JP4261396B2 - Sound absorption pad - Google Patents

Description

  The present invention relates to a dry bag suitably provided at a boundary of a site such as a house or a parking lot or a road boundary, and particularly relates to a bag having excellent sound absorption.

Japanese Utility Model Publication No. 53-10547 JP-A-9-144387 Conventionally, Japanese Utility Model Laid-Open No. 53-10547 proposes a dry-type scissor in which a steel sheet scissors are attached to a U-shaped stopper provided on a support column. Japanese Patent Application Laid-Open No. 9-144387 includes a column having a mounting plate portion, an exterior material, and a C-shaped mounting member mounted in a vertical direction on the exterior member. The mounting plate portion of the column is mounted on the cross-sectional C-shaped mounting member. A dry exterior has been proposed in which an exterior material made of a cement-based inorganic board or the like is attached to a support by inserting a slab. In addition, in the Japanese Patent Application Laid-Open No. 2002-174056, the present applicant is a dry type casket composed of struts erected at an appropriate interval on the ground surface and panels attached to the front and back of the strut at an interval. The panel proposes a dry cocoon made of a synthetic resin base and a metal foil attached to the front and back of the base.

  However, in the dry type cocoons proposed in Japanese Utility Model Publication No. 53-10547, the weight of the steel plate is increased and there is a problem in workability. Further, in the dry outer structure proposed in Japanese Patent Application Laid-Open No. 9-144387, since the cement-based inorganic board is used as a panel, the weight is increased and the workability is problematic. Further, in any of the above-mentioned dry type baskets, although there is an effect of blocking the line of sight, there is a problem that the sound insulation performance is inferior. Further, the present invention is a dry paddle made up of a column, which is proposed in Japanese Patent Application Laid-Open No. 2002-174056, and a panel which is erected on the ground surface at an appropriate interval, and a panel which is attached to the front and back of the column at an interval. The problem is that this panel is made of a synthetic resin base and a metal foil attached to the front and back of the base, so that the dry scissors are likely to leak sound from the gap between the panels and the gap between the panel and the ground surface. There is a need for a panel with a higher sound insulation capability.

  Therefore, the present inventor proposes a sound-absorbing bowl excellent in sound-absorbing performance as a result of intensive studies in view of the conventional drawbacks.

The sound absorbing pad according to claim 1 of the present invention is a pad in which a panel is provided on a column that is erected on the ground surface at an appropriate interval. The panel includes a pair of plate members provided on the front and back surfaces at an appropriate interval. It consists of a horizontal frame provided at the upper and lower edges of the plate material and a vertical frame provided at the left and right edges, and is constructed over the struts. The back plate is made of a synthetic resin substrate and the front and back surfaces of the substrate. The surface plate is composed of a base made of synthetic resin and the metal plate provided on the front and back of the base, and the surface plate is formed from the front metal plate through the base to the back metal plate. In addition, a large number of through holes penetrating through the plate are provided, and in addition, a sound absorbing material is provided between the front and back plate members, so that sound transmitted through the through holes of the surface plate member is absorbed by the sound absorbing material. The sound that has passed through the surface plate is absorbed by the sound absorbing material. It has been made to be.

As described above, the sound absorbing pad according to claim 1 of the present invention is a panel in which a panel is provided on a column that is erected on the ground surface at an appropriate interval, and this panel is provided on the front and back surfaces at an appropriate interval. It consists of a pair of plate materials, a horizontal frame provided at the upper and lower edges of the plate material, and a vertical frame provided at the left and right edges. It consists of a metal plate provided on the front and back of this substrate, the surface plate material consists of a substrate made of synthetic resin and a metal plate provided on the front and back of this substrate, and the surface plate material passes through the substrate from the front metal plate A large number of through holes penetrating the metal plate on the back are drilled. In addition, a sound absorbing material is provided between the front and back plate materials, and the sound transmitted through the through holes of the plate material on the front surface is absorbed by the sound absorbing material. and characterized in that the adapted, sound transmitted through the sheet material of the surface Because it is made to be absorbed by the sound material, it is excellent in sound absorption, and it is blocked by the back plate material, so that the sound hardly leaks to the back side, and in addition, the same back plate material can be used. There is no sense of incongruity.

The present invention will be described below with reference to the drawings.
FIG. 1 is a front view showing an example of an embodiment of the sound absorber according to the present invention. In the figure, A is a panel, and spans between struts 2 erected on the ground surface at appropriate intervals. A headboard 3 is provided on the upper edge of the panel to hold the panel and conceal the upper edge of the panel.

  A horizontal frame having a U-shaped cross section is disposed on the upper and lower edges of the panel, and a vertical frame is disposed on the left and right edges. Plate members are provided on the front and back of the horizontal frame and the vertical frame with a space therebetween. Glass wool mats are inserted in the space between the front and back plates.

  A first example of the sound absorber according to the present invention will be described. In this example, as shown in FIG. 2, the back plate is made by attaching an aluminum alloy plate 12 to the front and back surfaces of a foamed polyethylene substrate, and the front plate is made of a foamed polyethylene substrate. An aluminum alloy plate 12 is adhered to the back surface, and a large number of through holes are formed. As the synthetic resin constituting the substrate 11, an olefin-based synthetic resin that does not discharge harmful substances such as chlorine gas and dioxin when incinerated as waste is preferably used, but foamed polyethylene is used. If it is possible, it is lighter and has excellent transportability and workability.

  A decorative layer 13 made of a synthetic resin is formed on the surface of the aluminum alloy plate 12 adhered to the surface of the base 11, and this decorative layer 13 is made of an olefin-based synthetic resin, a fluororesin, a vinyl chloride resin, or the like. The synthetic resin film may be formed by sticking to the surface of the aluminum alloy plate 12, or may be formed by epoxy resin or acrylic resin coating. However, the polyester is excellent in weather resistance and has high surface hardness and is hardly damaged. Baking is particularly suitable. The decorative layer 13 may be formed on a smooth surface, but if it is embossed, it is beautiful and more excellent.

  In the above example, a glass wool mat was inserted between the front and back plate materials, but the present invention is not limited to this. The glass wool mat described above is preferably used because of its excellent sound absorption.

  A reference example of the sound absorber will be described. In this example, the back plate is made of foamed polyethylene with an aluminum alloy plate 12 attached to the front and back surfaces, and the front plate is made of aluminum alloy expanded metal on the front and back of the aluminum alloy fiber. It is provided and a laminated body is constituted, and this laminated body is pressure-bonded to form a plate material. The plate material on the surface is porous and easily absorbs sound, and the sound absorbing capacity of the sound absorber is enhanced in combination with the glass wool mat disposed between the front and back plate materials.

It is a front view which shows an example of embodiment of this invention sound absorber. It is sectional drawing which shows an example of embodiment of this invention sound absorber.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 board | plate material 11 base | substrate 12 aluminum alloy board 13 decorative layer 2 support | pillar 3 Kasagi A panel

Claims (1)

In the case where a panel is provided on a column that is erected on the ground surface at an appropriate interval, this panel is composed of a pair of plate materials provided on the front and back sides at appropriate intervals and horizontal plates provided on the upper and lower edges of the plate material. It consists of a frame and a vertical frame provided on the left and right edges, and is laid over the struts, and the back plate is made of a synthetic resin base and metal plates provided on the front and back of the base. The plate material is composed of a base made of synthetic resin and metal plates provided on the front and back surfaces of the base material, and the surface plate material has a large number of through holes penetrating from the front metal plate to the back metal plate through the substrate. In addition, a sound absorber is provided with a sound absorbing material between the front and back plate members, and the sound absorbing material absorbs the sound transmitted through the through holes of the plate member on the surface .

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