JP6054144B2 - Sound absorption panel - Google Patents

Description

  The present invention relates to a sound-absorbing panel. More specifically, the present invention is mainly used as an interior panel for concert halls, public facilities, schools, hospitals, libraries, company meeting rooms, general houses, etc. The present invention relates to a sound absorbing panel having excellent sound absorbing performance.

  In particular, interior panels used in concert halls, public facilities, schools, hospitals, libraries, company meeting rooms, and the like are desired to have sound absorbing performance. Conventionally, as a sound absorbing plate, a porous board having a large number of sound absorbing holes formed on the surface is generally used.

  However, many sound absorption holes are made through the surface decorative layer on inorganic boards such as gypsum board and calcium silicate board, which are often used as inner wall panels, or wooden boards such as solid wood and decorative plywood. When there is a hole, there is a limit to the hole diameter that can be formed in these boards, and it is difficult to reduce the diameter to an inconspicuous level. Therefore, even if the surface decorative layer is finished nicely by folding printing etc., not only the inner surface of each hole but also the light colored parts such as gypsum board and calcium silicate board will be exposed and noticed through each hole There is a risk that the overall appearance will be poor.

  In addition, there is a case where a cloth such as a glass cloth is stuck on the surface. In that case, it is difficult to remove the attached dust by wiping off the cloth. There is a problem that it may be discolored and look bad.

JP 2001-132132 A JP 2001-65077 A Japanese Utility Model Publication No. 54-98014

  As mentioned above, when trying to make porous from the surface decorative layer in order to give sound-absorbing properties, such as inorganic boards and wooden boards that are often used as inner wall panels, the pore size that can be formed in these boards There is a limit and it is difficult to reduce the diameter to an inconspicuous level, so each hole may be obstructive and the appearance may be damaged. Conventionally, the emphasis is on the point of sound absorption, and the design Was second to second. In addition, when a cloth such as a glass cloth is used on the surface, there is a problem that dust removal is difficult and unsanitary, and the color may change and the appearance may deteriorate.

  The present invention was made to solve such problems in the prior art, and by making the holes for providing sound absorption properties inconspicuous, it looks good and it is easy to remove dust. Therefore, it is hygienic and has excellent sound absorption performance. Furthermore, it is suitable for construction of various types of small lots, as a concert hall, public facilities, schools, hospitals, libraries, company meeting rooms, or interior housing panels. It is an object of the present invention to provide a sound-absorbing panel suitable for use as an object.

  The invention according to claim 1 for solving the above-mentioned problem is a first layer which is a resin decorative film capable of printing expression of an arbitrary pattern or color pattern and having a pinhole perforated on the entire surface or in a wide range. A second layer that is a thin metal plate in which a small-diameter hole having the same diameter as or larger than that of the pinhole communicating with the pinhole is formed in correspondence with a penetration position of the pinhole; A sound absorbing panel comprising a layer and a third layer which is a sound absorbing material layer carrying the second layer.

  In one embodiment, the small diameter hole is formed to communicate with one of the pinholes, and in another embodiment, the small diameter hole is formed to communicate with a plurality of the pinholes. .

The pinhole has a hole diameter of 1 mm or less, and the metal thin plate is usually an aluminum plate having a thickness of 0.3 to 1 mm. The resin decorative film may have one or more functions of odor absorption, CO ₂ adsorption, antibacterial, and antifouling.

  In one embodiment, the sound-absorbing material layer is glass wool molded into a board shape, and in another embodiment, the sound-absorbing material layer is rock wool molded into a board shape.

  As described above, the present invention provides a first layer which is a resin decorative film capable of printing an arbitrary pattern or color pattern and has a pinhole transparently provided on the entire surface or in a wide range, and the pinhole communicates with the first layer. And a second layer, which is a thin metal plate formed by making a small-diameter hole larger in diameter than the pinhole corresponding to the penetration position of the pinhole, and typically the pinhole for providing sound absorption has a hole diameter. Since it is 1 mm or less and is not conspicuous, it has a good appearance and a sanitary surface state in which dust is not easily collected, and there is an effect that the surface rigidity is secured by the second metal thin plate.

  Furthermore, it has excellent sound absorbing performance by including a sound absorbing material layer as the third layer, and it is non-combustible by including a metal thin plate of the second layer and a sound absorbing material layer that is usually formed of nonflammable glass wool or rock wool. Because it becomes a sound-absorbing board with characteristics, it is used especially as a panel for interiors that need to be silenced, such as concert halls, public facilities, schools, hospitals, libraries, company meeting rooms, etc., or as a toilet booth or partition material There exists an effect used as a suitable thing.

It is a partial fracture perspective view of a 1st embodiment of a sound-absorbing panel concerning the present invention. It is a partial fracture perspective view of a 2nd embodiment of a sound-absorbing panel concerning the present invention. It is a top view which shows the various examples of the arrangement | positioning relationship of each hole formed in the sound-absorbing panel which concerns on this invention.

  Hereinafter, various modes for carrying out the present invention will be described with reference to the accompanying drawings. The sound-absorbing panel according to the present invention communicates with the pinhole 2 and the first layer, which is a resin-made decorative film 1 that can be printed with an arbitrary pattern or color pattern and has the pinhole 2 transparently provided on the entire surface or in a wide range. A second layer, which is a thin metal plate 3 in which a small-diameter hole 4 having the same diameter as or larger than that of the pinhole 2 to be formed is made to correspond to the penetration position of the pinhole 2, the resin decorative film 1 and the metal It consists of the 3rd layer which is the sound-absorbing material layer 5 which carries the thin plate 3.

Since the resin decorative film 1 is a surface layer, it is required to have a certain degree of aesthetics as well as being flame retardant. Therefore, the resin decorative film 1 is required to be capable of printing a variety of arbitrary patterns and color patterns such as a wood grain pattern. As this resin-made decorative film 1, for example, a gravure-printable vinyl chloride sheet, which is laminated with a film such as a fluorine film for surface protection and durability improvement, if necessary, is used. be able to. Moreover, as the resin-made decorative film 1, a film having one or a plurality of functions among odor absorption, CO ₂ adsorption, antibacterial, and antifouling can be used.

  The pinhole 2 pierced through the resin decorative film 1 has an inconspicuous size, that is, a small hole diameter of 1 mm or less, at regular intervals or randomly, and over the entire surface or a wide range of the resin decorative film 1. It is laid across. If the hole diameter is at this level, ventilation is possible when it is stretched on the wall or ceiling surface, but if it is a little away, it is almost visible regardless of the pattern or color pattern expression on the surface. (In the drawing, it is expressed prominently in order to clarify its existence). Therefore, the appearance of the resin decorative film 1 is not impaired due to the appearance after construction.

  As the metal thin plate 3 forming the second layer, an aluminum plate of 0.3 to 1 mm is usually used. If the thickness of the plate material is 0.3 mm or less, sufficient surface strength cannot be obtained, and if it is 1 mm or more, the weight increases and the small-diameter hole 4 described later is drilled (particularly the pinhole 2). And the same diameter) is not easy. A small-diameter hole 4 having the same diameter as or larger than that of the pinhole 2 communicating with the pinhole 2 is formed in the metal thin plate 3 so as to correspond to the penetration position of each pinhole 2.

  In the first embodiment shown in FIG. 1, the pinhole 2 and the small-diameter hole 4 have the same diameter, and are formed so as to correspond one by one. If the pinhole 2 and the small-diameter hole 4 have the same diameter, the resin-made decorative film 1 and the metal thin plate 3 are bonded together and then drilled from above to form the pinhole 2 and the small-diameter hole 4 once. Can be formed. Of course, it is good also as positioning and bonding together what was pierced separately. When the small-diameter hole 4 has a larger diameter than the pinhole 2, the latter method is used.

  In the second embodiment shown in FIG. 2, each small-diameter hole 4 is opened to a size that can include a plurality of pinholes 2 and communicates with the plurality of pinholes 2. For example, when the resin decorative film 1 in which pinholes 2 having a hole diameter of 1 mm are provided at intervals of 4 mm in length and width and the hole diameter of the small diameter holes 4 is 6 mm, four pinholes 2 are provided in each small diameter hole 4. It will fit one by one.

As the sound-absorbing material layer 5 forming the third layer, glass wool or rock wool formed into a board shape is preferably used and fixed to the back surface of the metal thin plate 3 by adhesion or the like. As the glass wool, it is preferable to use one sheet having a high density (for example, 96 kg / m ³ ) having a thickness of 25 to 50 mm or a plurality of layers depending on the construction site. Further, as the rock wool, it is preferable to use one having a thickness of 25 to 50 mm and a density of about 80 kg / m ³ , or a plurality of laminated ones depending on the construction site.

  In any of the above embodiments, since the metal thin plate 3 is disposed as the second layer under the first resin decorative film 1, an appropriate surface strength can be obtained as an interior panel. The sound-absorbing panel used in the above is of sufficient strength. Further, since room noise can be silenced by absorbing innumerable pinholes 2 through the small pinholes 2 and releasing them into the sound absorbing material layer 5 through the small-diameter holes 4, a sufficient sound absorbing and silencing effect can be obtained.

  The sound absorbing panel according to the present invention formed as described above is constructed in the same manner as a general panel as a general inner wall panel, in particular, as a ceiling panel. Since the resin decorative film 1 is provided with a number of pinholes 2 having a hole diameter of 1 mm or less and inconspicuous, the appearance of the pinholes 2 is not impaired.

  Moreover, since this resin decorative film 1 can express an arbitrary pattern, color pattern, etc., it is possible not only to prepare various things in advance and select them according to the use. Since it is possible to print a desired pattern or color pattern each time and use it, it is suitable for multi-product small lot construction.

  Furthermore, in the case of the sound-absorbing board according to the present invention, the pinhole 5 formed in the resin decorative film 1 as the surface layer has a hole diameter of 1 mm or less so that dust does not collect easily, and the flat surface is smooth. Easy to wipe off and hygienic. Further, the resin decorative film 1 is not only flame retardant per se, but also because it is integrated with the metal thin plate 3 and a sound absorbing material layer that is usually formed of nonflammable glass wool or rock wool. Further, the fire resistance is further improved. It also has excellent sound absorption performance through the pinhole 2, especially for concert halls, public facilities, schools, hospitals, libraries, company conference rooms, and other interior interior panels that need to be silenced, especially ceiling panels. It is suitable for.

In order to confirm the effectiveness (sound absorption rate) of the sound absorption panel according to the present invention, the Tokyo Metropolitan Industrial Technology Research Center was requested to perform a reverberation room method sound absorption rate measurement (1/3 octave band 18 frequency) test. The samples used for the test were a vinyl chloride sheet (resin decorative film 1) having a pinhole with a hole diameter of 1 mm, and an aluminum plate (metal thin plate 3) having a thickness of 0.5 mm with a small diameter hole having a hole diameter of 1 mm. And glass wool (sound absorbing material layer 5) having a density of 96 kg / m ³ and a thickness of 25 mm.

The measurement results are as shown in the following table and the graph of FIG.

  From the above test results, it was confirmed that the sound-absorbing board according to the present invention exhibits an excellent sound-absorbing effect particularly in the mid-high range of 500 Hz or higher.

  The sound absorbing panel according to the present invention may be disposed over the entire construction wall surface, or may be partially disposed such as only the intermediate portion, or the intermediate portion and the upper portion.

  Although the invention has been described in some detail in its most preferred embodiments, it will be appreciated that further embodiments can be made without departing from the spirit and scope of the invention. Accordingly, the invention is not limited to that particular embodiment, except as limited in the appended claims.

DESCRIPTION OF SYMBOLS 1 Plastic decorative film 2 Pinhole 3 Metal thin plate 4 Small-diameter hole 5 Sound-absorbing material layer

Claims (8)

  A first layer, which is a resin decorative film that can be printed with an arbitrary pattern or color pattern, and has a pinhole formed on the entire surface or in a wide range, and has the same diameter as the pinhole that communicates with the pinhole or that A second layer, which is a metal thin plate in which a smaller diameter hole having a larger diameter is made to correspond to the penetration position of the pinhole, and a third sound absorbing material layer that carries the first layer and the second layer. A sound absorbing panel comprising a layer. The sound absorbing panel according to claim 1, wherein the small diameter hole is formed so as to communicate with one of the pinholes.   The sound absorbing panel according to claim 1, wherein the small-diameter hole is formed so as to communicate with a plurality of the pinholes.   The sound absorbing panel according to any one of claims 1 to 3, wherein a diameter of the pinhole is 1 mm or less.   The sound absorbing panel according to any one of claims 1 to 4, wherein the metal thin plate is an aluminum plate having a thickness of 0.3 to 1 mm. The sound absorbing panel according to any one of claims 1 to 5, wherein the resin decorative film has one or more functions of odor absorption, CO ₂ adsorption, antibacterial, and antifouling.   The sound-absorbing panel according to any one of claims 1 to 6, wherein the sound-absorbing material layer is glass wool formed in a board shape.   The sound-absorbing panel according to any one of claims 1 to 6, wherein the sound-absorbing material layer is rock wool formed into a board shape.

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