WO2010150682A1 - Élément de renfort et structure de fixation l'utilisant - Google Patents

Élément de renfort et structure de fixation l'utilisant Download PDF

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Publication number
WO2010150682A1
WO2010150682A1 PCT/JP2010/060116 JP2010060116W WO2010150682A1 WO 2010150682 A1 WO2010150682 A1 WO 2010150682A1 JP 2010060116 W JP2010060116 W JP 2010060116W WO 2010150682 A1 WO2010150682 A1 WO 2010150682A1
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WO
WIPO (PCT)
Prior art keywords
hole
fastened
reinforcing
reinforcing member
fiber
Prior art date
Application number
PCT/JP2010/060116
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English (en)
Japanese (ja)
Inventor
神谷　隆太
Original Assignee
株式会社 豊田自動織機
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Application filed by 株式会社 豊田自動織機 filed Critical 株式会社 豊田自動織機
Publication of WO2010150682A1 publication Critical patent/WO2010150682A1/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
    • B29C70/22—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
    • B29C70/222—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure the structure being shaped to form a three dimensional configuration
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/562—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using extra joining elements, i.e. which are not integral with the parts to be joined
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/64—Joining a non-plastics element to a plastics element, e.g. by force
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • B29C65/782—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined
    • B29C65/7823—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined by using distance pieces, i.e. by using spacers positioned between the parts to be joined and forming a part of the joint
    • B29C65/7826—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined by using distance pieces, i.e. by using spacers positioned between the parts to be joined and forming a part of the joint said distance pieces being non-integral with the parts to be joined, e.g. particles
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B29C66/7212—Fibre-reinforced materials characterised by the composition of the fibres
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B29C66/7214—Fibre-reinforced materials characterised by the length of the fibres
    • B29C66/72141—Fibres of continuous length
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7394—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7394—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset
    • B29C66/73941—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset characterised by the materials of both parts being thermosets
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7375—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured
    • B29C66/73751—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being uncured, i.e. non cross-linked, non vulcanized
    • B29C66/73752—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being uncured, i.e. non cross-linked, non vulcanized the to-be-joined areas of both parts to be joined being uncured
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/10—Thermosetting resins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2305/00—Use of metals, their alloys or their compounds, as reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2307/00—Use of elements other than metals as reinforcement

Definitions

  • This invention relates to the fastening structure of the to-be-fastened member by which the reinforcing member arrange
  • the resin molded body is a lightweight structural material and may be used by being attached to other members by fastening members such as bolts and nuts.
  • the resin molding directly attached to the other member undergoes creep deformation due to the fastening force of the fastening member, and reduces the axial force of the fastening member. For this reason, when the resin molded body and another member are fastened, there is a problem that the fastening member is loosened.
  • a mounting method using a metal pipe as disclosed in Patent Document 1 is often used.
  • Patent Document 1 discloses a structure in which a housing having a rotation detection device is attached to an in-vehicle engine.
  • the housing is formed by resin molding together with a flange for attaching the housing to the vehicle-mounted engine.
  • a metal pipe is inserted into the through hole formed in the flange by insert molding, and the flange and the metal pipe are integrated.
  • the housing is attached to the engine by fastening a bolt passed through a metal pipe to a female screw of the engine.
  • Patent Document 2 discloses a fastening structure of a fiber reinforced composite material including a resin as a matrix and reinforcing fibers and another member.
  • the fiber reinforced composite material is provided with a through hole into which a bolt is inserted, and a high elastic modulus reinforcing fiber is wound concentrically with the through hole on the inner peripheral surface of the through hole.
  • Patent Document 3 discloses a structure in which a fastening member is attached to a sandwich structure plate including an elastic body formed in a plate shape and a resin layer positioned above and below the elastic body.
  • the sandwich structure plate is formed with a through hole into which a bolt is inserted.
  • a fiber reinforced composite material is attached to the inner peripheral surface of the through hole.
  • the fiber reinforced composite material includes a resin as a matrix and reinforcing fibers oriented obliquely with respect to the axial direction of the through hole.
  • the fiber reinforced composite material is formed with a flange portion extending from both ends of the through hole toward the radially outer side of the through hole. In the sandwich structure plate fastened with a bolt and a nut, the flange portion is disposed between the head of the bolt and the resin layer, and between the nut and the resin layer.
  • JP 2006-275270 A Japanese Utility Model Publication No. 63-172628 Japanese Utility Model Publication No. 2-105075
  • Patent Document 1 since the fastening force of the bolt acts only on the metal pipe and does not act on the flange formed of a resin material, the problem of loosening of the bolt due to resin creep can be solved.
  • the method of integrating the metal pipe into the through hole into which the bolt is inserted requires a high mounting accuracy of the metal pipe.
  • resin is not interposed between the end face of the metal pipe and the head of the bolt and between the end face of the metal pipe and the engine as in the invention of Patent Document 1.
  • a highly precise molding technique is required.
  • Patent Document 2 when the bolt inserted into the through hole is fastened, the reinforcing fiber is disposed on the inner peripheral surface of the through hole, so that buckling of the fiber reinforced composite material is prevented.
  • the fiber reinforced composite material there is a problem that a resin exists in a gap between the reinforcing fibers, and the bolt loosens due to the creep of the resin.
  • the reinforcing fibers are densely arranged and the amount of the resin is reduced, the reinforcing fibers come into contact with each other and the resin does not exist in the gap between the reinforcing fibers.
  • the reinforcing fibers are arranged without using a resin in this way, the reinforcing fibers are not bonded to each other.
  • Patent Document 3 a fiber reinforced composite material is disposed on the inner peripheral surface of the through hole of the sandwich structure plate. Therefore, when the bolt inserted into the through hole is fastened, creep deformation of the resin layer due to the axial force of the bolt is suppressed. Further, the periphery of the through hole is reinforced by a flange portion formed of a fiber reinforced composite material. When the sandwich structure board to which the fiber reinforced composite material is attached is fastened with bolts, the crossing angle of the reinforcing fibers obliquely oriented to each other spreads, so that the fiber reinforced composite material is deformed and the thickness (height) changes.
  • the fastening structure of the sandwich structure board is maintained by making the thickness of the fiber reinforced composite material correspond to the thickness of the sandwich structure board deformed by the axial force of the bolt. Therefore, when the fiber reinforced composite material of Patent Document 3 is applied to a through hole of a resin molded body such as a sandwich structure plate in which no elastic body exists, creep deformation of the surface of the resin molded body by fastening a bolt Following this, there is a problem that the thickness of the fiber-reinforced composite material decreases.
  • An object of the present invention is to suppress creep deformation around a through hole when a reinforcing member that is a fiber-reinforced composite material is disposed in a through hole for fastening formed in a member to be fastened that is a resin molded body. is there.
  • a reinforcing member that is formed in a member to be fastened that is a resin molded body and is disposed inside a through hole into which a fastening member can be inserted.
  • the reinforcing member is a fiber-reinforced composite material including a resin as a matrix and reinforcing fibers. At least a part of the reinforcing fiber is oriented along the axial direction of the through hole and is disposed at least from one opening to the other opening of the through hole.
  • the reinforcing member is disposed inside the through-hole in addition to the case where at least a part of the reinforcing member is in close contact with the inner peripheral surface of the through-hole without any gap, It includes a case where a gap exists between the peripheral surface and at least a part of the reinforcing member is disposed inside the through hole via the gap.
  • the reinforcing fibers are oriented along the axial direction of the through holes, the reinforcing fibers are oriented in parallel to the axial lines of the through holes, and the orientation direction of the reinforcing fibers (the direction of the fiber axis) is the through holes. This includes the case where it is slightly shifted from the axis (stress axis).
  • the angle formed by the fiber axis and the stress axis is 0 °, the compression elastic modulus of the fiber-reinforced composite material including the reinforcing fibers is maximized. If the angle formed by the fiber axis and the stress axis is small, the compression elastic modulus of the fiber-reinforced composite material is close to the maximum.
  • the compression elastic modulus of the fiber reinforced composite material when the angle between the fiber axis and the stress axis is 0 ° is 100%
  • the fiber reinforced composite when the angle between the fiber axis and the stress axis is 10 °.
  • the compression modulus of the material is 80%. Therefore, the angle formed by the orientation direction of the reinforcing fibers and the axis of the through hole is preferably within 10 °.
  • the reinforcing fiber is oriented along the axial direction of the through-hole in addition to the case where the longitudinal direction of the reinforcing fiber (the direction of the fiber axis) is oriented parallel to the axis of the through-hole.
  • the longitudinal direction of the fiber is in a direction slightly shifted from the axis of the through hole.
  • the angle formed by the longitudinal direction of the reinforcing fiber and the axis of the through hole is within 10 °.
  • the reinforcing fiber is oriented along the axial direction of the through hole and is disposed from at least one opening to the other opening of the through hole. It is oriented along the direction and is arranged without a gap. Therefore, a case where a reinforcing fiber shorter than the length of the through hole in the axial direction is arranged along the axial direction of the through hole and a region (gap) where the reinforcing fiber is not arranged between both openings of the through hole is excluded. .
  • a fastening structure for fastening a fastened member on which a reinforcing member is arranged to another member using the fastening member.
  • the member to be fastened is a resin molded body having a through hole into which the fastening member can be inserted.
  • the reinforcing member is a fiber reinforced composite material including a resin as a matrix and reinforcing fibers.
  • the reinforcing member is disposed inside the through hole. At least a part of the reinforcing fiber is oriented along the axial direction of the through hole and is disposed at least from one opening to the other opening of the through hole.
  • the schematic diagram explaining the core yarn and braiding which concern on the 1st Embodiment of this invention is a schematic diagram explaining the reinforcement member of FIG. 1, (b) is a schematic diagram explaining the end surface shape of the reinforcement member of FIG.
  • the cross-sectional schematic diagram which shows the fastening structure of the to-be-fastened member which concerns on the 2nd Embodiment of this invention.
  • the reinforcing member 1 is a fiber-reinforced composite material including a thermosetting resin as a matrix and carbon fibers as reinforcing fibers.
  • each of the plurality of core yarns 2 and each of the plurality of braids 3 is made of a bundle of carbon fibers.
  • a braided structure is formed by alternately and diagonally crossing the braids 3 oriented in different directions with respect to the core yarn 2 oriented straight.
  • the reinforcing member 1 includes a cylindrical portion 5 formed in a cylindrical shape that can be fixed to a fastening through-hole 4 shown in FIG. 3 to be described later, and a through-hole from the upper end of the cylindrical portion 5.
  • 4 includes a first flange portion 6 extending outward in the radial direction, and a second flange portion 7 extending outward in the radial direction of the through hole 4 from the lower end of the cylindrical portion 5.
  • the first flange portion 6 and the second flange portion 7 are annular.
  • the cylindrical portion 5, the first flange portion 6 and the second flange portion 7 are formed by the braided tissue described above.
  • the core yarn 2 extends from one end surface of the cylindrical portion 5 to the other end surface along the axial direction of the cylindrical portion 5.
  • the first flange portion 6 includes a circular hole 9 having a diameter into which a bolt 8 as a fastening member described later can be inserted at the center thereof.
  • the inner diameter of the circular hole 9 coincides with the inner diameter of the cylindrical portion 5 of the reinforcing member 1.
  • the first flange portion 6 has an outer diameter larger than the outer shape of the head 8 a of the bolt 8.
  • the second flange portion 7 also has the same shape and size as the first flange portion 6.
  • the fastened member 10 on which the reinforcing member 1 is disposed will be described.
  • the fastened member 10 includes a thermosetting resin as a matrix and a carbon fiber bundle 11 as a bundle-like reinforcing fiber, and is formed in a plate shape.
  • the carbon fiber bundle 11 is oriented along the X, Y, and Z axis directions orthogonal to each other, and forms a three-dimensional fiber structure.
  • a through hole 4 into which the bolt 8 is inserted is formed in the fastened member 10.
  • the cross section of the through hole 4 is formed in a circular shape having a diameter into which the bolt 8 can be inserted.
  • the cylindrical portion 5 of the reinforcing member 1 is fixed to the inner peripheral surface of the through hole 4 (the peripheral surface inside the through hole 4) without a gap. Further, the first flange portion 6 is disposed in contact with the upper surface of the fastened member 10. The second flange portion 7 is disposed in contact with the bottom surface (lower surface) of the fastened member 10.
  • the fastened member 10 is fastened with a metal material 12 as another member as follows.
  • the metal material 12 has a through hole 13 for fastening.
  • the lower surface of the fastened member 10 and the upper surface of the metal material 12 face each other, and the axis 4a of the through hole 4 and the axis 13a of the through hole 13 coincide.
  • the bolt 8 is inserted into the through-hole 4, and the seat surface of the head 8 a is disposed without protruding from the first flange portion 6.
  • the cylindrical portion 5 of the reinforcing member 1 is disposed in a region facing the bolt 8 on the inner peripheral surface of the through hole 4.
  • the core yarn 2 is oriented along the direction of the axis 4 a of the through hole 4.
  • the cylindrical part 5 has a length longer than the plate thickness of the fastened member 10.
  • the core yarn 2 extends from one opening of the through hole 4 to the other opening.
  • the second flange portion 7 is sandwiched between the fastened member 10 and the metal material 12.
  • the tip of the bolt 8 protrudes below the metal material 12 through the through hole 13 and is tightened by a nut 14.
  • a method for manufacturing the reinforcing member 1 and the fastened member 10 will be described.
  • a carbon fiber bundle 11 and a flat support (not shown) are prepared.
  • a pipe having a diameter into which the shaft portion of the bolt 8 can be inserted is arranged at a predetermined position of the support so as to extend in a direction perpendicular to the plane of the support (Z-axis direction).
  • pins are arranged on the support so as to extend in a direction (Z-axis direction) perpendicular to the plane of the support at a predetermined pitch.
  • the reinforcing fiber layer is laminated in the Z-axis direction to form a laminated yarn group in which the carbon fiber bundles 11 are oriented along the X and Y axes.
  • the pin is removed from the support, and the pin is replaced with a thickness direction yarn (vertical yarn) oriented along a direction (Z-axis direction) orthogonal to the carbon fiber bundle 11 forming the laminated yarn group.
  • the laminated yarn group is bonded by a thickness direction yarn.
  • the pipe is removed from the support to form a three-dimensional fiber structure including carbon fiber bundles 11 extending in the X, Y, and Z axis directions orthogonal to each other.
  • the three-dimensional fiber structure is a carbon fiber bundle 11 having a three-dimensional structure before the resin is impregnated in the fastened member 10.
  • a through hole 4 is formed in the region where the pipe of the three-dimensional fiber structure is removed.
  • core yarn 2 and braid 3 are prepared.
  • a cylindrical core member having an outer diameter corresponding to the hole diameter into which the shaft portion of the bolt 8 can be inserted is prepared.
  • the braid is placed on the outer periphery of the core material with the core material placed at the center (axis of the braid-like tissue to be formed) of the three-dimensional braider (rotor carrier type three-dimensional woven loom) that is a device for forming the braided tissue.
  • the braided structure is an aggregate including the core yarn 2 and the braid 3 before the reinforcing member 1 is impregnated with resin.
  • the core yarn 2 is arranged so as to extend along the axial direction (Z-axis direction) of the core material, and the braid 3 is arranged so as to extend along two axial directions of the A axis and the B axis.
  • the A and B axes are axes that are inclined with respect to the direction in which the core yarn 2 extends (Z-axis direction) and that extend in directions intersecting each other.
  • a braided structure is formed by combining the core yarn 2 and the braid 3 while holding the core yarn 2 so as to extend in the Z-axis direction by a three-dimensional blader.
  • the braided tissue is formed so that the length in the Z-axis direction corresponds to the height of the through hole 4.
  • the braided tissue is formed so that the outer periphery of the braided tissue has a shape and size corresponding to the inner periphery of the through hole 4.
  • the core material is removed from the braided tissue to obtain a braided cylindrical portion which is a cylindrical braided tissue.
  • the braided cylindrical portion corresponds to the cylindrical portion 5 in the reinforcing member 1 and is a carbon fiber formed in a braided shape before being impregnated with resin.
  • a braided flange portion which is an annular braided structure, is formed continuously with the braided cylindrical portion at the upper and lower ends of the braided cylindrical portion.
  • the braid flange portion corresponds to the first flange portion 6 and the second flange portion 7 in the reinforcing member 1 and is a carbon fiber formed in a braid shape before being impregnated with resin.
  • the braided flange portion is formed continuously with the braided cylindrical portion by combining the core yarn 2 and the braided yarn 3 continuous from the upper end and the lower end of the braided cylindrical portion.
  • the braided tissue is inserted into the through-hole 4 of the three-dimensional fiber structure, and the end of the braided tissue is protruded from the through-hole 4 of the three-dimensional fiber structure.
  • the braided flange portion is bent so as to pass through the through hole 4.
  • the braided cylindrical portion is arranged corresponding to the inner peripheral surface of the through-hole 4, and the braided flange portion is arranged at the upper and lower ends of the through-hole 4 in the three-dimensional fiber structure.
  • the braided flange portion is expanded to the original shape (annular shape) at the upper end and the lower end of the through hole 4.
  • the braid flange portion is arranged in contact with the three-dimensional fiber structure in all regions.
  • the braided structure fixed to the three-dimensional fiber structure is formed into a formed body using a forming die.
  • the molding die includes an upper die and a lower die, and includes a pressure reducing passage for decompressing the inside of the die and a resin injection passage for injecting resin into the die.
  • a columnar convex portion having a cross-sectional shape corresponding to the inner diameter of the braided cylindrical portion of the braided tissue is formed on the lower mold.
  • the braided tissue is disposed on the lower mold so that the braided cylindrical portion surrounds the convex portion and is in contact with the convex portion.
  • a thermosetting resin is injected into the die to impregnate the three-dimensional fiber structure and braided structure.
  • the mold is heated by a heating means (not shown), and the three-dimensional fiber structure and braided structure are heated to a temperature equal to or higher than the thermosetting temperature of the resin to cure the impregnated resin.
  • the mold is opened, and the molded body in which the resin is cured is taken out from the lower mold.
  • the molded body is a fiber-reinforced composite material including a three-dimensional fiber structure, a braided structure, and a resin. That is, the molded body includes the fastened member 10 and the reinforcing member 1 that are integrally formed.
  • the reinforcing member 1 and the fastened member 10 in the first embodiment will be described.
  • the reinforcing member 1 is fixed to the inner peripheral surface of the through hole 4 of the fastened member 10.
  • the core yarn 2 is oriented along the direction of the axis 4 a of the through hole 4 (plate thickness direction of the member to be fastened 10), and extends at least from one opening to the other opening of the through hole 4. It extends continuously.
  • the core yarn 2 is in contact with the head 8 a of the bolt 8 and the metal material 12.
  • the orientation direction of the core yarn 2 is the same as the direction of the stress acting on the fastened member 10. That is, the angle formed by the fiber axis and the stress axis is 0 °.
  • the axial force due to the fastening of the bolt 8 is the core yarn 2 on the inner peripheral surface of the through hole 4.
  • the compression elastic modulus is about 40 times larger. Therefore, resin creep of the fastened member 10 due to the fastening force of the bolt 8 is suppressed, and deformation of the fastened member 10 can be prevented.
  • the extension region along the axis 4a of the head 8a of the bolt 8 is a stress acting region in which creep is likely to occur due to the stress caused by the fastening force received from the head 8a.
  • the stress acting on the portion closest to the head 8a of the bolt 8 in the stress acting region is equal to the stress acting on the portion away from the portion. Therefore, if at least the core yarn 2 inside the through-hole 4 is oriented along the direction of the axis 4a of the through-hole 4 and arranged from one opening to the other opening, along the direction of the axis 4a. Even if the oriented core yarn 2 is not in the first flange portion 6 that contacts the head 8 a of the bolt 8, the fastening force of the bolt 8 applied to the stress acting region is sufficiently received by the core yarn 2 inside the through hole 4. be able to.
  • the fastened member 10 contains a carbon fiber bundle 11 in addition to the resin.
  • the member 10 to be fastened has a smaller amount of resin that causes creep than the case where the carbon fiber bundle 11 is not contained. Therefore, the effect of suppressing creep can be enhanced by using the fastened member 10 containing the carbon fiber bundle 11 as the fastened member to which the reinforcing member 1 is fastened.
  • the reinforcing member 1 In order to closely attach the reinforcing member 1 to the inner peripheral surface of the through hole 4 without a gap, it is necessary to form the outer periphery of the cylindrical portion 5 in a circular shape.
  • the carbon fiber which is a fabric-like woven fabric is formed into a cylindrical shape, it is necessary to sew and join the ends of the woven fabric, and a seam is generated at the joined portion.
  • the reinforcing member 1 is seamless since there is no end portion to be joined. It can be formed in a cylindrical shape. Therefore, the reinforcing member 1 can be closely attached to the inner peripheral surface of the through hole 4 without a gap.
  • the cylindrical part 5 and the 1st flange part 6 and the cylindrical part 5 and the 2nd flange part 7 can be formed continuously by forming the reinforcement member 1 with a braided structure
  • the carbon fiber In order to enhance the creep suppressing effect, at least a part of the carbon fibers needs to be oriented along the direction of the axis 4 a of the through hole 4 in the region including the inside of the through hole 4. Therefore, it is desirable that the carbon fiber can be arranged so that the orientation of the carbon fiber is stable.
  • a braided structure is formed by assembling the core yarn 2 and the braid 3 that are carbon fibers
  • the core yarn 2 is fixed by the braid 3 that is obliquely oriented with respect to the core yarn 2. The position and direction of 2 can be stabilized. Therefore, the core yarn 2 can be stably arranged in the reinforcing member 1 along the direction of the axis 4a of the through hole 4, and the creep suppressing effect of the fastened member 10 can be enhanced.
  • the force from the head 8 a of the bolt 8 is not applied directly to the interface but is distributed by the first flange portion 6 and the second flange portion 7. Therefore, it is possible to prevent a crack or a crack from occurring at the interface between the reinforcing member 1 and the fastened member 10.
  • the reinforcing member 1 is fixed to the inner peripheral surface of the through hole 4, and the fastened member 10 is fastened to the metal material 12 by a bolt 8 inserted into the through hole 4. Since the reinforcing member 1 is fixed to the inner peripheral surface of the through hole 4, loosening of the bolt 8 can be suppressed when the fastened member 10 and the metal material 12 are fastened by the bolt 8.
  • the reinforcing member 1 and the fastened member 10 are integrally formed by impregnating the resin after the braided structure is combined with the three-dimensional fiber structure. Therefore, the reinforcing member 1 provided with the first flange portion 6 and the second flange portion 7 can be fixed to the through hole 4 of the fastened member 10. Furthermore, since it is not necessary to press-fit the reinforcing member 1 into the through-hole 4, it is not necessary to increase the processing accuracy of the through-hole 4 and the press-fitting accuracy of the reinforcing member 1, and the processing becomes easy.
  • Reinforcing member 1 includes resin and carbon fiber and is not a metal member. Therefore, the increase in the weight in a fastening structure which arises when attaching a metal pipe to a to-be-fastened member like patent document 1 can be prevented.
  • a separate metal member is integrated with the member to be fastened, a highly precise molding technique is required, whereas it is difficult to integrate the nonmetallic reinforcing member 1 with the member to be fastened. It can be easily carried out without requiring an accurate molding technique.
  • the fastened member 10 to which the non-metallic reinforcing member 1 is fixed it is not necessary to separate another metal member from the fastened member when the fastened member is discarded. Cost can be reduced.
  • the fastened member 10 is molded by a molding die having a convex portion which is a column having a cross-sectional shape corresponding to the cylindrical portion 5.
  • a through-hole 4 for fastening is formed in the region corresponding to the convex portion of the fastened member 10 at the stage of molding. Therefore, it is not necessary to form the fastening through hole 4 in the molded member to be fastened 10 using, for example, a tool, and thus the tool is not damaged.
  • the first embodiment described above has the following advantages.
  • (1) The reinforcing member 1 having the through hole 4 and having a higher compression elastic modulus than the thermosetting resin is fixed to the inner peripheral surface of the through hole 4 of the member to be fastened 10.
  • the core yarn 2 is oriented along the direction of the axis 4 a of the through hole 4 and is continuously disposed from at least one opening of the through hole 4 to the other opening. Since the compression elastic modulus of the reinforcing member 1 when the core yarn 2 is oriented along the direction of the axis 4a of the through hole 4 is larger than the compression elastic modulus of the thermosetting resin, the bolt 8 is inserted into the through hole 4.
  • creep deformation of the member to be fastened 10 due to the fastening force of the bolt 8 can be suppressed.
  • the fastened member 10 contains the carbon fiber bundle 11
  • the amount of resin that causes creep is smaller than that of the fastened member that does not contain the carbon fiber bundle 11. Therefore, the creep suppressing effect of the fastened member 10 can be enhanced.
  • the braided structure is formed by the core yarn 2 and the braid 3 which are carbon fibers, the carbon fibers can be seamlessly formed in a cylindrical shape, and the reinforcing member 1 is securely adhered to the inner peripheral surface of the through hole 4 Can be made.
  • the reinforcing member 1 is formed of a braided structure composed of the core yarn 2 and the braided yarn 3. Therefore, the core yarn 2 can be stably disposed in the reinforcing member 1 so as to extend along the direction of the axis 4 a of the through hole 4, and the creep suppressing effect of the fastened member 10 can be enhanced.
  • the member to be fastened 10 is fastened to the metal member 12 by inserting the bolt 8 into the through hole 4 of the member to be fastened 10 via the reinforcing member 1. Therefore, loosening of the bolt 8 when the fastened member 10 is fastened to the metal material 12 can be suppressed.
  • the reinforcing member 1 is integrally formed with the fastened member 10. Therefore, it is not necessary to press-fit the reinforcing member 1 into the fastened member 10, and the processing accuracy of the through holes 4 formed in the fastened member 10 and the press-fit accuracy of the reinforcing member 1 do not have to be increased.
  • the fastening member 10 has a through-hole 4 for fastening in a region corresponding to the convex portion of the lower mold of the molding die at the time of molding. Therefore, it is not necessary to separately form the through-hole 4 for fastening in the to-be-fastened member 10 after molding.
  • the cylindrical portion 5 and the first flange portion 6 and the cylindrical portion 5 and the second flange portion 7 can be formed continuously. .
  • the fastening force of the bolt 8 can be dispersed by the first flange portion 6 and the second flange portion 7. It is possible to prevent cracks and cracks from occurring at the interface between the reinforcing member 1 and the fastened member 10 disposed on the inner peripheral surface.
  • the fastened member 10 and the reinforcing member 1 are formed integrally, it is not necessary to fit the reinforcing member 1 into the through hole 4 of the fastened member 10. Therefore, the reinforcing member 1 provided with the first flange portion 6 and the second flange portion 7 can be fixed to the inner peripheral surface of the through-hole 4 of the fastened member 10.
  • the second embodiment shown in FIGS. 4 and 5 is the same as the first embodiment except that the shape of the reinforcing member 1 in the first embodiment and the orientation direction of the core yarn 2 in the reinforcing member 1 are changed.
  • the same reference numerals are given to the configurations, and detailed description is omitted.
  • the reinforcing member 15 is formed in a cylindrical shape.
  • the cylindrical reinforcing member 15 corresponds to the cylindrical portion 5 of the reinforcing member 1 in the first embodiment.
  • the braid 17 has the same thickness as the core yarn 16, and a braid-like structure is formed by the braid 17 being alternately and obliquely intersected with the core yarn 16.
  • the core yarn 16 is bent at a portion where it is combined with the braid 17 and is not shown.
  • the core yarn 16 is oriented such that its longitudinal direction is inclined by 5 ° with respect to a cylindrical axis (an axis 20a of a through-hole 20 described later). Note that the longitudinal direction of the core yarn 16 refers to the direction in which the core yarn 16 is oriented except for the bent portion of the core yarn 16.
  • the fastened member 18 is a fiber-reinforced composite material including a thermosetting resin as a matrix and a carbon fiber bundle 19.
  • the fastened member 18 is formed in a plate shape, and the carbon fiber bundle 19 has a three-dimensional structure in which the fiber bundles are oriented along the X, Y, and Z axis directions orthogonal to each other.
  • a fastening through hole 20 is formed in the fastened member 18.
  • the outer peripheral surface of the reinforcing member 15 has a shape corresponding to the inner peripheral surface of the through hole 20 of the fastened member 18.
  • the molded reinforcing member 15 is attached to the inner peripheral surface of the through hole 20.
  • the reinforcing member 15 is disposed in the through hole 20 in a state where a gap (not shown) required for fitting is formed between the inner peripheral surface of the through hole 20 and the outer peripheral surface of the reinforcing member 15.
  • the fastened member 18 and the metal material 21 are arranged so that the lower surface of the fastened member 18 and the upper surface of the metal material 21 are in contact with each other.
  • the axis 22a of the hole 22 coincides.
  • Bolts 23 are inserted into the through holes 20 and 22, and the fastened member 18 and the metal material 21 are fastened by bolts 23 and nuts 24.
  • the following advantages can be obtained in addition to the advantages similar to (1) to (8) in the first embodiment.
  • the material and the processing cost required for forming the first flange portion 6 and the second flange portion 7 are reduced. can do.
  • the molded reinforcing member 15 can be easily fitted into the through hole 20 of the fastened member 18.
  • the present invention is not limited to the configuration of each of the embodiments described above, and various modifications are possible within the scope of the gist of the present invention, and can be implemented as follows.
  • the reinforcing fibers constituting the fastened members 10 and 18 and the reinforcing members 1 and 15 may not be carbon fibers, and may be glass fibers, for example.
  • the type of reinforcing fiber used for the fastened members 10 and 18 and the reinforcing members 1 and 15 may not be one.
  • a plurality of types of reinforcing fibers may be used such that the core yarns 2 and 16 are carbon fibers and the braided yarns 3 and 17 are glass fibers.
  • a thread sufficiently thinner than the core threads 2 and 16 may be used for the braiding threads 3 and 17 in the reinforcing members 1 and 15. In that case, bending of the core yarns 2 and 16 caused by combining the braid yarns 3 and 17 and the core yarns 2 and 16 can be reduced.
  • the flange portion 6 does not have to be in an annular shape as long as the seating surface of the head 8a of the bolt 8 can be arranged without protruding from the first flange portion 6.
  • the diameter of the first flange portion 6 is smaller than the diameter of the head portion 8a of the bolt 8, there is a high possibility that the head portion 8a of the bolt 8 and the member to be fastened 10 come into contact with each other and the member to be fastened 10 undergoes creep deformation. Become.
  • the diameter of the 1st flange part 6 is too large, there exists a problem that a weight increases. For this reason, it is desirable that the diameter of the first flange portion 6 is slightly larger than the diameter of the head 8 a of the bolt 8.
  • the first flange portion 6 and the second flange portion 7 of the reinforcing member 1 are formed continuously with the cylindrical portion 5 when formed into a braided structure by the core yarn 2 and the braided yarn 3. It does not have to be.
  • the cylindrical portion 5 and the first flange portion 6 or the cylindrical portion 5 and the second flange portion 7 are separately formed by bundle-like reinforcing fibers, the cylindrical portion 5 and the first flange portion 6 are made of resin.
  • the cylindrical portion 5 and the second flange portion 7 may be joined.
  • the reinforcing member 1 does not necessarily include the first flange portion 6 and the second flange portion 7.
  • the reinforcing member 1 may include only one of the first flange portion 6 and the second flange portion 7, and may not include both the first flange portion 6 and the second flange portion 7.
  • the shape of the second flange portion 7 may not be an annular shape.
  • the second flange portion 7 may have a smaller diameter than the head 8 a of the bolt 8.
  • the first flange portion 6 and the second flange portion 7 may not be disposed so as to protrude from the surface of the fastened member 10.
  • the thickness of the periphery of the through hole 4 may be reduced by the thickness of the first flange portion 6 and the second flange portion 7.
  • the surface of the to-be-fastened member 10 and the surface of the 1st flange part 6 and the 2nd flange part 7 are arrange
  • the fiber volume content (Vf) is increased around the through hole 4 of the fastened member 10 as disclosed in Japanese Patent Application Laid-Open No. 2007-268941, so that the creep suppressing effect is enhanced.
  • the fastening member with which the first flange portion 6 abuts may not be the bolt 8.
  • the bolt 8 when the bolt 8 is inserted from the through hole 13 side of the metal material 12 and the nut 14 is fastened to the tip of the bolt 8 protruding from the upper end of the through hole 4 of the member 10 to be fastened, the first flange portion 6 and the nut 14 may be in contact with each other.
  • the reinforcing member 1 and the fastened member 10 do not have to be formed integrally.
  • the reinforcing member 1 and the fastened member 10 may be formed separately, and the reinforcing member 1 may be fitted into the through hole 4 formed in the fastened member 10 after molding.
  • the manufacturing method of the reinforcing member 1 and the fastened member 10 is not limited to the method described in the first embodiment, and the conventional manufacturing method of the fiber-reinforced composite material, the manufacturing method of the braided tissue, and the tertiary You may manufacture with the manufacturing method of an original fabric.
  • the fastened members 10 and 18 on which the reinforcing members 1 and 15 are disposed may not contain reinforcing fibers.
  • the fastened members 10 and 18 may be resin molded bodies, for example.
  • the carbon fibers are braided. It does not have to be formed in the organization.
  • the reinforcing member may be formed of a plain weave or bag-woven fabric.
  • a reinforcing member is molded using a mold having a convex portion having a shape corresponding to the through hole, carbon fibers are attached to the outer peripheral surface of the convex portion so as to extend along the axial direction of the through hole.
  • the reinforcing member may be molded by injecting resin in a state. Thereby, a bundle-like carbon fiber can be arrange
  • the through holes 4 and 20 may not be formed at the same time when the members to be fastened 10 and 18 are formed.
  • the through holes 4 and 20 may be formed by drilling the fastened members 10 and 18 after molding with a tool such as a drill. Further, after drilling, external processing such as deburring around the through hole 4 and cutting of unnecessary portions may be performed.
  • the carbon fiber bundles 11 and 19 of the fastened members 10 and 18 may not be oriented so as to form a three-dimensional structure.
  • the carbon fiber bundles 11 and 19 may be oriented so as to form a two-dimensional structure, or the carbon fiber bundles 11 and 19 may be oriented along one direction.
  • the other members fastened to the fastened members 10 and 18 may not be the metal materials 12 and 20.
  • the other member to be fastened to the fastened members 10 and 20 may be a fiber reinforced composite material or a resin molded body, or may be a rock that constitutes a wall, a floor, or the ground.
  • the other members to be fastened to the fastened members 10 and 20 may have other shapes such as a rod shape or a column shape instead of the plate shape.
  • the diameters of the core yarns 2 and 16 and the diameters of the braids 3 and 17 may be different.
  • the braid 3 may be a thread sufficiently thinner than the core thread 2.
  • the core yarn can be oriented straight along the axial direction of the through hole.
  • the core yarn continuously arranged from one opening portion of the through holes 4 and 20 to the other opening portion may not be one core yarn.
  • a plurality of core yarns may be connected along the axial direction of the through hole, so that the core yarn may be arranged at least from one opening portion of the through holes 4 and 20 to the other opening portion without a gap. .
  • the core yarn 16 may not be oriented with an inclination of 5 ° with respect to the axis 20a of the through hole 20.
  • the core yarn 16 may be inclined by 10 ° with respect to the axis 20 a of the through hole 20, or the core yarn 16 is in the direction of the axis 20 a of the through hole 20 (the fiber axis of the core yarn 16 and the axis of the through hole 20 are (The direction in which the angle formed is 0 °) may be oriented.
  • the angle formed by the core yarn 16 and the axis 20a of the through hole 20 is within 10 °.
  • the core yarn 16 may not be bent, and for example, the core yarn 16 may have a straight shape.
  • the reinforcing member 15 and the fastened member 18 do not have to be formed separately.
  • the reinforcing member 15 and the fastened member 18 may be integrally formed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Moulding By Coating Moulds (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Connection Of Plates (AREA)

Abstract

L'invention porte sur un élément de renfort (1) disposé à l'intérieur d'un trou traversant (4), formé dans un élément fixé moulé en résine (10), dans lequel un élément de fixation (8) peut être introduit. L'élément de renfort (1) est un composite renforcé par fibres, contenant une matrice en résine et des fibres de renfort (11). Au moins certaines des fibres de renfort (11) sont orientées le long de la direction axiale du trou traversant (4) et s'étendent au moins d'une ouverture du trou traversant (4) à l'autre ouverture de celui-ci.
PCT/JP2010/060116 2009-06-22 2010-06-15 Élément de renfort et structure de fixation l'utilisant WO2010150682A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009-147369 2009-06-22
JP2009147369A JP5206599B2 (ja) 2009-06-22 2009-06-22 樹脂成形体である被締結部材に形成された締結用の貫通孔に配置される繊維強化複合材である補強部材及び貫通孔に補強部材が配置された被締結部材の締結構造

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WO2010150682A1 true WO2010150682A1 (fr) 2010-12-29

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