JP5687475B2 - Compressed wood product manufacturing method - Google Patents

Description

  The present invention relates to a method for manufacturing a compressed wood product in which wood is compression-molded into a predetermined three-dimensional shape.

  In recent years, natural wood has attracted attention. Since wood has various grain patterns, individual differences occur depending on the location of the raw wood, and the individual differences are the individuality of each product. In addition, scratches and changes in color caused by long-term use may also have a unique texture and may be familiar to the user. For these reasons, wood is attracting attention as a material that can produce unique and tasty products that are not found in products using synthetic resins and light metals, and its molding technology is also making rapid progress.

  Conventionally, as a technique for modifying wood and compressing and fixing wood, an aqueous solution or alcohol solution containing a polybasic acid and a polyhydric alcohol is impregnated into a wood plate, and the wood plate is heated and pressurized. A method for producing a modified wood for curing a thermosetting substance (for example, see Patent Document 1), or a method for impregnating a synthetic resin into a wood fixed by steam heating and pressing (for example, heating and pressing) (for example, , Patent Document 2), a wood veneer that is heated and pressed with a press, compressed to a thickness of 3/4 to 1/4 of the original thickness, impregnated with a non-hydrophilic polymerization-curing resin solution, and polymerized and cured Manufacturing method of decorative board (for example, refer to Patent Document 3), wood or wood material is impregnated with a chemical mainly composed of cyclic ester compound and initial condensate of formaldehyde resin, and then the chemical is treated with wood or wood In the material応硬 of the causes of the modified timber production method (e.g., see Patent Document 4) are disclosed.

  On the other hand, as a technique related to three-dimensional compression of wood, after softening the wood board by steam treatment, the wood board is placed in a mold having a cavity shaped along the sound board for musical instruments, and then press-molded into a sound board shape. A method for producing a soundboard for musical instruments in which a wood board is held in a high-temperature steam atmosphere and the shape is fixed is disclosed (for example, see Patent Document 5).

Japanese Patent Laid-Open No. 01-182002 Japanese Patent Laid-Open No. 04-135701 Japanese Patent No. 2997393 Japanese Patent No. 2810918 JP 2000-352971 A

  However, in the techniques described in Patent Documents 1 and 2, since the resin is impregnated and then heated and pressurized at a high temperature and a high pressure, cracks, dents, cracks, and the like may occur in the wood.

  Further, in the technique described in Patent Document 3, since the wood veneer is compressed and impregnated with a polymerized cured resin under reduced pressure, the pressure reducing operation is complicated, the process is long, and the mold There is a problem that it takes time to control the temperature.

  Furthermore, the technique described in Patent Document 4 is a technique in which a chemical impregnated in wood is cured by heat compression to improve the surface hardness, dimensional stability, and bending strength of the wood. Instead, the improvement of the strength of the wood is achieved by the curing of the drug impregnated in a large amount, and the texture of the wood may be impaired.

  Furthermore, although the technology described in Patent Document 5 can produce compressed wood having a three-dimensional shape, there is a problem that the process for compressing and fixing the wood is long and the production cost is high. ing.

  The present invention has been made in view of the above, and is a method for producing a compressed wood product that can be produced in a simple and short process with a compressed wood product that is thin but has high strength and does not impair the texture as a woody material. The purpose is to provide.

  In order to solve the above-described problems and achieve the object, a compressed wood product manufacturing method according to the present invention is a compressed wood product manufacturing method for manufacturing a compressed wood product having a three-dimensional shape including a curved surface by compressing wood. A blank material made of wood having a substantially bowl-like shape is heated and compressed together with a thermosetting resin monomer or oligomer by a pair of molds to form a compressed wood, and the thermosetting resin monomer or oligomer is After the heat compression step for impregnation, and after the heat compression step, while maintaining the compressed state of the compressed wood by the pair of molds, the temperature of the die is further increased to impregnate the compressed wood And a reaction step of polymerizing and / or cross-linking the functional resin.

  The compressed wood product manufacturing method according to the present invention is characterized in that, in the above invention, the compressed wood is compressed to a thickness of 0.3 to 0.5 of the blank material.

  Moreover, the manufacturing method of the compressed wood product which concerns on this invention is the application | coating process which apply | coats the monomer or oligomer of the said liquid thermosetting resin to the said metal mold | die or the said blank material before the said heat compression process in the said invention. It is characterized by including.

  Further, the method for producing a compressed wood product according to the present invention is the above invention, wherein, after the reaction step, the pair of molds are brought to room temperature with the compressed wood sandwiched between the pair of molds including a lower mold. A cooling step of cooling and allowing the compressed wood to cool is included.

  In the compressed wood product manufacturing method according to the present invention, in the above invention, the mold temperature in the heat compression step is 100 to 150 ° C, and the mold temperature in the reaction step is 160 to 190 ° C. And

  Moreover, the manufacturing method of the compressed wood product which concerns on this invention is the said invention. WHEREIN: While the said application | coating process apply | coats the monomer or oligomer of the said liquid thermosetting resin to the said metal mold | die or the said blank material, the said thermosetting The monomer or oligomer of the curable resin is introduced into the hole formed in the lower mold, and the cooling step is to cool the compressed wood and introduce the polymer into the hole and polymerize and / or cross-link the thermosetting resin. And the reinforcing member of the compressed wood is formed.

  The compressed wood product manufacturing method according to the present invention is characterized in that, in the above-mentioned invention, the wood has a moisture content equal to or higher than a fiber saturation point before the heat compression step.

  According to the present invention, the blank material is heat-compressed together with the monomer or oligomer of the thermosetting resin, and the heat-compression step of simultaneously compressing the blank material and impregnating the blank material with the monomer or oligomer is impregnated. By performing the polymerization step of polymerizing and crosslinking the monomer or oligomer continuously with a pair of molds, a compressed wooden product that is thin but has high strength and does not impair the texture as a wooden material can be easily and It becomes possible to manufacture in a short process.

FIG. 1 is a flowchart showing an outline of a method for manufacturing a compressed wood product according to Embodiment 1 of the present invention. FIG. 2 is a diagram schematically showing an outline of a shaping process of the compressed wood product manufacturing method according to Embodiment 1 of the present invention. FIG. 3 is a diagram schematically showing an outline of a heating and compressing step of the compressed wood product manufacturing method according to Embodiment 1 of the present invention. 4 is a cross-sectional view taken along line AA in FIG. FIG. 5 is a diagram showing a state in which the heating and compressing step of the compressed wood product manufacturing method according to Embodiment 1 of the present invention has been completed. FIG. 6 is a perspective view showing a configuration of a compressed wood product manufactured by the compressed wood product manufacturing method according to Embodiment 1 of the present invention. FIG. 7 is a perspective view showing a configuration of an exterior body of a digital camera which is an application example of the compressed wood product manufactured by the compressed wood product manufacturing method according to Embodiment 1 of the present invention. FIG. 8 is a perspective view illustrating an external configuration of a digital camera that is packaged by the exterior body illustrated in FIG. 7. FIG. 9 is a perspective view showing a convex mold used in the method for manufacturing a compressed wood product according to Embodiment 2 of the present invention. FIG. 10 is a diagram schematically showing an outline of the heat compression step of the method for manufacturing a compressed wood product according to Embodiment 2 of the present invention. 11 is a cross-sectional view taken along line BB in FIG. FIG. 12 is a diagram showing a state in which the heating and compressing step of the compressed wooden product manufacturing method according to Embodiment 2 of the present invention has been completed. FIG. 13: is a perspective view which shows the structure of the compressed wood product manufactured with the manufacturing method of the compressed wood product which concerns on Embodiment 2 of this invention.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as “embodiments”) will be described with reference to the accompanying drawings. Note that the drawings referred to in the following description are schematic, and when the same object is shown in different drawings, dimensions, scales, and the like may be different.

(Embodiment 1)
FIG. 1 is a flowchart showing an outline of processing of a method for manufacturing a compressed wood product according to Embodiment 1 of the present invention. First, a blank material having a substantially bowl shape is formed from the raw wood (step S1: shaping process). FIG. 2 is a diagram schematically showing an outline of the shaping process. In the shaping process, a blank material 2 having a substantially bowl shape is shaped from a raw wood 1 such as a solid material by cutting or the like.

  The blank material 2 includes two side plates that extend in a curved manner with respect to the main plate portion 2a from a flat main plate portion 2a having a substantially rectangular surface and two long sides facing each other on the surface of the main plate portion 2a. Part 2b, and two side plate parts 2c extending from each of the two short sides facing each other on the surface of main plate part 2a so as to be curved with respect to main plate part 2a. The blank material 2 has a volume obtained by adding in advance a volume that is reduced by a heating and compressing step described later. 2 shows a case where the blank material 2 is shaped from the raw wood 1 in the tangential direction of the annual ring, but the blank material formed in the shaping process may be a mesh material or a mouthpiece material. Moreover, the shape of the blank material 2 is only an example. That is, the substantially bowl shape here includes not only bowl shapes but also shapes such as a dish shape and a box shape.

  Next, a monomer or oligomer of a thermosetting resin to be impregnated in the blank material 2 is applied to the inner wall surface of the blank material 2 (step S2: resin application step). As the thermosetting resin, phenol resin, epoxy resin, melamine resin, urea resin, unsaturated polyester resin, alkyd resin, polyurethane, thermosetting polyimide, silicon resin and the like are used, and epoxy resin is preferably used. Although the prepolymer of the thermosetting resin can also be used when the viscosity is low, it is preferable to use a monomer or an oligomer from the viewpoint of easy impregnation into the blank material 2. The monomer or oligolimer applied to the blank material 2 may be used alone or in a state dissolved in a solvent. Whether to use a monomer simple substance, an oligomer simple substance, or a solution in which a monomer or oligomer is dissolved in a solvent is selected in consideration of the polymerization reactivity of the resin to be used, the viscosity, and the amount of impregnation into the blank material 2 (hereinafter referred to as “impregnation”). , A monomer simple substance, an oligomer simple substance, or a solution in which the monomer or oligomer is dissolved in a solvent is referred to as “unreacted resin”). The solvent should just be a thing which can melt | dissolve the monomer single-piece | unit and oligomer single-piece | unit of the said thermosetting resin.

  After applying the unreacted resin of the thermosetting resin to the blank material 2, the blank material 2 is heated and compressed (step S3: heating compression process). FIG. 3 is a diagram schematically showing an outline of the heat compression process of the compressed wood product manufacturing process according to Embodiment 1 of the present invention. 4 is a cross-sectional view taken along line AA in FIG.

  In the heating and compression process of the first embodiment, the blank 2 made of wood having a substantially bowl shape is heated and compressed together with the unreacted resin 10 of the thermosetting resin by a pair of molds to form compressed wood, The blank material 2 is impregnated with the unreacted resin 10 applied to the blank material 2.

  The compression mold 100 used in the heating and compression step includes a pair of concave mold 101 and convex mold 102, and a control device 105 that controls the heating temperature and compression force of the concave mold 101 and convex mold 102. . Heaters 103 and 104 that generate heat are provided inside the concave mold 101 and the convex mold 102, respectively.

  The blank material 2 is compressed while being heated by the concave mold 101 and the convex mold 102 together with the unreacted resin 10 applied to the inner wall surface. The blank material 2 is deformed by this heat compression into a substantially bowl shape different from that before the heat compression step, and the unreacted resin 10 is impregnated into the uncompressed blank material 2. It is preferable to control the temperatures of the concave mold 101 and the convex mold 102 at the time of compression to 100 to 150 ° C, preferably 100 to 120 ° C. In the first embodiment, in order to shorten the process, the blank material 2 is heated and compressed without being softened in a water vapor atmosphere. If heat compression is performed at a high temperature without performing the softening step, there is a risk that cracks, cracks, etc. may occur on the surface of the blank 2. Therefore, in order to prevent the blank material 2 from being damaged by heat compression, it is preferable to heat-compress in the temperature range.

  Moreover, it is preferable to use what has the moisture content more than a fiber saturation point for the log 1 which forms the blank material 2. FIG. In the first embodiment, as described above, the blank material 2 is heated and compressed without performing the softening process. If the moisture content of the raw wood 1 is lower than the fiber saturation point, there is a risk that cracks, cracks, etc. may be derived on the surface of the blank 2 during heat compression. Therefore, in order to prevent breakage at the time of heat compression, it is preferable to form the blank material 2 using one raw wood having a moisture content equal to or higher than the fiber saturation point. In the first embodiment, the moisture content is an amount defined by {(weight before drying of wood−weight in the completely dry state) / weight in the completely dry state} × 100 (%). . Here, the completely dry state is a state in which the bound water contained in the cell walls of the wood and bound to the molecules constituting the wood has almost disappeared, and the moisture content in the completely dry state is almost 0%. The fiber saturation point is a moisture content in a state where only free water is present in the space between the cell lumen and the cell wall and only bound water is present in the moisture contained in the wood.

  The concave mold 101 for applying a compressive force from above the blank member 2 in the heating and compressing step includes a concave portion 111 having a smooth surface that comes into contact with the protruding outer surface of the blank member 2. When the curvature radius of the surface of the portion that curves from the main plate portion 2a to the side plate portion 2b and facing the concave mold 101 is RO, and the curvature radius of the surface of the concave portion 111 that contacts this surface is RA, The two curvature radii RO and RA satisfy the relationship RO ≧ RA.

  On the other hand, the convex mold 102 for applying a compressive force from the lower side of the blank material 2 during the heating and compressing step includes a convex portion 121 having a smooth surface that comes into contact with the recessed inner surface of the blank material 2. The surface of the portion that curves from the main plate portion 2a to the side plate portion 2b, the radius of curvature of the surface facing the convex mold 102 through the unreacted resin 10 is RI, and the convex portion 121 that contacts this surface is RI. If the curvature radius of the surface is RB (the curvature radius of the surface of the portion curved from the main plate portion 10a to the side plate portion 10b of the resin member 10 is also the same), the two curvature radii RI and RB satisfy the relationship RI ≧ RB.

  FIG. 5 is a diagram illustrating a state in which the heat compression process is completed by the concave mold 101 and the convex mold 102. In the state shown in FIG. 5, the blank material 2 can be deformed into a substantially bowl shape different from that before the heat compression step by receiving a compression force from the concave mold 101 and the convex mold 102. By this heat compression process, the thickness of the blank 2 is compressed to a thickness of about 30 to 50% before compression. In other words, the compression rate of the blank 2 in this compression step (the ratio ΔR / R of the thickness reduction ΔR of the blank 2 due to compression and the thickness R before compression of the blank 2) is 0. It is about 50 to 0.70. By setting the compression ratio of the blank material 2 to about 0.50 to 0.70, the thickness of the product can be reduced to facilitate processing, and the strength can be kept high.

  After the heating and compression process is finished, the blank material 2 is sandwiched between the concave mold 101 and the convex mold 102 and is held in a predetermined three-dimensional shape, and the concave mold 101 is further further than the above-described thermal compression process. Then, the temperature of the convex mold 102 is raised to polymerize and / or crosslink the unreacted resin 10 impregnated in the compressed blank 2 (step S4: reaction step).

  The unreacted resin 10 impregnated in the blank material 2 is accelerated in polymerization and / or crosslinking reaction by raising the mold temperature. The temperatures of the concave mold 101 and the convex mold 102 can be changed depending on the material used, but the reaction is performed at about 160 to 190 ° C., preferably 180 to 190 ° C. By increasing the reaction temperature, the polymerization and / or crosslinking reaction can be promoted and the curing time can be shortened. However, if the temperature is too high, the resin tends to undergo oxidative decomposition, and thus the above temperature range is preferable.

  After the reaction process, in a state where the blank material 2 is sandwiched between the concave mold 101 and the convex mold 102, the concave mold 101 and the convex mold 102 are cooled to room temperature to cool the blank material 2 (step S5: cooling). Process). By cooling the blank 2 in this cooling step, the resin polymerized and / or cross-linked in the reaction step is solidified. In the first embodiment, the compressed blank material 2 is impregnated with the unreacted resin 10, polymerized and / or crosslinked, and then the resin is solidified, so that the shape of the compressed blank material 2 is fixed by the resin. Therefore, a compressed wood product having excellent dimensional stability can be obtained without performing an immobilization process such as heating and pressurizing in a steam atmosphere or leaving it to be held in a mold.

  FIG. 6 is a perspective view showing a configuration of a compressed wooden product 3 manufactured by the compressed wooden product manufacturing method according to Embodiment 1 of the present invention. The compressed wood product 3 shown in the figure has a main plate portion 3a and side plate portions 3b, 3c corresponding to the main plate portion 2a and the side plate portions 2b, 2c of the blank material 2, respectively. Since the compressed wooden product 3 is impregnated with a thermosetting resin, gloss and higher durability due to the resin component can be obtained while maintaining the texture of the wooden product.

  FIG. 7 is a perspective view showing a configuration of an exterior body of a digital camera which is an application example of the compressed wood product 3 manufactured by the above-described compressed wood product manufacturing method. The exterior body 4 shown in the figure is an exterior body on the front side (the side facing the subject) of the digital camera, and the main plate portion 4a and the side plate corresponding to the main plate portion 3a and the side plate portions 3b and 3c of the compressed wood product 3, respectively. Parts 4b and 4c are provided. The main plate portion 4a includes a cylindrical opening 41 that exposes the imaging unit of the digital camera, and a rectangular parallelepiped opening 42 that exposes the flash of the digital camera. The side plate portion 4b has a semi-cylindrical cutout 43 that exposes the shutter button.

  FIG. 8 is a perspective view showing an external configuration of a digital camera whose front side is externally covered by the exterior body 4. A digital camera 301 shown in FIG. 1 includes an imaging unit 302, a flash 303, and a shutter button 304. The front side of the digital camera 301 where the imaging unit 302 and the flash 303 are exposed is covered by the exterior body 4. On the other hand, the back side of the digital camera 301 is covered with an exterior body 5 that is formed in the same manner as the exterior body 4 using the compressed wood product 3. Thus, when the compressed wood product manufactured by the compressed wood product manufacturing method according to the first embodiment is applied as an exterior body of a digital camera, the wall thickness is about 1.0 to 1.6 mm. This is more preferable.

  According to the manufacturing method of the compressed wood product of Embodiment 1 of the present invention described above, the thickness of the compressed wood can be reduced to improve the workability and the strength can be kept high, and the texture as a woody material is impaired. There is an effect that it is possible to produce a compressed wooden product without any problems in a simple and short process.

  In the first embodiment, the unreacted resin 10 is applied to the inner wall surface of the blank member 2 in the resin application step, but may be applied to the outer wall surface of the blank member 2. Alternatively, the blank material 2 is applied to the concave portion 111 of the concave mold 101 facing the blank material 2 or the convex portion 121 of the convex mold 102, and then the blank material 2 is heated and compressed by the concave mold 101 and the convex mold 102, thereby The blank 2 may be impregnated with the unreacted resin 10 while the material 2 is compressed.

(Embodiment 2)
In the method for manufacturing a compressed wood product according to Embodiment 2 of the present invention, a hole for forming a boss or the like that is a resin reinforcing portion of the compressed wood product is formed in a convex die that is a lower die of a die for heating and compressing a blank material. The resin reinforced portion is formed inside the compressed wood product by providing and pouring unreacted resin into the hole and curing by reaction.

  FIG. 9 is a perspective view showing a convex mold 102c used in the method for manufacturing a compressed wood product according to Embodiment 2 of the present invention. FIG. 10 is a diagram schematically showing an outline of the heat compression step of the method for manufacturing a compressed wood product according to Embodiment 2 of the present invention. 11 is a cross-sectional view taken along line BB in FIG. FIG. 12 is a diagram showing a state in which the impregnation of the resin into the blank material 2 is almost completed in the heat compression step of the method for manufacturing a compressed wood product according to Embodiment 2 of the present invention.

  In the compressed wood product manufacturing method according to the second embodiment of the present invention, as in the first embodiment, first, a blank material 2 having a substantially bowl shape is formed from a raw wood. Thereafter, the unreacted resin 10 is applied to the convex mold 102c, and the unreacted resin 10 is poured into the hole formed in the convex portion 121 of the convex mold 102c.

  As shown in FIG. 9, holes 130, 131, 132, 133, and 134 for forming a resin reinforcing part are formed in the main plate part 121 a of the convex part 121 of the convex mold 102 c. The unreacted resin 10 is poured into the holes 130, 131, 132, 133, and 134, respectively.

  After applying the unreacted resin 10 to the convex portion 121 of the convex mold 102c, as shown in FIG. 10, the blank material 2 is heated and compressed by the compression mold 100C together with the unreacted resin 10 to form a compressed wood, The blank material 2 is impregnated with the unreacted resin 10 applied to the convex portions 121. The conditions for heat compression are the same as in the first embodiment.

  After the heat compression is completed, the temperature of the concave mold 101 and the convex mold 102c is further increased while the blank 2 is held in a predetermined three-dimensional shape by the concave mold 101 and the convex mold 102c. Then, the unreacted resin 10 impregnated in the blank 2 and the unreacted resin 10 in the holes 130, 131, 132, 133, 134 are polymerized and / or crosslinked.

  After reacting the unreacted resin 10, the blank material 2 is cooled by cooling the concave mold 101 and the convex mold 102c to room temperature in a state where the blank material 2 is sandwiched between the concave mold 101 and the convex mold 102c. The shape is fixed by cooling, and the reinforcing member is formed by curing the thermosetting resin in the holes 130, 131, 132, 133, and 134.

  FIG. 13: is a perspective view which shows the structure of the compressed wooden product 7 manufactured with the manufacturing method of the compressed wooden product which concerns on Embodiment 2 of this invention. The compressed wood product 7 has a main plate portion 7a and side plate portions 7b, 7c corresponding to the main plate portion 2a and the side plate portions 2b, 2c of the blank material 2, respectively. Bosses 72, 73, 74 and ribs 75, 76 are formed on the inner surface of the main plate portion 7a as part of the reinforcing member.

  In the method for manufacturing a compressed wood product according to the second embodiment, an extra process is performed by providing a hole for forming a boss or the like as a reinforcing member of the compressed wood product in the convex mold of the mold for heating and compressing the blank material. Therefore, the reinforcing member can be easily and reliably attached and fixed to the compressed wood. Further, according to the second embodiment, similarly to the first embodiment, a compressed wooden product that has good workability and has high strength, and that does not impair the texture as a wooden material, can be simply and It can be manufactured in a short process.

  The compressed wood product produced by the method for producing a compressed wood product according to the present invention is useful as an exterior body for electronic equipment, and can be particularly suitably used as an exterior body for a digital camera. Moreover, the compressed wood product manufactured by the compressed wood product manufacturing method according to the present invention can be applied to tableware, various cases, building materials, and the like.

DESCRIPTION OF SYMBOLS 1 Log 2 Blank material 2a, 3a, 7a Main plate part 2b, 2c, 3b, 3c, 7b, 7c Side plate part 3, 7 Compressed wood product 10 Resin member 72, 73, 74 Boss 75, 76 Rib 100, 100C Compression mold 101 Concave mold 102, 102c Convex mold 103, 104 Heater 105 Control device 111 Concave part 121 Convex part 130, 131, 132, 133, 134 Hole G Grain

Claims (7)

A compressed wood product manufacturing method for manufacturing a compressed wood product having a three-dimensional shape including a curved surface by compressing wood,
A blank material made of wood having a substantially bowl shape is heated and compressed together with a thermosetting resin monomer or oligomer by a pair of molds to form a compressed wood, and heating to impregnate the thermosetting resin monomer or oligomer A compression process;
After the heat compression step, while maintaining the compressed state of the compressed wood by the pair of molds, the temperature of the mold is further increased to polymerize and / or thermoset resin impregnated in the compressed wood. A cross-linking reaction step;
A method for producing a compressed wood product, comprising:   The said compressed wood is compressed to 0.3-0.5 of the thickness of the said blank material, The manufacturing method of the compressed wood product of Claim 1 characterized by the above-mentioned.   The compressed wood product according to claim 1 or 2, further comprising an application step of applying a liquid monomer or oligomer of the thermosetting resin to the mold or the blank material before the heat compression step. Manufacturing method.   After the reaction step, the method includes a cooling step of cooling the pair of molds to room temperature by allowing the compressed wood to be sandwiched between the pair of molds including a lower mold and allowing the compressed wood to cool. The manufacturing method of the compressed wood product as described in any one of Claims 1-3. The mold temperature in the heating and compression step is 100 to 150 ° C,
The mold temperature of the said reaction process is 160-190 degreeC, The manufacturing method of the compressed wood product as described in any one of Claims 1-4 characterized by the above-mentioned. In the coating step, the liquid monomer or oligomer of the thermosetting resin is applied to the mold or the blank material, and the monomer or oligomer of the thermosetting resin is introduced into the hole formed in the lower mold. And
In the cooling step, the compressed wood is allowed to cool, and the thermosetting resin introduced into the hole and polymerized and / or cross-linked is cooled and solidified to form a reinforcing member for the compressed wood. A method for producing a compressed wood product according to claim 4 or 5.   The said wood is in the state which has the moisture content more than a fiber saturation point before the said heat compression process, The manufacturing method of the compressed wood product as described in any one of Claims 1-6 characterized by the above-mentioned.

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