JP7078261B2 - Wood floorboards and their manufacturing methods and building floors - Google Patents

Description

The present invention relates to a wooden floor board, a method for manufacturing the same, and a floor for a building.

Some building floors have a so-called herringbone-like pattern, as disclosed in Patent Document 1, for example. That is, the grain of the surface layer is inclined with respect to the arrangement direction of the plurality of plate materials, and the plates having different inclination directions are adjacent to each other in the lateral direction (that is, the long sides are butted against each other). Arranged to form the floor for the building. As a result, the direction of the grain of the surface layer is reversed at the seam of the adjacent boards in the lateral direction (that is, the seam between the long sides), which is a pattern like a fish (herring) bone. A herringbone-like pattern appears on the design surface of the building floor.

Design Registration No. 15243050

However, the constituent floor plate body disclosed in Patent Document 1 has a rectangular shape. Therefore, a seam in the direction orthogonal to the longitudinal direction appears between the constituent floorboards adjacent to each other in the longitudinal direction. This seam is formed to divide the diagonal grain of the herringbone. As a result, the herringbone-like design may be impaired.

In addition, when forming the herringbone-like floor for a building as described above, it is desirable to use a wooden surface layer board such as a ground board having a certain thickness for the surface layer in order to give a texture and a sense of quality. Is done. On the other hand, it is not preferable to combine a large number of independent wood surface boards at a construction site or the like so that a herringbone-like pattern appears, because it takes time and effort.

Therefore, it is conceivable to prepare in advance a wood floor board in which a plurality of wood surface boards made of sawn boards or the like are diagonally bonded to a wood board that is large to some extent.
However, when the wood surface layer board is made of a board material, there is a concern about deformation such as warpage. That is, when the wood surface plate is attached to the wood substrate, it is considered that the stress of the warp of the wood surface plate affects the wood substrate. That is, the stress of warping of the wood surface board may cause the warping of the entire wood floor board.

In particular, as described above, when a plurality of wood surface layers are diagonally bonded to a wood substrate, there is a concern that the entire wood floor board may be warped in a diagonal direction with respect to the longitudinal direction and twisted and deformed. Will be done.

The present invention has been made in view of such a background, and an object of the present invention is to provide a wooden floor board having excellent design, a method for manufacturing the same, and a floor for a building, which can effectively suppress twisting deformation. Is.

One aspect of the present invention is a wood substrate and
A wood floor board having a plurality of wood surface boards arranged and joined in parallel on the upper surface of the wood substrate.
The wood substrate has a long shape when viewed from the upper surface, and has a pair of substrate long sides parallel to the longitudinal direction and a pair of substrate short sides inclined with respect to the pair of substrate long sides. And have
The wood surface plate has a pair of surface plates along the long side of the substrate and a pair of surface plates inclined with respect to the side of the surface plate and parallel to each other in the shape seen from the upper surface. It has a hypotenuse, and the fiber direction is along the hypotenuse of the surface plate.
The plurality of wood surface plates are arranged on the wood substrate so that the hypotenuses of the surface plates face each other and the side sides of the surface plates are connected in a straight line.
Moreover, the hypotenuse of one of the wood surface plates arranged at both ends in the arrangement direction is arranged along the short side of the substrate of the wood substrate.
The wood substrate is formed by laminating a plywood and a wood reinforcing plate having a fiber direction different from the fiber direction of the surface layer of the plywood.
The fiber direction of the wood surface layer plate is different from the fiber direction of the wood reinforcement plate and the fiber direction of the surface layer of the plywood in the wood floor board.

Another aspect of the present invention is a building floor formed by splicing a plurality of the wooden floorboards in the longitudinal direction and the lateral direction.
The wooden floor boards adjacent to each other in the lateral direction are on the floor for a building in which the inclination directions of the short sides of the floor boards with respect to the longitudinal direction are opposite to each other.

Yet another aspect of the present invention is a method for manufacturing the above-mentioned wooden floor board.
A plurality of the wood surface layer plates are attached to the upper surface of the rectangular rectangular board which is the wood board before the outer shape is processed, and both ends of the rectangular board in the longitudinal direction are cut to form a pair of short boards. It is in the method of manufacturing a wooden floor board that forms a side.

In the wooden floor board, the wooden board has a pair of long sides of the board and a pair of short sides of the board that are parallel to each other and inclined with respect to the long sides of the board. The hypotenuse of one of the wood surface plates arranged at both ends in the arrangement direction is arranged along the short side of the substrate. As a result, when a plurality of wooden floor boards are arranged side by side to form a building floor, the seams in the longitudinal direction (that is, the seams between the short sides) are also formed parallel to the hypotenuse of the surface board of the wood surface board. This makes it possible to prevent the herringbone-like pattern from being divided by the seams of the wooden floorboards. As a result, it is possible to obtain a floor for a building having an excellent design, in which a herringbone-like pattern appears continuously and naturally as a whole.

Further, the wood substrate is formed by laminating a plywood and a wood reinforcing plate having a fiber direction different from the fiber direction of the surface layer of the plywood. The fiber direction of the wood surface layer plate is different from the fiber direction of the wood reinforcing plate and the fiber direction of the surface layer of the plywood. As a result, it is possible to suppress the torsional deformation of the wood floor board due to the warping stress of the wood surface board.

Further, since the floor for a building is formed by joining a plurality of wooden floor boards, it is excellent in design. Further, since the twisting deformation of each wooden floor board can be suppressed, it is easy to obtain a floor for a building having excellent design. Further, the wooden floor boards adjacent to each other in the lateral direction of the wooden substrate have opposite inclination directions of the short side with respect to the long side. Along with this, the hypotenuse of the surface board and the tilt direction of the grain of the wood surface boards adjacent to each other in the lateral direction of the wood floor board are opposite to each other. As a result, a herringbone-like pattern appears on the upper surface of the building floor.

Further, in the above-mentioned method for manufacturing a wooden floor board, a wooden surface layer board is attached to the upper surface of a rectangular rectangular board which is a wooden board before the outer shape is processed. As a result, a rectangular substrate that is relatively easy to handle can be used until the step of attaching the wood surface layer plate. Therefore, the production efficiency can be improved and the accuracy of the pasting work can be improved. Then, after the pasting work, both ends of the rectangular substrate in the longitudinal direction are cut to form a pair of short sides of the substrate. As a result, it is possible to efficiently manufacture the above-mentioned wooden floor board having excellent designability, which can effectively suppress twisting deformation.

As described above, according to the above aspect, it is possible to provide a wooden floor board having excellent designability, a method for manufacturing the same, and a floor for a building, which can effectively suppress twisting deformation.

It is sectional drawing explanatory drawing of the wooden floor board in Embodiment 1, and is the sectional view seen by the arrow | line | line of FIG. The plan view of the wooden floor board in Embodiment 1. (A) It is an explanatory view corresponding to the arrow view of IIIa of FIG. 1, and is an explanatory view showing the fiber direction of the wood surface layer plate, and (b) is an explanatory view corresponding to the cross section of the line IIIb-IIIb of FIG. An explanatory view showing the fiber direction of the above, (c) is an explanatory view corresponding to the cross section taken along the line IIIc-IIIc of FIG. 1, and is an explanatory view showing the fiber direction of the surface layer of the plywood. The plan view of the wood surface layer board in Embodiment 1. FIG. 2 is a partially enlarged explanatory view corresponding to a cross section taken along the line VV of FIG. The plan view of the 1st wooden floor board in Embodiment 1. FIG. The plan view of the 2nd wooden floor board in Embodiment 1. FIG. FIG. 6 is an explanatory cross-sectional view taken along the line VIII-VIII of FIG. FIG. 6 is an explanatory cross-sectional view taken along the line IX-IX in FIG. The plan view of the floor for a building in Embodiment 1. FIG. The perspective explanatory view of the stage of making a wood substrate in Embodiment 1. FIG. The perspective explanatory view of the step of separating into three rectangular substrates in Embodiment 1. FIG. The perspective explanatory view of the stage of attaching the wood surface layer board to the rectangular substrate in Embodiment 1. FIG. The plan view of a part of the connected wood surface board in Embodiment 1. FIG. The perspective explanatory view of the stage which performs the actual processing to the long side in Embodiment 1. FIG. The perspective explanatory view of the stage which performs the groove processing in Embodiment 1. FIG. The perspective explanatory view of the stage which forms the short side of a substrate in Embodiment 1. FIG. The perspective explanatory view of the stage which performs the actual processing to the short side of a substrate in Embodiment 1. FIG. In the second embodiment, (a) an explanatory diagram showing the fiber direction of the wood surface layer plate, (b) an explanatory diagram showing the fiber direction of the wood reinforcing plate, and (c) an explanatory diagram showing the fiber direction of the surface layer of the plywood. In the third embodiment, (a) an explanatory diagram showing the fiber direction of the wood surface layer plate, (b) an explanatory diagram showing the fiber direction of the wood reinforcing plate, and (c) an explanatory diagram showing the fiber direction of the surface layer of the plywood. The plan view of the floor for a building in Embodiment 4. FIG. 5 is a cross-sectional explanatory view of a wooden floor board in the fifth embodiment. (A) It is an explanatory view corresponding to the arrow view of XXIIIa in FIG. 22, and is an explanatory view showing the fiber direction of the wood surface layer plate, and (b) is an explanatory view corresponding to the cross section of the line arrow of XXIIIb-XXIIIb in FIG. It is an explanatory view which shows the fiber direction of (c), and is the explanatory view corresponding to the cross section corresponding to the XXIIIc-XXIIIc line arrow of FIG. FIG. 5 is a perspective explanatory view of a stage of manufacturing a wooden substrate in the fifth embodiment.

In this specification, the up and down directions of the wooden floor board and the like in the posture of the constructed state will be described as up and down, respectively. That is, for example, the upper surface of the wooden floor board is the upper surface of the floor for a building and is also a design surface.

The fiber direction of the wood reinforcing plate and the fiber direction of the wood surface layer plate may be opposite to each other in the direction of inclination with respect to the longitudinal direction. In this case, the stress generated in each of the wood surface layer plate and the wood reinforcing plate tends to act along the direction inclined in the opposite direction to the direction of the long side of the wood substrate. As a result, the twisting deformation of the entire wooden floor board can be suppressed more effectively.
In addition, "the directions of inclination with respect to the longitudinal direction are opposite to each other" means that when viewed from above, they are inclined so as to be opposite to each other in the lateral direction from one of the longitudinal directions to the other. Means.

The fiber direction of the wood reinforcing plate and the fiber direction of the wood surface layer plate can be orthogonal to each other. In this case, the twisting deformation of the entire wooden floor board can be suppressed more effectively.
Here, "orthogonal" means that the fiber direction of the wood reinforcing board and the fiber direction of the wood surface layer board are orthogonal to each other when viewed from the normal direction of the upper surface of the wood floor board. However, it is desirable that the fiber directions of the two are substantially orthogonal to each other, and the angle between the two fibers can be, for example, about 80 to 100 °.

The wood reinforcing plate may constitute the upper surface of the wood substrate. That is, the wood reinforcing plate can be interposed between the plywood and the wood surface layer plate.
On the contrary, the wood reinforcing plate may constitute the lower surface of the wood substrate. That is, a plywood can be interposed between the wood reinforcing plate and the wood surface layer plate. In this case, the twisting deformation of the wooden floor board can be suppressed more effectively.

It can be assumed that a surface groove portion formed along the hypotenuse of the surface plate is formed between the wood surface plates adjacent to each other in the longitudinal direction. In this case, since a plurality of surface groove portions are formed along the grain of the wood surface plate, the grain and the surface groove portion can be combined to make the herringbone-like pattern more conspicuous. As a result, the design of the building floor using the wooden floor board can be further improved.

Further, the seams between the short sides of the floor board may be arranged so as not to be connected to the other seams at at least one end thereof. In this case, it is possible to obtain a floor for a building having a better design. That is, it is possible to prevent the seams from being continuous over a wide area. As a result, it is possible to further suppress the conspicuous seams between the short sides of the floorboard, and easily form a herringbone-like building floor having excellent design.

In the method for manufacturing a wood floor board, after producing a connected wood surface board in a state where a plurality of the wood surface boards are connected by a flexible connecting member, the connected wood surface board is placed on the upper surface of the wood substrate. It can also be pasted. In this case, a plurality of wood surface plates can be easily and accurately attached to the wood substrate. As a result, the design of the obtained wooden floor board can be further improved.

After the connected wood surface layer plate is attached to the upper surface of the wood substrate, a plurality of surface layer groove portions are formed by groove processing along the hypotenuse of the surface layer plate between the wood surface layer plates adjacent to each other in the arrangement direction. You can also. In this case, accurate grooving can be performed efficiently.

(Embodiment 1)
The wooden floor board, its manufacturing method, and the embodiment of the floor for a building will be described with reference to FIGS. 1 to 18.
As shown in FIG. 1, the wood floor board 1 of the present embodiment has a wood substrate 2 and a plurality of wood surface board 3. As shown in FIGS. 2 and 3, a plurality of wood surface layers 3 are arranged and joined in parallel on the upper surface of the wood substrate 2.

As shown in FIG. 3B, the wood substrate 2 has a long shape in the shape seen from the upper surface. The wood substrate 2 has a pair of substrate long sides 21 parallel to the longitudinal direction and a pair of substrate short sides 22 inclined with respect to the pair of substrate long sides 21 in the shape seen from the upper surface. ..

As shown in FIGS. 2, 3 (a), and 4, the wood surface plate 3 has a pair of surface plate side sides 31 along the substrate long side 21 of the wood substrate 2 and a surface plate in the shape seen from the upper surface. It has a pair of surface plate hypotenuses 32 that are inclined with respect to the side side 31 and are parallel to each other. The wood surface plate 3 has a fiber direction f3 along the hypotenuse 32 of the surface plate.

As shown in FIG. 3A, the plurality of wood surface plates 3 are arranged on the wood substrate 2 so that the hypotenuses 32 of the surface plates face each other and the side sides 31 of the surface plates are linearly connected to each other. ..
One of the surface plate diagonal sides 32 of the wood surface plate 3 arranged at both ends in the arrangement direction is arranged along the substrate short side 22 of the wood substrate 2.

As shown in FIG. 1, the wood substrate 2 is formed by laminating a plywood 23 and a wood reinforcing plate 24. As shown in FIGS. 3 (b) and 3 (c), the wood reinforcing plate 24 has a fiber direction f24 in a direction different from the fiber direction f23 of the surface layer of the plywood 23.
As shown in FIGS. 3A, 3B, and 3C, the fiber direction f3 of the wood surface layer plate 3 is different from the fiber direction f24 of the wood reinforcing plate 24 and the fiber direction f23 of the surface layer of the plywood 23.

The longitudinal direction of the wood substrate 2 is also a direction parallel to the long side 21 of the wood substrate 2. The longitudinal direction of the wood substrate 2 is appropriately simply referred to as the longitudinal direction X. Further, the lateral direction of the wood substrate 2 is also appropriately referred to simply as the lateral direction Y. The longitudinal direction X and the lateral direction Y are the longitudinal direction and the lateral direction of the wooden substrate 2 when viewed from the normal direction of the upper surface of the wooden floor plate 1. The longitudinal direction X and the lateral direction Y are orthogonal to the normal direction of the upper surface of the wooden floor plate 1, that is, the thickness direction of the wooden floor plate 1. The thickness direction of the wooden floor board 1 is also simply referred to as the thickness direction Z.

Further, as described above, the fiber direction f3 is different from the fiber direction f24 and the fiber direction f23. The meaning of "different" in these directions means, for example, that the angles formed by each other are 10 ° or more. In the present embodiment, the fiber direction f3 is formed at an angle of about 45 ° with the fiber direction f23, and the fiber direction f3 is also formed at an angle of about 45 °.

In this embodiment, the fiber direction f23 on the surface layer of the plywood 23 is a direction along the longitudinal direction X as shown in FIG. 3C. Further, the fiber direction f24 of the wood reinforcing plate 24 is a direction along the lateral direction Y as shown in FIG. 3 (b). That is, in this embodiment, the fiber direction f23 of the surface layer of the plywood 23 and the fiber direction f24 of the wood reinforcing plate 24 are substantially orthogonal to each other. Further, as shown in FIG. 3A, the fiber direction f3 of the wood surface layer plate 3 is inclined with respect to both the longitudinal direction X and the lateral direction Y.

As shown in FIG. 1, the wood reinforcing plate 24 constitutes the upper surface of the wood substrate 2. That is, the wood reinforcing plate 24 is interposed between the plywood 23 and the wood surface layer plate 3.
The wood reinforcing plate 24 is made of one veneer. The thickness of the wood reinforcing plate 24 can be, for example, about 0.8 to 1.0 mm.

The plywood 23 is made by laminating three or more odd-numbered veneers. Of the plurality of veneers constituting the plywood 23, some veneers have a fiber direction X in the longitudinal direction, and some other veneers have a fiber direction Y in the lateral direction. The uppermost veneer of the plywood 23 has a fiber direction X in the longitudinal direction. Along with this, the odd-numbered veneer counting from the uppermost layer has the fiber direction X in the longitudinal direction, and the even-numbered veneer has the fiber direction Y in the lateral direction. Therefore, the veneer of the lowermost layer has the fiber direction X in the longitudinal direction.

In the present embodiment, the wood floor board 1 has two wood reinforcing boards 24 arranged side by side in the longitudinal direction X. Further, as shown in FIG. 1, a backing veneer 25 is attached to the lower surface of the plywood 23.
The plywood 23 and the backing veneer 25 and the plywood 23 and the wood reinforcing plate 24 are each bonded with an adhesive. Further, the wood reinforcing plate 24 and the wood surface layer plate 3 are also adhered with an adhesive.

As shown in FIG. 1, a surface layer groove portion 11 formed along the hypotenuse 32 of the surface layer plate is formed between the wooden surface layer plates 3 adjacent to each other in the longitudinal direction. As shown in FIG. 5, the surface layer groove portion 11 has a substantially V-shape in a cross section perpendicular to the hypotenuse 32 of the surface layer plate 3 of the wood surface layer plate 3. The depth of the surface layer groove portion 11 is shallower than the thickness of the wood surface layer plate 3. That is, the surface layer groove portion 11 does not reach the wood reinforcing plate 24. Further, the depth of the surface layer groove portion 11 is more than half the thickness of the wood surface layer plate 3.

Further, in the wood surface layer plates 3 arranged at both ends in the longitudinal direction X, tapered surfaces 33 are formed on the surface layer plate hypotenuse 32 along the floor plate short side 13 of the wood floor plate 1. The height of the tapered surface 33 in the thickness direction Z is equivalent to the depth of the surface layer groove portion 11 in the thickness direction Z. The inclination angle of the tapered surface 33 with respect to the thickness direction Z is equivalent to the inclination angle of the inner inclined surface of the surface layer groove portion 11 with respect to the thickness direction Z.

Although omitted in FIGS. 1 to 5, as shown in FIGS. 6 to 9, the wood floor board 1 has a pair of floor board long sides 12 on one side and the other side, respectively. It has a portion 122. Further, the wooden floor board 1 has a short side male real part 131 and a short side female real part 132, respectively, on one and the other of the pair of floor board short sides 13. The long-sided male part 121, the long-sided female part 122, the short-sided male part 131, and the short-sided female part 132 are formed on the wood substrate 2.

As shown in FIGS. 6 and 7, the wood floor board 1 includes a first wood floor board 1a and a second wood floor board 1b having shapes substantially mirror images of each other. The first wooden floor board 1a and the second wooden floor board 1b are combined to form the following French herringbone-like building floor 10.

That is, as shown in FIG. 10, a plurality of wooden floor boards 1 are spliced together in the longitudinal direction X and the lateral direction Y to construct the building floor 10. The wooden floor plates 1 adjacent to each other in the lateral direction Y have opposite inclination directions of the floor plate short sides 13 with respect to the floor plate long sides 12. That is, the first wooden floor board 1a and the second wooden floor board 1b are arranged so as to be adjacent to each other in the lateral direction Y.

As shown in FIG. 6, in the first wooden floor board 1a, the long side of the floor board 12 and the short side of the floor board 13 forming the obtuse angled corners 141 between each other are the long side male body portion 121 and the short side male, respectively. It forms a real part 131. Then, the first wood floor board 1a has a long side female real part 122 and a short side female real part, respectively, on the other floor board long side 12 and the floor board short side 13 forming an obtuse angled corner portion 142 between each other. It forms with 132.

As shown in FIG. 7, in the second wooden floor board 1b, the long side of the floor board 12 and the short side of the floor board 13 forming the acute-angled corners 143 between each other are the long side male body portion 121 and the short side male, respectively. It forms a real part 131. Then, the second wood floor board 1b has a long side female real part 122 and a short side female real part, respectively, on the other floor board long side 12 and the floor board short side 13 forming sharp corners 144 between each other. It forms with 132.

As a result, the long side male part 121 of the second wood floor board 1b is fitted into the long side female part 122 of the first wood floor board 1a and actually joined. Further, the long-side male fruit portion 121 of the other first wooden floor board 1a is fitted into the long-side female fruit portion 122 of the second wood floor board 1b and actually joined.

Further, in the longitudinal direction X, the first wooden floor boards 1a and the second wooden floor boards 1b are actually joined to each other and connected to each other.
Further, as shown in FIG. 10, the seam 130 between the short sides 13 of the floor plate is arranged so as not to be connected to the other seam 130 at at least one end thereof. In this embodiment, one end of the seam 130 is connected to the other seam 130, and the other end of the seam 130 is displaced so as not to be connected to the other seam 130.

That is, when focusing on one specific wood floor board 1, the long sides 12 of the floor boards are displaced from each other in the longitudinal direction X between the wood floor board 1 and the wood floor board 1 adjacent to one of the lateral directions Y. It is joined so that there is no such thing. On the other hand, the wood floor board 1 is joined to the wood floor board 1 adjacent to one of the lateral directions Y so that the long sides 12 of the floor board are displaced from each other in the longitudinal direction X. However, one end of the seam 130 that is not connected to the other seam 130 is connected to the surface groove portion 11 of the other wood floor board 1.

In this way, as shown in FIG. 10, a French herringbone-like building floor 10 is constructed. In FIG. 10, the seam 130 is drawn with a thicker line than the surface groove portion 11, which is for convenience. From the viewpoint of design, it is desirable that the width of the seam 130 and the width of the surface groove portion 11 are substantially the same. The same applies to FIG. 21, which will be described later.

Next, a method for manufacturing the wooden floor board 1 will be described with reference to FIGS. 11 to 18.
First, a part of the manufacturing method of the wooden floor board 1 will be described as an outline.
As shown in FIG. 13, a plurality of wood surface layer plates 3 are attached to the upper surface of the rectangular rectangular substrate 20 which is the wood substrate 2 before the outer shape is processed. Then, as shown in FIG. 17, both ends of the rectangular substrate 20 in the longitudinal direction X are cut to form a pair of substrate short sides 22 (floor plate short sides 13).

Next, a specific example of the method for manufacturing the wooden floor board 1 will be described in more detail.
First, as shown in FIG. 11, in order to produce the rectangular substrate 20, the wood reinforcing plate 24 and the backing veneer 25 are bonded to the front and back of the plywood 23, respectively. Here, a method of manufacturing three rectangular substrates 20 at a time is shown.

Two wood reinforcing plates 24 are arranged, laminated and attached to the upper surface of one plywood 23 in the longitudinal direction X of the plywood 23. Further, three backing veneers 25 are arranged side by side in the lateral direction Y and laminated on the lower surface of one plywood 23 and attached. As a result, a large-sized laminated substrate 200 corresponding to three wooden floor boards 1 is obtained.

Next, as shown in FIG. 12, the laminated substrate 200 is cut in parallel with the longitudinal direction X to obtain three long rectangular substrates 20.
Next, as shown in FIG. 13, a plurality of wood surface layers 3 are arranged and attached to the upper surface of the rectangular substrate 20. The plurality of wood surface plates 3 have the same shape and dimensions as each other. When attaching the wood surface plate 3 to the rectangular substrate 20, first, as shown in FIG. 14, the connected wood surface plate 30 in a state where a plurality of wood surface plates 3 are connected by a flexible connecting member is used. To make. After that, the connecting wood surface layer plate 30 is attached to the upper surface of the wood substrate 2.

Here, as the connecting member, for example, the adhesive tape 301 can be used. That is, the adhesive tape 301 is attached and connected over the upper surfaces of the two adjacent wood surface plates 3. Further, in the connecting wood surface plate 30, triangular end surface plate 302 is connected to both ends in the connection direction. By connecting the end surface layer plates 302, the outer shape of the connected wood surface plate 30 is rectangular, which is substantially the same as the outer shape of the rectangular substrate 20. This facilitates the alignment between the rectangular substrate 20 and the connecting wood surface plate 30.

Next, as shown in FIG. 15, the pair of long-sided wood ends of the rectangular substrate 20 are each subjected to actual processing. That is, a long-side male real part 121 is formed on one of the long sides, and a long-side female real part 122 is formed on the other side of the long side (see FIG. 8). Further, a tapered surface 34 is formed on the surface plate side side 31 of the plurality of wood surface plate 3 (see FIG. 8).

Further, after the connecting wood surface plate 30 is attached to the upper surface of the wood substrate 2, as shown in FIG. 16, between the wood surface plates 3 adjacent to each other in the arrangement direction (that is, the longitudinal direction X), along the hypotenuse 32 of the surface plate. Groove. As a result, a plurality of surface groove portions 11 are formed (see FIGS. 1 and 5). In this embodiment, groove processing is performed after the actual processing.
In addition, the upper surface of the wood surface plate 3 is polished. During this polishing process, the above-mentioned adhesive tape 301 is removed.

Next, UV coating is applied to the upper surface of the wood surface layer plate 3 which is the design surface. That is, a paint made of an ultraviolet curable resin is applied to the upper surface of the wood surface layer plate 3, and then the film is cured by irradiating with ultraviolet rays. As a result, a coating film is formed on the surface of the wood surface layer plate 3. This coating film is a transparent or translucent clear coating film.

Next, as shown in FIG. 17, a long rectangular workpiece is cut diagonally at both ends in the longitudinal direction X. That is, it is cut diagonally along the boundary between the end surface plate 302 and the wood surface plate 3 inside the end surface plate 302. As a result, the outer shape of the work becomes a substantially parallelogram. That is, the cut surface at this time corresponds to the short side 22 of the substrate.

Next, as shown in FIG. 18, the wood end of the short side 22 of the substrate is subjected to actual processing. That is, the short side male real portion 231 is formed on one substrate short side 22, and the long side female real portion 232 is formed on the other substrate short side 22 (see FIG. 9).
From the above, the wood floor board 1 is obtained.
The wood floor board 1 shown in FIG. 18 corresponds to the above-mentioned second wood floor board 1b, but the first wood floor board 1a can also be obtained by substantially the same manufacturing method.

Next, the action and effect of this embodiment will be described.
In the wood floor board 1, the wood board 2 has a pair of board long sides 21 and a pair of board short sides 22 inclined with respect to the pair of board long sides 21 and parallel to each other. The hypotenuse 32 of one of the wood surface plates 3 arranged at both ends in the arrangement direction is arranged along the short side 22 of the wood substrate 2. As a result, when a plurality of wooden floor boards 1 are arranged side by side to form a building floor 10, the seam 130 in the longitudinal direction X (that is, the seam 130 between the short sides 13 of the floor boards) is also parallel to the hypotenuse 32 of the surface board of the wood surface board 3. It will be formed. This makes it possible to prevent the herringbone-like pattern from being divided by the seam 130 of the wooden floor board 1. As a result, it is possible to obtain a floor 10 for a building having an excellent design, in which a herringbone-like pattern appears continuously and naturally as a whole.

Further, the wood substrate 2 is formed by laminating a plywood 23 and a wood reinforcing plate 24 having a fiber direction f24 in a direction different from the fiber direction f23 of the surface layer of the plywood 23. The fiber direction f3 of the wood surface layer plate 3 is different from the fiber direction f24 of the wood reinforcing plate 24 and the fiber direction f23 of the surface layer of the plywood 23. As a result, it is possible to suppress the torsional deformation of the wood floor board 1 due to the warping stress of the wood surface board 3.

Further, since the building floor 10 is formed by joining a plurality of wooden floor boards 1 together, it is excellent in design. Further, since the twisting deformation of each wooden floor board 1 can be suppressed, it is easy to obtain a building floor 10 having excellent design. Further, the wooden floor plates 1 adjacent to each other in the lateral direction Y of the wooden substrate 2 have the inclination directions of the short sides 13 of the floor plates with respect to the longitudinal direction X opposite to each other. Along with this, the wood surface boards 3 adjacent to each other in the lateral direction Y of the wood floor board 1 have the surface board hypotenuse 32 and the wood grain tilt directions opposite to each other. As a result, the herringbone-like pattern appears on the upper surface of the building floor 10, that is, the design surface.

Further, in manufacturing the wood floor board 1, the wood surface board 3 is attached to the upper surface of the rectangular board 20 which is the wood board 2 before the outer shape is processed. As a result, the rectangular substrate 20 that is relatively easy to handle can be used until the step of attaching the wood surface layer plate 3. Therefore, the production efficiency can be improved and the accuracy of the pasting work can be improved. Then, after the pasting work, both ends of the rectangular substrate 20 in the longitudinal direction X are cut to form a pair of short sides of the substrate 22. As a result, the above-mentioned wooden floor board 1 having excellent designability, which can effectively suppress twisting deformation, can be efficiently obtained.

The wood reinforcing plate 24 constitutes the upper surface of the wood substrate 2. That is, the wood reinforcing plate 24 is interposed between the plywood 23 and the wood surface layer plate 3. As a result, the wood reinforcing plate 24 can more effectively suppress the warp of the wood surface layer plate 3. As a result, the twisting deformation of the wooden floor board 1 can be effectively suppressed.

A surface groove portion 11 formed along the hypotenuse 32 of the surface plate is formed between the wood surface plates 3 adjacent to each other in the longitudinal direction X. Since the plurality of surface groove portions 11 are formed along the grain of the wood surface plate 3, the grain and the surface groove portion 11 can be combined to make the herringbone-like pattern more conspicuous. As a result, the design of the building floor 10 can be further improved.

Further, in the floor 10 for a building, the seams 130 between the short sides 13 of the floor plates may be arranged so as not to be connected to the other seams 130 at at least one end thereof. This can prevent the seams 130 from being continuous over a wide area. As a result, it is possible to further suppress the conspicuousness of the seams 130 between the short sides 13 of the floorboards, and it is possible to easily form the herringbone-like building floor 10 having excellent design.

In the method for manufacturing the wood floor board 1, the connected wood surface board 30 prepared in advance is attached to the upper surface of the wood substrate 2. Thereby, the plurality of wood surface layer plates 3 can be easily and accurately attached to the wood substrate 2. As a result, the design of the obtained wooden floor board 1 can be further improved.

A plurality of surface layer groove portions 11 are formed by attaching the connecting wood surface layer plate 30 to the upper surface of the wood substrate 2 and then processing the grooves. As described above, by performing the groove processing after the connecting wood surface layer plate 30 is attached to the wood substrate 2, accurate groove processing can be efficiently performed.

As described above, according to the present embodiment, it is possible to provide a wooden floor board having excellent design, a method for manufacturing the same, and a floor for a building, which can effectively suppress twisting deformation.

(Embodiment 2)
As shown in FIG. 19, this embodiment is a form of a wooden floor plate 1 in which the fiber direction f24 of the wood reinforcing plate 24 and the fiber direction f3 of the wood surface layer plate 3 are inclined in opposite directions with respect to the longitudinal direction X. Is.

That is, in the first embodiment, as shown in FIG. 3 (b), the fiber direction f24 of the wood reinforcing plate 24 is the lateral direction Y, whereas in this embodiment, as shown in FIG. 19 (b). , The fiber direction f24 of the wood reinforcing plate 24 is inclined with respect to the lateral direction Y and the longitudinal direction X. In the fiber direction f24, the direction of inclination with respect to the longitudinal direction X is opposite to the fiber direction f3 of the wood surface layer plate 3.
Others are the same as those in the first embodiment.

In this embodiment, the stress generated in each of the wood surface layer plate 3 and the wood reinforcing plate 24 tends to act along the direction inclined in the opposite direction to the longitudinal direction X. As a result, the twisting deformation of the entire wooden floor board 1 can be suppressed more effectively.
In addition, it has the same effect as that of the first embodiment.

(Embodiment 3)
As shown in FIG. 20, this embodiment is a form of the wood floor board 1 in which the fiber direction f24 of the wood reinforcing board 24 and the fiber direction f3 of the wood surface layer board 3 are orthogonal to each other.

In this embodiment, as shown in FIG. 20A, the fiber direction f3 of the wood surface layer plate 3 is inclined by about 45 ° with respect to the longitudinal direction X. As shown in FIG. 20B, the fiber direction f24 of the wood reinforcing plate 24 is also inclined by about 45 ° with respect to the longitudinal direction X. However, in the fiber direction f24, the direction of inclination with respect to the longitudinal direction X is opposite to the fiber direction f3 of the wood surface layer plate 3. As a result, the fiber direction f3 of the wood surface layer plate 3 and the fiber direction f24 of the wood reinforcing plate 24 are orthogonal to each other when viewed from the thickness direction Z.
Others are the same as those in the first embodiment.

In this embodiment, the twisting deformation of the entire wooden floor board 1 can be suppressed more effectively.
In addition, it has the same effect as that of the first embodiment.

(Embodiment 4)
As shown in FIG. 21, this form is a form of a building floor 10 in which the arrangement of a plurality of wooden floor boards 1 is changed.
In this embodiment, the seams 130 between the short sides 13 of the floor plate are arranged so as not to be connected to the other seams 130 at both ends thereof. That is, the wooden floor boards 1 adjacent to each other in the lateral direction Y are joined in a state of being displaced in the longitudinal direction X. As a result, the plurality of seams 130 are scattered in an independent state.
Other configurations are the same as those in the first embodiment.

In this embodiment, the seam 130 tends to be less noticeable.
In addition, it has the same effect as that of the first embodiment.

(Embodiment 5)
In this embodiment, as shown in FIGS. 22 to 24, the wood reinforcing plate 24 is attached to the lower surface of the plywood 23.
That is, the wood substrate 2 is composed of the plywood 23 and the wood reinforcing plate 24 attached to the lower side surface of the plywood 23. Further, in the present embodiment, the ones corresponding to the backing veneer 25 in the first to fourth embodiments are not laminated.

Further, in this embodiment, a plurality of wood surface layer plates 3 are attached to the upper surface of the plywood 23. Therefore, the wood floor board 1 of the present embodiment has a structure in which the plywood 23 is sandwiched from above and below by the wood reinforcing board 24 and the plurality of wood surface layer boards 3.

Further, in this embodiment, as shown in FIG. 23, the fiber direction f24 of the wood reinforcing plate 24 is orthogonal to the fiber direction f3 of the wood surface layer plate 3. Further, the fiber direction f24 of the wood reinforcing plate 24 is inclined by about 45 ° with respect to the fiber direction f23 of the surface layer (that is, the uppermost layer and the lowest layer) of the plywood 23. These points are the same as those in the third embodiment (see FIG. 20) described above. The fiber direction f24 shown in FIG. 23 (c) indicates the fiber direction of the uppermost veneer and the lowermost veneer of the plywood 23.

As shown in FIG. 24, in the wood substrate 2 of the wood floor board 1 of the present embodiment, the wood reinforcing board 24 is adhered to the back surface (lower side surface) of the plywood 23. FIG. 24 is a diagram of the manufacturing process of this embodiment, which corresponds to FIG. 11 of the first embodiment. Therefore, the figure shows how a large-sized laminated substrate 200 corresponding to three rectangular substrates 20 (see FIG. 12) is manufactured. As shown in the figure, the wood reinforcing plate 24 has a fiber direction f24 inclined with respect to each side. The wood reinforcing plate 24 is bonded to the plywood 23 having the fiber direction f23 along the longitudinal direction X on the surface layer.
Others are the same as in the third embodiment.

In this embodiment, since the number of layers constituting the wooden floor board 1 is small, the manufacturing man-hours can be reduced.
Further, in the case of this embodiment, it is possible to more effectively suppress the twisting deformation of the wooden floor board 1.
In addition, it has the same effect as that of the third embodiment.

The present invention is not limited to the above embodiment, and can be applied to various embodiments.
For example, while having the same layer structure as in the fifth embodiment, the fiber direction f24 of the wood reinforcing plate 24 is changed in the inclination angle as in the first and second embodiments (see FIGS. 3 (b) and 19 (b)). Or, as in the first embodiment (see FIG. 3B), the Y direction can be used.

1 wood floor board 10 building floor 2 wood board 21 board long side 22 board short side 23 plywood 24 wood reinforcement board 3 wood surface board 31 surface board side side 32 surface board diagonal side X longitudinal direction Y short side f3 wood surface board fiber Direction f23 Fiber direction of the surface layer of plywood f24 Fiber direction of wood reinforcement board

Claims (9)

With a wooden board
A wood floor board having a plurality of wood surface boards arranged and joined in parallel on the upper surface of the wood substrate.
The wood substrate has a long shape when viewed from the upper surface, and has a pair of substrate long sides parallel to the longitudinal direction and a pair of substrate short sides inclined with respect to the pair of substrate long sides. And have
The wood surface plate has a pair of surface plates along the long side of the substrate and a pair of surface plates inclined with respect to the side of the surface plate and parallel to each other in the shape seen from the upper surface. It has a hypotenuse, and the fiber direction is along the hypotenuse of the surface plate.
The plurality of wood surface plates are arranged on the wood substrate so that the hypotenuses of the surface plates face each other and the side sides of the surface plates are connected in a straight line.
Moreover, the hypotenuse of one of the wood surface plates arranged at both ends in the arrangement direction is arranged along the short side of the substrate of the wood substrate.
The wood substrate is formed by laminating a plywood and a wood reinforcing plate having a fiber direction different from the fiber direction of the surface layer of the plywood.
The fiber direction of the wood surface layer plate is different from the fiber direction of the wood reinforcement plate and the fiber direction of the surface layer of the plywood. The wood floor board according to claim 1, wherein the fiber direction of the wood reinforcing board and the fiber direction of the wood surface layer board are opposite to each other in the direction of inclination with respect to the longitudinal direction. The wood floor board according to claim 2, wherein the fiber direction of the wood reinforcing board and the fiber direction of the wood surface layer board are orthogonal to each other. The wood floor board according to any one of claims 1 to 3, wherein a surface groove portion formed along the hypotenuse of the surface board is formed between the wood surface boards adjacent to each other in the longitudinal direction. A building floor formed by splicing a plurality of wooden floorboards according to any one of claims 1 to 4 in the longitudinal direction and the lateral direction.
The wooden floor boards adjacent to each other in the lateral direction are building floors in which the inclination directions of the short sides of the floor boards with respect to the longitudinal direction are opposite to each other. The floor for a building according to claim 5, wherein the seam between the short sides of the floor plate is arranged so as not to be connected to the other seam at at least one end thereof. The method for manufacturing a wooden floor board according to any one of claims 1 to 4.
A plurality of the wood surface layer plates are attached to the upper surface of the rectangular rectangular board which is the wood board before the outer shape is processed, and both ends of the rectangular board in the longitudinal direction are cut to form a pair of short boards. A method of manufacturing a wooden floorboard that forms edges. The seventh aspect of the present invention, wherein a connected wood surface board in a state where the plurality of wood surface boards are connected by a flexible connecting member is produced, and then the connected wood surface board is attached to the upper surface of the wood substrate. The method for manufacturing a wooden floor board described. After the connected wood surface plate is attached to the upper surface of the wood substrate, a plurality of surface groove portions are formed by groove processing along the hypotenuse of the surface plate between the wood surface plates adjacent to each other in the arrangement direction. The method for manufacturing a wooden floor board according to claim 8.

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