JPS6126014Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to building materials used for ceiling panels, curtain panels, etc.

Conventionally, natural wood was expensive and difficult to obtain for ceiling boards, curtain boards, etc., so lauan plywood was pasted to a square frame, and then straight-grained thin veneer veneer or straight-grained veneer was printed on top of the plywood. The lauan plywood has been pasted with thin paper to replace it, but the thin veneer and thin paper have no ribs or edges, and the beautiful serrations cannot be seen, and as time passes, insects will come out of the lauan plywood and a white powder will form. They come out and impair functionality and detract from aesthetics.

In order to eliminate the above-mentioned drawbacks of the conventional method, the present invention provides a building material in which an appropriate number of square bars are glued together so that the grain is visible on the outside to make a laminated laminated board, bamboo strips (bamboo sinews) are inserted into the laminated board, and the grain surface is given a floating finish.

Embodiments of the present invention will be described below with reference to the drawings.
In FIGS. 1 to 3, an appropriate number of square bars 1 are glued in order by applying adhesive to their vertical faces 2 and 3 to form a square grid board 4, and the board 4, make thin grooves 5 at appropriate intervals perpendicular to the adhesive surface 3 on the vertical side 4a of 4, insert strip-shaped bamboo strips 6 coated with adhesive into the narrow grooves 5, and then attach the opposite vertical side. The surface 4b is rubbed with a wire brush or the like to make the wood grain uneven, so-called a raised surface, and the raised surface is used as a conspicuous side. The material of the square bars is made of coniferous trees such as cedar, Japanese tsuga, spruce, and northern elegance.Water-based or oil-based paints or dyes are applied to the floating surface as necessary. to give the reddish feel of cedar.

FIGS. 4 and 5 show a case in which round bamboo strips are inserted in place of the strip-shaped bamboo strips in the above embodiment. That is, small holes 7 are made at appropriate intervals in the cross-cut board 4 formed in the same manner as in the above embodiment, perpendicular to the adhesive surface 3, and round bamboo strips 8 coated with adhesive are inserted into the small holes 7. , the front and back surfaces 4a and 4b are subjected to the same floating process as described above.

Incidentally, before gluing the square bars, a small hole 7 may be made and the bamboo strips 8 may be passed through the small hole 7 while bonding the square bars to each other. Also, if the small holes in the first, last, or both square bars are blind holes that do not penetrate, there is an advantage that the bamboo strips and small holes will not be visible when used as curtain boards or transom boards.
Fig. 6 shows a case in which the small holes drilled in both outer square bars are blind holes, and Fig. 7 shows a case in which bamboo strips are inserted in a staggered manner.

Next, a specific example actually produced by the present inventor will be explained.

(1) Use 25 square rods (for example, the crosspieces traditionally used for nailing slate tiles) with 18mm x 18mm corners and a length of 3800mm, and Glue the sides in order with adhesive until the width is approx.
A 450mm laminated square board was made, and on one side of the board, sawn thin grooves 3mm wide and 6mm deep at intervals of 1000mm, and bamboo strips that could fit into the grooves were made. Apply adhesive to the strips, fit and secure them into the narrow grooves, plan the surface opposite to the side where the narrow grooves were provided, and then apply a floating process to obtain a transparent ceiling board.

(2) The width of the vertical plane is 30mm, the thickness is 24mm, and the length is
Drill small holes of 3 mm in the center of seven 3800 mm square rods (for example, the rods traditionally used for ceiling frame picture frames) at intervals of 1000 mm in the length direction, and then make 7 holes. The small hole in one of the square bars is left as a blind hole without being penetrated, and one end of a round bamboo strip coated with adhesive is inserted into the blind hole. A laminated square board with a width of 210 mm was made by inserting the materials one after another, and both the front and back sides and the outer surface of the blind hole side were planed and floated to obtain curtain boards and transom boards.

The building material of the present invention is obtained by sequentially gluing an appropriate number of square bars of coniferous wood with a straight grain surface by applying adhesive on the surface perpendicular to the grain surface, and then attaching an adhesive to the assembled grain board. The painted bamboo strips are inserted at appropriate intervals at right angles to the adhesive surface of the laminated grout board, and the unevenness of the wood grain obtained by embossing the grain surface of the laminated grout board is provided. , it looks like a straight grain of a single board of natural wood. In addition, since flexible bamboo strips are inserted and bonded with adhesive, the bamboo strips fit into the square bars and the entire building material is integrated, making it as strong and durable as a single board of natural wood. When used for ceiling panels, curtain panels, etc., it can expand and contract effortlessly in the same way as a single board of natural wood, even when the indoor temperature and humidity change. Also, unlike bolts or wire, bamboo strips can be worked with ordinary wood knives, so you can freely nail them, carve them, or saw them. The building material of the present invention having such advantages is easy to manufacture and can be provided at low cost.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is an end view of a square bar used in the building material of the invention, Fig. 2 is a partially cutaway perspective view of the building material of the invention, and Fig. 3 is a diagram of the structure shown in Fig. 2. −
4 is a partially cutaway perspective view of another embodiment of the building material of the present invention, and FIG. 5 is a cross-sectional view taken along the line shown in FIG. 4.
A cross-sectional view taken along a line, and FIGS. 6 and 7 are schematic plan views for explaining still other embodiments. 1...Square bar, 2...Right-grained surface, 3...Surface perpendicular to the grained surface 2, 4...Glued grained board, 5...Narrow groove, 6...Bamboo strip, 7...Small Hole, 8...Bamboo strip.

Claims (1)

[Scope of utility model registration request] A suitable number of square rods of coniferous wood with a straight grain surface,
Bamboo strips coated with adhesive are inserted at appropriate intervals at right angles to the bonding surface of the laminated cross-cut board, which is obtained by applying adhesive to the surface perpendicular to the cross-grain surface and bonding them in order. , a building material characterized by having unevenness of the wood grain obtained by applying a floating process to the grain surface of a laminated grain board.