JPH1018469A - Soundproof unit - Google Patents
Soundproof unitInfo
- Publication number
- JPH1018469A JPH1018469A JP8188704A JP18870496A JPH1018469A JP H1018469 A JPH1018469 A JP H1018469A JP 8188704 A JP8188704 A JP 8188704A JP 18870496 A JP18870496 A JP 18870496A JP H1018469 A JPH1018469 A JP H1018469A
- Authority
- JP
- Japan
- Prior art keywords
- wall
- main frame
- pair
- inclined plates
- plate
- 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.)
- Granted
Links
Landscapes
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Building Environments (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、道路，鉄道，工
場等により発生する騒音の防止対策として設けられる防
音壁に用いられる防音ユニットに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soundproof unit used for a soundproof wall provided as a measure for preventing noise generated by roads, railways, factories and the like.
【０００２】[0002]
【従来の技術】従来、道路，鉄道，工場等により発生す
る騒音の防止対策としては、騒音発生源より直接的に騒
音が伝播するのを防止するため、防音壁を設置すること
が広く採用されている。これは、各種騒音防止対策の中
で防音壁が対策費用が比較的安く、しかも、種々の騒音
発生源に対し効果的であるためである。騒音低減効果を
より大きくするためには、防音壁の高さを高くすること
が必要である。しかし防音壁を高くすると、コストアッ
プになる（高さが高くなればなるほど施工費等が増し、
コストアップになる）。また、日照，景観，眺望，圧迫
感，通風，電波障害，耐風荷重等多くの問題がある。2. Description of the Related Art Conventionally, as a measure for preventing noise generated by roads, railways, factories, and the like, installation of a soundproof wall has been widely adopted to prevent noise from directly transmitting from a noise source. ing. This is because sound barriers are relatively inexpensive in various noise prevention measures, and are effective for various noise sources. In order to increase the noise reduction effect, it is necessary to increase the height of the soundproof wall. However, raising the noise barrier increases costs (the higher the height, the higher the construction costs,
It will increase the cost). In addition, there are many problems such as sunshine, landscape, view, feeling of oppression, ventilation, radio interference, wind load resistance, and the like.
【０００３】さらには直壁だけでは、騒音低減効果が不
十分な場合、防音壁の先端部を騒音発生源側に「く」の
字に折り曲げた先折れ型防音壁や防音壁の先端部を騒音
発生源側に湾曲した湾曲型防音壁があるが、これらは直
壁以上に、景観，眺望，圧迫感，通風，電波障害，耐風
荷重等が問題となる。最近交通量の増加、車両の高速化
に伴い、環境騒音問題が深刻になり、他に対応策がない
ので、前記の問題点を犠牲にして３ｍ，７ｍ，１０ｍと
いった高さの直壁型防音壁、さらには先折れ型防音壁、
湾曲型防音壁が使われている。Further, if the noise reduction effect is not sufficient with the straight wall alone, the front end of the soundproof wall or the front end of the soundproof wall formed by bending the front end of the soundproof wall toward the noise source side in a shape of "<" is used. There are curved soundproof walls that are curved on the noise source side, but these have more problems than landscape walls, such as landscape, view, oppression, ventilation, radio interference, wind resistance, and the like. Recently, with the increase in traffic volume and the speed of vehicles, the environmental noise problem has become serious, and there is no other countermeasure. Therefore, at the expense of the above problems, 3m, 7m, and 10m straight wall soundproofing. Walls, and even break-through soundproof walls,
Curved soundproof walls are used.
【０００４】しかし、これらの防音壁を用いても、これ
らは防音壁の高さに見合った効果しか期待できない。一
般的に、遠方（防音壁より２０ｍ程度離れたところ）の
位置では、防音壁の高さを１ｍ増すことにより得られる
騒音低減効果は約１ｄＢである。However, even if these soundproof walls are used, they can only be expected to have an effect corresponding to the height of the soundproof walls. In general, at a distant position (at a distance of about 20 m from the soundproof wall), the noise reduction effect obtained by increasing the height of the soundproof wall by 1 m is about 1 dB.
【０００５】そこで、防音壁の高さを高くすることなし
に、騒音低減効果を増大するために、上端側がＶ字型の
補助壁を設けたＹ型防音壁が開発された。Therefore, in order to increase the noise reduction effect without increasing the height of the soundproof wall, a Y-type soundproof wall provided with a V-shaped auxiliary wall at the upper end has been developed.
【０００６】[0006]
【発明が解決しようとする課題】このＹ型防音壁は、防
音壁の高さを高くすることなく、騒音低減効果を上げる
ことができるが、施工の面で問題があった。すなわち、
直壁上に傾斜した壁を設けるために施工作業が困難とな
り、直壁に一体確実に取付けられないおそれもあり、工
期を短縮するのもむずかしかった。This Y-type soundproof wall can increase the noise reduction effect without increasing the height of the soundproof wall, but has a problem in construction. That is,
The installation work is difficult due to the provision of the inclined wall on the straight wall, and there is a possibility that the installation work may not be securely attached to the straight wall, and it is difficult to shorten the construction period.
【０００７】そこで、この発明は、防音壁の高さを高く
することなく、騒音低減効果を上げ、しかも施工が容易
かつ迅速に行えるＹ型防音壁の上端側のＶ字型を形成す
る防音ユニットを提供することを目的とする。Therefore, the present invention provides a soundproofing unit which forms a V-shape on the upper end side of a Y-type soundproofing wall which can improve the noise reduction effect without increasing the height of the soundproofing wall and which can be easily and quickly performed. The purpose is to provide.
【０００８】[0008]
【課題を解決するための手段】上記の目的を達成するた
め、この発明は、所定間隔をあけて設けた支柱間に壁パ
ネルを取付けて本体壁を構成し、この本体壁の上端にＶ
字型の第１及び第２の分岐壁を形成するための防音ユニ
ットであって、中央のメインフレームの下側に一対の傾
斜板の基端を回動可能に取付け、メインフレームの垂直
部に上下方向に亘ってガイド部を形成し、一対の傾斜板
の先端に夫々アームの一端を回動可能に取付け、これら
アームの他端を上記ガイド部に上下動可能に取付け、一
対の傾斜板をメインフレームに向けて回動させて折り畳
み可能にするとともに、メインフレームから離れてアー
ム他端がガイド部上端まで移動して一対の傾斜板が開い
て分岐壁を形成するものである。In order to achieve the above object, according to the present invention, a body panel is formed by mounting a wall panel between columns provided at a predetermined interval, and a V-shaped member is provided at an upper end of the body wall.
A soundproofing unit for forming a first and a second branch wall having a U-shape, wherein the base ends of a pair of inclined plates are rotatably attached to a lower side of a central main frame, and are attached to a vertical portion of the main frame. A guide portion is formed in the vertical direction, one end of each arm is rotatably attached to the tip of a pair of inclined plates, and the other end of these arms is attached to the guide portion so as to be vertically movable, and a pair of inclined plates is formed. The arm is pivoted toward the main frame to enable folding, and the other end of the arm moves away from the main frame to the upper end of the guide portion to open a pair of inclined plates to form a branch wall.
【０００９】[0009]
【発明の実施の形態】以下に、この発明の好適な実施例
を図面を参照にして説明する。Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
【００１０】図１に示す防音ユニット１は、中央に位置
する矩形状のメインフレーム２の下側に一対の傾斜板
３，４の基端を回動可能に取付けてある。また、メイン
フレーム２の垂直部２Ａ，２Ｂの内面側に上下方向に亘
ってガイド部５を形成し、一対の傾斜板３，４の先端に
夫々アーム６，７の一端を回動可能に取付けてある。こ
れらアーム６，７の他端をガイド部５に上下動可能に取
付けてある。一対の傾斜板３，４をメインフレーム２に
向けて回動させて折り畳み可能にするとともに、メイン
フレーム２から離れてアーム６，７の他端がガイド部５
の上端まで移動して一対の傾斜板３，４が開いて分岐壁
３０，４０を形成するようになっている。さらに、一対
の傾斜板３，４の各内面に傾斜板３，４の幅方向に亘る
長さの長板８，９の基端を回動可能に取付け、これら長
板８，９の先端側をアーム６，７に形成された長孔１
０，１１内を移動するピン１２，１３に回動可能に取付
けてある。傾斜板３，４の折り畳み時にピン１２，１３
が長孔１０，１１のメインフレーム２寄りに移動して長
板８，９を傾斜板３，４に向けて倒して両者を重ね合わ
せ、傾斜板３，４を開いた時にピン１２，１３が長孔１
０，１１のメインフレーム２から離れる方向に移動して
長板８，９を傾斜板３，４上で立ち上がらせて再分岐壁
８０，９０を形成するようになっている。図１に示す防
音ユニット１は途中まで開いた状態を示している。In the soundproofing unit 1 shown in FIG. 1, the base ends of a pair of inclined plates 3 and 4 are rotatably mounted below a rectangular main frame 2 located at the center. Also, a guide portion 5 is formed vertically on the inner surface side of the vertical portions 2A, 2B of the main frame 2, and one ends of arms 6, 7 are rotatably attached to the tips of the pair of inclined plates 3, 4, respectively. It is. The other ends of the arms 6 and 7 are attached to the guide portion 5 so as to be vertically movable. The pair of inclined plates 3 and 4 are turned toward the main frame 2 so as to be foldable, and apart from the main frame 2, the other ends of the arms 6 and 7 are
And a pair of inclined plates 3 and 4 are opened to form branch walls 30 and 40. Further, the base ends of the long plates 8, 9 having a length extending in the width direction of the inclined plates 3, 4 are rotatably mounted on the inner surfaces of the pair of inclined plates 3, 4, respectively. To the long holes 1 formed in the arms 6 and 7
It is rotatably attached to pins 12 and 13 which move inside 0 and 11. When folding the inclined plates 3 and 4, the pins 12 and 13
Are moved toward the main frame 2 of the slots 10 and 11, the plates 8 and 9 are tilted toward the inclined plates 3 and 4, and the two are overlapped. When the inclined plates 3 and 4 are opened, the pins 12 and 13 Slot 1
The long plates 8, 9 are moved up in the direction away from the main frame 2, and rise up on the inclined plates 3, 4 to form re-branching walls 80, 90. The soundproofing unit 1 shown in FIG. 1 shows a state where it is opened halfway.
【００１１】図２はアーム６，７とガイド部５との関係
を示す図であり、アーム６，７の他端には、レール部材
１４が回動可能に取付けてあり、このレール部材１４の
突起部分がガイド部５に挿入されている。また、メイン
フレーム２の垂直部２Ａの両側には取付板１５が固着し
てあり、傾斜板３，４を完全に開ききった状態において
アーム６，７の他端側をこの取付板１５にボルト等で固
着するようになっている。FIG. 2 is a view showing the relationship between the arms 6 and 7 and the guide portion 5. A rail member 14 is rotatably attached to the other ends of the arms 6 and 7, and The protrusion is inserted into the guide portion 5. Mounting plates 15 are fixed to both sides of the vertical portion 2A of the main frame 2, and the other ends of the arms 6, 7 are bolted to the mounting plates 15 when the inclined plates 3, 4 are completely opened. And so on.
【００１２】図３は、傾斜板３，４の基端側の取付例を
示すものであり、メインフレーム２の下側に取付片１６
を設け、この取付片１６と傾斜板３，４の基端部とをピ
ン１７で回動可能に連結してある。FIG. 3 shows an example of mounting the inclined plates 3 and 4 on the base end side.
The mounting piece 16 and the base ends of the inclined plates 3 and 4 are rotatably connected by pins 17.
【００１３】図４は、長板８，９とアーム６，７の長孔
１０，１１との関係を示す図であり、ここでは一方側の
みを示すが、他方側でも同様の構成である。長孔１０に
はピン１２が長孔１０内を移動可能に設けてあり、この
ピン１２の一端側は長板８に設けた取付部１８に対し回
動可能にかつ軸方向に抜けないように設けてある。FIG. 4 is a view showing the relationship between the long plates 8, 9 and the long holes 10, 11 of the arms 6, 7, wherein only one side is shown here, but the other side has the same configuration. A pin 12 is provided in the elongated hole 10 so as to be movable in the elongated hole 10, and one end of the pin 12 is rotatable with respect to a mounting portion 18 provided in the elongated plate 8 so as not to come off in the axial direction. It is provided.
【００１４】図５は、長板８，９の基端側の回動部分の
一例を示す図であり、傾斜板３，４には取付部１９を形
成してあり、この取付部１９に対し、長板８，９の切欠
個所を重ね合わせ、ピン２０で長板８，９が傾斜板３，
４に対し回動可能になるように構成してある。アーム
６，７の一端側と傾斜板３，４との取付けも図５に示す
と同様の構成を採用している。FIG. 5 is a view showing an example of a rotating portion on the base end side of the long plates 8 and 9. A mounting portion 19 is formed on the inclined plates 3 and 4. The notches of the long plates 8 and 9 are overlapped, and the long plates 8 and 9 are
4 so as to be rotatable. The same configuration as that shown in FIG. 5 is employed for attaching one end of the arms 6, 7 to the inclined plates 3, 4.
【００１５】図６は、所定間隔で設けた支柱２１の間に
壁パネル２２を取付けて本体壁２３を構成し、この本体
壁２３の上端に並列して防音ユニット１を複数取付けた
状態を示すものである。支柱２１としてはＨ鋼を用い
た。これらＨ鋼から成る支柱２１のコ字状の間隙に壁パ
ネル２２を上から落とし込んで本体壁２３を形成した。
また、本体壁２３の長さ方向に複数並列状態で連結され
た防音ユニット１は、支柱２１の上端側に取付けられ
る。FIG. 6 shows a state in which a wall panel 22 is mounted between columns 21 provided at predetermined intervals to form a main body wall 23, and a plurality of soundproof units 1 are mounted in parallel on the upper end of the main body wall 23. Things. H steel was used as the support 21. The main body wall 23 was formed by dropping the wall panel 22 from above into the U-shaped gap between the columns 21 made of H steel.
A plurality of soundproof units 1 connected in parallel in the length direction of the main body wall 23 are attached to the upper end of the column 21.
【００１６】図７は、防音ユニット１のメインフレーム
２の垂直部２Ａ，２Ｂを固着するための取付具を示し、
支柱２１の間に亘って延びる側面Ｖ字型のＶ字金具２４
と、このＶ字金具２４の両端側に位置してＨ鋼に固着さ
れる脚部２５とを備えている。FIG. 7 shows a fixture for fixing the vertical portions 2A, 2B of the main frame 2 of the soundproof unit 1,
Side V-shaped V-shaped bracket 24 extending between columns 21
And leg portions 25 positioned on both ends of the V-shaped bracket 24 and fixed to the H steel.
【００１７】上述した防音ユニット１はプラスチック材
料を射出成形等の手段により一体成形することにより、
大量にかつ安価に提供することができるが、プラスチッ
ク材料以外にもステンレススチールやアルミニウム等の
金属材料で形成しても差し支えない。また、傾斜板３，
４の内外面や長板８，９の内面に吸音材を取付けること
もできる。The above soundproof unit 1 is formed by integrally molding a plastic material by means such as injection molding.
Although it can be provided in large quantities and at low cost, it may be formed of a metal material such as stainless steel or aluminum other than the plastic material. Also, the inclined plate 3,
A sound-absorbing material can be attached to the inner and outer surfaces of 4 and the inner surfaces of long plates 8 and 9.
【００１８】図８は、防音ユニット１を本体壁２３の上
端に取付けた防音壁における上端側の音の伝播を説明す
るものである。従来の防音壁に比べて再分岐壁８０，９
０の存在により回析音は低減される。２５０Ｈｚオクタ
ーブバンドの騒音発生時の音圧分布は図９に示し、音響
インテンシティの分布は図１０に示す。図９の数値の単
位はｄＢである。図１０の矢印方向は音のエネルギーの
流れる方向を示し、矢印の長さが長いほど音のエネルギ
ーが大きいことを示している。FIG. 8 explains the sound propagation on the upper end side of the soundproof wall where the soundproof unit 1 is mounted on the upper end of the main body wall 23. Re-branch walls 80 and 9 compared to conventional soundproof walls
The diffraction sound is reduced by the presence of 0. FIG. 9 shows a sound pressure distribution when a 250 Hz octave band noise is generated, and FIG. 10 shows a sound intensity distribution. The unit of the numerical value in FIG. 9 is dB. The direction of the arrow in FIG. 10 indicates the direction in which the sound energy flows, and the longer the length of the arrow, the greater the sound energy.
【００１９】図１１はこの防音ユニット１を本体壁２３
の上端部に取付けた状態における減音量（ｄＢ）を計測
する方法を示し、３．５ｍの段差のついた盛土の道路５
０の端に夫々の防音壁を長さ１００ｍにわたって設置し
て防音効果を測定した。防音壁から４．５ｍ離れた道路
５０上にスピーカー５１を設置し、２５０Ｈｚ，５００
Ｈｚ，１ＫＨｚ，２ＫＨｚ，４ＫＨｚのオクターブバン
ドの音を発生させ、道路５０の端から２０ｍ離れ、地面
から１．２ｍの高さにマイクロフォン５２を設置して騒
音レベルを測定した。防音壁としては、地上から高さ
２．５ｍの本体壁２３のみから成る直壁タイプを比較例
とし、この比較例に対し防音ユニット１を設けた全高
２．５ｍの防音壁を実施例として、各周波数における減
音量を比較した。その結果、実施例は直壁タイプに比較
して２５０Ｈｚにおいて２ｄＢ、５００Ｈｚにおいて５
ｄＢ、１ＫＨｚ，２ＫＨｚ，４ＫＨｚの夫々において６
ｄＢの減音効果があった。FIG. 11 shows this soundproofing unit 1 attached to the main body wall 23.
Shows a method of measuring the sound reduction (dB) in a state where the road is attached to the upper end portion of a road 5 of an embankment having a step of 3.5 m.
Each soundproof wall was installed at the end of 0 over a length of 100 m, and the soundproofing effect was measured. A speaker 51 is installed on a road 50 that is 4.5 m away from the noise barrier,
A sound of an octave band of Hz, 1 KHz, 2 KHz, and 4 KHz was generated, and a microphone 52 was installed at a distance of 20 m from the end of the road 50 and at a height of 1.2 m from the ground to measure a noise level. As a soundproof wall, a straight wall type including only a main body wall 23 having a height of 2.5 m from the ground is used as a comparative example, and a soundproof wall having a total height of 2.5 m provided with a soundproof unit 1 is used as an example. The sound reduction at each frequency was compared. As a result, the embodiment is 2 dB at 250 Hz and 5 at 500 Hz as compared with the straight wall type.
6 dB at each of 1 kHz, 2 kHz, and 4 kHz
There was a noise reduction effect of dB.
【００２０】一般的に音の回析点の音圧レベルが小さく
なれば、回析音は弱くなる。実施例では、図１２に示す
ように、音源と反対側の分岐壁４０から再分岐した再分
岐壁９０の先端では音源から回り込んだ音波ａが第２の
分岐壁４０で反射された音波ｂと干渉して或る周波数で
は極めて音圧レベルが小さくなり、最終的な回析音が激
減する。また、図１３に示すように、或る周波数でエネ
ルギー流が受音点側から音源側に向かう渦となり、騒音
低減効果が生ずる、と考えられる。Generally, the smaller the sound pressure level at the diffraction point of a sound, the weaker the diffraction sound. In the embodiment, as shown in FIG. 12, at the tip of the re-branching wall 90 re-branched from the branch wall 40 on the side opposite to the sound source, the sound wave a wrapping around from the sound source is reflected by the second branch wall 40. At a certain frequency, the sound pressure level becomes extremely low, and the final diffracted sound is drastically reduced. Further, as shown in FIG. 13, it is considered that the energy flow becomes a vortex at a certain frequency from the sound receiving point side to the sound source side, and a noise reduction effect occurs.
【００２１】[0021]
【発明の効果】以上説明したように、この発明によれ
ば、組立前には傾斜板を折り畳んでおくことができ、嵩
張らず保管や運搬に便利となり、現場で本体壁の上端部
に施工するときには、傾斜板を開いてアームをメインフ
レームに固着すれば、簡単に分岐壁が形成できる。ま
た、メインフレームを利用して本体壁の上端部に容易に
取付けることができる。さらに、分岐壁を形成する傾斜
板のみならず、再分岐壁を形成する長板を開閉可能に設
けておくことにより、傾斜板を開くだけでこの長板も傾
斜板上で立ち上がることができ、施工が容易かつ迅速に
行える。As described above, according to the present invention, the inclined plate can be folded before assembling, it is not bulky and convenient for storage and transportation, and can be installed on the upper end of the main body wall at the site. At times, the branch wall can be easily formed by opening the inclined plate and fixing the arm to the main frame. In addition, the main frame can be easily attached to the upper end of the main body wall. Furthermore, by providing not only the inclined plate forming the branch wall but also a long plate forming the re-branch wall so as to be openable and closable, only by opening the inclined plate, this long plate can also rise on the inclined plate, Easy and quick construction.
【図１】この発明の好適な実施例を示す斜視図。FIG. 1 is a perspective view showing a preferred embodiment of the present invention.
【図２】アームとガイド部の関係を示す一部断面の平面
図。FIG. 2 is a plan view of a partial cross section showing a relationship between an arm and a guide unit.
【図３】傾斜板基端側の取付例を示す平面図。FIG. 3 is a plan view showing an example of attachment on the base end side of the inclined plate.
【図４】長板の取付例を示す断面図。FIG. 4 is a sectional view showing an example of mounting a long plate.
【図５】長板の傾斜板との取付例を示す断面図。FIG. 5 is a sectional view showing an example of attachment of a long plate to an inclined plate.
【図６】この防音ユニットを組立てた状態の防音壁の正
面図。FIG. 6 is a front view of the soundproof wall in a state where the soundproof unit is assembled.
【図７】防音ユニットの取付具を示す断面図。FIG. 7 is a cross-sectional view showing an attachment for the soundproof unit.
【図８】防音ユニットの個所における音の伝播を説明す
る図。FIG. 8 is a view for explaining sound propagation at a location of the soundproofing unit.
【図９】騒音発生時の音圧分布図。FIG. 9 is a sound pressure distribution diagram when noise is generated.
【図１０】音響インテンシティの分布図。FIG. 10 is a distribution diagram of sound intensity.
【図１１】騒音測定試験方法を説明する図。FIG. 11 is a diagram illustrating a noise measurement test method.
【図１２】音波の干渉を説明する図。FIG. 12 illustrates interference of sound waves.
【図１３】音波の渦を説明する図。FIG. 13 is a diagram illustrating a vortex of a sound wave.
１ 防音ユニット ２ メインフレーム ３，４ 傾斜板 ６，７ アーム ８，９ 長板 １０，１１ 長孔 １２，１３ ピン ２１ 支柱 ２２ 壁パネル ２３ 本体壁 ３０，４０ 分岐壁 ８０，９０ 再分岐壁 DESCRIPTION OF SYMBOLS 1 Soundproofing unit 2 Main frame 3,4 Inclined plate 6,7 Arm 8,9 Long plate 10,11 Long hole 12,13 Pin 21 Support 22 Wall panel 23 Body wall 30,40 Branch wall 80,90 Re-branch wall
フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｇ１０Ｋ 11/178 Continued on the front page (51) Int.Cl. 6 Identification code Agency reference number FI Technical display location G10K 11/178
Claims (2)
ルを取付けて本体壁を構成し、この本体壁の上端にＶ字
型の第１及び第２の分岐壁を形成するための防音ユニッ
トであって、 中央のメインフレームの下側に一対の傾斜板の基端を回
動可能に取付け、 メインフレームの垂直部に上下方向に亘ってガイド部を
形成し、 一対の傾斜板の先端に夫々アームの一端を回動可能に取
付け、 これらアームの他端を上記ガイド部に上下動可能に取付
け、 一対の傾斜板をメインフレームに向けて回動させて折り
畳み可能にするとともに、メインフレームから離れてア
ーム他端がガイド部上端まで移動して一対の傾斜板が開
いて分岐壁を形成することを特徴とする防音ユニット。1. A soundproof panel for mounting a wall panel between pillars provided at a predetermined interval to form a main body wall, and forming V-shaped first and second branch walls at an upper end of the main body wall. A unit, wherein the base ends of a pair of inclined plates are rotatably mounted below the central main frame, and a guide portion is formed in a vertical portion of the main frame in a vertical direction, and a tip of the pair of inclined plates is provided. The other end of each arm is rotatably mounted on the guide portion, and the other end of each arm is rotatably mounted on the guide portion. A soundproof unit characterized in that the other end of the arm moves away from the upper end to the upper end of the guide portion and the pair of inclined plates opens to form a branch wall.
に亘る長さの長板の基端を回動可能に取付け、これら長
板の先端側をアームに形成された長孔内を移動するピン
に回動可能に取付け、傾斜板の折り畳み時にピンが長孔
のメインフレーム寄りに移動して長板を傾斜板に向けて
倒して両者を重ね合わせ、傾斜板を開いた時にピンが長
孔のメインフレームから離れる方向に移動して長板を傾
斜板上で立ち上がらせて再分岐壁を形成することを特徴
とする請求項１に記載の防音ユニット。2. A base plate of a long plate extending in the width direction of the inclined plate is rotatably attached to each inner surface of the pair of inclined plates, and the distal ends of these long plates are formed in an elongated hole formed in the arm. Pivotally attached to the moving pin, when the inclined plate is folded, the pin moves toward the main frame of the long hole, the long plate is turned down toward the inclined plate, and the two are overlapped, and the pin is opened when the inclined plate is opened. The soundproofing unit according to claim 1, wherein the arm moves in a direction away from the main frame of the elongated hole to cause the elongated plate to rise on the inclined plate to form a re-branching wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18870496A JP3618914B2 (en) | 1996-06-28 | 1996-06-28 | Soundproof unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18870496A JP3618914B2 (en) | 1996-06-28 | 1996-06-28 | Soundproof unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1018469A true JPH1018469A (en) | 1998-01-20 |
| JP3618914B2 JP3618914B2 (en) | 2005-02-09 |
Family
ID=16228355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18870496A Expired - Lifetime JP3618914B2 (en) | 1996-06-28 | 1996-06-28 | Soundproof unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3618914B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045406A (en) * | 2022-04-27 | 2022-09-13 | 华能桐乡燃机热电有限责任公司 | Noise prevention structure for main plant of gas turbine power plant |
-
1996
- 1996-06-28 JP JP18870496A patent/JP3618914B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045406A (en) * | 2022-04-27 | 2022-09-13 | 华能桐乡燃机热电有限责任公司 | Noise prevention structure for main plant of gas turbine power plant |
| CN115045406B (en) * | 2022-04-27 | 2024-01-23 | 华能桐乡燃机热电有限责任公司 | A noise control structure for gas turbine power plant main building |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3618914B2 (en) | 2005-02-09 |
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