WO2017073771A1 - Fil machine pour élément élastique, et élément élastique associé - Google Patents

Fil machine pour élément élastique, et élément élastique associé Download PDF

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Publication number
WO2017073771A1
WO2017073771A1 PCT/JP2016/082172 JP2016082172W WO2017073771A1 WO 2017073771 A1 WO2017073771 A1 WO 2017073771A1 JP 2016082172 W JP2016082172 W JP 2016082172W WO 2017073771 A1 WO2017073771 A1 WO 2017073771A1
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Prior art keywords
wire
elastic member
core material
spiral tube
winding
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PCT/JP2016/082172
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English (en)
Japanese (ja)
Inventor
和彦 許斐
勝 今村
孝充 佐野
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日本発條株式会社
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Publication of WO2017073771A1 publication Critical patent/WO2017073771A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • F16F1/06—Wound springs with turns lying in cylindrical surfaces
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/14—Torsion springs consisting of bars or tubes

Definitions

  • the present invention relates to an elastic member wire and an elastic member.
  • an elastic member wire that can reduce the weight of an elastic member such as a coil spring or a torsion bar, a hollow wire, a titanium wire having a low specific gravity, a carbon fiber having a lighter weight effect than the above-mentioned wire, etc.
  • CFRP wire for elastic members formed using reinforcing fibers (see, for example, Patent Documents 1 and 2).
  • Patent Document 1 discloses a flexible core wire, a reinforcing fiber layer wound so that the angle of the core wire with respect to the axial direction is 15 ° to 80 °, or ⁇ 80 ° to ⁇ 15 °, and a core wire.
  • a coil spring using a wire for an elastic member made of a thermosetting resin matrix that joins a reinforcing fiber layer is described.
  • Patent Document 2 aluminum is used as a core material, and a wire for an elastic member provided with a CFRP layer formed by winding a mesh-like reinforcing fiber in which a plurality of carbon fibers are knitted around the outer periphery of the aluminum core material. Is disclosed.
  • JP 58-28029 A Japanese Utility Model Publication No. 55-45076
  • This invention is made in view of the above, Comprising: It aims at providing the wire for elastic members and an elastic member which can improve a moldability and intensity
  • an elastic member wire according to the present invention is an elastic member wire for producing an elastic member, and is a spiral formed using a long member.
  • An FRP layer that covers the outer surface of the core material, and the first and second tube bodies are wound with respect to the central axis of the elastic member wire.
  • the reinforcing fibers located in the innermost layers of the second tube body and the FRP layer are opposite to each other, and the winding directions of the adjacent reinforcing fibers are mutually relative to the central axis of the elastic member wire. It is the opposite direction.
  • the first and second tube bodies each have a constant angle between the winding center axis and the winding direction.
  • the first and second tube bodies are each formed by spirally winding a band-shaped member and formed along the longitudinal direction. Is smaller than the width of the band-shaped member.
  • the first and second tube bodies are each formed of steel, an alloy mainly composed of aluminum, magnesium, or titanium, or FRP. It is characterized by being.
  • the first and second tube bodies may have a rectangular shape, a circular shape, an elliptical shape, or a polygonal shape formed by the outer circumference viewed from the longitudinal direction of each member. It is characterized by making.
  • the elastic member wire according to the present invention is characterized in that, in the above invention, the long member has a rectangular, circular, elliptical or polygonal cross section perpendicular to the longitudinal direction.
  • the wire for an elastic member according to the present invention is provided with a resin core provided in the first tube body and wound around the first tube body in the above invention. It is characterized by.
  • the wire for an elastic member according to the present invention is characterized in that, in the above invention, the wire is provided using an insulating material and includes an electrolytic corrosion prevention portion provided between the core material and the reinforcing fiber. To do.
  • the wire for an elastic member according to the present invention is the above-described invention, wherein the reinforcing fiber is wound at least in the direction in which the reinforcing fiber on the outer surface is wound around the core material according to a load applied from the outside. It is the direction along the direction of the tensile load applied to the wire for elastic members.
  • the FRP layer includes a thermosetting resin for fixing the reinforcing fibers
  • the second tube body has the thermosetting on an outer surface. The surface treatment which improves adhesiveness with adhesive resin is given.
  • the wire for an elastic member according to the present invention is characterized in that, in the above invention, the reinforcing fibers are continuous along a circumferential direction with respect to the core material.
  • the elastic member according to the present invention is characterized by using the wire for an elastic member according to the above invention.
  • the elastic member according to the present invention is a torsion bar, a stabilizer or a frame for automobiles.
  • FIG. 1 is a schematic diagram showing a configuration of a wire for an elastic member according to an embodiment of the present invention.
  • FIG. 2 is a diagram for explaining the configuration of the elastic member wire according to the embodiment of the present invention.
  • FIG. 3A is a schematic diagram illustrating a configuration of a main part of a wire for an elastic member according to an embodiment of the present invention.
  • FIG. 3B is a schematic diagram showing a configuration of a main part of the wire for an elastic member according to the embodiment of the present invention.
  • FIG. 4 is a diagram illustrating a method for manufacturing the elastic member wire according to one embodiment of the present invention.
  • Drawing 5 is a figure explaining the manufacturing method of the wire for elastic members concerning one embodiment of the present invention.
  • FIG. 1 is a schematic diagram showing a configuration of a wire for an elastic member according to an embodiment of the present invention.
  • FIG. 2 is a diagram for explaining the configuration of the elastic member wire according to the embodiment of the present invention.
  • FIG. 3A is a schematic diagram
  • FIG. 6 is a diagram illustrating a method for manufacturing the elastic member wire according to the embodiment of the present invention.
  • FIG. 7 is a schematic diagram showing the configuration of the elastic member wire according to the modification of the embodiment of the present invention.
  • FIG. 8 is a schematic diagram for explaining the porosity according to the embodiment of the present invention.
  • FIG. 1 is a schematic diagram showing a configuration of a wire for an elastic member according to an embodiment of the present invention.
  • FIG. 2 is a diagram illustrating the configuration of the elastic member wire according to the embodiment of the present invention, and is a view of the elastic member wire shown in FIG. 1 as viewed from the longitudinal direction.
  • the wire 1 for elastic members shown in FIGS. 1 and 2 is used as an elastic member, for example, a stabilizer for a car, a torsion bar or a frame, which is formed by winding a fiber around a core material and bending the fiber to bend.
  • the elastic member wire 1 includes a core material 10 formed using a metal, an alloy, or a fiber reinforced plastic (FRP), and a plurality of reinforcing fibers wound around the core material 10. And an FRP layer 11 to be covered.
  • the elastic member wire 1 may be simply referred to as a wire.
  • the core material 10 is formed using a long belt-like member.
  • the band-shaped member is described as having a rectangular (rectangular) cross section orthogonal to the longitudinal direction.
  • the band-shaped member has a circular shape, an elliptical shape, or a polygonal shape (including a square shape). There may be.
  • the core material 10 demonstrates as what the shape which outer periphery sees from the center axis
  • the core member 10 includes an inner peripheral spiral tube 10a that is spirally wound, and an outer peripheral spiral tube 10b that is formed by spirally winding a band-shaped member and covers the inner peripheral spiral tube 10a.
  • Examples of the material constituting the inner peripheral side spiral tube 10a and the outer peripheral side spiral tube 10b include a lightweight alloy such as an alloy mainly composed of aluminum, magnesium, or titanium, and FRP. Further, since the spiral tube is lighter than the solid core, a heavy metal such as a steel material or a hard steel wire can be used.
  • the shapes of the inner circumferential spiral tube 10a and the outer circumferential spiral tube 10b will be described later.
  • the inner peripheral side spiral tube 10a and the outer peripheral side spiral tube 10b may be continuous at one end side, that is, may be formed by using one strip-shaped member.
  • the inner circumferential spiral tube 10a and the outer circumferential spiral tube 10b are each formed by an angle (hereinafter, also referred to as a winding angle) between a winding central axis (for example, the central axis N1 shown in FIG. 2) and a winding direction. ) Are wound at different angles.
  • the winding angle of the inner circumferential spiral tube 10a is an angle in the range of 20 ° or more and 85 ° or less upward with respect to the central axis N1 when viewed from the direction orthogonal to the central axis N1, the outer circumferential spiral tube 10b.
  • “upward” and “downward” refer to the direction in which the member extends by winding with respect to the central axis N1 extending in a predetermined direction, for example.
  • the inner circumferential side spiral tube 10a and the outer circumferential side spiral tube 10b may be wound at a certain angle, although the angle formed by the central axis N1 and the direction of partial winding may be different. Is preferred.
  • the “certain angle” here includes an error of a winding angle in manufacturing.
  • the core material 10 may be subjected to rust prevention treatment in the inner circumferential spiral tube 10a and the outer circumferential spiral tube 10b.
  • a rust prevention treatment is performed by applying a rust preventive agent to the surfaces of the inner peripheral spiral tube 10a and the outer peripheral spiral tube 10b.
  • the outer periphery may have the coating layer which consists of resin which consists of insulating materials, or FRP.
  • the core material 10 may be provided with a resin core inside the inner circumferential spiral tube 10a, or may be filled with resin inside the inner circumferential spiral tube 10a.
  • a lid that closes the opening may be provided. Thereby, the entrance of foreign matter into the inner peripheral spiral tube 10a can be prevented.
  • the FRP layer 11 is a layer formed by winding a plurality of reinforcing fibers 12 around the core material 10.
  • the reinforcing fiber 12 at least one fiber selected from carbon fiber, glass fiber, an aramid fiber that is an aromatic polyamide fiber, and a basalt fiber that is a basalt fiber is used.
  • the FRP layer 11 At least some of the reinforcing fibers 12 (adjacent reinforcing fibers) are fixed to each other with a thermosetting resin. That is, the FRP layer 11 includes the plurality of reinforcing fibers 12 described above and a thermosetting resin that fixes the reinforcing fibers 12 to each other.
  • the thermosetting resin include resins that are cured by heat at a temperature lower than the melting point of the inner peripheral spiral tube 10a, the outer peripheral spiral tube 10b, and the reinforcing fibers 12, such as epoxy resins.
  • a thermoplastic resin may be used instead of the thermosetting resin.
  • the reinforcing fiber 12 in the FRP layer 11 may be one in which fibers are wound around the core material 10 one by one, or a plurality of fibers are bundled and a plurality of bundles are wound around the core material 10. In any winding, the winding direction of each fiber is aligned. Further, a fiber bundle in the form of a sheet may be provided on the outer surface of the core material 10 with the longitudinal direction of the fibers aligned. One or more reinforcing fibers are wound around the radial direction of the wire.
  • the reinforcing fiber 12 is continuous from one end to the other end of the wire in terms of improving the strength of the elastic member wire 1 (FRP layer 11).
  • the reinforcing fiber 12 is discontinuous, a load applied from the outside cannot be borne by the entire wire, and stress concentrates on the discontinuous portion and tends to be a starting point of the wire.
  • each reinforcing fiber 12 extends spirally from one end to the other end of the wire and is continuous along the circumferential direction with respect to the core material 10.
  • the winding direction in which the reinforcing fiber 12 located in the innermost layer of the FRP layer 11 among the reinforcing fibers 12 is wound around the core material 10 (the direction in which the reinforcing fiber 12 is wound: the winding direction Y1 in FIG. 1) and the center.
  • the angle formed by the axis N1 (hereinafter also referred to as a winding angle or a winding angle) is FRP among the reinforcing fibers 12 when the winding angle of the outer circumferential spiral tube 10b is in the range of 20 ° to 85 °.
  • the reinforcing fiber 12 located in the innermost layer of the layer 11 is wound so that the winding angle of the reinforcing fiber 12 is an angle in a range larger than ⁇ 90 ° and smaller than 0 °, desirably around ⁇ 45 °.
  • the winding angle of the outer peripheral side spiral tube 10b is in the range of ⁇ 85 ° or more and ⁇ 20 ° or less
  • the winding of the reinforcing fiber 12 located in the innermost layer of the FRP layer 11 among the reinforcing fibers 12 is wound. Winding is performed so that the angle is in the range of greater than 0 ° and less than 90 °, preferably around 45 °.
  • stacked on the radial direction (direction orthogonal to the central axis N1) of the elastic member wire 1 may be a mutually reverse direction ( ⁇ (theta)). However, it may have a stitch shape.
  • ⁇ ⁇ winding directions of the reinforcing fibers 12 are opposite to each other ( ⁇ ⁇ )
  • the winding directions of the reinforcing fibers 12 are opposite to each other ( ⁇ ⁇ )
  • one layer side is wound at a winding angle in a range larger than 0 ° and smaller than 90 °, the other is ⁇ 90 °. Winding is performed so that the winding angle is larger and smaller than 0 °.
  • FIG. 3A and FIG. 3B are schematic views showing the configuration of the main part of the elastic member wire according to one embodiment of the present invention, and when the torsional stress is applied to the elastic member wire 1, the surface of the wire It is a figure explaining the load added to.
  • the elastic members Reversed stressed, because the reverse rotation of the torsional stress is applied to the load F 1, F 2, and the load F T tensile, tensile perpendicular to the tensile load F T A tensile load in two directions of load is applied.
  • elastic member direction is applied is pulsating stresses that in one direction of twist is tensile load F T becomes only one direction.
  • the inner peripheral side spiral tube 10a, the outer peripheral side spiral tube 10b, and the reinforcing fiber 12 are adjacent to each other or between the outer peripheral side spiral tube 10b and the reinforcing fiber 12, the FRP layer.
  • the winding directions of the reinforcing fibers 12 located in the innermost layer of 11 need only be different and cross each other.
  • the inner circumferential spiral tube 10a and the outer circumferential spiral tube 10b intersect with each other, a load applied from different directions, for example, a load applied from a certain direction and a load applied from the opposite direction is applied.
  • the outer periphery side spiral tube 10b is deformed in the direction in which the diameter is expanded, thereby suppressing the diameter reduction of the FRP layer 11, or the inner periphery side spiral tube 10a is deformed in the direction in which the diameter is expanded.
  • the diameter reduction of the side spiral tube 10b can be suppressed, and the diameter reduction of the FRP layer 11 can be suppressed via the outer peripheral side spiral tube 10b.
  • the diameter (outer diameter) formed by the outer periphery of the core member 10 is R 1
  • the diameter formed by the outer periphery of the FRP layer 11, that is, the outer diameter of the elastic member wire 1 is R 2. (See FIG. 2), it is preferable that 0 ⁇ R 1 / R 2 ⁇ 0.8 is satisfied in terms of reducing the weight of the elastic member wire 1.
  • the elastic member wire 1 has a wire rigidity of 10 GPa or more and 50 GPa or less as strength when the elastic member wire 1 is used as a wire for an automobile stabilizer, torsion bar or frame,
  • the static torsional strength is preferably 450 MPa or more and 2000 MPa or less.
  • FIGS. 4 to 6 are views for explaining a method of manufacturing the elastic member wire according to the embodiment of the present invention.
  • the outer peripheral spiral tube 10b is wound around the inner peripheral spiral tube 10a shown in FIG. At this time, the winding direction Y11 of the inner circumferential spiral tube 10a and the winding direction Y12 of the outer circumferential spiral tube 10b are different from each other (see FIG. 6). In the present embodiment, it is assumed that the directions are opposite to each other ( ⁇ ⁇ with respect to the central axis of each spiral tube).
  • the core material 10 can be obtained by winding the outer circumferential spiral tube 10b around the inner circumferential spiral tube 10a (see FIG. 5).
  • the inner peripheral spiral tube 10a and the outer peripheral spiral tube 10b are each formed by spirally winding a band-shaped member, and the interval between the band-shaped members formed along the longitudinal direction (axial direction of winding) is It is preferable from the viewpoint of improving the strength of the core material 10 that it is smaller than the width of the belt-like member.
  • the inner peripheral spiral tube 10a and the outer peripheral spiral tube 10b are separated from each other, but are separated for the sake of explanation, and in fact, both overlap in the radial direction orthogonal to the central axis. The parts are in contact.
  • the outer peripheral diameter of the inner peripheral spiral tube 10a before assembly may be larger than the inner peripheral diameter of the outer peripheral spiral tube 10b.
  • the inner circumferential spiral tube 10a is fastened by the outer circumferential spiral tube 10b during assembly.
  • the outer peripheral side spiral tube 10b is subjected to a surface treatment for improving the adhesion between the outer surface and the thermosetting resin, thereby improving the adhesion between the core material 10 and the FRP layer 11. It is preferable in terms of improvement.
  • the surface treatment include surface treatment by a physical method such as chemicals or blasting, surface coating treatment by a primer or a coupling agent, purification by plasma or ultraviolet rays, activation treatment, and the like.
  • the inner peripheral spiral tube 10a and the outer peripheral spiral tube 10b are subjected to a treatment for applying a residual stress from the viewpoint of improving the strength of the core material 10.
  • a treatment for applying a residual stress examples include a quenching process and a tempering process as a process for changing the material characteristics such as a shot peening process.
  • the reinforcing fiber 12 previously impregnated with a liquid thermosetting resin is wound around the core material 10 (see FIG. 6).
  • the winding direction Y12 of the outer peripheral side spiral tube 10b and the winding direction Y13 of the reinforcing fiber 12 are different from each other.
  • the winding direction Y13 is the same as the winding direction Y11 described above.
  • the temperature of the wire is higher than the temperature at which the thermosetting resin of the reinforcing fiber 12 is cured, and is lower than the melting point of the inner peripheral spiral tube 10a, outer peripheral spiral tube 10b, and reinforcing fiber 12. Heat with.
  • the thermosetting resin is cured by heating, the adjacent reinforcing fibers 12 are fixed to each other.
  • the FRP layer 11 including the core material 10 having the inner circumferential spiral tube 10a and the outer circumferential spiral tube 10b, the plurality of reinforcing fibers 12, and the thermosetting resin that fixes the reinforcing fibers 12 to each other by the above-described processing. , And the elastic member wire 1 shown in FIG. 1 can be obtained.
  • the inner circumferential spiral tube 10a and the outer circumferential spiral tube 10b are spiral members, it is possible to remove bubbles generated in the elastic member wire 1 also from the inside of the wire. It is possible to reduce the porosity of the wire and reduce the remaining of bubbles that cause a decrease in strength.
  • a filament winding method can be cited.
  • the fiber bundle in which the some fiber has comprised the sheet form it can also be formed by the sheet
  • the elastic member wire 1 it is possible to use a part of the elastic member wire 1 as an elastic member such as a torsion bar, a stabilizer or a frame by bending it.
  • the inner peripheral spiral formed by winding the core member 10 so as to cross each other. Since the tube 10a and the outer periphery side spiral tube 10b have a cylindrical shape and the reinforcing fiber 12 is wound so as to intersect with the outer periphery side spiral tube 10b, the moldability is improved while reducing the weight by making it hollow. The strength against the shear fracture of the FRP layer 11 due to the reduced diameter of the wire 1 can be improved by the inner peripheral spiral tube 10a and the outer peripheral spiral tube 10b wound so as to cross each other.
  • FIG. 7 is a schematic diagram showing the configuration of the elastic member wire according to the modification of the present embodiment.
  • an electrolytic corrosion prevention layer 13 made of an insulating material is provided between the core material 10 and the FRP layer 11.
  • the electrolytic corrosion prevention layer 13 is formed of an insulating oxide film such as an insulating GFRP layer or an alumite layer.
  • the thickness of the electric corrosion prevention layer 13 (the thickness in the radial direction of the core material 10) may be sufficient if insulating properties can be ensured.
  • the GFRP layer has a sufficient effect even if it is about 0.1 mm.
  • Torsion strength test A triaxial strain gauge was affixed to the wire, and the test was performed at a rotational speed of 0.3 ° / second around the central axis of the wire. By this torsion test, the static torsional strength of the wire (carbon fiber) was determined.
  • FIG. 8 is a schematic diagram for explaining the porosity according to the embodiment of the present invention. As shown in FIG. 8, the porosity of the region R 3 was measured as the inner porosity, and the porosity of the region R 4 was measured as the outer porosity.
  • Cross-sectional shape The stability of the dimensions of the elastic member wire was evaluated based on the cross-sectional shape. The change of the cross-sectional shape of the wire after resin hardening / demolding was confirmed.
  • Example 1 As a mandrel to be attached to the filament winding machine, a hard steel wire having a thickness of 1 mm was wound along the longitudinal direction to produce an inner peripheral side spiral tube having an outer diameter of ⁇ 5 mm. As the hard steel wire, a hard steel wire with a diameter of 3 mm was rolled to a thickness of 1 mm. Thereafter, a hard steel wire having a thickness of 1 mm was wound around the inner peripheral side spiral tube along the longitudinal direction to form an outer peripheral side spiral tube having an outer diameter of ⁇ 7 mm, thereby producing a core material. .
  • the angle formed between the winding axis and the winding direction of the inner spiral tube is opposite to the angle formed between the winding axis and the winding direction of the outer spiral tube ( ⁇ ⁇
  • the winding angle of the inner spiral tube was about + 50 °, and the winding angle of the outer spiral tube was about -70 °. This was cut into a length of 3000 mm to obtain a core material of Example 1.
  • an FRP layer was formed on the core material.
  • a fiber bundle of carbon fibers impregnated with a mixed solution of an epoxy resin that is a thermosetting resin and a crosslinking agent the winding direction of the fiber bundle is + 45 ° with respect to the longitudinal direction of the core material.
  • the core material was wound without any gap from one end portion to the other end portion.
  • the winding direction of the fiber mixed bundle is ⁇ 45 ° with respect to the longitudinal direction of the core (opposite to the first layer), It wound without gap from the end to one end.
  • Example 1 The + 45 ° layer and the ⁇ 45 ° layer were alternately laminated to form an uncured carbon fiber reinforced plastic (CFRP) wire having a uniform outer diameter of ⁇ 14 mm. Thereafter, the characteristic measurement wire was heated at 100 ° C. and then cured at 150 ° C. in a state where a tensile load of about 500 grams was applied to the wire in an oven. Thus, the elastic member wire for characteristic measurement of Example 1 was obtained. Table 1 shows the configuration and test results of the elastic member wire according to Example 1.
  • CFRP carbon fiber reinforced plastic
  • Example 2 An uncured carbon fiber reinforced plastic (CFRP) wire produced in Example 1 was inserted into a mold having a groove forming the shape of an experimental frame, sandwiched between molds having the same groove, and heated and cured in an oven. Got the frame. Table 1 shows the configuration and characteristics of the frame according to the second embodiment.
  • CFRP carbon fiber reinforced plastic
  • Comparative Example 1 A round bar made of a 5000 series aluminum material having an outer diameter of 7 mm was used as a mandrel. The other conditions were the same as in Example 1, and the elastic member wire of Comparative Example 1 was obtained. Further, using the elastic member wire of Comparative Example 1, a frame was produced by sandwiching it in a mold in the same manner as in Example 2. Table 1 shows the configuration and characteristics of the elastic member wire according to Comparative Example 1.
  • Comparative Example 2 A round bar made of a pure aluminum material having an outer diameter of 7 mm was used as a mandrel as a core material. The other conditions were the same as in Example 1, and the elastic member wire of Comparative Example 2 was obtained. Table 1 shows the configuration and characteristics of the elastic member wire according to Comparative Example 2. Using the elastic member wire of Comparative Example 2, a frame was produced by being sandwiched in a mold in the same manner as in Example 2.
  • Comparative Example 3 A round bar made of polypropylene (PP) having an outer diameter of 7 mm was used as a mandrel as a core material. The other conditions were the same as in Example 1, and the elastic member wire of Comparative Example 3 was obtained. Table 1 shows the configuration and characteristics of the elastic member wire according to Comparative Example 3.
  • PP polypropylene
  • Comparative Example 4 A cylindrical pipe made of pure aluminum material having an outer diameter of 7 mm and a thickness of 1 mm was used as a mandrel. The other conditions were the same as in Example 1, and the elastic member wire of Comparative Example 4 was obtained. Using the elastic member wire of Comparative Example 4, a frame was produced by sandwiching it in a mold in the same manner as in Example 2. Table 1 shows the configuration and characteristics of the elastic member wire according to Comparative Example 4.
  • Comparative Example 5 A cylindrical polypropylene (PP) pipe having an outer diameter of 7 mm and a thickness of 1 mm was used as a mandrel. The other conditions were the same as in Example 1, and the elastic member wire of Comparative Example 5 was obtained. Table 1 shows the configuration and properties of the elastic member wire according to Comparative Example 5.
  • the wire for an elastic member according to Examples 1 and 2 has substantially the same torsional strength and rigidity as compared with a wire made of a round bar made of an aluminum material (Comparative Examples 1 and 2). It can be said that the strength is high. Furthermore, the porosity of the inner and outer porosity was lower than those of Comparative Examples 1 to 5, and the remaining of bubbles could be reduced by using the spiral tube as the core material.
  • the elastic member wire according to Example 1 was easily deformed, and could be easily fitted into the experimental frame mold, and the wire cross-sectional shape was not deformed (see the formability of Example 2).
  • the wire for elastic members according to Comparative Examples 1, 2, and 4 has resistance when set to the frame mold, is difficult to be deformed and difficult to fit into the mold, the wire is deformed, and the pipe is used as a core material When bending, the pipe was bent and it was difficult to fit.
  • the present invention can include various embodiments not described herein, and various design changes and the like can be made without departing from the technical idea specified by the claims. Is possible.
  • the wire for elastic member and the elastic member according to the present invention are suitable for improving moldability and strength while reducing the weight.

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  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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  • Chemical & Material Sciences (AREA)
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Abstract

La présente invention concerne un fil machine pour un élément élastique, le fil machine étant utilisé pour la fabrication d'un élément élastique et comprenant : un matériau noyau comportant un premier corps tubulaire présentant une forme de spirale et formé à l'aide d'un élément allongé, et un second corps tubulaire présentant une forme de spirale et formé à l'aide d'un élément allongé, et recouvrant le premier corps tubulaire ; et une couche en plastique renforcé de fibres (FRP selon l'abréviation anglo-saxonne) formée à l'aide de fibres renforcées enroulées autour du matériau noyau, et recouvrant la surface externe du matériau noyau. Les premier et second corps tubulaires sont enroulés dans des directions mutuellement opposées par rapport à l'axe central du fil machine pour un élément élastique. En outre, les directions d'enroulement adjacentes du second corps tubulaire et des fibres renforcées situées dans la couche la plus interne de la couche en FRP sont des directions mutuellement opposées par rapport à l'axe central du fil machine pour un élément élastique.
PCT/JP2016/082172 2015-10-29 2016-10-28 Fil machine pour élément élastique, et élément élastique associé WO2017073771A1 (fr)

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JP2015213503A JP2017081048A (ja) 2015-10-29 2015-10-29 弾性部材用線材および弾性部材
JP2015-213503 2015-10-29

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KR102221057B1 (ko) * 2019-12-24 2021-02-26 남양넥스모 주식회사 스티어링 장치의 인터미디에이트 샤프트

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JPS5618136A (en) * 1979-07-12 1981-02-20 Exxon Research Engineering Co Coil spring and its manufacture
US4640500A (en) * 1985-10-31 1987-02-03 Shiau Jgi J Inherently effectively damped coiled spring
JPH0742778A (ja) * 1993-08-04 1995-02-10 Toho Rayon Co Ltd 炭素繊維強化樹脂製コイルスプリング
JP2002071059A (ja) * 2000-08-31 2002-03-08 Kakuichi Technical Service Kk 補強材入りホースとその製造方法

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Publication number Priority date Publication date Assignee Title
JPS5618136A (en) * 1979-07-12 1981-02-20 Exxon Research Engineering Co Coil spring and its manufacture
US4640500A (en) * 1985-10-31 1987-02-03 Shiau Jgi J Inherently effectively damped coiled spring
JPH0742778A (ja) * 1993-08-04 1995-02-10 Toho Rayon Co Ltd 炭素繊維強化樹脂製コイルスプリング
JP2002071059A (ja) * 2000-08-31 2002-03-08 Kakuichi Technical Service Kk 補強材入りホースとその製造方法

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