JP2007015154A - Surface layer material and building material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a surface layer material which can efficiently cut out the goodness of designability presenting the feeling of nature of a solid material from natural lumber, can effectively use an end material, the remainder of the cut solid material, being discarded conventionally, and can demonstrate an effect equivalent to the goodness of designability presenting the feeling of nature of the original solid material and a building material using the surface layer material. <P>SOLUTION: The surface layer material has a first thin solid board 2 of natural lumber arranged in the longitudinal direction and a second thin solid board 3 which is made of the same kind of tree as the first thin solid board 2 and in which the collected pieces of a plurality of thin solid boards are collected in the longitudinal direction of the first thin solid board 2, and the first thin solid board 2 is adhered to the second thin solid board 3. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a surface layer material effectively using natural wood and a building material using the same.

  Conventionally, as construction wood, solid parts as shown in FIG. 9 (a), laminated wood as shown in FIG. 9 (b), and base materials as shown in FIG. Thick veneer material in which a thick veneer (grinding plate) 51 of about 3 mm or less is laminated on 50, and a thin protrusion plate 52 of about 0.25 mm to 1 mm is bonded to a plywood 53 as shown in FIG. As shown in FIG. 9 (e), a laminated sheet plywood, which is laminated by bonding a printing sheet 54 to a plywood 53, and the like, is used.

  On the other hand, as a low-cost warp-free, low-cost composite plate that can be used for interior panels around water, using low-quality hardwood chips with low utility value, a single plate is bonded to both sides of the compression composite. Has been proposed (see, for example, Patent Document 1).

JP 09-207272 A

  However, in the above-mentioned conventional example, the solid wood cut out from natural wood as shown in FIG. 9 (a) has natural design and good design, and even if the surface is damaged, it can be repaired by shaving. However, since it is difficult to align the grain, it is impossible to produce a large amount because the grain is difficult to arrange, and the cost is high because it is expensive. In addition, there is a problem that cracking is likely to occur due to drying, and it is not suitable for flooring for floor heating.

  In addition, a laminated material assembled by bonding end materials cut out from natural wood as shown in FIG. 9B can be repaired by shaving even if the surface is damaged, so that the original design can be maintained. Since the seam is exposed on the surface of the object, the design is inferior in that respect, and there is a design limitation that a seamless wide design cannot be achieved. In addition, it is difficult to match the colors of the laminated lumber, and there is a problem that the cost is not as high as that of solid wood.

  In addition, the thick single plate material as shown in FIG. 9 (c) is excellent in design that exhibits a natural feeling comparable to that of a solid material, and does not easily warp. However, since the material structure is a single material, it is cracked by drying. In addition, there is a problem that the thickness of the single plate (grind plate) 51 is increased by the thickness.

  In addition, the thin-ply veneer plywood as shown in FIG. 9 (d) is relatively mass-produced and is excellent in design in that it has a uniform grain, the design is wide in application range, and cracks due to drying are unlikely to occur. Although it is suitable for a flooring or the like, there is a problem that the protruding plate 52 is very thin and is easily damaged unless a protective coating is applied to the surface, and if the surface is damaged, the back plywood 53 is easily exposed, resulting in poor design.

  In addition, the sheet pasting material as shown in FIG. 9 (e) is inferior in design in that the color pattern is stable and the cost is low but there is no natural feeling. In many cases, the printed sheet 54 is not produced, and there is a problem that the entire sheet is forced to be replaced.

  In addition, the double-bonded plate material of Patent Document 1 is likely to crack due to drying depending on the material structure as in the case of the thick single plate material as shown in FIG. 9C, and the cost increases by the thick single plates on both surfaces. There is a problem.

  The present invention solves the above-mentioned problems, and the object of the present invention is to efficiently cut out the good design of natural solid wood from natural wood and discard the remaining solid wood cut out in the past. It is possible to provide a surface layer material and a building material using the surface material that can exhibit the same effect as a good design that exhibits the natural feeling of the original solid wood. When the surface of the board or the finished floor is viewed, it cannot be distinguished from the board shown in FIG. 9A in terms of design and performance (strength, hardness, digging, etc.) and FIG. It is intended to provide a surface material that is better in design and performance than the plate shown in a) and a building material using the same.

  The first configuration of the surface layer material according to the present invention for achieving the above object comprises a first thin solid plate material comprising one sheet in the longitudinal direction and the same tree species as the first thin solid plate material, A second thin solid plate in which a plurality of thin solid plates are assembled in the longitudinal direction of the one thin solid plate, and the first thin solid plate is bonded to the second thin solid plate. Features.

  Here, the same tree species uses tree species having substantially the same woody performance such as color and hardness. For example, timber with the same name cut from the same production area can be applied.

  The second configuration of the surface layer material according to the present invention is characterized in that, in the first configuration, the first thin solid plate material includes a plurality of thin solid plate materials assembled in a short direction.

  Further, a third configuration of the surface layer material according to the present invention is that, in the first and second configurations, the second thin solid plate material includes a plurality of layers, and each layer includes a plurality of thin solid plate materials. It is characterized by being made.

  Further, the fourth configuration of the surface layer material according to the present invention is that, in the third configuration, each layer of the second thin solid plate material is formed by aggregating a plurality of thin solid plate materials at different densities. Features.

  Further, the fifth configuration of the surface layer material according to the present invention is the assembly density of the uppermost thin solid plate material bonded to the first thin solid plate material of the second thin solid plate material in the fourth configuration. Is characterized by being lower than the density of the lower solid thin plate material.

  According to a sixth configuration of the surface layer material of the present invention, in the first to fifth configurations, the uppermost layer of the second thin solid plate material bonded to the first thin solid plate material is the first layer. It consists of the same color as 1 thin solid board | plate material, or an approximate color.

  Further, according to a seventh configuration of the surface layer material according to the present invention, in the first to sixth configurations, the grain direction of the first thin solid plate material and the first thin plate of the second thin solid plate material are used. It is characterized by being arranged in the same direction as the grain direction of the uppermost thin solid plate material bonded to the solid plate material.

  Further, an eighth configuration of the surface layer material according to the present invention is the lower layer than the uppermost layer bonded to the first thin solid plate material of the second thin solid plate material in the third to seventh configurations. Is characterized by a mixture of light and dark colors.

  Further, according to a ninth configuration of the surface layer material according to the present invention, in the first to eighth configurations, the layer thickness of the first thin solid plate material is 0.6 mm or more and 2 mm or less, Each layer thickness of the thin solid plate material 2 is 0.6 mm or more and 5 mm or less, respectively.

  Moreover, the 1st structure of the building material which concerns on this invention has adhere | attached the said 2nd thin solid board | plate material of the surface material of the structure in any one of the said 1st-9th on the foundation | substrate base material. .

  Here, as the base substrate, plywood, particle board, hard board (hard fiber board), MDF (Medium Density Fiber board), insulation boat (soft fiber board), or synthetic resin can be applied. .

MDF is made by steaming and defibrating wood chips to a fiber level, applying a synthetic resin adhesive to wood fibers formed by air flow, and then forming a processed density by hot compression 0.35 g / cm ³ ~ 0.8g / cm ³ wood material, which removes defects such as knots, cracks, and decay of wood, has a uniform structure, has no grain, and has little warpage and width / length deviation. The cost is low because it is excellent in properties and is suitable for finishing of curved surfaces and engraving.

  Particleboard, on the other hand, is made by crushing wood into small pieces and hot-pressing with an adhesive. It has the same properties as MDF, but has excellent heat insulation and sound insulation properties. Applicable. Originally, MDF and particleboard are manufactured instead of wood using waste materials such as lumber and plywood, and are cheaper than wood and superior in workability. It is often used for building materials.

  Moreover, the 2nd structure of the building material which concerns on this invention is a surface layer of any one of Claims 1-9 in the longitudinal direction and / or the transversal direction of the said base material in the said 1st structure. A plurality of materials are arranged and bonded together.

  According to the 1st structure of the surface layer material which concerns on this invention, by gathering using the remaining edge material after extract | collecting the 1st thin solid board | plate material which consists of 1 sheet | seat in a longitudinal direction from a natural log, it assembles | assembles. A second thin solid plate was manufactured, and the first thin solid plate was laminated with a second thin solid plate in which a plurality of thin solid plate members were assembled in the longitudinal direction to form a surface layer material. As a result, it is possible to increase the overall thickness of the surface layer material made of natural solid plate material, so that the degree of freedom of design processing such as grooving increases in addition to the good design that exhibits a natural feeling, groove processing, etc. Since the groundwork is not exposed, the design is excellent. In addition, an impregnation type finish of oil or the like is possible, and a surface layer material that exhibits a natural design without impairing the wood texture can be easily obtained.

  In addition, by producing the second thin solid board material by effectively using the end material from the natural log, the surface layer material can be efficiently produced without waste from the limited natural log, to protect the natural environment. Can also contribute to cost reduction.

  In this case, since the first thin solid plate material is bonded to the second thin solid plate material in which a plurality of thin solid plate materials are assembled in the longitudinal direction, the direction of the grain can be changed to the vertical and horizontal directions. Can control the expansion and contraction in the vertical and horizontal directions, and can be made into a surface layer material that hardly warps and does not crack even when dried. Even if the grain direction is the same direction, the second layer, which is the second thin solid plate material, is subdivided more than the first layer, which is the first thin solid plate material, Expansion and contraction can be suppressed as compared with the case of only a single layer, and it can be constructed to be strong against warping and cracking.

  Moreover, according to the 2nd structure of the surface layer material which concerns on this invention, the 1st thin solid board | plate material can obtain a wide building material by having comprised the several thin solid board | plate material in the transversal direction. Yes, you can also give a wide design.

  Moreover, according to the 3rd structure of the surface layer material which concerns on this invention, it consists of a solid board | plate material which has a natural grain by making the 2nd thin solid board | plate material into the layer which laminated | stacked the several thin solid board | plate material. Since the overall thickness of the surface layer material can be further increased, in addition to the good design that exhibits a natural feeling, the degree of freedom in design processing such as groove processing is further increased, and even in deep groove processing, etc. Since it is not exposed, the design is further improved. In addition, an impregnation type finish of oil or the like is possible, and a surface layer material that exhibits a natural design without impairing the wood texture can be easily obtained.

  In addition, by making effective use of the end material coming from natural logs, the second thin solid plate material with multiple layers can be used to efficiently produce surface layer materials from limited natural logs without waste. End material with a large difference between the grain and color of the first thin solid board material can be arranged in the lower layer to achieve both effective use of the end material and good design, thereby protecting the natural environment This also contributes to further cost reduction.

  In addition, since the second thin solid plate material has a structure in which a plurality of thin solid plate materials are assembled into a plurality of layers, and the first thin solid plate material is bonded onto the second thin solid plate material, the second thin solid plate material is used. Of the second layer, which is a plate material, the grain direction of one layer is easy to be different from the grain direction of the first layer, which is the first thin solid plate material. However, it is possible to make the surface layer material more difficult to crack.

  Moreover, according to the 4th structure of the surface layer material which concerns on this invention, since each layer of the 2nd thin solid board | plate material assembled | stacked the density | concentration of the several thin solid board | plate material in different density, a smaller edge material and 1st It is possible to make effective use of the end material that has a large difference between the grain and color of the thin solid board material, and to make the surface layer material more difficult to warp by further controlling the expansion and contraction in the vertical and horizontal directions, and even harder to crack. I can do it.

  Further, according to the fifth configuration of the surface layer material according to the present invention, the assembly density of the uppermost thin solid plate material bonded to the first thin solid plate material of the second thin solid plate material is lower than that. Because it is smaller than the density density of the thin solid board material, it is possible to effectively use the small edge material by arranging the smaller edge material and the first thin solid board material with large difference in grain and color in the lower layer. I can do it.

  Further, according to the sixth configuration of the surface layer material according to the present invention, the uppermost layer of the second thin solid plate material has the same color or an approximate color as the first thin solid plate material, so that the groove is formed even when the groove processing is performed. Since the surface layer material that is laminated without changing the color of the wall surface is not conspicuous, it is possible to maintain a design that exhibits a natural feeling.

  Further, according to the seventh configuration of the surface layer material according to the present invention, the first thin solid plate material and the uppermost thin solid material bonded to the first thin solid plate material of the second thin solid plate material. By arranging the grain direction of the plate material in the same direction, the grain of the first and second thin solid plate material is aligned, so that the grain of the groove wall surface should be laminated without changing even when grooved. Because it is inconspicuous, it can maintain a design that exhibits a natural feeling.

  Since the grain direction is the same even if the second layer, which is the second thin solid plate material, can be seen through from the first layer, which is the first thin solid plate material, it is difficult to understand whether the two are bonded or not. Since the first layer, which is the first thin solid plate material, can be made thin, and thus the second layer, which is the second thin solid plate material, can be made into a thick surface layer material, a thick surface layer material can be obtained efficiently, and the appearance is 1 Because it looks like a sheet, it has excellent design.

  Further, according to the eighth configuration of the surface layer material according to the present invention, the lower layer than the uppermost layer bonded to the first thin solid plate material of the second thin solid plate material is assembled with a mixture of light and dark colors. Thus, as in the sixth configuration, the uppermost layer of the second thin solid plate is made the same color or approximate color as the first thin solid plate, and the color of the groove wall surface is not changed even when the groove is processed. The surface layer material is not conspicuous and maintains a natural design, while the lower layer than the top layer can be used in combination with dark and light colors to effectively use the mill ends and protect the natural environment. This also contributes to reducing costs. Further, the size of each assembled piece of the thin solid plate material can be more effectively utilized by reducing the size of each assembled piece in the lower layer.

  Further, according to the ninth configuration of the surface layer material according to the present invention, the layer thickness of the first thin solid plate material is set to 0.6 mm or more and 2 mm or less, so that a natural feeling is exhibited from a natural log. More first thin solid plate material can be collected. In addition, by setting each layer thickness of the second thin solid plate material to 0.6 mm or more and 5 mm or less, the second thin solid plate material is extracted from the remaining end material after collecting the first thin solid plate material from natural logs. It is possible to collect a lot of thin solid board material, and to produce a surface layer material efficiently without waste from laminating natural logs by laminating them, innocent having natural grain by laminating Since the overall thickness of the surface material made of plate material can be increased, in addition to the good design that presents a natural feeling, the base is not seen through, increasing the freedom of design processing such as grooving. Also, since the groundwork is not exposed even by grooving or the like, the design is excellent. In addition, an impregnation type finish of oil or the like is possible, and a surface layer material that exhibits a natural design without impairing the wood texture can be easily obtained.

  Moreover, according to the 1st structure of the building material which concerns on this invention, the surface material which exhibits a natural feeling on a base material by adhere | attaching the 2nd thin solid board | plate material of the said surface material on a base material. It can be decorated, and the surface layer material has a structure in which the first and second thin solid plate materials are laminated so that the overall thickness of the surface layer material made of a solid plate material having a natural grain is thick and has a design characteristic that exhibits a natural feeling. In addition to goodness, even if the surface layer material is uncolored, pale, or bright, the base material is not seen through, so it is not easily affected by the color of the base material, and finishing is easy. The degree of freedom of design processing such as grooving is increased, and since the base substrate is not exposed even by grooving or the like, the design is excellent.

  Further, according to the second configuration of the building material according to the present invention, a plurality of the above-mentioned surface layer materials are arranged and bonded in the longitudinal direction and / or the short direction of the base substrate, so that the base material of a large area is naturally It is possible to decorate a large area surface material that gives a feeling.

  An embodiment of a surface layer material according to the present invention and a building material including the same will be described specifically with reference to the drawings. 1A and 1B are a perspective view and a cross-sectional view showing a configuration of a first embodiment of a building material to which a surface layer material according to the present invention is bonded, and FIG. 2 is a building material provided with the surface layer material according to the present invention. The exploded perspective view which shows the structure of 1st Embodiment of this, FIG. 3 (a), (b) is the perspective view and sectional drawing which show the structure of 2nd Embodiment of the building material which adhered the surface layer material which concerns on this invention, FIG. 4 is an exploded perspective view showing the configuration of the second embodiment of the building material provided with the surface material according to the present invention, and FIGS. 5A and 5B are the third of the building material to which the surface material according to the present invention is bonded. FIG. 6 is an exploded perspective view showing a configuration of a third embodiment of a building material provided with a surface layer material according to the present invention, and FIGS. 7A and 7B are books. FIG. 8 is a schematic diagram for comparing the state of grooving between the surface layer material according to the invention and the conventional surface layer material. FIG. 8 shows the first thin solid plate material and the second thin solid plate material from natural logs. Is a diagram illustrating an example of a site that collected.

  1 to 6, reference numeral 1 denotes a surface layer material, which is made of the same tree species as the first thin solid plate material 2 made of natural wood and made of one piece in the longitudinal direction, and is also made of natural wood. And a second thin solid plate member 3 in which a plurality of thin solid plate members are assembled in the longitudinal direction of the first thin solid plate member 2, and the first thin solid plate member 3 has a first thin plate on the second thin solid plate member 3. The solid plate material 2 is bonded to form a single unit.

  Here, the same tree species uses tree species having substantially the same woody performance such as grain, color, and hardness. For example, timber with the same name cut from the same production area can be applied.

  The second thin solid plate 3 may be a single layer, but it is more preferable if it is composed of a plurality of layers. Each layer is formed by assembling pieces of a plurality of thin solid plate materials, and each layer of the second thin solid plate material 3 is formed by collecting a plurality of thin solid plate materials at different densities. For example, as shown in FIG. 6, the assembly density of each assembly piece of the uppermost thin solid plate 4 bonded to the first thin solid plate 2 of the second thin solid plate 3 is lower than that of the lower solid plate 3. It can comprise so that it may become smaller than the assembly density of each assembly piece of the thin solid board | plate material 5. FIG.

  Further, for example, as shown in FIGS. 2, 4 and 6, the thin solid plate 4 disposed on the uppermost layer of the second thin solid plate 3 bonded to the first thin solid plate 2 is the first solid plate 4 Select the end plate of the same color or approximate color as the thin solid plate 2 and select the thin solid plate 5 arranged in a lower layer than the thin solid plate 4 as a mixture of dark and light colors. Can be selected.

  Also, the grain direction of the first thin solid plate member 2 and the grain direction of the uppermost thin solid plate member 4 bonded to the first thin solid plate member 2 of the second thin solid plate member 3 are arranged in the same direction. I can do it.

  The layer thickness of the first thin solid plate material 2 is preferably 0.6 mm or more and 2 mm or less, more preferably 1 mm or more and 2 mm or less. The thickness of each layer of the second thin solid plate 3 is preferably 0.6 mm or more and 5 mm or less. In addition, it is advantageous in terms of cost if the layer thickness of the second thin solid plate material 3 is larger than the layer thickness of the first thin solid plate material 2.

  Further, as shown in FIGS. 5 and 6, the first thin solid plate material 2 may be formed by a plurality of thin solid plate materials assembled in the short direction (width direction).

  Reference numeral 7 denotes a building material, in which a thin solid plate material 5 which is the lowermost layer of the second thin solid plate material 3 of the surface layer material 1 is bonded to the base substrate 6. As the base substrate 6, plywood, particle board, hard board (hard fiber board), MDF (Medium Density Fiber board), insulation boat (soft fiber board), or synthetic resin can be applied. Moreover, as the building material 7, it can be applied to various building materials such as flooring such as flooring, counters, headboards, joinery frames, window frames, baseboards, waist walls, etc., other furniture, desks, tables, It is also possible to apply to various wood products such as art materials.

  The second thin solid plate material 3 shown in FIGS. 1 and 2 is an example in which the grain direction is arranged along the grain direction of the first thin solid plate material 2, and the second thin solid plate material 2 shown in FIGS. The thin solid board 3 is arranged in a direction (cross direction) where the grain direction of the uppermost thin solid board 4 intersects the grain direction of the first thin solid board 2 (cross direction), and the grain direction of the thin solid board 5 of the lower layer is It is an example arrange | positioned along the grain direction of the 1st thin solid board | plate material 2. FIG. Thus, by arranging the upper and lower layers of the second thin solid plate material 3 alternately in the cross direction, it is possible to improve the anti-stretching performance and the anti-cracking performance due to drying.

  5 and 6 show an example in which a plurality of the first thin solid plate materials 2 of the surface layer material 1 are arranged and bonded in the short direction (width direction) of the base substrate 6. A plurality of surface layer materials 1 shown in FIGS. 1 to 6 can be bonded in the vertical direction and / or the short direction (width direction).

  FIG. 7A shows a state of the groove wall surface when grooving is performed in the range from the first thin solid plate material 2 of the surface layer material 1 to the depth of the top thin solid plate material 4 of the second thin solid plate material 3. FIG. 7B shows a state of the groove wall surface when the groove is processed in the range from the protruding plate 52 to the plywood 53 of the conventional thin protruding plate material shown in FIG. 9D. FIG.

  As shown in FIG. 7 (b), the conventional thin-projection decorative plywood shown in FIG. 9 (d) is different in color from the veneer 52, and the plywood 53 without wood is exposed and the design of the groove wall surface is significantly lowered. However, as shown in FIG. 7A, in the case of the surface layer material 1 according to the present invention, the first thin solid plate material 2 and the thin solid plate material 4 of the uppermost layer of the second thin solid plate material 3 are shaded. Since it is possible to align the grain of natural wood with the same color or an approximate color, the groove wall surface can maintain a good design with a natural feeling.

  FIG. 8 is a view showing an example of a portion where the first thin solid plate material 2 and the second thin solid plate material 3 are collected from the natural log 8. The natural log 8 has a different grain direction depending on the part to be collected, and there are few parts from which a beautiful grain can be taken. Further, even in the same log 8, the hue varies depending on the part. Therefore, the portion a where the first thin solid plate material 2 having a uniform color, a fine grain and a single sheet in the longitudinal direction can be collected is rare.

  The remainder obtained by collecting the first thin solid plate material 2 becomes the portions b and c for collecting the end material that collects the second thin solid plate material 3. The second thin solid plate material 3 can be composed of a plurality of layers, and the thin solid plate material 5 in which the pieces collected from the end material portion c where the grain is not clean and the hue is not uniform and is chopped is second. The natural log 8 can be effectively used without waste by arranging it in the lower layer of the thin solid plate 3.

  According to the above configuration, the second thin solid plate material 3 is obtained by collecting the first thin solid plate material 2 that is one piece from the natural log 8 in the longitudinal direction and collecting the remaining end materials effectively. The surface material 1 is constructed by laminating the first thin solid plate material 2 and the second thin solid plate material 3 in which a plurality of thin solid plate materials are assembled in the longitudinal direction. Since the overall thickness of the surface layer material 1 made of natural solid plate material can be increased, the degree of freedom of design processing such as grooving is increased in addition to the good design that exhibits a natural feeling. Since the substrate 6 is not exposed, the design is excellent. In addition, an impregnation type finish such as oil is possible, and the surface layer material 1 exhibiting a natural design without impairing the wood texture can be easily obtained.

  Further, by producing the second thin solid plate material 3 by effectively using the end material from the natural log 8, the surface layer material 1 can be efficiently produced from the limited natural log 8 without waste. It also contributes to environmental protection and can reduce costs.

  In addition, since the first thin solid plate material 2 is bonded to the second thin solid plate material 3 in which a plurality of thin solid plate materials are assembled in the longitudinal direction, the grain direction can be set to the vertical and horizontal directions. In this case, it is possible to obtain a surface layer material 1 that is difficult to warp by controlling expansion and contraction in the vertical and horizontal directions, and is difficult to crack even when dried. Moreover, even if the grain direction is the same direction, the second layer, which is the second thin solid plate material 3, is subdivided more than the first layer, which is the first thin solid plate material 2. As for the thing, expansion and contraction can be suppressed as compared with the case of only a single layer, and it can be constructed to be strong against warping and cracking.

  Since the first thin solid plate material 2 is constituted by assembling a plurality of thin solid plate materials in the short direction, a wide building material 7 can be obtained, and a wide design can be applied.

  Further, when the second thin solid plate material 3 in which a plurality of laminated pieces is assembled is formed into a plurality of layers, the entire thickness of the surface material 1 made of a solid plate material having a natural grain can be further increased. Therefore, in addition to the good design that exhibits a natural feeling, the degree of freedom of design processing such as grooving is further increased, and the base material 6 is not exposed even in deep grooving, and thus the design is further excellent. In addition, an impregnation type finish such as oil is possible, and the surface layer material 1 exhibiting a natural design without impairing the wood texture can be easily obtained.

  In addition, the surface layer material 1 can be efficiently manufactured without waste from the limited natural log 8 by manufacturing the second thin solid plate material 3 having a plurality of layers by effectively using the end material from the natural log 8. It is possible to balance the effective use of the mill ends and the good design by arranging the lower mill ends and the end sections that have a large difference with the grain and color of the first thin solid plate 2 in the lower layer. This contributes to the protection of the natural environment and can further reduce costs.

  In addition, since the second thin solid plate material 3 in which a plurality of thin solid plate materials are assembled is formed into a plurality of layers, the first thin solid plate material 2 is bonded onto the second thin solid plate material 3. Since the grain direction of one layer of the second layer which is the second thin solid plate material 3 is easily different from the grain direction of the first layer which is the first thin solid plate material 2, the expansion and contraction in the vertical and horizontal directions is further controlled. Therefore, it is possible to obtain a surface layer material 1 that is more difficult to warp and is less likely to crack even when dried.

  Further, each layer of the second thin solid plate material 3 is assembled with a plurality of thin solid plate materials at different densities, so that there is a large difference between the smaller end material and the grain and color of the first thin solid plate material 2. The end material can be used effectively, and the surface layer material 1 can be made more difficult to warp by further controlling the expansion and contraction in the vertical and horizontal directions, and further difficult to crack even when dried.

  In addition, the assembly density of each assembly piece of the uppermost thin solid plate material 4 bonded to the first thin solid plate material 2 of the second thin solid plate material 3 is equal to each assembly of the lower solid thin plate material 5. Since it is smaller than the aggregate density of the pieces, it is possible to effectively use a small edge material by arranging a smaller edge material or an edge material having a large difference in grain and color of the first thin solid plate material 2 in the lower layer.

  In addition, the thin solid plate 4 that is the uppermost layer of the second thin solid plate 3 has the same color or approximate color as the first thin solid plate 2, so that the color of the groove wall surface does not change even when the groove is processed. Since the surface layer material 1 is not conspicuous, it is possible to maintain a design that exhibits a natural feeling.

  Further, the grain direction of the first thin solid plate member 2 and the grain direction of the uppermost thin solid plate member 4 bonded to the first thin solid plate member 2 of the second thin solid plate member 3 are arranged in the same direction. Since the grain directions of the first and second thin solid plate materials 2 and 3 are aligned, the surface layer material 1 that is laminated without changing the grain direction of the groove wall surface even when grooves are processed is not noticeable. The design property which exhibits can be maintained.

  Even if the first layer, which is the first thin solid plate material 2, can be seen through the second layer, which is the second thin solid plate material 3, the grain direction is the same, so it is difficult to determine whether the two are bonded or not. Therefore, the first layer, which is the first thin solid plate material 2, can be made thin, and therefore the second layer, which is the second thin solid plate material 3, can be made into a thick surface layer material. In terms of appearance, it looks like a single plate and is excellent in design.

  Further, the thin solid plate 5 which is a lower layer than the thin solid plate 4 which is the uppermost layer bonded to the first thin solid plate 2 of the second thin solid plate 3 is assembled in a mixture of light and dark colors. In this case, the thin solid plate 4 that is the uppermost layer of the second thin solid plate 3 is laminated with the same color as the first thin solid plate 2 or an approximate color even when the groove wall is processed. Since the surface layer material 1 is not conspicuous, the thin solid plate material 5 which is a lower layer than the thin solid plate material 4 which is the uppermost layer is assembled in a mixture of light and dark colors while maintaining a natural design. This makes it possible to effectively use mill ends, contributes to the protection of the natural environment, and reduces costs. Further, the size of each assembled piece of the thin solid plate material can be more effectively utilized by reducing the size of each assembled piece in the lower layer.

  Further, when the layer thickness of the first thin solid plate material 2 is set to 0.6 mm or more and 2 mm or less, a larger amount of the first thin solid plate material 2 exhibiting a natural feeling is collected from the natural log 8. I can do it. In addition, when the thickness of each layer of the second thin solid plate 3 is set to 0.6 mm or more and 5 mm or less, the remaining end after the first thin solid plate 2 is collected from the natural log 8. The second thin solid plate material 3 can be collected more from the material, and the surface material 1 can be efficiently and efficiently produced from the limited natural log 8 by laminating them. The overall thickness of the surface layer material 1 made of a solid plate material having a natural grain can be increased by the above, in addition to the good design that exhibits a natural feeling, the base substrate 6 is not seen through, The degree of freedom of design processing such as grooving is increased, and since the base substrate 6 is not exposed even by grooving or the like, the design is excellent. In addition, an impregnation type finish such as oil is possible, and the surface layer material 1 exhibiting a natural design without impairing the wood texture can be easily obtained.

  Further, by adhering the second thin solid plate material 3 of the surface layer material 1 onto the base substrate 6, the surface layer material 1 exhibiting a natural feeling can be decorated on the base substrate 6, and the surface layer material 1 is 1. The thickness of the entire surface layer 1 made of a solid plate having a natural grain due to the structure in which the second thin solid plates 2 and 3 are laminated, and in addition to the good design that gives a natural feeling, Even if the material 1 is uncolored, pale, or bright, the underlying substrate 6 is not seen through, so it is not easily affected by the color of the underlying substrate 6 and is easy to finish and has a groove processing. The degree of freedom of design processing such as the above is increased, and since the base substrate 6 is not exposed even by groove processing or the like, the design is excellent.

  In addition, by arranging a plurality of the surface layer materials 1 in the longitudinal direction and / or the short direction of the base substrate 6 and bonding them, it is possible to decorate the large area surface material 1 that gives a natural feeling to the large area base substrate 6. I can do it.

  As an application example of the present invention, it is applied to various building materials such as a surface layer material effectively using natural wood and floor materials such as flooring, counters, headboards, joinery frames, window frames, baseboards, waist walls, etc. using the same. In addition, it can be widely applied to various wooden products such as furniture, desks, tables and art supplies.

(A), (b) is the perspective view and sectional drawing which show the structure of 1st Embodiment of the building material which adhere | attached the surface material which concerns on this invention. It is a disassembled perspective view which shows the structure of 1st Embodiment of the building material provided with the surface layer material which concerns on this invention. (A), (b) is the perspective view and sectional drawing which show the structure of 2nd Embodiment of the building material which adhere | attached the surface material which concerns on this invention. It is a disassembled perspective view which shows the structure of 2nd Embodiment of the building material provided with the surface layer material which concerns on this invention. (A), (b) is the perspective view and sectional drawing which show the structure of 3rd Embodiment of the building material which adhere | attached the surface material which concerns on this invention. It is a disassembled perspective view which shows the structure of 3rd Embodiment of the building material provided with the surface layer material which concerns on this invention. (A), (b) is a schematic diagram which compares the mode which carried out groove processing with the surface layer material which concerns on this invention, and the conventional surface layer material. It is a figure which shows an example of the site | part which extract | collects a 1st thin solid board | plate material and a 2nd thin solid board | plate material from a natural log. It is sectional drawing explaining a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Surface layer material 2 ... 1st thin solid board material 3 ... 2nd thin solid board material 4,5 ... Thin solid board material 6 ... Base material 7 ... Building material 8 ... Log

Claims (11)

A first thin solid plate made of one sheet in the longitudinal direction;
A second thin solid plate made of the same tree species as the first thin solid plate and in which a plurality of thin solid plates are assembled in the longitudinal direction of the first thin solid plate;
Have
A surface layer material, wherein the first thin solid plate material is bonded onto the second thin solid plate material. The surface layer material according to claim 1, wherein the first thin solid plate material includes a plurality of thin solid plate materials assembled in a short direction. The surface layer material according to claim 1 or 2, wherein the second thin solid plate material includes a plurality of layers, and each layer includes a plurality of thin solid plate materials. 4. The surface layer material according to claim 3, wherein each of the layers of the second thin solid plate material includes a plurality of thin solid plate materials assembled at different densities. The assembly density of the uppermost thin solid plate material bonded to the first thin solid plate material of the second thin solid plate material is lower than the assembly density of the lower solid thin plate material. The surface layer material according to claim 4. 6. The uppermost layer of the second thin solid plate material bonded to the first thin solid plate material has the same color as the first thin solid plate material or an approximate color. The surface layer material according to Item 1. The grain direction of the first thin solid plate material and the grain direction of the uppermost thin solid plate material bonded to the first thin solid plate material of the second thin solid plate material are arranged in the same direction. The surface layer material according to any one of claims 1 to 6, characterized in that The lower layer of the second thin solid plate material, which is bonded to the first thin solid plate material, has a lower layer than the uppermost layer, which is a mixture of light and dark colors. Surface layer material given in the paragraph. The layer thickness of the first thin solid plate is 0.6 mm or more and 2 mm or less, and the layer thickness of the second thin solid plate is 0.6 mm or more and 5 mm or less, respectively. The surface layer material according to any one of claims 1 to 8. A building material, wherein the second thin solid plate material of the surface layer material according to any one of claims 1 to 9 is bonded onto a base substrate. The building material according to claim 10, wherein a plurality of the surface layer materials according to any one of claims 1 to 9 are arranged and bonded in a longitudinal direction and / or a short direction of the base substrate.

Images