JP2000064580A - Soundproof flooring - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a soundproof-floor foundation material having rigidity without mounting an under-layment material and capable of preventing the sinking of a floor face even when large load is applied. SOLUTION: A cushioning material 5 in constant thickness is stuck on the rear of a face material 1, in which female-male tongue sections 2, 3 are formed to four end faces, in the soundproof-floor foundation material. A stopper 4 in thickness thinner than the thickness of the cushioning material 5 by approximately 2-3 mm is fixed onto the rear of the male tongue section 2 or the female tongue section 3, the underside of the stopper 4 is abutted against a floor-slab surface when load is applied, and the sinking of a floor face is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor base material which is capable of suppressing the sinking of a floor material and which is excellent in soundproofing and workability.

[0002]

2. Description of the Related Art Conventionally, a soundproof floor base structure as shown in FIG. 11 has been used as a floor soundproofing measure. In this floor base structure, a sheet-shaped cushioning material 22 made of foamed resin, non-woven fabric, rubber or the like is attached to the back surface of a face material 21 having rigidity such as plywood to form a soundproof panel 20. A large number of sheets are laid on the floor slab surface 30 with the cushioning material 22 facing downward, and then a discarding material 23 made of plywood, particle board or the like is laid on the soundproof panel 20 in a misaligned manner, and an adhesive or nail is used. It is formed by fixing the soundproof panel 20 by hitting or the like. Then, a floor finishing material 24 such as wood flooring is attached onto the waste upholstery material 23 of the floor base material.

[0003]

However, according to the above-mentioned floor base structure, the face material is used to improve the soundproofing property.
Since the cushioning material 22 attached to the back surface of 21 has flexibility and is rich in compressive deformation, the floor material sinks when a load is applied, and when the rigidity of the waste upholstery material 23 is weak, When walking, there is a problem that the joint between the abandoned upholstery materials 23, 23 rubs and makes a noise. Furthermore, when a heavy object such as furniture is placed, the floor base material largely sinks and unevenness is generated on the floor surface, which damages the floor material and reduces soundproofing. Therefore, in the conventional floor base structure, the sacrificial upholstery material 23 is laminated in multiple layers to increase the flexural rigidity.However, such a structure not only requires a great deal of work for construction but also requires a high material cost. In addition, there is a problem that the finished thickness of the floor increases and the floor surface becomes higher than necessary.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a soundproof structure which is easy to construct and which can suppress unnecessary sinking due to a load without lowering the soundproof property. To provide a floor base material.

[0005]

In order to achieve the above-mentioned object, the invention according to claim 1 is a sound-insulating floor base material comprising a backing material having rigidity and a cushioning material having a certain thickness attached to the back surface thereof. Male and female parts are provided on both end surfaces of the face member which are parallel to each other, and a stopper having a rigidity smaller than the thickness of the cushioning member is fixed to a part of the back surface of the face member.

Further, the invention according to claim 2 is the sound-insulating flooring base material according to claim 1, wherein the stopper is provided on both end surfaces of the face material having rigidity, and a surface is provided on the back surface of the male part or the female part. It is characterized in that it is fixed along the length direction of the material. Further, the invention according to claim 3 is characterized in that the stopper is fixed to the back surface of the edge portion of the two sides of the face material which are continuous at right angles to each other.

[0007]

[Function] When the above-mentioned soundproof floor base material is applied to the floor slab surface, the cushioning material attached to the back surface of the rigid surface material exerts the same soundproof effect as the conventional floor base material and When a load is applied to the surface material, a stopper fixed to a part of the back surface of the surface material contacts the floor slab surface to prevent the surface material from largely sinking. Therefore, it is possible to improve the workability and reduce the material cost by eliminating the need to provide a plurality of layers of waste tension on the panel unlike the conventional floor base material.

Further, since the adjacent face members constructed on the surface of the floor slab have the male and female parts formed on the opposite end faces thereof fitted to each other, the adjacent face members which are not loaded are also male and female. The stopper behaves integrally with the face material that is being loaded through the section so that the stopper comes into contact with the floor slab surface.
Therefore, the entire laid soundproof floor base material is rich in rigidity without stacking the waste upholstery material, and exhibits excellent strength and stable load bearing ability. Also, since the stopper is formed to be slightly thinner than the thickness of the cushioning material, the bottom surface of the stopper is normally kept in a state of being lifted from the floor slab surface. It does not transmit to the slab surface and does not impair soundproofing.

It is desirable that the stoppers on the back surface of the face material be fixed to the back surface of either the male part or the female part formed on both end surfaces of the face material. With this configuration, the soundproof floor base materials connected by the mating of the male and female parts are mutually supported by the stoppers fixed to the back surface of either one of the mating male and female parts. The reduction in the area where the cushioning material is attached on the back surface of the face material is suppressed to a minimum, and the soundproof function is hardly impaired.

Further, the stopper may be fixed to the back surfaces of the two edge portions of the face material which are connected at right angles to each other. With this construction, a more stable and strong supporting force is exerted. It will be. The shape of the stopper may be a square rod shape substantially equal to the length of the edge of the face material, and
It may be a small block-shaped stopper fixed to the edge portion of the face material at regular intervals in the length direction.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION A concrete embodiment of the present invention will be described with reference to the drawings. In FIGS. 1 to 3, a soundproof floor base material A is a square-shaped rigid surface material 1 having a constant thickness. The male and female portions 2 and 3 are formed on the end faces parallel to each other, and a thin rod-like member is formed on the back surface of the female and solid portion 3 formed on the end face on the one long side edge side of the face material 1. The stopper 4 is fixed over substantially the entire length, and a cushioning material 5 having a constant thickness slightly larger than the stopper 4 is attached to the entire back surface other than the stopper 4.

The face material 1 is a plywood having rigidity, a particle board, a veneered particle board having a veneered glass laminated with a veneer having a thickness of about 1 mm on both sides, a volcanic glass multi-layer board (trade name: Dailite, Daiken). Made by Kogyo Co., Ltd.) or MDF, and has a length and width of 606 mm to 90 mm.
9mm x 303mm ~ 909mm rectangular shape with a thickness of 9
It is formed to ~ 25mm.

The stopper 4 fixed to the back surface of the female portion 3 on the long edge side of the face member 1 is made of a rigid wood material or a hard resin material, and has a thickness of 2 times that of the cushioning material 5. ~ 3
It is formed in a rectangular rod shape with a thickness of 20 mm and a width of 20 to 100 mm, and the length thereof is equal to the long side of the face material 1 or slightly shorter. The stopper 4 is fixed to the back surface of the female part 3 formed on the end surface of the face material 1 on the long side edge side, but as shown in FIG. It may be fixed to the back surface of the male / solid portion 2 formed on the end surface on the edge side, in short, it may be fixed to the back surface of either one of the male / male portions 2 and 3.

The shape of the stopper 4 is not limited to the rectangular bar shape, but may be a round bar shape. It is preferable to attach a rubber layer 6 such as a vibration-proof rubber or a vibration-damping rubber to the lower surface of the stopper 4, and even when such a rubber layer 6 is provided, the rubber layer is naturally included. Stopper 4
Is formed to be slightly thinner than the thickness of the cushioning material 5. The stopper 4 may be fixed to the face material 1 by an adhesive or by nailing.

The cushioning material 5 attached to the back surface of the face material 1 is a mat made of synthetic resin foam such as foamed polyethylene or urethane foam, or a vibration proof such as a non-woven mat, a glass wool mat, a rock wool mat, or a rubber sheet. Although it is formed of a single layer of a mat or a vibration-proof sheet or a plurality of layers of two or more kinds, it may be a composite of the vibration-proof mat or the vibration-proof sheet and an insulation board.
This cushioning material 5 is provided on the back surface of the face material 1 by the stopper 4
It is affixed to the entire back surface, except for the affixed part of
The cushioning material 5 is formed to have a lateral width shorter than the face material 1 by 20 to 100 mm, which corresponds to the width of the stopper 4. Further, the thickness of the cushioning material 5 is 5 to 40 mm, and the thickness of the cushioning material 5 is smaller than that of the stopper 4 as described above.
Only 3mm thin. The lower surface of the stopper 4 may be covered with a thin layer of the cushioning material 5, that is, the stopper 4 may be embedded in the cushioning material 5.

The soundproof floor base material A constructed as described above is
As shown in FIG. 4, the soundproof floor base materials A, which are adjacent to the floor slab surface 7, are laid by a normal construction method while fitting the male and female parts 2, 3 of the A to form the floor base surface. A male and female part 9 formed on the floor base surface, that is, on the surface of the face material 1 of the soundproof floor base material A, by laying a floor finish material (wooden flooring) 8 on the opposite end surfaces of the adjacent floor finish materials 8, 8. ,Ten
And the lower surface is attached to the surface of the face material 1 for floor finishing. At this time, the floor finishing material 8 is laid with respect to the soundproof floor base material A in a misaligned manner with the fitting portions of the male and female parts shifted.

The floor thus constructed is a soundproof floor base material A
The cushioning material 5 attached to the back surface (lower surface) of the face material 1 prevents the impact sound or the like generated on the floor surface from being transmitted to the floor slab surface 7. Since the fixed stopper 4 keeps its lower surface lifted from the floor slab surface 7, no sound is transmitted through the stopper 4 and a reliable soundproof function is exhibited.

Next, when a large load is applied to the floor finishing material 8 due to the installation of a piano, a chest of drawers, etc., the soundproof floor base material A tries to sink while compressing and deforming the cushioning material 5 by the load. A slight subsidence of ~ 3 mm causes the lower surface of the stopper 4 to abut the floor slab surface 7 to prevent further subsidence. Furthermore, since the soundproof floor base materials A laid side by side are connected to each other by the fitting of the male and female parts 2, 3 thereof, the load applied to one soundproof floor base material A is The other soundproof floor base material A can also be supported via the parts 2 and 3, and the rigidity required as the soundproof floor base material A does not have to be provided on the soundproof floor base material as in the conventional case. Will hold.

Further, the adjacent soundproof floor base materials A, A are
Since the opposite end faces are integrally connected by fitting the male and female parts 2 and 3 as described above, the stopper 4 is provided only on the back surface of either one of the male and female parts 2 and 3. The soundproof floor base materials A and A can retain the supporting function by the stoppers 4 only, and therefore, the reduction of the attachment area by the stoppers 4 in the cushioning material 5 attached to the back surface of the face material 1 is minimized. It is possible to suppress the soundproofing, and the soundproofing is hardly deteriorated. Further, by sticking the rubber layer 6 on the lower surface of the stopper 4, even when the stopper 4 comes into contact with the slab surface due to the sinking of the floor, the transmission of sound through the stopper 4 can be suppressed.

FIG. 6 shows another embodiment of the soundproof floor base material A of the present invention. Two side edges of a rectangular face material 1 having a cushioning material 5 adhered to the back surface thereof are connected at right angles. The back of the section,
That is, the male and female portions 2 formed on the end faces of the long side and the lower side,
Square rod-shaped stoppers 4 and 4A are fixed to the back surface of 2a or the back surfaces of female parts 3 and 3a. The other configurations are the same as those of the soundproof floor base material A shown in FIGS. 1 to 3 above, and therefore, the same parts are designated by the same reference numerals and the description thereof will be omitted.

In any of the above soundproof floor base materials A, the male part 2 or the female part 3 formed on the end face of the face material 1 is used.
Although the rod-shaped stoppers 4 and 4A are fixed to the back surface of the whole length of the rod-shaped stoppers 4 and 4, as shown in FIG. 7, the cushion material 5 is attached to the back surface of the rectangular face material 1 in the male part 2 or the female part. On the back surface of No. 3, small block-shaped stoppers 4B, 4B, ... 4B whose thickness (height) is 2 to 3 mm thinner than the cushioning material 5 at fixed intervals along the edge of the surface material 1 are fixed in a scattered manner. You may keep it. In this case, the stopper 4B may be square or round.

Such a small block stopper
According to the soundproof floor base material A in which 4B are fixed to the back surface of the face material 1 in a scattered manner, the area of attachment of the face material 1 by all the stoppers 4B is smaller than the area of attachment of the rod-shaped stoppers 4 described above. And the cushioning material 5 also in the space between the adjacent stoppers 4B and 4B.
A predetermined soundproofing effect can be exhibited by sticking. Further, the stoppers 4B may be fixed only to the four corners of the back surface of the face material 1. With this structure, the soundproof floor base material A can exert a stable supporting force when a large load is applied. it can.

FIG. 8 shows a modified example of the male and female parts 2, 3 formed on the end surface of the face material 1 of the soundproof floor base material A. The male and female parts by the actual machining as shown in FIGS. 1 to 3. The male and female parts 2A and 3A having a combined structure, not the second and third parts, and the soundproof floor base material A of the present invention, the male and female parts 2A having this structure,
3A may be adopted. In this case, attach the stopper 4 to the face material 1
It is desirable to fix it to the back surface of the male real part 2A instead of the back surface of the female real part 3A when it is fixed to the back surface along the long side edge.

The reason is that if the stopper 4 is fixedly attached to the back surface of the male and female part 2A, the male and female parts will be mutually attached as shown in FIG.
When a load is applied on the female real portion 3A of the soundproof floor base material A, A connected by fitting of 2A, 3A, the male real portion 2A is pressed by the female real portion 3A to reverse the male real portion 2A. The load can be supported by the stopper 4 that is fixed to the, but if the stopper 4 is fixed to the back surface of the female part 3A,
As shown in FIG. 10, when a load is applied on the male solid portion 2A, the male solid portion 2A separates downward from the female solid portion 3A, and the cushioning material 5 is largely compressed to reduce the sound insulation of the male solid portion 2A. This is because only the floor base material A is largely settled downward. Next, specific examples of the present invention will be shown.

[0025]

Example 1 A back surface of a female part formed on the long-side end surface and the short-side end surface of a face material made of a particle board having a rigidity of 909 mm in length, 606 mm in width, and 20 mm in thickness. A 860 mm long, 40 mm wide, and 4 mm thick stopper consisting of a vibration damping mat and a 600 mm long, 40 mm wide, and 4 mm thick stopper are attached to each other with a vinyl acetate emulsion adhesive. A cushioning material made of urethane foam having a thickness of 6 mm was adhered to the back surface to obtain a soundproof floor base material. A plurality of the soundproof floor base materials were sequentially laid by fitting male and female parts facing each other on the floor slab surface to construct the floor base surface. A wooden floor was stretched on the floor surface to obtain a floor surface. The floor thus obtained was able to reliably suppress sinking even when a large load was applied to the floor. Further, since the waste upholstery material is unnecessary, the construction labor is 1/2 to 1/3 of the conventional construction, and the construction time can be remarkably shortened.

Example 2 A volcanic glass multi-layer plate (trade name: Dailite, manufactured by Daiken Industry Co., Ltd.) having a length of 909 mm, a width of 606 mm and a thickness of 18 mm was used as a surface material having rigidity. This volcanic glass multi-layer board contains 65% by weight of rock wool as a mineral fiber, 20% by weight of aluminum hydroxide as an inorganic powder, 5% by weight of pulp, and 10% by weight of powdered phenol and starch as a binder in clear water. Charge and stir about 2
% Slurry is prepared, and the slurry is formed by a Fourdrinier paper making machine to obtain a wet mat, while 65% by weight of perlite as an inorganic foam and aluminum hydroxide as an inorganic powder.
A mixture obtained by mixing 20% by weight, 5% by weight of pulp, and 10% by weight of powdered phenol as a binder under a spray of fresh water was sprayed and deposited on the wet mat to form a mat layer, The wet mat is further laminated on this mat layer to form a laminated mat having a three-layer structure, and the laminated mat is made of an inorganic plate having a specific gravity of 0.7 and a thickness of 18 mm, which is obtained by hot-pressing and drying the laminated mat. Is.

A length of 860 mm consisting of a damping mat is formed on the back surface of the female part formed on the long-side end surface and the short-side end surface of this face material on the lower surface of this volcanic glass double-layer board as in the case of the above-mentioned Example 1. ,width
A 40 mm thick, 4 mm thick stopper and a 600 mm long, 40 mm wide, 4 mm thick stopper are adhered to each other with a vinyl acetate emulsion adhesive, and the back surface of the face material other than these stoppers is made of 6 mm thick urethane foam. A cushioning material was adhered to obtain a soundproof floor base material. A plurality of the soundproof floor base materials were sequentially laid by fitting male and female parts facing each other on the floor slab surface to construct the floor base surface. A wooden floor was stretched on the floor surface to obtain a floor surface. The floor surface thus obtained can surely suppress the sinking even when a large load is applied to the floor surface, and since no waste upholstery material is required, the construction labor is 1/2 to 1/3 that of the conventional one. Therefore, the construction time could be shortened significantly. Furthermore, since the floor part is made of an inorganic material, it will prevent the floor from burning out during a fire,
It has excellent fire resistance.

[0028]

As described above, according to the soundproof floor base material of the present invention, in the soundproof floor base material, a cushioning material having a certain thickness is attached to the back surface of the rigid surface material, and Since male and female parts are provided on both end surfaces parallel to each other, and a stopper having a rigidity smaller than the thickness of the cushioning material is fixed to a part of the back surface of the face material, it is attached to the back surface of the face material. The cushioning material that is worn can provide the same soundproofing effect as conventional floor base materials, but when a large load is applied to this floor base material, it adheres to a part of the back surface of the face material. It is possible to reliably and firmly prevent the surface material from largely sinking due to the stopper being in contact with the floor slab surface. Therefore, it is possible to prevent noise and deterioration of sound insulation due to rubbing of the joint between the abandoned materials, and to eliminate the need to provide a plurality of layers of abandoned panels on the panel unlike conventional flooring materials, thus improving workability. It is possible to improve and reduce the material cost.

Furthermore, since the adjacent face members constructed on the floor slab surface have the male and female parts formed on the opposite end faces thereof fitted to each other, the adjacent face members which are not loaded are also male and female. Through the section, it behaves integrally with the face material that is being loaded, and its stopper can come into contact with the floor slab surface.Therefore, the installed soundproof floor base material is highly rigid and has excellent strength. It is possible to exert a stable load supporting force. Also, since the stopper is formed to be slightly thinner than the thickness of the cushioning material, the bottom surface of the stopper is normally kept in a state of being lifted from the floor slab surface. It does not transmit to the slab surface, and has a remarkable effect such as not impairing soundproofing.

[Brief description of drawings]

FIG. 1 is a perspective view of a soundproof floor base material formed by fixing a rod-shaped stopper,

FIG. 2 is a vertical sectional front view,

FIG. 3 is a back view of the

FIG. 4 is a simplified vertical sectional front view showing a state of being installed on a floor slab surface,

FIG. 5 is a back view showing another embodiment of the soundproof floor base material,

FIG. 6 is a plan view of a soundproof floor base material in which a rod-shaped stopper is fixed at a right angle to the back surface of the surface material,

FIG. 7 is a plan view of a soundproof floor base material having a small block-shaped stopper fixed to the back surface,

FIG. 8 is a simplified vertical cross-sectional front view of a soundproof flooring base material having male and female parts having a compounding structure;

FIG. 9 is a simplified vertical sectional view showing the construction state,

FIG. 10 is a simplified vertical sectional front view of a soundproof floor base material having a stopper fixed to the back surface of the female part.

FIG. 11 is a simplified vertical sectional front view showing a construction state of a conventional soundproof floor base material.

[Explanation of symbols]

1 face material 2 male part 3 Female part 4 stopper 5 cushioning material A soundproof floor base material

Claims (3)

[Claims] 1. A soundproofing floor base material comprising a rigid backing material and a cushioning material having a constant thickness attached to the back surface thereof, wherein male and female parts are provided on both end surfaces of the facing material which are parallel to each other. A soundproof floor base material, characterized in that a stopper having rigidity smaller than the thickness of the cushioning material is fixed to a part of the back surface of the face material. 2. A stopper is fixed along the length direction of the face material to the back surface of the male real part or the female real part provided on both end surfaces of the face material having rigidity. Soundproof floor base material described in. 3. The soundproof floor base material according to claim 1, wherein a stopper is fixed to the back surfaces of the two edge portions of the rigid surface material that are continuous at right angles to each other.