JP2016199003A - Stuck laminated material, method for producing stuck laminated material, furniture and interior material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a constituent member of furniture which has high strength by a carbon fiber, prevents a carbon fiber-reinforced resin such as an epoxy resin fixing the carbon fibers from being seen through from the outside of a woody surface material, has good appearance, and can be suitably used as at least a part of the furniture.SOLUTION: A constituent member 1 of furniture has a laminated integral structure having at least a core material 10 and a woody surface material 40, has a reinforcement layer 20 formed by impregnating and curing an epoxy resin 23 in carbon fiber sheets 21 and 21' between the core material 10 and the woody surface material 40, and has an impermeable penetration preventing sheet 30 between the reinforcement layer 20 and the woody surface material 40.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a laminated laminate material that can be suitably used for at least a part of furniture and interior materials, has high strength, and has a good appearance, a method for producing a laminated laminate material, furniture, and interior materials.

  Conventionally, wood-based materials have been used as furniture components that constitute chair backs, armrests, and the like. The wood-based furniture component is generally a laminated laminate obtained by applying an adhesive to at least a component material such as a core material and a wood-based surface material, laminating them, and pressing them with a mold. In order to obtain a smooth curve, it is often formed into a shape that is at least partially curved.

  Such a furniture component, for example, when used as a backrest of a chair, a force is applied to the back as the user leans against it. It is preferable to have a high strength capable of suppressing warping even if it is thin. Therefore, in Patent Document 1, a carbon fiber epoxy resin cured layer is provided between the core material and the wood-based surface material in order to impart strength to the furniture component having such a wood-based surface material. It is disclosed that a furniture component whose strength is increased by an epoxy resin cured layer is used as a part of a chair.

JP-A-63-85139

  By the way, the constituent material for furniture disclosed in Patent Document 1 is composed of a core material, an uncured carbon fiber epoxy resin layer, and a wooden surface material in this order, and then pressed with a mold and uncured carbon fiber epoxy resin. Manufactured by curing the layer. At the time of lamination, the epoxy resin adhesive is sufficiently applied to the carbon fiber epoxy resin uncured layer.

  Since the epoxy resin and epoxy resin adhesive before curing have low viscosity, the carbon fiber epoxy resin uncured layer easily deforms in the mold with other components before curing, and after curing it has high strength Can be added to furniture components. That is, since it has a low viscosity, an epoxy resin or an epoxy resin-based adhesive can penetrate between carbon fibers to facilitate bending, and after curing, the carbon fibers can be fixed to increase strength.

  However, when wood-based materials are used as the surface material, the low-viscosity epoxy resin or epoxy resin-based adhesive penetrates in this way, and the epoxy resin or epoxy resin-based adhesive can be seen from the outside of the wooden surface material. There is a problem of making the appearance of furniture components worse. Such a problem can occur in the same manner when a furniture component having a wooden surface material is used for furniture other than a chair. In addition, the laminated material as described above can be used not only as a component for furniture but also as an interior material such as a handrail, and when used as an interior material, the appearance is similarly deteriorated. A problem occurs.

  An object of the present invention is to solve the above-described problems. Specifically, a carbon fiber reinforced resin such as an epoxy resin that fixes carbon fibers to each other while having higher strength with carbon fibers is a wood-based material. Providing a laminated laminate, a method for producing a laminated laminate, a furniture and an interior material that can be suitably used as at least a part of furniture and interior materials without being seen from the outside of the surface material and having a good appearance The purpose is to do.

  In order to achieve this object, the present invention takes the following measures.

  That is, the bonded laminated material of the present invention has a laminated integrated structure having at least a core material and a wood surface material, and a carbon fiber sheet and a carbon fiber are interposed between the core material and the wood surface material. In addition to having a reinforced layer formed by impregnating and hardening a reinforced resin, an impermeable layer that prevents water penetration is provided between the reinforced layer and the wooden surface material.

  When such a structure is produced by laminating a carbon fiber sheet impregnated with an uncured carbon fiber reinforced resin at a position relatively close to the wood-based surface material and then curing the carbon fiber reinforced resin. Even so, the permeation preventive layer between the reinforcing layer and the wooden surface material blocks the low-viscosity carbon fiber reinforced resin before curing, and the carbon fiber reinforced resin penetrates into the wooden surface material. Since it can prevent, carbon fiber reinforced resin does not see through from the outside of a wooden surface material. Therefore, even if the finished laminated laminate is thin, it has a good appearance and has a high strength by the reinforcing layer, and realizes a laminated laminate that can be appropriately used as at least a part of furniture and interior materials. be able to.

  Further, in order to reliably block the carbon fiber reinforced resin before curing and to effectively prevent the laminated laminate from peeling off at the penetration preventing layer, the penetration preventing layer is provided on both surfaces of the water-impermeable resin sheet. It is preferable that the sheet is composed of a three-layer structure penetration preventing sheet having paper attached thereto.

  In particular, in order to obtain a laminated laminate having sufficient strength in various directions, the carbon fiber sheet is composed of a plurality of carbon fibers extending in the same direction, and the reinforcing layer includes the carbon fibers. It is preferable to have a configuration in which a plurality of carbon fiber sheets are laminated so that the extending directions cross each other.

  Moreover, in order to ensure the strength of the laminated laminate material in various directions with a single carbon fiber sheet, the carbon fiber sheet is constituted by a carbon fiber bundle in which a plurality of carbon fibers are bundled, It is preferable that the carbon fiber bundles are knitted while intersecting and overlapping each other.

  Furthermore, when used for a part of furniture or interior material, in order to exert sufficient strength both in the direction of bending the laminated laminate material and in the direction of warping, the reinforcing layer is It is preferable to have a structure formed on both sides of the core material.

  In addition, when a thin wooden surface material is used, the carbon fiber sheet and the carbon fiber reinforced resin are prevented from being seen through from the outside of the wooden surface material, and the carbon fiber sheet is exposed by chamfering. In order to suppress this, it is preferable to have a structure having a single plate between the wood-based surface material and the reinforcing layer.

  On the other hand, the method for producing a laminated laminate according to the present invention is a method for producing a laminated monolithic structure having at least a core material and a wood-based surface material, and is provided between the wood-based surface material and the core material. A laminate in which a carbon fiber sheet impregnated with an uncured carbon fiber reinforced resin is interposed, and a water-impermeable permeation prevention layer is interposed between the wood-based surface material and the carbon fiber sheet, It is characterized by being pressed while hardening the reinforced resin.

  Even if a carbon fiber sheet impregnated with an uncured carbon fiber reinforced resin is laminated at a position relatively close to the wood surface material, the carbon fiber sheet and the wood system The penetration preventing layer between the surface material blocks the uncured carbon fiber reinforced resin, and the carbon fiber reinforced resin can be prevented from penetrating into the wood-based surface material. Therefore, it is easy to use a laminated laminate that has a good appearance and has high strength due to the reinforcing layer in which the carbon fiber reinforced resin is impregnated and cured in the carbon fiber sheet, and can be appropriately used as at least a part of furniture and interior materials. It can be manufactured reliably.

  In this case, in order to enable appropriate bending, the laminated body is provided with the wooden surface material on both surfaces of the core material, and at least one of the wooden surface material and the core material, A carbon fiber sheet impregnated with an uncured carbon fiber reinforced resin is interposed between the at least one wood-based surface material and the carbon fiber sheet, the permeation prevention layer is interposed, It is preferable that the laminate is placed in a mold, and the carbon fiber reinforced resin is cured while pressing the laminate with the mold.

  Furthermore, the furniture according to the present invention is characterized in that the bonded laminated material is used at least in part. With such a configuration, it is possible to realize furniture that has a good appearance and sufficient strength.

  Moreover, the interior material of the present invention is characterized in that the above laminated laminate material is used at least in part. With such a configuration, it is possible to realize an interior material having a good appearance and sufficient strength.

  Since the present invention has the configuration described above, a carbon fiber sheet impregnated with an uncured carbon fiber reinforced resin is laminated at a position relatively close to the wood-based surface material, and then the carbon fiber reinforced resin is cured. Even if it is manufactured, the penetration preventing layer blocks the carbon fiber reinforced resin before curing, and the carbon fiber reinforced resin does not see through from the outside of the wooden surface material, so that the appearance is good, It is possible to provide a laminated laminate, a method for producing a laminated laminate, a furniture and an interior material that have high strength due to the reinforcing layer and can be appropriately used as at least a part of the furniture and the interior material.

The fragmentary sectional view which shows typically the structural component for furniture which concerns on one Embodiment of this invention. The perspective view which shows the chair to which the structural material for furniture was applied. The figure for demonstrating the manufacturing method of the structural material for furniture. The figure for demonstrating the manufacturing method of the structural material for furniture. The perspective view which shows the table to which the structural material for furniture was applied.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the furniture component 1 as a laminated laminate of the present embodiment has a laminated integrated structure having at least a core material 10 and a wood-based surface material 40, as shown in FIG. 2. For example, it is used for the backrests 102A and 102B of the chairs 100A and 100B.

  As shown in FIG. 1, the furniture component 1 is formed by laminating reinforcing layers 20, 20, permeation preventing sheets 30, 30 and wood-based surface materials (projections) 40, 40 in this order on both sides of a core material 10. To be formed. Since FIG. 1 is a schematic diagram, the thickness of each layer is omitted.

  The core material 10 is obtained by bonding a plurality of single plates 11 (three in this embodiment) to each other with a thermosetting adhesive such as a melamine resin adhesive. For example, beech material is used as the single plate. Note that an arbitrary number of single plates can be stacked.

  The reinforcing layer 20 is made of carbon fiber reinforced plastic (CFPR) 20 ′. The carbon fiber reinforced plastic 20 ′ is formed by penetrating and curing an epoxy resin as a carbon fiber reinforced resin on carbon fiber sheets 21 and 21 ′ made of a plurality of carbon fibers (CF) 22a. In this embodiment, an epoxy resin is used as the carbon fiber reinforced resin. However, the present invention is not limited to this, and a resin other than the epoxy resin may be used. The carbon fiber sheets 21 and 21 ′ are formed by arranging a plurality of carbon fiber bundles 22, which are bundles of carbon fibers 22 a, in the same direction, and the carbon fiber bundles 22 and 22 are knitted with a string-like binding member 24. The state is fixed. In the present embodiment, two carbon fiber sheets 21 and 21 ′ are overlapped with each other, the carbon fibers 22 a of one carbon fiber sheet 21 extend in the A1 direction, and the carbon fibers 22 a of the other carbon fiber sheet 21 ′ are , And are arranged so as to extend in the A2 direction substantially orthogonal to the A1 direction (crossing at 90 ° in the present embodiment). The carbon fiber 22a exhibits high strength in the direction in which it is pulled. Therefore, the carbon fiber sheet 21 has high strength against the tensile force in the A1 direction, and the carbon fiber sheet 21 ′ has high strength against the tensile force in the A2 direction.

  The epoxy resin is an epoxy resin adhesive composed of a main agent and a curing agent, and is cured when a predetermined time elapses after mixing them. Since the epoxy resin before curing has a low viscosity, the epoxy resin applied to the carbon fiber sheets 21 and 21 ′ immediately penetrates into the gap between the carbon fibers 22 a and 22 a when the furniture component 1 is manufactured. (High permeability) and workability is improved. When the epoxy resin is cured, the carbon fibers 22a and 22a are firmly fixed to each other to be a carbon fiber reinforced plastic 20 '.

  The permeation preventive sheet 30 as the permeation preventive layer is configured by sticking reinforcing paper 31 on both surfaces of a water-impermeable resin sheet 32. Such a permeation preventive sheet 30 blocks the low-viscosity epoxy resin before curing at the time of manufacturing the furniture component 1, thereby preventing the epoxy resin from reaching the wooden surface material 40. The permeation prevention sheet 30 and the wood-based surface material 40 are bonded to each other with a water-soluble adhesive such as a vinyl acetate-based adhesive. The vinyl acetate adhesive is hardened when moisture evaporates. As such a permeation prevention sheet 30, for example, those conventionally used for architectural purposes can be applied.

  As described above, the furniture component 1 can be used as an integrated structure of the seat surface 101 and the backrests 102A and 102B of the chairs 100A and 100B as shown in FIGS. 2 (a) and 2 (b), for example. It is. The furniture component 1 constitutes the backrests 102A and 102B by curving at a substantially right angle from the rear end portion of the substantially rectangular seat surface 101. The chairs 100A and 100B include backs 122a and 112a that constitute the upper portions of the backrests 102A and 102B, and back support rods 122b and 112b that are configured to have a small width (specifically, the lower portion) of the backrests 102A and 102B. In addition, in the chair 100B, a narrow back support rod 112b extends from the left and right end portions (positions displaced from the center) of the seat portion 101, and opens to a part of the backrest 102B (specifically, the back 112a). 112c is formed, and it is a shape that makes the user feel uneasy in strength at first glance. However, since the furniture component 1 has sufficient strength due to the reinforcing layer 20, as shown in FIG. 2, the width of a part of the backrests 102A and 102B (specifically, the back support rods 112b and 122b) is reduced. Even so, the bending strength is ensured. In addition, as shown in FIG. 5B, when the back support rod 112b extends from the left and right ends of the seat portion 101, when the back support rod 112b leans against the back 112a, the back support rod 112b has a twisting direction indicated by an arrow X. Although a force is applied, a sufficient torsional strength can be ensured even at a location where such a twist occurs. Therefore, the freedom degree of design of chair 100A, 100B can be raised.

  Next, the manufacturing method of the component material 1 for furniture is demonstrated using FIG.

  First, as shown in FIG. 3, a melamine resin-based adhesive 11 a is applied to the surface of a plurality of (three in the present embodiment) single plates 11 that will be the core material 10. Specifically, the single plate 11 arranged on the inner side among the plurality of single plates 11 serving as the core material 10 is passed between a pair of rollers R and R having a melamine resin adhesive 11a attached to the surface. Then, the melamine resin adhesive 11a is applied to both surfaces of the veneer 11 respectively. Further, two single plates 11, 11 arranged on the outer side among the plurality of single plates 11 to be the core material 10 are overlapped with each other with the outer surface 11b1 facing inward, and in that state, the melamine resin adhesive 11a passes between a pair of rollers R, R attached to the surface. Thus, the melamine resin adhesive 11a is applied to the inner surface 11b2 of the single plates 11 and 11 without being applied to the outer surface 11b1 of the single plates 11 and 11, respectively. The outer surface 11b1 of the two single plates 11, 11 is directed outward, and the single plate 11 with the melamine resin adhesive 11a applied on both sides is sandwiched between the single plates 11, 11, and the lower side The first mold 51 is placed, and the first mold 52 on the upper side is lowered and subjected to high-frequency heating while being pressed. Thereby, each single board 11 adhere | attaches and integrates, and it becomes the core material 10 shape | molded by the predetermined shape.

  Next, as shown in FIG. 4, the penetration preventing sheet 30 is adhered to the back surface of the wood-based surface material 40 with a vinyl acetate-based adhesive 33. Thereafter, an uncured epoxy resin 23 having a low viscosity immediately after mixing of the main agent and the curing agent is applied to the surface of the penetration preventing sheet 30 opposite to the wood-based surface material 40, and the carbon fiber sheet 21 (21 ' ) And squeezing with a roller (not shown) until the epoxy resin 23 penetrates the carbon fiber sheet 21 (21 ') and exudes from the surface. Further, an uncured epoxy resin 23 is applied to the carbon fiber sheet 21 (21 ′), and the carbon fiber sheet 21 ′ is arranged so that the extending directions of the carbon fiber sheet 21 (21 ′) and the carbon fibers 22a are substantially orthogonal to each other. Another sheet (21) is superposed and rubbed with a roller (not shown) until the epoxy resin 23 penetrates into the carbon fiber sheet 21 '(21) and exudes from the surface. Two reinforcing layer forming surface materials 40a prepared in this way are prepared and bonded to both surfaces of the core material 10 obtained as described above to obtain a laminate 1A. In addition, the procedure for applying the epoxy resin 23 is not limited to the above, and after the carbon fiber sheets 21 (21 ′) are stacked, the epoxy resin 23 that permeates them may be applied. The laminated body 1A is put in the lower second molding die 53, the upper second molding die 54 is lowered and pressed, and the epoxy resin 23 is cured and integrated. At this time, since the core material 10 is after being heated by the first molds 51 and 52, the residual heat remaining in the core material 10 accelerates the curing of the epoxy resin 23. In this way, the furniture component 1 is obtained.

  As described above, the furniture component 1 as the laminated laminate of the present embodiment has a laminated integrated structure including at least the core 10 and the wood surface material 40, and the core 10 and the wood surface. Between the reinforcing material 20 and the wood-based surface material 40, the carbon fiber sheets 21, 21 ′ have a reinforcing layer 20 formed by impregnating and curing an epoxy resin 23 as a carbon fiber reinforcing resin. It is configured to have a permeation prevention sheet 30 as an impermeable permeation prevention layer.

  With such a configuration, the carbon fiber sheets 21 and 21 'impregnated with the uncured epoxy resin 23 are laminated at a position relatively close to the wood-based surface material 40, and then the epoxy resin 23 is cured and manufactured. Even if it is done, the penetration preventing sheet 30 between the reinforcing layer 20 and the wood-based surface material 40 blocks the epoxy resin 23 before curing, and the epoxy resin 23 penetrates into the wood-based surface material 40. Since it can prevent, even if the colored epoxy resin 23 is used, the epoxy resin 23 does not see through from the outside of the wooden surface material 40. Therefore, even if the completed furniture component 1 is thin, it looks good and has high strength due to the reinforcing layer 20, and can be appropriately used as at least a part of furniture such as the chairs 100A and 100B. The furniture component 1 can be realized.

  Further, since the penetration preventing sheet 30 has a three-layer structure in which the reinforcing paper 31 is attached to both surfaces of the water-impermeable resin sheet 32, the strength of the penetration preventing sheet 30 in the direction of being pulled by the reinforcing paper 31 is increased. Can do. Further, when the carbon fiber sheets 21 and 21 ′ impregnated with the uncured epoxy resin 23 are superimposed on the permeation prevention sheet 30 as in the present embodiment, the reinforced paper 31 having higher water absorption than the resin sheet 32. Since the epoxy resin 23 before curing is absorbed, the penetration preventing sheet 30 can be adhered to the reinforcing layer 20 with sufficient strength through the epoxy resin 23. Therefore, the adhesive force of the permeation prevention sheet 30 in the furniture component 1 is higher than the case where the permeation prevention layer is composed of, for example, the resin sheet 32 alone. It is possible to effectively prevent the material 1 from peeling off.

  In particular, the carbon fiber sheets 21 and 21 ′ are configured by a plurality of carbon fibers 22 a extending in the same direction. In the reinforcing layer 20, the extending directions of the carbon fibers 22 a intersect each other, specifically, substantially perpendicular to each other. A sheet of carbon fiber sheets 21, 21 'is laminated. The carbon fiber 22a exhibits sufficient strength with respect to the pulling direction. Therefore, by using the reinforcing layer 20 in which the two carbon fiber sheets 21 and 21 ′ are laminated so that the extending directions of the carbon fibers 22a intersect each other, the strength is exhibited not only in one direction but also in each direction. It can be set as the component 1 for furniture. For example, when the furniture component 1 is used as the backrest 102B of the chair 100B as shown in FIG. 2 (b), a force in the twisting direction indicated by the arrow X is also applied to the back support rod 112b when leaning against the back 112a. By the carbon fiber sheet 21 (21 ′) in which the extending direction of the carbon fibers 22a is a substantially horizontal direction, a high strength can be exhibited even in the twist direction, and the carbon fibers 22a can be made difficult to break.

  In particular, since the reinforcing layers 20 are respectively formed on both surfaces of the core material 10, the warping of the furniture component 1 is effectively suppressed, the shapes of the chairs 100 </ b> A and 100 </ b> B are appropriately maintained, and the strength is further increased. be able to.

  For example, when the furniture component 1 is used for the seat portion 101 and the backrest 102A of the chair 100A as shown in FIG. 2A, when a force is applied to the back 122a backward, Since a force is applied to the carbon fibers 22a constituting the carbon fiber sheet 21 (21 ') of the reinforcing layer 20 located behind the core material 10 in the compression direction, even if sufficient strength is not exhibited, the carbon fiber 22a is more effective than the core material 10. In addition, since a force is applied to the carbon fibers 22a constituting the carbon fiber sheet 21 (21 ') of the reinforcing layer 20 at the front, sufficient strength is exhibited. Therefore, when a force is applied to the backrest 102 </ b> A backward, the warp of the backrest 102 </ b> A is suppressed by the reinforcing layer 20 provided in front of the core member 10. On the other hand, when a force is applied to the back 122a of the backrest 102A for some reason, the carbon fiber 22a constituting the carbon fiber sheet 21 (21 ') of the reinforcing layer 20 ahead of the core member 10 is compressed. Since force is applied in the direction, even if sufficient strength is not exhibited, force is applied to the carbon fibers 22a constituting the carbon fiber sheet 21 (21 ') of the reinforcing layer 20 located behind the core member 10 in the pulling direction. Therefore, sufficient strength is exhibited. Therefore, when a force is applied to the backrest 102 </ b> A forward, warping of the backrest 102 </ b> A is suppressed by the reinforcing layer 20 provided behind the core material 10. Therefore, even if a force is applied to the backrest 102A from either the front side or the rear side, warping of the backrest 102A can be effectively suppressed. In addition, since the effect of suppressing such warpage becomes more prominent as the space between the reinforcing layers 20 increases, the reinforcing layer 20 has a woody surface in order to increase the strength while thinning the furniture component 1. Preferably, it is positioned as close as possible to the material 40.

  On the other hand, the manufacturing method of the furniture component 1 of the present embodiment is a method of manufacturing a laminated integrated structure having at least the core material 10 and the wood surface material 40, and includes the wood surface material 40 and the core material 10. The carbon fiber sheet 21 (21 ′) impregnated with the uncured epoxy resin 23 is interposed between the wood-based surface material 40 and the carbon fiber sheet 21 (21 ′). The interposing laminated body 1A is pressed while the epoxy resin 23 is cured.

  Even if the carbon fiber sheet 21 (21 ′) impregnated with the uncured epoxy resin 23 is laminated at a position relatively close to the wood-based surface material 40, the carbon fiber sheet 21 (21 ′) is laminated. The penetration preventing sheet 30 between the fiber sheet 21 (21 ′) and the wood-based surface material 40 blocks the uncured epoxy resin 23, and the epoxy resin 23 can be prevented from penetrating into the wood-based surface material 40. Therefore, it has a good appearance and has high strength due to the reinforcing layer 20 in which the epoxy resin 23 is impregnated and cured in the carbon fiber sheet 21 (21 ′), and can be appropriately used as at least a part of furniture such as the chairs 100A and 100B. The furniture component 1 can be easily and reliably manufactured.

  In particular, in the manufacturing method of the furniture component 1 of the present embodiment, the laminate 1A is provided with the wooden surface materials 40, 40 on both surfaces of the core material 10, and both the wooden surface materials 40, 40 and the core material. 10, carbon fiber sheets 21, 21 ′ impregnated with an uncured epoxy resin 23 are interposed between the two wood-based surface materials 40, 40 and the carbon fiber sheets 21, 21 ′. The sheet 30 is interposed, the laminated body 1A is placed in the molding dies 53 and 54, and the epoxy resin 23 is cured while the laminated body 1A is pressed by the molding dies 53 and 54.

  With such a configuration, the laminated body 1A having the carbon fiber sheets 21 and 21 ′ impregnated with the uncured epoxy resin 23 is installed in the molding dies 53 and 54, and therefore the carbon fiber sheets 21 and 21 ′. Can be easily deformed according to the molds 53 and 54. By curing the epoxy resin 23 in this state, the carbon fiber sheets 21 and 21 ′ are bonded to the adjacent core material 10 and the permeation prevention sheet 30 with the epoxy resin 23, and the carbon fibers 22 a are fixed to each other for furniture. The strength of the component 1 can be increased. Further, before the epoxy resin 23 is cured, the permeation prevention sheet 30 between the reinforcing layer 20 and the wood surface material 40 blocks the epoxy resin 23 and prevents the epoxy resin 23 from permeating the wood surface material 40. it can. Therefore, it is possible to easily and surely manufacture the furniture component 1 that has a good appearance and can be appropriately used as at least a part of the furniture such as the chairs 100A and 100B while allowing an appropriate bending process.

  Furthermore, the chairs 100A and 100B, which are the furniture of the present embodiment, use the furniture component 1 for at least a part thereof, so that the appearance is good and the chairs 100A and 100B have sufficient strength. The degree of freedom of the shape can be increased.

  Although one embodiment of the present invention has been described above, the specific configuration of each part is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

  For example, in the present embodiment, the wood-based surface material 40, the permeation prevention sheet 30, the reinforcing layer 20, and the core material 10 are used. However, other plate-like members and sheet-like members may be interposed. Good. As such a configuration, for example, a wood-based surface material 40, a single plate, a permeation prevention sheet 30, a reinforcing layer 20 and a core material 10 in this order, a wood-based surface material 40, a permeation prevention sheet 30, Examples include a configuration in which a single plate (for example, beech material) is further interposed between the wood-based surface material 40 and the reinforcing layer 20, such as a configuration in which the single plate, the reinforcing layer 20 and the core material 10 are provided in this order. If a thin material (for example, a thickness of about 0.3 mm) made of walnut, oak, or the like is used as the wooden surface material 40, the carbon fiber sheets 21, 21 ', the epoxy resin 23, and the like are outside the wooden surface material 40. The carbon fiber sheets 21, 21 ′ and the like can be seen from the outside of the wood surface material 40 by interposing a single plate between the wood surface material 40 and the reinforcing layer 20. Can be prevented and the appearance can be improved. Further, when the reinforcing layer 20 is laminated at a position relatively close to the wood-based surface material 40, if the edges of the backrests 102A and 102B of the chairs 100A and 100B are chamfered, the carbon fiber sheet 21 (21 of the reinforcing layer 20) ′) Is easily exposed, but a carbon fiber sheet 21 (21 ′) is obtained by interposing a veneer between the wood-based surface material 40 and the reinforcing layer 20 and chamfering the veneer. Exposure can be suppressed.

  Moreover, in this embodiment, after producing the core material 10 using the molds 51 and 52, the core material 10 and the reinforcing layer forming surface material 40 a are integrated using the molds 53 and 54. However, all the constituent elements of the furniture component 1 may be simultaneously put into a molding die and molded in one step.

  Further, in the present embodiment, the reinforcing layer 20 is provided on both surfaces of the core material 10, respectively, but may be provided only on one surface. In this case, the penetration preventing sheet 30 may be provided only on the side where the reinforcing layer 20 is present. Alternatively, three or more reinforcing layers 20 may be provided in the furniture component 1 by providing the reinforcing layer 20 in the core material 10.

  Further, in this embodiment, two carbon fiber sheets 21 and 21 ′ are used for each reinforcing layer 20, but only one carbon fiber sheet 21 (21 ′) is used for each reinforcing layer 20. There may be three or more carbon fiber sheets 21, 21 ′ for each reinforcing layer 20. When each of the reinforcing layers 20 is provided with a plurality of carbon fiber sheets 21, 21 ′, the angle formed by the extending direction of the carbon fibers 22 a constituting each carbon fiber sheet 21, 21 ′ is not limited to 90 °, for example 60 It may be °.

  Further, in the present embodiment, as the carbon fiber sheet 21 (21 ′) included in the reinforcing layer 20, a carbon fiber bundle 22 that is a bundle of carbon fibers 22a is used in which a plurality of carbon fiber bundles 22 are arranged in the same direction. As shown in the lower right enlarged plan view, a carbon fiber sheet 21 </ b> A in which a plurality of carbon fiber bundles 22 cross each other and are woven while overlapping may be used. By using such a carbon fiber sheet 21A, a single carbon fiber sheet 21A can be used without using a plurality of carbon fiber sheets 21 and 21 ′ laminated so that the extending directions of the carbon fibers 22a intersect each other. The strength of the furniture component 1 can be ensured not only in one direction but also in each direction.

  Further, in this embodiment, the furniture component 1 is used for the seat surface 101 and the backrests 102A and 102B of the chairs 100A and 100B, but only for the seat portion 101 of the chairs 100A and 100B or only for the backrests 102A and 102B. The component 1 may be used, and may be used for the legs 103 of the chairs 100A and 100B (especially legs that open downwardly in the shape of a letter C) or the elbows (not shown) (particularly L-shaped elbows or round elbows).

  Further, the furniture component 1 may be applied to furniture other than the chairs 100A and 100B, for example, a table 110 as shown in FIG. The table 110 is manufactured by bending the both ends of a relatively thin piece of furniture component 1 at a substantially right angle, and includes a top plate 113 and legs 111 extending downward from the vicinity of its four corners. Prepare. The top plate 113 is formed with a plurality of openings 114 and 114. Thus, even if it is a shape that is composed of only the relatively thin furniture component 1 and further has an opening 114 formed in the top plate 113, it may seem that the strength is uneasy, the furniture component 1 Therefore, the table 110 having sufficient strength and a high degree of freedom in shape can be obtained.

  Further, in the present embodiment, the wood-based surface materials 40 and 40 are provided on both surfaces of the core material 10 respectively, but the wood-based surface material 40 may be provided only on one surface of the core material 10. In this case, another type of plate material such as a melamine decorative plate is provided on the other surface of the core material 10. The melamine-based decorative board is bonded to the core material 10 using, for example, a chloroprene rubber-based adhesive. Such a component for furniture is preferably used for a flat part of furniture, for example, a table top plate, etc. When used for a table top plate, the wooden surface material 40 is used as the back side of the table top, and the melamine is used. It is conceivable that the system decorative board is the front side of the top board. In addition, such a furniture component is produced by, for example, pressing the laminated body with a roller (not shown) without using the molds 53 and 54 as shown in FIG. In addition, even if it is a case where the wood-type surface materials 40 and 40 are provided in the both sides of the core material 10, you may produce by pressing with a roller and crimping | bonding in this way.

  Furthermore, you may utilize the bonding laminated material of this invention not only as the component 1 for furniture but as an interior material. When used as an interior material, the laminated laminate material constitutes at least a part of, for example, a handrail, a stair tread, a floor material, a built-in product such as a built-in storage, and a built-in counter. Therefore, such an interior material has a good appearance, has sufficient strength, and can increase the degree of freedom of shape.

  Furthermore, the bonded laminated material of the present invention may not be bent by the molds 51 to 54 or the like, and may have a flat shape.

  Other configurations can be variously modified without departing from the spirit of the present invention.

1 ... Furniture component (laminated laminate)
DESCRIPTION OF SYMBOLS 1A ... Laminated body 10 ... Core material 20 ... Reinforcement layer 21, 21 ', 21A ... Carbon fiber sheet 22 ... Carbon fiber bundle 22a ... Carbon fiber 23 ... Epoxy resin (carbon fiber reinforced resin)
30 ... Penetration prevention sheet (penetration prevention layer)
32 ... Resin sheet 31 ... Reinforced paper (paper)
40 ... Wooden surface material 53,54 ... Mold 100A, 100B ... Chair (furniture)
110 ... Table (furniture)

Claims (10)

  A laminated laminated material having at least a core material and a wood-based surface material, wherein the carbon fiber sheet is impregnated and cured with a carbon fiber reinforced resin between the core material and the wood-based surface material. A laminated laminate having an reinforced layer and an impermeable, permeation-preventing layer between the reinforced layer and the wood-based surface material.   The bonded laminate according to claim 1, wherein the permeation preventive layer is constituted by a permeation preventive sheet having a three-layer structure in which paper is attached to both surfaces of an impermeable resin sheet. The carbon fiber sheet is composed of a plurality of carbon fibers extending in the same direction,
The bonded laminate according to claim 1 or 2, wherein in the reinforcing layer, a plurality of carbon fiber sheets are laminated so that the extending directions of the carbon fibers intersect each other.   The bonded laminate according to claim 1 or 2, wherein the carbon fiber sheet is constituted by a carbon fiber bundle in which a plurality of carbon fibers are bundled, and the plurality of carbon fiber bundles are knitted while intersecting and overlapping each other.   The bonded laminated material according to any one of claims 1 to 4, wherein the reinforcing layer is formed on both surfaces of the core material.   The bonded laminated material according to any one of claims 1 to 5, further comprising a single plate between the wooden surface material and the reinforcing layer. A method for producing a laminated laminated material having a laminated integrated structure having at least a core material and a woody surface material,
A carbon fiber sheet impregnated with an uncured carbon fiber reinforced resin is interposed between the wooden surface material and the core material, and is impermeable to water between the wooden surface material and the carbon fiber sheet. A method for producing a laminated laminate, comprising: pressing a laminate having an infiltration prevention layer while curing the carbon fiber reinforced resin.   In the laminate, the wood surface material is provided on both surfaces of the core material, and at least one of the wood surface material and the core material is impregnated with an uncured carbon fiber reinforced resin. A fiber sheet is interposed, and a permeation preventing layer is interposed between at least one of the wood-based surface material and the carbon fiber sheet, and the laminate is placed in a molding die, and the lamination is performed with the molding die. The method for producing a laminated laminate according to claim 7, wherein the carbon fiber reinforced resin is cured while pressing the body.   A furniture characterized in that the laminated laminate according to any one of claims 1 to 6 is used at least in part. An interior material characterized in that the laminated laminate according to any one of claims 1 to 6 is used at least in part.

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