JPH03244533A - Panel material - Google Patents

Abstract

PURPOSE:To easily produce a panel material in which a facing is not peeled by folding one part of the facing to the rear side and forming anchor pieces at a plurality of parts of at least one side of facing. CONSTITUTION:Anchor pieces 11 are formed in the proper parts of the respective facings 2. The anchor pieces 11 are formed by firstly forming the cruciform notches 12 in the prescribed parts of the facings 2 and then folding these notched parts to the rear side along an alternate long and short dash line by a folding machine, etc. These anchor pieces 11 are buried into the expandable material 5 and function as the anchors of the facings 2. The respective anchor pieces 11 are made independent from the adjacent anchor pieces 11 and a small chamber such as a honeycomb structure is not formed. Therefore flow of the expandable material is not interrupted and the expandable material 3 can be spread on the whole face of the facings 2. Further these anchor pieces 11 are preferably tilted for the facings 2 in order to enhance the function of the anchor.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to refrigerator wall materials, partition materials, roofing materials,
It relates to panel materials for use as building materials such as boards.

[Prior Art] There have been various types of panel materials used for wall materials of refrigerators, etc., but the representative one is the 7th type.
As shown in FIG.

The panel material 1 shown in FIG. 7 includes a surface material 2 made of a thin sheet of glass fiber, nonwoven fabric, aluminum foil, paper, etc., and a surface material 2 injected between two sheets of the surface material 2 arranged parallel to each other. It is composed of a solidified foamable material 3. Here, the term "foamable material" refers to materials such as foamed resin and foamed concrete.

The panel material 5 shown in FIG. 8 has the structure shown in FIG. 7 in which a honeycomb-structured core material 6 is interposed between the surface materials 2 to increase the strength.

[Problems to be Solved by the Invention] However, the conventional panel materials as described above have technical problems to be solved.

That is, in the panel material 1 shown in FIG. 7, depending on the type of the surface material 2 and the foamable material 3, mutual adhesion may be insufficient.
There is a problem that the surface material 2 is easily peeled off.

Although the panel material 5 shown in FIG.
It is very time-consuming to manufacture it because it needs to be filled without any gaps.

Therefore, the main object of the present invention is to provide a panel material that is easy to manufacture and free from the risk of peeling of the surface material.

[Means for Solving the Problem] In order to achieve the above object, the panel material according to the present invention has the following features:
Consisting of two surface materials arranged parallel to each other at a constant interval, and a foamable material injected into the space between the surface materials and solidified, the foam material is applied to a plurality of locations on at least one of the surface materials. A feature is that an anchor piece is formed by bending a part of the surface material to the back side.

[Function] In the above configuration, the anchor piece formed on the surface material is embedded in the foamable material, and peeling of the surface material can be prevented.

[Example 2] Preferred embodiments of the panel material according to the present invention will be described in detail below with reference to the drawings, in which the same reference numerals are used for the same or corresponding parts.

As shown in FIG. 1, the panel material 10 according to the present invention is made by arranging two sheet-like surface materials 2 such as paper sheets or aluminum foil sheets at a constant distance from each other in the same way as in the past. It is formed by injecting the foamable material 3 into the space and solidifying it.

Anchor pieces 11 are formed on each surface material 2 at appropriate locations. This anchor piece 11 is made by first making a cross-shaped cut 12 at a predetermined location on the surface material 2, as shown in FIG. It is formed by The anchor piece 11 is embedded in the foamable material 3 and functions as an anchor for the surface material 2. Each anchor piece 11 is independent from the adjacent anchor piece 11 and does not form small chambers such as a honeycomb structure, so the foamable material 3 can be spread over the entire surface of the surface material 2 without interfering with the flow of the foamable material. be able to. In addition, in order to enhance the anchor function, it is preferable to make the anchor piece 11 slope with respect to the surface material 2.

Such panel material 10 can be manufactured one by one with predetermined dimensions by a so-called batch manufacturing method. It also becomes possible to manufacture continuously on a line like the one shown in the figure. That is, from the two upper and lower thin sheet coils 20, thin sheets 2' serving as surface materials are fed out and supplied to the corresponding anchor piece processing devices 21, respectively. The anchor piece processing device 21 includes a notch forming machine 22 and a bending machine 2.
3 and the thin sheet 2' passes through this, thereby forming the anchor piece 11. Anchor piece processing device 2
1, the foaming material 3 is placed between the upper and lower thin sheets 2' by the foaming material filling device! 24.

Thereafter, the upper and lower thin sheets 2' are arranged at predetermined intervals and sent to an after-cure heating device 25, and finally cut into a predetermined size by a cutting device 26 to complete the panel material 10.

In the above embodiment, anchor pieces 1 are attached to both surfaces of the surface material 2.
1, but depending on the situation, only one of them may be used.

Further, in the above embodiment, the cross-shaped cut 12 in the surface material 2
Although four triangular anchor pieces 11 are formed at the same time by forming and bending them, the number and shape of the anchor pieces that are formed at the same time are not limited to this. For example, as shown in FIGS. 4 and 5, one square or triangular anchor piece 11'11'' may be formed for each anchor piece formation location.Furthermore,
Depending on the type of the surface material 2, it may be possible to form an anchor piece by bending a part of the surface material 2 only by pressing without forming a cut. In this case, the anchor piece 11'' to be formed may have a cylindrical shape as shown in FIG.

[Effects of the Invention] As described above, in the panel material according to the present invention, peeling of the surface material is prevented by the anchor pieces. Further, since the anchor pieces do not block the flow of the foamable material, the entire panel material is uniformly filled with the foamable material, and a panel material of constant quality can be easily manufactured. Furthermore, since a bent portion is formed in the surface material, there are effects such as improved strength against torsion and the like.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an embodiment of the panel material according to the present invention, FIG. 2 is a perspective view showing the surface material of the panel material in FIG. 4, 5 and 6 are respectively perspective views showing another embodiment of the anchor piece, and FIGS. 7 and 8 are respectively a conventional It is a perspective view showing a panel material. In the figure, 2... Surface material 3... Foaming material 10... Panel material 11. 11', 11'', 11' - Anchor piece 1
2... cut depth

Claims (1)

[Claims] Consisting of two surface materials arranged parallel to each other at a constant interval, and a foamable material injected into the space between the surface materials and solidified, the foam material is applied to a plurality of locations on at least one of the surface materials. A panel material characterized in that an anchor piece is formed by bending a part of the surface material to the back side.