JPS628250Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to insulation materials that are buried in the walls, floors, etc. of structures, and in particular, they are buried inside the finishing materials of walls and floors such as concrete and mortar, and are used under high vacuum conditions. The present invention relates to a hollow vacuum sound-dampening heat insulating material that improves heat-insulating and cold-retaining performance by providing a space, and also improves sound-dampening effects.

Insulating materials are often buried in the walls and floors of structures for insulation purposes. Inside walls and floors such as concrete and mortar, insulation materials such as granular materials such as perlite kneaded into the wall and flooring materials, and sheet-like materials such as asbestos buried inside the wall and flooring materials are used. These are widely used and reduce heat transfer by interposing air into many small voids formed within them.

In general, when insulation is achieved by providing a space, the higher the degree of vacuum in that space, the better the insulation effect, as has been proven with thermos bottles.In this sense, insulation of walls and floors with air interposed However, due to internal air convection and its own heat conduction, its insulation effect is not sufficient.

In addition, even if you simply create a space inside the walls or floor to increase the degree of vacuum in that space in order to increase the insulation effect, it is usually difficult to seal it, and it is difficult to provide the necessary strength if the pressure receiving area is taken into consideration. It is difficult, and even if the desired structure could be achieved, it would be extremely expensive and unsuitable for general walls and floors.

On the other hand, with regard to sound deadening, many methods are used that aim to create a sound deadening effect by creating voids or spaces inside walls and floors and diffusely reflecting sound inside. It is difficult to say that the effect is sufficient compared to the above.

Furthermore, it is difficult to prevent moisture from entering the internal space of these devices intended for heat insulation and sound deadening, and the intrusion of moisture not only significantly reduces their heat insulation and sound deadening effects, but also
In the long term, this will lead to a shortened lifespan due to corrosion.

The hollow vacuum sound-dampening insulation material of the present invention can be applied to general walls and floors made of concrete, mortar, etc., and has dramatically improved insulation properties compared to conventional ones, and also has a sound-dampening function. The purpose is to

In order to achieve the above object, the hollow vacuum sound deadening insulation material of the present invention consists of a hollow closed shell body, and the hollow interior of the shell body has a pressure on the vacuum side from atmospheric pressure. The material of the shell is synthetic resin, glass, ceramics, metal, or a mixture thereof, and this material has a coefficient of thermal expansion close to that of concrete or mortar to increase the adhesion strength with the wall and flooring material. have. In addition, the outer surface of the hollow vacuum sound-absorbing insulation material is textured to increase its own strength and the adhesion strength to the wall and flooring materials. Furthermore, the shape of the shell of the hollow vacuum sound-absorbing insulation material may be formed into a spherical shape to increase its strength against external pressure, or may be formed into any suitable shape in order to have the necessary strength against external pressure and to facilitate laying it out during construction. It is formed into a hollow columnar body having a cross-sectional shape. By laying and burying this hollow vacuum sound-dampening insulation material inside the finished surface of wall and flooring materials, it is now possible to obtain the desired insulation and sound-dampening effects without reducing the strength of the walls or floors. .

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows a cross section of an embodiment in which the hollow vacuum sound-absorbing insulation material of the present invention has a spherical shape, and FIG. 2 shows a cross section of an embodiment in which it has a cylindrical shape. As shown in the figure, the heat insulating materials 1 and 2 are hollow and are formed into closed shells having irregularities on the outer circumferential surface thereof. The hollow interior is kept close to a vacuum due to processing heat and processing vacuum.

As mentioned above, the material of the shell is synthetic resin, glass, ceramics, metal, or a mixture thereof, but if it is subjected to large external pressure, a metal with high compressive strength is used, and in other cases, heat insulation is used. Synthetic resins, glass, ceramics, etc. with excellent sound and sound deadening properties are recommended. Since precision and uniformity of the material of the shell are not required, materials recovered from waste or a mixture thereof can be used as the material of the shell. Further, the material of the shell has a coefficient of thermal expansion close to that of concrete or mortar wall and flooring materials.

When the shape of the shell is spherical, it is suitable when the external pressure is large, and its diameter is preferably about 4 to 100 mm, and in the case of a floor, it is preferably about 40 mm considering the normal floor thickness. On the other hand, if the shape is a hollow columnar body,
It has good workability and allows for a larger cross-sectional area of the hollow vacuum part when buried than in the case of a spherical shape. Furthermore, since the surface is uneven, it has good adhesion to the wall and flooring material, and the size and shape of the unevenness may be arbitrary.

FIG. 3 shows a longitudinal section of an example in which the heat insulating material of the present invention is used on a mortar-finished concrete wall. The inner surface of a concrete wall 4 having reinforcing bars 3 incorporated therein is finished with mortar 5. Inside the mortar wall, hollow vacuum sound deadening insulation materials 1 or 2 are laid out and buried. The mortar 5 may be mixed with a granular heat insulating material such as perlite in order to increase the heat insulating effect of the finished wall.

FIG. 5 shows an example in which a hollow vacuum sound-absorbing thermal material is used for the floor, and it is used by laying it on the finishing material as in the case of the wall.

These hollow vacuum sound-absorbing insulation materials can be widely applied not only to the walls and floors of general buildings, from homes to factories and buildings, but also to insulated rooms, cold storage rooms, pool floors, and large bathtubs at hot springs. .

The effect of the hollow vacuum sound-absorbing insulation material of the present invention on the concrete wall constructed as described above will be explained. In Fig. 4, which is an enlarged view of the part where the hollow vacuum sound deadening insulation material is buried, when heat tries to pass through the cross section A-A, the hollow part 6 of the insulation material has extremely low thermal conductivity because it is close to a vacuum. And since there is almost no convection, it is difficult for heat to pass through. Also, the cross section 7 of the insulation shell part and the cross section 8 of the mortar part in the cross section A-A.
Also, because of its small cross-sectional area, it is difficult for heat to pass through it.Furthermore, if pearlite or the like is mixed in the mortar part, it becomes even more difficult for heat to pass through. Therefore, when heat is transferred from wall surface 9 to wall surface 10 or from wall surface 10 to wall surface 9 in FIG.
Heat passing through the inside of the wall becomes difficult to pass through in the areas lined with hollow vacuum sound-absorbing insulation material, improving the insulation ability of the wall.

On the other hand, looking at the sound deadening performance of a wall with the same configuration, the sound propagating inside the wall is mostly blocked in the hollow vacuum section, and in other parts, the cross-sectional area of the transmission path is small, so it has to go around and pass through. Since the outer peripheral surface of the shell is uneven, it reflects diffusely at various parts and becomes difficult to propagate as it passes around. Therefore, the silencing ability is also improved.

As described above, when using the hollow vacuum sound-damping insulation material of the present invention, the hollow vacuum sound-damping insulation material is laid out and buried inside the finishing material of the wall or floor, creating a space with a high degree of vacuum. Dramatic heat insulation and sound deadening effects can be obtained without reducing the strength of surfaces and structures.

In addition, this hollow vacuum sound-absorbing insulation material can be produced at low cost using easily available materials and is easy to install, so it can be applied to everything from general small houses to large structures, preventing coldness in winter and improving cold retention in summer. can be achieved, and a sound silencing effect can also be obtained if necessary.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of an embodiment in which the hollow vacuum sound-absorbing insulation material of the present invention is spherical, FIG. 2 is a cross-sectional perspective view of an embodiment in which the insulation material is a hollow columnar body, and FIG. 3 4 is a partially enlarged view of FIG. 3, and FIG. 5 is a vertical sectional view of an embodiment in which the heat insulating material is used for the floor.
It is. 1, 2...Hollow vacuum sound deadening insulation material, 3...Reinforcement bar,
4... Concrete, 5... Mortar.

Claims (1)

[Scope of claims for utility model registration] (1) Hollow objects buried in the walls, floors, etc. of structures;
1. A hollow vacuum sound-absorbing heat insulating material comprising a closed shell whose outer circumferential surface is roughened, the hollow interior of the shell having a pressure on the vacuum side due to atmospheric pressure. (2) Utility model registration The hollow vacuum sound-absorbing insulation material described in claim 1, in which the material of the shell is synthetic resin, glass, ceramics, metal, or a mixture thereof. (3) The hollow vacuum sound-absorbing insulation material described in Claim 1 of the Utility Model Registration Claim, in which the material of the shell has a coefficient of thermal expansion close to that of concrete. (4) Utility model registration The hollow vacuum sound-absorbing insulation material described in claim 1, in which the shape of the shell is either spherical or a hollow columnar body having an arbitrary cross-sectional shape.