Mounting Structure of Wood-Based Decorative Materials

Abstract

To provide a mounting structure for a wood-based decorative material that can be configured with a small number of parts and has a simple structure.SOLUTION: A decorative mounting material 20 is fixed inside a recessed groove 11 of a decorative material 10, including a bottom piece 21 that abuts and is fixed to a bottom surface 11b of the recessed groove 11, and a locking piece 25 that projects vertically from the bottom piece 21. A frame-side mounting member 30 includes a fixed piece 31 fixed to a frame 50 and a protruding piece 35 that protrudes from the fixed piece 31 in the vertical direction. After fixing the frame-side mounting member 30 to the frame 50 and fixing the decorative mounting material 20 inside the recessed groove 11 of the decorative material 10, the protruding piece 35 of the frame-side mounting member 30 is inserted into the recessed groove 11, so that the decorative material 10 can be mounted to the frame 50 by engaging the protruding piece 35 and the locking piece 25.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] This invention relates to an attachment structure for wood-based decorative materials.

Background Art

[0002] Patent Document 1 discloses an attachment structure for wood panels in which a plurality of wood panels are arranged and constructed along an indoor wall surface. In the configuration disclosed in this Patent Document 1, mounting recesses with different depths are formed on the back surface of the wood panel, and the wood panel is supported on the indoor wall surface in a state of being separated from the indoor wall surface via a mounting member disposed in this mounting recess. The mounting member for attaching the wood panel to the wall surface includes a mounting fitting composed of an L-shaped metal fitting and a hanging fitting, and a coupling member composed of a catcher and a pushing member.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the above-described conventional structure, at least four types of mounting members (L-shaped metal fittings, hanging fittings, catchers, pushing members) are required, and there is a problem in that the number of parts is large and the cost is high. Further, due to the large number of parts, there are problems such as the work being time-consuming and work mistakes being likely to occur.

[0005] Further, since mounting recesses with different depths have to be formed on the back surface of the wood panel, there is a problem in that the processing is time-consuming. Further, since complicated and large holes are required in the wood panel, there is a problem in that the strength of the wood panel is reduced. Therefore, an object of the present invention is to provide an attachment structure for wood-based decorative materials that can be configured with a small number of parts and has a simple structure.

Means for Solving the Problem

[0006] In order to solve the above problems, the present invention includes a decorative material, a decorative attachment member fixed to the decorative material, and a body-side attachment member fixed to the body of a building. The decorative material has a concave groove formed on the surface facing the body. The decorative attachment member is fixed inside the concave groove, and includes a bottom piece that abuts and is fixed to the bottom surface of the concave groove, and a locking piece that protrudes in the vertical direction from the bottom piece. The body-side attachment member includes a fixing piece fixed to the body, and a protruding piece that protrudes in the vertical direction from the fixing piece. After fixing the body-side attachment member to the body and fixing the decorative attachment member inside the concave groove of the decorative material, the protruding piece of the body-side attachment member is inserted into the concave groove, so that the protruding piece and the locking piece are engaged to attach the decorative material to the body.

Advantages of the Invention

[0007] As described above, the present invention fixes the body-side attachment member to the body, and after fixing the decorative attachment member inside the concave groove of the decorative material, the protruding piece of the body-side attachment member is inserted into the concave groove, so that the protruding piece and the locking piece are engaged to attach the decorative material to the body. According to such a configuration, since the decorative material can be attached by a pair of engaging attachment members (the decorative attachment member and the body-side attachment member), it can be configured with a small number of parts, and a mounting structure for a wooden decorative material with a simple structure can be provided.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Embodiments for Carrying Out the Invention

[0009] Embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 2, the attachment structure of the wood-based decorative material according to the present embodiment includes a decorative material 10, a decorative attachment member 20 fixed to the decorative material 10, and a body-side attachment member 30 fixed to a building body 50. In the present embodiment, as shown in FIG. 1, a plurality of decorative materials 10 are arranged in parallel with a certain interval provided therebetween. These plurality of decorative materials 10 are attached so as to protrude from the surface of the ceiling or wall body of the building and can be used as decorative materials. Note that this wood-based decorative material can be attached at any location as long as there is at least a flat surface to which the body-side attachment member 30 can be attached. For example, it may be attached to the surface (ceiling surface or wall surface) of the body 50, or may be attached to a base material fixed to the body 50.

[0010] The decorative material 10 is made of a wood material and can be formed, for example, of a solid wood material, plywood, laminated wood, etc. The wood material referred to in the present invention includes not only unprocessed wood but also processed wood such as laminated wood with wood pasted on wood, wood with paint applied, wood with a sheet pasted on its surface, wood injected with a preservative, and wood using non-combustible wood (wood injected with a non-combustible agent). The decorative material 10 may be a simple wooden one or may be formed of a composite material containing wood. The decorative material 10 according to the present embodiment is a long louver material as shown in FIG. 1, and a concave groove 11 is formed on the surface facing the housing 50. This concave groove 11 is formed along the longitudinal direction of the decorative material 10 over the entire length of the decorative material 10. As shown in FIG. 4, the inner surface of this concave groove 11 is a concave shape without a step, and is formed by a pair of side surfaces 11a parallel to each other and a bottom surface 11b formed at a right angle to the side surface 11a. In the present embodiment, a louver-shaped decorative material 10 is used, but the shape of the decorative material 10 is not limited to this and can be any shape (for example, a panel shape, a block shape, a pipe shape, etc.).

[0011] As shown in FIG. 4, the decorative mounting member 20 is a member fixed inside the concave groove 11 of the decorative material 10. The decorative mounting member 20 according to the present embodiment is an extruded member made of aluminum. This decorative mounting member 20 is formed to have a dimension that does not protrude from the concave groove 11 and has a size that can be completely hidden inside the concave groove 11. The length in the longitudinal direction of the decorative mounting member 20 according to the present embodiment is shorter than the length in the longitudinal direction of the concave groove 11. Therefore, when the decorative mounting member 20 is fixed inside the concave groove 11, as shown in FIG. 5, the decorative mounting member 20 does not reach both ends of the concave groove 11, and portions (empty groove portions 12) where the decorative mounting member 20 is not attached are provided at both ends of the concave groove 11. As shown in FIG. 3(a), this decorative mounting member 20 has a substantially torii-shaped cross section and includes a bottom piece 21 and a pair of locking pieces 25.

[0012] As shown in Fig. 4, the bottom piece 21 is a plate-like part that abuts against and is fixed to the bottom surface 11b of the concave groove 11. The lateral width of this bottom piece 21 is formed to be approximately equal to the lateral width of the bottom surface 11b of the concave groove 11. The bottom piece 21 is attached by a louver fastener 29 (such as a screw) so as to cover the bottom surface 11b of the concave groove 11. The louver fastener 29 passes through the bottom piece 21 and is screwed to the bottom surface 11b of the concave groove 11. This bottom piece 21 is provided with an overhanging part 22 that protrudes laterally beyond a pair of locking pieces 25 described later. By providing the overhanging part 22, the area of contact with the bottom surface 11b of the concave groove 11 increases, enabling stable attachment. The outer surface 23 (the surface that abuts against the concave groove 11) of this bottom piece 21 is a flat surface without irregularities, including the overhanging part 22.

[0013] As shown in Fig. 3(a), the locking piece 25 is formed to protrude vertically from the bottom piece 21. A pair of left and right locking pieces 25 are formed, and the pair of locking pieces 25 are formed parallel to each other. In the following description, the surface where the pair of locking pieces 25 face each other is the inner surface 25a, and the opposite surface is the outer surface 25b. Also, when viewed in the protruding direction of the locking piece 25, the end on the bottom piece 21 side is called the base end, and the end on the opposite side of the base end (the protruding end) is called the tip end.

[0014] A locking receiving part 26 is formed on the outer surface 25b of the locking piece 25. This locking receiving part 26 is a part that engages with a locking jaw part 37 described later, and is formed near the base end of the locking piece 25 (when viewed in the protruding direction of the locking piece 25, at least closer to the bottom piece 21 than the middle). This locking receiving part 26 is formed to protrude from the outer surface 25b of the locking piece 25. This locking receiving part 26 is formed in a ratchet shape so that the locking jaw part 37 that has once engaged does not easily come off.

[0015] Specifically, this locking receiving portion 26 includes a hooking portion 26a, an inclined portion 26b, and a parallel portion 26c. The hooking portion 26a forms a surface perpendicular to the outer surface 25b of the locking piece 25 so as to face the bottom piece 21. Between the hooking portion 26a and the bottom piece 21, there is a recess relative to the hooking portion 26a and the bottom piece 21, forming a locking groove 26d that opens laterally. Also, the inclined portion 26b is inclined so as to protrude towards the proximal end side. The parallel portion 26c connects the top of the hooking portion 26a and the top of the inclined portion 26b, forming a surface parallel to the outer surface 25b of the locking piece 25.

[0016] As shown in FIG. 4(a), the above-described decorative attachment member 20 is fixed in a state where the outer surface 23 of the bottom piece 21 is in close contact with the bottom surface 11b of the concave groove 11. The width of the concave groove 11 is formed to be such that the bottom piece 21 can be attached with almost no gap, facilitating positioning when attaching the decorative attachment member 20. When the decorative attachment member 20 is attached inside the concave groove 11, a gap G is formed between the side surface 11a of the concave groove 11 and the locking piece 25 by the amount that the protruding portion 22 protrudes. This gap G is used as a space for inserting a protruding piece 35 described later.

[0017] As shown in FIG. 5(a), the body-side attachment member 30 is directly fixed to the building body 50. The body-side attachment member 30 can be fixed to any flat surface, for example, it is fixed in a state of being in contact with the surface of a wall surface, a ceiling surface, a base material, etc. The body-side attachment member 30 according to this embodiment is an extruded aluminum material. The length in the longitudinal direction of this body-side attachment member 30 is formed to be the same as the length in the longitudinal direction of the concave groove 11 or shorter than the length in the longitudinal direction of the concave groove 11. For example, the length in the longitudinal direction of the body-side attachment member 30 may be the same as the length in the longitudinal direction of the decorative attachment member 20. Alternatively, as shown in FIG. 7, a plurality of short body-side attachment members 30 may be used to fix one decorative attachment member 20. As shown in FIG. 3(b), this body-side attachment member 30 has a substantially torii-shaped cross-section and includes a fixing piece 31 and a pair of protruding pieces 35.

[0018] The fixing piece 31 is a plate-shaped part that abuts against and is fixed to the housing 50. This fixing piece 31 is attached to the housing 50 by a housing fixture 39 (such as a screw). The housing fixture 39 passes through the fixing piece 31 and is screwed onto the housing 50.

[0019] This fixing piece 31 is provided with an extension 32 that protrudes laterally beyond a pair of protruding pieces 35 described later. By providing the extension 32, the area in contact with the housing 50 becomes larger, enabling stable attachment. The outer surface 33 (the surface that abuts against the housing 50) of the fixing piece 31 is a flat surface without irregularities, including the extension 32.

[0020] As shown in Fig. 3(b), the protruding pieces 35 are formed to protrude vertically from the fixing piece 31. A pair of protruding pieces 35 are formed on the left and right, and the pair of protruding pieces 35 are formed parallel to each other. In the following description, the surface where the pair of protruding pieces 35 face each other is the inner surface 35a, and the opposite surface is the outer surface 35b. Also, when viewed in the protruding direction of the protruding piece 35, the end on the fixing piece 31 side is called the base end, and the end on the opposite side of the base end (the protruding end) is called the tip end.

[0021] A pair of locking pieces 25 of the decorative mounting member 20 can be inserted between the pair of protruding pieces 35. Specifically, the distance between the pair of protruding pieces 35 (excluding the protrusions on the inner surface 35a) is formed larger than the width of the pair of locking pieces 25 (excluding the protrusions on the outer surface 25b), so that the pair of locking pieces 25 can be inserted between the pair of protruding pieces 35. When the pair of locking pieces 25 are inserted between the pair of protruding pieces 35 in this way, as described later, the protrusions provided on the inner surface 35a of the protruding piece 35 and the protrusions provided on the outer surface 25b of the locking piece 25 are engaged and fitted so as not to easily fall off.

[0022] On the inner surface 35a of the protruding piece 35, a locking jaw portion 37 is formed. The locking jaw portion 37 is a hook-shaped portion that engages with the locking receiving portion 26 of the locking piece 25, and is formed near the tip of the protruding piece 35. The locking jaw portion 37 according to the present embodiment has a shape in which the tip of the protruding piece 35 is refracted inward. By engaging the pair of left and right locking jaw portions 37 so as to hold the locking receiving portion 26 respectively, the body side mounting member 30 and the decorative mounting member 20 can be fixed so as not to fall off each other. When the locking jaw portion 37 and the locking receiving portion 26 are engaged, as shown in FIG. 4(b), the tip of the locking jaw portion 37 enters the locking groove 26d between the hooking portion 26a and the bottom piece 21. Therefore, even if a force is applied to separate the two, the locking jaw portion 37 is hooked on the hooking portion 26a, and the once-engaged locking jaw portion 37 is not easily disengaged.

[0023] Note that the protruding piece 35 is provided with a thick portion 36 on the base end side of the locking jaw portion 37 so as to be continuous with the locking jaw portion 37. The thick portion 36 is a portion where the protruding piece 35 is formed to be slightly thicker, and is formed thicker than most of the protruding piece 35 (for example, the portion on the base end side of the thick portion 36 and continuous with the thick portion 36). When the locking jaw portion 37 and the locking receiving portion 26 are engaged, as shown in FIG. 4(b), the thick portion 36 abuts against the parallel portion 26c of the locking receiving portion 26 and holds it from both sides.

[0024] Also, a tip receiving portion 38 is provided on the inner surface 35a of the protruding piece 35. The tip receiving portion 38 is a portion for receiving the tip of the locking piece 25 when the locking jaw portion 37 and the locking receiving portion 26 are engaged. The tip receiving portion 38 includes a bulging portion 38a bulging from the inner surface 35a of the protruding piece 35 and a protruding portion 38b protruding more inward than the bulging portion 38a. When the locking jaw portion 37 and the locking receiving portion 26 are engaged, as shown in FIG. 4(b), the protruding portion 38b supports the tip of the locking piece 25, and the bulging portion 38a supports the outer surface 25b of the locking piece 25. The above-described decorative material 10 can be attached as follows.

[0025] First, as shown in Fig. 5(a), the body-side attachment member 30 is fixed to the body 50. The body-side attachment member 30 can be fixed by the body fixture 39. Also, the decorative attachment member 20 is fixed inside the concave groove 11 of the decorative material 10. The decorative attachment member 20 can be fixed by the louver fixture 29.

[0026] After that, as shown in Fig. 5(b), the protruding piece 35 of the body-side attachment member 30 is inserted into the concave groove 11. At this time, as shown in Figs. 4(a) and (b), the protruding piece 35 is inserted into the gap G between the side surface 11a of the concave groove 11 and the locking piece 25. As it is inserted, the locking jaw portion 37 hits the locking receiving portion 26, but by press-fitting it as it is, the locking jaw portion 37 can move deeper along the inclined portion 26b (the protruding piece 35 and the locking piece 25 are elastically deformed). When it is inserted until the locking jaw portion 37 gets over the locking receiving portion 26, the tip of the locking jaw portion 37 enters the locking groove 26d. As a result, at the tip position of the locking piece 25, the locking piece 25 and the protruding piece 35 are engaged. At this time, since the tip receiving portion 38 receives the tip of the locking piece 25, the protruding piece 35 of the body-side attachment member 30 is not pushed in more than necessary.

[0027] Thus, as shown in Fig. 5(c), the decorative material 10 can be attached to the body 50. By attaching it in this way, as shown in Fig. 4(b), since the protruding piece 35 having the check claw and the locking piece 25 are engaged, the decorative material 10 is fixed so as not to easily fall off from the body 50. Also, since the protruding piece 35 (the thick portion 36 and the bulging portion 38a) holds the locking receiving portion 26 pinched from both sides, the decorative material 10 can be fixed without rattling.

[0028] Note that, as shown in FIG. 6, a plugging material 13 may be attached to the empty groove portions 12 at both ends of the concave groove 11. The plugging material 13 is a member for filling the concave groove 11, and it is desirable to form it in the same shape as the internal space of the concave groove 11. It is desirable to use a wood material for the plugging material 13, and it is particularly desirable to use the same material as the decorative material 10. When using the plugging material 13, as shown in FIG. 6, before attaching it to the body side attachment member 30, the plugging material 13 is fixed to the empty groove portion 12 of the decorative material 10. Alternatively, the plugging material 13 may be fixed after attaching the decorative material 10 to the body 50. The plugging material 13 can be fixed to the empty groove portion 12 with screws, nails, adhesives, etc. By filling the empty groove portion 12 with the plugging material 13 in this way, the concave groove 11 can be made less conspicuous.

[0029] Also, the decorative material 10 can be used by connecting it in the longitudinal direction. At this time, for example, as shown in FIGS. 8 and 9, the decorative material 10 may be connected using a joint pin 45. Specifically, a connecting hole 15 for inserting the joint pin 45 is formed in the end face of the decorative material 10. The connecting holes 15 are formed at the overlapping positions of the end faces facing each other in the two decorative materials 10 to be connected. By inserting both ends of the joint pin 45 into the opposing connecting holes 15, the decorative materials 10 can be connected in the longitudinal direction.

[0030] At this time, as shown in FIG. 8, if the joint pin 45 is not completely buried in the connecting hole 15, the decorative materials 10 can be connected by providing a gap at the connecting portion. Also, as shown in FIG. 9, if the joint pin 45 is completely buried in the connecting hole 15, the decorative materials 10 can be butted and connected without providing a gap at the connecting portion.

[0031] As described above, according to the present embodiment, after fixing the body-side attachment member 30 to the body 50 and fixing the decorative attachment member 20 inside the concave groove 11 of the decorative material 10, by inserting the protruding piece 35 of the body-side attachment member 30 into the concave groove 11, the protruding piece 35 and the locking piece 25 can be engaged to attach the decorative material 10 to the body 50. According to such a configuration, since the decorative material 10 can be attached by a pair of engaging attachment members (the decorative attachment member 20 and the body-side attachment member 30), it can be configured with a small number of parts, and a mounting structure for a wooden decorative material with a simple structure can be provided. Since the number of parts is small, the manufacturing cost can be reduced. In addition, the workability is good, construction can be carried out in a short time, and work mistakes are less likely to occur.

[0032] Further, the decorative attachment member 20 includes a pair of locking pieces 25 parallel to each other, and is fixed inside the concave groove 11 so that a gap G is formed between the side surface 11a of the concave groove 11 and the locking piece 25. The body-side attachment member 30 includes a pair of protruding pieces 35 parallel to each other, and is configured such that when the protruding piece 35 is inserted into the concave groove 11, the protruding piece 35 is inserted into the gap G. According to such a configuration, since the protruding piece 35 only needs to be inserted into the gap G during construction, work mistakes are less likely to occur during fitting.

[0033] Further, the bottom piece 21 includes an overhanging portion 22 that protrudes laterally more than the locking piece 25. According to such a configuration, just by arranging the bottom piece 21 in the concave groove 11, a parallel gap G is automatically formed by the overhanging portion 22, so that positioning is easy when attaching the decorative attachment member 20 to the concave groove 11.

[0034] Further, a hook-shaped locking jaw portion 37 is formed near the tip of the protruding piece 35, and a locking receiving portion 26 that engages with the locking jaw portion 37 is formed near the base end of the locking piece 25. By engaging the locking jaw portion 37 and the locking receiving portion 26, the body-side attachment member 30 and the decorative attachment member 20 are fixed. According to such a configuration, since the body-side attachment member 30 (locking jaw portion 37) and the decorative attachment member 20 (locking receiving portion 26) are engaged deeper inside the concave groove 11, the engagement between the two is difficult to come off, that is, the decorative material 10 is less likely to fall off.

[0035] In addition, the body-side attachment member 30 is provided with a tip receiving portion 38 that receives the tip of the decorative attachment member 20 when the locking jaw portion 37 and the locking receiving portion 26 are engaged. According to such a configuration, the decorative attachment member 20 is not pushed in more than necessary during fitting, and damage to the member and the like can be prevented.

[0036] In addition, the concave groove 11 is formed over the entire length of the decorative material 10, and at the end of the concave groove 11, an empty groove portion 12 where the decorative attachment member 20 is not attached is provided, and a plugging material 13 for filling the concave groove 11 may be attached to the empty groove portion 12. If configured in this way, the concave groove 11 can be filled to enhance the design property. Also, if a wooden plugging material 13 is used, there is a sense of unity with the decorative material 10, so the design property can be enhanced. Since this plugging material 13 can be attached simply by inserting it into the concave groove 11, the construction work is also easy.

[0037] In the above-described embodiment, the length of the decorative attachment member 20 in the longitudinal direction is formed shorter than the length of the concave groove 11 in the longitudinal direction, and the empty groove portion 12 is provided at the end of the concave groove 11, but it is not limited to this. That is, the length of the decorative attachment member 20 in the longitudinal direction may be the same as the length of the concave groove 11 in the longitudinal direction. In this case, since there is no empty groove portion 12 at the end of the concave groove 11, the plugging material 13 is not used.

[0038] Also, on the end face of the decorative material 10, a connecting hole 15 for inserting a joint pin 45 is formed, and by inserting the joint pin 45 into the connecting hole 15, a plurality of decorative materials 10 may be connectable in the longitudinal direction. If configured in this way, the decorative materials 10 can be easily connected. Also, although the wooden decorative material 10 is likely to warp, it is less likely to be misaligned by being connected by the joint pin 45. Also, since the gap between the joints can be changed according to the construction site, it can be constructed to look good.

Explanation of Signs

[0039] 10 Decorative material 11 Concave groove 11a Side surface 11b Bottom surface 12 Hollow groove part 13 Plugging material 15 Connecting hole 20 Decorative attachment material 21 Bottom piece 22 Protruding part 23 Outer surface 25 Locking piece 25a Inner side surface 25b Outer side surface 26 Locking receiving part 26a Hanging part 26b Inclined part 26c Parallel part 26d Locking groove 29 Retainer for louver 30 Mounting material on the body side 31 Fixed piece 32 Extension part 33 Outer surface 35 Protruding piece 35a Inner side surface 35b Outer side surface 36 Thick part 37 Locking jaw part 38 Tip receiving part 38a Bulging part 38b Protrusion part 39 Retainer for the body 45 Joint pin 50 Body G Gap

Claims

1. A decorative material, a decorative attachment member fixed to the decorative material, and a body-side attachment member fixed to the body of a building, comprising: The decorative material has a concave groove formed on the surface facing the body. The decorative attachment member is fixed inside the concave groove, and includes a bottom piece that abuts and is fixed to the bottom surface of the concave groove, and a locking piece that protrudes in a vertical direction from the bottom piece. The body-side attachment member includes a fixing piece fixed to the body, and a protruding piece that protrudes in a vertical direction from the fixing piece. After fixing the body-side attachment member to the body and fixing the decorative attachment member inside the concave groove of the decorative material, the protruding piece of the body-side attachment member is inserted into the concave groove, so that the protruding piece and the locking piece are engaged to attach the decorative material to the body. The decorative attachment member includes a pair of locking pieces parallel to each other, and is fixed inside the concave groove so that a gap is formed between the side surface of the concave groove and the locking piece. The body-side attachment member includes a pair of protruding pieces parallel to each other, and is configured such that when the protruding piece is inserted into the concave groove, the protruding piece is inserted into the gap. Attachment structure for a wood-based decorative material.

2. The bottom piece includes an overhanging portion that overhangs laterally beyond the locking piece. The attachment structure for a wood-based decorative material according to Claim 1.

3. A hook-shaped locking jaw portion is formed near the tip of the protruding piece. A locking receiving portion that engages with the locking jaw portion is formed near the base end of the locking piece. The body-side attachment member and the decorative attachment member are fixed by the engagement of the locking jaw portion and the locking receiving portion. The attachment structure for a wood-based decorative material according to any one of Claims 1 or 2.

4. The body-side attachment member includes a tip receiving portion that receives the tip of the decorative attachment member when the locking jaw portion and the locking receiving portion are engaged. The attachment structure for a wood-based decorative material according to Claim 3.

5. The concave groove is formed over the entire length of the decorative material, and an empty groove portion where the decorative attachment member is not attached is provided at an end of the concave groove. A plugging material for filling the concave groove is attached to the empty groove portion. The attachment structure for a wood-based decorative material according to any one of Claims 1 to 4.

6. A connecting hole for inserting a joint pin is formed on the end face of the decorative material. By inserting the joint pin into the connecting hole, a plurality of the decorative materials can be connected in the longitudinal direction. The mounting structure of the wood-based decorative material according to any one of claims 1 to 5.

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