WO2021149377A1 - Resin formed panel, access door panel, and resin formed panel production method - Google Patents

Resin formed panel, access door panel, and resin formed panel production method Download PDF

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Publication number
WO2021149377A1
WO2021149377A1 PCT/JP2020/045623 JP2020045623W WO2021149377A1 WO 2021149377 A1 WO2021149377 A1 WO 2021149377A1 JP 2020045623 W JP2020045623 W JP 2020045623W WO 2021149377 A1 WO2021149377 A1 WO 2021149377A1
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WO
WIPO (PCT)
Prior art keywords
substrate
resin molded
molded panel
recess
rib
Prior art date
Application number
PCT/JP2020/045623
Other languages
French (fr)
Japanese (ja)
Inventor
周平 吉津
隆之 清水
佐藤　幸宏
中馬　康晴
Original Assignee
三菱重工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱重工業株式会社 filed Critical 三菱重工業株式会社
Publication of WO2021149377A1 publication Critical patent/WO2021149377A1/en

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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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • 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
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B29C69/02—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore of moulding techniques only
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
    • B64C1/14—Windows; Doors; Hatch covers or access panels; Surrounding frame structures; Canopies; Windscreens accessories therefor, e.g. pressure sensors, water deflectors, hinges, seals, handles, latches, windscreen wipers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
    • B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
    • B64F5/10—Manufacturing or assembling aircraft, e.g. jigs therefor
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/24—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/40—Weight reduction

Definitions

  • the present disclosure relates to a resin molded panel, an access door panel, and a method for manufacturing a resin molded panel.
  • the present application claims priority with respect to Japanese Patent Application No. 2020-007466 filed in Japan on January 21, 2020, the contents of which are incorporated herein by reference.
  • the fuselage of a transportation machine including an aircraft and a rotating machine including a turbine has an opening for accessing the inside when performing maintenance or the like.
  • This opening is normally closed by a panel (access door panel).
  • a panel access door panel
  • Patent Document 1 the one described in Patent Document 1 below is known.
  • the panel described in Patent Document 1 includes a plate-shaped structural member formed of a composite material and a stiffener extending along the surface of the structural member.
  • the stiffeners are joined only through an adhesive layer that extends along the surface of the structural member.
  • the present disclosure has been made in order to solve the above problems, and an object of the present disclosure is to provide a resin molded panel, an access door panel, and a method for manufacturing a resin molded panel capable of maintaining strength more stably. do.
  • the resin molded panel according to the present disclosure is composed of a fiber reinforced resin containing continuous fibers and a thermoplastic resin, and is composed of a substrate having recesses formed from the plate surface and a thermoplastic resin. It has a mounting member that is inserted into the recess and fused to the bottom surface and the inner wall surface of the recess.
  • the method for manufacturing a resin molded panel according to the present disclosure is composed of a substrate made of a fiber-reinforced resin containing continuous fibers and a thermoplastic resin, and having a recess formed from a plate surface, and a thermoplastic resin, which is inserted into the recess. It is a method of manufacturing a resin molded panel having a mounting member that is fused to the bottom surface and the inner wall surface of the recess, and the mounting member is formed by a substrate forming step of forming the substrate and injection molding. It includes a mounting member forming step of forming and a fusion step of inserting the mounting member into the recess and fusing the mounting member to the bottom surface and the inner wall surface.
  • FIG. 5 is a cross-sectional view taken along the line AA of FIG. It is sectional drawing in BB line of FIG. It is a flowchart which shows each process of the manufacturing method of the resin molded panel which concerns on 1st Embodiment of this disclosure. It is a flowchart which shows the modification of the manufacturing method of the resin molded panel which concerns on 1st Embodiment of this disclosure. It is sectional drawing of the resin molded panel which concerns on 2nd Embodiment of this disclosure. It is sectional drawing of the resin molded panel which concerns on 3rd Embodiment of this disclosure. It is a top view of the resin molded panel which concerns on 4th Embodiment of this disclosure.
  • FIG. 5 is a cross-sectional view taken along the line CC of FIG.
  • the resin molded panel 100 is used as an access door panel 200 for closing an access hatch (opening) formed in, for example, an aircraft body or a casing of a wind turbine for wind power generation.
  • an access hatch opening
  • it is preferably used in parts where light weight and high strength are required, such as an access hatch for accessing an aircraft fuel tank.
  • the resin molded panel 100 includes a substrate 1, a rib 5 as a mounting member 21, and an annular member 2.
  • the substrate 1 has a plate shape made of a fiber reinforced resin. Specifically, the substrate 1 is formed by impregnating a prepreg formed of continuous fibers with a thermoplastic resin.
  • the substrate 1 has an elliptical shape as an example. That is, when viewed in a plan view, no corners are formed on the substrate 1.
  • the substrate 1 has a plate-shaped substrate main body 1H and a plurality of convex portions 3 protruding from the substrate main body 1H.
  • the convex portion 3 is formed integrally with the substrate main body 1H on the surface 1A on one side in the thickness direction of the substrate main body 1H (that is, the surface facing the inside of the aircraft when used as the access door panel 200 of an aircraft). There is. In this embodiment, six convex portions 3 are provided as an example.
  • the tip surface of the convex portion 3 (the surface facing the side away from the substrate 1) is the plate surface 1S.
  • Each convex portion 3 extends linearly on the surface 1A in a direction orthogonal to the longitudinal direction of the substrate main body 1H. Further, each convex portion 3 has a rectangular cross-sectional shape.
  • the space formed between the pair of convex portions 3 adjacent to each other is a concave portion 4. That is, the concave portion 4 is a linear groove defined by a pair of convex portions 3.
  • the cross-sectional shape of the convex portion 3 triangular, it is possible to make the concave portion 4 a V-shaped or U-shaped groove.
  • a rib 5 is inserted into the recess 4 for the purpose of supplementing the strength of the resin molded panel 100.
  • the rib 5 is a plate-shaped member formed by injection molding a thermoplastic resin containing short fibers. The bonding structure between the rib 5 and the substrate 1 will be described later.
  • annular member 2 is attached to the peripheral edge of the substrate 1 so as to form an annular shape along the shape of the peripheral edge.
  • a plurality of bolt holes H are formed in the annular member 2 at equal intervals. That is, the annular member 2 forms a joint portion (joining margin) for bolting the other member (machine body) and the resin molded panel 100. The bonding structure between the annular member 2 and the substrate 1 will be described later.
  • the bonding structure of the rib 5 and the substrate 1 will be described with reference to FIG.
  • the rib 5 is inserted into the space between the pair of convex portions 3 (the above-mentioned concave portion 4).
  • the width dimension of the rib 5 is set to be equal to or slightly smaller than the separation distance between the convex portions 3.
  • the end surface (rib tip surface 5A) of the rib 5 is fused while being in surface contact with the bottom surface 4B of the recess 4.
  • the side surface of the rib 5 (rib side surface 5B: a surface extending in a direction intersecting the rib tip surface 5A) is fused while being in surface contact with the inner wall surface 4S of the recess 4.
  • the height h of the convex portion 3 is preferably x / 20 ⁇ h ⁇ 2/3 * x, where x is the width of the rib 5.
  • the height of the rib 5 is preferably equal to or less than the width (dimension in the direction orthogonal to the height direction).
  • the annular member 2 is inserted into the recess 7 formed in the peripheral edge of the substrate 1.
  • the recess 7 is a groove defined by a pair of convex portions 6 arranged at intervals from each other.
  • Each convex portion 6 forms an annular shape extending along the peripheral edge portion of the substrate main body 1H on the surface 1A of the substrate main body 1H.
  • the tip surface of each convex portion 6 (that is, the surface on the side separated from the substrate 1) is the plate surface 1S.
  • the annular member 2 has an insertion portion 2P inserted into the recess 7, a flange portion 2F protruding outward from the insertion portion 2P, and a connection portion 2C connecting the insertion portion 2P and the flange portion 2F. ing.
  • the end surface (annular member tip surface 2A) of the insertion portion 2P facing the substrate 1 side is fused while being in surface contact with the bottom surface 7B of the recess 7.
  • the side surface of the insertion portion 2P (the side surface 2B of the annular member: the surface extending in the direction intersecting the tip surface 2A of the annular member) is fused while being in surface contact with the inner wall surface 7S of the recess 7.
  • this manufacturing method includes a substrate forming step S11, a mounting member forming step S12, and a fusion step S13.
  • the substrate forming step S11 the substrate 1 is formed of the fiber reinforced resin as described above.
  • the substrate 1 including the above-mentioned substrate body 1H, the convex portion 3, and the convex portion 6 is integrally molded.
  • the mounting member 21 rib 5 and annular member 2 is formed by injection molding a thermoplastic resin containing short fibers with a predetermined mold.
  • the rib 5 and the annular member 2 are fused in a state of being inserted into the recess 4 and the recess 7, respectively. This completes all the steps of the method for manufacturing the resin molded panel 100.
  • the mounting member 21 is fused to the inner wall surfaces 4S and 7S in addition to the bottom surfaces 4B and 7B of the recesses 4 and 7. Therefore, for example, when a load is applied to the mounting member 21 in a direction away from the substrate 1, the load is borne not only between the mounting member 21 and the bottom surfaces 4B and 7B but also between the inner wall surfaces 4S and 7S. Can be done.
  • the above load acts as a shearing force along the interface between the two. Therefore, a stronger coupling force can be exhibited as compared with the case where a load in a direction perpendicular to the interface is applied.
  • the concave portions 4 and 7 can be easily formed only by forming the convex portions 3 and 6 on the surface of the substrate main body 1H.
  • the mounting member 21 and the substrate 1 are inserted into the recesses 4 and 7 and fused to the bottom surfaces 4B and 7B and the inner wall surfaces 4S and 7S of the recesses 4 and 7.
  • the resin molded panel 100 having high bonding strength with and can be easily and inexpensively manufactured.
  • the strength of the access door panel 200 is stable in an environment where a load is normally applied, including in a pressurized environment such as an aircraft. Can be maintained at.
  • a path that may cause fuel leakage is provided in addition to the bottom surface and the inner wall surface of the recess 7, and the flange portion 2F.
  • a load toward the substrate 1 side is applied to the flange portion 2F and the connecting portion 2C, compressive stress is generated on the inner wall surface on the connecting portion 2C side of the pair of inner wall surfaces of the recess 7.
  • the possibility of peeling at the interface can be further reduced as compared with the case where a tensile load is applied to the inner wall surface.
  • the substrate 1 including the convex portions 3 and 6 and the substrate main body 1H by integrally molding the substrate 1 including the convex portions 3 and 6 and the substrate main body 1H, the substrate 1 and the resin molded panel 100 can be mass-produced more easily and quickly.
  • the cutting step S11B for forming the recess 7 can also be performed. According to this method, since the recess is formed in the element body after the fact by cutting, the construction period and cost required for the preparation of the element body itself can be reduced. As a result, the resin molded panel can be manufactured more easily and inexpensively.
  • Example> The resin molded panel 100 according to the first embodiment was tested with the rib 5 having a height of 4 mm and a width of 6 mm. From the test results, it was found that the location where the stress was greatest was the interface between the substrate body 1H and the rib 5. Further, it was found that when the height of the rib 5 is made larger than 4 mm, the load applied to the rib 5 is only increased, and the overall strength cannot be expected to be improved. Further, even if the width of the rib 5 is the same size as the height (4 mm), the strength is improved by about 1.6 times.
  • the height h of the convex portion 3 is x / 20 ⁇ h ⁇ 2/3 * x when the width of the rib 5 is x, and the rib 5 It was suggested that the height should be less than or equal to the width (dimension in the direction orthogonal to the height direction).
  • a recess 4b as a groove is formed on the surface (plate surface 1S) of the substrate 1 by cutting.
  • the recess 4b has a rectangular cross-sectional shape.
  • the end surface (rib tip surface 5A) of the rib 5 is fused while being in surface contact with the bottom surface 4B of the recess 4b.
  • the side surface of the rib 5 (rib side surface 5B: a surface extending in a direction intersecting the rib tip surface 5A) is fused while being in surface contact with the inner wall surface 4S of the recess 4b.
  • annular member 2 as the mounting member 21 can also be coupled to the substrate 1 by the same configuration as described above.
  • the rib 5 (mounting member 21) is fused to the inner wall surface 4S in addition to the bottom surface 4B of the recess 4b. Therefore, for example, when a load is applied to the rib 5 in a direction away from the substrate 1, the load can be borne not only between the rib 5 and the bottom surface 4B but also between the inner wall surface 4S. In particular, between the inner wall surface 4S and the rib side surface 5B, the above load acts as a shearing force along the interface between the two. Therefore, a stronger coupling force can be exhibited as compared with the case where a load in a direction perpendicular to the interface is applied.
  • the recess 4b can be easily formed only by forming the groove on the plate surface 1S of the substrate 1. As a result, it is possible to reduce the cost and shorten the construction period.
  • the cross-sectional shape of the recess 4b'and the shape of the rib 5b are different from those of the second embodiment.
  • the pair of inner wall surfaces 4S'of the recesses 4b' are inclined in a direction closer to each other from the bottom surface 4B'side toward the plate surface 1S side (that is, the opening side of the recesses 4b').
  • the recess 4b' has a trapezoidal cross-sectional shape with the upper portion as an opening.
  • the rib 5b has a rib body 51 and a mounting portion 52 integrally formed with the rib body 51.
  • the mounting portion 52 has a trapezoidal cross-sectional shape corresponding to the recess 4b'. That is, the side surface (rib side surface 5B') of the mounting portion 52 is inclined so as to be gradually separated toward the rib tip surface 5A' side.
  • the end surface (rib tip surface 5A') of the rib 5b (mounting portion 52) is fused while being in surface contact with the bottom surface 4B'of the recess 4b'. .. Further, the side surface (rib side surface 5B') of the rib 5b (mounting portion 52) is fused while being in surface contact with the inner wall surface 4S'of the recess 4b'.
  • the inner wall surface 4S'of the recess 4b' inclines in a direction closer to each other from the bottom surface 4B'side toward the plate surface 1S side.
  • the recess 4b' has a trapezoidal cross-sectional shape that expands from the upper opening toward the bottom surface 4B'. Therefore, for example, when a load is applied to the mounting member 21 (rib 5b) in a direction away from the substrate 1, the inner wall surface 4S'and the mounting member 21 (rib 5b) engage with each other to increase the load. You can strongly resist.
  • the fourth embodiment of the present disclosure will be described with reference to FIGS. 8 and 9.
  • the same components as those in the above embodiments are designated by the same reference numerals, and detailed description thereof will be omitted.
  • the recess 4c has a circular shape in a plan view (that is, when viewed from a direction orthogonal to the plate surface 1S).
  • the recess 4c has a rectangular cross-sectional shape.
  • Such recesses 4c are arranged in a grid pattern on the plate surface 1S of the substrate 1 at intervals from each other.
  • a rib 5c as a mounting member 21 is inserted and fused into each recess 4c.
  • the rib 5c has a columnar shape having an outer diameter equal to or slightly smaller than the opening diameter of the recess 4c.
  • the outer peripheral surface 5cB of the rib 5c is fused while being in surface contact with the inner peripheral surface (inner wall surface 4cS) of the recess 4c.
  • the tip surface of the rib 5c (rib tip surface 5cA) is fused while being in surface contact with the bottom surface 4cB of the recess 4c.
  • the recesses 4c are circular, the recesses 4c can be easily formed only by drilling the plate surface 1S. .. As a result, it is possible to reduce the cost and shorten the construction period.
  • the resin molded panel 100 is made of a fiber-reinforced resin containing continuous fibers and a thermoplastic resin, and is made of a substrate 1 in which recesses 4 and 7 recessed from the plate surface are formed, and a thermoplastic resin. It is configured and has a mounting member 21 that is inserted into the recesses 4 and 7 and fused to the bottom surfaces 4B and 7B of the recesses 4 and 7 and the inner wall surfaces 4S and 7S.
  • the mounting member 21 is fused to the inner wall surfaces 4S and 7S in addition to the bottom surfaces 4B and 7B of the recesses 4 and 7. Therefore, for example, when a load is applied to the mounting member 21 in a direction away from the substrate 1, the load is borne not only between the mounting member 21 and the bottom surfaces 4B and 7B but also between the inner wall surfaces 4S and 7S. Can be done.
  • the above load acts as a shearing force along the interface between the two. Therefore, a stronger coupling force can be exhibited as compared with the case where a load in a direction perpendicular to the interface is applied.
  • the substrate 1 projects from the substrate main body 1H and the surface 1A of the substrate main body 1H, and the tip surface forms the plate surface 1S and the substrate main body. It has a plurality of convex portions 3 and 6 that form the concave portions 4 and 7 by being adjacent to each other at intervals in the spreading direction of 1H.
  • the concave portions 4 and 7 can be easily formed only by forming the convex portions 3 and 6 on the surface 1A of the substrate main body 1H.
  • the recess 4b is a groove that is recessed from the plate surface 1S and extends in the expanding direction of the substrate 1.
  • the recess 4b can be easily formed only by forming the groove on the plate surface 1S.
  • the pair of inner wall surfaces 4S'of the recesses 4b' inclinate in a direction closer to each other from the bottom surface 4B'side toward the plate surface 1S side. ing.
  • the inner wall surface 4S'of the recess 4b' inclins in a direction closer to each other from the bottom surface 4B'side toward the plate surface 1S side, so that the recess 4b'is inclined from the upper opening to the bottom surface 4B'side. It has a trapezoidal cross-sectional shape that expands toward. Therefore, for example, when a load is applied to the mounting member 21 in a direction away from the substrate 1, the inner wall surface 4S'and the mounting member 21 engage with each other to more strongly resist the load.
  • the recess 4c has a circular shape when viewed from a direction orthogonal to the plate surface 1S.
  • the recess 4c is circular, the recess 4c can be easily formed only by drilling the plate surface 1S.
  • the mounting member 21 is a rib 5 for supplementing the strength of the substrate 1.
  • the strength of the resin molded panel 100 can be increased by providing the mounting member 21 as the rib 5.
  • the mounting member 21 extends in an annular shape along the peripheral edge portion of the substrate 1 to form a joint portion for joining the substrate 1 to another member. I'm doing it.
  • the mounting member 21 is provided as a joint portion, the resin molded panel 100 can be easily and firmly joined to another member.
  • the mounting member 21 projects outward from the insertion portion 2P inserted into the recess 7 and the insertion portion 2P, and extends onto the plate surface 1S. It has a flange portion 2F that comes into contact with the insert portion 2P, and a connection portion 2C that connects the insertion portion 2P and the flange portion 2F.
  • a path that may cause fuel leakage is provided in addition to the bottom surface and the inner wall surface of the recess 7, and the flange portion 2F.
  • a load toward the substrate 1 side is applied to the flange portion 2F and the connecting portion 2C, compressive stress is generated on the inner wall surface on the connecting portion 2C side of the pair of inner wall surfaces of the recess 7.
  • the possibility of peeling at the interface can be further reduced as compared with the case where a tensile load is applied to the inner wall surface.
  • the protrusion dimension of the convex portion 3 from the surface of the substrate main body 1H is x / 20 ⁇ h ⁇ 2 when the width of the rib 5 is x. It is / 3 * x, and the height of the rib 5 is equal to or less than the width of the rib 5.
  • the possibility that the rib 5 is peeled off from the substrate body 1H can be further reduced.
  • the recesses 4 are formed in plurality at intervals from each other, and have a plurality of mounting members 21 inserted into the plurality of recesses 4 one by one.
  • the strength of the resin molded panel 100 can be further improved in a wider range.
  • the recesses 4 are arranged in a grid pattern on the plate surface at intervals from each other.
  • the strength of the resin molded panel 100 can be further improved in a wider range.
  • the access door panel 200 according to the twelfth aspect is formed by the resin molded panel 100 according to any one of the above aspects, and the substrate 1 forms a part of the surface of the machine body and is formed on the surface. The opening is closed by the substrate 1.
  • the resin molded panel 100 is used as the access door panel 200, the strength of the access door panel 200 is stably maintained in an environment where a load is normally applied, including in a pressurized environment such as an aircraft. can do.
  • the method for manufacturing the resin molded panel 100 according to the thirteenth aspect is a substrate 1 composed of a fiber-reinforced resin containing continuous fibers and a thermoplastic resin, and having recesses 4 and 7 recessed from the plate surface 1S.
  • a resin molded panel made of a thermoplastic resin and having a mounting member 21 inserted into the recesses 4 and 7 and fused to the bottom surfaces 4B and 7B of the recesses 4 and 7 and the inner wall surfaces 4S and 7S.
  • the substrate forming step S11 for forming the substrate 1 the mounting member forming step S12 for forming the mounting member 21 by injection molding, and the mounting member 21 are inserted into the recesses 4 and 7.
  • a fusion step S13 for fusing to the bottom surfaces 4B and 7B and the inner wall surfaces 4S and 7S is included.
  • the mounting member 21 is inserted into the recesses 4 and 7 and fused to the bottom surfaces 4B and 7B of the recesses 4 and 7 and the inner wall surfaces 4S and 7S to bond the mounting member 21 and the substrate 1.
  • the resin molded panel 100 having high strength can be easily and inexpensively manufactured.
  • the substrate 1 is integrally molded by impregnating the continuous fibers with the thermoplastic resin.
  • the substrate by integrally molding the substrate 1, the substrate can be mass-produced more easily and quickly.
  • the substrate forming step S11 includes a body preparation step S11A for preparing a body formed of the fiber reinforced resin and cutting into the body.
  • a cutting step S11B for forming the recesses 4 and 7 on the plate surface 1S by processing is further included.
  • the recess is formed in the body after the fact by cutting, the construction period and cost required for the preparation of the body itself can be reduced. As a result, the resin molded panel 100 can be manufactured more easily and inexpensively.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Architecture (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Transportation (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Panels For Use In Building Construction (AREA)
  • Moulding By Coating Moulds (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The resin formed panel comprises: a base plate constituted from a fiber reinforced resin containing a continuous fiber and a thermoplastic resin, wherein a recessed portion recessing from the plate surface has been formed; and an attachment member constituted from a thermoplastic resin, and inserted into the recessed portion while being fused to the bottom surface and inner wall surfaces of the recessed portion. This constitution allows a resin formed panel and an access door panel to be provided, which allow strength to be maintained more stably.

Description

樹脂成形パネル、アクセスドアパネル、及び樹脂成形パネルの製造方法Manufacturing method of resin molded panel, access door panel, and resin molded panel
　本開示は、樹脂成形パネル、アクセスドアパネル、及び樹脂成形パネルの製造方法に関する。
　本願は、２０２０年１月２１日に日本に出願された特願２０２０－００７４６６号について優先権を主張し、その内容をここに援用する。 The present disclosure relates to a resin molded panel, an access door panel, and a method for manufacturing a resin molded panel.
The present application claims priority with respect to Japanese Patent Application No. 2020-007466 filed in Japan on January 21, 2020, the contents of which are incorporated herein by reference.
　例えば航空機を含む輸送機械や、タービンを含む回転機械の機体には、メンテナンス等を行う際に内部にアクセスするための開口部が形成されている。この開口部は、通常時にはパネル（アクセスドアパネル）によって閉塞されている。このようなパネルの一例として、下記特許文献１に記載されたものが知られている。 For example, the fuselage of a transportation machine including an aircraft and a rotating machine including a turbine has an opening for accessing the inside when performing maintenance or the like. This opening is normally closed by a panel (access door panel). As an example of such a panel, the one described in Patent Document 1 below is known.
　特許文献１に記載されたパネルは、複合材料によって形成された板状の構造部材と、この構造部材の表面に沿って延びる補剛材と、を備えている。補剛材は、構造部材の表面に沿って広がる接着層のみを介して結合されている。 The panel described in Patent Document 1 includes a plate-shaped structural member formed of a composite material and a stiffener extending along the surface of the structural member. The stiffeners are joined only through an adhesive layer that extends along the surface of the structural member.
特表２０１４－５１０８７９号公報Japanese Patent Application Laid-Open No. 2014-510879
　しかしながら、上記のように補剛材を構造部材に接着しただけでは十分な結合強度が得られない虞がある。特に、航空機の機体では、与圧によって機体の内側から外側に荷重が加わる。このような荷重に耐え切れずに、補剛材が構造部材から脱落する虞がある。その結果、特許文献１に記載された技術では、パネルの強度を安定的に維持できない可能性がある。 However, there is a risk that sufficient bonding strength cannot be obtained simply by adhering the stiffener to the structural member as described above. In particular, in the airframe of an aircraft, a load is applied from the inside to the outside of the airframe by pressurization. The stiffener may fall off from the structural member without being able to withstand such a load. As a result, the technique described in Patent Document 1 may not be able to stably maintain the strength of the panel.
　本開示は上記課題を解決するためになされたものであって、より安定的に強度を維持することが可能な樹脂成形パネル、アクセスドアパネル、及び樹脂成形パネルの製造方法を提供することを目的とする。 The present disclosure has been made in order to solve the above problems, and an object of the present disclosure is to provide a resin molded panel, an access door panel, and a method for manufacturing a resin molded panel capable of maintaining strength more stably. do.
　上記課題を解決するために、本開示に係る樹脂成形パネルは、連続繊維及び熱可塑性樹脂を含む繊維強化樹脂から構成され、板面から凹む凹部が形成された基板と、熱可塑性樹脂から構成され、前記凹部に挿入されているとともに該凹部の底面及び内壁面に融着されている取付部材と、を有する。 In order to solve the above problems, the resin molded panel according to the present disclosure is composed of a fiber reinforced resin containing continuous fibers and a thermoplastic resin, and is composed of a substrate having recesses formed from the plate surface and a thermoplastic resin. It has a mounting member that is inserted into the recess and fused to the bottom surface and the inner wall surface of the recess.
　本開示に係る樹脂成形パネルの製造方法は、連続繊維及び熱可塑性樹脂を含む繊維強化樹脂から構成され、板面から凹む凹部が形成された基板と、熱可塑性樹脂から構成され、前記凹部に挿入されているとともに該凹部の底面及び内壁面に融着されている取付部材と、を有する樹脂成形パネルの製造方法であって、前記基板を形成する基板形成工程と、射出成形によって前記取付部材を形成する取付部材形成工程と、前記取付部材を、前記凹部に挿入して前記底面及び前記内壁面に融着する融着工程と、を含む。 The method for manufacturing a resin molded panel according to the present disclosure is composed of a substrate made of a fiber-reinforced resin containing continuous fibers and a thermoplastic resin, and having a recess formed from a plate surface, and a thermoplastic resin, which is inserted into the recess. It is a method of manufacturing a resin molded panel having a mounting member that is fused to the bottom surface and the inner wall surface of the recess, and the mounting member is formed by a substrate forming step of forming the substrate and injection molding. It includes a mounting member forming step of forming and a fusion step of inserting the mounting member into the recess and fusing the mounting member to the bottom surface and the inner wall surface.
　本開示によれば、より安定的に強度を維持することが可能な樹脂成形パネル、アクセスドアパネル、及び樹脂成形パネルの製造方法を提供することができる。 According to the present disclosure, it is possible to provide a resin molded panel, an access door panel, and a method for manufacturing a resin molded panel capable of maintaining strength more stably.
本開示の第一実施形態に係る樹脂成形パネルの構成を示す平面図である。It is a top view which shows the structure of the resin molded panel which concerns on 1st Embodiment of this disclosure. 図１のＡ－Ａ線における断面図である。FIG. 5 is a cross-sectional view taken along the line AA of FIG. 図１のＢ－Ｂ線における断面図である。It is sectional drawing in BB line of FIG. 本開示の第一実施形態に係る樹脂成形パネルの製造方法の各工程を示すフローチャートである。It is a flowchart which shows each process of the manufacturing method of the resin molded panel which concerns on 1st Embodiment of this disclosure. 本開示の第一実施形態に係る樹脂成形パネルの製造方法の変形例を示すフローチャートである。It is a flowchart which shows the modification of the manufacturing method of the resin molded panel which concerns on 1st Embodiment of this disclosure. 本開示の第二実施形態に係る樹脂成形パネルの断面図である。It is sectional drawing of the resin molded panel which concerns on 2nd Embodiment of this disclosure. 本開示の第三実施形態に係る樹脂成形パネルの断面図である。It is sectional drawing of the resin molded panel which concerns on 3rd Embodiment of this disclosure. 本開示の第四実施形態に係る樹脂成形パネルの平面図である。It is a top view of the resin molded panel which concerns on 4th Embodiment of this disclosure. 図８のＣ－Ｃ線における断面図である。FIG. 5 is a cross-sectional view taken along the line CC of FIG.
＜第一実施形態＞
（樹脂成形パネルの構成）
　以下、本開示の第一実施形態に係る樹脂成形パネル１００、及び樹脂成形パネル１００の製造方法について、図１から図４を参照して説明する。本実施形態に係る樹脂成形パネル１００は、例えば航空機の機体や、風力発電用タービンのケーシング等に形成されたアクセスハッチ（開口部）を閉塞するためのアクセスドアパネル２００として用いられる。特に、航空機の燃料タンクにアクセスするためのアクセスハッチのように、軽量かつ高強度が求められる部分に好適に用いられる。 <First Embodiment>
(Construction of resin molded panel)
Hereinafter, the resin molded panel 100 and the method for manufacturing the resin molded panel 100 according to the first embodiment of the present disclosure will be described with reference to FIGS. 1 to 4. The resin molded panel 100 according to the present embodiment is used as an access door panel 200 for closing an access hatch (opening) formed in, for example, an aircraft body or a casing of a wind turbine for wind power generation. In particular, it is preferably used in parts where light weight and high strength are required, such as an access hatch for accessing an aircraft fuel tank.
　図１に示すように、この樹脂成形パネル１００は、基板１と、取付部材２１としてのリブ５、及び環状部材２と、を備える。基板１は、繊維強化樹脂で構成された板状をなしている。具体的には、この基板１は、連続繊維で形成されたプリプレグに、熱可塑性樹脂を含浸させることによって形成されている。基板１は、一例として楕円形状をなしている。つまり、平面視した場合、基板１には角部が形成されていない。航空機のアクセスドアパネル２００として樹脂成形パネル１００を用いる場合、与圧による応力集中を防ぐためにこのような角部を有しない形状とすることが特に望ましい。 As shown in FIG. 1, the resin molded panel 100 includes a substrate 1, a rib 5 as a mounting member 21, and an annular member 2. The substrate 1 has a plate shape made of a fiber reinforced resin. Specifically, the substrate 1 is formed by impregnating a prepreg formed of continuous fibers with a thermoplastic resin. The substrate 1 has an elliptical shape as an example. That is, when viewed in a plan view, no corners are formed on the substrate 1. When the resin molded panel 100 is used as the access door panel 200 of an aircraft, it is particularly desirable to have a shape having no such corners in order to prevent stress concentration due to pressurization.
　基板１は、板状の基板本体１Ｈと、この基板本体１Ｈから突出する複数の凸部３と、を有している。凸部３は、基板本体１Ｈの厚さ方向における一方側の表面１Ａ（つまり、航空機のアクセスドアパネル２００として用いられる場合には機内側を向く面）に、当該基板本体１Ｈと一体に形成されている。本実施形態では、一例として６つの凸部３が設けられている。凸部３の先端面（基板１から離間する側を向く面）は、板面１Ｓとされている。 The substrate 1 has a plate-shaped substrate main body 1H and a plurality of convex portions 3 protruding from the substrate main body 1H. The convex portion 3 is formed integrally with the substrate main body 1H on the surface 1A on one side in the thickness direction of the substrate main body 1H (that is, the surface facing the inside of the aircraft when used as the access door panel 200 of an aircraft). There is. In this embodiment, six convex portions 3 are provided as an example. The tip surface of the convex portion 3 (the surface facing the side away from the substrate 1) is the plate surface 1S.
　各凸部３は、表面１Ａ上で基板本体１Ｈの長手方向と直交する方向に直線状に延びている。また、各凸部３は、矩形の断面形状を有している。互いに隣接する一対の凸部３同士の間に形成される空間は凹部４とされている。つまり、この凹部４は、一対の凸部３によって画定される直線状の溝である。なお、凸部３の断面形状を三角形状にすることで、凹部４をＶ字状やＵ字状の溝とすることも可能である。この凹部４には、樹脂成形パネル１００の強度を補填することを目的としてリブ５が挿入されている。リブ５は、短繊維を含む熱可塑性樹脂を射出成形することによって形成された板状の部材である。リブ５と基板１の結合構造については後述する。 Each convex portion 3 extends linearly on the surface 1A in a direction orthogonal to the longitudinal direction of the substrate main body 1H. Further, each convex portion 3 has a rectangular cross-sectional shape. The space formed between the pair of convex portions 3 adjacent to each other is a concave portion 4. That is, the concave portion 4 is a linear groove defined by a pair of convex portions 3. By making the cross-sectional shape of the convex portion 3 triangular, it is possible to make the concave portion 4 a V-shaped or U-shaped groove. A rib 5 is inserted into the recess 4 for the purpose of supplementing the strength of the resin molded panel 100. The rib 5 is a plate-shaped member formed by injection molding a thermoplastic resin containing short fibers. The bonding structure between the rib 5 and the substrate 1 will be described later.
　基板１の周縁部には、当該周縁部の形状に沿って環状をなす環状部材２が取り付けられている。環状部材２には、等間隔をあけて複数のボルト孔Ｈが形成されている。つまり、この環状部材２は、他の部材（機体）と樹脂成形パネル１００とをボルト結合するための接合部（接合しろ）をなしている。環状部材２と基板１の結合構造については後述する。 An annular member 2 is attached to the peripheral edge of the substrate 1 so as to form an annular shape along the shape of the peripheral edge. A plurality of bolt holes H are formed in the annular member 2 at equal intervals. That is, the annular member 2 forms a joint portion (joining margin) for bolting the other member (machine body) and the resin molded panel 100. The bonding structure between the annular member 2 and the substrate 1 will be described later.
（リブの構成）
　次に、図２を参照して、リブ５と基板１の結合構造について説明する。同図に示すように、リブ５は、一対の凸部３同士の間の空間（上述の凹部４）に挿入されている。リブ５の幅方向の寸法は、凸部３同士の間の離間距離と等しいか、又はわずかに小さく設定されている。リブ５が凹部４内に挿入されている状態では、リブ５の端面（リブ先端面５Ａ）は、凹部４の底面４Ｂに面接触しつつ、融着されている。また、リブ５の側面（リブ側面５Ｂ：リブ先端面５Ａに交差する方向に広がる面）は、凹部４の内壁面４Ｓに面接触しつつ、融着されている。なお、凸部３の高さｈ（表面１Ａからの突出寸法）は、リブ５の幅をｘとしたとき、ｘ／２０≦ｈ≦２／３＊ｘであることが望ましい。リブ５の高さは、幅（高さ方向に直交する方向の寸法）以下であることが望ましい。 (Rib composition)
Next, the bonding structure of the rib 5 and the substrate 1 will be described with reference to FIG. As shown in the figure, the rib 5 is inserted into the space between the pair of convex portions 3 (the above-mentioned concave portion 4). The width dimension of the rib 5 is set to be equal to or slightly smaller than the separation distance between the convex portions 3. In the state where the rib 5 is inserted into the recess 4, the end surface (rib tip surface 5A) of the rib 5 is fused while being in surface contact with the bottom surface 4B of the recess 4. Further, the side surface of the rib 5 (rib side surface 5B: a surface extending in a direction intersecting the rib tip surface 5A) is fused while being in surface contact with the inner wall surface 4S of the recess 4. The height h of the convex portion 3 (protruding dimension from the surface 1A) is preferably x / 20 ≦ h ≦ 2/3 * x, where x is the width of the rib 5. The height of the rib 5 is preferably equal to or less than the width (dimension in the direction orthogonal to the height direction).
（環状部材の構成）
　続いて、図３を参照して、環状部材２と基板１の結合構造について説明する。同図に示すように、環状部材２は、基板１の周縁部に形成された凹部７に挿入されている。凹部７は、互いに間隔をあけて配置された一対の凸部６によって画定される溝である。各凸部６は、基板本体１Ｈの表面１Ａ上で、当該基板本体１Ｈの周縁部に沿って延びる環状をなしている。各凸部６の先端面（つまり、基板１から離間する側の面）は板面１Ｓとされている。 (Structure of annular member)
Subsequently, the bonding structure of the annular member 2 and the substrate 1 will be described with reference to FIG. As shown in the figure, the annular member 2 is inserted into the recess 7 formed in the peripheral edge of the substrate 1. The recess 7 is a groove defined by a pair of convex portions 6 arranged at intervals from each other. Each convex portion 6 forms an annular shape extending along the peripheral edge portion of the substrate main body 1H on the surface 1A of the substrate main body 1H. The tip surface of each convex portion 6 (that is, the surface on the side separated from the substrate 1) is the plate surface 1S.
　環状部材２は、凹部７に挿入される挿入部２Ｐと、当該挿入部２Ｐから外側に向かって張り出すフランジ部２Ｆと、挿入部２Ｐ及びフランジ部２Ｆを接続する接続部２Ｃと、を有している。挿入部２Ｐが凹部７に挿入されている状態では、挿入部２Ｐの基板１側を向く端面（環状部材先端面２Ａ）は、凹部７の底面７Ｂに面接触しつつ、融着されている。また、挿入部２Ｐの側面（環状部材側面２Ｂ：環状部材先端面２Ａに交差する方向に広がる面）は、凹部７の内壁面７Ｓに面接触しつつ、融着されている。 The annular member 2 has an insertion portion 2P inserted into the recess 7, a flange portion 2F protruding outward from the insertion portion 2P, and a connection portion 2C connecting the insertion portion 2P and the flange portion 2F. ing. In the state where the insertion portion 2P is inserted into the recess 7, the end surface (annular member tip surface 2A) of the insertion portion 2P facing the substrate 1 side is fused while being in surface contact with the bottom surface 7B of the recess 7. Further, the side surface of the insertion portion 2P (the side surface 2B of the annular member: the surface extending in the direction intersecting the tip surface 2A of the annular member) is fused while being in surface contact with the inner wall surface 7S of the recess 7.
（樹脂成形パネルの製造方法）
　次いで、樹脂成形パネル１００の製造方法について、図４を参照して説明する。同図に示すように、この製造方法は、基板形成工程Ｓ１１と、取付部材形成工程Ｓ１２と、融着工程Ｓ１３と、を含む。基板形成工程Ｓ１１では、上述のように繊維強化樹脂によって基板１を形成する。この工程で、上述の基板本体１Ｈ、凸部３、及び凸部６を含む基板１が一体成形される。後続の取付部材形成工程Ｓ１２では、短繊維を含む熱可塑性樹脂を所定の金型によって射出成形することで、取付部材２１（リブ５と環状部材２）が形成される。その後、融着工程Ｓ１３では、リブ５、及び環状部材２を、それぞれ凹部４、及び凹部７に挿入した状態で融着させる。以上で、樹脂成形パネル１００の製造方法の全工程が完了する。 (Manufacturing method of resin molded panel)
Next, a method for manufacturing the resin molded panel 100 will be described with reference to FIG. As shown in the figure, this manufacturing method includes a substrate forming step S11, a mounting member forming step S12, and a fusion step S13. In the substrate forming step S11, the substrate 1 is formed of the fiber reinforced resin as described above. In this step, the substrate 1 including the above-mentioned substrate body 1H, the convex portion 3, and the convex portion 6 is integrally molded. In the subsequent mounting member forming step S12, the mounting member 21 (rib 5 and annular member 2) is formed by injection molding a thermoplastic resin containing short fibers with a predetermined mold. After that, in the fusion step S13, the rib 5 and the annular member 2 are fused in a state of being inserted into the recess 4 and the recess 7, respectively. This completes all the steps of the method for manufacturing the resin molded panel 100.
（作用効果）
　上記構成によれば、取付部材２１が凹部４、７の底面４Ｂ、７Ｂに加えて、内壁面４Ｓ、７Ｓに対して融着されている。したがって、例えば取付部材２１に基板１から離れる方向への荷重が加わった場合、取付部材２１と底面４Ｂ、７Ｂとの間に加えて、内壁面４Ｓ、７Ｓとの間でも当該荷重を負担することができる。特に、内壁面４Ｓ、７Ｓと取付部材２１との間では、上記の荷重は両者の界面に沿ってせん断力として働く。したがって、界面に垂直な方向の荷重を負担する場合に比べて、より強い結合力を発揮することができる。 (Action effect)
According to the above configuration, the mounting member 21 is fused to the inner wall surfaces 4S and 7S in addition to the bottom surfaces 4B and 7B of the recesses 4 and 7. Therefore, for example, when a load is applied to the mounting member 21 in a direction away from the substrate 1, the load is borne not only between the mounting member 21 and the bottom surfaces 4B and 7B but also between the inner wall surfaces 4S and 7S. Can be done. In particular, between the inner wall surfaces 4S and 7S and the mounting member 21, the above load acts as a shearing force along the interface between the two. Therefore, a stronger coupling force can be exhibited as compared with the case where a load in a direction perpendicular to the interface is applied.
　さらに、上記構成によれば、基板本体１Ｈの表面に凸部３、６を形成することのみによって、容易に凹部４、７を形成することができる。 Further, according to the above configuration, the concave portions 4 and 7 can be easily formed only by forming the convex portions 3 and 6 on the surface of the substrate main body 1H.
　加えて、上記構成によれば、凹部４、７に取付部材２１を挿入し、当該凹部４、７の底面４Ｂ、７Ｂ及び内壁面４Ｓ、７Ｓに融着することで、取付部材２１と基板１との結合強度が高い樹脂成形パネル１００を容易かつ安価に製造することができる。 In addition, according to the above configuration, the mounting member 21 and the substrate 1 are inserted into the recesses 4 and 7 and fused to the bottom surfaces 4B and 7B and the inner wall surfaces 4S and 7S of the recesses 4 and 7. The resin molded panel 100 having high bonding strength with and can be easily and inexpensively manufactured.
　さらに、上記構成によれば、アクセスドアパネル２００として樹脂成形パネル１００を用いていることから、例えば航空機等の与圧環境下を含め、荷重が常態的に加わる環境でアクセスドアパネル２００の強度を安定的に維持することができる。 Further, according to the above configuration, since the resin molded panel 100 is used as the access door panel 200, the strength of the access door panel 200 is stable in an environment where a load is normally applied, including in a pressurized environment such as an aircraft. Can be maintained at.
　上記構成によれば、樹脂成形パネル１００の内側に例えば燃料タンク等が配置されている場合に、燃料の漏れを生じる虞のある経路が、凹部７の底面と内壁面に加えて、フランジ部２Ｆが当接する板面１Ｓを含む３面となる。これにより、漏れが生じる可能性をより一層低減することができる。また、フランジ部２Ｆ及び接続部２Ｃに対して基板１側に向かう荷重が加わった場合、凹部７の一対の内壁面のうち、接続部２Ｃ側の内壁面では圧縮応力が生じることとなる。これにより、当該内壁面に引張り荷重が加わる場合に比べて、界面での剥離が生じる可能性をさらに低減することができる。 According to the above configuration, when a fuel tank or the like is arranged inside the resin molded panel 100, a path that may cause fuel leakage is provided in addition to the bottom surface and the inner wall surface of the recess 7, and the flange portion 2F. There are three surfaces including the plate surface 1S with which the surface is in contact. This makes it possible to further reduce the possibility of leakage. Further, when a load toward the substrate 1 side is applied to the flange portion 2F and the connecting portion 2C, compressive stress is generated on the inner wall surface on the connecting portion 2C side of the pair of inner wall surfaces of the recess 7. As a result, the possibility of peeling at the interface can be further reduced as compared with the case where a tensile load is applied to the inner wall surface.
　また、上記方法によれば、凸部３、６と基板本体１Ｈとを含む基板１を一体成形することで、より容易かつ迅速に当該基板１、及び樹脂成形パネル１００を量産することができる。 Further, according to the above method, by integrally molding the substrate 1 including the convex portions 3 and 6 and the substrate main body 1H, the substrate 1 and the resin molded panel 100 can be mass-produced more easily and quickly.
　なお、図５に示すように、上述の基板形成工程Ｓ１１では、繊維強化樹脂で形成された板状の素体を準備する素体準備工程Ｓ１１Ａと、素体に切削加工を施すことで凹部４、及び凹部７を形成する切削工程Ｓ１１Ｂを実行することも可能である。この方法によれば、切削加工によって素体に事後的に凹部を形成することから、素体そのものの準備に要する工期やコストを削減することができる。これにより、より容易かつ安価に樹脂成形パネルを製造することができる。 As shown in FIG. 5, in the above-mentioned substrate forming step S11, a body preparation step S11A for preparing a plate-shaped body formed of a fiber reinforced resin and a recess 4 by cutting the body. , And the cutting step S11B for forming the recess 7 can also be performed. According to this method, since the recess is formed in the element body after the fact by cutting, the construction period and cost required for the preparation of the element body itself can be reduced. As a result, the resin molded panel can be manufactured more easily and inexpensively.
＜実施例＞
　上記第一実施形態に係る樹脂成形パネル１００について、リブ５の高さを４ｍｍとし、幅を６ｍｍとして試験を行った。試験の結果から、応力が最も大きくなる箇所は、基板本体１Ｈとリブ５の界面であることが分かった。また、リブ５の高さを４ｍｍよりも大きくした場合、リブ５に付加される荷重が大きくなるのみであり、全体の強度向上は見込めないことが分かった。さらに、リブ５の幅は、高さと同等の大きさ（４ｍｍ）でも１．６倍程度の強度向上が見られた。一方で、リブ５の幅が高さよりも小さい場合、上述の界面における応力が過度に大きくなり、全体として強度が低下することが分かった。以上により、凸部３の高さｈ（表面１Ａからの突出寸法）は、リブ５の幅をｘとしたとき、ｘ／２０≦ｈ≦２／３＊ｘであることが望ましく、リブ５の高さは、幅（高さ方向に直交する方向の寸法）以下とすることが望ましいことが導かれた。 <Example>
The resin molded panel 100 according to the first embodiment was tested with the rib 5 having a height of 4 mm and a width of 6 mm. From the test results, it was found that the location where the stress was greatest was the interface between the substrate body 1H and the rib 5. Further, it was found that when the height of the rib 5 is made larger than 4 mm, the load applied to the rib 5 is only increased, and the overall strength cannot be expected to be improved. Further, even if the width of the rib 5 is the same size as the height (4 mm), the strength is improved by about 1.6 times. On the other hand, it was found that when the width of the rib 5 is smaller than the height, the stress at the above-mentioned interface becomes excessively large, and the strength as a whole decreases. From the above, it is desirable that the height h of the convex portion 3 (protruding dimension from the surface 1A) is x / 20 ≦ h ≦ 2/3 * x when the width of the rib 5 is x, and the rib 5 It was suggested that the height should be less than or equal to the width (dimension in the direction orthogonal to the height direction).
＜第二実施形態＞
　次に、本開示の第二実施形態について、図６を参照して説明する。なお、上記の第一実施形態と同様の構成については同一の符号を付し、詳細な説明を省略する。 <Second embodiment>
Next, the second embodiment of the present disclosure will be described with reference to FIG. The same components as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.
　上述の第一実施形態では、基板本体１Ｈの表面１Ａに凸部３を設けることによって凹部４が形成されている例について説明した。一方で、本実施形態では、図６に示すように、基板１の表面（板面１Ｓ）に、切削加工を施すことで溝としての凹部４ｂが形成されている。この凹部４ｂは矩形の断面形状を有している。凹部４ｂに取付部材２１としてのリブ５が挿入されている状態では、リブ５の端面（リブ先端面５Ａ）は、凹部４ｂの底面４Ｂに面接触しつつ、融着されている。また、リブ５の側面（リブ側面５Ｂ：リブ先端面５Ａに交差する方向に広がる面）は、凹部４ｂの内壁面４Ｓに面接触しつつ、融着されている。 In the above-described first embodiment, an example in which the concave portion 4 is formed by providing the convex portion 3 on the surface 1A of the substrate main body 1H has been described. On the other hand, in the present embodiment, as shown in FIG. 6, a recess 4b as a groove is formed on the surface (plate surface 1S) of the substrate 1 by cutting. The recess 4b has a rectangular cross-sectional shape. In a state where the rib 5 as the mounting member 21 is inserted into the recess 4b, the end surface (rib tip surface 5A) of the rib 5 is fused while being in surface contact with the bottom surface 4B of the recess 4b. Further, the side surface of the rib 5 (rib side surface 5B: a surface extending in a direction intersecting the rib tip surface 5A) is fused while being in surface contact with the inner wall surface 4S of the recess 4b.
　なお、詳しい説明は省略するが、取付部材２１としての環状部材２も、上記と同様の構成によって基板１に結合することが可能である。 Although detailed description is omitted, the annular member 2 as the mounting member 21 can also be coupled to the substrate 1 by the same configuration as described above.
　上記構成によれば、リブ５（取付部材２１）が凹部４ｂの底面４Ｂに加えて、内壁面４Ｓに対して融着されている。したがって、例えばリブ５に基板１から離れる方向への荷重が加わった場合、リブ５と底面４Ｂとの間に加えて、内壁面４Ｓとの間でも当該荷重を負担することができる。特に、内壁面４Ｓとリブ側面５Ｂとの間では、上記の荷重は両者の界面に沿ってせん断力として働く。したがって、界面に垂直な方向の荷重を負担する場合に比べて、より強い結合力を発揮することができる。 According to the above configuration, the rib 5 (mounting member 21) is fused to the inner wall surface 4S in addition to the bottom surface 4B of the recess 4b. Therefore, for example, when a load is applied to the rib 5 in a direction away from the substrate 1, the load can be borne not only between the rib 5 and the bottom surface 4B but also between the inner wall surface 4S. In particular, between the inner wall surface 4S and the rib side surface 5B, the above load acts as a shearing force along the interface between the two. Therefore, a stronger coupling force can be exhibited as compared with the case where a load in a direction perpendicular to the interface is applied.
　さらに、上記構成によれば、基板１の板面１Ｓに溝を形成することのみによって、容易に凹部４ｂを形成することができる。これにより、コストの削減と工期の短縮を実現することができる。 Further, according to the above configuration, the recess 4b can be easily formed only by forming the groove on the plate surface 1S of the substrate 1. As a result, it is possible to reduce the cost and shorten the construction period.
＜第三実施形態＞
　次いで、本開示の第三実施形態について、図７を参照して説明する。なお、上記の各実施形態と同様の構成については同一の符号を付し、詳細な説明を省略する。 <Third Embodiment>
Next, the third embodiment of the present disclosure will be described with reference to FIG. The same components as those in the above embodiments are designated by the same reference numerals, and detailed description thereof will be omitted.
　同図に示すように、本実施形態では、上記第二実施形態に比べて、凹部４ｂ´の断面形状、及びリブ５ｂの形状が異なっている。凹部４ｂ´の一対の内壁面４Ｓ´は、底面４Ｂ´側から板面１Ｓ側（つまり、凹部４ｂ´の開口部側）に向かうに従って互いに近接する方向に傾斜している。これにより、凹部４ｂ´は、上部を開口部とする台形状の断面形状を有している。 As shown in the figure, in the present embodiment, the cross-sectional shape of the recess 4b'and the shape of the rib 5b are different from those of the second embodiment. The pair of inner wall surfaces 4S'of the recesses 4b' are inclined in a direction closer to each other from the bottom surface 4B'side toward the plate surface 1S side (that is, the opening side of the recesses 4b'). As a result, the recess 4b'has a trapezoidal cross-sectional shape with the upper portion as an opening.
　リブ５ｂは、リブ本体５１と、このリブ本体５１と一体に形成された取付部５２と、を有している。取付部５２は、上記の凹部４ｂ´に対応した台形の断面形状を有している。つまり、取付部５２の側面（リブ側面５Ｂ´）は、リブ先端面５Ａ´側に向かうに従って次第に離間するように傾斜している。 The rib 5b has a rib body 51 and a mounting portion 52 integrally formed with the rib body 51. The mounting portion 52 has a trapezoidal cross-sectional shape corresponding to the recess 4b'. That is, the side surface (rib side surface 5B') of the mounting portion 52 is inclined so as to be gradually separated toward the rib tip surface 5A' side.
　リブ５ｂが凹部４ｂ´に挿入されている状態では、リブ５ｂ（取付部５２）の端面（リブ先端面５Ａ´）は、凹部４ｂ´の底面４Ｂ´に面接触しつつ、融着されている。また、リブ５ｂ（取付部５２）の側面（リブ側面５Ｂ´）は、凹部４ｂ´の内壁面４Ｓ´に面接触しつつ、融着されている。 In the state where the rib 5b is inserted into the recess 4b', the end surface (rib tip surface 5A') of the rib 5b (mounting portion 52) is fused while being in surface contact with the bottom surface 4B'of the recess 4b'. .. Further, the side surface (rib side surface 5B') of the rib 5b (mounting portion 52) is fused while being in surface contact with the inner wall surface 4S'of the recess 4b'.
　上記構成によれば、凹部４ｂ´の内壁面４Ｓ´が底面４Ｂ´側から板面１Ｓ側に向かうに従って互いに近接する方向に傾斜している。これにより、凹部４ｂ´は上部の開口部から底面４Ｂ´側に向かうに従って拡大する台形の断面形状を有している。したがって、例えば取付部材２１（リブ５ｂ）に基板１から離れる方向への荷重が加わった場合、これら内壁面４Ｓ´と取付部材２１（リブ５ｂ）とが係合することで当該荷重に対してより強く抗することができる。 According to the above configuration, the inner wall surface 4S'of the recess 4b'inclines in a direction closer to each other from the bottom surface 4B'side toward the plate surface 1S side. As a result, the recess 4b'has a trapezoidal cross-sectional shape that expands from the upper opening toward the bottom surface 4B'. Therefore, for example, when a load is applied to the mounting member 21 (rib 5b) in a direction away from the substrate 1, the inner wall surface 4S'and the mounting member 21 (rib 5b) engage with each other to increase the load. You can strongly resist.
＜第四実施形態＞
　続いて、本開示の第四実施形態について、図８と図９を参照して説明する。なお、上記の各実施形態と同様の構成については同一の符号を付し、詳細な説明を省略する。図８に示すように、本実施形態では、凹部４ｃが平面視で（つまり、板面１Ｓに直交する方向から見て）円形をなしている。また、図９に示すように、この凹部４ｃは、矩形の断面形状を有している。このような凹部４ｃが、基板１の板面１Ｓ上で互いに間隔をあけて格子状に配列されている。 <Fourth Embodiment>
Subsequently, the fourth embodiment of the present disclosure will be described with reference to FIGS. 8 and 9. The same components as those in the above embodiments are designated by the same reference numerals, and detailed description thereof will be omitted. As shown in FIG. 8, in the present embodiment, the recess 4c has a circular shape in a plan view (that is, when viewed from a direction orthogonal to the plate surface 1S). Further, as shown in FIG. 9, the recess 4c has a rectangular cross-sectional shape. Such recesses 4c are arranged in a grid pattern on the plate surface 1S of the substrate 1 at intervals from each other.
　各凹部４ｃには、取付部材２１としてのリブ５ｃが挿入・融着されている。リブ５ｃは、凹部４ｃの開口径と同一か又はわずかに小さな外径を有する円柱状をなしている。リブ５ｃが凹部４ｃに挿入されている状態では、リブ５ｃの外周面５ｃＢは、凹部４ｃの内周面（内壁面４ｃＳ）に面接触しつつ、融着されている。リブ５ｃの先端面（リブ先端面５ｃＡ）は、凹部４ｃの底面４ｃＢに面接触しつつ、融着されている。 A rib 5c as a mounting member 21 is inserted and fused into each recess 4c. The rib 5c has a columnar shape having an outer diameter equal to or slightly smaller than the opening diameter of the recess 4c. In the state where the rib 5c is inserted into the recess 4c, the outer peripheral surface 5cB of the rib 5c is fused while being in surface contact with the inner peripheral surface (inner wall surface 4cS) of the recess 4c. The tip surface of the rib 5c (rib tip surface 5cA) is fused while being in surface contact with the bottom surface 4cB of the recess 4c.
　上記構成によれば、リブ５ｃによって基板１の強度を補填できることに加えて、凹部４ｃが円形であることから、板面１Ｓに穴あけ加工を施すことのみによって容易に凹部４ｃを形成することができる。これにより、コストの削減と工期の短縮を実現することができる。 According to the above configuration, in addition to being able to supplement the strength of the substrate 1 with the ribs 5c, since the recesses 4c are circular, the recesses 4c can be easily formed only by drilling the plate surface 1S. .. As a result, it is possible to reduce the cost and shorten the construction period.
（その他の実施形態）
　以上、本開示の実施形態について図面を参照して詳述したが、具体的な構成はこの実施形態に限られるものではなく、本開示の要旨を逸脱しない範囲の設計変更等も含まれる。
　例えば、上記の各実施形態では、航空機のアクセスドアパネル２００として樹脂成形パネルを用いた例について説明した。しかしながら、樹脂成形パネル１００の適用対象は航空機に限られず、他の例として風力発電用のタービン等の回転機械や、船舶・自動車を含む他の輸送機械にも好適に樹脂成形パネル１００を適用することが可能である。 (Other embodiments)
Although the embodiments of the present disclosure have been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and design changes and the like within a range not deviating from the gist of the present disclosure are also included.
For example, in each of the above embodiments, an example in which a resin molded panel is used as the access door panel 200 of the aircraft has been described. However, the application target of the resin molded panel 100 is not limited to aircraft, and as another example, the resin molded panel 100 is suitably applied to rotating machines such as turbines for wind power generation and other transportation machines including ships and automobiles. It is possible.
＜付記＞
　各実施形態に記載の樹脂成形パネル１００、及び樹脂成形パネル１００の製造方法は、例えば以下のように把握される。 <Additional notes>
The resin molded panel 100 and the manufacturing method of the resin molded panel 100 described in each embodiment are grasped as follows, for example.
（１）第１の態様に係る樹脂成形パネル１００は、連続繊維及び熱可塑性樹脂を含む繊維強化樹脂から構成され、板面から凹む凹部４、７が形成された基板１と、熱可塑性樹脂から構成され、前記凹部４、７に挿入されているとともに該凹部４、７の底面４Ｂ、７Ｂ及び内壁面４Ｓ、７Ｓに融着されている取付部材２１と、を有する。 (1) The resin molded panel 100 according to the first aspect is made of a fiber-reinforced resin containing continuous fibers and a thermoplastic resin, and is made of a substrate 1 in which recesses 4 and 7 recessed from the plate surface are formed, and a thermoplastic resin. It is configured and has a mounting member 21 that is inserted into the recesses 4 and 7 and fused to the bottom surfaces 4B and 7B of the recesses 4 and 7 and the inner wall surfaces 4S and 7S.
　上記構成によれば、取付部材２１が凹部４、７の底面４Ｂ、７Ｂに加えて、内壁面４Ｓ、７Ｓに対して融着されている。したがって、例えば取付部材２１に基板１から離れる方向への荷重が加わった場合、取付部材２１と底面４Ｂ、７Ｂとの間に加えて、内壁面４Ｓ、７Ｓとの間でも当該荷重を負担することができる。特に、内壁面４Ｓ、７Ｓと取付部材２１との間では、上記の荷重は両者の界面に沿ってせん断力として働く。したがって、界面に垂直な方向の荷重を負担する場合に比べて、より強い結合力を発揮することができる。 According to the above configuration, the mounting member 21 is fused to the inner wall surfaces 4S and 7S in addition to the bottom surfaces 4B and 7B of the recesses 4 and 7. Therefore, for example, when a load is applied to the mounting member 21 in a direction away from the substrate 1, the load is borne not only between the mounting member 21 and the bottom surfaces 4B and 7B but also between the inner wall surfaces 4S and 7S. Can be done. In particular, between the inner wall surfaces 4S and 7S and the mounting member 21, the above load acts as a shearing force along the interface between the two. Therefore, a stronger coupling force can be exhibited as compared with the case where a load in a direction perpendicular to the interface is applied.
（２）第２の態様に係る樹脂成形パネル１００では、前記基板１は、基板本体１Ｈと、該基板本体１Ｈの表面１Ａから突出し、先端面が前記板面１Ｓを形成するとともに、該基板本体１Ｈの広がる方向に互いに間隔をあけて隣接することで前記凹部４、７を形成する複数の凸部３、６を有する。 (2) In the resin molded panel 100 according to the second aspect, the substrate 1 projects from the substrate main body 1H and the surface 1A of the substrate main body 1H, and the tip surface forms the plate surface 1S and the substrate main body. It has a plurality of convex portions 3 and 6 that form the concave portions 4 and 7 by being adjacent to each other at intervals in the spreading direction of 1H.
　上記構成によれば、基板本体１Ｈの表面１Ａに凸部３、６を形成することのみによって、容易に凹部４、７を形成することができる。 According to the above configuration, the concave portions 4 and 7 can be easily formed only by forming the convex portions 3 and 6 on the surface 1A of the substrate main body 1H.
（３）第３の態様に係る樹脂成形パネル１００では、前記凹部４ｂは、前記板面１Ｓから凹むとともに、前記基板１の広がる方向に延びる溝である。 (3) In the resin molded panel 100 according to the third aspect, the recess 4b is a groove that is recessed from the plate surface 1S and extends in the expanding direction of the substrate 1.
　上記構成によれば、板面１Ｓに溝を形成することのみによって、容易に凹部４ｂを形成することができる。 According to the above configuration, the recess 4b can be easily formed only by forming the groove on the plate surface 1S.
（４）第４の態様に係る樹脂成形パネル１００では、前記凹部４ｂ´の一対の前記内壁面４Ｓ´は、前記底面４Ｂ´側から前記板面１Ｓ側に向かうに従って互いに近接する方向に傾斜している。 (4) In the resin molded panel 100 according to the fourth aspect, the pair of inner wall surfaces 4S'of the recesses 4b'inclinate in a direction closer to each other from the bottom surface 4B'side toward the plate surface 1S side. ing.
　上記構成によれば、凹部４ｂ´の内壁面４Ｓ´が底面４Ｂ´側から板面１Ｓ側に向かうに従って互いに近接する方向に傾斜することで、凹部４ｂ´は上部の開口部から底面４Ｂ´側に向かうに従って拡大する台形の断面形状を有している。したがって、例えば取付部材２１に基板１から離れる方向への荷重が加わった場合、これら内壁面４Ｓ´と取付部材２１とが係合することで当該荷重に対してより強く抗することができる。 According to the above configuration, the inner wall surface 4S'of the recess 4b'inclins in a direction closer to each other from the bottom surface 4B'side toward the plate surface 1S side, so that the recess 4b'is inclined from the upper opening to the bottom surface 4B'side. It has a trapezoidal cross-sectional shape that expands toward. Therefore, for example, when a load is applied to the mounting member 21 in a direction away from the substrate 1, the inner wall surface 4S'and the mounting member 21 engage with each other to more strongly resist the load.
（５）第５の態様に係る樹脂成形パネル１００では、前記凹部４ｃは、前記板面１Ｓに直交する方向から見て円形をなしている。 (5) In the resin molded panel 100 according to the fifth aspect, the recess 4c has a circular shape when viewed from a direction orthogonal to the plate surface 1S.
　上記構成によれば、凹部４ｃが円形であることから、板面１Ｓに穴あけ加工を施すことのみによって容易に凹部４ｃを形成することができる。 According to the above configuration, since the recess 4c is circular, the recess 4c can be easily formed only by drilling the plate surface 1S.
（６）第６の態様に係る樹脂成形パネル１００では、前記取付部材２１は、前記基板１の強度を補填するためのリブ５である。 (6) In the resin molded panel 100 according to the sixth aspect, the mounting member 21 is a rib 5 for supplementing the strength of the substrate 1.
　上記構成によれば、リブ５としての取付部材２１が設けられていることで、樹脂成形パネル１００の強度を高めることができる。 According to the above configuration, the strength of the resin molded panel 100 can be increased by providing the mounting member 21 as the rib 5.
（７）第７の態様に係る樹脂成形パネル１００では、前記取付部材２１は、前記基板１の周縁部に沿って環状に延びることで該基板１を他の部材に接合するための接合部をなしている。 (7) In the resin molded panel 100 according to the seventh aspect, the mounting member 21 extends in an annular shape along the peripheral edge portion of the substrate 1 to form a joint portion for joining the substrate 1 to another member. I'm doing it.
　上記構成によれば、接合部としての取付部材２１が設けられていることで、樹脂成形パネル１００を他の部材に容易かつ強固に接合することができる。 According to the above configuration, since the mounting member 21 is provided as a joint portion, the resin molded panel 100 can be easily and firmly joined to another member.
（８）第８の態様に係る樹脂成形パネル１００では、前記取付部材２１は、前記凹部７に挿入される挿入部２Ｐと、該挿入部２Ｐから外側に向かって張り出すとともに前記板面１Ｓに当接するフランジ部２Ｆと、前記挿入部２Ｐ及び前記フランジ部２Ｆを接続する接続部２Ｃと、を有している。 (8) In the resin molded panel 100 according to the eighth aspect, the mounting member 21 projects outward from the insertion portion 2P inserted into the recess 7 and the insertion portion 2P, and extends onto the plate surface 1S. It has a flange portion 2F that comes into contact with the insert portion 2P, and a connection portion 2C that connects the insertion portion 2P and the flange portion 2F.
　上記構成によれば、樹脂成形パネル１００の内側に例えば燃料タンク等が配置されている場合に、燃料の漏れを生じる虞のある経路が、凹部７の底面と内壁面に加えて、フランジ部２Ｆが当接する板面１Ｓを含む３面となる。これにより、漏れが生じる可能性をより一層低減することができる。また、フランジ部２Ｆ及び接続部２Ｃに対して基板１側に向かう荷重が加わった場合、凹部７の一対の内壁面のうち、接続部２Ｃ側の内壁面では圧縮応力が生じることとなる。これにより、当該内壁面に引張り荷重が加わる場合に比べて、界面での剥離が生じる可能性をさらに低減することができる。 According to the above configuration, when a fuel tank or the like is arranged inside the resin molded panel 100, a path that may cause fuel leakage is provided in addition to the bottom surface and the inner wall surface of the recess 7, and the flange portion 2F. There are three surfaces including the plate surface 1S with which the surface is in contact. This makes it possible to further reduce the possibility of leakage. Further, when a load toward the substrate 1 side is applied to the flange portion 2F and the connecting portion 2C, compressive stress is generated on the inner wall surface on the connecting portion 2C side of the pair of inner wall surfaces of the recess 7. As a result, the possibility of peeling at the interface can be further reduced as compared with the case where a tensile load is applied to the inner wall surface.
（９）第９の態様に係る樹脂成形パネル１００では、前記凸部３の前記基板本体１Ｈの表面からの突出寸法は、前記リブ５の幅をｘとしたとき、ｘ／２０≦ｈ≦２／３＊ｘであり、前記リブ５の高さは、該リブ５の幅以下である。 (9) In the resin molded panel 100 according to the ninth aspect, the protrusion dimension of the convex portion 3 from the surface of the substrate main body 1H is x / 20 ≦ h ≦ 2 when the width of the rib 5 is x. It is / 3 * x, and the height of the rib 5 is equal to or less than the width of the rib 5.
　上記構成によれば、リブ５が基板本体１Ｈから剥離する可能性をさらに低減することができる。 According to the above configuration, the possibility that the rib 5 is peeled off from the substrate body 1H can be further reduced.
（１０）第１０の態様に係る樹脂成形パネル１００では、前記凹部４は互いに間隔をあけて複数形成され、該複数の凹部４に１つずつ挿入されている複数の前記取付部材２１を有する。 (10) In the resin molded panel 100 according to the tenth aspect, the recesses 4 are formed in plurality at intervals from each other, and have a plurality of mounting members 21 inserted into the plurality of recesses 4 one by one.
　上記構成によれば、樹脂成形パネル１００におけるより広い範囲で、強度をさらに向上させることができる。 According to the above configuration, the strength of the resin molded panel 100 can be further improved in a wider range.
（１１）第１１の態様に係る樹脂成形パネル１００では、前記凹部４は、前記板面上で互いに間隔をあけて格子状に配列されている。 (11) In the resin molded panel 100 according to the eleventh aspect, the recesses 4 are arranged in a grid pattern on the plate surface at intervals from each other.
　上記構成によれば、樹脂成形パネル１００におけるより広い範囲で、強度をさらに向上させることができる。 According to the above configuration, the strength of the resin molded panel 100 can be further improved in a wider range.
（１２）第１２の態様に係るアクセスドアパネル２００は、上記いずれか一の態様に係る樹脂成形パネル１００によって形成され、前記基板１が機体の表面の一部を形成するとともに、該表面に形成された開口部を前記基板１によって閉塞する。 (12) The access door panel 200 according to the twelfth aspect is formed by the resin molded panel 100 according to any one of the above aspects, and the substrate 1 forms a part of the surface of the machine body and is formed on the surface. The opening is closed by the substrate 1.
　上記構成によれば、アクセスドアパネル２００として樹脂成形パネル１００を用いていることから、例えば航空機等の与圧環境下を含め、荷重が常態的に加わる環境でアクセスドアパネル２００の強度を安定的に維持することができる。 According to the above configuration, since the resin molded panel 100 is used as the access door panel 200, the strength of the access door panel 200 is stably maintained in an environment where a load is normally applied, including in a pressurized environment such as an aircraft. can do.
（１３）第１３の態様に係る樹脂成形パネル１００の製造方法は、連続繊維及び熱可塑性樹脂を含む繊維強化樹脂から構成され、板面１Ｓから凹む凹部４、７が形成された基板１と、熱可塑性樹脂から構成され、前記凹部４、７に挿入されているとともに該凹部４、７の底面４Ｂ、７Ｂ及び内壁面４Ｓ、７Ｓに融着されている取付部材２１と、を有する樹脂成形パネル１００の製造方法であって、前記基板１を形成する基板形成工程Ｓ１１と、射出成形によって前記取付部材２１を形成する取付部材形成工程Ｓ１２と、前記取付部材２１を、前記凹部４、７に挿入して前記底面４Ｂ、７Ｂ及び前記内壁面４Ｓ、７Ｓに融着する融着工程Ｓ１３と、を含む。 (13) The method for manufacturing the resin molded panel 100 according to the thirteenth aspect is a substrate 1 composed of a fiber-reinforced resin containing continuous fibers and a thermoplastic resin, and having recesses 4 and 7 recessed from the plate surface 1S. A resin molded panel made of a thermoplastic resin and having a mounting member 21 inserted into the recesses 4 and 7 and fused to the bottom surfaces 4B and 7B of the recesses 4 and 7 and the inner wall surfaces 4S and 7S. In the manufacturing method of 100, the substrate forming step S11 for forming the substrate 1, the mounting member forming step S12 for forming the mounting member 21 by injection molding, and the mounting member 21 are inserted into the recesses 4 and 7. A fusion step S13 for fusing to the bottom surfaces 4B and 7B and the inner wall surfaces 4S and 7S is included.
　上記構成によれば、凹部４、７に取付部材２１を挿入し、当該凹部４、７の底面４Ｂ、７Ｂ及び内壁面４Ｓ、７Ｓに融着することで、取付部材２１と基板１との結合強度が高い樹脂成形パネル１００を容易かつ安価に製造することができる。 According to the above configuration, the mounting member 21 is inserted into the recesses 4 and 7 and fused to the bottom surfaces 4B and 7B of the recesses 4 and 7 and the inner wall surfaces 4S and 7S to bond the mounting member 21 and the substrate 1. The resin molded panel 100 having high strength can be easily and inexpensively manufactured.
（１４）第１４の態様に係る樹脂成形パネル１００の製造方法において、前記基板形成工程Ｓ１１では、前記連続繊維に前記熱可塑性樹脂を含浸させることで前記基板１を一体成形する。 (14) In the method for manufacturing the resin molded panel 100 according to the fourteenth aspect, in the substrate forming step S11, the substrate 1 is integrally molded by impregnating the continuous fibers with the thermoplastic resin.
　上記構成によれば、基板１を一体成形することで、より容易かつ迅速に当該基板を量産することができる。 According to the above configuration, by integrally molding the substrate 1, the substrate can be mass-produced more easily and quickly.
（１５）第１５の態様に係る樹脂成形パネル１００の製造方法では、前記基板形成工程Ｓ１１は、前記繊維強化樹脂で形成された素体を準備する素体準備工程Ｓ１１Ａと、前記素体に切削加工を施すことで前記板面１Ｓに前記凹部４、７を形成する切削工程Ｓ１１Ｂと、をさらに含む。 (15) In the method for manufacturing the resin molded panel 100 according to the fifteenth aspect, the substrate forming step S11 includes a body preparation step S11A for preparing a body formed of the fiber reinforced resin and cutting into the body. A cutting step S11B for forming the recesses 4 and 7 on the plate surface 1S by processing is further included.
　上記方法によれば、切削加工によって素体に事後的に凹部を形成することから、素体そのものの準備に要する工期やコストを削減することができる。これにより、より容易かつ安価に樹脂成形パネル１００を製造することができる。 According to the above method, since the recess is formed in the body after the fact by cutting, the construction period and cost required for the preparation of the body itself can be reduced. As a result, the resin molded panel 100 can be manufactured more easily and inexpensively.
　本開示によれば、より安定的に強度を維持することが可能な樹脂成形パネル、アクセスドアパネル、及び樹脂成形パネルの製造方法を提供することができる。 According to the present disclosure, it is possible to provide a resin molded panel, an access door panel, and a method for manufacturing a resin molded panel capable of maintaining strength more stably.
１００　樹脂成形パネル
２００　アクセスドアパネル
１　基板
１Ａ　表面
１Ｈ　基板本体
１Ｓ　板面
２　環状部材
２Ａ　環状部材先端面
２Ｂ　環状部材側面
２Ｃ　接続部
２Ｆ　フランジ部
２Ｐ　挿入部
３、６　凸部
４、４ｂ、４ｂ´、４ｃ、７　凹部
４Ｂ、４Ｂ´、４ｃＢ　底面
４Ｓ、４Ｓ´、４ｃＳ　内壁面
５、５ｂ、５ｃ　リブ
５１　リブ本体
５２　取付部
５Ａ、５Ａ´、５ｃＡ　リブ先端面
５Ｂ、５Ｂ´、５ｃＢ　リブ側面
７Ｂ　底面
７Ｓ　内壁面
２１　取付部材
Ｈ　ボルト孔 100 Resin molded panel 200 Access door panel 1 Board 1A Surface 1H Board body 1S Plate surface 2 Ring member 2A Ring member tip surface 2B Ring member side surface 2C Connection part 2F Flange part 2P Insert part 3, 6 Convex part 4, 4b, 4b', 4c, 7 Recesses 4B, 4B', 4cB Bottom surface 4S, 4S', 4cS Inner wall surface 5, 5b, 5c Rib 51 Rib body 52 Mounting part 5A, 5A', 5cA Rib tip surface 5B, 5B', 5cB Rib side surface 7B Bottom surface 7S Inner wall surface 21 Mounting member H Bolt hole

Claims (15)

  1. 　連続繊維及び熱可塑性樹脂を含む繊維強化樹脂から構成され、板面から凹む凹部が形成された基板と、
    　熱可塑性樹脂から構成され、前記凹部に挿入されているとともに該凹部の底面及び内壁面に融着されている取付部材と、
    を有する樹脂成形パネル。     A substrate composed of a fiber reinforced resin containing continuous fibers and a thermoplastic resin and having recesses recessed from the plate surface, and a substrate.
    A mounting member made of a thermoplastic resin, which is inserted into the recess and fused to the bottom surface and the inner wall surface of the recess.
    Resin molded panel with.
  2. 　前記基板は、
    　基板本体と、
    　該基板本体の表面から突出し、先端面が前記板面を形成するとともに、該基板本体の広がる方向に互いに間隔をあけて隣接することで前記凹部を形成する複数の凸部を有する請求項１に記載の樹脂成形パネル。     The substrate is
    With the board body
    The first aspect of the present invention has a plurality of convex portions that protrude from the surface of the substrate main body, the tip surface forms the plate surface, and the concave portions are formed by adjacent to each other at intervals in the spreading direction of the substrate main body. The resin molded panel described.
  3. 　前記凹部は、前記板面から凹むとともに、前記基板の広がる方向に延びる溝である請求項１に記載の樹脂成形パネル。 The resin molded panel according to claim 1, wherein the recess is a groove that is recessed from the plate surface and extends in the spreading direction of the substrate.
  4. 　前記凹部の一対の前記内壁面は、前記底面側から前記板面側に向かうに従って互いに近接する方向に傾斜している請求項１から３のいずれか一項に記載の樹脂成形パネル。 The resin molded panel according to any one of claims 1 to 3, wherein the pair of inner wall surfaces of the recesses are inclined in a direction closer to each other from the bottom surface side toward the plate surface side.
  5. 　前記凹部は、前記板面に直交する方向から見て円形をなしている請求項１から４のいずれか一項に記載の樹脂成形パネル。 The resin molded panel according to any one of claims 1 to 4, wherein the recess is circular when viewed from a direction orthogonal to the plate surface.
  6. 　前記取付部材は、前記基板の強度を補填するためのリブである請求項１から５のいずれか一項に記載の樹脂成形パネル。 The resin molded panel according to any one of claims 1 to 5, wherein the mounting member is a rib for supplementing the strength of the substrate.
  7. 　前記取付部材は、前記基板の周縁部に沿って環状に延びることで該基板を他の部材に接合するための接合部である請求項１から５のいずれか一項に記載の樹脂成形パネル。 The resin molded panel according to any one of claims 1 to 5, wherein the mounting member is a joint portion for joining the substrate to another member by extending in an annular shape along the peripheral edge portion of the substrate.
  8. 　前記取付部材は、
    　前記凹部に挿入される挿入部と、
    　該挿入部から外側に向かって張り出すとともに前記板面に当接するフランジ部と、
    　前記挿入部及び前記フランジ部を接続する接続部と、を有している請求項７に記載の樹脂成形パネル。     The mounting member
    An insertion part to be inserted into the recess and
    A flange portion that projects outward from the insertion portion and abuts on the plate surface, and a flange portion.
    The resin molded panel according to claim 7, further comprising a connecting portion for connecting the insertion portion and the flange portion.
  9. 　前記取付部材は、前記基板の強度を補填するためのリブであり、
    　前記凸部の前記基板本体の表面からの突出寸法は、前記リブの幅をｘとしたとき、ｘ／２０≦ｈ≦２／３＊ｘであり、前記リブの高さは、該リブの幅以下である請求項２に記載の樹脂成形パネル。     The mounting member is a rib for supplementing the strength of the substrate.
    The protruding dimension of the convex portion from the surface of the substrate main body is x / 20 ≦ h ≦ 2/3 * x, where x is the width of the rib, and the height of the rib is the width of the rib. The resin molded panel according to claim 2, which is as follows.
  10. 　前記凹部は互いに間隔をあけて複数形成され、
    　該複数の凹部に１つずつ挿入されている複数の前記取付部材を有する請求項１から９のいずれか一項に記載の樹脂成形パネル。     A plurality of the recesses are formed at intervals from each other.
    The resin molded panel according to any one of claims 1 to 9, further comprising the plurality of mounting members inserted into the plurality of recesses one by one.
  11. 　前記凹部は、前記板面上で互いに間隔をあけて格子状に配列されている請求項５に記載の樹脂成形パネル。 The resin molded panel according to claim 5, wherein the recesses are arranged in a grid pattern on the plate surface at intervals from each other.
  12. 　請求項１から１１のいずれか一項に記載の樹脂成形パネルによって形成され、前記基板が機体の表面の一部を形成するとともに、該表面に形成された開口部を前記基板によって閉塞するアクセスドアパネル。 An access door panel formed by the resin molded panel according to any one of claims 1 to 11, wherein the substrate forms a part of the surface of the airframe, and an opening formed on the surface is closed by the substrate. ..
  13. 　連続繊維及び熱可塑性樹脂を含む繊維強化樹脂から構成され、板面から凹む凹部が形成された基板と、
    　熱可塑性樹脂から構成され、前記凹部に挿入されているとともに該凹部の底面及び内壁面に融着されている取付部材と、
    を有する樹脂成形パネルの製造方法であって、
    　前記基板を形成する基板形成工程と、
    　射出成形によって前記取付部材を形成する取付部材形成工程と、
    　前記取付部材を、前記凹部に挿入して前記底面及び前記内壁面に融着する融着工程と、を含む樹脂成形パネルの製造方法。     A substrate composed of a fiber reinforced resin containing continuous fibers and a thermoplastic resin and having recesses recessed from the plate surface, and a substrate.
    A mounting member made of a thermoplastic resin, which is inserted into the recess and fused to the bottom surface and the inner wall surface of the recess.
    It is a manufacturing method of a resin molded panel having
    The substrate forming process for forming the substrate and
    A mounting member forming step of forming the mounting member by injection molding,
    A method for manufacturing a resin molded panel, comprising a fusion step of inserting the mounting member into the recess and fusing to the bottom surface and the inner wall surface.
  14. 　前記基板形成工程では、前記連続繊維に前記熱可塑性樹脂を含浸させることで前記基板を一体成形する請求項１３に記載の樹脂成形パネルの製造方法。 The method for manufacturing a resin molded panel according to claim 13, wherein in the substrate forming step, the continuous fiber is impregnated with the thermoplastic resin to integrally mold the substrate.
  15. 　前記基板形成工程は、
    　前記繊維強化樹脂で形成された素体を準備する素体準備工程と、
    　前記素体に切削加工を施すことで前記板面に前記凹部を形成する切削工程と、
    をさらに含む請求項１３に記載の樹脂成形パネルの製造方法。     The substrate forming step is
    A body preparation step for preparing a body formed of the fiber reinforced resin, and
    A cutting process of forming the recess on the plate surface by cutting the element body, and
    The method for manufacturing a resin molded panel according to claim 13, further comprising.
PCT/JP2020/045623 2020-01-21 2020-12-08 Resin formed panel, access door panel, and resin formed panel production method WO2021149377A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011079289A (en) * 2009-10-05 2011-04-21 Okura Industry Co Ltd Joint structure and joining process of fiber reinforced plastic
JP2013000982A (en) * 2011-06-16 2013-01-07 Kawakami Sangyo Co Ltd Engagement type sheet
JP2017124579A (en) * 2016-01-15 2017-07-20 信越ポリマー株式会社 Manufacturing method of resin member, manufacturing method of casing member and manufacturing method of substrate accommodating container

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011079289A (en) * 2009-10-05 2011-04-21 Okura Industry Co Ltd Joint structure and joining process of fiber reinforced plastic
JP2013000982A (en) * 2011-06-16 2013-01-07 Kawakami Sangyo Co Ltd Engagement type sheet
JP2017124579A (en) * 2016-01-15 2017-07-20 信越ポリマー株式会社 Manufacturing method of resin member, manufacturing method of casing member and manufacturing method of substrate accommodating container

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