JPS5830125B2 - Manufacturing method of laminated column material - Google Patents

Description

[Detailed description of the invention] The present invention relates to a method for manufacturing a laminated column material.

The inventor of the present invention previously developed a method for manufacturing laminated column materials,
It was disclosed in Patent Application No. 11867 of 1978 (Patent Publication No. 63112 of 1975, Patent Publication No. 7844 of 1978).

The method involves applying adhesive to each of the core materials, the size of which has been selected in advance so that when assembled, it will form a predetermined prismatic shape on the back surface of the decorative board in which multiple parallel ■-shaped grooves have been bored. Then, stack the core materials without worrying about any slight misalignment between them, and then fold the ■-shaped grooves so as to wrap the core material with the decorative board to assemble the core materials into a predetermined shape.At the same time, place the decorative board on the outer surface of the core material. The process consists of adhering the decorative board, and then applying pressure from the outer surface of the decorative board to solidify the whole into a columnar shape.

However, according to this method, as a decorative board, for example, 0.
When using a natural wood decorative veneer with a thickness of approximately 5y++m, the decorative board may crack when V-shaped grooves are cut into the decorative board, or when the formed V-shaped grooves are bent and pressure is applied from the outside of the decorative board. etc., and the unevenness of the core material often forms on the outer surface of the decorative board, often impairing the aesthetic appearance of the outer surface.

The present invention has been made in view of the above circumstances, and it is possible to prevent cracks from occurring even if the decorative facing material adhered to the outer surface of the core material is thinned, and to reduce the unevenness of the core material to the surface of the facing material. put out,
Button Yohison is a laminated pillar material that can produce a large amount of pillar material that can be used for pillar materials that have a beautiful appearance and are made of thin natural wood decorative veneer, which is a cheaper material not only as a core material but also as a facing material. The purpose is to provide a manufacturing method.

Hereinafter, the present invention will be described in detail according to embodiments shown in the drawings.

1. As shown in Fig. 1, the core component material is pre-formed so that it becomes a rectangular prism core material 1 as a whole when assembled without any gaps, regardless of its size, that is, its cross-sectional shape. Prepare 1a.

The core component material 1a may be formed by cutting thinned wood such as cedar or cypress into a predetermined shape, and may be of any shape as long as it forms the core material 1 of a rectangular prism as a whole when assembled. It may be.

On the other hand, as shown in FIG. 2, a facing material 2 such as a decorative natural wood veneer (commonly known as a veneer) having an appropriate width and length is prepared.

The thickness of the covering material 2 is about 0.1 rrarL to 1.2
The throat level is appropriate.

Then, as shown in FIG. 2, a strong and flexible backing sheet 3 made of synthetic resin nonwoven fabric, paper, etc. is attached to one surface of the covering material 2, and a Paper,
A highly flexible flexible sheet 5 such as cloth, residue, paper, or cloth adhesive tape is attached.

Then, as shown in FIG. 2, the adhesive sheet 3 of the covering material 2 is
A plurality of V-shaped grooves 4 having a V-shaped cross section are cut in parallel toward the flexible sheet 5 from the surface to which it is attached.

The V-shaped groove 4 is formed by using a blade such as a circular saw or cutter having a predetermined cutting edge angle, and the ■-shaped groove 4 is formed to reach the flexible sheet 5 but not to damage it. do.

Then, as shown in FIG. 3, the facing material 2 is pressed onto the lower mold 101 with the backing sheet 3 side facing upward, and placed at a predetermined position in the groove that forms a space corresponding to the shape of the desired laminated column material. Adhesive is applied to each of the lying core material constituent members 1a and piled up.

At this time, it is not necessary to pay much attention to the gaps or slight positional deviations between the core constituent members 1a.

Next, adhesive is applied to the backing sheet 3 button and the surface of the adhesive sheet 3 side of the facing material 2, and the facing material 2 is attached using the flexible sheet 5 as a guide using the V-shaped groove 4 as shown in FIG. It is bent, wraps around the core component 1a from the left and right sides, presses it, and also presses the top and bottom sides to form the facing material 2.
When bonded to the circumferential surface of the core component 1a, the core component 1a moves vertically and horizontally and comes into close contact with each other, forming the core material 1 of the square columnar material, and the facing material 2 is adhered to the outer surface of the core component 1a. It almost becomes a single laminated column material A.

At this time, if the upper mold 102, which has a groove that forms a space corresponding to the shape of the desired laminated column material, is heated and pressed from the surrounding side surface and the adhesive is solidified, the predetermined laminated column material A is obtained. When the flexible sheet 5 is peeled off from the surface, the laminated column material A as shown in FIG. 4 is completed.

Above, we have explained about square prisms, but other shapes of square prisms,
The same applies to pentagonal prisms and other polygonal prisms.

That is, the core material components may be appropriately selected so that the core material components are assembled to form a predetermined core material.

As described above, according to the present invention, only the facing material attached to the outer peripheral surface of the core material through the backing sheet is polished, so that it is possible to obtain a pillar material that has a beautiful appearance and is no different from natural wood. Moreover, even if a thin board such as natural wood veneer is used as the facing material, the backing sheet is attached in advance, so even if pressure is applied from the outside of the facing material, there will be no wrinkles or tears in the facing material. It can be adhered to the core material beautifully without any formation, and the backing sheet acts as a cushioning material so that the unevenness of the core material does not appear on the outer surface of the column material.

As a manufacturing method, when stacking the core components on the facing material, there is no need to pay attention to the gaps or positions between the core components, and it is only necessary to stack them, so it is extremely efficient. Press the button into the ■-shaped groove so as to wrap the core material with the facing material, bend the facing material using the flexible sheet as a guide, and assemble the core material into a prismatic core material. Since the facing material is attached to the outer circumferential surface of the cylindrical column via a lining sheet to form a prismatic material, combined with the above points, the work can be carried out efficiently.

Furthermore, since thinned wood, unused wood chips, and the like can be used as the core material, it is possible to reduce the cost of the pillar material.

Furthermore, commercially available paper tape, cloth tape, etc. can be used as the flexible sheet, which is convenient.

As described above, according to the present invention, it is possible to obtain a beautiful pillar material that is extremely efficient and low cost, and whose appearance is no different from that of natural wood, and its practical effects are extremely impressive.

[Brief explanation of the drawings] Fig. 1 is a perspective view of an example of the core component material, Fig. 2 is a perspective view of the facing material that is buttoned during the manufacturing process, Fig. 3 is a cross-sectional view of the button that is buttoned during the manufacturing process, and Fig. 4 The figure is an end view of the completed laminated column material. DESCRIPTION OF SYMBOLS 1... Core material, 1a... Core material configuration diagram, 2... Covering material, 3... Backing sheet, 4... V-shaped groove, 5... Flexible sheet.

Claims (1)

[Claims] 1. A step of adhering a backing sheet to one surface of the facing material, and adhering a flexible sheet to the position corresponding to the position where the V-shaped groove is formed on the other surface, and Grooving is a process in which multiple V-shaped grooves with a cross section of ■ shape are drilled in parallel with a blade from the backing sheet side into the facing material, toward the flexible sheet attached to the material. At a predetermined position within the groove of the lower mold having a groove forming a space corresponding to the shape of the material,
The process involves placing the facing material with the backing sheet side facing upward, and applying adhesive to each of the core material components, each of which has been pre-selected in size so that it will form a predetermined prismatic shape when assembled. A process of stacking the facing material on the side surface of the lining sheet, and folding the facing material into the V-shaped groove so as to wrap the core material with the facing material and assembling the core material to form a prismatic core material. At the same time, the process of attaching the facing material to the outer peripheral surface of the core material via a backing sheet, and the process of attaching the facing material to the outer peripheral surface of the core material using an upper mold having a groove that forms a space corresponding to the shape of the desired laminated column material. A method for manufacturing a laminated column material, which is characterized by comprising a step of compressing and solidifying an adhesive, and a step of peeling a flexible sheet from the outer surface of the facing material. 2. The method for manufacturing a laminated column material according to claim 1, wherein the facing material is a decorative natural wood veneer. 3. The first claim that the backing sheet is a non-woven fabric
Loss of pears in the cabinet or laminated pillar material described in paragraph 2. 4. The method for manufacturing a laminated column material according to claim 1, 2, or 3, wherein the core material is in the shape of a square column. 5. The flexible sheet is a highly flexible material such as paper, cloth, paper, or adhesive tape made of paper or cloth. Claims 1, 2, 3, or 4 The manufacturing method of the laminated column material described.