JPS644884B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a decorative board suitable for use as a mirror panel of furniture, and a method for manufacturing the same.

As is well known, for example, overlay plywood is used for decoration on the mirror panels of furniture doors. However, this type of plywood is flat and lacks luxury. Therefore, attempts have been made to increase the added value of furniture by creating irregularities in arbitrary designs, such as by carving the solid board.

However, this type of decorative board is not only difficult to process and difficult to mass produce, but also has significant expansion and contraction in the main direction of its fibers, making it difficult to obtain the desired processing accuracy or shape accuracy, making it troublesome to handle.

On the other hand, as the felling of large-diameter trees has progressed in recent years, it has become difficult to obtain flat plates used for manufacturing wooden furniture and the like from large-diameter trees. Therefore, the current situation is that there is a need to make effective use of small-diameter trees.

This invention has been made in view of the above points, namely, this invention effectively utilizes not only large-diameter wood but also small-diameter wood, eliminates expansion and contraction in the main direction of fibers, and has a wickerwork (Ajiro) shape. The purpose of the present invention is to provide a decorative board that can provide high added value by providing an uneven pattern and a method for manufacturing the same.

Therefore, in order to achieve this object, the decorative board of the present invention is assembled into a plate shape by joining a large number of longitudinal band-shaped first unit plates in the width direction with their main fiber directions aligned. and on one surface of each first unit plate, the second unit plate has a longitudinal direction of each first unit plate so that its main fiber direction intersects with the main fiber direction of each first unit plate. The second unit plates on the adjacent first unit plates are arranged to overlap each other in non-overlapping portions at regular intervals along the direction, and each second unit plate on the adjacent first unit plate is shifted from the adjacent first unit plate. The method for manufacturing a decorative laminate includes the step of forming a flat plate by aligning the main fiber direction of a large number of longitudinal strip-shaped plates and joining them in the width direction; A step of fitting and polymerizing and bonding a large number of horizontal plates with non-overlapping portions at regular intervals on one side of the flat plate so that the main fiber direction thereof intersects with the fiber direction of the flat plate; A step of cutting the arranged flat plate at a constant width along the main direction of the fibers to produce a large number of longitudinal band-shaped first unit plates, and joining each of the first unit plates in the width direction so that adjacent Each second unit plate is a cut portion of the horizontal plate on the first unit plate.
bonding each adjacent first unit plate by shifting the unit plates from each other so that each second unit plate is adjacent to the non-overlapping portion of the adjacent first unit plate,
It is characterized by comprising the following.

The present invention will be explained below with reference to an illustrated embodiment.

FIG. 1 is a front view showing a wardrobe in which an example of the decorative board of the present invention is used as a mirror panel of a hinged door, and its placement, and FIG. 2 is a perspective view showing a part of the decorative board.

Reference numerals 1 and 2 shown in FIG. 1 are a swinging door of a wardrobe and a swinging door placed above it.
7, 8 and side stile 9, 10, 11, 12. As shown in FIG.
are assembled into a plate shape with their main fiber directions aligned and joined in the width direction, and each of the first unit plates 13
On the upper surface, the second unit plate 14 extends in the longitudinal direction of each first unit plate 13 so that its main fiber direction intersects (substantially orthogonally in the embodiment) the main fiber direction of each first unit plate 13. The non-overlapping portions 15 are placed at a constant interval L ₁ along the line and are arranged in an overlapping manner. The second unit plates 14 on the adjacent first unit plates 13 are arranged to be adjacent to the non-overlapping portions 15 of the adjacent first unit plates 13 with mutually shifted positions. .

In detail, the first unit plate 13 and the second unit plate 14 may be made of the same or different wood species, and may be made of useful large-diameter trees or small-diameter trees such as Japanese cypress, cypress, and larch. It has relatively small plate widths L ₂ , L ₃ and plate thicknesses W ₁ , W ₂ that can be produced even if the plate size is small. Specifically, plate thickness
W ₁ is, for example, 6 to 7 mm, and the plate thickness W ₂ is about half of the plate thickness W ₁ . In addition, the board widths L ₂ and L ₃ are determined by the predetermined design of the decorative board, and L ₂ = L ₃ ,
L ₂ ≠ L ₃ may also be true.

The adjacent first unit plates 13, 13 are
As shown in the figure, they are serrated in the width direction, and in the embodiment, they are serrated together using an adhesive 16 using rabbets. Further, each second unit board 14 is
The second unit plate 14 is fitted into a fitting groove 17 formed in the first unit plate 13 via an adhesive 18, and is arranged to overlap by a projection height H. There is.

As the adhesives 16 and 18, adhesives such as vinyl acetate resin, phenol resin, resorcinol resin, or epoxy resin, which have a large adhesive binding force and excellent filling properties, can be used. Further, the above-mentioned decorative boards 3 and 4 are coated with a predetermined protective and decorative coating.

As a result, the decorative boards 3 and 4 can make the reticulated uneven pattern stand out, which gives a semi-permanent three-dimensional effect and luxury, thereby providing higher added value.

By the way, since the first unit material 13 is in the form of a longitudinal band, it is conceivable that expansion and contraction occurs along its longitudinal direction (main fiber direction) due to moisture absorption and moisture release.
Expansion and contraction of the unit material 13 in the longitudinal direction can be prevented by fitting and polymerizing the second unit material 14. Furthermore, the expansion and contraction of the second unit material 14 in the main fiber direction can be ignored since its length is set short. Furthermore, adjacent first unit members 13, 13
The boards are glued together taking into consideration the grain of the wood so that the warping due to moisture absorption and moisture release is reversed and cancelled, and the warping of the flat plate as a whole is extremely small.

From the above, the decorative panels 3 and 4 have high shape and dimensional accuracy, and can be easily fitted into the hinged doors 1 and 2.

Next, a method for manufacturing the above-mentioned decorative board of the present invention will be explained.

3A to 3C show the manufacturing process, and FIG. 2 above shows the completed state.

The one shown in FIG. 3 uses sawn boards obtained from small-diameter wood, for example, in which a large number of longitudinal strip-shaped boards 19 are aligned in the width direction with their main fiber directions aligned as shown in FIG. 3A. A flat plate 20 is made by piecing and assembling the pieces together using an adhesive and pressing them together with a metal or the like. After or before polishing at least the upper surface of the flat plate 20 to make it smooth, a large number of inset grooves 17 are formed in the upper surface of the flat plate 20 so that the main direction of the fibers is perpendicular to the upper surface of the flat plate 20, as shown in FIG. 3B. They are formed in parallel with an interval L ₁ between them, and the horizontal plates 21 are fitted into each fitting groove 17 via an adhesive 18, polymerized and bonded, and then pressed using a press machine or the like. The depth D of the fitting groove 17 is smaller than the thickness W ₂ of the horizontal plate 21, and the upper surface of the horizontal plate 21 protrudes from the flat plate 20 by a protruding height H.
Thus, the main fiber direction of the horizontal plate 21 and the main fiber direction of the flat plate 20 intersect (substantially perpendicular to each other in the embodiment).

Next, as shown in FIG. 3C, the flat plate 20 on which a large number of horizontal plates 21 are arranged is cut at a constant width along the main fiber direction using a circular saw or the like to obtain a large number of first longitudinal strips. Make unit board 13. As shown in FIG. 4, each of the first unit plates 13 has a groove 22 along the longitudinal direction on one of the mating surfaces, and a protrusion that fits into the groove 22 on the other mating surface. A portion 23 is formed, the first unit plates 13 are joined together in the width direction through the adhesive 16, and then pressed together with a metal or the like. At that time, as shown in FIG.
The second unit plate 14 is arranged to be adjacent to the non-overlapping portion 15 of the adjacent first unit plate 13.
Decorative laminates 3 and 4 having a reticulated concave-convex pattern shown in the figure are obtained.

Then, if necessary, the first and second unit plates 1
Sand the surfaces of 3 and 14 and apply a protective and decorative coating.

Note that the width of the horizontal plate 21, that is, the second unit plate 14
It goes without saying that by changing the plate width L ₃ and the interval L ₁ between the first unit plate L ₂ and the non-overlapping portion, it is possible to create a mesh-like uneven pattern of any size. Further, in the above-described embodiment, an example is shown in which the decorative board is used as a mirror panel of furniture, but the present invention is not limited to this, and it can also be used as a panel constituting a wall surface of a room, for example.

According to the invention as described above, a horizontal plate is fitted into a flat plate made of longitudinal strip-shaped plates with non-overlapping portions at regular intervals and polymerized and bonded, and then the longitudinal strip-shaped plates are bonded in a uniform manner along the main fiber direction of the longitudinal strip-shaped plate. Cut the width and make the first
unit plates are made, and the positions of the second unit plates, which are the cut portions of the horizontal plates on the first unit plate, are shifted from each other, and the first unit plate is joined in its width direction, and each of the second unit plates is Since the unit plate is configured to be adjacent to the non-overlapping portion of the adjacent first unit plate, not only large diameter wood but also small diameter wood can be used effectively, and the expansion and contraction in the main direction of the fibers is eliminated to ensure accurate dimensions and shapes. Accuracy can be ensured,
A decorative board with high added value can be obtained by providing a wickerwork (Ajiro)-like uneven pattern, and simple cutting, gluing,
Since it can be made by simply repeating the groove forming process, it has the effect of mass production.

[Brief explanation of drawings]

Fig. 1 is a front view showing a wardrobe in which an example of the decorative board of the present invention is used as a panel for a hinged door, and its placement; Fig. 2 is a perspective view showing a part of the decorative board; Figures A to C and Figure 4 are explanatory diagrams showing the manufacturing process. 3, 4... Decorative board, 13... First unit board, 1
4... Second unit plate, 15... Non-polymerized portion, 17
...Inset groove, 18, 16...Adhesive, 20...
...flat plate, 21...horizontal plate.

Claims (1)

[Scope of Claims] 1. A large number of longitudinal band-shaped first unit plates are assembled into a plate shape by aligning their main fiber directions and joining them in the width direction, and one of the first unit plates is assembled into a plate shape. On the surface,
The second unit plate is fitted with non-polymerized portions at regular intervals along the longitudinal direction of each first unit plate so that its main fiber direction intersects the main fiber direction of each first unit plate. and the adjacent first
A decorative board characterized in that each of the second unit boards on the unit board is arranged so as to be adjacent to the non-overlapping portion of the adjacent first unit board with mutually shifted positions. 2. A process of making a flat plate by joining a large number of longitudinal strip-shaped plates in the width direction with their main fiber directions aligned, and a process of forming a flat plate on one side of the flat plate so that the main fiber direction intersects with the main fiber direction of the flat plate. A process of fitting and polymerizing a large number of horizontal plates with non-overlapping parts at regular intervals, and cutting the flat plate on which the large number of horizontal plates are arranged at a constant width along the main fiber direction to form a large number of longitudinal strips. 1st of
a step of making a unit plate, and joining each of the first unit plates in the width direction thereof, and mutually shifting each second unit plate that is a cut portion of the horizontal plate on the adjacent first unit plate. A step of bonding each adjacent first unit plate so that each second unit plate is adjacent to the non-overlapping portion of an adjacent first unit plate. Production method.