JP3492984B2 - Ventilation device with soundproof function - Google Patents
Ventilation device with soundproof functionInfo
- Publication number
- JP3492984B2 JP3492984B2 JP2000199174A JP2000199174A JP3492984B2 JP 3492984 B2 JP3492984 B2 JP 3492984B2 JP 2000199174 A JP2000199174 A JP 2000199174A JP 2000199174 A JP2000199174 A JP 2000199174A JP 3492984 B2 JP3492984 B2 JP 3492984B2
- Authority
- JP
- Japan
- Prior art keywords
- sound absorbing
- sound
- roof
- ventilation
- building
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Description
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【発明の属する技術分野】本発明は、建屋の屋内を換気
する機能に加え、屋内騒音を屋外に出さないように吸音
・遮音する防音機能を備えた換気装置に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation device having a function of ventilating the interior of a building and a soundproof function of absorbing and insulating noise so that indoor noise is not emitted outdoors.
【０００２】[0002]
【従来の技術】地下鉄などの公共機関、そして工場など
に設備される換気装置においては、騒音を外部に出すの
を防止する吸音・遮音機能が兼備されている場合が多
い。ここでいう吸音と遮音の区別については、『ＪＩＳ
工業用語大辞典』によれば、吸音とは主に空気音のエネ
ルギーを吸収する性能をいい、また遮音とは空気音や固
体音などを遮断，吸収または分散させて音の伝搬を遮る
性能とある。本明細書では便宜的に、以下吸音と遮音の
両用語を一括して防音（または消音）と表現する。2. Description of the Related Art Ventilators installed in public institutions such as subways and factories often have a sound absorbing / insulating function for preventing noise from being emitted outside. For the distinction between sound absorption and sound insulation, refer to "JIS
According to the “Industrial Term Dictionary”, sound absorption mainly refers to the ability to absorb the energy of air sound, and sound insulation refers to the ability to cut off, absorb or disperse air sound or solid sound to block the propagation of sound. is there. In the present specification, for the sake of convenience, both terms of sound absorption and sound insulation will be collectively referred to as soundproof (or sound deadening).
【０００３】このような防音機能付き換気装置の従来例
としては、実開昭５２−３８７５１号公報や特公昭５２
−１２８２号公報に記載されるスプリッター型消音器が
ある。これらの消音器にあっては、騒音を通さず外部漏
洩を防げる堅固な遮音性能材質のケーシングを備え、こ
のケーシングの内部に複数の板状吸音部材を平行に配置
して、吸音部材間の空隙を空気流通路として形成してい
る。そして、吸音部材の材質や形状を変更することによ
って、消音効果と通気能力を調整できるようになってい
る。As a conventional example of such a ventilation device with a soundproof function, Japanese Utility Model Publication No. 52-38751 and Japanese Examined Patent Publication No. 52 are disclosed.
There is a splitter type silencer described in Japanese Patent No. 1282. These mufflers are equipped with a casing made of a solid sound-insulating material that does not allow noise to pass and prevent external leakage, and a plurality of plate-shaped sound-absorbing members are arranged in parallel inside the casing to form a gap between the sound-absorbing members. Is formed as an air flow passage. The sound deadening effect and the ventilation capacity can be adjusted by changing the material and shape of the sound absorbing member.
【０００４】ところで、かかるスプリッター型消音器に
あっては、要求される遮音性能や建家への設置方法の違
いによって、その都度設計、製作するため、例えばカタ
ログに掲載されている型式でも作り置きしないのが一般
的であり、それによってケーシング等の部品・部材加工
やその組立費用がかかるという問題がある。By the way, such a splitter silencer is designed and manufactured each time depending on the required sound insulation performance and the installation method in the building. This is generally not done, and there is a problem in that processing of parts and members such as a casing and the assembling cost thereof are required.
【０００５】そうしたコスト高を解消しようと提案され
た防音機能付き換気装置の他の例としては、特開平１１
−６３６０１号公報，特開昭５４−６９２１７号公報お
よび特開昭５７−２０７３７号公報に記載されるような
装置がある。As another example of a ventilation device with a soundproofing function, which has been proposed to eliminate such a high cost, Japanese Patent Laid-Open No. Hei 11
There are devices as described in JP-A-63601, JP-A-54-69217 and JP-A-57-20737.
【０００６】その中でも、特開平１１−６３６０１号公
報記載の装置の場合、建屋の排気口の内側に空気流通路
が形成される程度の空隙を設けて遮音板を配置し、この
遮音板によって屋内騒音が排気口から直接外部に漏れ出
るのを防止している。しかしながら、かかる装置にあっ
ては、防音・消音性能をより高めようとすると、遮音板
の大きさや重量が大型化し、そうした遮音板を排気口下
に吊り下げる支持部材もそれ相応の強度が要求されて大
型化するので、やはり装置全体の重量増加に拍車をかけ
ることになる。その結果、このような装置の据え付けに
あたって、既設建屋や新設建屋の小屋組梁材などに相当
な強度負担がかかることことから、設計変更などが強い
られることになる。しかも、そうした労苦の割には防音
・消音性能が上記他の各公報記載の各装置と比べて劣る
といった問題がある。Among them, in the case of the device described in Japanese Patent Laid-Open No. 11-63601, a sound insulating plate is arranged inside the exhaust port of the building with a gap to the extent that an air flow passage is formed, and the sound insulating plate is used indoors. Noise is prevented from leaking directly from the exhaust port to the outside. However, in such a device, if the soundproofing / silencing performance is further enhanced, the size and weight of the sound insulating plate become large, and the supporting member for suspending such sound insulating plate under the exhaust port is also required to have a corresponding strength. As a result, the size of the entire device will increase, which will spur the increase in the weight of the entire device. As a result, when installing such a device, a considerable amount of strength is applied to the existing building or the beam of the beam of the roof of the new building, so that a design change or the like is forced. Moreover, in spite of such labor, there is a problem that the soundproofing / silencing performance is inferior to that of the respective devices described in the other publications.
【０００７】[0007]
【発明が解決しようとする課題】本発明の目的は、軽量
であって建家の強度に与える影響が少ないばかりではな
く、構造が簡単なので、加工組立費用が極めて安い防音
機能付き換気装置を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a ventilation device with a soundproofing function, which is not only lightweight and has little influence on the strength of a building, but also has a simple structure so that processing and assembling costs are extremely low. To do.
【０００８】[0008]
【課題を解決するための手段】上記課題を解決するため
に、本発明に係る防音機能付き換気装置は、建屋の屋根
棟に設けられた換気部の排気口に、屋根棟の小屋組み梁
材に結合した支持部材から、吸音性能を有する複数のプ
レート形状の吸音部材を換気口の口幅方向に間隔を設け
て吊り下げて吸音部を併設すると共に、隣り合う吸音部
材の間の空隙が排気口における空気流通路として形成さ
れている。In order to solve the above-mentioned problems, a ventilation device with a soundproof function according to the present invention has a roof of a building.
Exhaust vent of ventilation section installed in the ridge, roof ridge timber beams
From the support member connected to the material,
Space between the rate-shaped sound absorbing members in the width direction of the ventilation port
The sound absorbing portion is provided side by side by hanging it , and a space between adjacent sound absorbing members is formed as an air flow passage in the exhaust port.
【０００９】このような構成により、建屋の換気部排気
口を利用して新たに吸音部が併設され、この吸音部は複
数のプレート形状の吸音部材を間隔を設けて、一般には
ほぼ等間隔で空気流通路としながら吊り下げるだけの構
造であるから、これまで従来の同種構造の装置と比較し
て格段に簡単に据え付けることができ、また大幅な軽量
化によって既設または新設の建屋の小屋組強度に特別な
設計を要しないで済むという利点がある。With such a structure, a sound absorbing section is newly provided by utilizing the exhaust port of the ventilation section of the building. This sound absorbing section is provided with a plurality of plate-shaped sound absorbing members at intervals, and generally at substantially equal intervals. Since it is a structure that only hangs while it is an air flow passage, it can be installed much easier than conventional devices of the same structure so far, and due to its significant weight reduction, it is the strength of the roof of the existing or new building Has the advantage that it does not require any special design.
【００１０】また、換気部の排気口が建屋の屋根棟に設
けられる場合、この屋根棟に沿って吸音部材が排気口の
口幅方向へ間隔をおいて、一般には等間隔に配置され
る。When the exhaust ports of the ventilation section are provided in the roof ridge of the building, the sound absorbing members are arranged at regular intervals along the roof ridge in the width direction of the exhaust port.
【００１１】このような構成により、換気部が建屋の屋
根棟といった高所に設置されている場合、これに併設さ
れる吸音部の取り付けも高所作業となるが、屋根棟の小
屋組梁材のピッチ次第では吸音部材の一枚一枚の重量を
軽く抑えて、人の手作業で簡便に組立作業を行うことが
できる。With such a structure, when the ventilation part is installed at a high place such as a roof ridge of a building, the sound absorbing part attached to it is also installed at a high place. Depending on the pitch, the weight of each sound absorbing member can be suppressed lightly, and the assembling work can be easily performed manually by a person.
【００１２】また、各吸音部材を吊り下げて支持する各
支持部材を屋根棟の小屋組み梁材に結合して吸音部が形
成されている。Further , the sound absorbing portion is formed by connecting the respective supporting members for suspending and supporting the respective sound absorbing members to the beam members of the roof ridge of the roof ridge.
【００１３】このような構成により、この屋根棟の小屋
組梁材のピッチが例えば約２０００〜３０００ｍｍ以下
であれば、併設される吸音部の吸音部材の一枚重量は人
の手作業で扱える軽量に抑えることができ、そうした軽
量の吸音部材を一枚ずつ支持部材を介して小屋組み梁材
に能率的かつ安全な作業で取り付けることができる。With such a structure , if the pitch of the roof beam members of the roof ridge is, for example, about 2000 to 3000 mm or less, the weight of one sound absorbing member of the sound absorbing section to be installed is light so that it can be manually handled by a person. Therefore, it is possible to attach such light-weight sound absorbing members to the roof-structured beam member one by one through the supporting member in an efficient and safe operation.
【００１４】また、請求項２記載の防音機能付き換気装
置は、吸音部材の材質が、吸音性能を有するようにプレ
ート状に成形されたグラスウールまたはロックウールで
ある。Further, in the ventilator with a soundproof function according to a second aspect , the material of the sound absorbing member is glass wool or rock wool molded in a plate shape so as to have sound absorbing performance.
【００１５】この場合、グラスウールやロックウールと
いった汎用の市販製品を簡易に利用することができると
いった利点がある。In this case, there is an advantage that general-purpose commercial products such as glass wool and rock wool can be easily used.
【００１６】また、請求項３記載の防音機能付き換気装
置は、グラスウールまたはロックウールの表面にガラス
クロスを貼着させている。Further, in the ventilator with a soundproof function according to a third aspect of the present invention, glass cloth is adhered to the surface of glass wool or rock wool.
【００１７】この場合、経時使用によるグラスウールま
たはロックウールの劣化に起因する繊維飛散を防ぐため
に、表面をガラスクロスで被覆しておけば、環境配慮へ
の見地からもより好ましい。In this case, in order to prevent the fibers from scattering due to deterioration of glass wool or rock wool due to use over time, it is more preferable from the viewpoint of environmental consideration to coat the surface with glass cloth.
【００１８】[0018]
【発明の実施の形態】本発明にかかる防音機能付き換気
装置の実施の形態について、図面に基づいて詳細に説明
する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a soundproof ventilation device according to the present invention will be described in detail with reference to the drawings.
【００１９】図１は、本実施の形態にかかる防音機能付
き換気装置（以下、本装置という）１０を屋根棟に設置
される既設建屋や新設建屋など建屋１の側面断面として
示している。この場合、建屋１の両側壁２の下方に外気
取り入れ口３が設けてあり、屋根棟に本装置１０の換気
部排気口１１が設けられている。FIG. 1 is a side cross-sectional view of a building 1 such as an existing building or a new building installed in a roof wing of a soundproof ventilation device (hereinafter referred to as this device) 10 according to the present embodiment. In this case, an outside air intake port 3 is provided below both side walls 2 of the building 1, and a ventilation section exhaust port 11 of the device 10 is provided in the roof ridge.
【００２０】図２は、その屋根棟に据え付けられた本装
置１０の拡大図である。両側に適宜勾配の合掌屋根４を
有し、この合掌屋根４の頂部である屋根棟に沿って本装
置１０の換気部排気口１１が屋根棟に沿って連続または
断続的に設けられ、そうした排気口１１の上位に換気部
１２が設置されている。この換気部１２を支持する部材
として下部板ベース１３が排気口１１の図でいう上端出
口側に備わっている。排気口１１は、その口幅寸法Ｗの
方向の両側の縁取り部材１４によって屋根棟方向へ延び
て形成され、そうした両側の縁取り部材１４間に本発明
の要部である吸音部１５が配置されている。FIG. 2 is an enlarged view of the present apparatus 10 installed on the roof ridge. There is an appropriately sloping roof 4 on both sides, and a ventilation section exhaust port 11 of the present device 10 is provided continuously or intermittently along the roof ridge along the roof ridge, which is the top of the roof 4. A ventilation unit 12 is installed above the mouth 11. A lower plate base 13 is provided on the upper end outlet side of the exhaust port 11 as a member for supporting the ventilation part 12. The exhaust port 11 is formed so as to extend in the roof ridge direction by the edging members 14 on both sides in the direction of the mouth width dimension W, and the sound absorbing portion 15 which is a main part of the present invention is arranged between the edging members 14 on both sides. There is.
【００２１】図３の斜視図に示すように、吸音部１５で
は、主要部を構成する複数の短冊形状の吸音プレート
（吸音部材）１６が排気口１１の口幅寸法Ｗ方向へ好ま
しくは等間隔ピッチＰで配置され、屋根棟に沿って延び
ている。吸音プレート１６の材質にはグラスウールやロ
ックウール(スラグウールを含む)など汎用の市販製品を
利用することができる。ロックウールは、周知のよう
に、鉱滓綿や流動鉱滓を圧縮空気または蒸気で小孔に通
して吹き飛ばすことにより、ケイ酸塩を繊維状としたも
のである。グラスウールやロックウールの経時使用によ
る劣化で繊維成分の飛散を防止する意味から、板表面に
ガラスクロスを貼着しておくことは環境への配慮から有
効である。また、そうしたグラスウールやロックウール
などの材質に代えて、セラミックスや金属を繊維化した
吸音性能を有する材質で形成することもできる。吸音プ
レート１６の板厚寸法は、例えば約２５〜１００ｍｍ程
度とすることができる。As shown in the perspective view of FIG. 3, in the sound absorbing portion 15, a plurality of strip-shaped sound absorbing plates (sound absorbing members) 16 constituting the main part are preferably equidistant in the width W direction of the exhaust port 11. They are arranged at pitch P and extend along the roof ridge. As the material of the sound absorbing plate 16, general-purpose commercial products such as glass wool and rock wool (including slag wool) can be used. As is well known, rockwool is a fiber made of silicate by blowing away cotton wool or fluidized mineral dust with compressed air or steam through small holes. It is effective to attach a glass cloth to the surface of the plate in consideration of the environment in order to prevent the fiber component from scattering due to deterioration of glass wool or rock wool over time. Further, instead of such a material such as glass wool or rock wool, it is also possible to form the material having sound absorbing performance by fiberizing ceramics or metal. The thickness of the sound absorbing plate 16 can be, for example, about 25 to 100 mm.
【００２２】したがって、排気口１１ではかかる複数枚
の吸音プレート１６が、それぞれの上端で支持部材を介
して吊り下げられた状態で支持されている。支持部材
は、吸音プレート１６の上端に下端部を係止した棒状の
つなぎ部材１７と、このつなぎ部材１７の上端部を係止
して支持する断面Ｃ字形のチャンネル型鋼などによる吊
下梁１８によって構成されている。つなぎ部材１７とし
ては、図示例のような棒材に代えて平板など用いること
もできる。すなわち、チャンネル形状の吊下梁１８は吸
音プレート１６の間隔ピッチＰに対応して平行に屋根棟
方向へ延び、例えば屋根棟の小屋組み梁材やスラブを利
用して固定することもできるし、先述した換気部１２の
下部板ベース１３を利用してこれに固定することもでき
る。Therefore, at the exhaust port 11, the plurality of sound absorbing plates 16 are supported in a state of being suspended at the upper ends of the sound absorbing plates 16 via the supporting members. The support member is composed of a rod-shaped connecting member 17 whose lower end is locked to the upper end of the sound absorbing plate 16 and a suspension beam 18 made of a channel-shaped steel having a C-shaped cross section for locking and supporting the upper end of the connecting member 17. It is configured. As the connecting member 17, a flat plate or the like may be used instead of the bar member as shown in the drawing. That is, the channel-shaped suspension beams 18 extend in parallel to the roof ridge direction corresponding to the pitch P of the sound absorbing plates 16 and can be fixed by using, for example, a roof-structured beam material or a slab of the roof ridge. It is also possible to use the lower plate base 13 of the ventilation part 12 and fix it to this.
【００２３】一枚一枚の吸音プレート１６を屋根棟の小
屋組み梁材を利用して吊り下げ支持する場合、梁ピッチ
が約２０００〜３０００ｍｍ以下であれば、一枚の吸音
プレート１６の重量を例えば２０ｋｇ以下の軽量に抑え
ることができ、人の手作業で簡単かつ労苦なくつなぎ部
材１７や吊下梁１８を介して小屋組み梁材に取り付ける
ことができる。When each sound absorbing plate 16 is suspended and supported by using the roof-structured beam members of the roof ridge, if the beam pitch is about 2000 to 3000 mm or less, the weight of each sound absorbing plate 16 is, for example, The weight can be suppressed to 20 kg or less, and it can be easily and effortlessly attached to a timber beam member for a roof frame through a connecting member 17 and a hanging beam 18 by a manual operation.
【００２４】別の構造例として、吸音プレート１６の枚
数に対応する本数のチャンネル形状の吊下梁１８を別製
作の固定枠に上記間隔ピッチＰで枠組みし、そうした枠
組み吊下梁１８につなぎ部材１７を結合して吸音プレー
ト１６を吊り下げて一体化構造にすることもできる。こ
の場合には、重量的に人の手作業ではやや無理があるの
で、屋根棟といった高所での据え付け作業の安全を重視
してクレーンなどの揚重機による機械力を利用すること
が好ましい。As another example of the structure, channel-shaped suspension beams 18 of a number corresponding to the number of sound absorbing plates 16 are framed in a separately manufactured fixed frame at the interval pitch P, and a connecting member is connected to the frame suspension beams 18. Alternatively, the sound absorbing plate 16 may be suspended by connecting 17 to form an integrated structure. In this case, since it is somewhat difficult for humans to manually perform in terms of weight, it is preferable to use the mechanical force of a lifting machine such as a crane, placing importance on the safety of installation work at a high place such as a roof ridge.
【００２５】さらに別の構造例として、特に新設建屋の
建築現場に本装置１０を据え付けるような場合、合掌屋
根４の小屋組みの段階で、すべての吸音プレート１６と
支持部材を固定枠に結合して一体化した構造に、さらに
換気部１２を取り付けることもできる。すなわち、本装
置１０全体を地上で仮組みや本組みした状態で、クレー
ンによって建屋１の屋根棟に設けた排気口１１の上部に
組み込む形で据え付けることも可能である。As another example of the structure, particularly when the apparatus 10 is installed on the construction site of a new building, all the sound absorbing plates 16 and the supporting members are connected to the fixed frame at the stage of building the roof of the gastric roof 4. The ventilation part 12 can also be attached to the integrated structure. That is, it is also possible to install the entire apparatus 10 on the ground in a temporarily assembled state or in a fully assembled state so as to be incorporated in the upper portion of the exhaust port 11 provided in the roof ridge of the building 1 by a crane.
【００２６】以上の各構造形態による本装置１０にあっ
ては、吸音プレート１６のつなぎ部材１７や吊下梁１８
からなる支持部材、またこれらを組み立てる固定枠など
への各部結合個所は溶接のほか、ボルト締結構造などと
することができる。ボルト組み構造の場合、後々撤去や
新旧交換、そして解体修繕の必要が生じた場合でも取り
外しや取り付けるのに便利である。In the present apparatus 10 having the above-described respective structural forms, the connecting member 17 of the sound absorbing plate 16 and the suspension beam 18 are provided.
In addition to welding, the supporting members made of, and the connecting points of the respective parts to the fixed frame for assembling them can have a bolt fastening structure or the like. In the case of a bolt assembly structure, it is convenient to remove and install even if it is necessary to remove, replace old and new, and dismantle and repair later.
【００２７】本装置１０はこのような構成されているか
ら、建屋１の屋内換気は外気取り入れ口３から導入した
外気を対流させて、図中破線矢印で示す屋内の汚染空気
などを屋根棟の本装置１０における排気口１１に通し、
吸音部１５の各吸音プレート１６間の空気流通路を流通
させて換気部１２から屋外に排出する。Since the present apparatus 10 is constructed in this manner, the indoor ventilation of the building 1 is conducted by convection the outside air introduced from the outside air intake 3, and the indoor contaminated air shown by the broken line arrow in the figure is transferred to the roof ridge. Through the exhaust port 11 of the device 10,
The air flow path between the sound absorbing plates 16 of the sound absorbing unit 15 is circulated and discharged from the ventilation unit 12 to the outside.
【００２８】その際、屋内で発生した騒音などは、本装
置１０の吸音部１５において各吸音プレート１６で吸音
・遮音させる作用によって有効に防音する。At this time, noises generated indoors are effectively sound-proofed by the sound absorbing portion 15 of the apparatus 10 by the sound absorbing plates 16 absorbing and insulating the sound.
【００２９】−実施例−
本装置１０の吸音プレート１６をグラスウールを用い
て、長さ寸法６００ｍｍ，板厚５０ｍｍ、単位荷重２４
ｋｇ／ｍ３のプレート形状に作製した。この吸音プレー
ト１６の複数枚をピッチＰ：５５０ｍｍで排気口１１に
吊り下げて支持させ、これを「実施例」とした。これに
対して、吸音部１５を設けず、換気部１２における内部
プレートにグラスウールを裏貼りした構造による装置を
「比較例」とした。-Embodiment- The sound absorbing plate 16 of the present apparatus 10 is made of glass wool and has a length dimension of 600 mm, a plate thickness of 50 mm and a unit load of 24.
It was made into a plate shape of kg / m3. A plurality of the sound absorbing plates 16 were hung and supported by the exhaust port 11 at a pitch P of 550 mm, which was referred to as "Example". On the other hand, a device having a structure in which the sound absorbing part 15 is not provided and the inner plate of the ventilation part 12 is back-coated with glass wool is referred to as "comparative example".
【００３０】図４は、上記実施例と比較例の両構造にお
ける防音効果を比較するうえで、中心周波数（Ｈｚ）と
透過損失（ｄＢ）との相関性能を示す特性グラフであ
る。この特性グラフから明らかなように、実施例(◆)の
場合にあっては、比較例(▲)の場合と比べて騒音源の中
心周波数１０００Ｈｚ以上で防音性能が有効であること
が理解される。なお、●は吸音板単体についての測定値
である。また、実施例にあっては、吸音プレート１６の
寸法仕様や配置ピッチＰを可変すると、上記透過損失か
らみた特性向上がさらに有効となる。FIG. 4 is a characteristic graph showing the correlation performance between the center frequency (Hz) and the transmission loss (dB) in comparing the soundproofing effects in both the structures of the above-mentioned example and the comparative example. As is clear from this characteristic graph, in the case of the example (◆), it is understood that the soundproof performance is more effective at the center frequency of 1000 Hz or higher of the noise source than in the case of the comparative example (▲). . In addition, ● is a measured value of the sound absorbing plate alone. Further, in the embodiment, if the dimensional specifications of the sound absorbing plate 16 and the arrangement pitch P are varied, the characteristic improvement in view of the above transmission loss becomes more effective.
【００３１】なお、上記実施例の吸音部１５の作製にあ
たって、吸音プレート１６の単位長さ重量を０．３６ｋ
ｇ／ｍとし、吊下梁１８にＣ型軽量溝型鋼のＨ１００×
Ａ５０×Ｃ２０×ｔ２．３（ｍｍ）の材料を用いた場
合、１ｍ当たりの重量は４．０６ｋｇとなり、吸音プレ
ート１６の重量０．３６ｋｇ／ｍと合算しても約５．０
ｋｇ／ｍに抑えることができる。これは前述の各公報技
術による防音機能付き換気装置の単位重量と比べても格
段に軽量化が図れることを表わしている。In manufacturing the sound absorbing portion 15 of the above embodiment, the weight of the sound absorbing plate 16 per unit length is 0.36 k.
g / m, H100 × C type lightweight grooved steel for suspension beam 18
When the material of A50 × C20 × t2.3 (mm) is used, the weight per 1 m is 4.06 kg, and even if the weight of the sound absorbing plate 16 is 0.36 kg / m, it is about 5.0.
It can be suppressed to kg / m. This means that the weight can be remarkably reduced as compared with the unit weight of the ventilation device with the soundproofing function according to the above-mentioned respective publications.
【００３２】[0032]
【発明の効果】本発明にかかる防音機能付き換気装置
は、建屋の換気部や排気口を利用して新たに吸音部が併
設され、この吸音部は複数のプレート形状の吸音部材を
間隔をおいて空気流通路としながら吊り下げるだけの構
造であるから、これまで従来の同種構造の装置と比較し
て格段と簡単に据え付けることができ、また大幅な軽量
化によって既設または新設の建屋の小屋組強度に特別な
設計を要しないで済むという利点がみられる。EFFECTS OF THE INVENTION In the soundproof ventilation device according to the present invention, a sound absorbing part is newly provided by utilizing the ventilation part and the exhaust port of the building, and the sound absorbing part is provided with a plurality of plate-shaped sound absorbing members at intervals. Since it is a structure that only suspends it while using it as an airflow passage, it can be installed much easier compared to the conventional device of the same structure, and due to the significant weight reduction, it is a roof of the existing or new building It has the advantage of not requiring a special design for strength.
【００３３】また、換気部が建屋の屋根棟といった高所
に設置されている場合、これに併設される吸音部の取り
付けも高所作業となるが、屋根棟の小屋組梁材のピッチ
次第では吸音部材の一枚一枚の重量を軽く抑えて、人の
手作業でもって簡便に組立作業を行うことができる。Further, when the ventilation section is installed at a high place such as a roof ridge of a building, installation of a sound absorbing section attached to it is also a high place work, but depending on the pitch of the roof beam of the roof ridge. The weight of each sound absorbing member is lightly suppressed, and the assembling work can be easily performed by a manual work of a person.
【００３４】また、換気部の設置部位が建屋の屋根棟の
場合、この屋根棟の小屋組梁材のピッチが例えば約２０
００〜３０００ｍｍ以下であれば、併設される吸音部の
吸音部材一枚の重量は人の手作業で扱える軽量に抑える
ことができ、そうした軽量の吸音部材を一枚ずつ支持部
材を介して小屋組み梁材に能率的かつ安全な作業でもっ
て取り付けることができる。When the installation site of the ventilation section is the roof ridge of the building, the pitch of the roof beam members of this roof ridge is, for example, about 20.
If it is from 00 to 3000 mm or less, the weight of one sound absorbing member of the sound absorbing section to be installed can be suppressed to a light weight that can be manually handled by a person, and each such light sound absorbing member can be supported one by one through the supporting member. It can be attached to wood with efficient and safe work.
【００３５】また、プレート形状の吸音部材の材質にグ
ラスウールやロックウールといった汎用の市販製品を簡
易に利用することができ、経時使用によるグラスウール
またはロックウールの劣化で繊維飛散を防ぐために、表
面をガラスクロスで被覆しておけば、環境配慮への見地
からもより好ましい。Further, a general-purpose commercially available product such as glass wool or rock wool can be easily used as the material of the plate-shaped sound absorbing member, and the surface of the glass is covered with glass in order to prevent fiber scattering due to deterioration of the glass wool or rock wool over time. Covering with a cloth is more preferable from the viewpoint of environmental consideration.
【００３６】結局、従来は換気装置と遮音装置(消音
器、遮音板など)とを別々に設けることが常識だったの
に対し、本発明においては、換気装置に対して遮音性の
ないことが知られている吸音材を適切に配置することに
より、遮音機能を引出し得たものであり、これが結果的
に簡易な構造および軽量化に結び付いているという効果
が奏せられている。After all, it has been common knowledge that a ventilator and a sound insulation device (silencer, sound insulation plate, etc.) are separately provided in the past, but in the present invention, there is no sound insulation for the ventilation device. By appropriately arranging a known sound absorbing material, the sound insulation function can be brought out, and as a result, the effect that it is connected to a simple structure and weight reduction is exhibited.
【図１】本発明に係る防音機能付き換気装置が屋根棟に
設置される建屋の一例を概略的に示す側面断面図であ
る。FIG. 1 is a side sectional view schematically showing an example of a building in which a soundproof ventilation device according to the present invention is installed in a roof ridge.
【図２】本実施形態において要部を拡大して示す側面断
面図である。FIG. 2 is a side cross-sectional view showing an enlarged main part in the present embodiment.
【図３】本実施形態の要部である吸音部を示す斜視図で
ある。FIG. 3 is a perspective view showing a sound absorbing portion that is a main portion of the present embodiment.
【図４】騒音源の中心周波数と透過損失と相関について
実施例と比較例を比較して示す特性グラフである。FIG. 4 is a characteristic graph showing the correlation between the center frequency of the noise source, the transmission loss, and the correlation between the example and the comparative example.
１ 建屋 ２ 側壁 ３ 外気取り入れ口 ４ 合掌屋根 １０ 換気装置 １１ 排気口 １２ 換気部 １３ 下部板ベース １４ 排気口縁取り部材 １５ 吸音部 １６ 吸音プレート １７ つなぎ部材 １８ 吊下梁 1 building 2 side walls 3 Outside air intake 4 Gassho roof 10 Ventilator 11 exhaust port 12 Ventilation section 13 Lower plate base 14 Exhaust port edging member 15 Sound absorption part 16 sound absorbing plate 17 tie members 18 hanging beams
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平９−324479（ＪＰ，Ａ) 実開 昭60−4833（ＪＰ，Ｕ) 実開 昭62−14245（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F24F 7/00 - 7/06 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Japanese Unexamined Patent Publication No. 9-324479 (JP, A) Actually open 60-4833 (JP, U) Actually open 62-14245 (JP, U) (58) Field (Int.Cl. 7 , DB name) F24F 7/ 00-7/06
Claims (3)
口に、屋根棟の小屋組み梁材に結合した支持部材から、
吸音性能を有する複数のプレート形状の吸音部材を換気
口の口幅方向に間隔を設けて吊り下げて吸音部を併設す
ると共に、隣り合う吸音部材の間の空隙を排気口におけ
る空気流通路として形成せしめた防音機能付き換気装
置。 [Claim 1] Exhaust air from a ventilation section provided in a roof ridge of a building
In the mouth, from the support member connected to the roof beam of the roof ridge,
Ventilate multiple plate-shaped sound absorbing members with sound absorbing performance
Suspended with a gap in the mouth width direction to add a sound absorbing part
In addition, keep the space between the adjacent sound absorbing members at the exhaust port.
Ventilation device with soundproof function formed as an airflow passage
Place
レート状に成形されたグラスウールまたはロックウール
である請求項１記載の防音機能付き換気装置。2. The ventilation device with a soundproofing function according to claim 1 , wherein the sound absorbing member is glass wool or rock wool molded in a plate shape so as to have sound absorbing performance.
にガラスクロスが貼着されている請求項２記載の防音機
能付き換気装置。3. The ventilation device with a soundproofing function according to claim 2 , wherein a glass cloth is attached to the surface of glass wool or rock wool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000199174A JP3492984B2 (en) | 2000-06-30 | 2000-06-30 | Ventilation device with soundproof function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000199174A JP3492984B2 (en) | 2000-06-30 | 2000-06-30 | Ventilation device with soundproof function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002022225A JP2002022225A (en) | 2002-01-23 |
| JP3492984B2 true JP3492984B2 (en) | 2004-02-03 |
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ID=18697230
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|---|---|---|---|
| JP2000199174A Expired - Fee Related JP3492984B2 (en) | 2000-06-30 | 2000-06-30 | Ventilation device with soundproof function |
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|---|---|---|---|---|
| JP4716438B2 (en) * | 2007-06-19 | 2011-07-06 | 株式会社マックス | Noise reduction structure of Amusement Machine Island |
| JP2011098129A (en) * | 2009-11-09 | 2011-05-19 | Max:Kk | Noise-reduction structure of pachinko machine island |
| CN108798075B (en) * | 2018-06-22 | 2024-07-23 | 芬格隔墙系统（北京）有限公司 | House in house |
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