JPH05125820A - Support leg structure of sound insulation double floor - Google Patents

Abstract

PURPOSE:To devise a noise insulation double floor to easily deform under small shock or a small load at the time of a dynamic load application as shock and not to deform for more than a specified deformation amount at the time of a large static load. CONSTITUTION:Projections 7 easy to deform at the time of a small load are provided on the end surface of a rubber type support leg 3 of a noise insulation double floor 1a devised to place a floor base panel 5 through the rubber type support leg 3 on a floor face 2 of concrete finish or other. Additionally, a stopper 4 to regulate the deformation amount of the support leg itself is provided inside of the rubber type support leg 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound-insulating double-floor support leg structure in which a floor base panel is laid on a floor surface such as a concrete finish via support legs.

[0002]

2. Description of the Related Art In recent years, in apartment houses such as condominiums and apartments, the floor surface of the dwelling part is shifting from carpet finish to flooring finish, against the backdrop of factors such as the occurrence of mites and the intention of nature. In the case of this flooring finish, since the cushioning material such as carpet is eliminated, the impact sound when walking or when an object is dropped on the floor is transmitted to the room downstairs directly through the floor material / floor without being attenuated.

A double floor structure a shown in FIG. 3 is known as a sound insulation floor structure for solving this noise problem. As shown in the figure, in this floor structure a, a plurality of support legs d having a rubber portion c at a contact portion with the floor surface b are erected on a concrete-finished floor surface b, and under the floor on these support legs d. Ground panels e are laid one after another. Then, a waste board f such as plywood is laid on the floor base panel e, and a finishing board g such as a flooring board is stuck on the waste board f to complete the process.

Here, when the unevenness (unevenness) of the floor surface b of the concrete finish is large, the supporting leg d is provided with a screw portion for height adjustment, which corresponds to the unevenness of the floor surface b. Although there is a technique (Japanese Utility Model Laid-Open No. 2-130938, etc.), it has a drawback that its structure is complicated and that height adjustment work is complicated.

[0005]

Therefore, as shown in FIG. 4, on a floor surface h that has been uneven in some extent in recent years, the floor base panel i has excellent sound insulation and deformation characteristics on the floor surface h. Floor unit k with rubber support legs j directly attached
Is placed closely and the flooring material 1 (finishing board 1) is placed on it
The sound-insulating double floor system m, which is made up of solid-stated panels, has been put to practical use.

This method m has the advantages that the structure is simple, the number of laying steps is small, and the material and the number of steps of the wasteboard f can be omitted. Also, since the supporting legs j are also entirely rubber, they have good shock absorption and sound insulation. It has excellent properties.

However, when a heavy load is placed on the finishing plate 1 or the like, the supporting legs j may be largely deformed and the finishing plate 1 may be dented or tilted. As a countermeasure against this, it is conceivable to increase the rubber hardness of the rubber support leg j, but this is not preferable because it becomes uncomfortable with the unevenness of the floor surface h and the shock absorption and sound insulation properties are deteriorated.

As described above, the support leg j is required to be easily deformed by a small load (impact) at the time of dynamic load (at the time of impact) in order to enhance the sound insulation property, and also the dent or the like of the finishing plate 1 is required. In order to prevent this, the contradictory function of being difficult to deform under static load is required.

The object of the present invention, which was devised in consideration of the above circumstances, is that it is easily deformed by a small impact or load when it is subjected to a dynamic load such as impact, and does not deform more than a predetermined amount when it is subjected to a large static load. It is to provide a floor support leg structure.

[0010]

To achieve the above object, a first invention is a sound-insulating double floor in which a floor base panel is laid on a floor surface such as a concrete finish via rubber support legs. In the above, the end surface of the rubber support leg is provided with a projection that is easily deformed when a small load is applied, and a stopper that restricts the amount of deformation of the support leg itself is provided inside the rubber support leg.

A second aspect of the present invention is a sound-insulating double floor in which a floor base panel is laid on a floor surface such as a concrete finish via rubber support legs, wherein the floor base panel is provided with rubber support legs. Attach the wood screw through the floor side end face, and let the head of the wood screw bite into the floor base panel side for a predetermined distance from the floor side end face of the rubber support leg, and use the wood screw as a stopper. It is the one.

A third aspect of the present invention is a sound-insulating double floor in which a floor base panel is laid on a floor surface such as a concrete finish via rubber support legs, wherein the floor base panel has a tubular rubber material. The support leg is fixed by adhesion, and a rod-shaped stopper shorter than the length of the support leg is housed inside the support leg.

[0013]

According to the structure of the first aspect of the invention, when the floor base panel receives a dynamic load such as an impact, even if the load is small, the protrusions provided on the end faces of the rubber support legs are appropriately deformed. It absorbs the shock and insulates. In addition, when a heavy load is placed on the underfloor panel and a large static load is applied to it, a stopper provided inside the rubber support leg regulates the amount of deformation of the support leg itself. Unnatural dents and tilts are prevented.

According to the structure of the second invention, when the floor base panel is subjected to a small dynamic load, the rubber supporting leg is appropriately deformed in a portion between the floor side end face and the wood screw head. Absorbs shock and blocks sound. Also, when the floor base panel receives a large static load, due to the compression deformation of the rubber support legs,
The head of the wood screw inside the support leg comes into contact with the floor surface to bear the load. That is, the wood screw functions as a stopper, the rubber support leg is restricted from being further deformed, and an unnatural depression or inclination of the floor base panel is prevented.

According to the structure of the third aspect of the invention, when the load received by the floor base panel is small, the rubber support is in the range of "the length of the cylindrical rubber support leg"-"the length of the rod-shaped stopper". The legs are deformed and the sound is blocked. When the load exceeds this, the cylindrical rubber support legs are compressed and deformed, and the rod-shaped stopper comes into contact with the floor base panel and the floor surface to bear the load. This prevents dents and tilts.

[0016]

An embodiment of the present invention will be described below with reference to the accompanying drawings.

<< Embodiment 1 >> An embodiment of the first invention and the second invention is shown in FIG. FIG. 1 is a partial cross-sectional view of the sound insulation double floor 1a. As shown in the figure, a floor base panel 5 having rubber supporting legs 3 fixed to it with wood screws 4 is closely placed on a floor surface 2 of concrete finish, and a flooring material 6 (finishing plate) is stuck on it. The sound-insulating double floor is constructed.

Concentric ring-shaped projections 7 which are easily deformed by a small impact or load are respectively provided on both end surfaces of the rubber support leg 3, that is, the surface contacting the floor base panel 5 and the surface contacting the floor surface 2. It is provided. The protrusion 7 is not limited to a ring shape, but may be a stripe shape, a point shape, or any other contact area that is easily deformed under a small load.

A through hole 8 for inserting the wood screw 4 is formed in the central portion of the rubber support leg 3. This through hole 8
Is a large diameter portion 8a having the same inner diameter as the diameter of the head 4a of the wood screw 4.
And a conical portion 8b with which the dish portion 4b of the wood screw 4 is in close contact, and a small diameter portion 8c into which the screw portion 4c of the wood screw 4 is inserted. In the through hole 8, the large diameter portion 8a is on the floor surface 2 side,
The small diameter portion 8c is arranged on the floor base panel 5 side.

A wood screw 4 is inserted into the through hole 8 from the floor 2 side, and the tip of the wood screw 4 is screwed into a square of a floor base panel 5 (wood panel such as particle board). Here, the support leg 3 is attached / fixed to the floor base panel 5 in a state where the projection 7 on the upper end surface of the support leg 3 contacts the lower surface of the floor base panel 5 and is not significantly deformed. At this time, wood screw 4
Since the dish portion 4b of the wood screw 4 comes into close contact with the conical portion 8b of the through hole 8, the head portion 4a of the wood screw 4 bites into the floor base panel 5 side by a predetermined distance h from the lower end surface of the support leg 3. There is.

The operation of this embodiment having the above configuration will be described.

When the flooring material 6 receives a small dynamic load such as when a person walks, the projections 7 on both ends of the rubber support leg 3 are provided.
Properly deforms to absorb the load and impact. At the same time, the rubber support leg 3 appropriately deforms a portion (a portion at a distance h) between the end face on the floor surface 2 side and the wood screw head 4a, and absorbs a shock to insulate sound.

When a heavy object such as a chest of drawers is placed and the flooring material 6 is subjected to a large static load, the rubber support leg 3 is compressed and deformed, and the height H of the support leg 3 becomes low, and the height H-h. Then, the wood screw head 4a inside the support leg 3 becomes the floor surface 2
And the wood screw 4 bears the load substantially.

That is, the wood screw 4 functions as a stopper, the rubber support leg 3 is restricted from further deformation, and the flooring material 6 is prevented from being unnaturally depressed or inclined. That is, the wood screw 4 functions as a fixture for attaching the support leg 3 to the floor base panel 5, and also functions as a stopper under a large static load. In this way, the unnatural depression phenomenon can be prevented without increasing the rubber hardness of the support leg 3, so that the degree of freedom in design is increased.

Further, since the supporting legs 3 are entirely made of rubber and the volume of the elastic body is large, they are well adapted to the unevenness of the floor surface 2 and the height adjustment work is unnecessary. Furthermore, if the dimension h is appropriately adjusted according to the purpose of use of the room to be laid, the optimum effect can be exhibited for each room.

<< Embodiment 2 >> Next, an embodiment of the third invention is shown in FIG. In this embodiment, the rubber support leg 3 is adhered and fixed to the floor base panel 5 by a double-sided adhesive tape or the like instead of the wood screw 4. As shown in the figure, on the concrete-finished floor surface 2, a floor base panel 5 having rubber supporting legs 3 adhered and fixed to the bottom surface is closely placed, and a flooring material 6 (finishing plate) is directly stuck on the floor base material panel 5 to provide sound insulation. It constitutes the floor 1b.

More specifically, the tubular rubber support leg 3 is bonded and fixed to a predetermined position on the lower surface of the floor base panel 5 via an adhesive layer 9 such as a double-sided adhesive tape. In the cylinder of the rubber support leg 3 (through hole 8), the inner diameter of the through hole 8 is smaller than the inner diameter of the through hole 8 and the total length H of the support leg 3 when there is no load is a predetermined dimension h.
A rod-shaped stopper 10 that is only short is stored. The stopper 10 is made of hard plastic, metal or the like.

A concentric ring-shaped projection 7 is provided on the end surface of the rubber support leg 3 on the floor 2 side so that it can be easily deformed by a small impact or load as in the previous embodiment. Then, with the stopper 10 housed in the through hole 8 of the support leg 3,
A floor base panel 5 is laid on the floor surface 2, and a flooring material 6 is attached thereon.

The operation of this embodiment having the above configuration will be described.

When the flooring material 6 receives a small dynamic load such as when a person walks, the projections 7 on the end surface of the rubber support leg 3
Deforms properly to absorb the load and shock, and at the same time,
"Length of tubular rubber support leg 3"-"Bar-shaped stopper 1"
In the range "h of 0", the rubber support leg 3 is deformed and the sound is insulated.

When a heavy object such as a chest of drawers is placed and the flooring material 6 is subjected to a large static load, the rubber support leg 3 is compressed and deformed, and the height H of the support leg 3 decreases, but Hh
At this height, the stopper 10 inside the support leg 3 comes into contact with the floor base panel 5 to bear the load, and further compressive deformation of the rubber support leg 3 is restricted. Therefore,
Unnatural dents and inclinations of the flooring material 6 are prevented.

In order to prevent the stopper 10 from falling off when the floor base panel 5 to which the rubber support leg 3 is adhered and fixed is laid, the support leg is accommodated inside the support leg 3 in order to prevent the stopper 10 from falling off. The lower surface of 3 may be covered with an adhesive tape or the like.

[0033]

As described above, according to the sound insulation double floor support leg structure of the present invention, the following excellent effects can be exhibited.

When a dynamic load such as impact is applied, it can be easily deformed and sound-insulated even with a small impact or load, and at the time of a large static load, it is not deformed beyond a predetermined deformation amount, and unnatural depressions or inclinations of the floor base panel are prevented. Can be prevented.

[Brief description of drawings]

FIG. 1 is a side sectional view of a support leg structure of a sound insulation double floor showing an embodiment of the present invention.

FIG. 2 is a side sectional view of a support leg structure of a sound insulation double floor according to another embodiment.

FIG. 3 is a side sectional view of a supporting leg structure of a sound insulation double floor showing a conventional example.

FIG. 4 is a side sectional view of another conventional example of a sound-insulating double-floor support leg structure.

[Explanation of symbols]

 1a Sound insulation double floor 1b Sound insulation double floor 2 Floor surface 3 Rubber support leg 4 Wood screw 5 Floor base panel 7 Protrusion 10 Stopper

Claims (3)

[Claims] 1. In a sound-insulating double floor in which a floor base panel is laid on a floor surface such as a concrete finish via rubber support legs, the end faces of the rubber support legs are easily deformed when a small load is applied. A sound-insulating double-floor support leg structure in which a protrusion is provided and a stopper for restricting the amount of deformation of the support leg itself is provided inside the rubber support leg. 2. A sound-insulating double floor in which a floor base panel is laid on a floor surface such as a concrete finish via rubber support legs, wherein the floor support panel is provided with the rubber support legs. It is characterized in that a wood screw is attached through the end face, and the head of the wood screw is bitten into the floor base panel side by a predetermined distance from the floor side end face of the rubber support leg, and the wood screw is used as a stopper. Sound insulation double floor support leg structure. 3. A sound-insulating double floor in which a floor base panel is laid on a floor surface such as a concrete finish via rubber support legs, and a tubular rubber support leg is bonded to the floor base panel. A sound-insulating double-floor support leg structure that is fixed and accommodates a rod-shaped stopper that is shorter than the length of the support leg.