JPS6212068Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a heat insulating panel with a honeycomb core material used for doors, shutters, etc.

In recent years, insulation panels with a honeycomb core and surface plates attached to both sides have been used in various areas such as building entrance doors, shutters, exterior walls, and walls and doors such as infrared drying treatment rooms. It has become like that.

However, this type of insulation panel has drawbacks such as warping when exposed to radiant heat from sunlight or infrared rays, or when there is a temperature difference between inside and outside, and condensation easily forming when the temperature drops at night. Ta.
For example, when using an insulating panel with a thickness of 17 mm, height of 1800 mm, and width of 600 mm, which has a paper honeycomb core and colored steel plate surface materials attached to both sides by adhesive, as a rain door, it can be used both indoors and outdoors. It has been found that when the temperature difference reaches about 50°C, a warpage of 10 mm or more occurs in the center of the panel. Such warpage of the panel makes it difficult to store it in a door pocket when used for a storm door, and makes it difficult to open, close, and lock the panel when used for a door. Furthermore, when used on an external wall, there are disadvantages such as excessive stress being generated in the assembly part, which may even cause damage.

The purpose of the present invention is to provide a heat insulating panel that overcomes these conventional drawbacks.

For this reason, the inventor of this invention, based on numerous experiments, used a panel member with a surface plate attached to both sides of the honeycomb core material by adhesive etc. as a strength member, and also used a panel member such as polyurethane with a surface material attached on one side. The other side of the heat insulating material made of organic foam or inorganic foam is assembled on one side of the strength member, and this assembly is discontinued so that it is distributed almost uniformly over the entire surface in about 5 to 35% of the total area. It has been discovered that warping of the entire heat insulating panel can be prevented by adhering at a certain area, and this structure is a feature of the present invention.

More specifically, with a structure in which surface plates are rigidly bonded to both sides of a honeycomb core material, if one surface is exposed to strong heat irradiation from sunlight or infrared rays, the temperature difference between the two surface materials cannot be suppressed. This will cause a large warp. For this reason, by assembling a layer of heat insulating material such as polyurethane, which has better heat insulating properties than honeycomb core material, on the side of the honeycomb core panel member that is not exposed to heat irradiation, the amount of heat passing through the panel can be suppressed to a minimum. It has been discovered that the temperature difference between both surface materials of a panel member with a honeycomb core material, which is the cause of this, can be suppressed to a minimum.

That is, by assembling a heat insulating material with better heat insulating properties than a honeycomb core material on one side of the panel member, it is possible to significantly reduce warping of the panel member due to thermal deformation. However, the assembled heat insulating material has problems such as low strength and poor appearance, and the heat insulating material is rarely used exposed to the outside. In general building materials, plate members such as colored steel plates are attached to heat insulating materials by adhesive or the like, and the heat insulating materials are rarely exposed to the outside. In addition, this plate member is often assembled to the heat insulating material by rigid bonding, such as full-surface adhesive, to prevent stickiness or the like. When assembling a plate member on one side of such a heat insulating material such as polyurethane by rigid bonding, and then assembling the other side of the heat insulating member to a panel member made of a honeycomb core material, if it is assembled by rigid bonding such as full-surface adhesive, the insulation If there is a temperature difference between the inside and outside of the panel, the apparent
Two sanderch panels (a sanderch panel with a core of honeycomb material and a sanderch panel with a core of insulation material) are thermally deformed, and the bending stiffness of the two sanderch panels is balanced. This has the disadvantage that the effect of assembling the heat insulating material is reduced. Furthermore, if the insulation material is assembled without bonding, it will deform under its own weight, resulting in an unsightly wavy outer surface. This invention is characterized by flexible joints, which account for approximately 5 to 35% of the total area.
This problem was solved by adhering in intermittent areas distributed almost uniformly over the entire surface. The ratio is appropriately selected within this range depending on the environmental conditions of use and the configuration conditions of the panel.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a part of a basic heat insulating panel according to the present invention in cross section.
A strength member 3 formed by fixing B and a heat insulating member 6 formed by fixing a surface plate, that is, a plate member 5, to one side of a heat insulating material 4 such as polyurethane foam.
are adhered to each other at the bonding area 7, and an edge material 8 having an appropriate shape according to the fitting method and fastening method is fixed along the entire edge of the panel thus formed. Become. Here, paper honeycomb, aluminum foil honeycomb, etc. are used as the material for the honeycomb material 1, and the thickness is 20 to 40 mm.
mm is appropriate. In addition, when using this insulation panel for rain shutters etc., it is intended that the honeycomb material 1 be placed on the side directly exposed to sunlight, that is, on the outdoor side,
For this reason, it is preferable that the plate member 2A is subjected to a normal painting process, a heat reflective coating, a pattern process, etc. from the viewpoint of appearance, and the material is a metal plate such as a steel plate, a stainless steel plate, an aluminum plate, or a melamine resin. Any synthetic resin plate such as a plate can be used. The appropriate thickness of this plate member 2A is about 0.4 to 3 mm. On the other hand, since the plate member 2B is embedded inside the heat insulating panel, there is no need to consider the appearance, and an appropriate metal plate or synthetic resin plate can be used. It is preferable that the thickness of this plate member 2B is equal to the thickness of the plate member 2A. Such honeycomb material 1 and plate members 2A, 2
It is rigidly joined to B by a conventional means. The heat insulating material 4 is not particularly limited to polyurethane resin, but may be made of resin foam such as polyvinyl chloride, polystyrene, polyphenol, polyisocyanurate, etc. as an organic foam, as long as it has a heat insulating property higher than that of the honeycomb material 1. You can also use your body. Further, for example, as an inorganic foam, a calcium silicate foam board, an asbestos-calcium carbonate foam board, etc. can be used. The thickness of the insulation material is 5~
30mm is appropriate. Although the organic and inorganic foams are not rigid, they have a certain strength and can be slightly deformed. Therefore, on one side of the strength member formed by rigidly joining plate members to both sides of the honeycomb material, the heat insulating material made of the foam described above is distributed almost uniformly over the entire surface of about 5 to 35% of the total area. Warping can be prevented by adhering at intermittent areas where the In addition, since the plate member 5 is exposed on the indoor side, it is preferable that the plate member 5 is appropriately treated in terms of appearance like the plate member 2A, and it is preferable to use an appropriate metal plate or synthetic resin plate as the material. can. In any case, the thickness of this plate member 5 is 0.4 to 3
It is preferable to set it to about mm. Such insulation material 4
It is preferable that the board member 5 be rigidly joined over the entire surface, and an appropriate well-known adhesive may be used, or
Alternatively, self-bonding by resin foaming can be used.

The flexible bonding between the strength member 3 and the heat insulating member 6 is not a full-surface bonding as a feature of the present invention, but is made using appropriate adhesion of phenolic resin, epoxy resin, melamine resin, or synthetic rubber in intermittent areas 7. This is done by using an agent. For example, as shown in Fig. 2, the bonding area portions 7 are approximately uniformly distributed over the entire surface, each having an area of about 1 to 100 cm ² , and the total bonding area portions 7 account for approximately 5 to 35% of the entire surface of the panel. It is preferable that It should be noted that such joint area portions 7 do not need to have the same area individually, and although they are shown as approximately square, they may have any shape, and may be arranged in a staggered manner. From the viewpoint of workability, for example, it is also possible to form an emboss in advance on the plate member 2B to define the joint area 7, as shown in FIG.

The heat insulating panel constructed in this way can have any shape, and is formed by fixing a suitable edge material 8 around the entire edge, as is well known, depending on the purpose.

According to the heat insulating panel described above, even if the outdoor side, that is, the plate member 2A receives direct sunlight and the temperature difference between indoor and outdoor reaches 50°C or more, the amount of heat that passes from the plate member 2B side to the room due to the installation of the heat insulating layer This greatly reduces the temperature difference between the two plate members 2A and 2B, and the warping of the panel as a whole can be suppressed as much as possible.

FIG. 4 shows another embodiment, and this heat insulating panel has an appropriate number of frame members 9 arranged between plate members 2A and 2B. The purpose of this frame material 9 is mainly to prevent the strength member 3 from warping (by reducing the temperature difference between the plate members 2A and 2B due to heat transfer) and to improve the strength. (longitudinal) orientation is generally preferred. However, it goes without saying that the orientation can be appropriately determined in the optimum direction depending on the usage conditions. Further, although the frame member 9 is shown here as a rod-shaped member with a U-shaped cross section, it may have any shape, and may also be formed into individual blocks. The use of the frame material 9 for the purpose of heat transfer is made possible by the combination of the heat insulating member 6 (because the heat insulating member suppresses the occurrence of condensation),
It is preferable to use the same material as the plate members 2A, 2B.

FIG. 5 shows yet another embodiment, in which the plate members 2A', 2B' can be given a desired wave shape, embossing, etc. as in this heat insulation panel.

6 and 7 show the strength member 3 and the heat insulation member 6.
Other shapes of the bonding area 7' which performs flexible bonding are shown in FIG. 2. In addition to the island shape as shown in FIG. 2, the bonding area 7' may have a strip shape or a lattice shape at appropriate intervals. In this way, by appropriately selecting the bonding area 7' and combining it with the frame material 9 (FIG. 4), it is possible to achieve the optimum warpage prevention effect corresponding to the usage conditions.

As explained above, according to the present invention, warping due to thermal effects can be suppressed as much as possible, and the heat insulation effect is further enhanced by the combination of heat insulating members.
The effect of preventing dew condensation at night can also be obtained.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a part of an embodiment of a heat insulating panel according to the present invention. FIG. 2 is a plan view showing the distribution of the bonding area. FIG. 3 is a sectional view showing another embodiment of the bonding area. FIG. 4 is a sectional view showing a heat insulating panel according to another embodiment of the present invention. FIG. 5 is a sectional view showing a heat insulating panel according to still another embodiment of the present invention. FIGS. 6 and 7 are plan views showing other embodiments of the bonding area. 1...Honeycomb material, 2A, 2B...Plate member, 3
...Strength member, 4...Insulating material, 5...Plate member, 6
...Insulating member, 7, 7'...Joining area part, 8,
8'...Edge wood.

Claims (1)

[Scope of utility model registration request] One side of the strength member is formed by rigidly bonding plate members to both sides of the honeycomb material, and the other side of the heat insulating material made of organic or inorganic foam with the plate members rigidly bonded to one side is used to cover the entire area. A heat insulating panel characterized in that it is constructed by flexible bonding by adhering in intermittent areas that are almost uniformly distributed over about 5 to 35% of the entire surface.