JPH1113271A - Soundproof double floor structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability by previously fixing a sound absorbing material having a width almost coincident with a floor joist interval to the reverse of a floor joist cross tie material, installing/fixing the floor joist cross tie material between floor joists, and arranging a floor material on it. SOLUTION: A sound absorbing material 5 having a width almost coincident with a floor joist interval is previously fixed to the reverse of a floor joist cross tie material 4, and the floor joist cross tie material is installed/fixed between floor joists, and a floor material 3 is arranged on it. By being constituted in this way, since fixing work of the sound absorbing material 5 between the floor joists and installing work of the floor joist cross tie material 4 between the floor joists can be simultaneously performed, work time can be sharply shortened. Since the sound absorbing material 5 can be simultaneously installed/ fixed between the floor joists when the floor joist cross tie material 4 is installed/fixed between the floor joists, work in a floor joist unstable condition is eliminated, and workability is improved. Therefore, a process to fix the sound absorbing material to the floor joists can be eliminated, and work in a floor joist cross tie material or floor joist unstable condition can also be eliminated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a soundproof double floor structure.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 8, an end of a sound absorbing material 5 is fixed to an upper surface of a joist 2 supported by a supporting leg 1 with a nail body 7, and the sound absorbing material 5 is suspended between the joists. Joist side connecting material 4
Was installed between the joists and a floor material was arranged on the joists 2 to have a soundproof double floor structure.

[0003]

However, in the prior art, the sound absorbing material 5 is provided before the joist horizontal connecting material 4 is erected and fixed.
, The joists 2 were unstable and difficult to work. For this reason, the sound absorbing material 5 may not be correctly attached between the joists. In addition, since the sound absorbing material 5 is fixed to the joist 2 and then the joist lateral connecting material 4 is further fixed, the number of working steps is large and the construction takes time.

[0004] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a soundproof double floor structure with improved workability.

[0005]

According to a first aspect of the present invention, there is provided a soundproof double floor structure in which a sound absorbing material having a width substantially matching the joist interval is fixed in advance on the back surface of the joist horizontal connecting material. A connecting material is erected and fixed between joists, and a floor material is arranged thereon. Therefore, in this case, conventionally, the number of man-hours required to fix the sound absorbing material between the joists first and then fix the joist lateral connecting material between the joists was increased, but the sound absorbing material was fixed to the back surface of the joist horizontal connecting material in advance. By doing so, the step of fixing the sound absorbing material to the joist can be omitted, and the working time can be greatly reduced. Conventionally, the sound absorbing material was fixed before stabilizing the joists by laying and fixing the horizontal joists between the joists, so the joists were unstable and it was difficult to work, but just installing the joists horizontal joists The workability can be improved because the sound absorbing material can be disposed.

The soundproof double floor structure according to a second aspect of the present invention is the soundproof double floor structure according to the first aspect, wherein a convex step is provided substantially at the center of the upper surface of the joist, and the joist is provided on the upper surface of the lateral joist avoiding the convex step. The end portion of the horizontal connecting member is placed, and the joist horizontal connecting member is erected and fixed between the joists. Therefore, in this case, in addition to the above-described effects, the erection fixing position of the joist lateral connecting material is regulated by the protruding steps, so that the erection fixing position of the joist lateral connecting material can be easily determined, and the construction is further simplified.

A soundproof double floor structure according to a third aspect of the present invention is the soundproof double floor structure according to the second aspect, characterized in that the surface of the joist horizontal connecting material is substantially flush with the upper surface of the convex step portion. Therefore, in this case, in addition to the above-described effects, the flooring material is supported by the upper surface of the projecting step and the upper surface of the joist lateral connecting material, so that the flooring material can be supported more firmly than when only the upper surface of the projecting step is supported.

A soundproof double floor structure according to a fourth aspect of the present invention is the soundproof double floor structure according to any one of the first, second, and third aspects, wherein the joist lateral connecting member is formed over the entire length of the joist in the longitudinal direction. Things. Therefore, in this case, in addition to the above-described effects, since the joist horizontal connecting material is formed over the entire length of the joist, the joist horizontal connecting material can be installed between the joists at once, and the construction time can be further reduced. Furthermore, the sound absorbing material can be fixed over the entire length in the longitudinal direction of the joist, so the sound absorbing material can be fixed over the entire length and it is excellent in handling. Can be set up.

Further, if the joist horizontal connecting material surface is substantially flush with the upper surface of the protruding step, the floor material will be supported over the entire surface, so that the underfloor which has been used for attaching the floor surface finishing material has been used. It becomes possible to use a horizontal connecting material instead of a base material, and a floor base material becomes unnecessary, which leads to simplification of construction.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 are views showing a first embodiment of the present invention according to all claims. In the present embodiment, a sound absorbing material 5 whose width substantially matches the joist interval is fixed in advance to the back surface of the joist horizontal connecting material 4, the joist horizontal connecting material 4 is erected between the joists, and the floor material 3 is placed thereon. Is arranged. By doing so, the fixing operation of the sound absorbing material 5 to the joist and the joist lateral connecting material 4 which were conventionally separate operations are performed.
The work of erection and fixing to the joists can be performed at the same time, and the working time can be greatly reduced as compared with the conventional case.
In addition, since the sound absorbing material 5 can be erected and fixed between the joists when the joist horizontal connecting material 4 is erected and fixed between the joists, the sound absorbing material 5 can be fixed before the conventional joist horizontal connecting material 4 is erected and stabilized. Although the work was performed in a state where the joist 2 was unstable because of fixing the joists between the joists, such an operation is eliminated and the workability is improved. In addition, a protruding step 6 is provided substantially at the center of the joist upper surface, and the end of the joist lateral connecting material 4 is placed on the upper side of the joist avoiding the protruding step 6, and the joist lateral connecting material 4 is attached to the joist. Since the erection fixing position is restricted by the convex step 6, the erection fixing position of the joist lateral connecting member 4 is easily determined, so that the erection fixing position of the joist lateral connecting member 4 is easily determined and the construction is further simplified. Since the surface of the joist lateral connecting member 4 is substantially flush with the upper surface of the convex step portion 6, the floor member 3 is supported by the upper surface of the convex step portion 6 and the upper surface of the joist lateral connecting material 4, and is supported only by the upper surface of the convex step portion 6. The flooring 3 can be more firmly supported. Further, since the joist lateral connecting member 4 is formed over the entire length of the joist 2 in the longitudinal direction, in addition to the above-mentioned effect, the joist lateral connecting member 4 can be installed at once between the joists, and the construction time can be further reduced. Further, since the joist 2 is formed over the entire length in the longitudinal direction, the sound absorbing material 5 is connected to the joist lateral connecting material 4 over the entire length.
Can be fixed to the back side, excellent handling, joist horizontal connecting material 4
The sound absorbing material 5 can be arranged at the correct position between the joists only by erection and fixing between the joists. Furthermore, since the surface of the joist lateral connecting material 4 is substantially flush with the upper surface of the convex step 6 over the entire length of the joist, the flooring material 3 is supported by the convex step 6 of the joist 2 and the joist horizontal connecting material 4 over the entire surface. Therefore, it becomes possible to use the horizontal connecting material 4 instead of the floor base material 8 which is usually used when mounting the floor material 3, and the floor base material 8 becomes unnecessary, which leads to simplification of construction, At the same time, material costs can be reduced.

In the present embodiment, the horizontal connecting member 4
Is set to 900 mm or 1800 mm in consideration of versatility at an actual construction site. Further, although the nail body 7 is used for fixing the joist lateral connecting member 4 to the joist 2, the nail body 7 does not need to be used in particular, and may be fixed by using an adhesive, for example.

Further, when the sound absorbing material 5 is a flexible body, if the joist lateral connecting member 4 is shifted and fixedly erected, the sound absorbing material is pressed against the joist side surface and deformed, and the opposite joist side surface and the sound absorbing material 5 are deformed. It is conceivable that the gap between them becomes large and the soundproofing effect is remarkably reduced. However, since the erection fixing position of the joist lateral connecting member 4 is restricted by the convex step 6, the sound absorbing material 5 is shifted from a normal position. It is possible to secure soundproof performance without any trouble.
Further, when the sound absorbing material 5 is a material having resilience, the sound absorbing material 5
Can be compressed.
After fixing, the sound absorbing material 5 is compressed and the joist horizontal connecting material 4 is packed to facilitate handling of the joist horizontal connecting material 4 during transportation and storage at a construction site.

FIG. 4 is a diagram showing a second embodiment of the present invention according to all claims. In this embodiment, the shape of the sound absorbing material 5 in the first embodiment is changed to the shape shown in FIG.
Other items are the same as those of the first embodiment. As a result, the sound absorbing material 4 used in the conventional example may be changed to the joist lateral connecting material 4, and the change from the conventional example according to the present invention can be minimized. Of course, the shape of the sound absorbing material 5 is not limited to the shapes shown in the first and second embodiments.
A sound absorbing material 5 indicated by -41642 is connected to a joist horizontal connecting material 4.
It may be used fixed on the back surface.

FIGS. 5 and 6 show an embodiment of the present invention according to claim 2. FIG. In the present embodiment, the joist upper surface is provided with a protruding step 6 substantially at the center, and the end portion of the joist horizontal connecting material 4 is placed on the lateral upper surface of the joist avoiding the protruding step 6, and the joist horizontal connecting is performed. The material 4 is erected and fixed between the joists.

FIG. 7 shows claim 1 or claim 4.
FIG. 6 is a diagram showing an embodiment in a case where no protruding step is provided on the joist. Since the sound absorbing material 5 whose width substantially matches the joist interval was fixed in advance on the back surface of the joist horizontal connecting material 4, the joist horizontal connecting material 4 was erected and fixed between the joists, and the floor material 3 was arranged thereon. Thus, even in a soundproof double floor structure using a normal joist 2 having no protruding step 6, the joist lateral connecting member 4 can be used.

[0016]

As described above in detail, according to the soundproof double floor structure of the first aspect, the sound absorbing material whose width is substantially equal to the joist spacing is fixed in advance on the back surface of the joist horizontal connecting material. Since the connecting material is erected and fixed between the joists and the floor material is placed on it, the process of fixing the sound absorbing material to the joists can be omitted, and the horizontal joist connecting material can also be used when the joists are unstable. Can be omitted.

According to the soundproof double floor structure of the second aspect, in addition to the above-mentioned effects, in addition to the above-mentioned joist horizontal connecting material, the end of the joist horizontal connecting material is provided on the upper surface of the joist on the side of the joist. Since it was mounted and the joist horizontal connecting material was erected and fixed between the joists,
This makes it easier to determine the fixing position of the joist horizontal connecting material and further simplifies the construction.

According to the soundproof double floor structure of the third aspect, in addition to the above-mentioned effects, the floor material is made substantially flush with the upper surface of the protruding step portion by making the surface of the joist lateral connecting material substantially flush with the upper surface of the protruding step portion. Because it is supported by the top of the joist horizontal connecting material, it is possible to support the floor material more firmly.

Further, according to the soundproof double floor structure of the fourth aspect, in addition to the above-mentioned effects, the joist horizontal connecting material is formed over the entire length of the joist in the longitudinal direction, so that the joist horizontal connecting material can be formed at one time between the joists. The construction time can be further shortened. Furthermore, since it is formed over the entire length of the joist in the longitudinal direction, it is possible to fix the sound absorbing material over the entire length, it is excellent in handling, just by installing and fixing the joist horizontal connecting material,
The sound absorbing material can be arranged at the correct position between the joists over the entire length.

Further, if the joist lateral connecting material surface is substantially flush with the upper surface of the convex step portion, the floor material is supported over the entire surface, so that the underfloor which has been used for attaching the floor surface finishing material has been used. It becomes possible to use a horizontal connecting material instead of a base material, and a floor base material becomes unnecessary, which leads to simplification of construction.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of a soundproof double floor structure according to the present invention.

FIG. 2 is a cross-sectional view showing the first embodiment.

FIG. 3 is a perspective view showing a joist horizontal connecting material used in the first embodiment.

FIG. 4 is a perspective view showing a joist horizontal connecting member used in a second embodiment of the soundproof double floor structure according to the present invention.

FIG. 5 is a perspective view showing a third embodiment of a soundproof double floor structure according to the present invention.

FIG. 6 is a sectional view showing the third embodiment.

FIG. 7 is a sectional view showing a fourth embodiment of the soundproof double floor structure according to the present invention.

FIG. 8 is a perspective view showing a conventional soundproof double floor structure.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 support leg 2 joist 3 floor material 4 joist horizontal connecting material 5 sound absorbing material 6 convex step part 7 nail body 8 floor base material

Claims (4)

[Claims] 1. A soundproof double floor structure in which a sound absorbing material is arranged between joists supported by supporting legs, and a floor material is arranged thereon. A soundproof double floor structure in which a sound absorbing material substantially conforming to the above is fixed in advance, the joist lateral connecting material is erected between the joists, and a floor material is arranged thereon. 2. A jog upper surface is provided at a substantially central portion of the upper surface of the joist, and an end portion of the joist horizontal connecting material is placed on the lateral upper surface of the joist avoiding the projecting step, and the joist horizontal connecting material is joisted. 2. The soundproof double floor structure according to claim 1, wherein the soundproof double floor structure is fixed between the two floors. 3. The soundproof double floor structure according to claim 2, wherein the surface of the joist lateral connecting material is substantially flush with the upper surface of the protruding step. 4. The soundproof double floor structure according to claim 1, wherein the joist lateral connecting material is formed over the entire length of the joist in the longitudinal direction.