JPS5961654A - Constitutional member and production thereof - 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 structural member suitable for use in building materials such as surrounding edges of ceilings and frames such as door frames.

Conventional opening frames for ceiling edges, doorways, etc. are made of wood due to its workability, but in the current situation where high-quality wood is difficult to obtain, it is possible to obtain luxurious and beautiful items at low cost. It was difficult.

Furthermore, since the frame is heavy, it is difficult to transport the frame after it has been formed into a predetermined frame.

The present invention has been made in view of the above circumstances, and provides a structural member that has a luxurious and beautiful exterior with a wooden feel, is lightweight, has excellent workability, and is easy to install. The aim is to provide these products in large quantities.

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

FIG. 1 is a perspective view of a frame body made up of structural members according to an embodiment of the present invention, and FIG. 2 is an enlarged sectional view of the main parts thereof.

(1) A board made of a wood-based material such as tri, plywood, particle board, or hardboard;
1) is a sandwiching sheet made of a strong and flexible synthetic resin fiber non-woven fabric, etc., which is attached to the surface of the sandwiching sheet (2); It is a facing material such as thin veneer. That is, the sandwiching sheet (2) is bonded between the substrate (1) and the facing material (8) using an adhesive.

The substrate (1) is provided with a sandwiching sheet (2) as shown in FIG.
), but do not damage it, multiple V-shaped bending grooves (4a) (4b) are opened in parallel using a groover such as a cutter, and at the bending grooves (4a) (4b). The sandwiching sheet (2) and the facing material (8) can be bent freely.

Then, bend the sandwich sheet (2) and the facing material (3) at the bending grooves (4a) and (4b), and fold the sandwich sheet (2) so that the - bend grooves (4a) are closed. and the facing material (8) are bent and joined, and the other bending groove (4b) Vi
Conversely, it is expanded to form a bent plate (5).

In this example, both ends of each of the plurality of bending plates (5), which are abutting end faces, are finished into inclined end faces having a required angle in order to form a predetermined frame.

Next, a plurality of such bent plates (5) are brought together at both ends to form a polygonal picture frame, and these bent plates (5) are shaped into such a predetermined shape as shown in FIG. It is loaded into a mold (6) and formed into a predetermined shape. That is, it is loaded into the female mold (6a) so that the facing material (8) side is in contact with it. At this time, in order to prevent the foam (7) from spewing out from the gap at the abutting part of the bending plate (5), f-ping is applied with a synthetic resin sheet, cellophane tape, adhesive paper, etc. It is best to close the area and make the bending plates (5) come into close contact with each other.

The inner surface of the female mold (6a) has an uneven surface corresponding to the shape of the bending plate (5).

Then, a male mold (6b) corresponding to the female mold (6a) is
) are joined at the parting and a predetermined gap (8
) After this preparatory step, the foam (7) is injected into the foam (7) using a syringe (9)
For example, in the case of urethane foam molding, chemicals that form urethane, such as polyisocyanate and polyol, which are the main materials of urethane, as well as blowing agents, catalysts, stabilizers, etc., are injected into predetermined voids (8). As shown in FIG. 5, it is sufficient to foam the foam into a predetermined shape to form a foam (7), and then adhere it to the substrate (1) of the bending plate (5). In addition, the substrate (1
) may be provided with an adhesive layer in contact with the foam (7) to increase its adhesive strength. or,
Depending on the material of the foam (7), a heating step or a cooling step may be added in which steam is flowed into the mold (6) to heat the mold (6) and the like.

In this way, when the foam (7) is foam-molded and fixed to the bending plate (5), the male mold (
6b) is separated from the female mold (6a), and the finished product is taken out from the female mold (6a).

Note that the foam (7) is attached to a bending plate (5) as shown in FIG.
) may be fixed over the entire surface of the substrate (1) side,
In addition, as shown in Fig. 8, a wooden prismatic material is fitted onto the back surface of the substrate (1) of the bending plate (5), by fixing it only to the same sides of the bending plate (5), for example, at the four corners. However, the door may be attached using a hinge or the like.The present invention is not limited to the above embodiments, and can be modified in various ways.

For example, the shape of the bending plate may be changed depending on the opening position of the bending groove, or, as shown in FIG. 9, dovetail grooves [ 101 may be formed.

In addition, as shown in Figure 1O, which shows the building materials used around the edges of the ceiling, the shape of the bending plate is also made by cutting a U-shaped or U-shaped bending groove into the board (1) using a cutter, circular saw, etc. (4) are arranged in parallel, and the bent grooves (4) are closed,
It may also be shaped like an arc. When the part where such thin bending grooves (4) are arranged side by side is curved and loaded into the mold (6), the bending grooves (4) are joined in places with hot melt adhesive before that. However, it may be formed into a predetermined shape. It is advisable to attach such a turning edge to the corner of the boundary between the ceiling and the wall, as shown in FIG. 11.

Since the present invention is configured as described above, when it is installed on the ceiling, for example, only the facing material is visible from the outside, and the component has an appearance similar to that of a cut product made of natural wood. It is easy to use, and the bending plate can be changed in various ways.
Along with this, the foam can also be deformed, and since the back side of the bending plate is hardened with foam, it is reinforced and has increased strength. Moreover, it is lightweight, so it can be easily transported and processed into frames, etc. It is easy to install and can be easily installed.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a frame made of structural members according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the main parts thereof, FIG. 8 is a cross-sectional view of the bent plate in an unfolded state, and 6 to 6 are sectional views showing the manufacturing process of the embodiment, FIG. 7 is a rear perspective view of the embodiment, FIG. 8 is a separate rear perspective view, and FIG. 9 is a further modified example. FIG. 1θ is a sectional view of a bending plate of another embodiment, and FIG. 11 is a perspective view showing its usage. (1) (1)...substrate, (2)... sandwiching sheet),
(8) ... facing material, (4a) (4b) ... bending groove,
(5)...Bending plate, (6)...Mold, (7)...
Foam, (8)... void, (9)... syringe. Patent Applicant Touma Hardboard Co., Ltd. Agent Patent Attorney Oka 1) Zen Kei Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] 1. A sandwiching sheet is attached to one surface of the substrate, and a covering material is attached on the surface of the sandwiching sheet, and the sandwiching sheet is reached from the other surface of the substrate. A plurality of parallel bending grooves that do not cause damage are formed, the sandwiching sheet is bent at each bending groove portion to form a bending plate, and a foam is fixed to the substrate side of the bending plate, Component 0 2 The component according to claim 1, wherein the substrate is made of plywood, and is configured to maintain a predetermined shape. 8 Claim 1: The facing material is a thin veneer of natural wood.
The component according to item 2 or item 2. 4 Claim 1, in which the sandwiching sheet is a nonwoven fabric;
The component according to item 2 or item %'8. 5 Claim 1, wherein the bent groove has a V-shaped cross section;
Component member according to item 2, item 8 or item 4. 6 Claim 1, wherein the bending groove has a U-shaped cross section;
The component according to item 2, item 8, item 4, or item 6. 7. Claim 1, in which the foam is made of fretane;
Component member according to item 2, item 8, item 4, item 5, or item 6. 8 A process of attaching a sandwich sheet to one surface of the substrate, a process of further attaching a covering material to the surface of the sandwich sheet, and a folding process that reaches the sandwich sheet from the other side of the substrate but does not damage it. A process of carving a plurality of parallel curved grooves, a process of bending the sandwiching sheet and the facing material at each bending groove part to form a bent plate, a process of fitting it into the mold, 1. A method for manufacturing a structural member, comprising the steps of: fixing a foam to a substrate by foam molding in a gap on a side surface of a substrate of a bent plate fitted in the substrate. 9. The method of manufacturing a component according to claim 8, wherein the substrate is plywood. 10 The method for manufacturing a component according to claim 8 or 9, in which the facing material is a thin veneer of natural wood O 1! The method for manufacturing a component according to claim 8, 9, or 10, wherein the sandwiching sheet is a nonwoven fabric. 12 Claim 8, wherein the bending groove has a 7-shaped cross section
A method for producing a component according to item 9, item 10, or item 11. 13. Claim 8, wherein the bending groove has a U-shaped cross section.
12. A method for manufacturing a component according to item 9, item 10, item 11, or item 12. 14 The foam is made of urethane Claim 8
Term, 9th term, 10th term, ti term, 12th term 1st
9. A method for manufacturing the component according to item 8.