JPS6143162B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a composite mosaic parquet board.

Conventional composite mosaic parquet boards are very commonly made by arranging small rectangular pieces of wood (component pieces of mosaic parquet) closely vertically and horizontally, but hard bonding a rigid backing board such as inorganic porcelain on the back side. However, with such composite mosaic parquet boards, if the base is not almost completely flat, there will be a difference in the joints, making the installation time-consuming.
Due to the difference in expansion coefficient between the upper layer of wood pieces and the lower layer of backing board that are firmly joined to each other, deformation may occur after installation, so it is currently not widely used for flooring.

The method for manufacturing a composite mosaic parquet board of the present invention can solve the above problems and provide a composite mosaic parquet board that can provide cushioning properties, soundproofing properties, and stability in position when used as a floor. In addition, the composite mosaic parquet board can be manufactured easily and efficiently. This invention is also applicable to the application/patent application No. 86121/1986 filed by this applicant
This is a further improvement of the invention related to (see Publication No. 204265).

The manufacturing method of the present invention includes a step of arranging a large number of rectangular wood pieces closely in the vertical and horizontal directions so that the overall planar shape forms a rectangle, a step of temporarily fixing the arranged state of the large number of arranged wood pieces, A step of superimposing a mesh sheet over almost the entire surface of one side of the arranged wood pieces, a step of uniformly supplying a foamed urethane resin liquid to the mesh sheet, and an uneven pattern applied to the mesh sheet and the foamed urethane resin liquid layer. It is characterized by comprising the steps of placing a formwork, integrating the mesh sheet and the foamed urethane resin liquid layer, and solidifying them while forming an uneven pattern on their surfaces, and removing the formwork and temporary fixing. shall be.

The present invention will be explained below based on the drawings.

FIG. 1 shows a state in which a large number of rectangular pieces of wood 1, that is, constituent unit pieces of a mosaic parquet, are closely arranged vertically and horizontally on a conveyor or the like of a production line. The small pieces of wood 1 are arranged in a rectangular shape with the end faces of each piece being brought into close contact with each other so that the overall planar shape is a suitable size for construction, but the pattern formed by the arrangement of the small pieces of wood is that of the illustrated example. It is not limited to , and can be determined arbitrarily.

When a large number of small pieces of wood 1 are arranged as described above,
Temporarily fasten so that the arrangement state is maintained. FIG. 2 shows an example of the temporary fixing means. In this example, adhesive tape 2 is attached to one side of the arrayed wood pieces 1 (this side will become the surface when the product is made) to maintain the arrayed state. It can be temporarily fixed by any other means such as surrounding it with a suitable frame.

The temporarily fixed arrayed wood pieces 1 are shown in Figures 3 and 4.
As shown in the figure, turn it upside down and place it in place, and cover almost the entire top side (this side will be the back side when it is made into a product) with cotton, soft synthetic resin, or any other flexible material. The mesh-like sheets 3 made of the above are overlapped. The mesh sheet 3 is wound into a roll 3
It is convenient to pull it out from a and cut it to the required length. Since this sheet 3 will be impregnated with a foamed urethane resin liquid in the next step to fix the arranged wood pieces 1 to each other, it is particularly made in a mesh shape so that the foamed urethane resin liquid can be spread well over the entire surface of the sheet 3. Use the one.

After the mesh sheet 3 is superimposed on one side of the arrayed wood pieces 1 as described above, as shown in FIG. 5, the foamed urethane resin liquid 5 is uniformly supplied to each sheet 3 through the nozzle 11 or the like. It is preferable to spray the foamed urethane resin liquid 5 between the nozzle 11 and the materials 1 and 3 while moving them relative to each other. However, in each process including the supply process of the foamed urethane resin liquid 5, the materials 1 and 3 to be processed are generally processed on the conveyor of the production line, so the moving materials 1 and 3 are , nozzle 1
Usually, one side is installed in a predetermined position. Of course, other means such as application with a roller or dipping of the mesh sheet may be used for supplying the foamed urethane resin liquid 5 to the mesh sheet 3. Further, the supply can be performed before the mesh sheet 3 is superimposed on the arranged wood pieces 1, or
After supplying the foamed urethane resin liquid 5 onto the arranged wood pieces 1, the mesh sheet 3 may be superimposed on the resin liquid 5.

After the foamed urethane resin liquid 5 is supplied to the mesh sheet 3 on the arranged wood pieces 1, as shown in FIG. Then, a formwork 7 is placed on the foamed urethane resin liquid layer 5.
The inner surface of the formwork 7 is provided with a mesh pattern or other uneven pattern (not shown) so that the uneven pattern can be formed on the surface of the resin layer 5 when the foamed urethane resin layer 5 is solidified. be. Note that a mold release agent may be applied to the mold frame 7 instead of the mold release sheet 6 described above. The foamed urethane resin liquid 5 starts foaming, flows through the mesh of the mesh sheet 3, and becomes integrated with the sheet 3, while being restrained by the formwork 7 as shown in FIG. It solidifies and joins the pieces of wood 1 together. At this time, a mesh pattern or other uneven pattern (not shown) is formed by the mold 7 on the outer surface of the layer consisting of the mesh sheet 3 and the foamed urethane resin 5.

After a suitable curing period (usually about 1 hour), the formwork 7, release sheet 6 and temporary fixing means are removed, and as shown in FIG. A product 8 is obtained, on which a layer consisting of urethane foam resin 5 and foamed urethane resin 5 is applied, and an uneven pattern is formed on the outer surface of the layer.

The composite mosaic parquet board 8 shown in FIG. 8 can be made into a final product, but if necessary, the surface of the mosaic parquet board 8 may be polished and coated with paint such as varnish. Appropriate surface treatment can be carried out, and as shown in Fig. 9, appropriate end surface treatment can be carried out, such as cutting grooves 9 and protrusions 10 for fitting into adjacent mosaic parquet boards during construction. can be applied.

The composite mosaic parquet board manufactured by the manufacturing method of the present invention described above has a large number of small pieces of wood 1 lined with a layer in which a mesh sheet 3 and a foamed urethane resin layer 5 are integrated. Because they are bonded together, the tensile strength is extremely high, and even if the base material is not necessarily flat like a concrete base, it can be bent slightly by the butt line between the small pieces of wood 1 and 1 and attached to the base. This makes floor construction much easier and the finished product extremely good. In addition, even if each small piece of wood 1 expands and contracts after construction, there is almost no chance of separation between the bottom layers 3 and 5, which can expand and contract together, so the floorboards will not become distorted and will remain stable for a long period of time. Provide a floor surface. Furthermore,
This mosaic parquet board finished as a floor has a mesh sheet 3 and a foamed urethane resin layer 5 integrated on its lower surface, and the outer surface of the foamed urethane resin layer 5 has an uneven pattern. Because of this, it not only has excellent cushioning and soundproofing properties, but also ensures that it remains in its original position without shifting between it and the base material, making it extremely advantageous for use as floorboards in apartment complexes, etc. .

Further, according to the manufacturing method of the present invention, the foamed urethane resin layer 5 constituting a part of the backing layer simultaneously bonds a large number of small pieces of wood 1 to each other during the lamination process, and the formwork 7 is made of a mesh sheet. 3 and the foamed urethane resin layer 5 together with the small wood piece 1, an uneven pattern is formed on the outer surface of the foamed urethane resin layer 5, so the composite mosaic parquet board can be manufactured easily and efficiently. and achieve cost reduction.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing the process of arranging small pieces of wood in the method for manufacturing a composite mosaic parquet board of the present invention, FIG. 2 is a plan view showing the temporary fixing process, and FIGS. A side view and a plan view showing the sheet stacking process, Fig. 5 is a side view showing the foaming urethane resin liquid supply process, Fig. 6 is a side view showing the process of placing the formwork, and Fig. 7 is the mesh-shaped Fig. 8 is an enlarged partial side view showing a state in which the sheet and the foamed urethane resin liquid layer are integrated; Fig. 8 is an enlarged partial side view of the product composite mosaic parquet board; Fig. 9 is an enlarged partial side view of the product shown in Fig. 8. FIG. 3 is a plan view showing the end face processed. 1...Small wood piece, 3...Mesh sheet, 5...
Foamed urethane resin liquid or foamed urethane resin layer, 7
...Formwork.

Claims (1)

[Claims] 1 A step of arranging a large number of rectangular small pieces of wood 1 closely in the vertical and horizontal directions so that the overall planar shape forms a rectangle, a step of temporarily fixing the arrangement state of the large number of arranged small pieces of wood 1, one side of the arranged small pieces of wood 1 a step of superimposing the mesh sheet 3 on almost the entire surface of the mesh sheet 3, a step of uniformly supplying the foamed urethane resin liquid 5 to the mesh sheet 3, and a concavo-convex pattern on the mesh sheet 3 and the foamed urethane resin liquid layer 5. It includes a step of placing the formwork 7, integrating the mesh sheet 3 and the foamed urethane resin liquid layer 5, and solidifying them while forming an uneven pattern on their surfaces, and a step of removing the formwork 7 and temporary fixing. A method for manufacturing a composite mosaic parquet board.