JP2008095317A - Structure for suppressing propagation of solid borne sound through floor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure for suppressing the propagation of a solid borne sound through a floor, which can effectively suppress the propagation of the solid borne sound through the floor. <P>SOLUTION: An opening 3 is provided in the plane of a first floor board 2; a second floor board 4 is installed in the opening 3 in such a manner that its side surface portion faces a side surface portion, surrounding the opening 3, of the first floor board 2, and such a manner that an annular gap 5 is formed between the side surface portions; a viscoelastic material 6 is interposed in the annular gap 5; and the second floor board 4 is supported in a horizontal two-dimensional direction by the viscoelastic material 6. Preferably, the viscoelastic material 6 is interposed at an interval in the circumferential direction of the annular gap 5. Preferably, the first floor board 2 is provided in the state of facing, for example, the inside of a toilet room 1 in such a manner as to surround the periphery of the second floor board 4, and elongated to an adjacent room 13 which is partitioned by a partition wall 12. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a structure for suppressing the propagation of solid sound on a floor.

For example, in a toilet room where a flush toilet is installed, sound insulation and sound absorption are provided on the walls and ceiling so that action sounds and cleaning sounds are not transmitted to the adjacent room. Since it is continuously integrated with the floor, there is a problem that the solid sound transmitted to the floor of the toilet room is transmitted to the adjacent room through the floor.
JP 2002-294984 A

  In view of the above problems, an object of the present invention is to provide a floor solid sound propagation suppressing structure that can effectively suppress the propagation of solid sound through the floor.

  The above-described problem is that an opening is provided in the plane of the first floor plate, and the second floor plate is opposed to the side portion surrounding the opening of the first floor plate in the opening, and the side portions thereof. It is installed so as to form an annular gap in between, a viscoelastic material is interposed in the annular gap, and the second floor board is supported in the horizontal two-dimensional direction by the viscoelastic material. This is solved by the solid sound propagation suppression structure of the floor (first invention).

  In this structure, since the gap is provided between the first floor plate and the second floor plate and insulated, the propagation of solid sound between these floor plates is effectively suppressed. In addition, a viscoelastic material is interposed in the gap, and the second floor board is supported in the horizontal two-dimensional direction by the viscoelastic material so that the second floor board is supported in the horizontal two-dimensional direction. Nonetheless, the solid sound transmitted to one floor is attenuated by the viscoelastic material and is not transmitted to the other floor, and the effect of suppressing the propagation of the solid sound between the floors is also lost. There is nothing.

  In the first invention, a plurality of viscoelastic bodies may be provided so as to be spaced apart in the circumferential direction of the annular gap (second invention). In this case, the contact area between the first floor board and the second floor board via the viscoelastic material can be reduced, the insulation effect can be increased, and the amount of viscoelastic material used can be reduced. And can provide a cost advantage.

  In the first and second inventions, the second floor board may be supported on the floor lower surface by a second support material different from the first support material for supporting the first floor board on the floor lower surface (third invention). ). In this case, it is possible to suppress the propagation of the solid sound between the floor boards through the support material that supports the floor boards on the floor lower surface.

  In the first to third inventions, the first floor plate is provided facing the first chamber so as to surround the second floor plate, and is extended to the adjacent second chamber partitioned by the partition wall. (4th invention). In this case, it is possible to suppress the propagation of solid sound through the floor plate between the first chamber and the second chamber, while the floors of the adjacent first chamber and second chamber are continuous with the first floor plate. In addition, the relationship between the partition wall, the opening of the first floor board, and the second floor board can be easily constructed.

  In addition, an annular frame having the inside as the first opening is installed in the second opening provided in the plane of the first floor board so as to constitute a part of the first floor board, and in the first opening, The second floor plate is installed so that its side surface portion faces the side surface portion surrounding the first opening of the annular frame, and an annular gap is formed between the side surface portions, and a viscoelastic material is interposed in the annular gap. The second floor board is supported in the horizontal two-dimensional direction by the viscoelastic material, and is also solved by the floor solid sound propagation suppressing structure (the fifth invention).

  Especially in this structure, since the inside of the annular frame separate from the first floor plate is used as the first opening for installing the second floor plate, the annular frame, the second floor plate, and the viscoelastic material can be easily and accurately engaged with each other. The solid sound propagation suppression effect can be made high, and the formation of the second opening with respect to the first floor board need not be highly accurate considering the interposition of the viscoelastic material, Formation of the 2nd opening part to the 1st floor board can be made easy.

  In the fifth invention, the first floor board may be provided facing the first chamber so as to surround the periphery of the annular frame, and may be extended to the adjacent second chamber partitioned by the partition wall (first 6 invention). In this case, as described in the fourth invention, the floor plate between the first chamber and the second chamber is constructed in such a manner that the floors of the adjacent first chamber and the second chamber are connected by the first floor plate. Propagation of solid sound through the wall can be suppressed, and the construction relationship between the partition wall, the second opening of the first floor board, and the annular frame can be made easy.

  Since the present invention is as described above, it is possible to effectively suppress the propagation of solid sound through the floor.

  Next, the best mode for carrying out the present invention will be described with reference to the drawings.

  The floor solid-state sound propagation suppression structure of the first embodiment shown in FIGS. 1 and 2 is a case where the toilet room 1 is a first room and is applied to the floor, and the floor is the surface of the first floor board 2. An opening 3 is provided in the opening 3, and the second floor plate 4 is opposed to the side surface surrounding the opening 3 of the first floor plate 2 in the opening 3, and an annular gap is provided between the side surfaces. 5, a viscoelastic material 6 is interposed in the annular gap 5, and the second floor plate 4 is supported by the viscoelastic material 6 in a horizontal two-dimensional direction. Specifically, the viscoelastic material 6 is interposed so as to be L-shaped in plan view at each of the four corners of the annular gap 5 so as to be spaced in the circumferential direction of the annular gap 5.

  The viscoelastic material 6 may be made of a gel or rubber having a low hardness of about 15 degrees or less, and the size of the gap is, for example, about 3 mm.

  In addition, the second floor plate 4 is a bundle as a second support material, which is different from the bundle 8, the draw 9 and the joists 10 as the first support material for supporting the first floor plate 2 on the concrete soil surface 7 under the floor. 11 is supported on the underfloor soil surface 7.

  The first floor board 2 is provided facing the toilet room 1 so as to surround the second floor board 4, and is extended to the adjacent room 13 as the second room partitioned by the partition wall 12, On the 2nd floor board 4, the toilet bowl 14 used as a sound source is installed.

  As shown in FIG. 2, after the first floor board 2 is installed on the site, the opening 3 is formed in the first floor board 2 in consideration of the installation position of the toilet 14, and the second support material is used. Is installed on the concrete soil surface 7 under the floor, and then the second floor plate 4 having the viscoelastic material 6 bonded to the side surface with double-sided tape is supported by the bundle 11 and installed in the opening 3. To do.

  In that case, the viscoelastic materials 6 can be brought into close contact with the side surface surrounding the opening 3 of the first floor board 2 so as not to come into contact in a compressed state or into a non-contact state. It is good to have been made. Moreover, the viscoelastic material 6 may be adhered to the side surface surrounding the opening 3 of the first floor board 2, or may simply be in contact without being adhered.

  In the above structure, since the gap 5 is provided between the first floor plate 2 and the second floor plate 4 and the floor plates 2 and 4 are insulated, the propagation of solid sound between the floor plates 2 and 4 is effective. Therefore, it is effectively suppressed that solid sounds such as action sounds and washing sounds in the toilet room 1 are transmitted to the adjacent rooms 13 through the floor plates 2 and 4.

  Moreover, viscoelastic materials 6 are interposed in the gap 5, and the second floor plate 4 is supported by the viscoelastic materials 6 in the horizontal two-dimensional direction. The solid sound transmitted to the second floor plate 4 is suppressed from being attenuated by the viscoelastic material 6 and transmitted to the first floor plate 2 without being swayed in the dimensional direction. The effect of suppressing the propagation of solid sound is not impaired.

  In addition, since a plurality of viscoelastic materials 6 are provided so as to be spaced apart in the circumferential direction of the annular gap 5, the contact between the first floor plate 2 and the second floor plate 4 via the viscoelastic material 6. The area can be reduced, the insulation effect can be increased, the propagation of solid sound can be effectively suppressed, and the amount of viscoelastic material 6 used can be reduced. This is advantageous in terms of cost.

  Further, since the second floor board 4 is supported on the underfloor concrete interstitial surface 7 by a support material 11 different from the support materials 8, 9, 10 that support the first floor board 2 on the underground concrete interstitial surface 7. Further, the propagation of the solid sound from the second floor plate 4 to the first floor plate 2 through these supporting materials can be suppressed.

  Moreover, since the 1st floor board 2 is equipped facing the inside of the toilet room 1 so that the circumference | surroundings of the 2nd floor board 4 may be enclosed, and it has the structure extended to the adjacent room 13 partitioned off by the partition wall 12, While the toilet room 1 and the adjacent room 13 are connected by the first floor board 2, the propagation of solid sound from the toilet room 1 to the adjacent room 13 through the floor board can be suppressed, and the partition wall 12 and the The relationship between the opening 3 of the first floor board 2 and the second floor board 4 can be easily constructed, and the above-described structure can be adopted in the renovation.

  The solid sound propagation suppression structure of the floor according to the second embodiment shown in FIGS. 3 and 4 is a rectangular shape having a first opening 3 inside, and an annular frame 15 made of the same material as that of the first floor board 2. The first opening of the annular frame 15 is fixed to the second opening 16 provided in the plane of 2 with a screw 17 so as to constitute a part of the first floor plate 2 and fixed with screws 17. The second floor plate 4 is installed on the portion 3 so that the side surface portion thereof faces the side surface portion surrounding the first opening 3 of the annular frame 15 and an annular gap 5 is formed between the side surface portions. Viscoelastic materials 6 are interposed in the gap 5 in the same manner, and the second floor plate 4 is supported by the viscoelastic materials 6 in the horizontal two-dimensional direction. Note that the boundary between the second floor plate 4 and the annular frame 15 may be left in an abutted state, or may be hidden by a cover. Similarly to the first embodiment, the first floor board 2 is provided facing the inside of the toilet room 1 so as to surround the circumference of the annular frame 15 and is extended to the adjacent room 13 partitioned by the partition wall 12. ing.

  Especially in this structure, since the inside of the annular frame 15 separate from the first floor plate 2 is the first opening 3 for installing the second floor plate, the annular frame 15, the second floor plate 4, the viscoelastic material 6 ... Can be easily made into a high-accuracy relationship, and the effect of suppressing the propagation of solid sound can be increased, and the formation of the second opening 16 with respect to the first floor board 2 takes into account the interposition of the viscoelastic materials 6. Therefore, the second opening 16 can be easily formed on the first floor board 2 without the need for high accuracy.

  The solid sound propagation suppression structure of the floor of the third embodiment shown in FIG. 5 is a case where a material different from the first floor plate is used as the annular frame 15, for example, an annular frame 15 made of resin or metal. The annular frame 15 is provided with a collar portion 15a that is superimposed on the upper surface around the second opening 16 of the first floor plate 2, and the second opening 16 formed in the first floor plate 2 is somewhat complicated. Even so, it is possible to obtain a clean finish by simply covering the flange portion 15 a and installing the annular frame 15 in the second opening portion 16.

  Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made without departing from the spirit of the invention. For example, in the above embodiment, the case where the first room is the toilet room and the second room is the next room is shown. However, the first room is a wash-dressing room where the washing machine is installed, and the second room is the next room. And may be applied in various ways.

  Moreover, although the case where the sound source was installed in the 2nd floor board 4 side was shown in said embodiment, the sound source may be installed in the 1st floor board 2 side, In that case, from the 1st floor board 2 Propagation of solid sound to the second floor plate 4 can be effectively suppressed as well.

The solid sound propagation suppression structure of the floor of a 1st embodiment is shown, a figure (I) is a section front view and a figure (B) is an II line view figure of a figure (I). FIG. 1 (a) is a sectional front view showing an example of a construction method, and FIGS. The solid sound propagation suppression structure of the floor of 2nd Embodiment is shown, A figure (A) is a cross-sectional front view, A figure (B) is a II-II arrow directional view of a figure (I). FIG. 1 (a) is a sectional front view showing an example of a construction method, and FIGS. The solid sound propagation suppression structure of the floor of 3rd Embodiment is shown, The figure (A) is a cross-sectional front view which shows an example of a construction method, and a figure (B) and a figure (C) are principal part expansion front views.

Explanation of symbols

1 ... Toilet room (first room)
2 ... 1st floor board 3 ... Opening part (1st opening part)
4 ... 2nd floor board 5 ... Annular gap 6 ... Viscoelastic material 7 ... Concrete soil surface (floor bottom)
8 ... Bundle (first support material)
9 ... Ohiki (first support material)
10 ... joist (first support material)
11 ... Bundle (second support material)
12 ... Partition wall 13 ... Next room (second room)
14 ... Toilet bowl (sound source)
15 ... annular frame 16 ... second opening

Claims (6)

  An opening is provided in the plane of the first floor board, and the second floor board is opposed to the side face surrounding the opening of the first floor board in the opening, and an annular gap is formed between the side faces. A solid sound propagation of a floor, characterized in that a viscoelastic material is interposed in the annular gap, and the second floor board is supported in a horizontal two-dimensional direction by the viscoelastic material. Suppression structure.   2. The solid sound propagation suppression structure for a floor according to claim 1, wherein a plurality of the viscoelastic bodies are provided so as to be spaced apart in the circumferential direction of the annular gap.   The said 2nd floor board is supported on the floor lower surface by the 2nd support material different from the 1st support material which supports a 1st floor board on a floor lower surface, The solid sound propagation of the floor of Claim 1 or 2 Suppression structure.   The first floor board is provided to face the first chamber so as to surround the second floor board, and is extended to an adjacent second chamber partitioned by a partition wall. The solid sound propagation suppression structure of the floor as described in any one.   An annular frame having the inside as the first opening is installed in the second opening provided in the plane of the first floor board so as to constitute a part of the first floor board, and the second opening is provided in the second opening. The floor plate is installed so that the side surface portion faces the side surface portion surrounding the first opening of the annular frame, and an annular gap is formed between the side surface portions, and a viscoelastic material is interposed in the annular gap, A solid sound propagation suppressing structure for a floor, characterized in that the second floor board is supported in the horizontal two-dimensional direction by the viscoelastic material.   The floor according to claim 5, wherein the first floor board is provided facing the first chamber so as to surround the periphery of the annular frame and is extended to an adjacent second chamber partitioned by a partition wall. Solid sound propagation suppression structure.

Images