JPH06322954A - Structure of header - Google Patents

Abstract

PURPOSE:To prevent floor vibration and prevent floor impact sounds from being propagated to the lower story by supporting a floor joist so that the height thereof can be adjusted and providing a vibration-isolation material between the floor joist and a floor material and between the floor joist and a wall. CONSTITUTION:A floor material 2 is constructed at a predetermined height from a floor base 1 of a concrete slab and the like, and the floor material 2 on the side of a wall is supported by a floor joist 4. The floor joist 4 is supported on the floor base 1 by means of a height-adjustable supporting leg 5 and a rubber 6 is provided at the lower end of the leg 5 and the rubber 6 is brought into contact with the base 1. In this case, in the structure of the floor joist, vibration-isolation materials 7, 8 composed of rubber, foam plastics etc., are provided at least between the floor joist 4 and the floor material 2 or between the material 4 and a wall 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joist structure for supporting a floor material on a wall of a so-called double floor in which a floor material is constructed at a predetermined height from a floor base such as a concrete slab.

[0002]

2. Description of the Related Art Conventionally, in this type of thick joist structure, as shown in FIG. 15, a floor material 2 is constructed at a predetermined height from a floor base 1 such as a concrete slab, and the floor material 2 is attached to the wall 3 side. The support was made by the bundle 100 and the joist 101. Bunch 10
No. 0 was in close contact with the floor base 1 and the wall 3, and the joist 101 was placed on this bundle 100 and fixed to the wall 3 side with the nail 102. Further, a skirting board 103 was provided above the wall 3 of the floor material 2.

[0003]

Around the wall 3 that divides the floor base 1, the bundle 100 and joists 101 are closely fixed to the wall in order to prevent the floor from sinking when loading or walking furniture. However, the impact on the floor is 100 bundles and 1 joist.
It was directly transmitted to the wall 3 and the floor base 1 through 01, and the sound insulation performance downstairs was deteriorated.

Therefore, an object of the present invention is to provide a joist structure for improving the sound insulation performance to the downstairs.

[0005]

In order to achieve the above object, the present invention provides at least a joist structure for supporting a floor material constructed at a predetermined height from a floor base such as a concrete slab by a wall. A vibration-proof material is provided between the timber and the floor material or between the joist and the wall.

[0006]

[Function] If a vibration isolator is provided between the joist and the wall, sound transmission to the wall is prevented, and if a vibration isolator is provided between the joist and the floor, the sound to the floor base is reduced. The propagation of is also eased.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings.

In the first embodiment shown in FIG. 1, a floor material 2 is constructed at a predetermined height from a floor base 1 such as a concrete slab, and the wall 3 side of this floor material 2 is supported by a joist 4. There is.
The joists 4 are supported on the floor base 1 by supporting legs 5 whose height can be adjusted. A rubber 6 is provided at the lower end of the support leg 5, and the rubber 6 grounds to the floor base 1. Further, screws engraved in opposite directions are formed at both ends of the support leg 5, the screw at the lower end is screwed into a female screw fitting provided inside the rubber 6, and the screw at the upper end is provided on the joist 4. It is screwed into the female screw fitting. An antivibration material 7 is provided on the upper surface of the joist material 4 supported by the support legs 5, and the end portion side of the floor material 2 is placed on the antivibration material 7. Furthermore, a joist 4 is installed apart from the wall 3 for a predetermined period, and a vibration isolator 8 is also provided between the joist 4 and the wall 3. A space 9 is formed between the end surface of the floor material 2 and the wall 3. A baseboard 10 is provided above the wall of the flooring 2, and a first air communication passage 11 is formed between the baseboard 10 and the flooring 2. This first
The air above the floor and the air in the gap 9 communicate with each other via the air communication passage 11. Further, the air in the underfloor space 12 and the air in the gap 9 are provided with the vibration isolator 7 at a plurality of intervals along the longitudinal direction of the joist 4 so that the second air communication passage 1 is provided in each interval.
3 are formed (see FIG. 2).

FIG. 2 shows the structure of the wall before the floor material 2 and the skirting board 10 in FIG. 1 are installed. A plurality of vibration damping materials 7 are provided in the longitudinal direction of the upper surface of the joist 4 and each vibration damping material is provided. A space is provided between the members 7, and a space within this space serves as a second air communication passage 13. The surface of the vibration isolator 7 that contacts the floor material 2 is formed with a plurality of convex portions 71, and the floor material 2 is supported by the upper surfaces of these convex portions 71.

In the second embodiment shown in FIG. 3, a vibration isolator 7 is provided over the entire length of the joist 4 and holes are formed in the vibration isolator 8 in the vertical direction. The communication passage 13 is used.

In the third embodiment shown in FIG. 4, the vibration isolator 8 provided between the wall 3 and the joist 4 is divided into a plurality of parts, and the second air communication passage 13 is formed at the divided part. Is.

The vibration-proof material 7 shown in FIGS. 5 to 9 shows an example in which the shape of the projection 71 is changed and a round hole 72, a square hole 73, and a long hole 74 are vertically penetrated. Protrusion 7
The elasticity of the vibration damping material 7 is changed by forming the round holes 72, the square holes 73, and the long holes 74.

In the fourth embodiment shown in FIG. 10, the joist 4 is brought into close contact with the wall 3 and the vibration isolator 7 is provided on the joist 4. In this embodiment, joists 4 and walls 3 are used.
However, due to the presence of the vibration isolator 7, the floor impact sound is transmitted directly to the joist 4 and not to the wall 3.

The fifth embodiment shown in FIG. 11 shows an example in which only the vibration isolator 8 is provided. The rubber 6 provided on the support leg 5 relaxes the transmission of the floor impact sound to the floor base 1.

The sixth embodiment shown in FIG. 12 shows an example in which a bundle 100 similar to the conventional one is used without using the support legs 5, and vibration-damping materials 7 and 8 are provided on the upper surface and the side surface of the joist 4, respectively. It is provided.

A seventh embodiment shown in FIG. 13 shows a case where the vibration isolator 7 in the sixth embodiment is not provided.

The eighth embodiment shown in FIG. 14 shows the case where the vibration isolator 8 in the sixth embodiment is not provided.

When the bundle 100 and the joist 4 are both made of wood, it may be difficult to adjust the height to a certain level due to a slippage of the tree or loosening of the fixing, and floor squeal may occur. . In order to prevent the generation of floor squeal, it is preferable to provide the support leg 5 whose height can be adjusted. In addition, the vibration isolator 7,
As the material of 8, rubber, plastic foam or the like is preferably used. The anti-vibration materials 7 and 8 may be made of different materials. Further, the surface of the vibration isolator 8 on the side of the wall 3 is subjected to an adhesive treatment and temporarily fixed to the wall 3 to facilitate the construction.

The floor material 2 is supported by supporting legs whose height can be adjusted in the same manner as the supporting legs 5 shown in the figure, and the supporting legs are provided on a panel for a floor base of a predetermined size. It is preferable to use a material having a surplus material applied thereon and a finishing material attached on the surplus material.

[0020]

As described above, according to the present invention, since the vibration damping material is provided at least between the joist and the floor material or between the joist and the wall, the floor impact sound is transmitted to the downstairs. Propagation can be prevented. Further, in the case where the joists are supported by the height-adjustable support legs, the height can be easily adjusted, and the floor ringing can be prevented by adjusting the height to a predetermined height.

[Brief description of drawings]

FIG. 1 is a sectional view showing a first embodiment.

FIG. 2 is a perspective view of a joist material portion in the first embodiment.

FIG. 3 is a perspective view showing a second embodiment.

FIG. 4 is a perspective view showing a third embodiment.

FIG. 5 is a front view of a vibration isolator with protrusions provided on the joist.

FIG. 6 is a front view of a vibration isolator similar to FIG. 5, but having different protrusion shapes.

FIG. 7 is a plan view of the vibration damping material provided on the joist.

FIG. 8 is a plan view of a vibration damping material showing another example similar to FIG.

9 is a plan view of a vibration damping material showing another example similar to FIG. 7. FIG.

FIG. 10 is a sectional view showing a fourth embodiment.

FIG. 11 is a sectional view showing a fifth embodiment.

FIG. 12 is a sectional view showing a sixth embodiment.

FIG. 13 is a sectional view showing a seventh embodiment.

FIG. 14 is a sectional view showing an eighth embodiment.

FIG. 15 is a sectional view showing a conventional example.

[Explanation of symbols]

 1 Floor base 2 Floor material 3 Wall 4 Joist material 7,8 Anti-vibration material

Claims (2)

[Claims] 1. A joist structure for supporting a floor material, which is constructed at a predetermined height from a floor base such as a concrete slab, by a wall, at least between the joist and the floor material or between the joist and the wall. A joist structure characterized by the provision of anti-vibration material. 2. The extra joist structure according to claim 1, wherein the joist is supported by supporting legs whose height can be adjusted.