JPH0960275A - Sound insulating structure for flooring floor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively suppress the generation of a shock absorbing sound by sticking a backer beam on a floor joist fitted with shock absorbing rubber members at intervals with nails, and sticking a flooring board on the backer beam. SOLUTION: Shock absorbing rubber members 5 integrally formed with leg sections having fins are pressed into a groove cut at the portion of a floor joist 1, and the rubber members 5 are fitted to the face of the floor joist 1. A backer beam 2 made of a lauan plywood is fixed on the floor joist 1 while nails are driven at the empty portions between the rubber members 5, and a flooring board 4 is stuck on the backer beam 2. The impacts applied to the flooring board 4 and the creaking of the whole floor are absorbed by the rubber members 5, and the generation of sounds can be effectively suppressed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soundproof structure for flooring floors.

[0002]

2. Description of the Related Art Conventionally, in order to achieve soundproofing of a flooring floor, the flooring itself has a special structure for absorbing shock so as to prevent the flooring itself from generating sound due to a shock applied to the flooring floor.

In addition, it is considered that a strut is struck on a joist with a nail and a flooring member is attached to the strut with a cushioning member made of rubber or the like between the joist and the strut. However, in that case, the mortar must be nailed to the joist through the cushioning member.

[0004]

The problem to be solved is that if the flooring itself is made to have a special structure for absorbing shocks, the manufacturing of the flooring itself becomes complicated and expensive. This means that the freedom of choice is limited.

Since the members constituting the floor have contractibility and the dimensional deviation with time cannot be denied, each time a person steps on the floor, the floor squeaks and produces a sound.
This means that it is not possible to sufficiently prevent the generation of noise due to the squeaking of the floor itself, only by making the flooring itself a special structure for absorbing shock.

Further, if a cushioning member made of rubber or the like is provided between the joist and the burrs and the struts are hammered through the cushioning member to the joists with a nail, the cushioning member is used. There is a problem in that the elasticity of the member is lost and the impact applied to the flooring through the nails that has been hammered is transmitted to the joists.

[0007]

SUMMARY OF THE INVENTION The present invention is a floor structure in which a lever is nailed on a joist with a nail and a flooring is attached to the beam, and the flooring itself has any special structure. In order to absorb the impact applied to the flooring with a simple means and effectively prevent the generation of sound without causing such a problem, there is no hindrance to the nailing of the burrs to the joists, Using joists with rubber members for cushioning installed at intervals along the both ends of the surface where the terrain is nailed, the nail was hammered into the gap between the rubber members. It has a feature.

[0008]

1 and 2 show an embodiment in which the present invention is applied to an upper floor structure.

In the soundproof structure of the flooring floor according to the present invention, the stile 2 made of lauan plywood is placed on the joist 1.
The nails 3 with nails 3, and when the flooring 4 is pasted onto the stile 2, the cushioning rubber members 5, 6 are spaced along both ends of the surface on which the stile 2 is struck with the nails 3. The attached joist 1 is used to drive the nail 3 into the space 7 between the rubber members 5 and 6.

As shown in FIG. 3, leg portions 51 with fins 52 are integrally formed on the cushioning rubber member 5, and grooves 8 are cut in the corresponding joist 1 portions. The leg portion 51 is firmly pressed into the groove 8 so that the fin 52 is deformed, and the rubber member 5 is attached to the surface of the joist 1.
Is attached.

Similarly, the cushion rubber member 6 is integrally formed with finned leg portions 61, and a groove 9 is cut in the corresponding joist 1 portion. The leg 61 is press-fitted firmly into the inside of the so that the fins are deformed, and the rubber member 6 is attached to the surface of the joist 1.

Therefore, according to the present invention, the impact applied to the flooring 4 and the squeak of the entire floor can be achieved by a simple means using only the joists 1 in which the cushioning rubber members 5 and 6 are attached at intervals. Are absorbed by the rubber members 5 and 6, and the generation of sound is effectively suppressed. Further, when hammering the burrs 2 onto the joists 1 with the nails 3, the nails 3 can be hammered into the gaps 7 between the rubber members 5 and 6 without passing them through, which impedes the hammering of the burrs 2. You can do it without any trouble.

As the joists 1, two kinds having different sizes are used as shown in FIGS. 4 and 5.

Further, in the structure shown in FIG. 1, there are two parts 10 of connecting trees connected between the joists 1 and the field edge 11 to which the downstairs ceiling plate 12 (or its base material) is attached.
A member 13 that connects the two by splitting them into the two, and connecting them by the shearing force of the rubber is provided between the two lumber portions 101 and 102.

The member 13 is made up of fittings 131, 132.
A rubber material 133 is adhered between the sides of the rubber material 133, and is attached by screwing between the side surface of the fishing tree portion 101 and the side surface of the fishing tree portion 102 by the fittings 131 and 132. The fishing tree portion 101 and the fishing tree portion 102 are connected by force.

However, in order to block the sound and vibration transmitted from the floor above the floor to the ceiling below the ceiling through the ceiling support structure, it is necessary to make the natural frequency of the spring system in the ceiling support structure as low as possible. Since the spring constant in the shear direction of the rubber material 133 in the member 13 is as small as about a fraction of that in the compression direction, the member 13 effectively cuts off the sound and vibration transmitted from the floor above the floor to the ceiling below. Will be.

[0017]

As described above, in the soundproof structure of the flooring floor according to the present invention, when the slats are struck by the nails on the joists and the flooring is stuck on the slats, the cushioning rubber members are spaced apart. By a simple means using only joists that are installed with a gap, the rubber member can absorb the impact applied to the flooring and the squeak of the entire floor, and it is possible to effectively suppress the generation of sound. .

Further, according to the present invention, when hammering a mortar to a joist with a nail, the nail can be driven into a gap between the rubber members without passing through the rubber member. Since the rubber member can effectively absorb the impact applied to the flooring without losing elasticity, there is an advantage that the striking can be performed without any trouble.

[Brief description of drawings]

FIG. 1 is a partial front view showing a structural example when a soundproofing structure for a flooring floor according to the present invention is applied to a flooring floor above a floor.

FIG. 2 is a side view of a flooring floor and joists in the same configuration example.

FIG. 3 is a view showing a cushioning rubber member and a groove cut into a joist into which a leg portion thereof is press-fitted in the embodiment.

FIG. 4 is a front view showing an example of dimensions of joists to which a cushioning rubber member is attached.

FIG. 5 is a front view showing another example of the size of a joist to which a cushioning rubber member is attached.

[Explanation of symbols]

 1 joists 2 sterling 3 nails 4 flooring 5 rubber member 6 rubber member 10 Ohiki 11 rubber member 13 connecting member 11 field edge 12 ceiling board 101 lumber portion 102 lumber portion

Claims (2)

[Claims] 1. In a floor structure in which a mortar is hammered onto a joist with nails and a flooring is stuck on the mortar, in each of which a cushioning rubber is provided along both end portions of the surface on which the mortar is hammered. A soundproof structure for flooring floors, characterized in that joists are attached to the members at intervals, and nails are driven into the gaps between the rubber members. 2. A leg portion is integrally formed with a cushioning rubber member, and the leg portion of the rubber member is press-fitted into a groove cut into the joist to attach the rubber member to the joist surface. The soundproof structure for a flooring according to the above item 1, characterized in that