JPH0633584A - Soundproof block shaped supporting body and double flooring structure - Google Patents

Abstract

PURPOSE:To freely provide wirings and pipings and improve soundproof performance or residential comfortableness, concerning the soundproof construction of a double flooring in which floor bed material is arranged on a floor foundation bed such as ALC, plywood, particle board built on concrete floor slabs, steelwork, floor joists, and the like through a plurality of supporting bodies, and pipings and wirings can be-performed therein. CONSTITUTION:This block shaped supporting bodies 1 are arranged on a floor foundation bed 5 so as to provide a space considering installation of pipings and the like on the floor foundation bed 5 and support a floor bed material 4, and it is provided with a same sort or different sorts of nonwoven fabric layers 2 and a same sort or different sorts of high rigid layer 3. It is favorable that the height of the supporting body is 20mm-250mm, and the length and the breadth are respectively 80mm-500mm. A soundproof double flooring construction is constituted by the use of the block shaped supporting bodies 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soundproof block-like support and a double floor structure, and more specifically, a floor base such as a concrete floor slab surface, ALC, plywood, particle board, etc. constructed on a steel frame or joist. The present invention relates to a plurality of soundproof block-like supports arranged above and supporting a floor base material, and a double-floor soundproof structure capable of piping and wiring in a space between the supports.

[0002]

2. Description of the Related Art A double-floor structure is mainly used for floors of middle and high-rise buildings and condominiums, and a floor base material is arranged on a floor base consisting of concrete floor slab surface, ALC floor surface, etc. by a plurality of supports. A space is formed on the lower surface of the floor base. This space has the advantage that it can be used as a space for electric wiring and water supply piping, and that construction of these can be done easily. As the support for the above-mentioned floor base material, metal legs and resin legs having a screw structure so that the height can be adjusted have already been put on the market, and a vibration absorber such as rubber is added to the tip end to impart soundproofing performance. It is generally provided. On the other hand, apart from these, there is also a method in which a foamed resin plate is laid under the floor base material over the entire surface of the floor base, and notches are formed only in the portions that require piping.

[0003]

However, the double floor using the metal legs and the resin legs uses a rubber or the like having extremely low hardness as the vibration absorber in order to obtain soundproofing performance, and therefore, as a floor. There is no choice but to finish it softly. As a result, there is a problem in habitability such that the floor may sink when walking. Further, in the method using the foamed resin plate, although the habitability is solved to some extent, there is a problem that sufficient soundproof performance cannot be obtained.

In view of the above problems, a space for piping is provided and further soundproof performance is provided.
There is 5. This is a floor structure that combines a base panel and a finish panel in which a rubber-based or asphalt-based polymer material is integrated as a cushioning material on the lower surface of a hard base plate, and the base panels are arranged in one direction at regular intervals. This is a structure in which a space is provided only in one direction. The inventors of the present invention have described the above-mentioned JP-A-2-
As a result of a detailed examination of 200965, although the problem of habitability has been solved to some extent, a panel integrated with a cushioning material made of the polymer material meets the demand for high-performance soundproofing performance such as that said today. Is not enough, the degree of freedom of piping etc. is low in a narrow space that extends only in one direction, and since there is no full-throw-out pasting plate under the finishing panel, the placement of the finishing panel matches the placement of the base panel. It has been found that there are problems such as being restricted by the construction, and when it is necessary to change the design of the underfloor space due to circumstances such as piping work, it is difficult to change it freely on site.

Therefore, it is an object of the present invention that wiring and piping can be freely provided on a floor base,
It is to provide a double-floor structure having excellent soundproofing performance and excellent habitability.

[0006]

[Means for Solving the Problems] In order to solve the above problems, the present inventors have conducted diligent research on a double floor,
By providing a block-shaped support having one or more layers made of the same or different specific non-woven fabric and one or more layers made of the same or different high-rigidity material, excellent walking feeling as a floor material Moreover, they have found a double floor structure that has an excellent effect on improving the soundproofing performance.

That is, the present invention is a block-shaped support for supporting a floor base material, which is arranged in plural on the floor base in order to provide a space in consideration of providing piping or the like on the floor base,
A soundproof block-like support characterized by having one or more layers made of the same or different type of non-woven fabric and one or more layers made of the same or different type of highly rigid material; and providing pipes or the like on the floor base. A double-floor structure including a floor base material via a plurality of block-shaped supports arranged on the floor base in order to provide a space, and the floor base material is a layer 1 made of the same or different material. It is characterized by comprising at least one layer, and the block-shaped support has at least one layer made of a non-woven fabric using the same or different crimp type fibers and at least one layer made of the same or different rigid material. It is a soundproof double floor structure.

The present invention will be described in detail below. In the present invention, a block-shaped support having a specific nonwoven fabric is applied to a floor structure, and the soundproof double floor structure is a block-shaped support having a specific nonwoven fabric on a floor base. It has a structure in which a floor base material is placed on top and then a floor surface finishing material is laid.

In the soundproof double floor structure of the present invention, since the floor impact sound can be reduced by the specific block-shaped support and the floor base material, the floor surface finishing material can improve the conventional lightweight floor impact sound. It is noteworthy that even the materials that have been considered to be extremely difficult to use as the finishing materials can be used. For example, a wooden floor material such as a single-layer flooring or a composite flooring, a stone material, an inorganic floor material such as a ceramic tile can be used. Of course, the carpet,
The use of finishing materials such as tatami mats, corks, linoleums, etc., which themselves have the ability to improve lightweight floor impact sound, does not prevent them.

The floor base material used in the present invention is the base of the floor surface finishing material and is one of the important constituent elements of the present invention. The floor base material can be appropriately selected as long as it is on the block-shaped support placed below the floor base material and has a rigidity enough to support the floor surface finishing material and the load on the floor. However, it is necessary to use a board with high rigidity that does not cause extreme vibration by itself due to impact force. For example, when using plywood or particle board, it is desirable that the thickness is 9 mm or more, preferably 12 mm or more. Other materials that can be considered as the floor base material include, for example, MDF, wood cement board, and ALC.
There are boards, calcareous boards, cement boards, metal panels, etc. Even if the rigidity is insufficient by itself, if rigidity is exhibited by stacking two or more layers having the same thickness or different thicknesses and made of the same material or another material, Can be used. Further, the plate material can be used by increasing the rigidity by reinforcing honeycomb, frame material, crosspiece material, and the like, and as a method for improving the vibration-damping property of the floor base material, the base material is made of a rubber sheet or an asphalt sheet. It is also possible to use the one to which the material is attached.

Even if the rigidity of the floor base material is slightly insufficient, if the required rigidity can be obtained by integrating with the floor surface finish material, it is interpreted as satisfying the above requirements. Further, when one unit of the floor surface finishing material is large and the rigidity is high, there are cases where the finishing material can be fixed to the block-shaped support of the present invention without interposing the floor base material. It is interpreted as a special case in which the floor base material and the floor surface finishing material are integrated.

The block-shaped support is composed of a plurality of layers, and it is essential that at least one layer is a non-woven fabric.
As the non-woven fabric, a needle type, a spun bond type, a heat fusion type and the like are used alone or in combination, and as the fiber, there may be mentioned straight hair type fibers, hollow type fibers and crimp type fibers, but especially crimp It is preferred to use fibers that are prominent. As a fiber that is significantly crimped (crimped fiber), there is a latent crimped fiber that is a single fiber obtained by simultaneously spinning two kinds of resins having different thermal characteristics such as polyester or polypropylene. The crimp of the fiber is remarkably developed by heat treatment. Generally, a non-woven fabric made of latently crimped fibers and heat-treated to crimp the fibers is put on the market. In the present invention, it is desirable to use a nonwoven fabric containing 40% or more of the fibers. If it is less than 40%, it becomes difficult to obtain the desired soundproofing performance. The non-woven fabric not only has moderate elasticity and can absorb impact vibrations, but also
Friction between fibers can also absorb impact by converting impact energy into heat energy. The thickness of the layer made of the non-woven fabric is preferably 3 mm or more and 50 mm or less, and more preferably 5 mm or more and 20 mm or less, in consideration of soundproofing performance and habitability such as walking feeling. Thickness is 3
If it is less than 50 mm, the desired soundproofing performance cannot be obtained, and if it exceeds 50 mm, even if the material of the non-woven fabric is taken into consideration, the living performance and floor strength will be impaired. The shape of the non-woven fabric is not particularly specified. Starting from flat ones, looped naps like carpets, naps raised one by one, irregular shapes, and wavy shapes Various shapes, such as the ones that are used, are used.

The other support components support a floor surface finishing material, a floor load and a floor underlaying material laid on the block-like support, and are not locally deformed in order to evenly distribute the load applied to the nonwoven fabric. Various materials such as plywood, particle board, metal plate, and noncombustible lightweight composite plate (for example, those disclosed in Japanese Examined Patent Publication No. 56-40116) can be used in appropriate shapes as long as they have a certain degree of rigidity and thickness. It is possible to select, but it is not suitable that it will be destroyed by the impact applied to the floor even if it has a predetermined rigidity.

The height of the block-shaped support is 20 mm or more and 250 mm in consideration of the purpose of passing piping through the space under the floor.
In the following, the length is preferably 40 mm or more and 150 mm or less, and the non-woven fabric layer and the rigid body layer may be laminated at appropriate positions. Also,
The vertical and horizontal dimensions are preferably 80 mm to 500 mm in consideration of the area occupied by the floor area, which will be described later, for the purpose of holding the floor base material and reducing the contact area with the floor base. If the dimensions of the block-shaped support are too small,
The load applied from the floor base material or the like concentrates the load on the non-woven fabric, which is not preferable, and it becomes difficult to maintain the floor base material with good stability.

The support is laid on the floor base so that the area occupied by the support is 7% to 60%, preferably 10% to 40% of the floor area on which the support is arranged. 7%
If it is less than 60%, the flexure of the floor base material will increase when a load is applied, and the apparent rigidity will decrease. If it exceeds 60%, the ground contact area to the floor base will be large and the floor vibration transmission area will be large, resulting in sound insulation. The performance deteriorates, which is not preferable. It is desirable that the support is laid on the floor base efficiently in consideration of fixing the floor base material by a highly safe method.

In the present invention, a sound absorbing material such as glass wool or rock wool can be placed in the space formed between the supports as one means for enhancing the soundproofing performance. Placing the sound absorbing material can enhance the soundproofing performance without changing the strength of the entire support, and is one of the effective means that does not impair the feeling of walking.

An embodiment of the present invention is shown in FIGS.
1 to 5 are cross-sectional views of a block-shaped support, a floor base material and a surface finishing material on a floor base, and FIG. 6 is a plan view in which the floor surface finishing material is omitted. FIG. 7 is a partially cutaway perspective view of the support arrangement shown in FIG. 6 in the sectional configuration of FIG. In these figures, 1 is a block-shaped support, 2 is a non-woven fabric, 3 is a rigid body with high rigidity, 4 is a floor base material, 5 is a floor base,
6 is a sound absorbing material, 7 is a surface finishing material, and 8 is underfloor piping.

FIG. 1 shows a block-shaped support 1 on a floor base.
In the cross-sectional configuration diagram of the floor base material 4 and the surface finish material 7, a block-shaped support 1 is formed by laminating a highly rigid material (rigid body) 3 on a nonwoven fabric 2. FIG. 2 is a cross-sectional configuration diagram similar to FIG. 1, but the block-shaped support 1 is formed by laminating nonwoven fabrics 2. FIG. 3 is a cross-sectional configuration diagram similar to FIG. 1, but the block-shaped support 1 is formed by laminating a nonwoven fabric 2 between rigid bodies 3 and 3. FIG. 4 is a sectional view similar to FIG. 3, but the block-shaped support 1 is formed by laminating nonwoven fabrics 2 and 2 between rigid bodies 3, 3 and 3. FIG. 5 shows that in the structure of FIG. 3, the sound absorbing material 6 is arranged around the support. FIG. 6 shows an example of the arrangement of the supports below the floor base material and an example of the pipe 8 passing between the supports. FIG. 7 is a partially cutaway perspective view for explaining the usage mode when the support member arrangement of FIG. 6 is performed in the sectional configuration of FIG. It is needless to say that these illustrated modes are merely examples, and the modes can be modified in various ways within the scope of the present invention without sticking to these figures.

[0019]

In the soundproof double floor structure of the present invention, the specific non-woven fabric forming the block-shaped support does not directly transmit the floor impact sound to the floor base, and particularly the ground contact area between the support and the floor base is kept below a certain level. By this, in addition to being able to reduce the floor impact sound, each component of the double floor structure such as the floor base material and the support is in a relationship in which it is difficult to resonate with each other with respect to the floor impact sound of various frequencies. It is considered that the floor impact sound can be effectively reduced.

[0020]

EXAMPLES Examples of the present invention will be described below together with comparative examples. (Example) A floor structure of the present invention was constructed on a 150 mm concrete floor slab surface. The surface finishing material was a color floor with a thickness of 12 mm, and the floor base material was 20 mm particle board. The rigid layer of the block-shaped support is composed of two layers of 15 mm plywood and 20 mm particle board, and the non-woven fabric layer is composed of non-woven fabric using latent crimped fibers of polyester with a thickness of 10 mm. The block-shaped support has a width of 150 mm. The distance was 200 mm, and the interval between the block-shaped supports was 400 mm. The space between the supports is 10 kg / m ³ as a sound absorbing material, and the thickness is 50 mm.
Covered with glass wool.

(Comparative Example) A non-woven fabric was used and other conditions were the same as those of the example.

Reference Example 1 A non-woven fabric was constructed by using a non-woven fabric made of ordinary fibers that were not latently crimped polyester, and the other conditions were the same as in the example.

(Reference Example 2) Nonwoven fabric having a thickness of 2.5
A non-woven fabric using crimped polyester fibers of mm (less than 3 mm) was used, and the other conditions were the same as those of the example.

(Reference Example 3) Regarding the block-shaped support,
The shape was 250 mm in both width and length, the arrangement interval was 100 mm, and the other conditions were the same as those in the example (the area occupied by the support was 60% or more). A floor material is composed of the above combination, and JIS A1
418 Table 1 below shows the results of the measurement of the lightweight floor impact sound using a tapping machine according to the “Measurement method of floor impact sound level at the construction site”.

[0025]

[Table 1]

As is clear from these results, the floor impact sound level of the example is significantly lower than that of the comparative example. Further, according to comparison with the reference example, the floor impact sound is better when the latent crimp type fiber is used as the non-woven fabric, the thickness of the non-woven fabric layer is 3 mm or more, and the occupied area of the block-shaped support is 60% or less. It can be seen that this is preferable in reducing The examples were also good in walking sensation.

[0027]

As described above, according to the present invention,
Since the floor base material is provided through the plurality of block-shaped supports having the specific non-woven fabric layer and the rigid layer, the soundproofing performance can be remarkably enhanced while maintaining a good walking feeling. Moreover, since the block-shaped support can be easily arranged on the floor base, the construction is very simple and does not require skill. Also,
Since the floor impact sound can be reduced by such a specific support and floor base material, it is possible to use a material having inferior soundproofing property which could not be conventionally used as a floor surface finish material, and to achieve a floor finish according to needs. Also, since the floor base material normally covers the entire floor, any surface finishing material can be used not only in terms of material but also in shape from this point of view. Further, by using a highly rigid floor base material to reliably support the load on the floor, the soundproofing performance can be improved without further impairing the feeling of walking. Furthermore, in the double-floor structure of the present invention, the arrangement of the block-shaped support can be appropriately changed according to the situation of the site, and there is no hindrance to piping and wiring work.
It can be installed very easily.

[Brief description of drawings]

FIG. 1 is a cross-sectional configuration diagram of a block-shaped support, a floor base material, and a surface finish material on a floor base for a soundproof double floor structure of the present invention.

FIG. 2 is a cross-sectional configuration diagram of a block-shaped support, a floor base material, and a surface finish material on a floor base for the soundproof double floor structure of the present invention.

FIG. 3 is a cross-sectional configuration diagram of a block-shaped support, a floor base material, and a surface finish material on a floor base in the soundproof double floor structure of the present invention.

FIG. 4 is a cross-sectional configuration diagram of a block-shaped support, a floor base material, and a surface finish material on a floor base in the soundproof double floor structure of the present invention.

FIG. 5 is a cross-sectional configuration diagram of a block-shaped support, a floor base material, and a surface finish material on a floor base in the soundproof double floor structure of the present invention.

FIG. 6 is a view showing an example of the arrangement of supports under the floor base material in the soundproof double floor structure of the present invention.

FIG. 7 is a partially cutaway perspective view for explaining a usage state when the block-shaped support body of FIG. 6 is arranged in the sectional configuration of FIG. 3.

[Explanation of symbols]

 1 Block-shaped support 2 Non-woven fabric 3 Rigid body 4 Floor base material 5 Floor base 6 Sound absorbing material 7 Surface finishing material 8 Underfloor piping

Claims (6)

[Claims] 1. A block-shaped support for supporting a floor base material, which is arranged in plural on the floor base in order to provide a space in consideration of providing a pipe or the like on the floor base, and is the same or different kind of non-woven fabric. A soundproof block-like support comprising one or more high-rigidity layers of the same type or different types as the one or more layers. 2. The soundproof block-shaped support according to claim 1, wherein the non-woven fabric layer has a thickness of 3 mm or more. 3. The soundproof block-shaped support according to claim 1, wherein the nonwoven fabric is crimped fibers. 4. The soundproof block-like support according to claim 1, which has a height of 20 mm to 250 mm and a length and a width of 80 mm to 500 mm, respectively. 5. A double floor structure having a floor base material through a plurality of block-shaped supports arranged on the floor base in order to provide a space in consideration of providing piping etc. on the floor base. A soundproof double-floor structure characterized in that the floor base material comprises one or more layers made of the same or different materials, and the block-like support is the soundproof block-like support according to claim 1. 6. The soundproof double floor structure according to claim 5, wherein the occupied area of the block-shaped support is 60% or less of the floor base.