WO2008029857A1 - Câble métallique annulaire, courroie métallique sans fin et procédé de fabrication de câble métallique annulaire - Google Patents

Câble métallique annulaire, courroie métallique sans fin et procédé de fabrication de câble métallique annulaire Download PDF

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Publication number
WO2008029857A1
WO2008029857A1 PCT/JP2007/067337 JP2007067337W WO2008029857A1 WO 2008029857 A1 WO2008029857 A1 WO 2008029857A1 JP 2007067337 W JP2007067337 W JP 2007067337W WO 2008029857 A1 WO2008029857 A1 WO 2008029857A1
Authority
WO
WIPO (PCT)
Prior art keywords
strand material
metal cord
annular
annular metal
strand
Prior art date
Application number
PCT/JP2007/067337
Other languages
English (en)
Japanese (ja)
Inventor
Hiroshi Sasabe
Hitoshi Wakahara
Yuichi Sano
Kenichi Okamoto
Original Assignee
Sumitomo(Sei) Steel Wire Corp.
Sumitomo Electric Tochigi Co., Ltd.
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
Priority claimed from JP2007148299A external-priority patent/JP2008291410A/ja
Application filed by Sumitomo(Sei) Steel Wire Corp., Sumitomo Electric Tochigi Co., Ltd. filed Critical Sumitomo(Sei) Steel Wire Corp.
Priority to US12/160,207 priority Critical patent/US20090088278A1/en
Priority to DE112007002022T priority patent/DE112007002022T5/de
Publication of WO2008029857A1 publication Critical patent/WO2008029857A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G1/00—Driving-belts
    • F16G1/22—Driving-belts consisting of several parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F7/00—Twisting wire; Twisting wire together
    • 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
    • D07B1/0673—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration
    • D07B1/068—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration characterised by the strand design
    • 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
    • D07B7/16—Auxiliary apparatus
    • D07B7/165—Auxiliary apparatus for making slings
    • 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
    • D07B7/16—Auxiliary apparatus
    • D07B7/167—Auxiliary apparatus for joining rope components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G9/00—Ropes or cables specially adapted for driving, or for being driven by, pulleys or other gearing elements

Definitions

  • Annular metal cord endless metal belt and method for producing annular metal cord
  • the present invention relates to an annular metal cord, an endless metal belt, and a method for producing an annular metal cord.
  • an endless belt using a metal cord as a core material is known.
  • the metal cord serving as the core material includes at least one filament serving as the central core and a plurality of filaments surrounding the central core.
  • Patent Document 1 Japanese Published Patent: Japanese Patent Application Laid-Open No. 2003-236610
  • Patent Document 2 Japanese Published Patent: Japanese Patent Laid-Open No. 4 307146
  • the endless metal belt described in Patent Document 1 has a rectangular cross section, it is vulnerable to twisting and easily breaks.
  • the metal cord described in Patent Document 2 is applied to an endless metal belt, it is necessary to join both ends of the metal cord into an annular shape.
  • a method of joining both ends of the metal cord a method of joining both ends of the metal cord and a method of joining both ends of each filament constituting the metal cord can be considered. In the method in which both ends of the metal cord are joined together and joined, the joining portion is concentrated at one place in the circumferential direction, and thus the metal cord is likely to be completely broken.
  • an object of the present invention is to provide an annular metal cord, an endless metal belt, and a method for producing an annular metal cord that are less likely to break and are easy to manufacture.
  • An annular metal cord according to the present invention that can solve the above-described problems is formed by an annular core portion formed into an annular shape by a strand material formed by twisting a plurality of metal strands, and an annular core portion. And an outer layer part covering the outer peripheral surface of the annular core part is formed, and the annular core part and the outer layer part are formed by a continuous strand material! / .
  • annular metal cord can be made strong, and a plurality of strand materials can be provided at one place in the circumferential direction. Compared with the case of joining together, the possibility that the annular metal cord is completely broken can be avoided.
  • the external force applied to the annular metal cord can be received by the continuous annular core portion and the outer layer portion, the applied external force can be dispersed throughout the entire annular metal cord, and local load concentration can be avoided. Therefore, since the annular core portion is formed from the strand material, and the strand material is continuously wound around the annular core portion as a shaft, the annular metal cord having a high breaking strength can be obtained.
  • the outer layer portion when forming the outer layer portion, a plurality of strand materials are not wound, but the strand materials constituting the annular core portion are continuously wound over a plurality of circumferences, so there is only one strand material. Therefore, since the number of bonded portions is reduced as compared with the case where a plurality of strand materials are used, it is possible to suppress a decrease in the breaking strength of the annular metal cord and to facilitate the manufacture. If the strand material of the outer layer portion is wound at a predetermined winding angle, an annular metal cord having a substantially uniform surface state in which the strand material is not disturbed can be obtained. Such an annular metal cord is prevented from concentrating external force on a specific portion and is uniformly applied.
  • the force S can be used to suppress a decrease in the breaking strength.
  • the annular core portion and the outer layer portion are formed by one strand material, and both end portions of the strand material are bonded to each other.
  • the cross-sectional area of the joining portion is only one strand material, the difference from the other portion of the load when the annular metal cord is bent can be reduced to suppress the decrease in breaking strength.
  • one end portion of the strand material is a starting end portion that forms an annular core portion, and the other end portion of the strand material is an end portion that forms an outer layer portion.
  • annular metal cord with a big breaking strength by which the start end part of the strand material which formed the cyclic
  • one end portion of the strand material may be an extra length portion when the annular core portion is formed, and the extra length portion may constitute a part of the outer layer portion.
  • the end of the extra length portion when the annular core portion is formed and the end portion of the strand material forming the outer layer portion are joined together, and the extra length portion is made a part of the outer layer portion and has a high breaking strength.
  • An annular metal cord can be used.
  • the diameter of the metal strand is 0.06 mm or more and 0.40 mm or less.
  • the strand material can have an appropriate rigidity, and the strand material can have a good fatigue resistance.
  • the diameter of the metal strand is more preferably 0.06 mm or more and 0.22 mm or less.
  • the twisting direction of the metal strand is opposite to the winding direction of the outer layer portion around the annular core portion.
  • the twisting direction of the metal strand is opposite to the winding direction of the outer layer portion around the annular core portion.
  • the winding angle of the strand material with respect to the central axis of the annular core portion is not less than 4.5 degrees and not more than 13.8 degrees.
  • the winding work of a strand material becomes easy.
  • the strand material force is wound five or six times along the outer peripheral surface of the annular core portion.
  • the strand material is wrapped around the annular core portion three times as the annular core portion. 7 or more and 9 or less wraps around the outer periphery.
  • the force S that makes the annular metal cord geometrically stable can be achieved.
  • the winding direction of the outer layer portion is opposite to the annular core portion.
  • the winding pitch of the annular core portion is reduced and the winding pitch of the outer layer portion is increased (that is, the winding pitch difference between the annular core portion and the outer layer portion is increased). Further, it is possible to prevent the strand material of the outer layer portion from falling into the twist of the strand material of the annular core portion.
  • the annular core portion and the outer layer portion are subjected to a low temperature annealing treatment. Thereby, the internal distortion of a metal strand can be removed.
  • the ends of the strand material are joined together using a connecting member.
  • the joined portion of the strand material can be broken more.
  • the ends of the strand material are joined together by welding, and the joined portion is covered and bonded by a connecting member made of a coil spring-like sleeve.
  • a connecting member made of a coil spring-like sleeve.
  • the ends of the strand material can be easily joined to each other, and the connecting portion can be protected and reinforced by the connecting member.
  • the coil panel-like sleeve has good flexibility, it is flexibly deformed in accordance with the curved shape of the strand material wound spirally, and maintains a tightly attached state to the joined portion, and the strand material in the joined portion.
  • the connecting member does not obstruct the deformation of the. That is, the mechanical properties of the annular metal cord can be made substantially uniform over the entire circumference.
  • the ends of the strand material are overlapped in the axial direction and are accommodated and connected to the inside of a connection member made of a coil spring-like sleeve having a sleeve inner diameter less than twice the diameter of the strand material.
  • a connection member made of a coil spring-like sleeve having a sleeve inner diameter less than twice the diameter of the strand material.
  • This facilitates the bonding of the ends of the strand material.
  • the coil spring-like sleeve has good flexibility, it is flexibly deformed in accordance with the curved shape of the spirally wound strand material, and maintains a close contact state with the connection portion.
  • the connecting member does not hinder the deformation of the strand material. That is, The mechanical characteristics of the annular metal cord can be made substantially uniform over the entire circumference.
  • the connecting member has a sleeve inner diameter less than twice the diameter of the strand material
  • the connecting member force compression force acts on the strand material stacked in the connecting member, and the connecting member and the strand It is firmly connected by the frictional force between the materials and between the strand materials.
  • the strand spring is further compressed and tightened by the coil spring-like sleeve extending in the axial direction, so that a stable connection state can be obtained.
  • connection member is formed of a close coil spring-like sleeve. This makes it easier to maintain the tightening force of the strand material even when bending with a smaller radius of curvature than a spring with a coil gap. In addition, since the number of coil turns per unit length can be increased, the strand material can be easily held strongly.
  • the diameter of the spring wire constituting the connecting member is larger than the diameter of the metal wire.
  • the strength of the spring wire constituting the connecting member is required to some extent.
  • the spring wire diameter is larger than the diameter of the strand metal wire. And it becomes easy to obtain the intensity
  • both end portions of the strand material are connected by plastic deformation at overlapping connection portions twisted together. This eliminates the need for a separate component for connection, thereby suppressing the protrusion of the cord surface as much as possible, and making it suitable for use in a drive transmission vent of an industrial machine. it can.
  • the twisting direction forces in the overlapping connection portions at both ends of the strand material are the same direction as the twist direction of the metal strand in the strand material.
  • the strand material can be easily plastically deformed with a small number of twists and can be connected with higher strength at the overlapping connection portion, and the fatigue strength can be improved.
  • the overlapping connection portion is arranged approximately in the middle between the inner periphery and the outer periphery of the annular metal cord.
  • the overlapping connection portion is arranged approximately in the middle between the inner periphery and the outer periphery where the action of the tensile force and the compression force is minimum, the load acting on the overlapping connection portion even if the annular metal cord is deformed in the radial direction. Can be reduced, and breakage at the overlapping connection portion can be suppressed.
  • the number of twists in the overlapping connection portion of the strand material is 2 to 5 times.
  • the ends of the strand material can be connected with sufficient strength, and the variation in the amount of plastic deformation due to excessive twisting can be suppressed to suppress the weakening of the metal strands, resulting in a high strength connection state. Maintaining power S
  • the endless metal belt according to the present invention capable of solving the above-mentioned problems is characterized by including the annular metal cord according to the present invention.
  • the annular metal cord By using the above-mentioned annular metal cord, it is possible to obtain an endless metal sheet having excellent breaking strength and fatigue resistance and easy to manufacture.
  • a method for manufacturing an annular metal cord according to the present invention includes an annular core portion formed in an annular shape, and a plurality of spiral windings around the annular core portion.
  • An annular metal cord having an outer layer portion covering an outer peripheral surface of the annular core portion, wherein a strand material formed by twisting a plurality of metal strands is wound around a predetermined annular diameter!
  • an outer layer portion that covers the outer peripheral surface of the annular core portion by winding the strand material around the annular core portion in a spiral manner in a state where the vicinity of the start end portion is temporarily fixed to form the annular core portion.
  • a durable annular metal cord is formed by forming an outer layer portion that covers the outer peripheral surface of the annular core portion by winding a plurality of spirals around the annular core portion, and then joining the start and end portions of the strand material.
  • an annular metal cord that can avoid the possibility of complete breakage can be obtained. That is, since the annular core portion is formed from the strand material, and the strand material is wound by continuously using the annular core portion as a shaft, the annular metal cord having a high breaking strength can be obtained.
  • the strand material constituting the annular core portion is continuously wound over a plurality of circumferences instead of winding a plurality of strand materials.
  • the number of joints is reduced, so that it is possible to suppress a decrease in the breaking strength of the annular metal cord and to reduce the production.
  • the strand material of the outer layer portion is wound at a predetermined winding angle, an annular metal cord having a substantially uniform surface state in which the strand material is not disturbed can be obtained. Since an external force is uniformly applied to such an annular metal cord, a decrease in breaking strength can be suppressed.
  • the sleeve inner diameter is less than twice the diameter of the strand material so that the start and end portions of the strand material are stacked along the axial direction. It is accommodated and connected to the inside of a connection member made of a coil spring-like sleeve, and the start end and the end of the end end exposed on the outside of the connection member are cut and removed. This facilitates the joining of the ends of the strand material.
  • the coil spring-like sleeve since the coil spring-like sleeve has good flexibility, it is flexibly deformed in accordance with the curved shape of the spirally wound strand material, and maintains a close contact state with the connecting portion, and the strand material in the connecting portion.
  • the connecting member does not hinder the deformation of That is, it is possible to make the mechanical characteristics of the annular metal cord substantially uniform over the entire circumference. Furthermore, since the connecting member has a sleeve inner diameter less than twice the diameter of the strand material, a connecting member force compression force (clamping force) acts on the strand material stacked in the connecting member, and the connecting member and It is firmly connected by the frictional force between the strand materials and between the strand materials. In addition, even when tension is applied to the connecting portion, the strand spring is more strongly compressed and tightened by the coin spring-like sleeve extending in the axial direction, so that a stable connection state can be obtained.
  • a connecting member force compression force (clamping force) acts on the strand material stacked in the connecting member, and the connecting member and It is firmly connected by the frictional force between the strand materials and between the strand materials.
  • the strand material in the connecting portion is stored inside the connecting member so that the other portions and the shape of the annular metal cord are formed. Aligned and has a substantially uniform structure in the annular direction.
  • one of the start end portion or the end end portion of the strand material is passed through from the one side end portion to the other side end portion of the connecting member,
  • the spring element wire at the other end of the connecting member is moved so that the coil gap between the adjacent spring element wires is widened, and the other of the start end portion or the end end portion of the strand material is inserted into the widened coil gap.
  • passing the coil material along one end of the connecting member along the coil gap In the state of being overlapped along the axial direction, it is accommodated inside the connecting member and connected.
  • one of the start end and the end end of the strand material is passed through the inside of the connection member, and the other is inserted into the coil gap between the spring wires at the end of the connection member.
  • the start and end portions of the strand material are overlapped inside the connecting member having a sleeve inner diameter that is less than twice the diameter of the strand material. And easy to accommodate.
  • the starting end portion of the strand material is inserted from one end portion of the connecting member through the inside to the intermediate portion in the axial direction of the connecting member.
  • the connecting member is pulled out from a coil gap between adjacent spring strands in the axially intermediate portion of the connecting member, and the end portion of the strand material passes through the inside from the other end of the connecting member in the axial direction of the connecting member.
  • the intermediate end portion is pulled out from the coil gap between adjacent spring element wires in the axial direction intermediate portion of the connecting member, and the start end portion of the strand material protruding outward from the coil gap is moved along the coil gap.
  • the start end portion and the end end portion of the strand material are inserted from the end portion of the connecting member through the inside to the intermediate portion in the axial direction of the connecting member, and the spring in the intermediate portion in the axial direction of the connecting member.
  • Inside the connecting member having a sleeve inner diameter that is less than twice the diameter of the strand material by pulling out from the coil gap between the strands and passing it along the coil gap to the end opposite to the crimped side It is easy to accommodate the start and end portions of the strand material on top of each other.
  • the twisting direction of the overlapping connection portions at both ends of the strand material is the same as the twisting direction of the strand material.
  • a method of manufacturing the annular metal cord wherein a pair of plate bodies provided with a pair of holding portions capable of holding the strand material are spaced apart from each other. The opening is disposed, the end portions of the respective strand materials are held by the holding portions of the plate body, and the vicinity of the end portions of the respective strand materials are bridged so as to overlap each other in the axial direction.
  • the vicinity of the end portions of the respective strand materials are held by the holding portions of the plate bodies, and the vicinity of the end portions of the respective strand materials are bridged so as to overlap each other in the axial direction, thereby holding the plate bodies.
  • the strand materials can be uniformly twisted together and easily and firmly connected at low cost.
  • a slit extending to the vicinity of the rotation center is formed as the outer peripheral side of the plate body, and the strand material is inserted into the slit, thereby The strand material is held in the slit. Accordingly, the strand material can be inserted into the slit, and the strand material can be easily held by the holding portion formed by the slit.
  • one of the holding portions includes the slit
  • the other of the holding portion includes a through hole through which the strand material can pass.
  • the other holding portion is made of a through hole
  • the strand material is twisted at the inner edge of the through hole when the strand material is twisted together.
  • the outer periphery of the wire is securely held and can be twisted more uniformly at the overlapping connection.
  • the through hole force of each plate body can also be easily removed from the pair of plate bodies by pulling out the end portion of the strand material and further removing the strand material from the slit in the radial direction. Can be removed and the work efficiency can be improved.
  • the length of the twisting margin of the end of the strand material is made longer than the length of the overlapping connection portion.
  • the end portions of the strand material can be reliably twisted and connected by the overlapping connection portion having a predetermined length.
  • the untwisted excess length portion in the twists is cut and removed. This should not leave unnecessary extra length
  • the strand material can be in a connected state.
  • a plurality of locking portions are provided to non-connection target portions other than the connection target portions to be connected to each other in the strand material.
  • the non-connection target part is moved in a direction away from the connection target part by these hooks.
  • the present invention it is possible to provide a method of manufacturing an annular metal cord, an endless metal belt, and an annular metal cord that are excellent in breaking strength and fatigue resistance and are easy to manufacture. Therefore, when the annular metal cord and the endless metal belt of the present invention are used in an industrial machine, the industrial machine can be made excellent in durability.
  • FIG. 1 is a perspective view of an annular metal cord according to the present embodiment.
  • FIG. 2 is a radial sectional perspective view showing an annular metal cord according to the present embodiment.
  • FIG. 3 is a perspective view showing a state in which a strand material is wound once around the annular core portion included in the annular metal cord according to the present embodiment.
  • FIG. 4 (a) is a radial cross-sectional view showing the annular metal cord according to the present embodiment, and (b) is a side view of the annular metal cord.
  • FIG. 5 is an enlarged perspective view showing a part (connection portion) of the annular metal cord according to the present embodiment.
  • FIG. 6 is an enlarged perspective view of another example showing a part (connection portion) of the annular metal cord according to the present embodiment.
  • FIG. 7 is an enlarged perspective view of another example showing a part (connection portion) of the annular metal cord according to the present embodiment.
  • FIG. 8 is a perspective view showing an example of a manufacturing apparatus for manufacturing the annular metal cord according to the present embodiment.
  • FIG. 9 A solid line indicates that the reel is located outside the ring of the annular core portion at one end of the pendulum motion cycle of the annular core portion, and the reel is disposed at the other end of the cycle of the pendulum motion of the annular core portion.
  • FIG. 7 is a front view of the apparatus of FIG.
  • FIG. 10 Contrary to FIG. 7, the state where the reel is located in the ring of the annular core part at one end of the period of the pendulum movement of the annular core part is indicated by a solid line.
  • FIG. 7 is a front view of the apparatus of FIG. 6 in which the reel is located outside the ring of the annular core portion at the end and is shown by a chain line.
  • FIG. 11 is a conceptual diagram when the annular core portion of the annular metal cord according to the present embodiment is formed.
  • FIG. 12 is a conceptual diagram of the reel moving state when manufacturing the annular metal cord according to the present embodiment as viewed from above.
  • FIG. 13 is a perspective view showing stepwise the connection process when manufacturing the annular metal cord according to the present embodiment.
  • FIG. 14 is a perspective view showing stepwise another connection process when manufacturing the annular metal cord according to the present embodiment.
  • FIG. 15 is a plan view of a disk used for connecting the start end portion and the end end portion of the strand material.
  • FIG. 16 is a perspective view for explaining a method of connecting the start end portion and the end end portion of the strand material.
  • FIG. 17 is a perspective view of the overlapping connection portion of the strand material after connection.
  • FIG. 18 is a perspective view showing a use state of an endless metal belt according to the present embodiment.
  • FIG. 19 is a cross-sectional view showing another example of an annular metal cord.
  • FIG. 2 is a perspective view of an annular metal cord according to the embodiment
  • FIG. 2 is a radial sectional perspective view showing the annular metal cord according to the embodiment
  • FIG. 3 is a perspective view showing a state in which the strand material is wound once around the annular core portion included in the annular metal cord according to the present embodiment.
  • FIG. 4A is a radial sectional view showing the annular metal cord according to this embodiment
  • FIG. 4B is a side view of the annular metal cord according to this embodiment.
  • FIG. 5 is an enlarged perspective view showing a part of the annular metal cord according to the present embodiment.
  • the annular metal cord C1 includes an annular core portion 3 and an outer layer portion 4 that covers the outer peripheral surface of the annular core portion 3.
  • the annular core portion 3 is formed by curving (looping) the strand material 1 with a predetermined diameter by one turn into an annular shape.
  • the outer layer portion 4 around the annular core portion 3 is formed by continuously winding the strand material 1 constituting the annular core portion 3 around the annular core portion 3 with the annular core portion 3 as an axis.
  • the strand material 1 is formed by twisting a plurality of metal strands 5 together.
  • the strand material 1 is centered on one metal strand 5, and six metal strands 5 are S-twisted on the outer peripheral surface of the metal strand 5. Wrapped.
  • the strand material 1 is a geometrically stable seven-strand twist, it is strong and hardly breaks.
  • a high carbon steel containing 0.660 mass% or more of C is used as a material.
  • a material containing 60% by mass or more of C it is possible to make the metal strand 5 into a steel wire with superior fracture strength.
  • the material of the metal wire 5 is not limited to this.
  • the diameter of the metal strand 5 is not less than 0.06 mm and not more than 0.40 mm.
  • the strand material 1 has sufficient rigidity, and the annular core portion 3 can be hardly deformed.
  • the diameter of the metal strand 5 is 0.40 mm or less, the rigidity of the strand material 1 does not increase moderately, and the annular metal cord C1 can be drawn out so that fatigue breakage due to stress does not easily occur.
  • a more preferable diameter of the metal spring 5 is 0.06 mm or more and 0.22 mm or less.
  • the strand material 1 when the strand material 1 is formed with the metal strand 5 having such a diameter, the strand material 1 having appropriate rigidity can be obtained. Therefore, the strand material 1 is wound around the annular core portion 3. It becomes easy to tighten and loosening of the strand material 1 occurs.
  • the strand material 1 is wound around the annular core portion 3 over a plurality of circumferences, and is wound spirally as shown in Figs.
  • the strand material 1 is wound so as not to be twisted. By wrapping without twisting, we can control the looseness of the strand material 1 with the force S.
  • the strand material 1 constituting the outer layer portion 4 is wound six times along the outer peripheral surface of the annular core portion 3. Since the strand material 1 wound around the annular core portion 3 is composed of one strand material 1 continuous with the annular core portion 3, the strand material 1 is wound around the outer peripheral surface of the annular core portion 3 substantially without a gap. Therefore, the outer layer portion 4 covers the annular core portion 3 closely.
  • the cross section of the annular metal cord C1 has a shape in which six strand materials 1 are arranged around the strand material 1 that is the annular core portion 3, as shown in FIG. 4 (a). This cross-sectional shape is the same as the cross-sectional shape when seven strand materials 1 are twisted. In this way, the annular metal cord C1 has a cross-section close-packed twist structure that is advantageous for space saving and has a geometrically stable structure, so it has excellent breaking strength and fatigue resistance, And it will be able to withstand radial deformation!
  • the strand material 1 constituting the outer layer portion 4 is wound around the outer peripheral surface of the annular core portion 3 in a Z-twist. Since the strand material 1 itself is formed by S twist, the annular metal cord C1 is a combination of S twist structure and Z twist structure. Therefore, the twisting direction of the metal wire 5 is opposite to the winding direction of the outer layer portion 4 with respect to the annular core portion 3, and the annular metal cord C1 with less unevenness on the surface appearance that is difficult to twist can be obtained.
  • the strand material 1 constituting the outer layer portion 4 is wound at a predetermined winding angle with respect to the central axis of the annular core portion 3. For this reason, the strand material 1 is wound without any disturbance, and an annular metal cord C1 having a substantially uniform surface state can be obtained.
  • the winding angle ⁇ of the strand material 1 in the X direction that is, the direction in which the central axis of the annular core portion 3 extends is 4.5 degrees or more. It is less than 8 degrees.
  • the winding angle ⁇ is set to 4.5 ⁇ 5 ° or more, loosening of the strand material 1 occurs.
  • the winding start end la and the winding end end lb of the strand material 1 constituting the annular core portion 3 and the outer layer portion 4 are coupled to each other by welding, and The joint portion is covered with the connecting member 7.
  • this connecting member 7 is made of a highly flexible sleeve formed in the shape of a coil panel, this connecting member 7 is the outer periphery of the joint between the start end la and the end lb, which are both ends of the strand material 1. It is fixed with an adhesive so as to cover.
  • the connecting member 7 made of a coil spring-like sleeve is flexibly deformed according to the curved shape of the strand material 1 to protect and reinforce the welded portion of the strand material 1.
  • the connecting member 7 does not hinder the deformation of the strand material 1 at the joint portion, the flexibility of the strand material 1 at the joint portion and other portions can be made equal, and the mechanical properties of the annular metal cord C1 can be made all around. Can be made substantially uniform.
  • the winding start end la and the winding end end lb of the strand material 1 constituting the annular core portion 3 and the outer layer portion 4 are mutually axial. In a state of being stacked along the direction, it is accommodated and connected to the inside of the connecting member 7a formed of a coil spring-like sleeve!
  • the connecting member 7a is made of a highly flexible sleeve formed in a coil spring shape, and has a sleeve inner diameter less than twice the diameter of the strand material 1. Since the coil spring-like sleeve has good flexibility, it is flexibly deformed in accordance with the curved shape of the spirally wound strand material 1 and maintains a close contact state with the connecting portion. Also, the connection part The diameter of the minute is about two strand materials 1, and the connecting portion does not become excessively large. In other words, the mechanical properties of the annular metal cord C1 can be made substantially uniform over the entire circumference.
  • the connecting member 7a has a sleeve inner diameter that is less than twice the diameter of the strand material 1, a force is applied to expand the diameter of the connecting member 7a from the strand material 1 stacked in the connecting member 7a.
  • a reaction force is generated by the elastic force of the connecting member 7a, and a compressive force is applied from the connecting member 7 to the strand material 1 stacked in the connecting member 7a to tighten the strand material 1.
  • the connection member 7a and the strand material 1 and the strand material 1 are firmly connected by a frictional force. Even when tension is applied to this connecting portion, the coil spring-like sleeve tries to extend in the axial direction, so that the inner strand material 1 is further strongly compressed and tightened, so that a stable connection state is maintained. be able to.
  • the connecting members 7 and 7a shown in FIGS. 5 and 6 may have an interval between adjacent spring wires (coil gap), but preferably consist of a close-contact coil spring-like sleeve having no coil gap. . This makes it easier to maintain the tightening force of the strand material 1 even when bending with a smaller radius of curvature than a spring with a coil gap. In addition, since the number of coil turns per unit length can be increased, the strand material 1 can be easily held strongly.
  • the diameter of the spring wire constituting the connecting members 7 and 7a shown in FIGS. 5 and 6 is preferably larger than the diameter of the metal wire 5 constituting the strand material 1.
  • the strength of the spring wire constituting the connecting members 7, 7a is required to some extent.
  • the diameter is larger than the diameter of the wire 5, it is easy to obtain the strength of the connecting member necessary to maintain the connection state.
  • the winding start end la and the winding end of the strand material 1 constituting the annular core portion 3 and the outer layer portion 4 are formed. It may be connected to lb by overlapping connection 7b.
  • the strand materials 1 are twisted equally to each other, and the strand materials 1 are plastically deformed and integrated at the twisted portion.
  • the winding start end portion la and the winding end portion lb of the strand material 1 are twisted together and connected by plastic deformation at the overlapping connection portion 7b, so that separate components for connection are not required. This allows you to As a result, it is possible to suppress the protrusion of the card surface as much as possible, and to make it suitable for use in a drive transmission belt of an industrial machine.
  • the overlapping connecting portion 7b does not hinder the deformation of the strand material 1 in the joint portion, the flexibility of the strand material 1 in the joint portion and other portions can be made equal, and the machine of the annular metal cord C1
  • the target characteristic can be made substantially uniform over the entire circumference.
  • the twisting direction of the overlapping connection portion 7b of the strand material 1 is the same as the twisting direction of the metal strand 5 in the strand material 1.
  • the strand material 1 can be easily plastically deformed with a small number of twists without causing untwisting of the metal strand 5, so that a decrease in strength is suppressed. It is connected and the decrease in fatigue strength is suppressed!
  • the winding start end portion la and the winding end portion lb of the strand material 1 have sufficient strength.
  • the connecting portion (connecting member 7, 7a, overlapping connecting portion 7b) between the start end la and the end end lb shown in FIGS. 5 to 7 is connected to the circular arc of the annular metal cord C1. It is arranged on one side of both sides excluding the inner circumference side and the outer circumference side of the arc, that is, approximately in the middle between the inner circumference and the outer circumference of the annular metal cord C1.
  • the connecting portion is disposed approximately in the middle between the inner periphery and the outer periphery of the annular metal cord C 1 where the action of the tensile force and the compressive force is minimum, even if the annular metal cord C 1 is deformed in the radial direction.
  • the annular metal cord C1 is formed by the force using the connection members 7 and 7a or the overlap after the strand material 1 constituting the outer layer portion 4 is wound around the strand material 1 constituting the annular core portion 3.
  • the connecting portion 7b is formed to connect the start end portion la and the end portion lb of the strand material 1 to each other.
  • FIG. 8 is a perspective view showing an example of a production apparatus for producing the annular metal code C1.
  • the manufacturing apparatus Ml includes a driving unit 40 that rotates the annular core portion 3 in the circumferential direction, A supply unit 50 for the strand material 1 that supplies the strand material 1 wound around the reel 51 to the winding portion of the annular core portion 3 is provided.
  • the supply unit 50 of the strand material 1 is fixed at a predetermined position.
  • the driving unit 40 includes two pinch rollers 42a and 42b that are installed on an arcuate holding arm 41 and connected to a drive motor to rotate the annular core portion 3 in the circumferential direction.
  • the holding arm 41 is provided with a clamp unit 43 surrounding the periphery of the annular core portion 3 on the supply side of the strand material 1 located in the direction opposite to the rotation direction of the annular core portion 3.
  • This clamp unit 43 is composed of two rollers 43a and 43b, which prevents lateral vibration of the annular core part 3, maintains stable circumferential rotation, and positions the winding point of the strand material 1. And high wrapping performance is obtained.
  • the annular core portion 3 is made vertical to suppress lateral vibration and rotate in the circumferential direction.
  • the clamp unit 43 composed of the two rollers 43a and 43b prevents the annular core portion 3 from swinging in the lateral direction, and surrounds the periphery of the annular core portion 3 even in the final finished cord diameter, thereby providing a stable circumferential direction. Since it only needs to maintain the rotation and have the function of fixing the winding point as the twist port of the strand material 1, the groove shape is not particularly limited, and in addition to the U-shaped groove shape, the arc-shaped groove shape and the V-shaped groove shape It may be a groove shape.
  • the holding arm 41 is swingably installed on the stand 44 so that the pendulum is moved by the swing mechanism 60 including the rotary disk 61 and the crank shaft 62 with the clamp unit 43 as a fulcrum. Yes.
  • the annular core portion 3 held by the holding arm 41 is one end of the period of the pendulum motion, and as shown by the solid line in FIG. 9, the reel 51 is positioned outside the ring of the annular core portion 3 and the annular core portion 3 3. Swing at the other end of the period of movement of the pendulum, as shown by the solid line in FIG.
  • a pair of front and rear cassette stands 52 do not obstruct the pendulum movement of the annular core section 3 held by the holding arm 41! /, Keep the distance! /, A reel delivery mechanism is provided at the front end of the cassette stand 52 so as to be opposed to each other with the surface of the annular core portion 3 interposed therebetween.
  • the supply unit 50 includes a reel 51 around which the strand material 1 is wound, and a diameter smaller than the outer diameter of the reel 51.
  • the cassette 53 has a large diameter and at least a cylindrical outer peripheral wall corresponding to the inner width of the reel.
  • the linole 51 is rotatably accommodated in a cassette 53 so as to cover the entire winding surface of the strand material 1, and is formed into a so-called cartridge.
  • An unwinding hole is formed in the outer peripheral wall of the cassette 53, and the strand material 1 is pulled out from the unwinding hole toward the clamp unit 43 at the winding point of the annular core portion 3.
  • the strand material 1 is wound around the linole 51 with a pre-adjusted diameter and is set in the cassette 53 of the supply unit 50.
  • a guide rod that can be removably attached to the cassette 53 and a cassette 53 that is attached to one guide rod are connected to the other guide.
  • a delivery mechanism for transferring to the rod is installed. This delivery mechanism can move the cassette 53 mounted on one guide rod to the other guide rod S by moving the rod in and out by the air cylinder and pushing the center of the cassette 53.
  • the annular metal cord C1 is manufactured through the following steps.
  • the starting end side of one strand material 1 is bent (looped) in an annular shape to form an annular core portion 3.
  • the portion where the two strand materials 1 overlap in the vicinity of the start end la is temporarily fixed by winding an adhesive tape, string, spring or the like.
  • the annular core portion 3 is set in the driving unit 40 of the manufacturing apparatus Ml, and the annular core portion 3 is rotated in the circumferential direction to start winding the strand material 1 around the annular core portion 3.
  • the reel 51 moves back and forth across the core surface of the annular core portion 3 at a predetermined position, and the annular core portion 3 performs a pendulum motion with the clamp unit 43 serving as a winding point of the strand material 1 as a fulcrum.
  • the distance from the reel 51 to the winding point of the strand material 1 is kept almost constant, and the strand material 1 drawn out from the reel 51 does not loosen during winding, and the strand material 1 becomes an annular core under a constant tension. Wound around part 3.
  • the reel 51 is annular from the state shown in FIG. 12 (a) outside the annular core part 3 to the state where the reel 51 is located in the ring of the annular core part 3 shown in FIG. 12 (b).
  • the core 3 is moved in a pendulum manner, and at the position shown in FIG. 12 (b), the reel 51 is transferred to the opposite surface of the annular core 3 shown in FIG. 10 (c).
  • the annular core portion 3 is moved in a pendulum motion from the position shown in FIG. 12 (c) to the state where the reel 51 is positioned outside the ring of the annular core portion 3 shown in FIG.
  • the cycle of returning 51 from the opposite surface of the annular core portion 3 to the starting position of the original surface position in Fig.
  • the annular core portion 3 is moved by the pendulum with respect to the reel 51 as shown in (a) ⁇ (b) ⁇ (c) ⁇ (d) ⁇ (a) in FIG.
  • the reel 51 is moved at a right angle with respect to the core surface of the annular core portion 3 to thereby remove the strand material 1 from the annular core portion 3. It is spirally wound around.
  • connection member 7 After the winding of the strand material 1, the winding end portion lb of the strand material 1 is passed through the connecting member 7 and the temporary fixing of the vicinity of the starting end la is performed. Remove and join the start end la and the end lb by welding. Next, start and end la and end Adhesive is applied to the joint with the end lb, and the connecting member 7 is slid to a position covering the joint. If it does in this way, as FIG. 5 shows, the connection member 7 will be fixed to a coupling
  • connection member 7a In order to form the connecting portion in the form of Fig. 6, after the winding of the strand material 1, the temporary fixing of the portion near the start end la of the strand material 1 is removed, and the start end la and the end lb are axially arranged. It is accommodated inside the connection member 7a and connected so that it is in a state of being stacked along the line.
  • the strand material 1 from one end (right front side in the figure) of the connecting member 7a. Insert the end part lb of the wire and pass it through the inside of the connecting member 7 a until the tip is exposed from the other side end (left back side in the figure).
  • the spring element wire at the other end (the left rear side in the figure) of the connecting member 7a is moved so that the coil gap with the adjacent spring element is widened, and the start end portion la of the strand material is moved into the widened coil gap. Indulge in. At this time, the length to be inserted is longer than that of the connecting member 7a.
  • the side that passes through the inside of the connecting member 7a first may be the start end la, and the side that is inserted between the coil gaps may be the end lb.
  • the start end la that has been squeezed into the coil gap is squeezed along the direction indicated by the arrow, that is, around the connection member 7a. Move along the coil gap so that it passes through to the end opposite to the other side.
  • the non-terminal side of the starting end portion la is inserted into the inside of the end portion of the connecting member 7a, and the terminal end side of the starting end portion la protrudes outward from the coil gap. It is gradually housed inside the connecting member 7a from the side.
  • the non-terminal side of the start end portion la is gradually overlapped with the end portion lb inserted in advance.
  • the start end portion and the end surplus length portions 6a and 6b of the end portion exposed to the outside of the connection member 7a are cut and removed.
  • the strand material 1 at the connecting portion is accommodated inside the connecting member 7a so that the shape is aligned with other portions of the annular metal cord C1, and a substantially uniform structure is obtained in the annular direction.
  • one end portion of the strand material 1 is inserted into the inside of the connection member 7a, and the other end portion is a spring element wire at the end portion of the connection member 7a.
  • the connecting member 7a having a sleeve inner diameter less than twice the diameter of the strand material 1 by inserting between the coil gaps between them and passing along the coil gap to the end opposite to the side where the crimping is performed. It is easy to accommodate the start portion la and the end portion lb of the strand material 1 on the inside.
  • connection member 7a Another method for housing and connecting the start end portion la and the end portion lb inside the connection member 7a will be described.
  • the starting end la of the strand material 1 is passed through the inside of the connecting member 7a from the one side end (the left back side in the figure) of the connecting member 7a to the axial direction of the connecting member 7a. Add to the middle part.
  • the starting end la of the strand material 1 inside the connecting member 7a is connected from the coil gap between adjacent spring strands in the axially intermediate portion of the connecting member 7a as shown in FIG. Pull out to the outside of member 7a. At this time, a sufficient extra length is provided for the starting end 1 a to be pulled out.
  • the end portion lb of the strand material 1 is also axially connected to the connecting member 7a from the other end (right front side in the figure) of the connecting member 7a through the inside of the connecting member 7a in the same manner as the starting end la. Add to the middle part. Further, the terminal end portion 1b of the strand material 1 inside the connecting member 7a is pulled out to the outside of the connecting member 7a as shown in FIG. 14 (a) from the coil gap from which the starting end portion la is pulled out. At this time, leave enough extra length for the end part lb to be pulled out.
  • the start end la and the end end lb each inserted in the coil gap are respectively along the direction indicated by the arrows, that is, around the connection member 7a, opposite to the side where the insertion is performed. It moves along the coil gap so as to pass to the end on the side.
  • the starting end la and the terminal end lb are gradually accommodated inside the connecting member 7a from the central position of the connecting member 7a toward both ends.
  • the start end la and the end end lb are rotated and moved along the coil gap, and when reaching the end opposite to the squeezed side, as shown in FIG. 14 (b) Then, the entire length of the connecting member 7a is accommodated inside the connecting member 7a with the start end la and the end lb overlapping in the axial direction. As a result, the starting end portion la and the terminal end portion lb are firmly connected by the compressive force of the connecting member 7a.
  • the start end portion and the end surplus length portions 6a and 6b of the end portion exposed to the outside of the connection member 7a are cut and removed.
  • the strand material 1 at the connecting portion is accommodated inside the connecting member 7a so that the shape is aligned with other portions of the annular metal cord C1, and a substantially uniform structure is obtained in the annular direction.
  • connection method of the form shown in FIG. 14 the start end la and the end end lb of the strand material 1 are respectively inserted from both sides of the connection member 7a, and the axial intermediate portion of the connection member 7a is inserted.
  • a connecting member that has a sleeve inner diameter that is less than twice the diameter of the strand material 1 by pulling out from the coil gap between the spring strands of the wire and passing it through the coil gap to the end opposite to the crimped side. It is easy to store the start end la and the end end lb of the strand material 1 in the inner side of 7a.
  • connection portion in the form of FIG. 5 or FIG. 6, the strand material 1 has the end portion on the outer peripheral layer 4 side inclined with respect to the start end portion la on the annular core portion 3 side. Since the connecting members 7 and 7a are made of a coil spring-like sleeve and have excellent flexibility, the connecting members 7 and 7a can be easily attached to the coupling portion.
  • the outer layer portion 4 can be provided around the annular core portion 3 by winding the strand material 1 around the annular core portion 3 and joining the start end portion la and the end portion lb.
  • the connecting portion in the form shown in FIG. 7 the start end la and the end end lb of the strand material 1 are connected using two discs (plate bodies) 71 shown in FIG.
  • This circular plate 71 has a through hole 73 slightly larger in diameter than the diameter of the strand material 1 at an eccentric position close to the center thereof, and a strand is formed in the through hole 73. Material 1 can be passed through.
  • a slit 74 that is open to the outer periphery of the disc 71 is formed up to the center of the disc 71. The bottom of the slit 74 is disposed at the center of the disc 71. .
  • the slit 74 has a width that is slightly larger than the diameter of the strand material 1, and the strand material 1 can be inserted into the slit 74 with an opening partial force on the outer peripheral side of the disc 71.
  • the formation direction of the slit 74 is bent in the vicinity of the bottom portion of the slit 74, thereby making it difficult for the strand material 1 disposed in the vicinity of the bottom portion to move outward in the radial direction of the disk 71. That is, the strand material 1 can be easily held at the bottom of the slit 74.
  • a plurality of pins or small-diameter rollers are hooked to non-connection target parts other than the connection target parts to be connected to each other in the strand material 1, and a locking portion composed of these pins or small-diameter rollers is attached to the strand material.
  • the start end 1a and the end end lb are evenly twisted with each other, and the twisted overlapping connection 7b Thus, it is plastically deformed to be integrated and firmly connected.
  • the strand materials 1 can be easily twisted uniformly between the circular plates 71 at a low cost to be plastically deformed and firmly connected. Further, in the circular plate 71, the through-hole 73 and the slit 74 are used as the holding portion for the strand material 1, so the slit 74 strand material 1 is inserted, and the strand material 1 is inserted into the holding portion including the slit 74. In addition, when the strand material 1 is inserted and held in the through-hole 73, when the strand material 1 is twisted, the outer periphery of the strand material 1 is formed at the inner edge of the through-hole 73. It can be reliably held and can be twisted more uniformly.
  • the outer layer portion 4 can be provided around the annular core portion 3 by winding the strand material 1 around the annular core portion 3 and joining the start end portion la and the end portion lb. .
  • the annular core portion 3 and the outer layer portion 4 described above may be subjected to a low temperature annealing treatment. More specifically, heat treatment is performed on the annular core portion 3 and the outer layer portion 4 in a pressure chamber in which argon is introduced in a vacuum or a reduced pressure atmosphere. The temperature during the heat treatment is 70 ° C 380 ° C. Thereby, the internal strain of the metal wire 5 can be removed, and an annular metal cord C1 having no strain can be obtained.
  • an annular metal cord C1 When such an annular metal cord C1 is used for, for example, an endless metal belt of a continuously variable transmission described later, an endless metal belt that rotates without meandering can be obtained. Endless metal belts that rotate without meandering do not wear due to contact with surrounding parts, so they can maintain high performance over a long period of time.
  • the low-temperature annealing treatment is preferably performed before applying an adhesive for adhering the connecting member 7 to the joint portion between the start end portion la and the end portion lb.
  • the strand material 1 formed by twisting seven metal strands 5 is wound around the annular core portion 3 and a plurality of spirals around the annular core portion 3.
  • the outer layer part 4 covering the outer peripheral surface of the annular core part 3 is formed, and the annular core part 3 and the outer layer part 4 are formed of the continuous strand material 1, so that the annular metal cord C1 is made to be durable.
  • the annular metal cord C1 is completely broken as compared with the case where a plurality of strand materials are joined together at one place in the circumferential direction as in the prior art. That is, since the annular core portion 3 is formed with the strand material 1 force and the strand material 1 is continuously wound around the annular core portion 3 with the force, the annular metal cord having a high breaking strength can be obtained. Furthermore, since the external force applied to the annular metal cord C1 can be received by the continuous annular core portion 3 and the outer layer portion 4, the applied external force is distributed throughout the annular metal cord C1 and the load is concentrated locally. You can avoid that.
  • the strand material 1 constituting the annular core portion 3 is continuously wound over 6 turns instead of winding a plurality of strand materials 1, so that the strand material 1 is 1
  • the number of joints is reduced as compared with the case where a plurality of strand materials 1 are used, so that it is possible to suppress a decrease in the breaking strength of the annular metal cord C1 and to facilitate the manufacture.
  • the strand material 1 of the outer layer portion 4 is wound at a predetermined winding angle, it is possible to obtain an annular metal cord C1 having a substantially uniform surface state in which the strand material 1 is not disturbed. Since such an annular metal cord C1 is uniformly applied with an external force, it is possible to further suppress a decrease in breaking strength.
  • the diameter of the metal spring 5 is 0.06 mm or more and 0.40 mm or less, or 0.06 mm or more and 0.22 mm or less.
  • the strand material 1 can have an appropriate rigidity, The strand material 1 can have good fatigue resistance.
  • annular core portion 3 and the outer layer portion 4 are formed from a single strand material 1 that is continuous.
  • the strand material 1 has a force S that is a S strand of a metal strand 5, and the winding of the strand material 1 that becomes the outer layer portion 4 around the annular core portion 3 is a Z twist.
  • the surface appearance has few irregularities and is difficult to twist, and the strand material 1 of the outer layer portion 4 with respect to the annular core portion 3 It is possible to obtain an annular metal cord CI that hardly causes loosening.
  • the winding angle of the strand material 1 with respect to the central axis of the annular core portion 3 is not less than 4.5 degrees and not more than 13.8 degrees. In this case, the winding work of the strand material 1 becomes easy. Further, the force S is used to obtain an annular metal cord C1 having an appropriate elongation and no loosening of the strand material 1.
  • the strand material 1 to be the outer layer portion 4 is wound around the outer peripheral surface of the annular core portion 6 for six turns.
  • the annular metal cord C1 can be made geometrically stable. As a result, it is possible to reliably obtain an annular metal cord C1 that has excellent breaking strength and fatigue resistance and can withstand radial deformation.
  • the annular core portion 3 and the outer layer portion 4 are subjected to a low-temperature annealing treatment.
  • the internal distortion of the metal wire 5 can be removed.
  • the metal strand 5 from which the internal strain is removed it is possible to reliably obtain the annular metal cord C1 that is more difficult to break.
  • the start end portion 2a and the end end portion 2b of the strand material 1 are combined using the connection member 7, and the connection portion is protected by the connection member 7. In this case, the joined portion of the strand material 1 is more ruptured. Further, since the connecting member 7 is made of a coil panel-like sleeve, it is possible to facilitate the mounting, and therefore, it is easy to connect the start end portion 2a and the end end portion 2b of the strand material 1.
  • connection member 7a formed of a coil spring-like sleeve
  • Bonding between the ends of the strand material 1 is easy.
  • the coil spring-like sleeve has good flexibility, it is flexibly deformed according to the curved shape of the spirally wound strand material 1 to maintain the tight contact state with the connecting portion, and the strand in the connecting portion.
  • the connecting member 7a does not hinder the deformation of the material 1. That is, the mechanical characteristics of the annular metal cord C1 can be made substantially uniform over the entire circumference.
  • the connecting member 7a has a sleeve inner diameter that is less than twice the diameter of the strand material 1, a compressive force is applied from the connecting member 7a to the strand material 1 stacked in the connecting member 7a, so that the connecting member 7a is firmly connected.
  • the connection part Even when tension is applied to the connection part, the coil spring-like sleeve tries to extend in the axial direction, so that the strand Since the material 1 is further compressed and tightened, a stable connection is obtained.
  • both ends of the strand material 1 are overlapped with each other at the overlapping connection portion 7b and connected by plastic deformation, so that a separate part for connection is not necessary.
  • the protrusion of the cord surface can be suppressed as much as possible, and the cord can be suitably used for a drive transmission belt of an industrial machine.
  • FIG. 18 is a schematic perspective view showing a use state of the endless metal belt according to the present embodiment.
  • the endless metal belt B1 is used for a speed reducer 10 used in precision equipment and other industrial machines as shown in FIG. 18, for example.
  • the endless metal belt B1 is composed of three annular metal cords C1 arranged in parallel, and bears power transmission between the small-diameter driving pulley 12 and the large-diameter driven pulley 14.
  • the drive shaft of the drive motor 16 is connected to the rotation center of the drive pulley 12! / Circumferential grooves are formed in the outer periphery of the driving pulley 12 and the driven pulley 14 to stably lay each annular metal cord C1, and the endless metal belt B 1 is connected to the driving pulley 12 and the driven pulley.
  • the rotational force of the driving pulley 12 is transmitted to the driven pulley 14 via the endless metal belt B1.
  • the rotational speed of the driving pulley 12 is reduced by the driven pulley 14, and the torque of the driving pulley 12 is increased by the driven pulley 14.
  • the driven pulley 14 is axially connected to, for example, another pulley (not shown) and transmits power.
  • the cyclic metal cord C1 has a very high breaking strength.
  • the annular metal cord C1 since the annular metal cord C1 has a substantially circular cross section, it is more resistant to twisting than a rectangular cross section. Therefore, compared to the case where a flat belt is used as the endless metal belt, the endless metal belt B1 constituted by using a plurality of annular metal cords C1 is extremely excellent in bending resistance and durability.
  • the present invention can be modified in various ways without being limited to the above-described embodiment.
  • an extra length portion is formed on one end side of the strand material 1.
  • a part of the outer layer part 4 may be constituted by this extra length part. good.
  • the force in which the strand material 1 is wound six times along the outer peripheral surface of the annular core portion 3 to form the outer layer portion 4 is referred to as five-turn winding. Good.
  • a loop for one round is formed with the strand material 1, and then wound around the circumference for two rounds to form the annular core portion 3 in which the strand material 1 is wound three times. After that, you may continue to wind 7 to 9 laps. Also in the configuration shown in FIG. 19, the outer layer portion 4 tightly covers the annular core portion 3, so that a geometrically stable structure is obtained.
  • the direction in which the strand material 1 of the outer layer part 4 is wound is preferably opposite to the direction of the annular core part 3, but in the case of the same direction, the winding of the annular core part 3 is performed.
  • the strand material 1 of the outer layer portion 4 becomes the strand of the annular core portion 3. It is possible to prevent the material 1 from falling into the twisting line.
  • the outer peripheral surface of the annular core portion 3 is covered with one layer of the strand material 1.
  • a plurality of layers of the strand material 1 may cover the outer peripheral surface of the annular core portion 3.
  • the strand material 1 is wound around the outer peripheral surface of the annular core portion 3 six times to form the first layer, and then the one layer The second layer is formed by winding 12 strands of strand material 1 around the outer circumference of the eye.
  • the winding direction of 12 turns corresponding to the second layer is preferably opposite to the winding direction of 6 turns corresponding to the first layer, but the winding pitch of the first and second layers is preferably If the difference is increased, the direction may be the same. It is important to devise the winding direction and pitch in this way in order to obtain good winding properties and to obtain an outer surface with less unevenness.
  • the strand material 1 is made of S twist, and the strand material 1 of the outer layer portion 4 is wound around the annular core portion 3 by Z twist.
  • Z twisting and winding of the strand material 1 of the outer layer part 4 around the annular core part 3 can be performed by firing with S twisting.
  • the annular metal cord C1 of the present embodiment has a substantially circular cross section, but the cross section may be a flat shape.
  • a substantially circular annular metal The code CI will be deformed by pressing it.
  • the contact area between the endless metal belt B1 including the annular metal cord C1 and the driving pulley 12 and the driven pulley 14 can be increased.
  • the power S can be transmitted more efficiently between the driving pulley 12 and the driven pulley 14.
  • the flatness is preferably 66% or more.
  • the force S is such that three annular metal cords C1 are stretched over the driving pulley 12 and the driven pulley 14 respectively, and the annular metal cord is suspended.
  • the number of C1 is not limited to this.
  • the number of annular metal cords C1 can be adjusted according to the required bending resistance and durability.
  • the annular metal cord is applied to an endless metal belt that transmits power in a reduction gear.
  • the annular metal cord according to the present invention is an endless metal belt that is used other than the reduction gear. It can also be applied to metal belts.
  • endless metal belts that transmit power between paper feed rollers endless metal belts that perform direct drive of single-axis robots, driving XY table mechanisms and three-dimensional carriage driving Endless metal belts, endless metal belts that are responsible for precision drive in optical instruments and inspection machines, measuring instruments, endless metal belts that are responsible for power transmission between the driving pulley and driven pulley in a continuously variable transmission of an automobile, etc. It is applicable to.

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Abstract

La présente invention concerne un câble métallique annulaire et une courroie métallique sans fin qui présentent une excellente résistance à la rupture et qui se produisent facilement, ainsi qu'un procédé de fabrication du câble métallique annulaire. Le câble métallique annulaire (C1) est formé comme suit : six fils métalliques (5) sont torsadés en un toron (1) qui est enroulé selon un diamètre annulaire prédéterminé. Le point de départ et le point d'arrivée du toron sont fixés provisoirement afin de former un noyau annulaire (3). Le toron (1), qui s'étend en continu depuis le noyau annulaire (3), est enroulé de façon hélicoïdale autour des six nappes du noyau annulaire (3) pour former une couche externe (4) couvrant la surface externe du noyau annulaire (3). Puis, les points de départ et d'arrivée du toron (1) sont raccordés à l'aide d'un élément raccord (7).
PCT/JP2007/067337 2006-09-05 2007-09-05 Câble métallique annulaire, courroie métallique sans fin et procédé de fabrication de câble métallique annulaire WO2008029857A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/160,207 US20090088278A1 (en) 2006-09-05 2007-09-05 Annular metal cord, endless metal belt, and annular metal cord manufacturing method
DE112007002022T DE112007002022T5 (de) 2006-09-05 2007-09-05 Ringförmiges Metallseil, Metall-Endlosgurt und Herstellungsverfahren für ein ringförmiges Metallseil

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
JP2006240166 2006-09-05
JP2006-240166 2006-09-05
JP2007050569 2007-02-28
JP2007-050569 2007-02-28
JP2007053062 2007-03-02
JP2007-053062 2007-03-02
JP2007116047 2007-04-25
JP2007-116047 2007-04-25
JP2007148299A JP2008291410A (ja) 2006-09-05 2007-06-04 環状金属コード、無端金属ベルト及び環状金属コードの製造方法
JP2007-148299 2007-06-04

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WO2008029857A1 true WO2008029857A1 (fr) 2008-03-13

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010109735A1 (fr) * 2009-03-25 2010-09-30 栃木住友電工株式会社 Câble métallique annulaire, courroie métallique sans fin et procédé pour produire un câble métallique annulaire
US8250844B2 (en) * 2008-10-09 2012-08-28 W. C. Heraeus Gmbh Helically-wound cable and method
CN104662224A (zh) * 2012-08-03 2015-05-27 安塞乐米塔尔金属线法国公司 通过拼接来生产闭环线缆的方法、相应的线缆及其用途
WO2016002566A1 (fr) * 2014-07-03 2016-01-07 住友電気工業株式会社 Talon de câble et son procédé de fabrication
JP7048123B1 (ja) * 2021-04-21 2022-04-05 章一 大橋 ケーブルビード、ケーブルビードを用いたタイヤ、ケーブルビード製造方法及びケーブルビード製造装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01272833A (ja) * 1988-04-20 1989-10-31 Kanai Hiroyuki 紡機用バルーンコントロールリング
JPH09273088A (ja) * 1996-04-03 1997-10-21 Yokohama Rubber Co Ltd:The ケーブルビードワイヤー
JP2005238997A (ja) * 2004-02-26 2005-09-08 Fuji Seiko Kk タイヤ用ケーブルビードにおける巻線の結合部材、タイヤ用ケーブルビード及び結合方法
JP2005280606A (ja) * 2004-03-30 2005-10-13 Fuji Seiko Kk タイヤ用ケーブルビード

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01272833A (ja) * 1988-04-20 1989-10-31 Kanai Hiroyuki 紡機用バルーンコントロールリング
JPH09273088A (ja) * 1996-04-03 1997-10-21 Yokohama Rubber Co Ltd:The ケーブルビードワイヤー
JP2005238997A (ja) * 2004-02-26 2005-09-08 Fuji Seiko Kk タイヤ用ケーブルビードにおける巻線の結合部材、タイヤ用ケーブルビード及び結合方法
JP2005280606A (ja) * 2004-03-30 2005-10-13 Fuji Seiko Kk タイヤ用ケーブルビード

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8250844B2 (en) * 2008-10-09 2012-08-28 W. C. Heraeus Gmbh Helically-wound cable and method
WO2010109735A1 (fr) * 2009-03-25 2010-09-30 栃木住友電工株式会社 Câble métallique annulaire, courroie métallique sans fin et procédé pour produire un câble métallique annulaire
CN104662224A (zh) * 2012-08-03 2015-05-27 安塞乐米塔尔金属线法国公司 通过拼接来生产闭环线缆的方法、相应的线缆及其用途
US10344427B2 (en) 2012-08-03 2019-07-09 Arcelormittal Wire France Method for production of a closed-loop cable by splicing
WO2016002566A1 (fr) * 2014-07-03 2016-01-07 住友電気工業株式会社 Talon de câble et son procédé de fabrication
JP2016014207A (ja) * 2014-07-03 2016-01-28 住友電気工業株式会社 ケーブルビードおよびその製造方法
JP7048123B1 (ja) * 2021-04-21 2022-04-05 章一 大橋 ケーブルビード、ケーブルビードを用いたタイヤ、ケーブルビード製造方法及びケーブルビード製造装置
WO2022224794A1 (fr) * 2021-04-21 2022-10-27 章一 大橋 Talon de câble, pneu utilisant des talons de câble, procédé de fabrication d'un talon de câble et dispositif de fabrication d'un talon de câble

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