JP2001303759A - Spacer for reducing solid propagation sound - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of the execution of works of placing type floor or the like with a spacer for reducing solid propagation sound capable of surely preventing the propagation of the vibrational noise with respect to a concrete floor face, and being easily applied. SOLUTION: Plural struts 6 are erected on a concrete floor face 1 to support a joint 4 by these struts 6 in a state that a spacer 5 for reducing the solid propagation sound is inserted between each struts 5 and the floor face 1, and both members are connected and fixed through the spacer 5. The spacer 5 is composed of a rubber piece 51 and an elastic piece 52 for adjusting a level. The spacer is inserted in a state that the elastic piece 52 is impregnated with an adhesive, and the adhesive is cured. The rubber pieces 51 have continuous ventilating holes inside, and these ventilating holes are communicated to the external. When the rubber piece 51 is elastically deformed by the vibration propagated through the rubber piece, it repeatedly releases and absorbs the air, whereby the propagation of the solid propagation sound can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an object for reducing solid-borne sound used to suppress the transmission of vibration and noise from a building floor or the like to upper and lower floors or the like through a concrete frame or the like. It relates to a spacer. The present invention also relates to a structure for reducing sound transmitted through solids using the spacer for reducing sound transmitted through solids and a floor construction method.

[0002]

2. Description of the Related Art In a reinforced concrete building,
A joist floor is constructed by laying a joist on a concrete floor substrate and laying a floor substrate and a finishing material on top of it. A floor or the like constructed by laying materials is adopted.

[0003] In any of the construction methods, when a floor component is in direct contact with a concrete floor slab, vibration applied to the floor surface propagates to an adjacent room or upper and lower floors via the floor slab. Would. Therefore, an elastic spacer made of synthetic rubber or the like is inserted between the floor slab and the floor component such as a bundle, so as to suppress the propagation of such vibration and sound.

[0004]

As described above, in the prior art, vibration and sound transmitted from the floor or wall to the outside are suppressed by using an elastic member such as rubber. It is expected that vibration can be suppressed or reduced from being transmitted to the outside by the elasticity of an elastic member such as rubber. However, according to an experiment performed by the inventor of the present invention, it was confirmed that the intended effect of solid-borne sound cannot be achieved even with an elastic member such as rubber interposed therebetween.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to propose a spacer for reducing solid-borne sound that can effectively suppress not only vibration but also solid-borne sound.

Another object of the present invention is to propose a structure for reducing the sound transmitted through a solid body using such a spacer for reducing the sound transmitted through a solid body.

A further object of the present invention is to propose a floor construction method using such a spacer for reducing solid-borne sound.

[0008]

According to an experiment conducted by the present inventor, it has been found that a solid material such as synthetic rubber is not so effective in reducing solid-borne sound even if it has elastic characteristics. Not confirmed. In addition, even if the porous material has elastic properties, if the internal air bubbles or voids are not continuous, or if the vent on the outer peripheral surface is blocked, sufficient solid sound It was confirmed that no effect was obtained.

The spacer for reducing solid-borne sound of the present invention has been made based on such knowledge, and comprises a rubber piece made of natural rubber or synthetic rubber and a large number of continuous ventilation pores formed therein. A plurality of ventilation holes communicating with a part of the ventilation pores are exposed on the outer peripheral surface of the rubber piece.

Here, it is desirable to have a level adjusting elastic piece made of a porous material adhered and fixed to the rubber piece.

[0011] By interposing the spacer for reducing solid-borne sound of the present invention between the first and second members to be connected, it is possible to suppress solid-borne sound.

In addition, the floor construction method using the solid-borne sound-reducing spacer of the present invention is characterized in that a floor material is supported between a bundle material for supporting the floor material and the floor surface or between the bundle material and the floor material. In the meantime, the elastic piece is impregnated with an adhesive and the adhesive is inserted into the uncured solid-state sound-reducing spacer,
After the adhesive is cured, a floor finishing material is laid on the floor base material to form a floor.

The elastic piece is impregnated with an adhesive between the joist and the floor surface, or between the joist and the bundle material, when the elastic piece is placed near the wall of the floor surface. The solid propagated sound reducing spacer in a hardened state may be inserted.

Next, the spacer for reducing solid-borne sound according to the present invention is obtained by impregnating a porous elastic material having a large number of continuous ventilation holes with an adhesive exhibiting elastic properties after curing. The elastic piece has a predetermined rigidity as a whole while the elastic property of the adhesive after curing is dominant, and furthermore, a part of the continuous ventilation hole is It remains as it is, and it is characterized in that these ventilation holes communicate with the outside.

[0015] In addition to the above-described configuration, it is preferable that a second elastic piece for level adjustment made of a porous material adhered and fixed to the elastic piece is provided.

The structure for reducing sound transmitted through solids using the spacer for reducing sound transmitted through solids according to the present invention is characterized in that the spacer for reducing sound transmitted through solids is interposed between the first and second members to be connected. Features.

The floor construction method using the spacer for reducing solid-borne sound according to the present invention is a method for constructing a floor between a floor surface made of concrete or the like and a floor material, or between a bundle material and a floor surface or between a bundle material and a floor substrate. The second elastic piece for level adjustment is impregnated with an adhesive, and the solid propagation sound reducing spacer in which the adhesive is in an uncured state is inserted between the second elastic piece and the spacer. It is characterized in that a floor is constructed by laying a floor finishing material thereon.

Here, since a joist is generally arranged near the wall of the floor surface, a level adjustment is provided between the joist and the bundle material or between the bundle material and the floor surface. The second
Preferably, the elastic piece is impregnated with an adhesive, and the solid propagation noise reducing spacer in which the adhesive is in an uncured state is inserted.

Next, when a floor is constructed using a solid-borne sound-reducing spacer having no elastic piece for level adjustment, the space between the bundle material for supporting the floor base material and the floor surface is reduced.
Alternatively, the solid-borne sound-reducing spacer is inserted between the bundle and the floor base material, and between the solid-borne sound-reducing spacer and the bundle, or between the solid-borne sound-reducing spacer and the floor surface. In between, a wedge material for level adjustment may be inserted, and the gap into which the wedge material is inserted may be filled with a hot melt adhesive to fill the gap.

In the case where the joist is arranged near the wall of the floor surface, the spacer for reducing solid-borne sound is inserted between the joist and the bundle material or between the bundle material and the floor surface. Between this solid-borne sound reduction spacer and the bundle,
A wedge material for level adjustment may be inserted, and the gap into which the wedge material is inserted may be filled with a hot melt adhesive to fill the gap.

[0021]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 and FIG. 2 show a method of constructing a floor joist in a floor placing method to which the present invention is applied. First, the concrete floor surface 1 and the wall surface 2 on which the floor is constructed are cleaned and blacked out. Next, a temporary stone joist receiving member 3 using scraps or the like is prepared, and is attached to the concrete wall surface 2 at a pitch of, for example, 900 mm using a hot melt adhesive or the like. Thereafter, a level ink is put on the temporary joist receiving material 3 and the joist material 4 is attached to the level ink with a screw, a hot melt adhesive or the like so as to be horizontal.

Next, as shown in FIG. 2, the spacer 5 and the bundle material 6 for impregnating the solid-borne sound impregnated with the adhesive are placed at the bundling position using a hot melt adhesive. The solid transmission sound reducing spacer 5 is a rectangular parallelepiped rubber piece 51 made of natural rubber or synthetic rubber, and a level adjustment of a rectangular parallelepiped shape made of a flexible porous material such as a sponge adhered and fixed to the upper surface of the rubber piece 51. Elastic piece 52 for use.

The rubber piece 51 is an open cell made of synthetic rubber or natural rubber, in which a number of continuous ventilation pores (not shown) are formed. A plurality of ventilation holes communicating with a part of these ventilation pores are exposed. On the other hand, the level adjusting elastic piece 52 is made of a low-density elastic material that is softer than rubber and is porous.

When installing the structure-borne sound reducing spacer 5 of this configuration at the bundling position, it is installed on the floor 1 with the rubber piece 51 positioned below. A hot melt adhesive is applied to the lower end surface 51a of the rubber piece 51 facing the floor surface 1 in advance, and is adhered and fixed to the floor surface 1. The level adjusting elastic piece 51 is impregnated with an adhesive exhibiting predetermined elastic properties after curing. Also, the upper end surface 6a of the bundle 6 facing the back surface of the joist 4 is bonded and fixed to the back surface with a hot melt adhesive.

The level-adjusting elastic piece 5 of the spacer 5 for reducing solid-borne sound, which is impregnated with an adhesive and is in an uncured state.
Since 1 is flexible, it can be crushed to a thickness corresponding to the gap between the floor surface 1 and the lower end surface 6b of the bundle 6, and can be inserted between them.

After being inserted, the level adjusting elastic pieces 5
1 swells back to its original thickness due to its elastic properties. As a result, there is a state where the spacer 5 for reducing solid-borne sound is inserted between the bundle 6 and the floor surface 1 without any gap. Thereafter, when the adhesive is cured, the solid transmission sound reducing spacer 5 is firmly bonded and fixed to the bundle 6 via the level adjusting elastic piece 52 having a predetermined rigidity. Further, the elastic piece 51 of the spacer 5 for reducing the sound propagating through the solid is adhered and fixed to the joist 4 by a hot melt adhesive applied at the time of insertion.

As a result, the spacer 5 for reducing solid-borne sound is used.
Functions as a spacer between the joist 4 and the bundle 6 and also functions as an adhesive fixing means for adhesively fixing them.

Further, the rubber piece 51 has a predetermined elastic characteristic, and a continuous ventilation hole remains therein, which communicates with the outside. Therefore, the vibration and the sound from the floor surface are caused by the elastic vibration of the rubber piece 51 and the release of air accompanying the vibration.
It is effectively reduced by the repetitive movement of the absorption action. According to the experiments of the present inventors, when the air holes formed in the outer peripheral surface of the rubber piece 51 are crushed by filling a large amount of the adhesive, the solid-borne sound reduction effect may be extremely reduced. confirmed.

In the same manner, the joists are similarly supported on the floor surface by the bundle 6 and the solid-borne sound-reducing spacer 5.
By placing a floor base material on top of it, a floor is constructed. In the floor configured as described above, the solid-borne sound reducing spacer 5 is interposed between the floor surface 1 and the bundle 6.
Also, the joist 4 is substantially separated from the wall surface 2. Bundle 6
Also completely separated from the wall.

Accordingly, vibration and noise from the floor surface are absorbed or suppressed by the elastic action of the solid-borne sound reducing spacer 5. In particular, solid-borne noise is reliably reduced. Also, vibration and noise from the wall surface can be completely shut off. Therefore, a floor structure excellent in sound insulation performance and vibration isolation performance can be realized.

In the above example, the spacer 5 for reducing solid-borne sound is inserted between the bundle 6 and the floor 1, but the spacer 5 for reducing solid-borne sound is inserted between the bundle 6 and the joist 4. You may insert it. Further, the present invention can also be used as a joint structure of members constituting a floor other than the floor.

Furthermore, in the above example, the elastic piece 52 for level adjustment is attached to the rubber piece 51,
It is also possible to use only the rubber piece 51 as a spacer for reducing solid-borne sound. In this case, as shown in FIG. 3, the bundle material 6 is bonded and fixed to the back surface of the joist material 4 attached to the temporary joist receiving material with a hot-melt adhesive, and a solid-state sound-reducing material composed of only rubber pieces is used. The spacer 5A is similarly adhered and fixed to the floor surface 1 by a hot melt adhesive. After that, the wedge pieces 7A and 7B made by using the scraps and the like are inserted between the bundle material 6 and the solid transmitted sound reducing spacer 5A,
The level of the joist 4 is adjusted by adjusting the insertion amount. Finally, the gap 8 between the bundle 6 formed by inserting the wedge pieces 7A and 7B and the spacer 5A for reducing solid-borne sound is filled with a hot melt adhesive. When the hot melt adhesive cures, the joist 4
Is supported on the floor via the bundle 6 and the solid-borne sound reducing spacer 5A.

On the other hand, as a spacer for reducing solid-borne sound, a flexible porous elastic material such as a sponge having a large number of continuous ventilation holes is impregnated with an adhesive exhibiting elastic characteristics after being cured and cured. And a level-adjusting second elastic piece made of a flexible porous elastic material such as a sponge bonded to the lower surface of the elastic piece. it can. in this case,
The first elastic piece has a predetermined rigidity as a whole while the elastic properties of the cured adhesive are dominant,
In addition, part of the continuous vent remains intact,
What is necessary is just to let these ventilation holes be in the state which communicated with the exterior.

[0035]

As described above, the spacer for reducing solid-borne sound according to the present invention has a predetermined elastic property, and has continuous ventilation pores inside, and these ventilation pores communicate with the outside. Rubber pieces or elastic pieces that are in a broken state. Therefore, in the spacer for reducing solid-borne sound of the present invention, the rubber piece or the elastic piece elastically deforms to absorb vibration, and at the time of the elastic deformation, discharges air from the inside to the outside and releases air from the outside to the inside. The suction is repeatedly performed to reduce the solid-borne noise.

Therefore, the use of the spacer for reducing solid-borne sound of the present invention makes it possible to efficiently reduce solid-borne sound as well as vibration.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram for illustrating a method of constructing a placing floor constructed according to the method of the present invention.

FIG. 2 is an explanatory diagram showing a joist material supported by a bundle material and a spacer for reducing solid-borne sound.

FIG. 3 is an explanatory view showing a joist supporting structure whose level has been adjusted using wedge pieces.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Concrete floor surface 2 Concrete wall surface 3 Temporary mound joist receiving material 4 Junk material 5 and 5A Solid propagation sound reduction spacer 51 Rubber piece 52 Elastic piece for level adjustment 6 Bundle material 7A, 7B Wedge piece 8 Filled with hot melt adhesive Gap

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission Date] May 18, 2000 (200.5.1)
8)

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG. 2

FIG. 3

FIG.

Claims (14)

[Claims] 1. A rubber piece made of natural rubber or synthetic rubber, and a large number of continuous ventilation pores formed inside the rubber piece. A part of the ventilation pore is provided on the outer peripheral surface of the rubber piece. A plurality of ventilation holes communicating with the first member are exposed. 2. The spacer according to claim 1, further comprising a level-adjusting elastic piece made of a porous material adhered and fixed to the rubber piece. 3. A structure for reducing solid-borne sound, wherein the spacer for reducing solid-borne sound according to claim 1 is interposed between the first and second members to be connected. 4. A floor construction method using the solid-borne sound-reducing spacer according to claim 2, wherein the bundle material supports a floor base material and a floor surface or the bundle material and the bundle material. An adhesive is impregnated into the level-adjusting elastic piece between the floor base material and the solid propagation noise reducing spacer in which the adhesive is in an uncured state, and after the adhesive is cured, the floor base is cured. A floor construction method characterized by forming a floor by laying a floor finishing material on the material. 5. A floor construction method using the spacer for reducing solid-borne sound according to claim 2, wherein a joist is arranged near a wall of the floor surface, and between the joist and the bundle material or the joist. A floor construction method, comprising: impregnating the level adjusting elastic piece with an adhesive between the bundle material and the floor surface; and inserting the solid propagation noise reducing spacer in which the adhesive is in an uncured state. 6. An elastic piece obtained by impregnating a porous elastic material having a large number of continuous ventilation holes with an adhesive exhibiting elastic properties after curing, and curing the elastic piece. The elastic property of the adhesive is dominant, and the adhesive has predetermined rigidity as a whole, and furthermore, a part of the continuous vents remains as they are, and these vents communicate with the outside. A spacer for reducing solid-borne noise. 7. The spacer according to claim 6, further comprising a second elastic piece for adjusting a level made of a porous material adhered and fixed to the elastic piece. 8. A structure for reducing solid-borne sound, wherein the spacer for reducing solid-borne sound according to claim 6 is interposed between the first and second members to be connected. 9. A floor construction method using the solid-borne sound-reducing spacer according to claim 7, wherein the floor material is supported between a bundle for supporting an underfloor material and a floor surface, or between the bundle and the floor material. An adhesive is impregnated into the second elastic piece for level adjustment between the floor base material and the solid propagation noise reducing spacer in which the adhesive is in an uncured state, and after the adhesive is cured. A floor construction method, wherein a laying floor is constructed by laying a floor finishing material on the floor base material. 10. A floor construction method using the solid-borne sound-reducing spacer according to claim 7, wherein an edge joist is arranged near a wall of the floor surface, and between the edge joist and the bundle material or the edge joist. Floor construction characterized in that the second elastic piece for level adjustment is impregnated with an adhesive between the bundle material and the floor surface, and the solid propagation noise reducing spacer in which the adhesive is in an uncured state is inserted. Law. 11. A floor construction method using the solid-borne sound-reducing spacer according to claim 1, wherein the bundle material for supporting an underfloor material and a floor surface, or the bundle material and the bundle material. Insert the spacer for reducing solid-borne sound between the base material of the floor, and adjust the level between the spacer for reducing solid-borne sound and the bundle or between the spacer for reducing solid-borne sound and the floor surface. A floor construction method characterized by inserting a wedge material, and filling a gap into which the wedge material is inserted with a hot melt adhesive. 12. A floor construction method using the solid-borne sound-reducing spacer according to claim 1, wherein an edge joist is arranged near a wall of the floor surface, and between the edge joist and the bundle material or the edge joist. The spacer for reducing solid-borne sound is inserted between the bundle and the floor surface, and a wedge for level adjustment is inserted between the spacer for reducing solid-borne sound and the bundle, and the wedge is inserted. Filling the gap by filling the gap with a hot melt adhesive. 13. A floor construction method using the solid-borne sound-reducing spacer according to claim 6, wherein the floor material is supported between a bundle for supporting a floor base material and a floor surface, or between the bundle and the floor. Insert the spacer for reducing solid-borne sound between the base material of the floor, and adjust the level between the spacer for reducing solid-borne sound and the bundle or between the spacer for reducing solid-borne sound and the floor surface. A floor construction method characterized by inserting a wedge material, and filling a gap into which the wedge material is inserted with a hot melt adhesive. 14. A floor construction method using the solid-borne sound reducing spacer according to claim 6, wherein a joist is arranged near a wall of the floor surface, and between the joist and the bundle material or the joist. The spacer for reducing solid-borne sound is inserted between the bundle and the floor surface, and a wedge for level adjustment is inserted between the spacer for reducing solid-borne sound and the bundle, and the wedge is inserted. Filling the gap by filling the gap with a hot melt adhesive.