JPH0584710U - Thermal insulation panel - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a heat insulating material that can be easily worked even if the construction site is small, improves work efficiency, and solves environmental problems. [Structure] Waterproof sheets 2 and 3 are integrally foam-bonded in a flat plate shape to the upper and lower surfaces of a heat insulating foam 1 to form a heat insulating panel.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a heat-insulating panel having a waterproof property, which is preferably used as a heat insulating material for a refrigerating warehouse, a constant temperature warehouse, a refrigerating car, a floor material or a wall material for construction of a cooling facility.

[0002]

[Prior Art]

 2. Description of the Related Art Conventionally, in order to impart heat insulating property to the floor surface of a large-scale refrigerated warehouse, a heat insulating floor 18 in which a heat insulating material 17 made of a foam material is provided is provided as shown in FIG. 7, for example.

In the figure, 19 is a rubble stone, 20 is concrete, 21 is oak mortar, 22 is a concrete block as a ventilation layer, 23 is oak mortar, 24 is a moisture-proof layer, 25 is a waterproof layer, and 26 is holding concrete. 27 is a wall panel, 28 is a ceiling panel, 29 is a flat roof, 30 is a steel frame, and 31 is a drainage port.

[0004]

[Problems to be solved by the device]

 However, this type of conventional heat insulating material 18 is a process in which a foaming machine, a foaming undiluted solution, etc. are brought to the site, and a heat insulating floor 19 is sequentially installed from the lower stone 17 to concrete 21, Narashi mortar 22, concrete block 23, etc. However, the construction site was too narrow because it had to be directly foamed and installed on site, and the work was complicated and work efficiency was not sufficient. There was also an environmental problem such as the generation of foul odors.

An object of the present invention is to provide a heat insulating material that can be easily worked, the work efficiency can be improved, and the environmental problem can be solved even if the construction site is small.

[0006]

[Means for Solving the Problems] As a result of intensive studies to achieve the above-mentioned object, the present invention proposes that the heat insulating material is formed as a heat insulating panel in advance before construction, instead of foaming the heat insulating material on site. However, based on the idea of laying this on site, we adopted a heat insulating panel in which a waterproof sheet is integrally bonded in a flat plate shape to the upper and lower surfaces of the heat insulating foam. This heat-insulating panel is, for example, one in which a plurality of such panels are laid in a tile-like manner at the site, and the panels are joined together.In this case, the joint surface between the heat-insulating panels also has a waterproof effect. Since it is preferable to have the waterproof sheet, a waterproof sheet having at least one end of the waterproof sheet having a joint margin protruding from the insulating foam is adopted in the present invention. It is integrally bonded to at least one surface.

The waterproof sheet may be integrally bonded to at least one side end surface of the heat insulating foam.

As the heat-insulating foam, any foam material exhibiting heat-insulating properties may be used, but rigid urethane foam, phenol foam, and urea foam are particularly preferable. The waterproof sheet is also not particularly limited, but a synthetic resin sheet such as a rubber sheet or a polyvinyl chloride sheet is preferable.

Regarding the method for producing the heat insulating foam, it can be produced by a known molding method, but at the time of foam molding, it is desirable to simultaneously attach a waterproof sheet in the mold and perform integral foam adhesion. After forming the heat-insulating foam, a waterproof sheet may be separately integrated with an adhesive or the like. If necessary, a primer may be used for adhesion to the waterproof sheet by integral foaming.

[0010]

[Action]

 According to this invention, instead of foaming the heat insulating material on-site, a heat-insulating panel of pre-formed heat-insulating foam is laid on-site, so it is necessary to bring a foaming machine and a foaming undiluted solution to the site as in the past. There is no need, and construction is extremely easy, and work efficiency is significantly improved. In addition, because it is lightweight, it is also good in terms of transportation, storage, and work. In addition, since the heat insulating panels are produced in the factory in advance, the standards are standardized on-site, and no offensive odor or scattering due to foaming on-site occurs.

Further, the heat insulating panel of the present invention has a waterproof sheet on at least one of the upper and lower surfaces of the heat insulating foam, so that it also exhibits a waterproof effect. In particular, in the case of a heat-insulating panel with a waterproof sheet having a joint margin, the joint portion of this tarpaulin covers the joint surface of the heat-insulating panels and joins them to other adjacent heat-insulating panels. Therefore, it is possible to prevent water leakage from the joint.

The heat-insulating panel can be particularly preferably used as a heat-insulating floor material or a heat-insulating wall material for a refrigerating / cooling warehouse, a constant temperature warehouse, a refrigerating vehicle, a construction of a cooling facility, and the like.

[0013]

【Example】

 FIG. 1 is a sectional view showing an embodiment of a heat insulating panel for a large-scale refrigerating warehouse according to the present invention. In the figure, reference numeral 1 is a heat insulating foam made of urethane foam, and waterproof sheets 2, 3 made of rubber sheets are integrally foam-bonded on both upper and lower surfaces thereof. A is a heat insulating panel as a flooring material having these configurations. FIG. 2 is a cross-sectional view showing another embodiment of the heat insulating panel for a refrigerating and refrigerating warehouse according to the present invention in use, and like the above embodiment, the waterproof sheets 4 and 5 are adhered to both upper and lower surfaces of the heat insulating foam 1. It is integrated. However, in the heat-insulating panel B of this embodiment, the waterproof sheets 4 and 5 have joint margin portions 4a and 5a protruding from the heat-insulating foam 1 at both ends as shown in the figure, and the heat-insulating panel shown in FIG. When laid on the concrete 6 in combination with the heat insulating panel A, the joint portions 4a, 5a of the waterproof sheets 4, 5 cover the joint surface with the adjacent heat insulating panel A, and It is configured to be joined. Reference numeral 7 is a double-sided adhesive tape attached to the back surfaces of the joint margins 4a, 5a of the waterproof sheets 4, 5, and in this embodiment, the double-sided adhesive tape 7 is used to ensure the connection with the adjacent heat insulating panel A. It The heat insulating panels A and B shown in FIGS. 1 and 2 are particularly suitable for being laid on a surface having irregularities or the like.

On the other hand, FIG. 3 is a cross-sectional view showing a heat insulating panel C having a joint margin 8a only at one end of the waterproof sheet 8 in a used state. In this embodiment, as shown in the figure, a gap filler 9 made of urethane foam is loaded between the heat insulating panel A and the heat insulating panel A. The heat insulating panel C of this embodiment is suitable for general laying and has high versatility.

FIG. 4 is a cross-sectional view showing a heat insulating panel D in which a step portion 10 is formed in a state where the end surface portions of adjacent heat insulating panels can be fitted to each other, and a joint margin of the waterproof sheet 11 is provided on the step portion 10 side. It has a part 11a. This type of heat insulating panel D does not need to be combined with the heat insulating panel A or the like, and can be made into a heat insulating material by laying a plurality of single heat insulating panels D.

FIG. 5 is a cross-sectional view showing a use state when only the heat insulating panel A is used. Regarding the gap of the heat insulating panel A, unlike the above-described embodiment, the waterproof sheets 2 and 3 are used. The independent waterproof joint members 12, 13 are laid between the heat insulating panels A to ensure the waterproof effect of the joint surface.

The heat insulating panel of the present invention is not limited to the above embodiment. For example, regarding the combination of the heat insulating panels, the heat insulating panels A, B, C, and D may be appropriately combined in various modes, and they may be used alone.

By the way, when the above-mentioned heat-insulating panel D was actually applied as a heat-insulating material for a floor material for a refrigerating and refrigerating warehouse, the work was extremely easy, and the work could be done quickly. FIG. 6 is a sectional view showing the construction state, in which a plurality of heat insulating panels D are laid on the concrete 6. Further, the waterproof sheets 11, 11 are arranged on the upper and lower surfaces of the heat insulating foam 1, and at the corner end 15 with the heat insulating wall 14, the waterproof sheet 11 is installed in a folded state as shown in the figure. Therefore, the waterproof effect can be exhibited well even in the corners. In the figure, 16 is a stone. This construction is just an example, and it goes without saying that it can be applied to other constructions.

[0019]

[Effect of the device]

 As described above, the present invention is a heat insulating panel in which a waterproof sheet is integrally bonded in a flat plate shape on the upper and lower surfaces of a heat insulating foam, so that even if the construction site is small, work can be performed easily and work efficiency is improved. It is possible to improve and solve environmental problems. It also has a waterproof effect, making it extremely practical.

Therefore, it can be suitably used as a heat insulating material such as a floor material or a wall material of a freezing / refrigerating warehouse, a constant temperature warehouse, a refrigerating car, a cooling facility, and the like, especially in a large refrigerating / freezing warehouse.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a heat insulating panel A which is an embodiment of the present invention.

FIG. 2 is a sectional view showing a heat insulating panel B according to another embodiment of the present invention in a use state.

FIG. 3 is a cross-sectional view showing a heat-insulating panel C having a joint margin at only one end of the waterproof sheet in a used state.

FIG. 4 is a cross-sectional view showing a heat insulating panel D in which a step portion 10 for fitting is formed on an end surface.

FIG. 5 is a use state diagram when only the heat insulating panel A is used.

FIG. 6 is a cross-sectional view showing an example of a construction state.

FIG. 7 is a schematic view showing an example of a conventional refrigerating and refrigerating warehouse.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heat-insulating foam 2 Waterproof sheet 3 Waterproof sheet 4 Waterproof sheet 4a Seam margin 5 Tarpaulin 5a Seam margin 8 Tarpaulin 8a Seam margin 11 Waterproof sheet 11a Seam margin 12 Seam margin 13 Seam margin A Heat insulation Panel B Heat-insulating panel C Heat-insulating panel D Heat-insulating panel

Claims (4)

[Scope of utility model registration request] 1. A heat insulating panel, characterized in that a waterproof sheet is integrally bonded in a flat plate shape to the upper surface and the lower surface of the heat insulating foam. 2. A heat insulating panel, wherein a waterproof sheet integrally bonded to at least one of the upper surface and the lower surface of the heat insulating foam has a joint margin with an adjacent heat insulating panel at at least one end. 3. A heat insulating material for flooring, which comprises the heat insulating panel according to claim 1. 4. A heat insulating material for wall material, which comprises the heat insulating panel according to claim 1.