JPS6117152Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a concrete subfloor material for residential buildings, and provides a material that can easily be used for piping construction such as gas pipes on concrete floors, and that can also ensure sufficient strength as a subfloor material. Trying to.

Conventionally, the flooring in concrete houses has been constructed by assembling joists, etc., but this has the drawbacks that when the wood dries, it makes a squeak sound, the impact sound of the floor is easily transmitted downstairs, and it takes a lot of time to construct. In short,
This method has the drawback of high costs, as well as high labor costs and the high price of wood for the joists, so recently, instead of the joist construction method, a construction method in which a base material made of polyethylene resin foam is laid on the concrete floor surface has become popular.

However, in the method of laying the base material, the concrete floor surface and the foam body come into close contact with each other, so in order to install piping such as a gas pipe on the concrete floor surface, a passage for piping is required in the foam body. For this reason, it is necessary to scrape the foam so that it follows the piping at the construction site, or use a base material with communication grooves formed over the entire length on one side of the foam, and then install the piping along the communication grooves. ing. However, the above method presents the following problems regarding the strength of the foam and its construction. That is, in the former case, the passages for the piping are cut only where necessary, so there is no practical problem with the strength of the base material, but it is troublesome to cut the passages along the pipes and increases the number of construction steps. In the latter case,
Although it is not necessary to cut down the piping passage at the construction site,
Due to the reduced wall thickness and lack of integrity due to the communication grooves, the strength of the base material is insufficient, and the ends of the communication grooves may easily tear due to unexpected shocks during transportation.
Alternatively, when an impact or concentrated load is applied during construction, the ends of the communicating grooves may also tear, which is a practical problem.

Therefore, in this invention, we provide a concrete subfloor material for residential buildings that solves the above-mentioned conventional drawbacks and problems.As for its structure, a concave groove is formed on one side of a plate-shaped body made of synthetic resin foam. It is characterized in that a rib-shaped reinforcing portion for closing the groove is formed at least at an end of the groove.

Next, embodiments of this invention will be illustrated below with reference to the drawings.

1 is a plate-shaped body made of a synthetic resin foam such as foamed polyethylene; 2 is a groove formed on one side of the plate-shaped body 1; in the case of the figure, grooves 2 are formed vertically and horizontally, and the cross section is The groove is shown to have a substantially semicircular shape, and the depth of the groove is sufficient to allow piping such as a gas pipe to pass through. Furthermore, the groove 2 has a rib-shaped reinforcing portion 3 at the outer end portions 21, 21.
are formed, and both ends thereof are closed to ensure the integrity of the plate-like body 1, and in particular, the ends 21, by forming the groove 2,
This is intended to prevent the strength from decreasing at the 21st part. The rib-shaped reinforcing part 3 is made of the same material as the plate-shaped body 1, and it is recommended that the thickness of the rib-shaped reinforcement part 3 is approximately 15 to 30 mm in order to ensure pressure resistance and to prevent the rib from forming during piping construction, which will be described later. This is a suitable implementation when removing the shaped reinforcing portion 3 by breaking it.

The plate-shaped body 1 configured as described above is a floor surface 5 of a concrete house with a mortar finish etc.
It is used as a subfloor material in a structure in which it is placed directly on top of the floor, plywood 60 etc. is laid on the top surface, and tatami mats 70 etc. are laid on top of it (see Figure 3).
In areas where piping construction such as gas pipes is required, the rib-shaped reinforcing portion 3 can be broken and removed (see Fig. 2), and the piping can be installed along the groove 2 (see Fig. 3).

Note that the base material according to this invention can be implemented with various modifications; for example, it is also possible to form the rib-shaped reinforcing part 3 in the middle of the groove 2, so as to further increase the strength. (see figure 4),
Further, the grooves 2 may be formed only in either the vertical or horizontal directions, or they may be formed in multiple rows in both the vertical and horizontal directions to accommodate various piping constructions such as multiple piping or bent piping. Yes (see Figure 5).

As described above, according to the concrete subfloor material for residential buildings of this invention, the groove 2 is formed on one side of the plate-like body 1 made of a synthetic resin foam, and at least the ends 21 and 21 of the groove 2 are formed. Since the rib-shaped reinforcing part 3 is formed so as to close the part, if the rib-shaped reinforcing part 3 is broken and removed during piping construction, the concave groove 2 can be removed.
This means that piping can be constructed along the lines, which is very convenient since there is no need to cut the troublesome passage for piping at the construction site, and it is also very convenient because there is no need to cut down the troublesome passage for piping at the construction site. The decrease in the strength of the base material can be compensated for by the rib-shaped reinforcement part 3, and in particular, the concave groove 2
Since the strength of the ends 21, 21 of is ensured sufficiently,
Unlike the conventional one that formed a simple communication groove,
There is no inconvenience in handling such as the ends of the ribs being torn due to shocks during transportation, and in addition, only the parts of the rib-shaped reinforcing part 3 necessary for piping construction are removed and used, making it relatively easy to use. The strength of the base material is well maintained, and there will be no inconvenience such as the groove ends tearing even if subjected to shock or concentrated loads.
Therefore, it is possible to provide an extremely effective concrete subfloor material for residential buildings that can be easily adapted to the construction of piping such as gas pipes on a concrete floor surface, and has sufficient practical strength as a substratum material.

[Brief explanation of the drawing]

The figure illustrates an embodiment of this invention,
Fig. 1 is a perspective view, Fig. 2 is a perspective view showing the embodiment before installation and use, Fig. 3 is a sectional view showing the case when it is installed and used, and Figs. 4 and 5 are perspective views showing modified examples. It is. DESCRIPTION OF SYMBOLS 1... Plate-shaped body, 2... Concave groove, 3... Rib-shaped reinforcement part, 50... Concrete floor surface, 60... Plywood,
70...tatami.

Claims (1)

[Claims for Utility Model Registration] 1 A plate-like body made of synthetic resin foam has a groove formed on one side, and at least an end of the groove is provided with a rib-shaped reinforcing portion that closes the groove. A concrete residential flooring material characterized by forming: 2. The concrete residential flooring material according to claim 1 of the above-mentioned utility model registration claim, in which a rib-shaped reinforcing portion is also formed in the middle of the groove. 3. The concrete residential flooring material according to claim 1 or 2 of the above-mentioned utility model registration claim, which has grooves formed vertically and horizontally. 4. The concrete subfloor material for residential buildings as set forth in claim 1 or 2 of the above utility model registration claim, which comprises grooves formed in double rows in both the vertical and horizontal directions.