JPS6140809Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a heat insulating base plate useful as a base for buildings and structures, such as roofs and interior and exterior walls. In particular, the base plate is a base plate that has rigidity, heat insulation, elasticity (cushionability) sufficient to cope with irregularities of the base, waterproofness, sound absorption, shape retention, and mechanical strength as a base.

For example, as a conventional base plate of this kind,
-28946 publication or Utility Model Publication No. 47-17943 are known. However, as shown in FIG. 1, in the former case, the substrate A and the sponge sheet B must be integrally formed via the adhesive C, and both ends of the sponge sheet B protrude from the substrate A. When a base is formed using gypsum board, plywood, etc., a gap with a width of △ and the same thickness as the substrate is formed at the joint, which has the drawback of lacking waterproofness, workability, and heat insulation. Furthermore, when this is used as a roof base, there are disadvantages such as depressions being formed in the asphalt felt and parts of the roofing material where there is no base material to which nails or the like can be fixed. Moreover, in the latter case, a composite decorative board in which a hard substrate and a porous plate-like body are integrated without using an adhesive is shown. However, although the above-mentioned decorative board has improved flame retardancy, adhesion, design, and hygroscopicity,
In addition to lacking heat insulation properties, it was not possible to eliminate gaps that occur at joints. Moreover, since it is not waterproof, it is difficult to use it as a base material.

In order to eliminate these drawbacks, the present invention provides rigid substrates with nail pull-out resistance related to rigidity and frictional resistance, as well as exhibits heat insulation, waterproofness, and cushioning properties, and creates a connecting base with no gaps at joints. We propose a heat insulating base plate that can form a

An embodiment of the heat insulating base plate (hereinafter simply referred to as base plate) according to the present invention will be described in detail below with reference to the drawings. FIG. 2 is a perspective view showing the base plate. In the figure, reference numeral 1 denotes a hard base plate that has shape retention, mechanical strength (rigidity, bending strength), and nail pull-out resistance as a base plate. Specific examples include plywood plywood, gypsum board, slate board, calcium carbonate board, calcium silicate board, wood board, synthetic resin board, honeycomb board,
This is a board made by laminating one or more of hard fiberboard, high-density synthetic resin foam board, and lightweight organic or inorganic foam board containing reinforcing material. Its size is not particularly stipulated, but
For example, commercially available plywood (1800mm x 900mm x 5 to 12
mm) etc. 2 is a synthetic resin foam (hereinafter simply referred to as foam) which has a core part 3 and a protruding part 4.
The core portion 3 functions as a heat insulating layer, a raised material, a cushion material, a non-hygroscopic material, a waterproof material, a sound absorbing material, and an adhesive (when forming a foam). Also,
The protrusion 4 protrudes outward from at least one side wall 1a of the substrate 1 and covers the side wall 1a, and serves to prevent the formation of gaps at joints when connecting base plates, and to provide waterproof, heat insulating, and rigid substrates. This works to improve the water resistance, corrosion resistance, weather resistance, and workability of the side wall of No. 1. Examples of the foam 2 include polyurethane foam (soft, hard, open cell structure, closed cell structure), phenol-modified, urethane-modified polyisocyanurate foam, phenol foam, polyolefin foam, polyethylene foam, polystyrene foam, vinyl chloride. foam, polyamide foam, polyimide foam, or epoxy foam. Note that the size Δt of the protruding portion 4 is set to about 1 to 10 mm, for example, 1 to 5 mm. This is because if Δt is too large, there may be parts where nails or the like cannot be attached when constructing roofing materials and exterior wall materials. Furthermore, this form 2 does not use a molded body, but is formed from raw materials by on-site foaming, and is not affected by the shape of the side walls and back surface of the substrate 1, such as the unevenness or roughness of the surface. , which can be strongly integrated. Furthermore, the density of the foam 2 is selected depending on the use and purpose, and the range is, for example, about 3 to 100 times the foam structure, and the thickness is about 5 to 100 mm. 5 is a waterproof sheet, which strengthens the mechanical strength of the base plate by making it sandwiched and applies surface pressure to form 2 (particularly, form 2 prevents that part from easily collapsing due to pressure on a small area) ) and act as a waterproofing material. Tarpaulin sheet 5
Examples include sheet-like materials laminated with one or more of kraft paper, asbestos paper, synthetic resin film, asphalt roofing, nonwoven fabric such as glass cloth, metal foil, tarpaulin paper, and metal foil plate.

Next, construction examples will be explained.

Now, assuming that the base plate is used as a roof base plate as shown in FIG. without any gaps,
And finish the base surface to be the same plane. Next, asphalt felt is laid down on this base as shown by the two-dot chain line, and a roofing material (not shown) is attached thereon to form a roof. Therefore, the waterproofness, heat insulation, weather resistance, and workability of the joint part at this stage of foundation are not only the same as before because there are no gaps in the total thickness of the joint part, but also because the joint structure is packed. It has significantly improved features compared to .
Moreover, since the cushion material is interposed between the hard substrates 1, deformation due to earthquakes and the like can be absorbed, and the structure can be made into a strong structural member. It also has the feature of functioning as a so-called vibration-resistant structural material. In addition, the mechanical strength of this base plate is independent of the strength of Form 2 due to its sandwich structure, and the strength of the double-sided materials, especially the waterproof sheet, directly affects the bending strength. It has significantly enhanced features.

What has been described above is only one embodiment of the base plate according to the present invention, and the base plate can also be formed as shown in FIGS. 4a to 4c. That is, Fig. a shows a base plate in which protrusions 4 are formed on both side walls and the exposed surface of the foam 2 is covered with a waterproof sheet 5 in a U-shape. b
The figure shows a base plate in which a waterproof sheet is provided on the surface of the hard substrate 1 as shown by the two-dot chain line in figure a, and c
The figure shows a base plate in which a waterproof sheet 5 is protruded outward from the edge, and an adhesive layer 9 and a release layer 10 are provided on the back surface of the waterproof sheet 5. Furthermore, although not shown, a metal plate can also be used as the hard substrate. Furthermore, one or more of a flame retardant, a flame retardant aid, an inorganic porous particle, a smoke reducing agent, an aggregate, and a fireproof material may be added to the foam 2. In addition, it is also possible to use a base plate in which the density of the protrusions 4 is different from that of the core material so that expansion and contraction can be controlled, or to form a waterproof coating film, a moldproof coating film, or a fireproof coating film on the hard substrate 1.

As described above, according to the base plate according to the present invention, construction can be performed with no gap formed at the joint of the base plate, and with appropriate cushions added, and with a certain amount of cushioning spacing. As a result, the base surface becomes flat, which makes it extremely easy to attach subsequent members. Furthermore, since the joints have cushioning properties and are formed airtight, they have excellent waterproof properties, heat insulation properties, soundproof properties, and vibration resistance. Furthermore, in terms of workability, due to the cushioning properties of the foam 2, its light weight, and its fixed size, it is not affected by the unevenness of the base, is easy to transport, and can be reliably fixed to the rim, rafters, etc. Furthermore, since the foam is non-hygroscopic, its insulation properties do not deteriorate significantly over time.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a base plate joint when a base plate is formed using a conventionally used heat-insulating base plate, and FIG. 2 is a perspective view showing an embodiment of a heat-insulating base plate according to the present invention. FIG. 3 is an explanatory view when a roof base is formed using the above base plate, and FIGS. 4 a to 4 c are explanatory views showing other embodiments of the heat insulating base plate according to the present invention. DESCRIPTION OF SYMBOLS 1...Hard substrate, 2...Synthetic resin foam, 3...Core material, 4...Protrusion part.

Claims (1)

[Scope of utility model registration request] A synthetic resin foam is interposed between a hard substrate made of square or rectangular plywood, etc. and a waterproof sheet, and at least one side wall of the substrate is covered with a part of the foam, and the foam has adhesive properties when formed. A heat insulating base plate characterized by being integrally formed with.