JPS6156737B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vibration/sound insulating material and a dry floating floor construction method.

In recent years, vertical noise in apartment complexes and neighborhood noise in residential areas has become a major social problem.
Various measures have been taken. Among them, the dry floating floor construction method is attracting attention as a countermeasure against vibration and low-frequency noise, but both methods require large gaps from the slab to the floor finishing material and layer various types of materials such as vibration-proofing materials, sound-insulating materials, and sound-absorbing materials. However, there are various drawbacks such as the complexity of construction and increased cost, and it is still not satisfactory.

For example, in the case of a reinforced concrete building, in the dry method (Figure 1) the top surface of slab 1 is 300 mm x 600 mm.
The vibration isolating material 2 is arranged at the pitch of , and is fixed to the joist 3 provided on it, and the space formed by the slab 1 and the plywood 4 provided on the joist 3 is filled with glass wool or rock wool 5, and the surrounding wall is A sound insulating material 6 and a floor finishing material 7 are provided on the upper surface of the plywood 4 with a cushioning material 8 interposed therebetween, and the thickness from the slab 1 to the floor finishing material 7 must be at least 150 mm to 200 mm. 22 is a baseboard.

In the wet floating floor construction method (Fig. 2), slab 1
25mm x 2 to 25mm x 4 layers of 120Kg/ ^m3 glass wool or rock wool are provided on the top surface, and a mortar layer 11 of 100mm to 50mm with a polyethylene film 9 and a built-in welded wire mesh is placed on top of the polyethylene film 9, and is used for floors such as carpets. A finishing material 7 is provided.

In the case of a wooden building (Fig. 3), plywood 4, joist 3, vibration isolating material 2, plywood 4a, and sound insulating material 6 are stacked on top of the main drawer 3a in this order, and floor finishing material 7 is installed, and plywood 4 and The space formed by the plywood 4a is filled with glass wool or rock wool 5, and a buffer material 8 for standing up is provided on the peripheral wall.

The present invention solves the above-mentioned drawbacks, and provides a vibration and sound insulation material and a dry floating floor construction method that are easy to construct and exhibit excellent vibration and sound insulation effects.

The vibration/sound insulating material of the present invention will be explained according to the embodiments shown in the drawings.

In the embodiment shown in FIG. 4, a spherical core material 12 is made of a high-density material such as iron, copper, or lead, and a rubber material 13 is provided on the circumferential surface of the core material 12 to form a spherical body.

FIG. 5 shows a spherical core material 12a made of a high-density material such as iron, copper, or lead with a plurality of protrusions 14 on the circumferential surface, and glass wool, rock wool, powdered rubber, or The hair portion 15 is formed by electrostatically flocking natural or synthetic fibers, bonding with adhesive, or raising the rubber surface.
It is covered with

FIG. 6 shows a spherical core material 12 made of a high-density material such as iron, copper, or lead, and a rubber material 13 on the circumferential surface of the core material 12.
It is a spherical body having a plurality of folds and protrusions 16 on its circumferential surface. The circumferential surface of this spherical body is
5 (not shown).

FIG. 7 shows an embodiment of the dry floating floor construction method of the present invention, in which the spherical vibration-proofing and sound-insulating materials 17 shown in FIGS. If necessary depending on the environment, a sound insulating sheet 19 is provided and a floor finishing material 20 is provided.
Reference numeral 21 denotes a buffer material for starting up provided on the peripheral wall.

In the case of wooden structures (Fig. 8), as well as in the case of reinforcing bars,
The plywood 18 is made by arranging spherical vibration-proof and sound-insulating materials 17 in parallel on the upper surface of the plywood 18 on top of the main drawer 3a without requiring the trouble of providing a hollow layer or filling the hollow layer with glass wool, rock wool, etc. Floor finishing material 2
It is sufficient to set 0.

Incidentally, if necessary depending on the boundary, a sound absorbing material or a sound insulating material may be appropriately layered on the plywood 18.

Next, the effects of the vibration/sound insulating material and dry floating floor construction method of the present invention are illustrated as follows.

(1) Because they are spherical, when installing them side by side on the top of a slab, you can naturally install them side by side by rolling a large number of them one after another, without the need for the trouble of fixing them to the joists as in the past; (2) There is no need to construct various laminated materials according to the area and shape of the floor, or to provide a hollow layer, and it can be easily adapted to any shape of the floor surface by simply rolling the spherical body.

(3) Since they are spherical, when they are placed side by side, gaps are created and an air layer is formed, providing heat retention, insulation, and sound absorption effects.

(4) If the surrounding surface is covered with hairs, the adjacent hairs intertwine and become stable, and the air layer increases, increasing heat retention, insulation, and sound absorption effects.

(5) The sound absorption area is expanded by arranging the spherical bodies in parallel.

(6) Since the core material is made of a high-density material, a sound insulation effect based on the weight law can be obtained (lead is most preferable), and at the same time, a vibration isolation effect can be obtained due to the rubber material.

(7) If a protrusion is provided on the core material, it will be easier to adhere a rubber material to the surrounding surface.

(8) If uneven parts such as folds and protrusions are formed on the circumferential surface of the spherical body, the sound absorption area will be expanded and its elasticity will be able to accommodate even if the top surface of the slab is not perfectly level. An insulating effect can be obtained by point contact with.

In addition, although the example uses a rubber material as the elastic material layer, it is of course possible to use a soft vinyl chloride resin, polyethylene resin, or the like.

As described above, according to the present invention, construction is easy;
Moreover, various excellent effects can be obtained, and work efficiency can be significantly improved.

[Brief explanation of the drawing]

Figures 1 to 3 show conventional floating floor construction methods, Figures 4 to 6 show examples of the vibration and sound insulating material of the present invention, and Figures 7 to 8 show examples of the dry floating floor construction method of the present invention. 1: Slab, 2: Anti-vibration material, 3: Joist, 3a: Dough, 4, 4a: Plywood, 5: Rock wool or glass wool, 6: Sound insulation material, 7, 20: Floor finishing material,
8, 21: Stand-up buffer material, 12, 12a: Core material,
13: Rubber material, 14: Protrusion of core material, 15: Hair-like part, 16: Protrusion of rubber material, 17: Vibration and sound insulation material, 1
8: Plywood, 22: Baseboard.

Claims (1)

[Claims] 1. A core made of a high-density material such as iron, copper, or lead,
A vibration-proofing and sound-insulating material characterized in that a layer of an elastic material such as a rubber material is provided on the circumferential surface of the core material to form a spherical body. 2. The vibration-proofing and sound-insulating material according to claim 1, characterized in that the peripheral surface of the spherical body is provided with irregularities. 3. The vibration-proof and sound-insulating material according to claim 1 or 2, wherein the peripheral surface of the spherical body is covered with a hair-like part by flocking, raising, etc. 4 The core material is made of high-density materials such as iron, copper, and lead,
A dry floating floor construction method characterized by providing a layer of elastic material such as a rubber material on the circumferential surface of the core material to form a spherical vibration-proofing and sound-insulating material on the upper surface of the slab, and laying appropriate flooring material on top of it. .