WO2015001867A1 - パネル部材、プレス型、及びパネル部材の製造方法 - Google Patents
パネル部材、プレス型、及びパネル部材の製造方法 Download PDFInfo
- Publication number
- WO2015001867A1 WO2015001867A1 PCT/JP2014/063738 JP2014063738W WO2015001867A1 WO 2015001867 A1 WO2015001867 A1 WO 2015001867A1 JP 2014063738 W JP2014063738 W JP 2014063738W WO 2015001867 A1 WO2015001867 A1 WO 2015001867A1
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- WO
- WIPO (PCT)
- Prior art keywords
- panel member
- wall portion
- general
- molding
- molding surface
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000005452 bending Methods 0.000 claims abstract description 41
- 239000012783 reinforcing fiber Substances 0.000 claims abstract description 33
- 229920005989 resin Polymers 0.000 claims abstract description 26
- 239000011347 resin Substances 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 25
- 238000000465 moulding Methods 0.000 claims description 90
- 239000000835 fiber Substances 0.000 claims description 26
- 230000008859 change Effects 0.000 claims description 10
- 230000000694 effects Effects 0.000 description 13
- 230000004048 modification Effects 0.000 description 10
- 238000012986 modification Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 230000003313 weakening effect Effects 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 239000003677 Sheet moulding compound Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/04—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of synthetic material
- B62D29/043—Superstructures
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/021—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/14—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles in several steps
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete 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
- 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
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/001—Producing wall or panel-like structures, e.g. for hulls, fuselages, or buildings
- B29D99/0014—Producing wall or panel-like structures, e.g. for hulls, fuselages, or buildings provided with ridges or ribs, e.g. joined ribs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
- B62D25/2054—Load carrying floors for commercial vehicles
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/021—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
- B29C2043/022—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface having locally depressed lines, e.g. hinges
-
- 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
- B29K2101/12—Thermoplastic materials
-
- 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
- B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
-
- 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
- B29K2307/04—Carbon
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- 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
- B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
- B29K2309/08—Glass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/001—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material
- B62D29/005—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material preformed metal and synthetic material elements being joined together, e.g. by adhesives
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
- Y10T428/24612—Composite web or sheet
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24628—Nonplanar uniform thickness material
- Y10T428/24669—Aligned or parallel nonplanarities
- Y10T428/24694—Parallel corrugations
Definitions
- the present invention relates to a panel member, a press die, and a method for manufacturing the panel member.
- a panel member made of a fiber reinforced resin material and provided with a corrugated plate portion may be disposed as a reinforcing member for a vehicle body (see, for example, Patent Document 1).
- the present invention provides a panel member capable of improving the bending rigidity with respect to the load in the wavelength direction of the corrugated plate portion, a press die for press molding of the panel member, and manufacture of the panel member The purpose is to obtain a method.
- the panel member which concerns on the 1st aspect of this invention comprises the 1st wall part which forms the undulation of the corrugated sheet part shape
- the panel member has a corrugated portion formed of a fiber reinforced resin material, and the corrugated portion of the corrugated plate portion is formed by the first wall portion. Moreover, the upper-lower end part of the wave height direction in a corrugated plate part is comprised by the 2nd wall part, and the 2nd wall part is connected to the 1st wall part via the bending part.
- the general portion extending in the wavelength direction of the corrugated plate portion in the second wall portion is set to be thinner than the first wall portion, and the orientation direction of the reinforcing fibers disposed in the general portion is corrugated plate It is set in a direction along the wavelength direction of the part. For this reason, the panel member is not easily bent and deformed when a load in the wavelength direction of the corrugated plate portion is input.
- the second aspect of the present invention is the panel member according to the first aspect, wherein the general part does not contain bubbles having a diameter larger than at least the reinforcing fiber.
- the general part does not contain at least bubbles having a diameter larger than that of the reinforcing fibers.
- the general part has a higher density than the case of containing bubbles having a larger diameter than the reinforcing fibers.
- the reinforcing fibers can be made to follow the wavelength direction of the corrugated plate portion by the amount not containing the bubbles. For this reason, the panel member is more difficult to bend and deform when a load in the wavelength direction of the corrugated plate portion is input.
- the bent portion is formed in a curved shape and set to a plate thickness equivalent to the first wall portion, At the end of the two-wall portion on the side of the bent portion, a gradually changing portion is formed in which the plate thickness is gradually reduced as the distance from the bent portion increases.
- the bent portion is formed in a curved shape and is set to a thickness equivalent to that of the first wall portion. For this reason, when a load is transmitted from one side of the wave height direction of the corrugated plate portion to the other side, the load is transmitted satisfactorily.
- a gradually changing portion is formed at the end of the second wall portion on the side of the bent portion, the thickness of which is gradually reduced as the distance from the bent portion increases. Therefore, local weakening is suppressed even if the plate thickness of the second wall portion is changed.
- the bent portion is formed in a curved shape and set to a plate thickness equivalent to the second wall portion. At the end of the one wall portion on the side of the bent portion, a gradually changing portion whose thickness is gradually increased as the distance from the bent portion is increased is formed.
- the bent portion is formed in a curved shape and is set to a plate thickness equivalent to that of the second wall portion. For this reason, a reinforced fiber can be made to follow further in the bending direction of a bending part.
- a gradually changing portion whose thickness is gradually increased as the distance from the bent portion increases is formed at the end of the first wall portion on the bent portion side. Therefore, even if the plate thickness of the first wall portion is changed, local weakening can be suppressed.
- an extending portion extends from the bent portion to the side opposite to the first wall portion.
- the extended portion is formed integrally with the bent portion.
- the extending portion extends from the bent portion to the side opposite to the first wall portion, and the extending portion is formed integrally with the bent portion.
- a force that causes the bent portion to bend inward and a force that causes the L-shaped portion extending from the second wall portion to the extending portion to act on the two wall portions cancel each other. Hold on. Thereby, the internal curvature of a bending part is suppressed.
- a press die includes a lower die provided with a first molding surface for press molding of a panel member according to any one of the first to fifth aspects, and the lower die And a second molding surface for press molding of the panel member, and a portion of the second molding surface for molding the general portion of the second wall portion is the first wall portion. And an upper mold in which a space between the first molding surface and the part to be molded is set narrower.
- type provided with the 2nd molding surface for the press molding of a panel member is opposingly arranged by the upper side of the lower mold
- type is set so that the space
- the manufacturing method of the panel member which concerns on the 7th aspect of this invention is a manufacturing method of the panel member using the press type
- the second mold surface of the upper mold is relatively close to the first mold surface of the lower mold in a state where the sheet-like fiber reinforced resin material is disposed on the lower mold.
- the fiber reinforced resin material is formed into a corrugated plate shape.
- the second molding surface of the upper die is further brought closer to the first molding surface of the lower die, and the portion that becomes the general part of the second wall portion has its plate thickness. Compress in the direction.
- the density of the general part of the second wall part is increased by compressing the part of the second wall part, which has been stretched and thinned in the first process, in the thickness direction in the second process. Become.
- the panel member according to the first aspect of the present invention has an excellent effect that the bending rigidity with respect to the load in the wavelength direction of the corrugated plate portion can be improved.
- the panel member according to the second aspect of the present invention has an excellent effect that the bending rigidity with respect to the load in the wavelength direction of the corrugated plate portion can be further improved.
- the load is transmitted from one side of the wave plate portion in the wave height direction to the other side while suppressing the second wall portion from being weakened locally. In some cases, the load can be transmitted satisfactorily.
- the bending of the bending portion with respect to the load in the wavelength direction of the corrugated plate portion due to the orientation of the reinforcing fiber is suppressed while locally weakening the first wall portion. It has an excellent effect that the rigidity can be improved.
- the panel member according to the fifth aspect of the present invention has an excellent effect that it is possible to suppress the inner warp of the bent portion connecting the first wall portion and the second wall portion.
- the press die according to the sixth aspect of the present invention has an excellent effect that the bending rigidity with respect to the load in the wavelength direction of the corrugated plate portion can be improved.
- the method for manufacturing a panel member according to the seventh aspect of the present invention has an excellent effect that the bending rigidity with respect to the load in the wavelength direction of the corrugated plate portion can be improved.
- FIG. 3 is an enlarged cross-sectional view taken along line 3-3 in FIG.
- FIG. 3 is an enlarged cross-sectional view taken along line 3-3 in FIG.
- FIG. 3 is a perspective view which shows typically the orientation direction of a reinforced fiber in the state which looked at the general part of the horizontal wall part of FIG. 1 from diagonally upward side.
- It is a longitudinal cross-sectional view which shows typically the cross-sectional state just before the 2nd process of the site
- FIG. 10 It is a perspective view which shows the panel member of FIG.
- FIG. 10 is an enlarged cross-sectional view taken along line 11-11 in FIG. It is sectional drawing shown in the state which cut
- FIG. 1 is a perspective view of a laminated structure 10 including a panel member 20 according to this embodiment.
- 2 is a perspective view of the panel member 20, and
- FIG. 3 is an enlarged sectional view taken along line 3-3 of FIG.
- the laminated structure 10 shown in FIG. 1 is applicable to, for example, a frame (a stack frame that supports a stack unit as an example) disposed on the lower side of a vehicle floor panel.
- a frame a stack frame that supports a stack unit as an example
- the stacked structure 10 is arranged so that the arrow W direction is along the vehicle width direction.
- a corrugated panel member 20 is sandwiched between a flat upper panel 12 constituting the upper end portion and a flat lower panel 14 constituting the lower end portion.
- the upper panel 12 and the lower panel 14 are made of resin as an example. However, these may be made of metal.
- the upper panel 12 and the lower panel 14 are joined (bonded as an example) to the panel member 20.
- the upper panel 12 and the panel member 20 form a closed section 18A
- the lower panel 14 and the panel member 20 form a closed section 18B.
- the laminated structure 10 has a structure having high rigidity with respect to loads f1 and f2 along the extending direction of the closed cross-section portions 18A and 18B.
- the panel member 20 shown in FIG. 2 is formed of a fiber reinforced resin material (FRP).
- the fiber reinforced resin material is a composite material in which reinforcing fibers such as carbon fibers and glass fibers are solidified with a resin (in this embodiment, a thermoplastic resin as an example).
- the panel member 20 includes a corrugated plate portion 22 having a corrugated shape.
- the wave height of the corrugated plate portion 22 is set to a dimension that is sufficiently longer than the base plate thickness before molding (for example, twice or more the base plate thickness before molding).
- the corrugation of the corrugated plate portion 22 is formed by a standing wall portion 24 as a first wall portion.
- the standing wall portion 24 is slightly inclined toward one side or the other side in the wavelength direction (arrow W direction) of the corrugated plate portion 22 toward the upper side of the wave height direction (arrow H direction) of the corrugated plate portion 22.
- a plurality of the 22 wavelength directions (arrow W direction) are arranged side by side, and the inclination directions are alternately changed.
- the upper and lower ends of the wave height direction (arrow H direction) in the corrugated plate portion 22 are constituted by horizontal wall portions 28 as second wall portions.
- the horizontal wall part 28 is connected to the standing wall part 24 via the bending part 26, and connects the adjacent standing wall parts 24 to each other alternately.
- the boundary line between the bent portion 26 and the standing wall portion 24 is indicated by a two-dot chain line a
- the boundary line between the bent portion 26 and the lateral wall portion 28 is indicated by a two-dot chain line b.
- the lateral wall portion 28 includes a flat plate-like general portion 28 ⁇ / b> A that extends in the wavelength direction (arrow W direction) of the corrugated plate portion 22.
- the range of the lateral wall portion 28 and the range of the general portion 28A of the lateral wall portion 28 are the same.
- the plate thickness t1 of the general portion 28A of the horizontal wall portion 28 is set to be thinner than the plate thickness t2 of the standing wall portion 24 (adoption of a differential thickness structure).
- the bent portion 26 that connects the standing wall portion 24 and the lateral wall portion 28 is formed in a curved shape, and the plate thickness is gradually reduced from the end portion on the standing wall portion 24 side toward the end portion on the lateral wall portion 28 side. ing. That is, the bent portion 26 is a gradually changing portion of the plate thickness.
- the radially outer surface 26A of the bent portion 26 is a curved surface having a predetermined radius of curvature
- the radially inner surface 26B of the bent portion 26 is the end on the side of the standing wall portion 24.
- the curved surface has a curvature radius that is gradually increased from the portion toward the end on the side of the lateral wall portion 28.
- the radially inner surface (26B) of the bent portion (26) is a curved surface having a predetermined radius of curvature
- the radially outer surface (26A) of the bent portion (26) is a standing wall.
- the curved surface may be a curved surface whose curvature radius is gradually reduced from the end on the side of the portion (24) toward the end on the side of the lateral wall (28).
- the radius of curvature as the surface (26B) on the radially inner side of the bent portion (26) goes from the end on the side of the standing wall (24) toward the end on the side of the lateral wall (28).
- the curved surface may be a curved surface whose radius of curvature is gradually reduced.
- FIG. 4 schematically shows the orientation direction of the reinforcing fibers 30 in a state where the general portion 28A of the lateral wall portion 28 is viewed obliquely from above.
- FIG. 5B schematically shows a cross-sectional state of the general portion 28A of the lateral wall portion 28 observed by the electron microscope in the same direction as FIG.
- the general part 28 ⁇ / b> A does not contain bubbles having a diameter larger than that of at least the reinforcing fiber 30.
- the general part 28A does not contain any bubbles, and in this embodiment, it is set as such.
- the orientation direction of the reinforcing fibers 30 arranged in the general portion 28A of the lateral wall portion 28 is in the wavelength direction (arrow W direction) of the corrugated plate portion 22 (see FIG. 2). It is set in the direction along.
- the press die 34 for press-molding the panel member 20 will be described with reference to FIG. 6C.
- the press die 34 is a die having a lower die 36 and an upper die 40.
- the lower mold 36 includes a first molding surface 38 for press molding of the panel member 20.
- the first molding surface 38 of the lower mold 36 has a cross-sectional shape shown in FIG. 6C extending in a direction perpendicular to the paper surface of FIG. 6C and a shape in which irregularities are alternately arranged in the left-right direction of FIG. 6C.
- a vertical surface 38B, and a top surface 38C are planar and are portions for forming the general portion 28 ⁇ / b> A of the lateral wall portion 28.
- the vertical surface 38B is a flat portion and is a portion where the standing wall portion 24 is formed.
- the upper mold 40 is disposed opposite to the upper side of the lower mold 36 and includes a second molding surface 42 for press molding of the panel member 20.
- the second molding surface 42 of the upper mold 40 has a cross-sectional shape shown in FIG. 6C extending in a direction perpendicular to the paper surface of FIG. 6C and a shape in which irregularities are alternately arranged in the left-right direction of FIG. 6C. , A vertical surface 42B, and a top surface 42C.
- the bottom surface 42 ⁇ / b> A and the top surface 42 ⁇ / b> C are planar and are portions for forming the general portion 28 ⁇ / b> A of the lateral wall portion 28.
- the vertical surface 42 ⁇ / b> B has a planar shape and is a part where the standing wall portion 24 is formed.
- the distance d1 between the bottom surface 42A of the second molding surface 42 in the upper mold 40 and the top surface 38C of the first molding surface 38 in the lower mold 36 is equal to the top surface 42C of the second molding surface 42 in the upper mold 40 and the lower mold. 36 is set to be equal to the distance d2 between the first molding surface 38 and the bottom surface 38A. The distances d1 and d2 are set to be narrower than the distance d3 between the vertical surface 42B of the second molding surface 42 of the upper mold 40 and the vertical surface 38B of the first molding surface 38 of the lower mold 36. .
- FIG. 6A shows the initial stage of the first process
- FIG. 6B shows the middle stage of the first process
- FIG. 6C shows the second process (when the mold clamping is completed).
- the sheet-like fiber reinforced resin material 32 shown in FIG. 6A is placed on the lower mold 36 in a heated state.
- the fiber reinforced resin material 32 which is a base material is a stampable sheet in which reinforcing fibers are randomly oriented.
- the second molding surface 42 of the upper die 40 is placed on the lower die 36 in a state where the sheet-like fiber reinforced resin material 32 is disposed on the lower die 36.
- the fiber reinforced resin material 32 is formed into a corrugated plate shape by pressing while being relatively close to the one molding surface 38.
- the portion pressed against the top surface 42C of the second molding surface 42 of the upper mold 40 and the top surface 38C of the first molding surface 38 of the lower mold 36 are pressurized.
- the part is stretched to reduce the plate thickness.
- the reinforcing fibers are oriented along the stretched direction. 6C shows the positions of the bottom surface 42A and the top surface 42C of the upper mold 40 when the first step is completed by a two-dot chain line.
- FIG. 5A is a diagram schematically showing a state immediately before the second step of the portion that becomes the general portion 28A (see FIG. 5B) of the lateral wall portion 28 by observing a cross section with an electron microscope from the same direction as FIGS. 6A to 6C.
- the portion that becomes the general portion 28 ⁇ / b> A (see FIG. 5B) of the lateral wall portion 28 contains bubbles B having a diameter larger than that of the reinforcing fiber 30.
- the second molding surface 42 of the upper mold 40 is further moved closer to the first molding surface 38 of the lower mold 36. Then, the portion that becomes the general portion 28A of the lateral wall portion 28 is compressed in the plate thickness direction. Thereby, in the press die 34, the pressure difference between the pressure for molding the general portion 28A of the lateral wall portion 28 and the pressure for molding the other portion is reduced, and molding defects are suppressed. And as FIG. 5B shows, the density of the site
- the panel member 20 shown in FIG. 2 manufactured in this way has improved bending strength and bending rigidity of the general portion 28A of the lateral wall portion 28 with respect to loads F1 and F2 in the wavelength direction (arrow W direction) of the corrugated plate portion 22.
- the general portion 28A of the lateral wall portion 28 is less likely to buckle against the loads F1 and F2. That is, since the general portion 28A of the lateral wall portion 28 is sufficiently pressurized by the press die 34 (see FIGS. 6A to 6C), the original material strength of the fiber reinforced resin material 32 (see FIGS. 6A and 6B) ( Or a strength close to that).
- the panel member 20 is less likely to bend and deform as compared to a panel member that contains bubbles having a diameter larger than that of the reinforcing fibers in the general portions of the upper and lower end portions and the reinforcing fibers are randomly oriented.
- the wavelength direction of the corrugated plate portion 22 (the direction of the arrow W)
- the bending rigidity with respect to the load F) can be improved. Further, by improving the bending rigidity, for example, when compared with the contrast structure in which the inside of the portion corresponding to the general portion 28A of the lateral wall portion 28 is in the state as shown in FIG. 5A, the same bending rigidity is obtained. It is possible to reduce the mass required for this.
- FIG. 7 shows a panel member 50 according to the present embodiment in a cross-sectional view (a view corresponding to FIG. 3 in the first embodiment).
- the panel member 50 is a panel member 20 according to the first embodiment in that the bending portion 54 is not a gradual change portion but a gradual change portion 56B is provided in the lateral wall portion 56 (see FIG. Different from 3).
- Other configurations are substantially the same as those of the first embodiment. Therefore, components that are substantially the same as those of the first embodiment are denoted by the same reference numerals and description thereof is omitted.
- the panel member 50 shown in FIG. 7 is formed of the same fiber reinforced resin material as the panel member 20 (see FIG. 3 and the like) in the first embodiment, and includes a corrugated plate portion 52.
- the undulation of the corrugated plate portion 52 is formed by the standing wall portion 24.
- the upper and lower ends of the wave height direction (arrow H direction) in the corrugated plate portion 52 are configured by horizontal wall portions 56 as second wall portions.
- the horizontal wall part 56 is connected to the standing wall part 24 through the bending part 54, and connects the adjacent standing wall parts 24 alternately up and down.
- the horizontal wall portion 56 includes a flat plate-like general portion 56 ⁇ / b> A that extends in the wavelength direction (arrow W direction) of the corrugated plate portion 52.
- the plate thickness t3 of the general portion 56A of the horizontal wall portion 56 is set to be thinner than the plate thickness t2 of the standing wall portion 24.
- the general portion 56A of the lateral wall portion 56 is pressurized during molding and does not contain at least bubbles having a diameter larger than that of the reinforcing fibers.
- the general part 56A does not contain any bubbles, and in this embodiment, it is set as such.
- the orientation direction of the reinforcing fibers arranged in the general portion 56A of the lateral wall portion 56 is set in a direction along the wavelength direction of the corrugated plate portion 52 (arrow W direction).
- the bent portion 54 that connects the standing wall portion 24 and the lateral wall portion 56 is formed in a curved shape and is set to have a plate thickness equivalent to that of the standing wall portion 24.
- the boundary line between the bent portion 54 and the standing wall portion 24 is indicated by a two-dot chain line c
- the boundary line between the bent portion 54 and the lateral wall portion 56 is indicated by a two-dot chain line e.
- a gradually changing portion 56 ⁇ / b> B whose thickness is gradually reduced as the distance from the bent portion 54 is formed at the end of the lateral wall portion 56 on the bent portion 54 side.
- the general portion 56A of the lateral wall portion 56 is connected to the bending portion 54 via the gradual change portion 56B.
- the boundary line between the gradual change portion 56B and the general portion 56A is indicated by a two-dot chain line f.
- an outer surface 56B1 continuous with the radially outer surface of the bent portion 54 is formed in the same plane as the surface of the general portion 56A of the adjacent lateral wall portion 56. Further, in the gradual change portion 56B, the inner surface 56B2 continuous with the radially inner surface of the bent portion 54, the outer surface 56B1 from the end portion on the bent portion 54 side toward the end portion on the general portion 56A side of the lateral wall portion 56. It is inclined in the direction of gradually approaching the side.
- the press mold for press-molding the panel member 50 has a lower mold and an upper mold, although not shown.
- the lower mold includes a first molding surface for press molding of the panel member 50.
- the upper die is provided with a second molding surface for press molding of the panel member 50 so as to face the upper side of the lower die.
- a portion of the upper mold second molding surface where the general portion 56A of the lateral wall portion 56 is molded is set to have a smaller distance from the lower mold first molding surface than a portion where the standing wall portion 24 is molded. ing.
- mold is performed in the procedure similar to 1st Embodiment.
- the bent portion 54 is formed in a curved shape and set to a plate thickness equivalent to that of the standing wall portion 24, a load is transmitted from one side of the wave plate portion 52 in the wave height direction (arrow W direction) to the other side.
- the load is transmitted well.
- the panel member 50 is sandwiched between the upper panel 12 and the lower panel 14 similarly to the panel member 20 in the first embodiment shown in FIG. 1, the load between the upper panel 12 and the lower panel 14.
- the transmission (propagation) performance is also good.
- the gradually changing portion 56B is formed instead of the suddenly changing portion at the end of the side wall portion 56 shown in FIG. 7 on the side of the bent portion 54, even if the plate thickness of the side wall portion 56 is changed, it is locally changed. Weakening can be suppressed.
- FIG. 8 shows a panel member 60 according to the present embodiment in a sectional view (a view corresponding to FIG. 3 in the first embodiment).
- the panel member 60 is a panel member 20 according to the first embodiment in that the gradually changing portion 64B is provided in the standing wall portion 64 without using the bending portion 66 as a gradually changing portion (see FIG. Different from 3).
- Other configurations are substantially the same as those of the first embodiment. Therefore, components that are substantially the same as those of the first embodiment are denoted by the same reference numerals and description thereof is omitted.
- a panel member 60 shown in FIG. 8 is formed of a fiber reinforced resin material similar to the panel member 20 (see FIG. 3 and the like) in the first embodiment, and includes a corrugated plate portion 62.
- the corrugation of the corrugated plate portion 62 is formed by a standing wall portion 64 as a first wall portion.
- the standing wall portion 64 is a component that is substantially the same as the standing wall portion 24 in the first embodiment, except for the points described below.
- Upper and lower ends of the wave height direction (arrow H direction) in the corrugated plate portion 62 are configured by the lateral wall portion 28.
- the horizontal wall portion 28 is connected to the standing wall portion 64 via a bent portion 66 and connects the adjacent standing wall portions 64 alternately in the vertical direction.
- the plate thickness t1 of the general portion 28A of the horizontal wall portion 28 is set to be thinner than the plate thickness t4 of the general portion 64A of the standing wall portion 64 (portion other than the gradually changing portion 64B described later).
- the general portion 28A of the lateral wall portion 28 is pressurized at the time of molding and does not contain at least bubbles having a diameter larger than that of the reinforcing fibers.
- the general part 28A does not contain any bubbles, and in this embodiment, it is set as such.
- the orientation direction of the reinforcing fibers arranged in the general portion 28A of the lateral wall portion 28 is set to a direction along the wavelength direction (arrow W direction) of the corrugated plate portion 62.
- the bent portion 66 that connects the standing wall portion 64 and the lateral wall portion 28 is formed in a curved shape and set to a plate thickness equivalent to that of the lateral wall portion 28.
- the boundary line between the bent portion 66 and the standing wall portion 64 is indicated by a two-dot chain line g
- the boundary line between the bent portion 66 and the lateral wall portion 28 is indicated by a two-dot chain line h.
- a gradually changing portion 64B is formed in which the plate thickness is gradually increased as the distance from the bending portion 66 increases.
- the general portion 64A of the standing wall portion 64 is connected to the bending portion 66 via the gradual change portion 64B.
- a boundary line between the gradual change portion 64B and the general portion 64A is indicated by a two-dot chain line i.
- a surface 64B2 that is continuous with the radially inner surface of the bent portion 66 is formed in the same plane as the surface of the general portion 64A of the adjacent standing wall portion 64.
- a surface 64B1 that is continuous with the radially outer surface of the bent portion 66 is an opposite surface as it goes from the end portion on the bent portion 66 side toward the end portion on the general portion 64A side of the standing wall portion 64. It is inclined in a direction gradually separating from the surface 64B2 side.
- the press mold for press-molding the panel member 60 has a lower mold and an upper mold, although not shown.
- the lower mold includes a first molding surface for press molding of the panel member 60.
- the upper mold is disposed opposite to the upper side of the lower mold and includes a second molding surface for press molding of the panel member 60.
- molding surface of the said upper mold is between the 1st shaping
- the interval is set narrow.
- mold is performed in the procedure similar to 1st Embodiment.
- the same operations and effects as those of the first embodiment described above can be obtained.
- the bent portion 66 is formed in a curved shape and set to a plate thickness equivalent to that of the lateral wall portion 28, the reinforcing fibers can be further aligned in the bending direction of the bent portion 66.
- the gradually changing portion 64B is formed at the end of the standing wall portion 64 on the bent portion 66 side, local weakening is suppressed even if the plate thickness of the standing wall portion 64 is changed.
- FIG. 9 is a perspective view of the laminated structure 70 including the panel member 72 according to the present embodiment.
- 10 is a perspective view of the panel member 72
- FIG. 11 is an enlarged sectional view taken along line 11-11 of FIG.
- the present embodiment has substantially the same configuration as the first embodiment except for the points described below. Therefore, components that are substantially the same as those of the first embodiment are denoted by the same reference numerals and description thereof is omitted.
- a corrugated panel member 72 is sandwiched between the upper panel 12 constituting the upper end portion and the lower panel 16 constituting the lower end portion.
- the lower panel 16 has the same configuration as the lower panel 14 (see FIG. 1) in the first embodiment, except that a later-described recessed groove portion 16A (see FIG. 11) is formed.
- the panel member 72 has the same configuration as that of the panel member 20 (see FIGS. 1 to 3) in the first embodiment except for the points described below.
- the panel member 72 is formed with blocking wall portions 76 at both ends in the extending direction (arrow L direction) of the flange portion 74 that is convex upward.
- the blocking wall portion 76 is a vertical wall portion that closes both sides in the extending direction (arrow L direction) of the flange portion 74.
- the extending direction (arrow L direction) of the flange portion 74 is a direction orthogonal to the wavelength direction (arrow W direction) of the corrugated plate portion 22 and orthogonal to the wave height direction (arrow H direction) of the corrugated plate portion 22. .
- the lower wall portion (the side wall portion 28 (28 ⁇ / b> X)) and the bent portion 26 (26 ⁇ / b> X) connected to the standing wall portion 24 are the side of the standing wall portion 24.
- An extending portion 78 extends on the opposite side.
- the extending portion 78 is formed integrally with the bent portion 26 (26X) on the base side, and extends in the extending direction of the flange portion 74 (direction perpendicular to the paper surface of FIG. 11).
- the lower panel 16 has a recessed groove portion 16 ⁇ / b> A corresponding to each flange portion 74.
- Each recessed groove portion 16 ⁇ / b> A has a pair of extending portions 78 formed below each flange portion 74.
- the press mold for press-molding the panel member 72 has a lower mold and an upper mold, although not shown.
- the lower mold includes a first molding surface for press molding of the panel member 72.
- the upper mold is provided with a second molding surface for press molding of the panel member 72 so as to face the upper side of the lower mold.
- a portion of the upper mold second molding surface where the general portion 28A of the lateral wall portion 28 is molded is set to be narrower than the portion where the standing wall portion 24 is molded than the first molding surface of the lower mold. ing.
- mold is performed in the procedure similar to 1st Embodiment.
- the same operations and effects as the first embodiment described above can be obtained.
- the bending portion 26 (26X) is subjected to an inward warping force to reduce the obtuse angle of the bending portion 26 (26X). This can be suppressed. That is, the lateral wall portion 28 (28X) continuous to the bent portion 26 (26X) has a force to cause the bent portion 26 (26X) to warp and the L extending from the lateral wall portion 28 (28X) to the extending portion 78. The force which tries to warp the character-shaped part acts, and these cancel each other.
- FIG. 12 shows a modification of the panel member 72 of the fourth embodiment.
- symbol is attached
- the panel member 80 is also on the side of the standing wall portion 24 from the bent portion 26 (26 Y) that connects the standing wall portion 24 and the lateral wall portion 28 (28 Y) that is the upper wall portion of the lateral wall portion 28.
- the extension part 82 is extended on the opposite side.
- the extending part 82 is formed integrally with the bent part 26 (26Y) on the base side.
- the operation and effect of the fourth embodiment can be obtained.
- the bending portion 26 (26Y) is subjected to an inward warping force to reduce the obtuse angle of the bending portion 26 (26Y). This can be suppressed. That is, the lateral wall portion 28 (28Y) continuous to the bent portion 26 (26Y) has a force to cause the bent portion 26 (26Y) to warp and the L extending from the lateral wall portion 28 (28Y) to the extending portion 82. The force which tries to warp the character-shaped part acts, and these cancel each other. Therefore, the internal curvature of the bending part 26 (26Y) is suppressed, and the dimensional accuracy in the bending part 26 (26Y) improves.
- FIG. 13 is a cross-sectional view (a diagram corresponding to FIG. 11 of the fourth embodiment) in which the panel member 90 according to the present embodiment is cut along the wavelength direction (arrow W direction) of the corrugated plate portion 22. It is shown.
- the present embodiment has substantially the same configuration as the fourth embodiment except for the points described below. For this reason, in this embodiment, about the component substantially the same as 1st, 4th embodiment, the same code
- the panel member 90 of the present embodiment has a second wall portion instead of the lateral wall portion 28 (28X) (see FIG. 11) constituting the lower wall portion of the fourth embodiment.
- a lower wall portion 92 is formed.
- the horizontal wall part 28 (28Y) which comprises the upper wall part of the panel member 90 is formed similarly to 4th Embodiment.
- the lower wall portion 92 constitutes a lower end portion in the wave height direction (arrow H direction) in the corrugated plate portion 22 and is connected to the standing wall portion 24 via a bent portion 26 (26X).
- the lower wall portion 92 includes a flat plate-like general portion 92A that is bonded to the lower panel 14 in a surface contact state.
- the general portion 92 ⁇ / b> A extends in the wavelength direction (arrow W direction) of the corrugated plate portion 22.
- the plate thickness t5 of the general portion 92A is equal to the plate thickness t1 of the lateral wall portion 28 (28Y) constituting the upper wall portion, and is set to be thinner than the plate thickness t2 of the standing wall portion 24.
- the general portion 92A is pressurized at the time of molding and does not contain at least bubbles larger in diameter than the reinforcing fibers.
- the general part 92A does not contain any bubbles, and in this embodiment, it is set as such. Further, the orientation direction of the reinforcing fibers arranged in the general portion 92A is set to a direction along the wavelength direction (arrow W direction) of the corrugated plate portion 22.
- the lower surface of the general portion 92A is set on the same plane as the lower surface of the extending portion 78. Further, the end portion of the general portion 92 ⁇ / b> A on the extension portion 78 side is disposed with a slight gap between the end portion 78 and the extension portion 78.
- the lower wall part 92 is provided with the shelf part 92C formed continuously from the bending part 26 (26X).
- the shelf portion 92 ⁇ / b> C is formed on the upper side of the space between the general portion 92 ⁇ / b> A and the extension portion 78 and is disposed in parallel to the lower panel 14. That is, the shelf 92 ⁇ / b> C also extends in the wavelength direction (arrow W direction) of the corrugated plate 22.
- the plate thickness t6 of the shelf portion 92C is equal to the plate thickness t5 of the general portion 92A, and is set to be thinner than the plate thickness t2 of the standing wall portion 24.
- the shelf 92C is pressurized at the time of molding, and does not contain at least bubbles larger in diameter than the reinforcing fibers. In addition, it is preferable that no air bubbles are contained in the shelf 92C, and in this embodiment, it is set as such.
- the orientation direction of the reinforcing fibers arranged on the shelf portion 92 ⁇ / b> C is set to a direction along the wavelength direction (arrow W direction) of the corrugated plate portion 22.
- the end portion of the shelf portion 92C opposite to the bent portion 26 (26X) and the end portion of the general portion 92A on the extension portion 78 side are integrally connected by a connecting portion 92B.
- the connecting portion 92 ⁇ / b> B is formed substantially parallel to the extending portion 78.
- the press mold for press-molding the panel member 90 has a lower mold and an upper mold, although not shown.
- the lower mold includes a first molding surface for press molding of the panel member 90.
- the upper die is provided with a second molding surface for press molding of the panel member 90 so as to face the upper side of the lower die.
- the portion for forming the general portion 28A of the lateral wall portion 28 (28Y) and the general portion 92A and the shelf portion 92C of the lower wall portion 92 is more than the portion for forming the standing wall portion 24.
- the space between the lower mold and the first molding surface is set narrow.
- mold is performed in the procedure similar to 1st Embodiment.
- a flat lower panel 14 shown in FIG. 13 can be applied instead of the lower panel 16 in which the recessed groove portion 16A as shown in FIG. 11 (fourth embodiment) is formed.
- the 14 shapes can be simplified.
- this recessed portion 94 functions as a reservoir for adhesive.
- This recessed portion 94 functions as a reservoir for adhesive.
- the agent can be stored in the recess 94. Therefore, the adhesive can be prevented from protruding to a wide range.
- the panel member may be another panel member such as a panel member in which a cross-sectional shape cut along the wavelength direction of the corrugated plate portion is formed into a hat shape, for example. Good.
- one or both of the upper panel 12 and the lower panels 14 and 16 of the above embodiment may not be joined to the panel member.
- the general part does not contain any bubbles, but the general part contains bubbles having the same diameter as the reinforcing fibers or smaller diameter than the reinforcing fibers, and the general part is reinforced. A configuration in which bubbles slightly larger in diameter than fibers are contained can also be adopted.
- the fiber reinforced resin material applied to the panel member may be a composite material in which the reinforced fibers are solidified with a thermosetting resin.
- the manufacturing method of the panel member is based on an SMC (Sheet Molding Compound) method of pressing while heating.
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Abstract
Description
本発明の第1の実施形態に係るパネル部材について図1~図4を用いて説明する。図1には本実施形態に係るパネル部材20を含む積層構造体10が斜視図で示されている。また、図2には、パネル部材20が斜視図で示され、図3には、図2の3-3線に沿った拡大断面図が示されている。
ここで、図6Cを参照しながら、パネル部材20をプレス成形するためのプレス型34について説明する。図6Cに示されるように、プレス型34は、下型36及び上型40を有する金型である。
次に、プレス型34を用いたパネル部材20の製造方法について説明しながら、本実施形態の作用及び効果について説明する。パネル部材20の製造方法は、本実施形態ではスタンピング成形により、図6A、図6B、図6Cの順に行われる。図6Aは第一工程の初期を示し、図6Bは第一工程の中期を示し、図6Cは第二工程(型締め完了時)を示している。
次に、本発明の第2の実施形態について図7を用いて説明する。図7には、本実施形態に係るパネル部材50が断面図(第1の実施形態における図3に相当する図)で示されている。この図に示されるように、パネル部材50は、曲げ部54を徐変部分とせずに横壁部56に徐変部56Bを設けている点で、第1の実施形態に係るパネル部材20(図3等参照)とは異なる。他の構成は、第1の実施形態と実質的に同様の構成となっている。よって、第1の実施形態と実質的に同様の構成部については、同一符号を付して説明を省略する。
次に、本発明の第3の実施形態について図8を用いて説明する。図8には、本実施形態に係るパネル部材60が断面図(第1の実施形態における図3に相当する図)で示されている。この図に示されるように、パネル部材60は、曲げ部66を徐変部分とせずに立壁部64に徐変部64Bを設けている点で、第1の実施形態に係るパネル部材20(図3等参照)とは異なる。他の構成は、第1の実施形態と実質的に同様の構成となっている。よって、第1の実施形態と実質的に同様の構成部については、同一符号を付して説明を省略する。
次に、本発明の第4の実施形態について図9~図11を用いて説明する。図9には、本実施形態に係るパネル部材72を含む積層構造体70が斜視図で示されている。また、図10には、パネル部材72が斜視図で示され、図11には、図9の11-11線に沿った拡大断面図が示されている。なお、本実施形態は、以下に説明する点を除き、第1の実施形態と実質的に同様の構成となっている。よって、第1の実施形態と実質的に同様の構成部については、同一符号を付して説明を省略する。
次に、第4の実施形態のパネル部材72の変形例について説明する。図12には、第4の実施形態のパネル部材72の変形例が示されている。なお、パネル部材72と同様の構成部については、同一符号を付して説明を省略する。
次に、本発明の第5の実施形態について図13を用いて説明する。図13には、本実施形態に係るパネル部材90が波板部22の波長方向(矢印W方向)に沿って切断した状態の断面図(第4の実施形態の図11に相当する図)で示されている。なお、本実施形態は、以下に説明する点を除き、第4の実施形態と実質的に同様の構成となっている。このため、本実施形態において、第1、第4の実施形態と実質的に同様の構成部については、同一符号を付して説明を省略する。
なお、上記実施形態の変形例として、パネル部材は、例えば、波板部の波長方向に沿って切断した断面形状がハット形状に形成されたパネル部材等のような他のパネル部材であってもよい。
Claims (7)
- 繊維強化樹脂材で成形された波板部の起伏を形成する第一壁部と、
前記波板部における波高方向の上下端部を構成して前記第一壁部に曲げ部を介して接続された第二壁部と、
を有し、
前記第二壁部は、前記波板部の波長方向に延びる一般部を備え、
前記一般部は、前記第一壁部よりも薄い板厚に設定され、
前記一般部に配置された強化繊維の配向方向が前記波板部の波長方向に沿う方向に設定されたパネル部材。 - 前記一般部は、少なくとも強化繊維よりも大径の気泡を含有していない、請求項1記載のパネル部材。
- 前記曲げ部が湾曲状に形成されて前記第一壁部と同等の板厚に設定され、
前記第二壁部における前記曲げ部の側の端部には、前記曲げ部から離間するに従って板厚が漸次縮小された徐変部が形成されている、請求項1又は請求項2に記載のパネル部材。 - 前記曲げ部が湾曲状に形成されて前記第二壁部と同等の板厚に設定され、
前記第一壁部における前記曲げ部の側の端部には、前記曲げ部から離間するに従って板厚が漸次拡大された徐変部が形成されている、請求項1又は請求項2に記載のパネル部材。 - 前記曲げ部から前記第一壁部の側とは反対側に延出部が延出すると共に前記延出部が当該曲げ部と一体に形成されている、請求項1~請求項4のいずれか1項に記載のパネル部材。
- 請求項1~請求項5のいずれか1項に記載のパネル部材のプレス成形用の第一成形面を備えた下型と、
前記下型の上方側に対向配置されて前記パネル部材のプレス成形用の第二成形面を備え、前記第二成形面のうち前記第二壁部の前記一般部を成形する部位は前記第一壁部を成形する部位よりも前記第一成形面との間の間隔が狭く設定された上型と、
を有するプレス型。 - 請求項6に記載のプレス型を用いたパネル部材の製造方法であって、
前記下型の上にシート状の繊維強化樹脂材を配置した状態で前記上型の前記第二成形面を前記下型の前記第一成形面に対して相対的に接近させて前記繊維強化樹脂材を波板形状に形成する第一工程と、
前記第一工程の後にさらに前記上型の前記第二成形面を前記下型の前記第一成形面に対して相対的に接近させて前記第二壁部の前記一般部となる部位をその板厚方向に圧縮する第二工程と、
を有するパネル部材の製造方法。
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