JPS59102042A - Production of ceiling material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a method for manufacturing ceiling materials.

Typical ceilings include a seed ceiling as shown in Fig. 1 and a transparent ceiling as shown in Fig. 2. Seed ceiling 1
In this case, as shown in Figure 1, one end 3 of the ceiling material 2
A recess 4 is provided in the recess 4, into which the opposite end 3' of the adjacent ceiling material is fitted. In the case of a transparent ceiling 5, as shown in FIG. 1 in τ
Recesses 8, 8' are provided, and bellows 9 are fitted into the opposing recesses 8, 8' of adjacent ceiling materials.

There is a method of finishing the surface of these ceiling materials by pasting printed paper on the plywood surface, but since it lacks a natural look, it is usually done by pasting a veneer. In FIGS. 1 and 2, illustration of the projecting plate is omitted for the sake of simplification.

The finishing process for the edges of ceiling materials decorated with veneers is as follows:
Conventionally, this was done in the following way.

First, as shown in FIG.
This method involves bending a chisel.

However, with this method, cracks often occur in the veneer 11 at the bent portions. Next, as shown in FIG. 4, a recess 12 is provided from the back side immediately next to the end surface of the ceiling material base plate lO,
There is a method of folding back along this as shown in Fig. 5, but in this method, the recess 12 is too close to the end surface of the wood.
The folded portion 13 is likely to be chipped. Furthermore, since it is difficult to strictly adhere to the machining dimensions of the recess, the back surface of the ceiling material is uneven, making it difficult to maintain a flat surface, as shown in Figure 5 (the figure shows an example where the dimensions of the folded part are too large) ).

Therefore, when attaching the crosspiece 14 here, it is necessary to separately process it by cutting with a plane or the like in order to correct the level difference on the back surface of the ceiling material, which is a complicated work. In this way, there has been no satisfactory method in the past.

This invention was made in view of the above circumstances, and it is possible to make the surface of the ceiling material and the end surface of the wood with the same material to achieve a simple and good finish, and to manufacture the perforated ceiling and the seed ceiling in the same process. The present invention provides a method for manufacturing ceiling materials that can achieve

That is, in this invention, a recess is formed from the back side in a part slightly inserted from one wood end face of the ceiling material material, the end is bent around this recess, and a reinforcing material is attached to the back side of this bent part and fixed. The first gist is a method for manufacturing a ceiling material for seed ceilings, which is characterized in that a recess into which the opposite end of the ceiling material material can be fitted is formed in the portion where the reinforcing material is attached, and the ceiling material material is A recess is formed from the back side at a portion slightly inward from both ends of the recess, each end is bent around these recesses, and a reinforcing material is attached to the back side of each bent portion to fix it. The second gist is a method for manufacturing a ceiling material for a transparent ceiling, which is characterized by forming a recessed part into which a chiveboard can be inserted in the part where the material is attached. Hereinafter, embodiments of the present invention will be explained in detail with reference to the accompanying drawings.

FIGS. 6 to 10 are explanatory diagrams of each process involved in implementing the present invention. According to this invention, for both the seed ceiling and the transparent ceiling, the only difference is whether the end is processed only at one end or at both ends, so before the end face recess processing step (Figs. 6 to 8) are commonly explained. First, plywood 10K as before.

A veneer 11 is pasted on to serve as a ceiling material. Next, (3) Floating, sanding, and painting for veneer 11.

Surface finishing is done by waxing, etc. After this,
As shown in FIG. 6, a recess 17 is formed from the back side of the ceiling material material 15 at a portion slightly inserted from the wood end surface 16. Recess 1
7 is normally formed so that when the end 18 is bent as shown in FIG. 8, the end 18 is perpendicular to the ceiling surface 19. That is, the angles θl and θ2 from the center line of the recess are each 45@. Further, since an end face recess for a component ceiling or a transparent ceiling is formed in the end portion 18 as described later, the four parts 17 do not need to form such an end face recess in the end portion 18. It is formed in a position that makes it possible. Next, as shown in FIG. 7, adhesive 20 is applied to the area from the recess 17 to the left and right sides thereof. The adhesive 20 is
Generally, hot-melt types and quick-drying types are preferably used. After applying the adhesive, the end portion 18 is bent around the recess 17 as shown in FIG. At this time, a reinforcing material 21 is attached to the back side of the bent portion and fixed with the adhesive 20. This type of end processing is suitable for component ceilings (4
) In the first invention for making a ceiling material, ceiling material material 1
In the second invention for making a ceiling material for a perforated ceiling, it is applied to both ends of the ceiling material 15.

In this way, by bending the end portion 18 of the ceiling material material 15 so as to protrude to the back side and applying the reinforcing material 21 to the back side, the end portion of the ceiling material becomes strong, and the end surface is fixed to the ceiling. It is finished with the same material as the surface.

After this, as shown in FIG. 9 and @10, the end face recess 22,
By performing the forming process of 23, the ceiling material for seed ceilings 2
4 and a ceiling material 25 for a transparent ceiling are obtained. That is, the veneer 11 constituting the ceiling material material. Recesses 22 and 23 are formed from the end face side from the base plate 10 to the reinforcing member 21. The end face recess formation process is performed using a ripper or the like.

In the ceiling material 24 for seed ceilings, the ends of the adjacent ceiling materials (the ends without the above-mentioned end processing) are in the recessed portion 2.
As shown in Figure 9, the ceiling material □
The hole is made large enough (thickly) to fit the opposite end of the material 15, but in the ceiling material 25 for a transparent ceiling,
Since the recess 23 only needs to be fitted with a thin shaft, the recess 23 can be formed small (thinly) as shown in FIG. 10.

Since the method for manufacturing a ceiling material according to the present invention has the above configuration, the end portion of the ceiling material has the same finish as the surface of the ceiling material. Therefore, the beauty of the ceiling will not be spoiled due to the exposed wood end surface. There is no substantial difference in the processes for ceiling materials for seed ceilings and ceiling materials for open ceilings, except for whether the end processing is done over both ends or only on one end. Materials can be manufactured using the same lie υ, making production costs economical. When making a recess for bending very close to the wood end face as shown in Fig. 4, the tip is likely to chip when making the recess, but in this invention, the recess is machined a little further into the wood end face. Therefore, it is difficult to cause chipping. Conventionally, as shown in FIG.
Since the crosspiece 14 is placed on top of the crosspiece 3, when an uneven level occurs, processing is required to flatten it. In this invention, when processing the recess for bending the end,
Due to variations in processing dimensions, the height h of the bent end may not be constant as shown in FIGS. 11 and 12. However, in the present invention, since the reinforcing member 21, which also serves as a crosspiece, is fixed to the back side of the bent end portion 18, there is no need to modify such dimensions.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway vertical sectional view showing the seed ceiling, Figure 2
The figure is a partially cutaway vertical cross-sectional view of a transparent ceiling, Figure 3 is a partial vertical cross-sectional view of the state in which the veneer is bent against the end surface of the ceiling material, and Figure 4 is the wooden end surface of the ceiling material. FIG. 5 is a partial longitudinal sectional view showing a recess provided very close to the recess, and FIG. The figures are process explanatory diagrams of the manufacturing method of the ceiling material according to the present invention, in which Fig. 6 is a partial vertical cross-sectional view of the vicinity of the wooden end surface of the ceiling material material in which the concave portion for bending the end is formed, and Fig. 7 is A partial vertical sectional view showing the state in which adhesive is applied to the bottom (7) in Figure 6, and Figure 8 shows the reinforcing material fixed to the back side by bending the end around the concave part in Figure 7. Fig. 9 is a partial vertical cross-sectional view showing the state of the ceiling material for seed ceilings obtained by the manufacturing method according to the present invention, and Fig. 10 is a partial vertical cross-sectional view showing the ceiling material obtained by the manufacturing method according to the present invention. FIGS. 11 and 12 are partial vertical cross-sectional views of the ceiling material for transparent ceilings, and are explanatory diagrams showing the folded state of the ends of the ceiling material. 15... Ceiling material material 16... Wood end surface 17...
Recessed portion 18... End portion 2o... Adhesive 21...
Reinforcing material 22.23... End face recess 24... Ceiling material for seed ceilings 25... Ceiling material for transparent ceilings Agent Patent attorney Takehiko Matsumoto (8) 11 Figure 4 Figure 11 Figure 12 figure

Claims (2)

[Claims] (1) Form a recess from the back side of the ceiling material in a part that is slightly inward from one of the wood ends, bend the end around this recess, attach a reinforcing material to the back of this bent part, and then fix it. . A method for manufacturing a ceiling material for a seed ceiling, characterized in that a recess into which the opposite end of the ceiling material material can be fitted is formed in the portion where the reinforcing material is attached. (2) Form recesses on the back side of the ceiling material slightly inward from both end faces, bend each end around these recesses, and add reinforcing material to the back side of each bent part. A method for manufacturing a ceiling material for a transparent ceiling, which comprises fixing the reinforcing material, and then forming a recess into which a chimney can be inserted into the part where the reinforcing material is attached.