JPH039975B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a method for forming a heat insulating wall base, and its purpose is to form a heat insulating layer composed of a foamed synthetic resin evenly over the entire surface of the wall base without any gaps. The object of the present invention is to provide a method for forming a completely heat-insulating wall base that does not cause dew condensation due to local insulation irregularities during the cold season.

Another object of the present invention is to form an ideal heat insulating layer between the stretched net material and the wall base surface by a simple operation of spraying foamed synthetic resin onto the stretched net material. Provides construction methods.

Furthermore, another object of the present invention is to stably fix the mesh material, which is stretched flat under tension, to the wall surface without creating a foamed synthetic resin heat insulating layer between it and the wall base surface. To provide a construction method for a heat insulating wall base, which is advantageous for finishing work and does not cause any hindrance in laying boards, etc.

BACKGROUND ART A heat insulating wall in which a heat insulating layer of foamed synthetic resin is interposed between a wall board and a wall base surface is well known, and is gradually becoming popular as the demand for energy saving increases.
By the way, conventional insulated walls can be roughly divided from a structural perspective: those that sandwich insulation boards such as foamed steel boards between the wall board and the wall base surface, and those that insert foamed insulation boards through holes provided throughout the wall board. There are two methods in which synthetic resin is injected and filled by foaming on site to form a heat insulating layer between it and the wall base.In the former method, the heat insulating board is cut to the required size to suit the construction site. They were dissatisfied with the fact that it was time-consuming to do so, and that bulky insulation boards produced at the factory had to be stored and transported to the site during construction.

For these reasons, the latter method, which can be easily constructed by foaming on-site, has been viewed as promising.
However, the following drawbacks have been pointed out to insulated walls constructed using this method.

Since the foamed synthetic resin is injected into the wall through holes in the wallboard, imperfections in the formation of the heat insulating layer cannot be detected and condensation may occur.

The part where the rim is disposed is not filled with a heat insulating material, and the insulation of the rim part is incomplete, and linear condensation tends to form on the wall surface located there.

The present invention was made in view of the fact that although the latter method, which allows construction by foaming on site, is very advantageous in terms of ease and speed of construction, it still has the above-mentioned drawbacks. This focuses on the structure of the wall base as a key point in solving the problem.

That is, the present invention will be explained based on the illustrated embodiment; a large number of fixing devices 1 are arranged in rows on the surface of the wall base W so that the bells of the fixing surface F are all flush with each other. On the rows, stick timbers 2 with concave grooves 21 drilled in the longitudinal direction of the surface are fixed, and the netting material 3 is spread over the fixed beams 2 so as to cover the entire wall material W, and at the same time, groove 2
1, by fitting and fixing a presser plate 4 so as to sandwich the net material 3, the net material 3 is tensioned flush, and the net material 3 stretched in this way and the wall base W surface are This relates to a method for forming a heat insulating wall base, characterized in that a foamed synthetic resin is injected and filled into the space created between the two through the mesh of the net material 3 to form a heat insulating layer 5. .

To add a further note to the present invention, the wall base W to which the present invention method is applied is mainly a concrete frame, but it is not necessarily limited to this, and for example, wall bases made of bricks, steel plates, etc. Of course, it is also possible to apply.

The fixtures 1 to be arranged in rows on the wall surface W include adjusting bolt type fixtures as shown in FIGS. A fixture is used in which the mating fixing surface F is comprised of a bolt 13 that is flat.
It is preferable that at least the bolt 13 of the fixture 1 can be nailed, and therefore it is usually made of a soft, semi-hard, or low-foaming synthetic resin material. When arranging the fixtures 1 in a row on the wall base W, the sleeves 12 are fixed with nails or adhesive, or the sleeves 12 are embedded in advance when pouring concrete into the wall base. You can use the following method. The fixtures 1 of FIGS. 7 and 9 are suitable for nailing, the fixture 1 of FIG. 8 is suitable for adhesive fixing, and the fixture 1 of FIG. 10 is suitable for embedding in concrete. In this way, the bolts 13 are screwed into the sleeve 12 fixed to the wall base W, and the fixing surfaces F of these bolts 13 are aligned.

The beams 2 fixed on one row of fixtures arranged as described above are usually made of wood. Although the concave groove 21 formed in the timber 2 has a shape in the illustrated example, it may be a V-shaped groove, and in short, it is sufficient that it has a shape that allows the presser plate described later to be easily fitted therein.

As the netting material 3, cheesecloth (made of cotton or vinylon) of about 18 to 25 meshes is used. This net material 3 is
By fitting and fixing the presser plate 4 into the groove 21 of the beam material 2, it is tension-fixed flush with the surface of the beam material 2. The presser plate 4 is made of wood similarly to the timber 2, and is usually fixed to the timber 2 with nails. Incidentally, in order to secure the net material 3 under tension, first fix both ends thereof to the cross member 2, and then fit a presser plate into the concave groove 21 of the intermediate member 2.

The foamed synthetic resin that is the material for the heat insulating layer 5 is as follows:
Preferably, foamed urea resin is used. When the foamed urea resin is injected between the netting material 3 and the wall material W surface, the foaming pressure of the netting material 3 is not applied.
It does not impair the coplanarity of the surface and has good fluidity during injection, so it quickly spreads into the space between the netting material 3 and the wall base W, making the injection work easy, and also in case of a fire. This is because it does not generate toxic gas and is advantageous in terms of disaster prevention.

The method of the present invention is generally carried out as described above, but
The present invention is by no means limited to the illustrated embodiment, and various modifications can be made within the scope of the claims. , and the bolt/nut type is not necessarily required as long as the cross member 2 can be fixed by point support, and the materials of the net member 3 and the foamed synthetic resin are not limited to the above-mentioned specific examples.

As explained above, the heat insulating wall base formed by the method of the present invention is made of a net material that is tension-supported flush with the wall material W surface by the holding plate 4 with the fixture 1 and the slat material 2 interposed between it and the wall material W surface. Since the heat insulating layer 5 is formed by injecting and filling the foamed synthetic resin through the mesh 3, there is no gap in the heat insulating layer 5, and even if a gap does occur, it can be easily removed during work. Since it can be detected and corrected immediately, it can be said that there is no condensation phenomenon caused by local insulation irregularities in insulated walls using this wall base as in conventional insulated walls. The injection work is also significantly simpler and more efficient than the conventional work of injecting through holes in the wall board, and the formed heat insulating layer is stably supported and fixed by the mesh of the mesh material 3. Therefore, the heat insulating layer 5 does not shrink due to dryness or other causes, and there are no gaps or cracks.

As described above, if a heat insulating wall is constructed by the method of the present invention, all of the difficulties that were conventionally considered unavoidable in this type of heat insulating wall can be eliminated, and its practicality is extremely high.

[Brief explanation of the drawing]

Figures 1 to 4 are front views of main parts showing the working steps of the method of the present invention, Figure 5 is a sectional view taken along the line A-A in Figure 3,
FIG. 6 is an enlarged cross-sectional view of a case in which a fixing device is embedded in a concrete wall base, and FIGS. 7 to 10 are perspective views showing examples of the shape of a fixing device used in the method of the present invention. 1... Fixture, 2... Wood, 21... Concave groove, 3
... Net material, 4 ... Pressing plate, 5 ... Heat insulation layer. F...
Fixing surface (of the fixture), W...Wall base.

Claims (1)

[Scope of Claims] 1. A large number of fixing devices 1 are arranged in rows on the surface of the wall substrate W so that the fixing surfaces F are all flush with each other, and on one row of these fixing devices, a recess is provided in the longitudinal direction of the surface. Groove 2
1 is fixed, and the net material 3 is stretched over the fixed beam material 2 so as to cover the entire surface of the wall material W, and the groove 2 of the beam material 2 is tightened.
1, by fitting and fixing a presser plate 4 so as to sandwich the net material 3, the net material 3 is tensioned to a flush state, and the net material 3 stretched in this way and the wall base W surface are A method for forming a heat insulating wall base, characterized in that a foamed synthetic resin is injected and filled into the space created between the gaps through the mesh of the net material 3 to form a heat insulating layer 5.