JP2008174964A - Sound isolation panel and blindfold fence - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sound isolation panel reduced in weight and having high sound isolation performance and a blindfold fence having the panel. <P>SOLUTION: This sound isolation panel comprises an intermediate plate 1 and a pair of panel bodies 2 stuck on both surfaces of the intermediate plate 1 through elastic plates 3. The elastic plates 3 are arranged at an interval. Each of the pair of panel bodies 2 comprise a surface plate 4 and a sound absorbing material 5 stuck on one surface of the surface plate 4. The sound absorbing material 5 is stuck on the elastic plate 5. The intermediate plate 1 and the surface plate 4 are formed of thin sheet metals, respectively. The elastic plate 3 is formed of a rubber plate. The sound absorbing material 5 is formed of a foam material or a porous material. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sound insulation panel and a blindfold fence, and more particularly, to a sound insulation panel that is lightweight and has high sound insulation performance from a low sound range to a high sound range, and a blindfold fence including the panel.

  Conventionally, as an example of a building sound insulation panel, as shown in the sectional view of FIG. 4, a core material 12 made of a foam material such as urethane foam or a porous material such as glass wool is provided between surface plates 11 made of gypsum board or the like. There is something in between. Hereinafter, this sound insulation panel is referred to as a conventional panel 1.

  According to the conventional panel 1, since the sound absorbing material 12 acts as a spring or a resistance by sandwiching the core material 12 between the surface plates 11, the sound insulation property as a whole is larger than that of the sound insulation panel not sandwiching the core material 12. Will improve.

  However, the sound insulation characteristic in the low sound range is not improved as in the case of the sound insulation panel in which the core material 12 is not sandwiched.

  Further, if the thickness of the surface plate 11 is increased, the transmission loss is improved. However, even if the weight is doubled according to the mass rule, the sound insulation characteristic is only improved by about 6 dB, and sufficient sound insulation characteristics can be improved. Don't be.

  Therefore, a sound insulation panel for solving the above problem is disclosed in Patent Document 1 (Japanese Patent Laid-Open No. Hei 8-60761). Hereinafter, this sound insulation panel is referred to as a conventional panel 2 and will be described with reference to the drawings.

  FIG. 5 is a partially cutaway perspective view showing the conventional panel 2, and FIG. 6 is a perspective view showing a sound insulation structure of the conventional panel 2.

  As shown in FIG. 5, the conventional panel 2 is provided with a sound absorbing layer 14 made of an air layer or a porous material and a sound insulation structure 15 between surface plates 13 made of plywood or the like. As shown in FIG. 6, the sound insulation structure 15 is formed by attaching a high-density mass sheet 17 made of, for example, a material in which vinyl chloride is filled with barium sulfate to an elastic plate 16 such as urethane foam having resonance spring elasticity. It consists of things.

Japanese Patent Laid-Open No. 8-60761

  According to the conventional panel 2, the sound insulation structure 15 resonates with the vibration of the surface plate 13 and absorbs vibration energy of the surface plate 13. It is possible to prevent a decrease in sound insulation characteristics.

  However, since the conventional panel 2 is a building sound insulation panel, it is necessary to ensure the strength as a building material. Therefore, a plaster board, a plywood or a resin plate is used as the surface plate 13. Moreover, the mass sheet 17 constituting the sound insulation structure 15 is also provided on the entire surface plate 13 and is heavy because of its high density. For these reasons, the conventional panel 2 has a problem that the weight is increased as compared with the conventional panel 1.

  Accordingly, an object of the present invention is to provide a sound insulation panel that is lightweight and provides high sound insulation performance, and a blindfold fence including the panel.

  The present invention has been made to achieve the above object, and is characterized by the following.

  The invention according to claim 1 includes an intermediate plate and a pair of panel main bodies attached to both surfaces of the intermediate plate via elastic plates, the elastic plates being provided with a gap therebetween, Each of the panel main bodies includes a surface plate and a sound absorbing material attached to one surface of the surface plate, the sound absorbing material is attached to the elastic plate, and the intermediate plate and the surface plate are thin-walled, respectively. The elastic plate is made of a rubber plate or a foamed rubber plate, and the sound absorbing material is made of a foamed material or a porous material.

  The invention described in claim 2 is characterized in that, in the invention described in claim 1, the thickness of the intermediate plate and the surface plate is 1.0 mm or less.

  The invention according to claim 3 is characterized in that, in the invention according to claim 1 or 2, the surface material of the panel body is formed in a wave shape.

  The invention described in claim 4 is characterized in that the sound insulation panel according to any one of claims 1 to 3 is provided.

  According to the present invention, it is possible to provide a sound insulation panel that is lightweight and can obtain high sound insulation performance from a low sound range to a high sound range, and a blindfold fence including the panel.

  One embodiment of the sound insulation panel of the present invention will be described with reference to the drawings.

  1 is a cross-sectional view showing a sound insulation panel according to the present invention, FIG. 2 is a cross-sectional view taken along line AA of FIG. 1, and FIG. 3 is a front view showing a blindfold fence provided with the sound insulation panel according to the present invention.

  In FIG. 1 and FIG. 2, 1 is an intermediate | middle board, for example, consists of a zinc iron plate with a plate thickness of 0.8 mm. Reference numeral 2 denotes a pair of panel main bodies attached to both surfaces of the intermediate plate 1 via elastic plates 3. The elastic plate 3 is made of, for example, a rubber plate or a foamed rubber plate having a thickness of 2 mm, and is provided at an interval. The panel body 2 includes, for example, a surface plate 4 made of a polyester resin-coated galvanium steel plate having a thickness of 0.8 mm, and a sound absorbing material 5 attached to one surface of the surface plate 4, and the sound absorbing material 5 is an elastic plate. 3 is pasted. The sound absorbing material 5 is made of a foam material such as urethane foam or a porous material such as glass wool. The surface of the sound absorbing material 5 on the elastic plate 3 side is covered with a protective sheet 6 made of aluminum foil or the like. As shown in FIG. 2, the surface plate 4 is formed in a wave shape in order to improve strength and sound insulation performance.

  According to the sound insulation panel of the present invention configured as described above, the intermediate plate 1 is provided between the pair of panel main bodies 2 including the surface plate 4 and the sound absorbing material 5 via the elastic plate 3. It becomes a panel of triple wall structure in which two sound insulation panels of Technology 2 are bonded back to back. Therefore, even better sound insulation characteristics than the sound insulation panel of the prior art 2 can be obtained.

  In addition, the intermediate plate 1 and the front plate 4 are both constituted by thin plates, and the elastic plate 3 is not attached to the entire surface of the panel body 2, so that the overall weight of the panel is the same as that of the prior art 2. It is lighter than the sound insulation panel.

  In order to build a blindfolded fence with the sound insulation panel (S) of the present invention configured as described above, as shown in FIG. 3, the sound insulation panels (S ). Since it is used as a blindfold fence, for example, it is not necessary to have a large strength as in the case of using it as a wall material for a building.

  As described above, according to the present invention, it is possible to obtain a sound insulation panel that is lightweight and provides high sound insulation performance, and a blindfold fence including the panel.

It is sectional drawing which shows the sound insulation panel of this invention. It is the sectional view on the AA line of FIG. It is a front view which shows the blindfold fence provided with the sound-insulation panel of this invention. It is sectional drawing which shows the conventional panel 1. FIG. It is a partial notch perspective view which shows the conventional panel 2. FIG. It is a perspective view which shows the sound insulation structure of the conventional panel 2. FIG.

Explanation of symbols

1: intermediate plate 2: panel main body 3: elastic plate 4: surface plate 5: sound absorbing material 6: protective sheet 7: support 11: surface plate 12: core material 13: surface plate 14: sound absorbing layer 15: sound insulation structure 16: Elastic plate 17: mass sheet

Claims (4)

  An intermediate plate and a pair of panel main bodies attached to both surfaces of the intermediate plate via elastic plates, the elastic plates being provided at intervals, each of the pair of panel main bodies being a surface plate And a sound absorbing material affixed to one surface of the front plate, the sound absorbing material is affixed to the elastic plate, the intermediate plate and the front plate are each a thin plate, and the elastic plate is A sound insulation panel comprising a rubber plate or a foam rubber plate, wherein the sound absorbing material is made of a foam material or a porous material.   The sound insulation panel according to claim 1, wherein the intermediate plate and the surface plate have a thickness of 1.0 mm or less.   The sound insulation panel according to claim 1, wherein the surface plate of the panel body is formed in a wave shape.   A blindfolded fence comprising the sound insulation panel according to any one of claims 1 to 3.

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