JP6068848B2 - Sound insulation panel, sound insulation structure and soundproof room equipped with the same - Google Patents
Sound insulation panel, sound insulation structure and soundproof room equipped with the same Download PDFInfo
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本発明は、軽量であると共に防音機能及び換気性に優れている遮音パネル及びこれを備えた防音構造並びに防音室に関する。 The present invention relates to a sound insulation panel that is lightweight and excellent in sound insulation function and ventilation, a sound insulation structure including the sound insulation panel, and a sound insulation room.
従来、軽量化や剛性を高める素材として、いわゆるハニカムコアと呼ばれる複数の中空筒状構造体がパネル内部の充填材として広く利用されている（特許文献１及び特許文献２参照）。このハニカムコアは、パネルの構造強度（特に圧縮強度）の強化と軽量化とに寄与する構造体として広く知られている。
しかしながら、このハニカムコアを用いたハニカムパネルは、ハニカム構造自体が音の橋（サウンドブリッジ）となって振動を伝達するので、遮音効果を発揮し難いと考えられている。このため、従来の遮音パネルでは、板状材料やシート状材料を積層して重量を付加したり、パネル内部にグラスウールやロックウールなどの吸音材を充填し、遮音性能を高めている。
Conventionally, a plurality of hollow cylindrical structures called so-called honeycomb cores are widely used as fillers inside panels as materials for increasing weight and rigidity (see Patent Document 1 and Patent Document 2). This honeycomb core is widely known as a structure that contributes to strengthening the structural strength (particularly, compressive strength) of the panel and reducing the weight.
However, in the honeycomb panel using the honeycomb core, the honeycomb structure itself becomes a sound bridge (sound bridge) and transmits vibrations, so that it is considered difficult to exert a sound insulation effect. For this reason, in a conventional sound insulation panel, a plate-like material or a sheet-like material is laminated to add weight, or a sound absorbing material such as glass wool or rock wool is filled in the panel to enhance sound insulation performance.
また、一重板（単板又は積層板）のパネルの場合では、重量を２倍にすると遮音性能がおよそ５ｄＢ上昇するという質量則に規制されるので、遮音性能を高めるためには板を重くせざるを得ない。例えば、３０ｄＢ（ａｔ５００Ｈｚ）の遮音性を有するパネルの重量が２０ｋｇ／ｍ２とすれば、このパネルの遮音性能を４０ｄＢ（ａｔ５００Ｈｚ）にするためには、パネルの重量を８０ｋｇ／ｍ２にする必要がある。 Also, in the case of a single plate (single plate or laminated plate) panel, if the weight is doubled, it is regulated by the mass rule that the sound insulation performance increases by about 5 dB. Therefore, to increase the sound insulation performance, make the plate heavy. I must. For example, if the weight of a panel having a sound insulation property of 30 dB (at 500 Hz) is 20 kg / m 2 , the panel weight needs to be 80 kg / m 2 in order to make the sound insulation performance of this panel 40 dB (at 500 Hz). There is.
このように一重板パネルでは重量が嵩むため、軽量化のためにハニカム構造を用いた二重パネルが提案されている。例えば、特許文献３では、表面材と裏面材との間に断面略ハニカム状の吸音材層を二重に有し、その間にフェルト製シート等の複数の吸音材を貼り合わせたり挿入するなどして、軽量で遮音性能を高める工夫がなされている防音壁用部材が提案されている。 As described above, since the single plate panel is heavy, a double panel using a honeycomb structure has been proposed to reduce the weight. For example, in Patent Document 3, a sound absorbing material layer having a substantially honeycomb cross section is provided between a front surface material and a back surface material, and a plurality of sound absorbing materials such as felt sheets are bonded or inserted therebetween. In addition, a sound barrier member has been proposed that is lightweight and has been devised to enhance sound insulation performance.
上記従来の技術において、以下の課題が残されている。
すなわち、従来の遮音パネルでは、上述したように遮音性能を高めるために吸音材を内部に充填しているが、そのために全体の重量が増大し、やはり軽量化が困難になってしまうという不都合があった。また、吸音材として代表的なグラスウールやロックウール等の繊維状材料を用いる場合、施工や解体時などの作業時において人体に影響のある粉塵が発生するおそれがあることから、取り扱いに特に注意が必要になるという不都合もあった。
一方、防音が必要な部屋に遮音パネルを設置する場合、換気口等の開口部から外部への音漏れを防ぐために、換気口等に防音フード等の消音機能を有する設備を取り付ける必要があり、設備コストが増大するという不都合もあった。
In the above conventional technique, the following problems remain.
That is, in the conventional sound insulation panel, as described above, the sound absorbing material is filled inside in order to improve the sound insulation performance. However, this increases the overall weight, which also makes it difficult to reduce the weight. there were. In addition, when using a fibrous material such as typical glass wool or rock wool as the sound absorbing material, there is a risk of generating dust that may affect the human body during work such as construction or dismantling, so handle with particular care. There was also the inconvenience that it was necessary.
On the other hand, when installing a sound insulation panel in a room that requires sound insulation, in order to prevent sound leakage from the opening of the ventilation port etc. to the outside, it is necessary to install equipment with a sound deadening function, such as a sound insulation hood, etc. There was also a disadvantage that the equipment cost increased.
本発明は、上記従来の問題に鑑みてなされたもので、軽量であると共に防音機能及び換気性に優れている遮音パネル及びこれを備えた防音構造並びに防音室を提供することを目的とする。 The present invention has been made in view of the above-described conventional problems, and an object thereof is to provide a sound insulation panel that is lightweight and has an excellent soundproof function and ventilation, a soundproof structure including the soundproof structure, and a soundproof room.
本発明は、前記課題を解決するために以下の構成を採用した。すなわち、第１の発明に係る遮音パネルは、互いに間隔を空けて配置され中空層を介して対向する２つのパネル部材と、２つの前記パネル部材を支持する枠部材とを備え、前記パネル部材が、外面材と、前記中空層側の内面材と、前記外面材と前記内面材とで内部に支持された複数の中空筒状構造体とを有したハニカムパネルであり、前記外面材が、前記内面材よりも剛性の高い非通気性の板材で構成され、前記内面材が、内外に通気可能なシート状又は板状の通気性材で構成されていることを特徴とする。 The present invention employs the following configuration in order to solve the above problems. That is, the sound insulation panel according to the first invention includes two panel members that are spaced apart from each other and face each other via a hollow layer, and a frame member that supports the two panel members. A honeycomb panel having an outer surface material, an inner surface material on the hollow layer side, and a plurality of hollow cylindrical structures supported inside by the outer surface material and the inner surface material, wherein the outer surface material is It is comprised by the non-breathable board | plate material whose rigidity is higher than an inner surface material, The said inner surface material is comprised by the sheet-like or plate-like breathable material which can ventilate inside and outside, It is characterized by the above-mentioned.
この遮音パネルでは、外面材が、内面材よりも剛性の高い非通気性の板材で構成され、内面材が、内外に通気可能なシート状又は板状の通気性材で構成されているので、剛性の高い外面材により音を反射して内部への侵入を抑制し、通気性材の内面材により内部に侵入した音及び中空層を移動する音を吸音すると共に中空層を介して換気を行うことができる。また、二重のハニカムパネル（パネル部材）で軽量かつ高剛性が得られると共に、これらの間に中空層を設けることで、パネル部材間の遮音性能と換気機能とを併せ持つことが可能になる。さらに、通気性のある内面材を介して空気がハニカムコアの中空筒状構造体内に入り、中空筒状構造体自体に空気の温度が伝わることで、パネル全体の熱伝導性が高くなり、床暖房等に用いるパネルとしても適している。 In this sound insulation panel, the outer surface material is composed of a non-breathable plate material having higher rigidity than the inner surface material, and the inner surface material is composed of a sheet-like or plate-like breathable material that can be ventilated inside and outside. Sound is reflected by the highly rigid outer surface material to prevent intrusion into the interior, and the sound penetrated into the inside by the inner surface material of the breathable material and the sound moving through the hollow layer are absorbed and ventilation is performed through the hollow layer. be able to. Further, the double honeycomb panel (panel member) is lightweight and highly rigid, and by providing a hollow layer between them, it is possible to have both sound insulation performance and ventilation function between the panel members. Furthermore, air enters the hollow cylindrical structure of the honeycomb core through the breathable inner surface material, and the temperature of the air is transmitted to the hollow cylindrical structure itself, so that the thermal conductivity of the entire panel is increased, and the floor It is also suitable as a panel used for heating and the like.
第２の発明に係る遮音パネルは、第１の発明において、前記中空筒状構造体が、紙製であり、前記内面材が、不織布であることを特徴とする。
すなわち、この遮音パネルでは、中空筒状構造体が紙製であり、内面材が不織布であるので、低コストかつクリーンな素材で高い遮音・吸音効果及び換気機能を得ることができる。
The sound insulation panel according to a second invention is characterized in that, in the first invention, the hollow cylindrical structure is made of paper, and the inner surface material is a nonwoven fabric.
That is, in this sound insulation panel, since the hollow cylindrical structure is made of paper and the inner surface material is a nonwoven fabric, a high sound insulation / sound absorption effect and ventilation function can be obtained with a low-cost and clean material.
第３の発明に係る防音構造は、複数の第１又は第２の発明の遮音パネルが並べられて構成された壁、天井又は床を有し、前記枠部材に、互いに隣接する前記遮音パネルの前記中空層に連通する内側流通孔が形成されていることを特徴とする。
すなわち、この防音構造では、複数の第１又は第２の発明の遮音パネルが並べられて構成された壁、天井又は床を有し、枠部材に、互いに隣接する遮音パネルの中空層に連通する内側流通孔が形成されているので、内側流通孔を介して中空層内の空気がパネル間で流通可能になり、遮音パネルが軽量で施工性に優れる上、クリーンな消音換気システムとしても機能する。
A soundproof structure according to a third aspect of the present invention has a wall, a ceiling, or a floor formed by arranging a plurality of soundproofing panels according to the first or second aspect of the present invention, and the frame members are adjacent to each other. Inner flow holes communicating with the hollow layer are formed.
That is, this soundproof structure has a wall, ceiling, or floor in which a plurality of sound insulation panels according to the first or second invention are arranged, and communicates with the hollow layers of the sound insulation panels adjacent to each other in the frame member. Since the inner circulation hole is formed, the air in the hollow layer can be circulated between the panels through the inner circulation hole, the sound insulation panel is lightweight and excellent in workability, and also functions as a clean silence ventilation system .
第４の発明の防音室は、第３の発明の防音構造を備え、複数の前記遮音パネルのうち、室内と前記中空層とを接続する室内側通気口が形成されているものと、室外と前記中空層とを接続する室外側通気口が形成されているものとを有し、前記室外側通気口の近傍に、前記中空層内の空気を吸引して室外に排出可能又は室外の空気を前記中空層内に給気可能なファンが設けられていることを特徴とする。
この防音室では、複数の遮音パネルのうち、室内と中空層とを接続する室内側通気口が形成されている遮音パネルと、室外と中空層とを接続する室外側通気口が形成されている遮音パネルとを有し、室外側通気口の近傍に、中空層内の空気を吸引して室外に排出可能又は室外の空気を中空層内に給気可能なファンが設けられているので、室内の空気を排出可能又は室外の空気を室内に給気可能である。すなわち、室内側通気口から室内の空気を連通された中空層内を介してファンにより吸引して室外に排出する、又は室外側通気口から室外の空気を連通された中空層内を介してファンにより吸引して室内に給気することができる。また、中空層を移動する音が内面材で吸音されることから、室外側通気口から外部への音漏れを抑制でき、室外側通気口に消音機能を設ける必要がない。また、室内の換気効率が高まる位置に給気口と排気口とを設けることにより、防音室内で発生する熱による温度変化を制御して、快適な室内空間を実現することができる。
A soundproof room according to a fourth invention includes the soundproof structure according to the third invention, wherein a plurality of the sound insulation panels are formed with an indoor side air vent connecting the room and the hollow layer, An outdoor vent that connects to the hollow layer is formed, and the air in the hollow layer can be sucked and discharged to the outside in the vicinity of the outdoor vent or the outdoor air can be discharged A fan capable of supplying air is provided in the hollow layer.
In this soundproof room, among the plurality of sound insulation panels, a sound insulation panel in which an indoor side air vent that connects the room and the hollow layer is formed, and an outdoor side air vent that connects the outdoor and the hollow layer are formed. And a sound insulation panel, and a fan is provided near the outdoor vent so that air in the hollow layer can be sucked out and discharged outside the room, or outdoor air can be supplied into the hollow layer. The air can be discharged or the outdoor air can be supplied indoors. That is, the indoor air is sucked by the fan through the hollow layer communicated from the indoor side vent hole and exhausted to the outside of the room, or the outdoor air is communicated from the outdoor vent hole through the hollow layer communicated to the fan. The air can be sucked and supplied into the room. In addition, since the sound moving through the hollow layer is absorbed by the inner surface material, sound leakage from the outdoor vent to the outside can be suppressed, and it is not necessary to provide a silencing function in the outdoor vent. In addition, by providing the air supply port and the exhaust port at a position where the ventilation efficiency of the room is increased, a temperature change due to heat generated in the soundproof room can be controlled to realize a comfortable indoor space.
本発明によれば、以下の効果を奏する。
すなわち、本発明の遮音パネルによれば、外面材が、内面材よりも剛性の高い非通気性の板材で構成され、内面材が、内外に通気可能なシート状又は板状の通気性材で構成されているので、軽量であると共に防音機能及び換気性に優れている。
したがって、この遮音パネルを用いた防音構造及び防音室によれば、軽量で施工性に優れる上、クリーンな消音換気システムとしても機能することができる。
The present invention has the following effects.
That is, according to the sound insulation panel of the present invention, the outer surface material is constituted by a non-breathable plate material having rigidity higher than that of the inner surface material, and the inner surface material is a sheet-like or plate-like breathable material capable of breathing in and out. Since it is configured, it is lightweight and has excellent soundproofing function and ventilation.
Therefore, according to the soundproof structure and soundproof room using this sound insulation panel, it is lightweight and excellent in workability, and can also function as a clean silencer ventilation system.
以下、本発明における遮音パネル及びこれを備えた防音構造並びに防音室の一実施形態を、図１から図７に基づいて説明する。 Hereinafter, a sound insulation panel according to the present invention, a soundproof structure including the sound insulation panel, and a soundproof room will be described with reference to FIGS. 1 to 7.
本実施形態における遮音パネル１は、図１に示すように、互いに間隔を空けて配置され中空層２を介して対向する２つのパネル部材３と、２つのパネル部材３を支持する枠部材４とを備えている。なお、２つのパネル部材３の間であって枠部材４側には、スペーサ５が配されている。
上記パネル部材３は、外面材６と、中空層２側の内面材７と、外面材６と内面材７とで内部に支持された複数の中空筒状構造体８とを有したハニカムパネルである。
As shown in FIG. 1, the sound insulation panel 1 according to the present embodiment includes two panel members 3 that are spaced apart from each other and face each other with a hollow layer 2 therebetween, and a frame member 4 that supports the two panel members 3. It has. A spacer 5 is disposed between the two panel members 3 and on the frame member 4 side.
The panel member 3 is a honeycomb panel having an outer surface material 6, an inner surface material 7 on the hollow layer 2 side, and a plurality of hollow cylindrical structures 8 supported inside by the outer surface material 6 and the inner surface material 7. is there.
上記外面材６は、内面材７よりも剛性の高い非通気性の板材で構成され、上記内面材７は、内外に通気可能で外面材６よりも吸音性の高いシート状又は板状の通気性材で構成されている。本実施形態では、中空筒状構造体８が、紙製ハニカムコアであり、外面材６が、合板（いわゆるベニヤ板等の木質ボード）であり、内面材７が、ガラス不織布である。また、枠部材４は、木材やアルミ材等で形成されている。 The outer surface material 6 is composed of a non-breathable plate material having rigidity higher than that of the inner surface material 7, and the inner surface material 7 can ventilate in and out and has a sound absorption property higher than that of the outer surface material 6. It is made of natural materials. In the present embodiment, the hollow tubular structure 8 is a paper honeycomb core, the outer surface material 6 is a plywood (a so-called veneered wooden board), and the inner surface material 7 is a glass nonwoven fabric. The frame member 4 is made of wood, aluminum, or the like.
また、この遮音パネル１を用いた防音構造は、複数の遮音パネル１が並べられて構成された壁、天井又は床を有したものであり、例えば、図２から図７に示す防音室１０は、床を除いた四方の壁と天井に遮音パネル１を並べて設置した防音構造を備えている。
本実施形態の防音室１０は、複数の遮音パネル１のうち、室内と中空層２とを接続する室内側通気口１１が形成されているものと、室外と中空層２とを接続する室外側通気口１２が形成されているものとを有している。
Moreover, the soundproof structure using the sound insulation panel 1 has a wall, a ceiling, or a floor formed by arranging a plurality of sound insulation panels 1. For example, the soundproof room 10 shown in FIGS. The sound insulation panel 1 is arranged side by side on the four walls and ceiling excluding the floor.
The soundproof room 10 of the present embodiment includes a plurality of sound insulation panels 1 in which an indoor side air vent 11 that connects the room and the hollow layer 2 is formed, and an outdoor side that connects the outdoor and the hollow layer 2. It has the thing in which the vent hole 12 is formed.
上記室内側通気口１１は、左右の壁に設置された遮音パネル１の下端部に配されて内側のパネル部材３を貫通して設けられている。
上記室外側通気口１２は、天井に設置された遮音パネル１の中央に配されて外側のパネル部材３を貫通して設けられている換気口である。
The indoor air vent 11 is provided at the lower end of the sound insulation panel 1 installed on the left and right walls, and is provided through the inner panel member 3.
The outdoor vent 12 is a vent provided in the center of the sound insulation panel 1 installed on the ceiling and provided through the outer panel member 3.
また、室外側通気口１２の近傍には、中空層２内の空気を吸引して室外に排出可能又は室外の空気を中空層２内に給気可能なファン１３が設けられている。このファン１３は室外側通気口１２の上部に設置されている換気扇の小型軸流ファンである。
上記遮音パネル１の枠部材４には、互いに隣接する遮音パネル１の中空層２に連通する内側流通孔４ａが形成されている。この内側流通孔４ａは、枠部材４の剛性を損なわない程度の形状及び個数で形成されている。
In addition, a fan 13 is provided in the vicinity of the outdoor vent 12 so that air in the hollow layer 2 can be sucked and discharged outside the room, or outdoor air can be supplied into the hollow layer 2. This fan 13 is a small axial fan of a ventilation fan installed at the upper part of the outdoor vent 12.
The frame member 4 of the sound insulation panel 1 is formed with an inner flow hole 4a communicating with the hollow layer 2 of the sound insulation panel 1 adjacent to each other. The inner flow holes 4 a are formed in a shape and number that do not impair the rigidity of the frame member 4.
また、天井に設置した遮音パネル１の内側には、多数の貫通孔が形成された有孔天井板１４が、スペーサ２５を介して遮音パネル１から離間させて設置されている。
さらに、この防音室１０では、背面側の壁に設置された遮音パネル１の一つに室外の空気が流入可能に外側のパネル部材３に貫通した室外吸気口１５が形成されている。また、背面側の遮音パネル１における内側のパネル部材３には、中空層２まで貫通した背面換気開口部１６が形成されている。
In addition, a perforated ceiling plate 14 in which a large number of through holes are formed is installed inside the sound insulation panel 1 installed on the ceiling so as to be separated from the sound insulation panel 1 via a spacer 25.
Furthermore, in the soundproof room 10, an outdoor air inlet 15 penetrating the outer panel member 3 is formed in one of the sound insulation panels 1 installed on the wall on the back side so that outdoor air can flow. Further, a back ventilation opening 16 penetrating to the hollow layer 2 is formed in the inner panel member 3 of the sound insulation panel 1 on the back side.
上記室外吸気口１５は、背面側の壁の下部に設けられていると共に、背面換気開口部１６は、背面側の壁の上部に設けられている。したがって、室外吸気口１５は、中空層２と背面換気開口部１６とを介して有孔天井板１４と遮音パネル１との間の通気空間１４ａに連結されている。 The outdoor intake port 15 is provided in the lower part of the rear wall, and the rear ventilation opening 16 is provided in the upper part of the rear wall. Therefore, the outdoor air inlet 15 is connected to the ventilation space 14 a between the perforated ceiling plate 14 and the sound insulation panel 1 through the hollow layer 2 and the back ventilation opening 16.
このように、この防音室１０では、天井の室外側通気口１２と左右の壁の室内側通気口１１とを、中空層２と内側流通孔４ａとを介して連結して給気系又は排気系とし、天井の有孔天井板１４と背面側の壁の室外吸気口１５とを、中空層２及び通気空間１４ａを介して連結して排気系又は給気系として、全体として換気システムを構成している。なお、図３において、矢印は強制排気時の空気の流れを示している。
なお、防音室１０の正面には、二重ガラスののぞき窓１７が設けられた扉１８が設置されている。
As described above, in the soundproof room 10, the ceiling outdoor air vent 12 and the left and right indoor air vents 11 are connected via the hollow layer 2 and the inner flow hole 4a to supply or exhaust air. The ventilation system is configured as a whole by connecting the perforated ceiling plate 14 of the ceiling and the outdoor air inlet 15 of the wall on the back side through the hollow layer 2 and the ventilation space 14a as an exhaust system or an air supply system. doing. In FIG. 3, arrows indicate the air flow during forced exhaust.
In addition, a door 18 provided with a double glass viewing window 17 is installed in front of the soundproof room 10.
このように本実施形態の遮音パネル１では、外面材６が、内面材７よりも剛性の高い非通気性の板材で構成され、内面材７が、内外に通気可能なシート状又は板状の通気性材で構成されているので、剛性の高い外面材６により音を反射して内部への侵入を抑制し、通気性材の内面材７により内部に侵入した音及び中空層２を移動する音を吸音すると共に中空層２を介して換気を行うことができる。また、二重のハニカムパネル（パネル部材３）で軽量かつ高剛性が得られると共に、これらの間に中空層２を設けることで、パネル部材３間の遮音性能と換気機能とを併せ持つことが可能になる。 As described above, in the sound insulation panel 1 of the present embodiment, the outer surface material 6 is formed of a non-breathable plate material having higher rigidity than the inner surface material 7, and the inner surface material 7 is a sheet-like or plate-like material that can be ventilated inside and outside. Since it is made of a breathable material, the sound is reflected by the highly rigid outer surface material 6 to suppress intrusion into the inside, and the sound that has entered the inside by the inner surface material 7 of the breathable material and the hollow layer 2 are moved. Sound can be absorbed and ventilation can be performed through the hollow layer 2. In addition, the double honeycomb panel (panel member 3) provides light weight and high rigidity, and by providing the hollow layer 2 therebetween, it is possible to have both sound insulation performance and ventilation function between the panel members 3. become.
通常、パネル表面の外面板に到達した音は、外面板により一部が反射され、一部がパネル内部で消費され、残りがパネルを透過する。したがって、透過する音のエネルギーを小さくして遮音性能を大きくするためには、音の反射率を高め、パネル内部での音の消費を大きくする必要がある。音は、表面の外面板を振動させることによってパネル内部に伝わるが、本実施形態の遮音パネル１では、外面材６の剛性が高いために振動し難く、反射率が高くなってパネル内部に音が侵入し難い。 Usually, a part of the sound reaching the outer plate on the panel surface is reflected by the outer plate, a part is consumed inside the panel, and the rest is transmitted through the panel. Therefore, in order to reduce the energy of transmitted sound and increase the sound insulation performance, it is necessary to increase the sound reflectivity and increase the consumption of sound inside the panel. Sound is transmitted to the inside of the panel by vibrating the outer surface plate. However, in the sound insulation panel 1 of the present embodiment, the outer surface material 6 has high rigidity, so that it is difficult to vibrate, and the reflectance becomes high and the sound is generated inside the panel. Is hard to penetrate.
また、パネル表面の外面材６の内側に設けた中空筒状構造体８による無数のセル構造が外面材６の振動を規制することにより剛性がより高まり、音の反射率がさらに大きくなって遮音性能が向上する。しかしながら、パネル内部に侵入した音は、無数のセル構造が音の橋として他方の面に音を伝えて遮音性能を損ねるが、本遮音パネル１では、中空層２が介在しているため、一方のパネル部材３と他方のパネル部材３とが直接接触せず、ハニカムコアである中空筒状構造体８からの音の伝搬が極力低減される。 In addition, the infinite number of cell structures formed by the hollow cylindrical structures 8 provided inside the outer surface material 6 on the panel surface restricts the vibration of the outer surface material 6, thereby increasing the rigidity and further increasing the sound reflectivity. Performance is improved. However, the sound that has entered the panel has a myriad of cell structures that transmit sound to the other surface as a sound bridge and impair the sound insulation performance. However, in this sound insulation panel 1, since the hollow layer 2 is interposed, The panel member 3 and the other panel member 3 are not in direct contact with each other, and sound propagation from the hollow cylindrical structure 8 that is a honeycomb core is reduced as much as possible.
さらに、パネル内部の吸音による音の消費について説明すると、ハニカムコアである中空筒状構造体８自体又はこれに外面材６を貼った状態では吸音効果がほとんど得られないが、通気性材の内面材７を内側に貼ると音が内面材７に吸音される。その吸音率は、通気性材の粘性抵抗や開口率と、ハニカムコア（中空筒状構造体８）のセルサイズやセル高さによって異なる。言い換えれば、通気性材（内面材７）及びハニカムコア（中空筒状構造体８）の選定により、任意の吸音率に設定可能である。 Furthermore, the consumption of sound due to sound absorption inside the panel will be described. Although the sound absorption effect is hardly obtained in the state where the hollow cylindrical structure 8 itself which is a honeycomb core or the outer surface material 6 is pasted on this, the inner surface of the breathable material. When the material 7 is pasted inside, the sound is absorbed by the inner surface material 7. The sound absorption coefficient varies depending on the viscosity resistance and aperture ratio of the air-permeable material and the cell size and cell height of the honeycomb core (hollow cylindrical structure 8). In other words, an arbitrary sound absorption coefficient can be set by selecting a breathable material (inner surface material 7) and a honeycomb core (hollow cylindrical structure 8).
なお、中空筒状構造体８及び内面材７の吸音機構は、グラスウールやロックウールなどの多孔質材料の吸音機構、板状材料の吸音機構、又は有孔板等のヘルムフォルツ吸音機構などの単一な吸音機構ではなく、それらの総合体若しくはセル内部で音の進行が規制される効果によるものと考えられる。
この中空筒状構造体８及び内面材７による吸音効果により、パネル内部に侵入した音が吸音されることでパネル内部の音圧が低下し、パネル内部の遮音性能がさらに向上する。
The sound absorbing mechanism of the hollow cylindrical structure 8 and the inner surface material 7 is a simple sound absorbing mechanism such as a porous material such as glass wool or rock wool, a sound absorbing mechanism of a plate material, or a Helmfortz sound absorbing mechanism such as a perforated plate. It is thought that this is not due to a single sound absorbing mechanism, but due to the effect of restricting the progress of the sound inside these integrated bodies or cells.
Due to the sound absorption effect of the hollow cylindrical structure 8 and the inner surface material 7, the sound pressure inside the panel is absorbed by the sound entering the panel, and the sound insulation performance inside the panel is further improved.
また、一対のパネル部材３間の中空層２内を移動する音は、移動距離に応じて内面材７に吸音されるため、この遮音パネル１は、換気のための消音ダクトとしても活用可能である。
さらに、通気性のある内面材７を介して空気がハニカムコアの中空筒状構造体８内に入り、中空筒状構造体８自体に空気の温度が伝わることで、パネル全体の熱伝導性が高くなり、床暖房等に用いるパネルとしても適している。
Moreover, since the sound that moves in the hollow layer 2 between the pair of panel members 3 is absorbed by the inner surface material 7 in accordance with the moving distance, the sound insulation panel 1 can be used as a silencer duct for ventilation. is there.
Furthermore, the air enters the hollow cylindrical structure 8 of the honeycomb core through the breathable inner surface material 7, and the temperature of the air is transmitted to the hollow cylindrical structure 8 itself, so that the thermal conductivity of the entire panel is improved. It becomes high and is suitable as a panel used for floor heating.
なお、遮音パネル１の遮音性は、ハニカムコア（中空筒状構造体８）のセルサイズやセル高さを変化させることで任意に調整可能である。
このように、本実施形態の遮音パネル１では、上記の作用により、軽量なハニカム構造を活用しつつ高い遮音性能と換気機能とを兼ね備えることができる。
また、この遮音パネル１では、中空筒状構造体８が紙製であり、内面材７が不織布であるので、低コストかつクリーンな素材で高い遮音・吸音効果及び換気機能を得ることができる。
The sound insulation property of the sound insulation panel 1 can be arbitrarily adjusted by changing the cell size and cell height of the honeycomb core (hollow cylindrical structure 8).
Thus, the sound insulation panel 1 of the present embodiment can have both high sound insulation performance and a ventilation function while utilizing a lightweight honeycomb structure due to the above-described action.
Moreover, in this sound insulation panel 1, since the hollow cylindrical structure 8 is made of paper and the inner surface material 7 is a non-woven fabric, a high sound insulation / sound absorption effect and ventilation function can be obtained with a low-cost and clean material.
さらに、上記遮音パネル１で構成された防音構造を有する防音室１０では、複数の遮音パネル１のうち、室内と中空層２とを接続する室内側通気口１１が形成されている遮音パネル１と、室外と中空層２とを接続する室外側通気口１２が形成されている遮音パネル１とを有し、室外側通気口１２の近傍に、中空層２内の空気を吸引して室外に排出可能又は室外の空気を中空層２内に給気可能なファン１３が設けられているので、室内の空気を排出可能又は室外の空気を室内に給気可能である。 Furthermore, in the soundproof room 10 having the soundproof structure constituted by the soundproof panel 1, the soundproof panel 1 in which the indoor side air vent 11 that connects the room and the hollow layer 2 is formed among the plurality of soundproof panels 1. And a sound insulation panel 1 in which an outdoor vent 12 for connecting the outdoor and the hollow layer 2 is formed. In the vicinity of the outdoor vent 12, the air in the hollow layer 2 is sucked and discharged to the outside. Since the fan 13 capable of supplying outdoor air into the hollow layer 2 is provided, indoor air can be discharged or outdoor air can be supplied indoors.
すなわち、室内側通気口１１から室内の空気を連通された中空層２内を介してファン１３により吸引して室外に排出する、又は室外側通気口１２から室外の空気を連通された中空層２内を介してファン１３により吸引して室内に給気することができる。また、中空層２を移動する音が内面材７で吸音されることから、室外側通気口１２から外部への音漏れを抑制でき、室外側通気口１２に消音機能を設ける必要がない。 That is, the hollow layer 2 in which indoor air is sucked by the fan 13 through the hollow layer 2 communicated from the indoor vent 11 and discharged to the outside, or outdoor air is communicated from the outdoor vent 12. The air can be supplied to the room by being sucked by the fan 13 through the inside. Moreover, since the sound that moves through the hollow layer 2 is absorbed by the inner surface material 7, sound leakage from the outdoor vent 12 to the outside can be suppressed, and it is not necessary to provide a silencing function in the outdoor vent 12.
したがって、この防音室１０では、軽量で施工性に優れる上、繊維や粉塵粒子が発生しないクリーンな消音換気システムとしても機能するため、エアコン等の空調機器を使用しなくても、機密性の高い防音室１０内で発生する熱による温度変化を制御して快適な室内空間を実現することができる。 Therefore, the soundproof room 10 is lightweight and excellent in workability, and also functions as a clean silencer ventilation system that does not generate fibers or dust particles. Therefore, it is highly confidential without using air conditioning equipment such as an air conditioner. A comfortable indoor space can be realized by controlling a temperature change due to heat generated in the soundproof room 10.
＜第１実施例＞
次に、上記本実施形態の遮音パネルについて、実際に音響透過損失測定器を用いて音響透過損失測定を行った結果を、図８に示す。
なお、この試験を行った遮音パネル（第１実施例）は、中空筒状構造体として、高さ１５ｍｍ、セルサイズ（中空筒状構造体の筒サイズ）１２．７ｍｍの紙製ハニカムコアを用い、その表裏面に、外面板として厚さ４ｍｍの合板と、内面板としてガラス不織布とを接着した２つのパネル部材を用いた。また、２つのパネル部材は、２０ｍｍの中空層を介して周囲を厚さ５０ｍｍの枠材で囲んで一体化した。したがって、遮音パネル全体の厚さは、５８ｍｍである。なお、全体寸法は、４５０×４５０ｍｍである。
<First embodiment>
Next, with respect to the sound insulation panel of the present embodiment, the result of actually performing sound transmission loss measurement using a sound transmission loss measuring device is shown in FIG.
The sound insulation panel (first example) subjected to this test uses a paper honeycomb core having a height of 15 mm and a cell size (cylinder size of the hollow cylindrical structure) of 12.7 mm as the hollow cylindrical structure. On the front and back surfaces, two panel members obtained by bonding a 4 mm thick plywood as an outer surface plate and a glass nonwoven fabric as an inner surface plate were used. Further, the two panel members were integrated by surrounding the periphery with a frame material having a thickness of 50 mm through a 20 mm hollow layer. Therefore, the total thickness of the sound insulation panel is 58 mm. The overall dimension is 450 × 450 mm.
また、比較例として、上記中空筒状構造体の両面に表面材（合板）を接着しただけで構成されたパネルについても同様に測定を行った。その測定結果も併せて図８に示す（図中、「表面材と中空層のみのパネル」と表記）。また、パネル重量から求めた質量則の音響透過損失についても併せて図８に示す（図中、「質量則からの計算値」と表記）。
これらの結果からわかるように、比較例や質量則からの計算値に比べて、本発明の第１実施例（図中、「図１のパネル」と表記）は、軽量で遮音性能の高いパネルであることがわかる。
In addition, as a comparative example, the same measurement was performed on a panel configured by simply attaching a surface material (plywood) to both surfaces of the hollow cylindrical structure. The measurement results are also shown in FIG. 8 (denoted as “panel with only surface material and hollow layer” in the figure). Further, the sound transmission loss of the mass rule obtained from the panel weight is also shown in FIG. 8 (indicated as “calculated value from the mass rule” in the figure).
As can be seen from these results, the first embodiment of the present invention (denoted as “panel of FIG. 1” in the figure) is lighter and has a higher sound insulation performance than the calculated values from the comparative example and the mass law. It can be seen that it is.
＜第２実施例＞
次に、消音量を測定するために、第２実施例として、図９に示すように、遮音パネル１を用いた防音構造を作製した。この防音構造は、並べて設置した遮音パネル１の上下木口（枠部材４）にそれぞれ換気用開口部２１を設けたものである。これら換気用開口部２１は、中空層２に連通している。消音量測定は、一方の換気用開口部２１にスピーカー２２からノイズを発生させると共に、上下の換気用開口部２１において音圧レベルをマイク２３で測定して差（音圧レベル差）を求め、これを消音量とした試験を行った。その際の消音量測定の結果を図１０に示す。
<Second embodiment>
Next, in order to measure the noise reduction volume, as shown in FIG. 9, a soundproof structure using the sound insulation panel 1 was produced as a second example. In this soundproof structure, ventilation openings 21 are provided at the upper and lower ends (frame member 4) of the sound insulation panel 1 installed side by side. These ventilation openings 21 communicate with the hollow layer 2. In the silence volume measurement, noise is generated from the speaker 22 in one ventilation opening 21 and the sound pressure level is measured by the microphone 23 in the upper and lower ventilation openings 21 to obtain a difference (sound pressure level difference). A test was conducted with this volume turned off. FIG. 10 shows the result of the muffled sound volume measurement at that time.
なお、音の回り込みを防止するために、遮音パネル１の外周を、１２．５ｍｍ厚の石膏ボード２４で覆って測定を行った。また、上下の換気用開口部２１の距離は２ｍとした。さらに、換気用開口部２１のサイズは、１５×２００ｍｍとした。
この測定の結果からわかるように、良好な消音量が得られている。
In order to prevent the sound from wrapping around, the outer periphery of the sound insulation panel 1 was covered with a gypsum board 24 having a thickness of 12.5 mm for measurement. The distance between the upper and lower ventilation openings 21 was 2 m. Further, the size of the ventilation opening 21 was set to 15 × 200 mm.
As can be seen from the result of this measurement, a good sound reduction is obtained.
＜第３実施例＞
次に、第３実施例として、上記本実施形態の防音室を用いて、実際に遮音性能（室内外音圧レベル差）と防音室内の温度上昇とについて測定した結果を、図１１及び図１２に示す。
なお、防音室のサイズは、外形が、横６９０ｍｍ×縦５５５ｍｍ×奥行き５４３ｍｍであり、室内高４５０ｍｍとした。また、室内側通気口は、床面から３５ｍｍの高さで、１５０×２０ｍｍの開口としたと共に、室外吸気口は、床面から３５ｍｍの高さで、８０×３０ｍｍの開口とした。さらに、有孔天井板は、厚さ４ｍｍで、直径８ｍｍの貫通孔が１６個形成されたものを用いた。また、ファンは、直径８０ｍｍの小径軸流ファンを用いた。
<Third embodiment>
Next, as a third example, using the soundproof room of the present embodiment, the results of actually measuring the sound insulation performance (indoor / outdoor sound pressure level difference) and the temperature rise in the soundproof room are shown in FIGS. Shown in
The size of the soundproof room was 690 mm wide, 555 mm long, 543 mm deep, and the room height was 450 mm. In addition, the indoor side vent was set at a height of 35 mm from the floor and an opening of 150 × 20 mm, and the outdoor intake port was set at an height of 35 mm from the floor and an opening of 80 × 30 mm. Further, the perforated ceiling board was 4 mm thick and 16 through-holes having a diameter of 8 mm were formed. The fan used was a small diameter axial flow fan with a diameter of 80 mm.
換気効率については、室内中央に高さ２０ｃｍの位置に設置した４０Ｗの白熱灯を点灯し、ファンをＯＮ、ＯＦＦした際の上昇温度を測定して判定した。また、白熱灯は、輻射熱の影響を緩和するために黒い布で覆って使用した。温度計は、扉１８と右壁面から各１０ｃｍの位置で、高さ１５ｃｍに設置した。なお、計測中の室外温度は、２２〜２３．５℃であった。また、測定は、無換気の場合と、強制給気の場合と、強制排気の場合とでそれぞれ行った。
これらの測定結果からわかるように、本実施例の防音室では、遮音性能がＪＩＳ規格の遮音等級Ｄ−８０を満足している。また、本実施例の防音室では、室内の温度上昇も最大２．５℃と適切な結果が得られている。
The ventilation efficiency was determined by lighting a 40 W incandescent lamp installed at a height of 20 cm in the center of the room and measuring the temperature rise when the fan was turned on and off. The incandescent lamp was used by covering it with a black cloth to mitigate the effects of radiant heat. The thermometer was installed at a height of 15 cm at a position of 10 cm from the door 18 and the right wall surface. The outdoor temperature during measurement was 22 to 23.5 ° C. The measurement was performed in the case of no ventilation, forced air supply, and forced exhaust.
As can be seen from these measurement results, in the soundproof room of this example, the sound insulation performance satisfies the sound insulation grade D-80 of the JIS standard. Further, in the soundproof room of the present example, a suitable result is obtained with a maximum temperature rise of 2.5 ° C. in the room.
この実施例の防音室は、ペットを想定したものであるが、ペットは換気が不十分であると自身の体温で室温が激しく上昇し、健康に有害となるおそれがあるが、本実施例の防音室では、上述したように温度上昇も最小限に抑えられ、鼻面で気流を感じることができることから、快適に室内にいることができる。
また、従来、人が入る防音室とする場合、温度上昇のために室内にエアコンが不可欠とされているが、本発明の防音室では、室外が空調されていれば、エアコン等の空調設備を防音室自体に設置することを不要にすることが可能である。
The soundproof room in this example is assumed to be a pet, but if the pet is not well ventilated, the room temperature will rise sharply at its body temperature, which may be harmful to health. In the soundproof room, as described above, the temperature rise can be suppressed to the minimum, and airflow can be felt on the nose surface, so that the user can comfortably stay in the room.
Conventionally, in the case of a soundproof room where people can enter, an air conditioner is indispensable for the temperature rise. However, in the soundproof room of the present invention, if the outdoor is air-conditioned, air conditioning equipment such as an air conditioner is installed. It is possible to eliminate the need for installation in the soundproof room itself.
なお、本発明は上記実施形態に限定されるものではなく、本発明の趣旨を逸脱しない範囲において種々の変更を加えることが可能である。
例えば、上記実施形態では、本発明の遮音パネルを用いた防音構造を防音室に適用したが、防音壁や防音建具などの建築資材としても構わない。
また、内面材としては、微細な孔が多数形成されたパンチングパネル等を採用しても構わない。
さらに、内面材としてガラス不織布を採用したが、ポリエステル不織布などの他の不織布を採用しても構わない。
In addition, this invention is not limited to the said embodiment, A various change can be added in the range which does not deviate from the meaning of this invention.
For example, in the said embodiment, although the soundproof structure using the sound-insulation panel of this invention was applied to the soundproof room, it is good also as building materials, such as a soundproof wall and a soundproof fitting.
Further, as the inner surface material, a punching panel or the like in which many fine holes are formed may be employed.
Furthermore, although the glass nonwoven fabric was employ | adopted as an inner surface material, you may employ | adopt other nonwoven fabrics, such as a polyester nonwoven fabric.
１…遮音パネル、２…中空層、３…パネル部材、４…枠部材、４ａ…内側流通孔、６…外面材、７…内面材、８…中空筒状構造体、１０…防音室、１１…室内側通気口、１２…室外側通気口、１３…ファン DESCRIPTION OF SYMBOLS 1 ... Sound insulation panel, 2 ... Hollow layer, 3 ... Panel member, 4 ... Frame member, 4a ... Inner flow hole, 6 ... Outer surface material, 7 ... Inner surface material, 8 ... Hollow cylindrical structure, 10 ... Soundproof room, 11 ... indoor side vents, 12 ... outdoor side vents, 13 ... fan
Claims (4)
２つの前記パネル部材を支持する枠部材とを備え、
前記パネル部材が、外面材と、前記中空層側の内面材と、前記外面材と前記内面材とで内部に支持された複数の中空筒状構造体とを有したパネルであり、
前記外面材が、前記内面材よりも剛性の高い非通気性の板材で構成され、
前記内面材が、内外に通気可能なシート状又は板状の通気性材で構成されていることを特徴とする遮音パネル。 Two panel members spaced apart from each other and facing each other through a hollow layer;
A frame member that supports the two panel members;
The panel member, and outer members, and the inner surface material of the hollow layer side, a panel having a plurality of hollow cylindrical structure that is supported inside said inner surface member and the outer members,
The outer surface material is composed of a non-breathable plate material having higher rigidity than the inner surface material,
The sound insulation panel, wherein the inner surface material is constituted by a sheet-like or plate-like breathable material that can be ventilated inside and outside.
前記中空筒状構造体が、紙製であり、
前記内面材が、不織布であることを特徴とする遮音パネル。 The sound insulation panel according to claim 1,
The hollow cylindrical structure is made of paper,
The sound insulation panel, wherein the inner surface material is a nonwoven fabric.
前記枠部材に、互いに隣接する前記遮音パネルの前記中空層に連通する内側流通孔が形成されていることを特徴とする防音構造。 A plurality of sound insulation panels according to claim 1 or 2 having a wall, a ceiling or a floor,
The soundproof structure, wherein an inner flow hole communicating with the hollow layer of the sound insulation panel adjacent to each other is formed in the frame member.
複数の前記遮音パネルのうち、室内と前記中空層とを接続する室内側通気口が形成されているものと、室外と前記中空層とを接続する室外側通気口が形成されているものとを有し、
前記室外側通気口の近傍に、前記中空層内の空気を吸引して室外に排出可能又は室外の空気を前記中空層内に給気可能なファンが設けられていることを特徴とする防音室。 The soundproof structure according to claim 3,
Among the plurality of sound insulation panels, those having an indoor vent for connecting the room and the hollow layer and those having an outdoor vent for connecting the outdoor and the hollow layer are formed. Have
A soundproof room characterized in that a fan capable of sucking air inside the hollow layer and discharging it outside the room or supplying air outside the room into the hollow layer is provided in the vicinity of the outdoor vent. .
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