à deux couches de multi-torons
FR3136787A1 (fr) Câble multi-torons à une couche de multi-torons
FR3136791A1 (fr) Câble multi-torons à deux couches de multi-torons
WO2019243689A1 (fr) Câble multi-torons à deux couches à pénétrabilité améliorée
WO2019243692A1 (fr) Câble multi-torons à deux couches à pénétrabilité améliorée
CA3161403A1 (fr) Cable multi-torons a deux couches a energie a rupture amelioree et a module tangent bas
FR3122674A1 (fr) Câble multi-torons à deux couches à énergie de rupture surfacique améliorée

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20150105

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20170224

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 908432

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170715

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602013023400

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20170712

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 908432

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170712

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171012

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170712

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170712

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170712

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170712

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170712

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170712

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170712

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170712

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171112

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170712

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170712

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171013

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171012

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602013023400

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170712

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170712

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170712

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170712

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170712

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170712

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170712

26N No opposition filed

Effective date: 20180413

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170712

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170712

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602013023400

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20180523

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20180531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170712

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180531

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180523

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180531

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180523

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181201

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180523

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170712

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170712

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170712

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20130523

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170712

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170712