JPH0723537U - Panel core material - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a panel core material that can stably support front and back panels arranged in parallel at a distance and can be produced easily and at low cost. [Constitution] The panel core material 3 is constituted by pressing a plate member having a predetermined thickness and a predetermined size. This panel core material 3 connects the respective sides of the plurality of quadrangular first top surfaces 1 and the plurality of quadrangular second top surfaces 2 to both sides of the hexagonal inclined surface 7, and By connecting the sloping sides on both sides with the corner edge 10, the first and second top surfaces 1 and 2 are connected.
Have quadrangular pyramidal mountain-shaped portions that project in opposite directions. Then, the first and second top surfaces 1 and 2
And the front and back panels are bonded by surface contact.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a core material for a sandwich panel obtained by molding a metal plate, a plastic plate, a rubber plate, hard paper, recycled paper, and the like.

[0002]

[Prior art]

 Many things such as building walls, floors, ceilings, doors, desks, tables, furniture, boxes, etc. use panel-shaped flat plates with rigidity and strength, which are combined or enclosed by panels to store furniture. , The room, the roof, the building, the box, etc.

Conventionally, single plates such as concrete, asbestos plates, plywood, and metal plates have been used as such panels, but efforts have been made to save materials and make light panels while maintaining strength and rigidity. For example, even if it is a wooden door, it is not made of one thick wooden board, but if you put a wooden crosspiece that is a bone between two front and back plywood and integrate it with glue or nails, It is also lightweight and cheap. In order to further homogenize the door panel obtained in this way, a honeycomb core processed into a honeycomb shape with small holes is inserted into the core material to form a sandwich shape, and a panel with even higher rigidity and strength is obtained. Came to be.

FIG. 5 shows an example of such a case. The front and back panels 5 and 6 are applied to both side surfaces of a honeycomb core material 11 formed by laminating belt-shaped papers 12 having a predetermined strength with a predetermined interval. As a result, a wall material or the like that is lightweight and has high rigidity is constructed.

As described above, by using the honeycomb core material 11, a hollow sandwich composite panel which uses a small amount of material and is lightweight, was devised, and a convenient space could be created by combining those panels.

[0006]

[Problems to be solved by the device]

 However, when a panel-like material such as a wooden crosspiece is used as the core material of the panel, if the space between the crosspieces is set too large, external pressure will cause recesses in the unlined parts of the front and back skins, and the overall rigidity of the panel will be weak. turn into. In addition, if the distance between the bones is reduced, those defects can be removed, but the production is laborious, many materials are required, and it becomes expensive.

On the other hand, since the honeycomb core material is not a rough bone like a crosspiece and has a honeycomb-like hole size, it generally supports the front and back materials more finely than a wood crosspiece, and therefore does not easily get depressed by external pressure. Also, the strength is made uniform, which is very preferable. However, the honeycomb core material is much more complicated to produce, unlike wood stalks, etc., and it requires much labor and is expensive to produce.

Further, these sandwich-like hollow panels have a relatively large contact area with the front and back surface materials (panels) like wooden bars, and can be firmly fixed by nailing, screwing, bonding, welding, etc. Unlike a honeycomb-shaped core material, which is generally produced by processing a relatively thin material, the small contact area of the core material is small. Therefore, in many cases, the outer plate and the core material almost depend only on the contact, and unless the bonding is done so reliably, uneven bonding is likely to occur, and the rigidity and reliability of the panel remain uncertain.

In view of the above, the present invention provides a panel core material that supports front and back panels on many surfaces to increase the bonding area and is easy to produce and inexpensive.

[0010]

[Means for Solving the Problems]

 To achieve the above object, the present invention provides a panel core material interposed between two parallel panels spaced apart from each other, the core material having a predetermined thickness. By pressing a plate member of a predetermined size, two hexagonal inclined surfaces on each side are connected to each other, and two hexagonal inclined surfaces are connected to each other. It is characterized in that a mountain-shaped portion protruding in the opposite direction is formed by the top surface of the quadrangle. Further, a reinforcing rib may be formed on the inclined surface of the hexagon.

[0011]

[Action]

 The panel core material according to the present invention is composed of a combination of the first and second top surfaces having a quadrangular shape, and the inclined surfaces having a hexagonal quadrangular pyramid shape and projecting in opposite directions. By changing the dimensions of the rectangular inclined surface, the spacing between peaks, the height of peaks, and the depth of valleys (thickness of the panel core material) can be freely changed. In addition, a core material that can prevent the compressive strength, bending strength, and dents of the front and back outer plates, which is created by the dimensions of the plate material and the hexagonal inclined surface that make up the panel core material, can be freely obtained. In addition, by changing the material of the panel core material and the material of the outer panel, it is possible to obtain light and strong rigidity, high fire resistance, good sound insulation, vibration, shock, compression, etc. It can be changed and has a wide range of applications. Furthermore, if a hexagonal inclined surface forming the panel core material is provided with appropriate ribs, the compression strength and the rigidity strength can be further increased.

[0012]

【Example】

Hereinafter, the present invention will be described with reference to the drawings. Figure 1 is a perspective view of a panel core material according to the present invention, FIG. 2 is a plan view, FIG. 3 is a sectional view along line A-A of FIG. 2, FIG. 4 _B 1 -B ₁ line in FIG. 2 and _B 2 -B It is sectional explanatory drawing which piled up the cross section along ₂ line. As shown in each drawing, the panel core material 3 according to the present invention has a plurality of quadrangular first top surfaces 1 and a plurality of quadrangular second top surfaces 2, and the first top surface 1 and the 2 Each side of the quadrangle of the top surface 2 is connected to the sides of both ends of the hexagonal inclined surface 7, and the two inclined sides on both sides of each inclined surface 7 that are continuous in the front, rear, left and right are connected by the corner edge 10. There is. The upper side from the middle corner portion 4 of the hexagonal inclined surface 7 is the ridge line, and the lower side is the valley portion. With the above-described structure, the panel core member 3 is formed with a large number of quadrangular pyramid-shaped ridges protruding in opposite directions. Reinforcing ribs 8 such as concave stripes or convex stripes may be formed on the inclined surface 7 if necessary.

As a material of the panel core material 3, for example, a plate-shaped member having a proper strength such as a metal material, a plastic plate, and a cardboard is used. The panel core material having a predetermined size is integrally formed by press molding. Is obtained. In the panel core material 3 thus obtained, as shown in FIGS. 3 and 4, one panel 5 is applied to the plurality of first top surfaces 1 and the other panel 6 is applied to the plurality of second top surfaces 2. Used by gluing and bonding the contact surface. As a result, the two panels 5, 6 on the front and back sides are supported in parallel and stably via the panel core member 3 at a predetermined interval.

The inventor of the present invention uses a 0.3 mm thick aluminum plate (the same shape as that shown in FIG. 1 as a perspective view of the panel core material 3) as a plate material of the panel core material 3 in two molds (male and female). It is sandwiched between the peaks and valleys of the first and second top faces 1 and 2 (height 10 mm), and is molded by applying a pressure of 1 cm ₂ 3 kg to mold the panel core material, which is lightweight and has the necessary compression strength. A panel core material was obtained.

Furthermore, the present inventor adjusted the gap between the two male and female dies to be 1 mm, mixed the old newspaper with a large amount of water, beaten the fibers of the paper in a beater, and then 0.2 mm. Strained to a thickness of about 3 mm on the wire mesh. Drain the waste paper waste and dry it until the water content is about 15%. Then, sandwich it between the front and rear molds heated to 110 ° C, apply a pressure of 1 cm ² 3 kg, and leave it for 5 minutes. I got the material. In this case, the strength of the paper could be remarkably improved by putting 0.1% vinyl acetate emulsion or polyvinyl alcohol in water and pretreating it when the used paper is put on the beater.

Further, the present inventor adjusted a 0.8 mm thick hard vinyl chloride sheet so that the distance between the two male and female molds was 0.8 mm, and heated the molds to 85 ° C. in advance. It is sandwiched between sheets, heat-molded at 1.5 kg per 1 cm ² for 30 seconds, and sprayed with a mist of water onto the vinyl chloride sheet taken out from the mold to quench it, and it is a panel core made of plastic with excellent strength. I got the material.

[0017]

[Effect of device]

 As described above, according to the panel core material of the present invention, it is possible to stably support two panels on the front and back sides, which are arranged in parallel at a distance from each other, with a large contact area, and are also highly durable. Moreover, it has an excellent effect that it is easy to produce and can be manufactured at low cost.

[Brief description of drawings]

FIG. 1 is a perspective view of a panel core material according to an embodiment of the present invention.

FIG. 2 is a plan view of a panel core material.

3 is a cross-sectional view taken along the line AA of FIG.

4 is a cross-sectional explanatory diagram in which cross-sections taken along line B ₁ -B _{1 and} line B ₂ -B _{2 of} FIG. 2 are overlapped.

FIG. 5 is a perspective view of a panel core member using a conventional honeycomb core.

[Explanation of symbols]

 1 1st top surface 2 2nd top surface 3 Panel core material 5,6 Panel 7 Inclined surface 10 Ridge line

Claims (2)

[Scope of utility model registration request] 1. A panel core material interposed between two panels arranged in parallel at a distance from each other, wherein the core material has a predetermined thickness and a predetermined size. By pressing the member, a plurality of hexagonal inclined surfaces, which are connected to each other by forming two inclined sides on both sides as corners, and a quadrangular top surface connected to both sides of the inclined surface, respectively, A panel core material having a plurality of quadrangular pyramid-shaped chevron portions projecting in opposite directions. 2. The panel core material according to claim 1, wherein a reinforcing rib is formed on the hexagonal inclined surface.