JP6748870B2 - Decorative panel and panel manufacturing method - Google Patents

Description

The present invention relates to a decorative panel used as a fitting or an interior panel, and a method for manufacturing such a decorative panel.

Conventionally, decorative panels such as hinges and sliding doors, and interior panels such as ceiling panels and wall panels have been used for interior and exterior panels such as ceiling panels and wall panels. It is configured to have a surface decorative material attached to it.
For example, in Patent Document 1 below, a panel having a constitution in which a paperboard is pasted on the front surface side and the back surface side of a core material such as a honeycomb core, and a surface decorative board having an uneven shape is attached to the paperboard is disclosed. It is disclosed.

JP, 2000-257206, A

However, since the panel described in Patent Document 1 is configured to form the uneven shape by the surface decorative plate, it is necessary to increase the thickness of the surface decorative plate in order to increase the unevenness difference of the uneven shape. However, further improvement is desired.

The present invention has been made in view of the above circumstances, and provides a decorative panel that can improve the three-dimensional effect and a panel manufacturing method that can effectively manufacture such a decorative panel while achieving a thin surface layer. It is intended to be provided.

To achieve the above object, the decorative panel according to the present invention, each of the panel thickness direction both sides of the compression deformable and is having a core material panel core layer, and a decorative layer fiber-reinforced resin layer provided a surface layer, characterized in that the concave portion is provided in each of the compressed panels thickness direction both sides in a part the panel thickness direction of the panel core layer.

In addition, in order to achieve the above-mentioned object, the panel manufacturing method according to the present invention is a fiber sheet that forms a fiber reinforced resin layer on both sides in the panel thickness direction of a panel core material having a core material that can be compressed and deformed. and in a state in which the uncured resin composition was placed a decorative sheet of the panel thickness direction both sides is interposed respectively, so that a concave portion is formed in each of the panel thickness direction on both sides, each of the upper and lower molds The decorative panel is manufactured by pressing the upper and lower molds so as to compress a part of the panel core material in the panel thickness direction by the convex portion provided in the panel.

The decorative panel according to the present invention has the above-described configuration, and thus it is possible to improve the three-dimensional effect while reducing the thickness of the surface layer, and the panel manufacturing method according to the present invention is With such a structure, such a decorative panel can be effectively manufactured.

(A)-(d) typically shows an example of the makeup|decoration panel which concerns on one Embodiment of this invention, (a) is a partial fracture|rupture outline corresponding to the X1-X1 line arrow in (b). A cross-sectional view, (b) is a partially cutaway schematic front view, (c) is a partially cutaway schematic front view schematically showing an example of a panel core material included in the decorative panel, and (d) is the panel. It is a partially broken schematic plan view of a core material. (A)-(c) is a partial fracture schematic side view which shows typically an example of the panel manufacturing method concerning one embodiment of the present invention. (A)-(c) is a partially broken schematic side view which shows typically an example of the same panel manufacturing method. (A)-(c) is a partially broken schematic side view which shows typically an example of the same panel manufacturing method. (A)-(c) shows typically an example of the decorative panel which concerns on other embodiment of this invention, (a) shows the partial fracture|rupture corresponding to the X2-X2 arrow line in (b). A schematic transverse cross-sectional view, (b) is a partially broken schematic front view, and (c) is a partially broken schematic front view schematically showing an example of a panel core material included in the decorative panel. (A)-(c) shows typically an example of the makeup|decoration panel which concerns on other embodiment of this invention, (a) is a part corresponding to the X3-X3 arrow line in (b). FIG. 2B is a partially cutaway schematic front view, and FIG. 3C is a partially cutaway schematic front view schematically showing an example of a panel core material included in the decorative panel. (A), (b) is a schematic plan view which each shows an example of the decorative panel which concerns on other embodiment of this invention typically.

Embodiments of the present invention will be described below with reference to the drawings.
1 to 4 are diagrams schematically showing an example of a decorative panel according to the first embodiment and an example of a panel manufacturing method of the decorative panel.
2 to 4, the panel core material is shown as a cross-sectional view.
Further, in each of the following embodiments, the vertical direction and the like will be described with reference to a state in which a decorative panel that is elongated in one direction is arranged with the longitudinal direction along the vertical direction.

As shown in FIG. 1, the decorative panel 1 according to the present embodiment includes a fiber-reinforced resin layer 23 and a decorative resin layer on at least one side in the panel thickness direction of a panel core layer 10 having a core material 16 that can be compressed and deformed. The surface layer 20 having the layer 24 is provided. Further, the decorative panel 1 is configured such that a part 17 of the panel core layer 10 is compressed and a concave portion 25 is provided at least on one side in the panel thickness direction. In the present embodiment, the decorative panel 1 has a configuration in which a part 17 of the panel core layer 10 is compressed in the panel thickness direction and a concave portion 25 is provided. Further, the decorative panel 1 has a structure in which the surface layers 20, 20 are provided on both sides of the panel core layer 10 in the panel thickness direction. Further, in the present embodiment, the panel core layer 10 is the panel core material 10 in which the core material 16 is housed in the space surrounded by the frame body 11 including the four peripheral frames 12, 13, 13, and 14.

The decorative panel 1 has a substantially rectangular flat plate shape that is long in one direction. This decorative panel 1 is a joiner panel that opens and closes an entrance and an exit when a surface layer 20, 20 is provided on both sides in the thickness direction and both sides in the thickness direction are decorative surfaces as in the present embodiment. It may be used as a partition panel of a partition or the like, a furniture component, or the like. Further, instead of the aspect in which both sides in the thickness direction are decorative surfaces, the surface layer 20 may be provided only on one side in the panel thickness direction of the panel core material 10. Also in this case, it can be used for the same purpose as described above. Further, the decorative panel 1 may be used to form a part of the panel, for example, a frame portion or a mirror plate portion of the frame panel. Further, the decorative panel 1 is used as a ceiling panel or a wall panel (partitioning wall panel), a waist wall panel, a skirting panel, a rim panel, an opening frame panel, and the like whose anti-decorative surface side is arranged toward the mounting base side. It may be one. Further, the length dimension (vertical dimension, height dimension), width dimension, thickness dimension and the like of the decorative panel 1 may be appropriately determined depending on the application of the decorative panel 1.

In the present embodiment, this decorative panel 1 is used as a sliding door panel as a fitting panel. In this case, the vertical dimension (door height dimension) of the decorative panel 1 may be about 1800 mm to 3000 mm, the door width dimension may be about 600 mm to 1200 mm, and the door thickness dimension may be about 20 mm to 40 mm.
Further, in the present embodiment, as shown in FIG. 1A, concave portions 25, 25 are provided on both sides in the thickness direction of the decorative panel 1 by compressing a part 17 of the panel core layer 10 in the panel thickness direction. It has a specific configuration. Further, the concave portions 25, 25 on both sides in the thickness direction are provided so as to be positioned so as to overlap each other when viewed in the panel thickness direction. In addition, these concave portions 25, 25 have a concave groove shape extending in the vertical direction (longitudinal direction) of the decorative panel 1. Further, the width dimension (groove width dimension) of each of these recessed portions 25, 25 along the door width direction and the depth dimension (groove depth dimension) along the door thickness direction are substantially the same throughout the groove longitudinal direction. The dimensions are used.

In addition, in the present embodiment, these concave portions 25, 25 are provided at one end portion in the door width direction that is the door end side end portion of the decorative panel 1 so that they function as a handle portion (pull portion). The structure is provided so as to open toward the outer side in the thickness direction. Further, the groove width dimensions of these recessed portions 25, 25 are made substantially the same as each other, and the groove depth dimensions are made substantially the same as each other. The groove width dimension and the groove depth dimension of the recessed portions 25, 25 may be set to appropriate dimensions from the viewpoint of handleability and the like. Further, in the illustrated example, the concave portions 25, 25 have a substantially rectangular groove shape in which the inner surfaces on both sides in the groove width direction are parallel to each other and face the door width direction, and the groove bottom faces the door thickness direction. Note that, instead of such an aspect, both or one of the inner surfaces on both sides in the groove width direction may have an inclined surface shape that faces the outer side in the panel thickness direction or the center side in the thickness direction. In addition, an example is shown in which the chamfered portion having an R chamfer is formed at the inner corners of the recessed portions 25, 25 between the inner surfaces on both sides in the groove width direction and the groove bottom surface and the opening edge portions on both sides in the groove width direction.

As shown in FIG. 1( c ), the frame body 11 of the panel core material 10 includes an upper horizontal frame 12, a pair of left and right vertical frames 13, 13 and a lower horizontal frame 14 which constitute the four-circumferential frames 12, 13, 13, 14. Equipped with. Further, the frame body 11 is provided with a plurality of horizontal rails 15 and 15 which are vertically spaced from each other so as to be bridged over the left and right vertical frames 13 and 13. Further, in the illustrated example, an example in which the lower horizontal frame 14 has a configuration in which a plurality of (two in the illustrated example) are vertically stacked is shown. In addition, an example is shown in which crosspiece members serving as processing bases for mounting holes for traveling members such as door rollers are stacked on the upper sides of the left and right (longitudinal direction) ends of the lower horizontal frame 14. Depending on the application of the decorative panel 1 and the like, a running member such as a runner and a mounting hole for a handle, a locking device, and the like are provided below the left and right end portions of the upper horizontal frame 12 and inside the vertical frame 13. The processing base or the mounting base may be provided. Similarly, the upper horizontal frame 12 may also be configured by stacking a plurality of upper and lower frames. Further, instead of or in addition to the aspect in which the horizontal rail 15 is provided in the frame body 11, a configuration may be adopted in which a long vertical rail is provided in the vertical direction.

Further, the four peripheral frames 12, 13, 13, 14 and the horizontal rails 15 are formed into a substantially rectangular column shape, and the dimensions along the panel thickness direction are substantially the same so that both surfaces in the panel thickness direction are substantially the same plane. It is a dimension. In the illustrated example, the four circumferential frames 12, 13, 13, 14 and the horizontal rails 15 have substantially the same dimension along the panel thickness direction and the width dimension orthogonal to the length dimension. ..
The four-sided frames 12, 13, 13, 14 and the cross rails 15 are made of wood laminated boards such as plywood and LVL (single board laminated material), wood boards such as PB (particle board), MDF (medium density fiber board), It may be formed of a wood-based material such as a wood fiber board such as a hard board. Further, the wood-based material may be a wood powder/plastic composite material (WPC) in which a synthetic resin-based material contains wood powder, an inorganic filler, a compatibilizer, a coloring agent, and the like in a predetermined content ratio. Further, the frame body 11 is not limited to the one made of such a wood-based material, but may be made of a synthetic resin-based material or a metal-based material.

Further, in the present embodiment, the recesses 12a, 14a, 15a are provided on at least one side in the panel thickness direction of the frame body 11 so as to form a recessed portion continuously provided in the recessed portion 25. In the present embodiment, corresponding to the concave portions 25, 25 provided on both sides in the panel thickness direction, concave portions continuously provided on the concave portions 25, 25 are provided on both sides of the frame body 11 in the panel thickness direction. As configured, the recesses 12a, 12a, 14a, 14a, 15a, 15a are provided. As will be described later, the recesses 12a, 12a, 14a, 14a, 15a, 15a of the frame body 11 are formed by the convex portions 3, 5 (see FIG. 4) provided on the upper and lower molding dies 2, 4 (see FIG. 4). When the portion 17 of the core material 16 is compressed, it is provided so as not to impede the compressive deformation of the portion 17 of the core material 16. In other words, the concave portions 12a, 12a, 14a, 14a, 15a, 15a of the frame body 11 are provided so as to be able to receive the convex portions 3, 5 provided on the upper and lower molds 2, 4. ..

Further, the upper and lower horizontal frames 12, 14 and the horizontal rails 15 on both sides in the panel thickness direction are arranged such that the concave portions 25, 25 on both sides in the panel thickness direction are provided at one end of the decorative panel 1 over the entire length. The concave portions 12a, 12a, 14a, 14a, 15a, 15a are provided in each of the above.
That is, as shown in FIGS. 1C and 1D, notches are formed on both sides in the panel thickness direction of one end portion in the longitudinal direction of the upper horizontal frame 12 so as to open to the outside and both upper and lower sides in the panel thickness direction. The recesses 12a, 12a are provided in the structure. In addition, recesses 14a, 14a are formed in a notch shape on both sides in the panel thickness direction at both ends in the longitudinal direction of the lower horizontal frames 14 stacked on top of each other so as to open to the outside in the panel thickness direction and both sides in the vertical direction. It is configured. Further, recesses are provided in a notch shape on both sides in the panel thickness direction of the crosspiece member provided on the upper side of one end side in the longitudinal direction of the lower horizontal frame 14 so as to open to the outside in the panel thickness direction and both sides in the vertical direction. ing. Further, recesses 15a, 15a are provided in a notched shape on both sides in the panel thickness direction of one end portion in the longitudinal direction of each horizontal rail 15 so as to open to the outside in the panel thickness direction and both sides in the vertical direction.

The upper and lower horizontal frames 12, 14 and the recesses 12a, 12a, 14a, 14a, 15a, 15a of the horizontal rails 15 are provided so as to coincide with each other in the panel width direction. The dimensions along the panel thickness direction are substantially the same. The dimension along the panel width direction and the dimension along the panel thickness direction of these recesses 12a, 12a, 14a, 14a, 15a, 15a are the groove width dimension and groove depth dimension desired by the above-mentioned recessed portions 25, 25. As described above, the dimensions are appropriately set according to the thicknesses of the surface layers 20 and 20 described later. Further, the both corners of the bottom surface of the recesses 12a, 12a, 14a, 14a, 15a, 15a and the opening edge portions on both sides are chamfered in the shape of an R chamfer corresponding to the recesses 25, 25.

Further, in the present embodiment, as shown in FIGS. 1C and 1D, the decorative sheets 24 of the surface layers 20 and 20 to be described later are provided on the outer surfaces of the vertical frames 13 and 13 facing outward in the panel width direction. The insertion grooves 13a, 13a into which the end portions 24a, 24a of 24 are inserted are provided over the entire length. The insertion grooves 13a, 13a on both sides in the panel width direction are provided so as to open outward in the panel width direction. Further, the insertion grooves 13a, 13a are provided so as to be located substantially at the centers of the vertical frames 13, 13 in the panel thickness direction. The groove depth dimension along the panel width direction and the groove width dimension along the panel thickness direction of these insertion grooves 13a, 13a are determined from the viewpoints of insertability and retention of the end portions 24a, 24a of the decorative sheets 24, 24. Therefore, it may be an appropriate size.

As shown in FIG. 1C, the core material 16 of the panel core material 10 is housed so as to be filled in the space surrounded by the frame body 11. In the present embodiment, as described above, the core material is provided in each of the spaces in the four-sided frames 12, 13, 13, and 14 which are vertically divided by the plurality of horizontal rails 15 and 15 which are vertically spaced from each other. 16 is accommodated. The dimension of the core material 16 along the panel thickness direction (the dimension along the panel thickness direction before compression deformation in the part 17) is substantially the same as the dimension of the frame body 11 along the panel thickness direction. ..

Such a core material 16 may be a foamed molded product molded from a foamed resin material such as urethane foam, but in the present embodiment, a large number of hollow cylindrical cells open on both sides in the panel thickness direction. The honeycomb-shaped core material 16 is composed of the above aggregate. That is, the core material 16 is a so-called paper core. With such a core material 16, when molding the decorative panel 1 as described later, the uncured resin composition 22 (see FIG. 2A, etc.) forming the fiber reinforced resin layer 23 is the core material. The 16 pieces are appropriately attached to both sides in the panel thickness direction, and the integrity can be improved.
Further, the core material 16 may be formed by stacking and bonding paper materials such as corrugated cardboard and kraft paper with an adhesive. Further, as the core material 16, such a paper material may be further impregnated with a reinforcing resin such as an epoxy resin. In addition, a metallic material such as an aluminum material, a hard polyvinyl chloride resin, or a polypropylene resin may be used. It may be formed of a synthetic resin material such as.

Further, in the illustrated example, a hollow cylindrical cell of the core material 16 is schematically shown, and a corrugated portion is provided between thin sheets whose thickness direction extends in the panel width direction. However, it is not limited to such an aspect. As the core material 16, a hollow cylindrical cell having various shapes such as a honeycomb shape (hexagonal shape), a rectangular shape, a cylindrical shape, or the like. It may be the one that is said to be. Further, the core material 16 may be fixed to the frame body 11 by a fastener such as staples or an adhesive. The cell size (cell diameter, cell width) of the hollow cylindrical cell of the core material 16 may be an appropriate size from the viewpoint of weight reduction or strength, and may be 1 mm or more and 25 mm or less, Preferably, it may be 5 mm or more and 15 mm or less.

The compression portion 17 as a part of the core material 16 is compressed in the panel thickness direction to form the concave portions 25, 25 in the decorative panel 1. The dimension (compressed portion thickness dimension) t2 of the compressed portion (compressed portion) 17 of the core material 16 along the panel thickness direction is the dimension along the panel thickness direction of the uncompressed portion (non-compressed portion thickness). It may be smaller than the dimension) t1 minus the thickness dimension of the surface layers 20, 20 on both sides in the thickness direction. That is, the compression portion 17 of the core material 16 is formed so that the concave portions 25, 25 having a depth dimension larger than the thickness dimension of the surface layers 20, 20 are formed on both sides in the thickness direction of the decorative panel 1. May be compressed.

In the present embodiment, the thickness t2 of the compressed portion is set to 3/5 or less of the thickness t1 of the non-compressed portion. In the illustrated example, the thickness t2 of the compressed portion is set to about 3/10 of the thickness t1 of the non-compressed portion. When the thickness t2 of the compression portion 17 differs depending on the region, the thickness t2 of the compression portion may be grasped as the thickness t2 of the thinnest portion. The thickness t2 of the compressed portion may be an appropriate dimension depending on the desired depth of the recessed portions 25, 25, the compressible dimension of the core material 16, etc., and the thickness t1 of the non-compressed portion. The size may be 1/20 or more.

The decorative layer 24 that constitutes the surface layer 20 is a thin sheet-shaped decorative sheet 24 in the present embodiment. As the decorative sheet 24, a veneer or other veneer (decorative veneer) formed of natural wood (named wood), decorative printed paper on which various patterns (patterns) such as a wood grain pattern are printed, or synthetic resin-based It may be a resin sheet (film) or the like. Examples of the resin film include vinyl chloride resin film, polyethylene resin film, polyethylene terephthalate resin film, polypropylene resin film, polycarbonate resin film, acrylic resin film, urethane resin film and the like. The thickness of the resin film is, for example, 0.02 mm to 1.0 mm, preferably 0.05 mm to 0.2 mm, more preferably 0.06 mm to 0.12 mm.

The thickness of the decorative veneer that constitutes the decorative sheet 24 is, for example, in the range of 0.2 mm to 1.0 mm. When the decorative sheet 24 is a decorative veneer, a backing material such as a non-woven fabric may be attached to the back surface side of the decorative veneer via an adhesive. As the adhesive in this case, a non-water-soluble adhesive in which water does not easily migrate to the decorative veneer is preferably exemplified. Examples of water-insoluble adhesives include solution-type acrylic copolymers, synthetic rubber-based adhesives, and hot-melt adhesives that are thermoplastic synthetic resins, alone or in combination of two or more. can do. Examples of the hot melt adhesive include ethylene vinyl acetate (EVA) and urethane hot melt (PUR). Examples thereof include epoxy resin-based, urethane-based, vinyl chloride-based, and vinyl acetate-based adhesives, which may be used alone or in combination of two or more.

As shown in FIG. 2( a ), the fiber-reinforced resin layer 23 that constitutes the surface layer 20 has a configuration in which the uncured resin composition 22 is impregnated in the fiber sheet 21, and is also called a resin-impregnated fiber sheet layer. obtain. The thickness of the fiber reinforced resin layer 23 may be an appropriate thickness depending on the type, the basis weight, the thickness, etc. of the fiber sheet 21 selected according to the application of the decorative panel 1 and the like. The thickness of the fiber-reinforced resin layer 23 may be, for example, about 0.1 mm to 1.0 mm, or about 0.2 mm to 0.6 mm.
Examples of the fiber sheet 21 include woven and non-woven fabrics and mats of reinforcing fibers such as glass fibers, carbon fibers and mineral fibers. Examples of the woven fabric of glass fibers include a glass cloth, which is a woven fabric such as a plain weave and a entangled weave, which is woven using glass roving for warp and weft. As the nonwoven fabric of glass fibers, for example, glass fibers having a length of about 10 mm are dispersed in water, then scooped out by a wet papermaking method, dehydrated, made into a sheet, and coated with an adhesive such as an epoxy resin or an acrylic resin. Examples thereof include glass paper. As the glass fiber mat, glass strands cut into long fiber shapes (for example, a length of about 30 mm, preferably about 50 mm) are evenly dispersed in a non-directional manner, and a mat such as a polyester binder is used. An example is a glass mat or the like that is formed into a shape.

Moreover, as a thickness of the fiber sheet 21, the range of 0.1 mm-0.5 mm is illustrated, for example. When the fiber sheet 21 is a glass mat, the thickness may be about 0.3 mm to 0.5 mm, and when it is a glass cloth, the thickness is about 0.1 mm to 0.3 mm. May be The density of the glass cloth is, for example, 30 to 120 pieces/25 mm. Moreover, as the count (thickness) of the glass thread that constitutes the glass cloth, for example, a range of 67 to 135 tex (g/1000 m) is exemplified.
As the fabric weight of the fiber sheet 21, for example, a range of 150 g/m ² or more and 700 g/m ² or less is illustrated. If the fabric weight of the fiber sheet 21 is too small, the strength tends to decrease, while if it is too large, the fiber sheet 21 tends to become heavy. When glass cloth is used as the fiber sheet 21, the basis weight may be 200 g/m ² or more. When glass paper is used as the fiber sheet 21, the basis weight may be 50 g/m ² or more. Further, when a glass mat is used as the fiber sheet 21, the basis weight may be 300 g/m ² or more. Further, as the fiber sheet 21, a glass mat or a glass cloth is preferable among such glass fiber sheets.

As the fiber sheet 21, a laminate of a plurality of the above glass fiber woven fabrics, non-woven fabrics or mats (glass fiber sheets), or a glass fiber sheet and vegetable fiber woven fabrics, non-woven fabrics, films, papers or mats are used. And may be laminated. The plant fiber is not particularly limited as long as it is a plant fiber used in a plant fiber mat or papermaking, but in consideration of strength, durability, dimensional stability, etc. of the fiber sheet 21, hemp-based natural fiber, palm fiber or agricultural waste. It is preferable to be any one or more of the physical fibers.

Examples of the resin composition 22 with which the fiber sheet 21 is impregnated include non-foaming or low-foaming resins. For example, as the resin main component of the resin composition 22, urethane (polyurethane) resin, polystyrene resin, polyethylene resin, polypropylene resin, phenol resin or the like may be used alone or in combination of two or more kinds.
When the resin composition 22 is a foamed resin, it may have a low foaming ratio of 7 times or less, more preferably 5 times or less, depending on its type. Further, as the resin composition 22, a urethane resin is exemplified as a suitable one, but in this case, the expansion ratio is 1 to 5 times, more preferably 1 to 3 times, and further preferably 1 to 3 times. It may be doubled. When the resin composition 22 is made of such a urethane resin, it is excellent in impregnation property into the fiber sheet 21 and also in adhesive property to the decorative sheet 24 and the panel core material 10 to the core material 16. .. Further, as the urethane resin, ether type or castor oil type urethane resin having water resistance is preferably exemplified. Note that various additives such as a curing agent and a flame retardant can be added to the resin composition 22.

Moreover, the amount of the resin composition 22 with which the fiber sheet 21 is impregnated depends on the thickness of the fiber sheet 21, the desired thickness of the fiber reinforced resin layer 23, the surface strength and surface smoothness of the decorative panel 1, the dimensional stability, and the cost. From the viewpoint of the above, it may be an appropriate amount. For example, the amount of the resin composition 22 with which the fiber sheet 21 is impregnated may be 100 g/m ² or more, and preferably 150 g/m ² or more. Further, from the viewpoint of cost and the like, the amount of the resin composition 22 with which the fiber sheet 21 is impregnated may be 300 g/m ² or less, preferably 250 g/m ² or less.
Further, the impregnation of the resin composition 22 into the fiber sheet 21 is performed by immersing the fiber sheet 21 in a container storing the resin composition 22 and then appropriately squeezing out the surplus, or by spraying the fiber sheet 21. It may be applied by a roller or the like. Alternatively, as in a preferred manufacturing method described later, by laminating a decorative sheet 24 having a resin composition 22 applied to the back surface (anti-decorative surface) side by a spray, a roller, or the like and the fiber sheet 21, the fiber sheet 21 can be obtained. The resin composition 22 may be impregnated with the resin composition 22.

Further, in the present embodiment, the surface layers 20, 20 on both sides in the panel thickness direction are provided on the four circumferential surfaces (panels) of the panel core material 10 so that both the thickness direction both sides and the width direction both end surfaces of the decorative panel 1 are the decorative surfaces. It is provided on both surfaces in the thickness direction and both end surfaces in the panel width direction). Further, the surface layers 20, 20 are provided in a continuous manner on the inner surfaces (both inner surfaces on the both sides in the groove width direction and the groove bottom surface) of the concave portions 25, 25 on both sides in the panel thickness direction. Further, in the present embodiment, the surface layers 20, 20 on both sides in the panel thickness direction are provided in pairs on both sides in the panel thickness direction of the panel core material 10 so that the seams are located on both end faces in the panel width direction. It is assumed to be a separate body. Further, the respective end portions 24a, 24a, 24a, 24a of the decorative sheets 24, 24 of the surface layers 20, 20 are configured to be inserted into the insertion grooves 13a, 13a of the panel core material 10.

In other words, the insertion grooves 13a, 13a are configured such that the portions of the surface layers 20, 20 where the fiber reinforced resin layers 23, 23 are not provided are inserted. Further, the panel core material 10 is also configured such that portions of the surface layers 20, 20 where the fiber reinforced resin layers 23, 23 are not provided are attached to both end surfaces in the panel width direction. That is, the surface layers 20 and 20 are provided so that at least the fiber-reinforced resin layers 23 and 23 are located on both sides of the panel core material 10 in the panel thickness direction. The surface layers 20, 20 and the panel core material 10 may be integrally bonded by the self-adhesiveness of the resin compositions 22, 22 constituting the fiber reinforced resin layers 23, 23, as described later. Moreover, the decorative sheets 24, 24 of the surface layers 20, 20 may be adhered to both end surfaces of the panel core material 10 in the panel width direction by an appropriate adhesive or the like.

Next, an example of a panel manufacturing method for manufacturing the decorative panel 1 according to the present embodiment will be described with reference to FIGS.
In the present embodiment, the upper and lower molds 2, 4 with the fiber sheet 21 constituting the fiber reinforced resin layer 23 and the uncured resin composition 22 interposed between the decorative sheet 24 and the panel core material 10. The decorative panel 1 is manufactured by pressing with the pressure. In addition, in the present embodiment, the fiber sheets 21 and 21 and the uncured resin compositions 22 and 22 that form the fiber reinforced resin layers 23 and 23 are interposed on both sides of the panel core material 10 in the panel thickness direction, respectively. With the decorative sheets 24, 24 arranged on both sides in the panel thickness direction, the decorative panel 1 is manufactured by pressing with the upper and lower molds 2, 4. In addition, a part of the panel core material 10 is formed by the convex portions 3 and 5 provided on the molding dies 2 and 4 on the side facing the decorative surface of at least one of the upper and lower molding dies 2 and 4. The compression part 17 is compressed in the panel thickness direction.

Further, in the present embodiment, the uncured resin composition 22, 22 forming the fiber reinforced resin layer 23 is supplied (applied) to the back surface (anti-decorative surface) side of the decorative sheet 24, 24, and then the fiber sheet 21. , 21 are laminated.
In addition, in the present embodiment, the upper and lower molds 2 and 4 provided with the convex portions 3 and 5 are formed so that the concave portions 25 and 25 are formed on both sides in the thickness direction of the decorative panel 1. I have to. As shown in FIG. 4A, the convex portions 3 and 5 of the upper and lower molds 2 and 4 are provided on the mutually facing sides of the respective molds 2 and 4 so as to project in the mutually facing directions. It is provided in. The convex portions 3 and 5 of the upper and lower molds 2 and 4 are provided so as to extend in the longitudinal direction of the decorative panel 1 in correspondence with the concave portions 25 and 25 of the decorative panel 1 described above. Further, as such molding dies 2 and 4, depending on the type of the resin composition 22, when heating is required for curing, a heater or a medium flow passage through which a heat medium flows may be provided. Good. That is, the molds 2 and 4 may be hot pressed.

First, as shown in FIG. 2A, the decorative sheet 24 is placed on the upper surface of the lower molding die 2 of the upper and lower molding dies 2 and 4 with the decorative surfaces facing each other. That is, the decorative sheet 24 is placed on the lower mold 2 with its back surface (anti-decorative surface) facing upward. Then, the resin composition 22 is applied to the back surface of the decorative sheet 24. The resin composition 22 is applied to the decorative sheet 24 by using a spray, a roller or the like so that the amount of the resin composition 22 impregnated in the fiber sheet 21 becomes the above-mentioned uniform amount (application amount). You may make it apply. In addition, the resin composition 22 is appropriately applied so as not to be applied to the portion of the decorative sheet 24 that is attached to both widthwise end surfaces of the panel core material 10 and both end portions 24a and 24a that are inserted into the insertion grooves 13a and 13a. You may make it apply with the masking (curing) applied.

Further, as shown in FIGS. 2A and 2B, the fiber sheet 21 is laminated on the back surface side of the decorative sheet 24 so that the resin composition 22 applied as described above is impregnated. Like the resin composition 22, the fibrous sheet 21 is located on the decorative sheet 24 on both sides of the panel core 10 in the width direction and on both ends 24a, 24a inserted into the insertion grooves 13a, 13a. It may have an appropriate size so as not to do so.
Further, as shown in FIGS. 2(c) and 3(a), the panel core material 10 is arranged on the fiber sheet 21 on the lower mold 2, and as shown in FIG. The fiber sheet 21 on the upper molding die 4 side is placed on the material 10. Further, as shown in FIGS. 3(c) and 4(a), the decorative sheet 24 having the resin composition 22 applied to the back side in the same manner as described above is impregnated into the fiber sheet 21 with the applied resin composition 22. As described above, the fiber sheet 21 is laminated on the panel core material 10. Instead of such an aspect, an aspect may be adopted in which the fiber sheet 21 is laminated on the decorative sheet 24 side with the resin composition 22 interposed therebetween and placed on the panel core material 10.

Then, as shown in FIG. 4B, the decorative sheets 24, 24 are arranged on both sides in the panel thickness direction of the panel core material 10 with the fiber sheets 21, 21 and the resin compositions 22, 22 interposed therebetween. Then, the upper and lower molds 2 and 4 are clamped. At this time, the pressing may be performed with an appropriate pressing pressure. Further, the resin compositions 22 and 22 are cured by heating as necessary. As a result, the convex portions 3 and 5 of the upper and lower molding dies 2 and 4 compress a part (compressed portion) 17 of the core material 16 to form concave portions 25 and 25 on both sides in the panel thickness direction. Then, as shown in FIG. 4C, the decorative sheets 24, 24 extending on both sides of the panel core member 10 in the panel width direction are attached to both widthwise end faces of the panel core member 10. Further, the respective end portions 24a, 24a, 24a, 24a of the decorative sheets 24, 24 are inserted into the insertion grooves 13a, 13a of the panel core material 10 (see FIG. 1(a)). Further, after the decorative sheets 24, 24 are adhered to both widthwise end surfaces of the panel core material 10 and the respective end portions 24a, 24a, 24a, 24a are inserted into the insertion grooves 13a, 13a, appropriate pressing is performed. The member may be pressed from both sides in the width direction to cure the adhesive.

The decorative panel 1 is manufactured through the above steps.
According to the manufacturing method as described above, by forming the convex portions 3 and 5 of the molding dies 2 and 4 into various shapes, various concave portions 25 are provided on at least one side in the thickness direction of the decorative panel 1. be able to. As a result, it is possible to effectively give a three-dimensional effect while reducing the thickness of the surface layer 20 as compared with the case where unevenness is provided on the surface by cutting or the like. Further, since the decorative sheet 24 and the fiber reinforced resin layer 23 that form the surface layer 20 and the panel core material 10 can be pressed and integrated with the upper and lower molding dies 2 and 4, the manufacturing efficiency can be improved. You can That is, the resin composition 22 forming the fiber reinforced resin layer 23 can function as an adhesive component that joins and integrates the surface layer 20 and the panel core material 10, and an adhesive may be separately applied and laminated. It is possible to improve the manufacturing efficiency as compared with other products.

In addition, as described above, when the resin composition 22 applied to the back surface side of the decorative sheet 24 is impregnated in the fiber sheet 21, the surface smoothness of the decorative sheet 24 can be improved. Note that, instead of such an aspect, the resin composition 22 is mixed with the fiber sheet 21 impregnated with the resin composition 22 in a state of being laminated on the decorative sheet 24, or in a state where the fiber sheet 21 is laminated on the decorative sheet 24. It may be applied to the sheet 21. Further, the prepreg-shaped fiber sheet 21 containing the resin composition 22 may be laminated on the decorative sheet 24.
Further, the order of the steps of the panel manufacturing method according to the present embodiment described above is merely an example, and the steps may be performed in a different order, and various modifications are possible.

In addition, in the above-mentioned example, the upper and lower molding dies 2 and 4 that are relatively moved up and down are used to form the intermediate molded body (the fiber sheets 21, 21 and the resin composition 22 on both sides of the panel core 10 in the panel thickness direction). , 22 are respectively interposed and the decorative sheets 24, 24 are arranged to be clamped, but the invention is not limited to such a mode. For example, the upper and lower molding dies 2 and 4 are roller-shaped with convex portions 3 and 5 extending in the circumferential direction, and both or one of the intermediate molded body and the upper and lower molding dies 2 and 4 are in the panel longitudinal direction. It is also possible to adopt a mode in which the intermediate molded body is clamped by the upper and lower molding dies 2 and 4 while being moved to. Further, instead of the mode in which the compression parts 17 of the core material 16 of the panel core material 10 are compressed together with the surface layers 20, 20 by the upper and lower molds 2, 4, the panel core material in which the compression parts 17 are formed in the core material 16 is formed. The surface layers 20, 20 may be laminated and integrated on both sides of the panel 10 in the panel thickness direction. In this case, the panel core material 10 and the surface layers 20 and 20 may be laminated and integrated by the resin composition 22 that constitutes the fiber reinforced resin layer 23, or may be laminated and integrated by an appropriate adhesive. May be.

With the above-described configuration, the decorative panel 1 according to the present embodiment can improve the stereoscopic effect while making the surface layers 20, 20 thinner.
That is, the fiber-reinforced resin layer 23 and the decorative layer (decorative sheet) 24 are provided on at least one side in the panel thickness direction of the panel core layer (panel core material) 10 having the core material 16 that can be compressed and deformed. The surface layer 20 is provided. Therefore, the weight can be reduced as compared with a solid panel such as solid wood or a laminated plate. In addition, since the surface layer 20 is configured to have the fiber reinforced resin layer 23 and the decorative sheet 24, it is thinner than a conventional surface material using a wood board such as MDF (medium density fiber board) as a base material. It is possible to improve the surface hardness while aiming to increase the hardness.
In addition, a part (compressed portion) 17 of the panel core material 10 is compressed and a concave portion 25 is provided at least on one side in the panel thickness direction. Therefore, the concave portion 25 can be formed including the panel core material 10 and the thickness of the surface layer 20 can be increased as compared with a case where a surface decorative plate is provided with an uneven shape to give a three-dimensional effect. It is possible to improve the three-dimensional effect without any.

In addition, in the present embodiment, the compression portion 17 of the panel core material 10 is compressed in the panel thickness direction and the concave portion 25 is provided. Therefore, the recessed portion 25 recessed in the panel thickness direction is provided, and a three-dimensional effect can be effectively imparted.
Further, in the present embodiment, the thickness t2 of the compressed portion of the panel core material 10 is set to 3/5 or less of the thickness t1 of the non-compressed portion. Therefore, the depth of the recessed portion 25 recessed in the panel thickness direction becomes relatively large, and the three-dimensional effect can be more effectively imparted.

Further, in the present embodiment, the panel core material 10 has a configuration in which the core material 16 is housed in the space surrounded by the frame body 11 including the four peripheral frames 12, 13, 13, and 14. Therefore, the strength of the decorative panel 1 can be improved as compared with the case where the panel core material 10 is provided with only the core material 16 or crosspieces on three or less sides, and is suitably used as a fitting or the like. You can Further, at least one side in the panel thickness direction of the frame body 11 is provided with the concave portions 12a, 14a, 15a so as to form a concave portion continuously provided in the concave portion 25. Therefore, while the strength of the decorative panel 1 can be improved, the concave portions 25 can be provided up to the side edges of the four edges of the decorative panel 1, or the concave portions 25 can be provided over a wide range. For example, it is also possible to provide the concave portion 25 extending over the whole of one or both of the panel height direction and the panel width direction.

Further, in this embodiment, the surface layers 20, 20 are provided on both sides of the panel core material 10 in the panel thickness direction. Therefore, both surface sides in the panel thickness direction can be made to be decorative surfaces, and the surface hardness can be improved while making the surface layers 20, 20 on both sides in the panel thickness direction thin.
Further, in the present embodiment, the decorative panel 1 is provided with the concave portions 25 on both sides in the thickness direction. Therefore, it is possible to effectively give a stereoscopic effect to both sides of the decorative panel 1 in the thickness direction.
In addition, in the present embodiment, the concave portions 25, 25, which are open on both sides in the thickness direction of the one end portion in the panel width direction and which are elongated and serve as a handle portion in the panel height direction, are provided. .. Therefore, the number of members can be reduced as compared with a case where a pull member or the like which is a separate member is provided, and since the decorative sheets 24, 24 are provided in a series, a clean feeling with a sense of unity can be obtained. It will have the same appearance.

Next, an example of a decorative panel according to another embodiment of the present invention will be described with reference to the drawings.
FIG. 5: is a figure which shows typically an example of the decorative panel which concerns on 2nd Embodiment.
The differences from the first embodiment will be mainly described, and the same configurations will be denoted by the same reference numerals, and the description thereof will be omitted or briefly described.

Similarly to the above, the decorative panel 1A according to the present embodiment also has a substantially rectangular flat plate shape that is elongated in one direction. Further, in the present embodiment, as shown in FIGS. 5A and 5B, a plurality of recessed groove-shaped recessed portions 25A extending over the entire length in the panel longitudinal direction are provided at intervals in the panel width direction ( In the illustrated example, two lines are provided. Further, similarly to the above, the concave portions 25A, 25A, 25A, 25A are provided on both sides in the panel thickness direction so as to overlap with each other when viewed in the panel thickness direction. Further, in the present embodiment, the depth dimension of these concave portions 25A, 25A, 25A, 25A with respect to the thickness dimension of the decorative panel 1A is smaller than that in the first embodiment. That is, the ratio of the compressed portion thickness dimension t2A of the compressed portion 17A to the uncompressed portion thickness dimension t1A of the panel core material 10A is made larger than the above. The illustrated example shows an example in which the compressed portion thickness dimension t2A is set to about 3/5 of the non-compressed portion thickness dimension t1A.

Further, the groove width dimension of each recess 25A along the panel width direction is set to be larger than that in the first embodiment. Further, the inner surfaces on both sides of each recess 25A in the groove width direction are formed into a tapered surface shape that widens toward the outer side in the panel thickness direction.
Further, as shown in FIG. 5C, the panel core material 10A is configured to have the frame body 11A and the core material 16 in the same manner as described above. Further, the frame body 11A is configured to have an upper horizontal frame 12A, a lower horizontal frame 14A, left and right vertical frames 13, 13 and a plurality of horizontal rails 15A, in the same manner as described above. Further, the upper and lower horizontal frames 12A and 14A and the horizontal rails 15A are provided with recesses 12Aa, 14Aa and 15Aa corresponding to the recessed portions 25A on both sides in the panel thickness direction.
Also in the decorative panel 1A according to the present embodiment having such a configuration, substantially the same effect as the above is achieved. Further, the decorative panel 1A according to the present embodiment can also be manufactured in substantially the same manner as the panel manufacturing method described above.

Next, an example of a decorative panel according to still another embodiment of the present invention will be described with reference to the drawings.
FIG. 6 is a diagram schematically showing an example of a decorative panel according to the third embodiment.
Note that differences from the above-described embodiments will be mainly described, and similar configurations will be denoted by the same reference numerals, and description thereof will be omitted or briefly described.

The decorative panel 1B according to the present embodiment also has a substantially rectangular flat plate shape that is elongated in one direction, as in the above embodiments. Also, in this embodiment, as in the second embodiment, as shown in FIGS. 6A and 6B, the groove-shaped recess 25B extending over the entire length in the panel longitudinal direction is formed in the panel. A plurality of (two in the illustrated example) are provided at intervals in the width direction. Further, similarly to the above, the concave portions 25B, 25B, 25B, 25B are provided on both sides in the panel thickness direction so as to be positioned so as to overlap each other when viewed in the panel thickness direction. The ratio of the thickness t2A of the compressed portion 17B to the thickness t1A of the non-compressed portion of the panel core material 10B is substantially the same as that in the second embodiment. That is, an example is shown in which the compressed portion thickness dimension t2A is set to about 3/5 of the non-compressed portion thickness dimension t1A.

Further, the groove width dimension of each concave portion 25B along the panel width direction is made larger than that in the second embodiment. In addition, the inner surface of each concave portion 25B has a relatively gentle concave curved surface shape. Further, in the illustrated example, an example is shown in which the concave portions 25B, 25B adjacent to each other in the panel width direction are provided so as to be close to each other, and the boundary portion thereof is formed into a relatively gently convex curved surface.
Further, as shown in FIG. 6(c), the panel core material 10B is configured to have the frame body 11B and the core material 16 as in the above, and the frame body 11B includes the upper horizontal frame 12B, the lower horizontal frame 14B, The left and right vertical frames 13, 13 and a plurality of horizontal rails 15B are provided. Further, the upper and lower horizontal frames 12B and 14B and the horizontal rails 15B are provided on both sides in the panel thickness direction with concave portions 12Ba, 14Ba and 15Ba corresponding to the concave portions 25B.
The decorative panel 1B according to the present embodiment having such a configuration also has substantially the same effects as described above. The decorative panel 1B according to the present embodiment can also be manufactured in substantially the same manner as the above panel manufacturing method.

In addition, in each of the above-described embodiments, an example is shown in which the concave groove portions 25, 25A, 25B are provided over the entire length of the decorative panels 1, 1A, 1B, but they may be provided at intermediate portions in the longitudinal direction. Alternatively, they may be provided so as to extend in the width direction or may be provided so as to be scattered. Further, although an example is shown in which the concave portions 25, 25A, 25B on both sides in the panel thickness direction are provided at positions where they overlap each other when viewed in the panel thickness direction, a mode in which they are provided at different positions, etc. May be Further, as the concave portions 25, 25A, 25B provided on at least one side in the thickness direction of the decorative panels 1, 1A, 1B, the groove width dimension and the groove depth dimension are uniform in the entire groove longitudinal direction. It is not limited to the groove shape. For example, the groove-shaped concave portions 25, 25A, 25B may be provided in the middle of the groove in the longitudinal direction, with the portions having different groove widths and groove depths. Further, the concave portions 25, 25A, 25B are not limited to the concave groove shape, and may have a floating uneven shape or other various solid (three-dimensional) shapes.

Next, an example of a decorative panel according to still another embodiment of the present invention will be described with reference to the drawings.
FIG. 7A is a diagram schematically showing an example of a decorative panel according to the fourth embodiment.
Note that differences from the above-described embodiments will be mainly described, and similar configurations will be denoted by the same reference numerals, and description thereof will be omitted or briefly described.

In the decorative panel 1C according to the present embodiment, a part of the decorative panel 1C itself has a curved shape (when viewed in the direction along the longitudinal direction) in plan view, and has a concave shape on one side in the thickness direction on one side in the width direction. The portion 25C is provided, and the concave portion 25C is provided on the other side in the thickness direction on the other side in the width direction. Further, the concave portions 25C and 25C are provided so as to open outward in the panel width direction and are provided over the entire length. In addition, flat panel portions that are substantially parallel to each other are provided at both end portions in the width direction of the decorative panel 1C so that the flat plate portions at both end portions in the width direction have different positions in the thickness direction. The central portion in the direction is curved. Further, on both surfaces in the thickness direction of the decorative panel 1C, convex curved surface portions and concave curved surface portions are smoothly provided in a continuous pattern between flat surface portions facing outward in the thickness direction at both widthwise end portions. It is configured. Further, in the illustrated example, the decorative panel 1C is shown to be in a point symmetric (two-fold symmetry) shape in a plan view.

Also in the present embodiment, similarly to the above, the configuration is such that the core material 16 (see FIG. 1 and the like) is housed in the frame body 11C of the panel core material 10C, and the surface layers 20 and 20 are provided on both sides in the panel thickness direction. It is configured to be provided. Further, the upper and lower horizontal frames 12C and 14C of the frame body 11C and the respective horizontal crosspieces 15C are planarly viewed so as to have a shape corresponding to the shape of the decorative panel 1C when viewed in plan, and both end portions in the longitudinal direction are viewed. It has a substantially linear shape along the panel width direction, and the central portion in the longitudinal direction is curved.
Further, although not shown, the core material 16 is a compression portion as a part of the surface side portion which is the bottom side of each of the recessed portions 25C, 25C and is compressed substantially in the panel width direction. That is, in the present embodiment, a part of the core material 16 is compressed in the panel width direction rather than in the panel thickness direction. Further, in this case, the surface side portion of the compression portion of the core material 16 on the other side in the panel thickness direction is in an expanded state. In this case, a part of the core material 16 may be split on the expansion side.

Also in the decorative panel 1C according to the present embodiment having such a configuration, substantially the same effects as described above are exhibited. The decorative panel 1C according to the present embodiment can also be manufactured in substantially the same manner as the panel manufacturing method described above. Further, in the present embodiment, the core material 16 may be formed into the above-described shape when it is housed in the core material 16 instead of being compressed by the upper and lower molds.
In addition, in this embodiment, the convex curved surface-shaped portion and the concave curved surface-shaped portion are smoothly provided on both sides in the thickness direction of the decorative panel 1C between the flat surface-shaped portions facing both ends in the width direction in the thickness direction. An example in which the configuration is provided in a series is shown, but the present invention is not limited to such an aspect. For example, the decorative panel 1C may have a mode in which corners are formed such that the decorative panel 1C is bent in a plan view, and in addition, various curved and bent shapes can be adopted.

Next, an example of a decorative panel according to still another embodiment of the present invention will be described with reference to the drawings.
FIG.7(b) is a figure which shows typically an example of the decorative panel which concerns on 5th Embodiment.
Note that differences from the above-described embodiments will be mainly described, and similar configurations will be denoted by the same reference numerals, and description thereof will be omitted or briefly described.

In the decorative panel 1D according to the present embodiment, substantially the entire decorative panel 1D has a curved shape (when viewed in the direction along the longitudinal direction) in plan view, and one side in the thickness direction has a convex curved shape, The concave portion 25D having a concave curved shape is provided on the other side in the thickness direction. That is, in the present embodiment, the decorative panel 1D has a substantially arc shape when seen in a plan view.
Also in the present embodiment, similarly to the above, the configuration is such that the core material 16 (see FIG. 1 and the like) is housed in the frame 11D of the panel core material 10D, and the surface layers 20, 20 are provided on both sides in the panel thickness direction. It is configured to be provided. Further, the upper and lower horizontal frames 12D and 14D of the frame body 11D and the respective horizontal rails 15D are substantially arcuate in plan view so as to have a shape corresponding to the shape of the decorative panel 1D in plan view. Although illustration is omitted, the core material 16 is a compression portion as a part in which the bottom surface side portion of the concave portion 25D is substantially compressed in the panel width direction, similar to the fourth embodiment. The surface side portion of the compression portion on the other side in the panel thickness direction is configured to be expanded.

Also in the decorative panel 1D according to the present embodiment having such a configuration, substantially the same effects as described above are exhibited. Further, the decorative panel 1D according to the present embodiment can also be manufactured in substantially the same manner as the panel manufacturing method described above.
The different configurations of the decorative panels 1 and 1A to 1D according to the above-described embodiments may be appropriately rearranged or combined to be applied.

Further, in each of the above-described embodiments, the end portions 24a, 24a, 24a, 24a of the decorative sheets 24, 24 of the surface layers 20, 20 are inserted into the insertion grooves 13a, 13a provided in the vertical frames 13, 13 and stored. However, the present invention is not limited to such an aspect. For example, a separate sheet end portion storage member is embedded in the vertical frames 13 and 13, and the sheet end portion storage member holds the end portions 24a, 24a, 24a, 24a of the decorative sheets 24, 24. It may be an aspect or the like. Further, the surface layers 20, 20 may be provided so that the fiber-reinforced resin layers 23, 23 are located also on the surface layers 20, 20 on both end surfaces in the panel width direction. In addition, the surface layer 20 on one side in the panel thickness direction and the surface layer 20 on the other side in the panel thickness direction are abutted or overlapped at each end face in the panel width direction, and the surface layer 20 on one side in the panel thickness direction. It is also possible to adopt a mode in which the end face in the panel width direction is covered only with the above. Further, in place of the aspect in which the surface layers 20 and 20 are separately provided on both sides in the panel thickness direction, the surface layers 20 on both sides in the panel thickness direction are constituted by a series of surface layers 20. But it's okay. In addition, each end face in the panel width direction may be covered with a separate edge sheet or the like, and further, the panel core materials 10, 10A to 10D are exposed without making each end face in the panel width direction a decorative surface. It is also possible to adopt a modified mode.

In each of the above embodiments, the decorative layer of the surface layer 20 is an example of the decorative sheet 24, but the present invention is not limited to such an aspect and may be a coating layer or the like.
In each of the above embodiments, an example in which the core material 16 is housed in the space surrounded by the frame bodies 11 and 11A to 11D is shown. However, the panel core materials 10 and 10A to 10D are It may be configured with only 16 or configured with crosspieces provided on three or less sides.
Further, in each of the above-described embodiments, an example in which the surface layers 20, 20 are provided on both sides of the panel core materials 10, 10A to 10D in the panel thickness direction is shown, but only one side in the panel thickness direction is shown. Alternatively, the surface layer 20 including the decorative layer 24 may be provided. In this case, the fiber reinforced resin layer 23 may be provided on the other side in the panel thickness direction, or another surface material may be provided, and further, the panel core materials 10, 10A to 10D are exposed. Good. Various modifications can be made to the specific configuration of the decorative panels 1, 1A to 1D according to the above-described embodiments.

1,1A to 1D Decorative panel 10,10A to 10D Panel core material (panel core layer)
11, 11A to 11D Frame body 12a, 12Aa, 12Ba Recessed portion 14a, 14Aa, 14Ba Recessed portion 15a, 15Aa, 15Ba Recessed portion 16 Core material 17, 17A, 17B Compressed portion (partial)
20 surface layer 21 fiber sheet 22 resin composition 23 fiber reinforced resin layer 24 decorative sheet (decorative layer)
25, 25A to 25D Concave part 2 Lower mold 3 Convex part 4 Upper mold 5 Convex part t1, t1A Non-compressed part thickness dimension t2, t2A Compressed part thickness dimension

Claims (4)

Each of the panel thickness direction both sides of the compression deformable and is having a core material panel core layer, a surface layer having a decorative layer is provided with fiber-reinforced resin layer,
Decorative panel, characterized in that the concave portion is provided in each of the compressed panels thickness direction both sides in a part the panel thickness direction of the panel core layer. In claim 1 ,
A decorative panel characterized in that the dimension of the compressed portion of the panel core layer along the panel thickness direction is 3/5 or less of the dimension of the uncompressed portion along the panel thickness direction. In claim 1 or 2 ,
The panel core layer is configured such that the core material is housed in a space surrounded by a frame body including a four-rim frame,
A decorative panel characterized in that a concave portion is provided on at least one side of the frame body in the panel thickness direction so as to form a concave portion continuously provided in the concave portion. On both sides in the panel thickness direction of the panel core material having a compressible and deformable core material, the fiber sheet and the uncured resin composition constituting the fiber reinforced resin layer are interposed respectively on both sides in the panel thickness direction. in a state where we arranged decorative sheet, so that a concave portion is formed in each of the panel thickness direction on both sides, a portion of the panel thickness direction of the panel core material by the convex portion provided on each of the upper and lower molds A panel manufacturing method characterized in that a decorative panel is manufactured by pressing the upper and lower molds so as to compress the decorative panel.

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