JPH0521404Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a thermoplastic resin foam for insulation construction.

[Problems to be solved by conventional techniques and ideas]

Conventionally, thermoplastic synthetic resin foams such as polystyrene resin have been used for insulation construction of houses, buildings, etc., and these are cut into rectangular shapes with a certain area, such as 0.91 m long and 0.91 m wide. are used. These foams are installed by attaching them one by one during insulation construction, which causes a lot of time loss and has many problems in terms of construction cost and workability.

Further, since the foams are attached one by one, misalignment occurs between the foams, and this misalignment causes gaps between the foams, resulting in a reduction in the heat insulation effect. In order to eliminate such problems, for example, filling material is applied between the foam bodies, but this also causes problems such as high construction costs and poor workability.

Furthermore, when using such foam as a roof base material, workers often walk on the base material during the work.
The shape of the roof has many sloping surfaces, which can be very dangerous if the surface of the base material slips. Therefore, it is necessary to take measures to prevent the surface of the base material from slipping.

The present invention solves the above-mentioned problems and provides an excellent thermoplastic resin foam for insulation construction that has good workability, high strength, and does not slip even when attached to a roof and stands on it. The purpose is to

[Means for solving the problems] In order to solve the above problems, the roof base material of the present invention has the following features:
It consists of a flat thermoplastic resin foam with a plurality of non-through holes and/or through holes in the thickness direction, and a net-like body provided on at least one side of the foam, and the net-like body has an extrusion-molded net or string. It has a structure in which a plurality of hinge parts are alternately provided on the upper and lower surfaces of a laminate, which is a knitted net, and the laminate is folded alternately at each hinge part.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

In Fig. 1, numeral 1 shows an embodiment of the thermoplastic resin foam for heat insulation construction of the present invention (hereinafter simply referred to as the foam of the present invention), and the foam 1 is a flat plate-shaped thermoplastic resin foam. A laminated layer consisting of a body (hereinafter simply referred to as a flat foam) 2, a net 3 made of strings as a net-like material provided on the upper surface of the foam 2, and a net 4 made of strings provided on the lower surface. It has a structure in which the body 5 is folded at a plurality of hinge parts 6, 6....

As shown in FIG. 2, the laminate 5 is formed by providing nets 3 and 4 on both sides of a flat foam 2,
Further, a hinge portion 6 having a W-shaped cross section is formed on one surface 7 of the laminate 5 along a direction perpendicular to the longitudinal direction of the laminate 5, and a hinge portion 6 having a similar shape is formed on the other surface 8. A plurality of hinge portions 6 are similarly formed, and a plurality of these are alternately formed on one surface 7 and the other surface 8 of the laminate 5.

The net-like material provided on one side of the flat foam is not limited to the shape as in the above embodiment, but may be an extrusion-molded net, for example. By providing such a net-like material on the surface of the flat plate-shaped foam, a mesh-like stepped portion of the above-mentioned mesh material is formed on the surface of the foam, thereby making it possible to improve the thermal insulation thermoplastic resin foam of the present invention. Provides anti-slip effect.

Further, the foam of the present invention is provided with a large number of through holes 10, and by providing the through holes 10, the moisture permeability of the foam can be adjusted and the moisture permeability is improved. Although the planar cross-sectional shape of the through hole 10 is circular, it is not limited to this, and may have other shapes such as a polygon. Further, the size of the planar cross-sectional area of each hole is not particularly limited, but it is not preferable that it be too large, and a size of about 5.7 mm ² or less is preferable. or,
The foam of the present invention may be provided with non-through holes for the same purpose, or may be provided with a combination of non-through holes and through holes.

The end portion of the laminate 5 configured as described above is folded in the direction of arrow A at the hinge portion 6 provided on one surface 7 of the laminate 5, and then the hinge portion 6 provided on the other surface 8 is folded. It can be folded in the direction of arrow B, and then alternately folded in sequence (the folded state is shown in FIG. 1).

In the above example, the net-like material is laminated on both sides of the flat foam, but the invention is not limited to this, and a laminate in which the net-like material is laminated only on one side of the flat foam It is also possible to use It is also possible to provide a net-like material on one surface and a film-like material made of thermoplastic resin or the like on the other surface.

Further, the shape of the hinge portions formed on both sides of the laminate is limited to a W-shaped cross section as shown in FIG. 2, and a groove shape formed along a direction perpendicular to the longitudinal direction of the laminate. Various shapes are possible, and the point is that any shape can be used as long as it can be easily folded when the laminate is folded at the hinge, and that does not cause damage such as cracks to the laminate after folding. Various shapes are also possible.

In the present invention, a thermoplastic resin is used as the resin forming the flat foam, such as polystyrene, poly-P-methylstyrene, high-impact polystyrene, styrene-maleic anhydride copolymer, styrene-maleic anhydride copolymer, etc. Polystyrene resins, polypropylene, polyethylene, polybutene, ethylene-propylene copolymers, ethylene-butene copolymers whose base resin is acrylonitrile copolymer, styrene-butadiene-acrylonitrile copolymer, or a mixture of two or more of these. , polyolefin resins such as ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, ethylene-acrylate copolymer, hard and flexible vinyl chloride resin, vinyl chloride-vinyl acetate copolymer, acrylic acid or meth Examples include acrylic acid or ester resins thereof, and among them, polystyrene resins are most preferred in terms of heat insulation performance and low cost.

In addition, in the present invention, materials constituting the net-like material include fibers made of polyolefin resin, nylon resin, polyester resin, and polyacrylonitrile resin, and if necessary, carbon fiber, glass fiber, etc. Inorganic materials and metal fibers can also be used. These are materials that can be bonded to the flat foam using adhesive or heat.

The size of the foam of this invention can be selected from various sizes depending on the object to be insulated, but if it is extremely large, it will be inconvenient to handle during construction, and if it is too small, it will interfere with the purpose of this invention. It is not possible to improve the workability and prevent the deterioration of insulation properties. In this invention, taking the above-mentioned reasons into consideration, the length in the longitudinal direction of the laminate is 0.9 to 36 m, the length in the width direction is 0.3 to 3 m, and the length between each hinge part is 0.3 to 36 m.
Preferably it is 1.8m. Further, it is preferable that the thickness of the flat foam is 0.1 to 5 cm.

In the present invention, the foaming ratio is 2 to 80 times, preferably 5 to 70 times, and the average cell diameter is preferably 0.05 to 2 mm.
It is. As mentioned above, the thickness of the flat foam is 0.1
A thickness of ~5 cm is preferable; if it is too thin, the heat insulating effect will be poor, and if it is too thick, there is a risk that folding of the laminate may be hindered.

Various methods can be used to form the foam of the present invention configured as described above. For example, a mesh material may be attached to at least one side of the foam extruded from an extruder using an adhesive or heat laminated. The laminate is laminated to form a laminate, a hinge part is formed at a predetermined location of the laminate by pressing or hot pressing using a pressing jig, and the hinge part is then cut to a predetermined length. Obtain a laminate. The resulting laminate can be folded alternately at each hinge provided on the laminate.

Furthermore, the hinge portion can be formed at a predetermined location of the flat foam before the net-like material is laminated by cutting with a knife, heat melting, or pressing with a pressing jig or the like.

When using the foam of the present invention configured as described above, for example, after fixing the end of the roof base material to a predetermined location on the roof of a house where insulation is to be performed, the hinge portion is successively stretched. By fixing it in place, insulation can be easily installed. It is also possible to fix the foam at the top of the roof and then move down the slope one after another and fix the foam.

Since the foam of the present invention has a net-like material on its surface, even if workers walk on the constructed foam during work, they will not slip and can work extremely safely.

As a specific example of this, as shown in Figure 1, the foam of the present invention, which has netting on both sides, is used to insulate a roof with a 30 degree slope, and a worker rides on it. When I tripped, there was no slipping at all and I was able to work safely. The net on the top is a net made of nylon strings with a diameter of 3 mm, woven so that each mesh is a 30 mm square, and the foam has a foaming ratio of
It is made of 18x polystyrene foam.

For comparison, we also insulated a similar roof by using a foam material with 30μ thick high-impact polystyrene film on both sides instead of the mesh material, and when workers stood on it, they often had to step on it. The sliding work efficiency was poor.

When performing insulation work using the foam of the present invention, the foam of the present invention is large, so the number of alignments is reduced, and the number of seams between the foams is extremely small. Gaps are less likely to form between the foams, and a reduction in the heat insulation effect can be prevented as much as possible. Furthermore, even if a gap occurs, since the amount of joints is small, filling material can be applied to the gap in a short time.

Furthermore, when constructing a wooden house or the like, if the distance between the hinge parts is set to the same length as the distance between the pillars, each hinge part can be fixed, and the fixing location can be easily selected.

In addition, since the mesh material is provided on at least one side of the flat foam, not only the strength of the foam itself is improved, but also the strength of the hinge portion is increased.
Even if the hinge portion is repeatedly bent, problems such as cracks will not occur in the hinge portion.

[Effect of idea]

As explained above, the thermoplastic resin foam for insulation construction of the present invention includes a flat thermoplastic resin foam having a plurality of non-through holes and/or through holes in the thickness direction;
A net-like body is provided on at least one side of the foam, and the net-like body is an extrusion-molded net or a woven string net, and a plurality of hinge parts are alternately provided on the upper and lower surfaces of the laminate. It has extremely good workability and excellent strength. Furthermore,
Even if one stands on the thermoplastic resin foam for heat insulation construction according to the present invention, the workability can be improved in this respect as well, and the work can be carried out extremely safely. Further, the plurality of holes can adjust the moisture permeability of the thermoplastic resin foam for heat insulation construction of the present invention, and have various effects such as improved moisture permeability.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view of an embodiment of the foam of the present invention, FIG. 2 is a perspective view of essential parts of a laminate, and FIG.
It is a longitudinal cross-sectional view along the line. 1... Thermoplastic resin foam for insulation construction, 2...
Flat thermoplastic resin foam, 3, 4... Net-like material,
5...Laminated body, 6...Hinge part.

Claims (1)

[Claims for Utility Model Registration] (1) Consisting of a flat thermoplastic resin foam with a plurality of non-through holes and/or through holes in the thickness direction, and a net-like body provided on at least one side of the foam. , characterized in that a plurality of hinge parts are alternately provided on the upper and lower surfaces of a laminate in which the net is an extrusion-molded net or a woven string net, and the laminate is folded alternately at each hinge part. Thermoplastic resin foam for insulation construction. (2) The thermoplastic resin foam for insulation construction according to claim 1, wherein the net-like body is made of a material that can be bonded to the flat thermoplastic resin foam with an adhesive or heat.