JP4416348B2

JP4416348B2 - Sound barrier

Info

Publication number: JP4416348B2
Application number: JP2001096505A
Authority: JP
Inventors: 眞義野村
Original assignee: Nippon Steel Metal Products Co Ltd
Current assignee: Nippon Steel Metal Products Co Ltd
Priority date: 2001-03-29
Filing date: 2001-03-29
Publication date: 2010-02-17
Anticipated expiration: 2021-03-29
Also published as: JP2002294637A

Description

【０００１】
【発明の属する技術分野】
この発明は、自動車等から放射される騒音と回折音とを干渉させて、前記騒音を減音する防音壁の技術分野に属する。
【０００２】
【従来の技術】
（１）騒音と回折音とを干渉させて、前記騒音を減音する防音壁の代表例として、例えば特許第２８６５２７５号公報に記載された防音壁が挙げられる。
この防音壁は、防音壁の上端に騒音源側及び民地側の双方へ傾斜する分岐壁が設けられ、更に前記分岐壁の上端に騒音源側及び民地側へ傾斜する分岐壁も設けられて構成されている。自動車等から放射された騒音は分岐壁に沿って回折させ、そのエネルギーを減少させて減音すると共に、この回折音と騒音とを干渉させて減音する。
【０００３】
（２）また、類似技術として特許第２７６６６００号公報、特許第２８６０４６２号公報、特許第３０４５０２９号公報、特公昭５８−４２３２４号公報、特開平１１−３５０４３５号公報、特開昭６２−１６０３０４号公報等に記載された防音壁を挙げることができる。原理的には上記した特許第２８６５２７５号公報に記載の防音壁と同様である。
【０００４】
【本発明が解決しようとする課題】
上記（１）の防音壁は、分岐壁が民地側へ張り出した構成とされているため、取り付け箇所によっては建築境界を越えてしまう不具合があるほか、景観性も悪い。
【０００５】
また、防音壁には直線部以外の伸縮部分、拡幅部分、標識部分等の特殊部分が多くあり、上記従来の防音壁は分岐壁等と常に一体に構成されているため、前記特殊部分へ設置するには構成が複雑に過ぎて製造及び組立てが面倒であり、コストが嵩む欠点が認められる。
【０００６】
従って、本発明の目的は、製造及び組立てないし既存防音壁への取付けが簡単な構成として、コストの削減を図ると共に、民地側には決して張り出さない構成の防音壁を提供することである。
【０００７】
【課題を解決するための手段】
上記従来技術の課題を解決するための手段として、請求項１に記載した発明に係る防音壁は、
防音壁の上端から騒音源側へほぼ水平に配置された水平遮音部材と、前記水平遮音部材より下方の防音壁前面から同じく騒音源側へ斜め上方へ傾斜して配置された斜め遮音部材と、前記二つの遮音部材の間に挟まれた防音壁の前面に沿って配置された反転部材とが設置され、前記水平遮音部材と斜め遮音部材及び反転部材で囲み部が形成されていること、
前記囲み部は、水平遮音部材の先端部と斜め遮音部材の先端部とで形成する開口部を有し、前記開口部から進入した騒音を反転部材に衝突させて位相反転させ、進入してくる騒音と干渉させることによって減音効果を得る構成であることを特徴とする。
【０００８】
請求項２記載の発明は、請求項１に記載した発明に係る防音壁において、
斜め遮音部材は、その先端部が水平遮音部材の略延長線上に到達する長さに配置され、前記水平遮音部材の略延長線上に囲み部の開口部が形成されていることを特徴とする。
【０００９】
請求項３記載の発明は、請求項１に記載した発明に係る防音壁において、
水平遮音部材は、その先端部が斜め遮音部材の略延長線上に到達する長さに配置され、前記斜め遮音部材の略延長線上に囲み部の開口部が形成されていることを特徴とする。
【００１０】
請求項４記載の発明は、請求項１に記載した発明に係る防音壁において、
水平遮音部材の先端部及び斜め遮音部材の先端部は、それぞれの延長線同士の交点より手前側に位置し、囲み部の開口部が垂直面状に形成されていることを特徴とする。
【００１１】
請求項５記載の発明は、請求項１〜４のいずれか一に記載した発明に係る防音壁において、
水平遮音部材と斜め遮音部材及び反転部材は、一枚の板材で成形されていることを特徴とする。
【００１２】
請求項６記載の発明は、請求項５に記載した発明に係る防音壁において、
水平遮音部材と斜め遮音部材及び反転部材は、金属板であることを特徴とする。
【００１３】
請求項７記載の発明は、請求項５に記載した発明に係る防音壁において、
水平遮音部材と斜め遮音部材及び反転部材は、合成樹脂製の透光性部材であることを特徴とする。
【００１４】
請求項８記載の発明は、請求項１〜７のいずれか一に記載した発明に係る防音壁において、
斜め遮音部材に補強エンボスが設けられていることを特徴とする。
【００１５】
請求項９記載の発明は、請求項１〜８のいずれか一に記載した発明に係る防音壁において、
水平遮音部材と斜め遮音部材及び反転部材は、取付け部材により防音壁の上端部へ設置されていることを特徴とする。
【００１６】
【本発明の実施形態、及び実施例】
図１は、請求項１及び２に記載した発明の実施形態を示している。
【００１７】
この防音壁は、道路に沿って騒音源側Ａと民地側Ｂとの境界に設置された防音壁１を基本構造とし、同防音壁１の上端から騒音源側Ａ（図１の左側方向）へほぼ水平に配置された水平遮音部材２と、前記水平遮音部材２より下方の防音壁１の前面から同じく騒音源側Ａへ斜め上方へ傾斜して配置された斜め遮音部材３と、前記二つの遮音部材２、３の間に挟まれた防音壁１の前面に沿って配置された反転部材４とが設置されていることを特徴とする。
【００１８】
前記水平遮音部材２と斜め遮音部材３及び反転部材４は、一例として１枚の金属板の折り曲げ加工で成形されており（請求項５及び６記載の発明）、前記水平遮音部材２と斜め遮音部材３及び反転部材４で囲み部５が形成されている。
【００１９】
前記囲み部５は、水平遮音部材２の先端部２ａと斜め遮音部材３の先端部３ａとで形成する開口部６を有している。特に図１の場合、前記斜め遮音部材３はその先端部３ａが水平遮音部材２の略延長線上に到達する長さに配置され、前記水平遮音部材２の略延長線上に、上向きの開口部６が形成されている（請求項２記載の発明）。
【００２０】
前記開口部６を有する囲み部５は、斜め遮音部材３の先端部３ａを回折して開口部６から進入した騒音ａを反転部材４に衝突させて位相反転させ、水平遮音部材２の先端部２ａ近傍から進入してくる騒音ｂと干渉させることによって減音効果を得るのである（図１を参照）。即ち、斜め遮音部材３が、開口部６から回折して進入する騒音ａのガイド部材となり、前記騒音ａを反転部材４に衝突させて位相反転させる。次に水平遮音部材２が前記のように位相反転した騒音ａ’のガイド部材となり、前記騒音ａ’を開口部６の方へ誘導する。そのため、前記騒音ａ’と新たに開口部６から進入する騒音ｂとが確実に干渉を起こして、騒音ａ’、ｂが減音されることは既に理論的に知られた事実である。また、先に進入した騒音ａは囲み部５の中を回折することによりエネルギーが減少し、騒音ａそのものが減音することも既に知られている。
【００２１】
このように本発明は、水平遮音部材２と斜め遮音部材３及び反転部材４で開口部６を有する囲み部５を形成するだけで、減音効果の高い防音壁を構成することができる。勿論、前記の構成は製造と組立てが簡単である。
【００２２】
上述したように、水平遮音部材２と斜め遮音部材３及び反転部材４を、１枚の金属板の折り曲げ加工で成形することによって、コストの削減に大いに寄与する（請求項５記載の発明）。
【００２３】
従って、防音壁１が直線部以外の伸縮部分、拡幅部分、標識部分等の特殊部分であっても容易に対処でき、簡易に組立てて実施することができる。
【００２４】
また、前記水平遮音部材２と斜め遮音部材３及び反転部材４は、同一の資材で製造することに適した構造である。よって、上述したように１枚の金属板で成形すると、リサイクルし易い部材を提供することができ、産業廃棄物を軽減することができ、コストの削減に寄与する（請求項６記載の発明）。
【００２５】
しかも、民地側に張り出さない構成であるため、建築境界から防音壁が張り出す虞がない。
【００２６】
次に、図２は、請求項１及び３に記載した発明の実施形態を示している。
【００２７】
この防音壁も、道路に沿って騒音源側Ａと民地側Ｂとの境界に設置された防音壁１を基本構造とし、同防音壁１の上端から騒音源側Ａ（図２の左側方向）へほぼ水平に配置された水平遮音部材２と、前記水平遮音部材２より下方の防音壁１の前面から同じく騒音源側Ａへ斜め上方へ傾斜して配置された斜め遮音部材３と、前記二つの遮音部材２、３の間に挟まれた防音壁１の前面に沿って配置された反転部材４とが設置されていることを特徴とする。
【００２８】
前記水平遮音部材２と斜め遮音部材３及び反転部材４も、一例として１枚の金属板の折り曲げ加工で成形されており（請求項５及び６記載の発明）、前記水平遮音部材２と斜め遮音部材３及び反転部材４で囲み部５が形成され、前記囲み部５は、水平遮音部材２の先端部２ａと斜め遮音部材３の先端部３ａとで形成する開口部６を有している。
【００２９】
但し、図２の場合、前記水平遮音部材２は、その先端部２ａが斜め遮音部材３の略延長線上に到達する長さに配置され、前記斜め遮音部材３の略延長線上に、斜め下方に向いた開口部６が形成されていることが特徴である（請求項３記載の発明）。
【００３０】
前記開口部６を有する囲み部５は、図１の実施形態と同様に、斜め遮音部材３の先端部３ａを回折して開口部６から進入した騒音ａを反転部材４に衝突させて位相反転させ、水平遮音部材２の先端部２ａ近傍から進入してくる騒音ｂと干渉させることによって減音効果を得るのである（図２を参照）。即ち、本実施形態でも斜め遮音部材２が開口部６から回折して進入する騒音ａのガイド部材となり、前記騒音ａを反転部材４に衝突させて位相反転させる。次に水平遮音部材２が前記のように位相反転した騒音ａ’のガイド部材となり、前記騒音ａ’を開口部６の方へ誘導する。そのため、前記騒音ａ’と新たに開口部６から進入する騒音ｂとが確実に干渉を起こして、騒音ａ’、ｂが減音されるのである。また、先に進入した騒音ａは囲み部５の中を回折することによりエネルギーが減少し、騒音ａそのものが減音することも図１の実施形態と同様である。
【００３１】
このように本発明も、水平遮音部材２と斜め遮音部材３及び反転部材４で開口部６を有する囲み部５を形成するだけで、減音効果の高い防音壁を構成することができる。勿論、水平遮音部材２と斜め遮音部材３及び反転部材４を、１枚の金属板の折り曲げ加工で成形することによって、製造の簡易化及び産業廃棄物の軽減化を図ることができ、コストの削減に寄与する（請求項５及び６記載の発明）。しかも、防音壁１が直線部以外の伸縮部分、拡幅部分、標識部分等の特殊部分であっても容易に対処でき、簡単に組立てて実施することができる。
【００３２】
もちろん、民地側に張り出さない構成であるため、建築境界から防音壁が張り出す虞がない。
【００３３】
図３は、請求項１及び４に記載した発明の実施形態を示している。
【００３４】
この防音壁も、道路に沿って騒音源側Ａと民地側Ｂとの境界に設置された防音壁１を基本構造とし、同防音壁１の上端から騒音源側Ａ（図３の左側方向）へほぼ水平に配置された水平遮音部材２と、前記水平遮音部材２より下方の防音壁１の前面から同じく騒音源側Ａへ斜め上方へ傾斜して配置された斜め遮音部材３と、前記二つの遮音部材２、３の間に挟まれた防音壁１の前面に沿って配置された反転部材４とが設置された構成を特徴とする。
【００３５】
前記水平遮音部材２と斜め遮音部材３及び反転部材４も、やはり１枚の金属板の折り曲げ加工で成形されており（請求項５及び６記載の発明）、前記水平遮音部材２と斜め遮音部材３及び反転部材４で囲み部５が形成され、囲み部５は、水平遮音部材２の先端部２ａと斜め遮音部材３の先端部３ａとで形成する開口部６を有している。
【００３６】
特に図３の場合、前記水平遮音部材２の先端部２ａ及び斜め遮音部材３の先端部３ａは、それぞれの延長線同士の交点よりもかなり手前に位置し、囲み部５の開口部６が垂直面状に形成されている（請求項４記載の発明）。
【００３７】
前記開口部６を有する囲み部５は、図１及び図２の実施形態と同様に、斜め遮音部材３の先端部３ａを回折して開口部６から進入した騒音ａを反転部材４に衝突させて位相反転させ、水平遮音部材２の先端部２ａ近傍から進入してくる騒音ｂと干渉させることによって減音効果を得るのである（図３を参照）。即ち、ガイド部材である斜め遮音部材３が、開口部６から進入する騒音ａを反転部材４に衝突させ位相反転させる。次にガイド部材である水平遮音部材２が前記のように位相反転した騒音ａ’を開口部６の方へ誘導し、前記位相反転した騒音ａ’と新たに開口部６から進入する騒音ｂとを干渉させる。
【００３８】
このように本発明は、水平遮音部材２と斜め遮音部材３及び反転部材４で開口部６を有する囲み部５を形成するだけで、減音効果の高い防音壁を構成することができる。勿論、水平遮音部材２と斜め遮音部材３及び反転部材４を、１枚の金属板の折り曲げ加工で成形することによって、製造の簡易化及び産業廃棄物の軽減化を図ることができ、コストの削減に寄与する（請求項５及び６記載の発明）。しかも、前記のように簡単な構成なので防音壁１が直線部以外の伸縮部分、拡幅部分、標識部分等の特殊部分であっても、容易に対処でき、簡単に組立てて実施することができる。
【００３９】
もちろん、民地側に張り出さない構成とされているため、建築境界から防音壁が張り出す虞がない。
【００４０】
なお、上記の各実施形態では、防音壁１と開口部６を有する囲み部５を形成する水平遮音部材２と斜め遮音部材３及び反転部材４が、１枚の板材で一体に構成された例を説明したが、この限りではない。即ち、前記水平遮音部材２と斜め遮音部材３及び反転部材４をそれぞれ独立した３枚の板材の組み合わせで構成しても同様に実施できる。
【００４１】
また、上記した実施形態では、水平遮音部材２と斜め遮音部材３及び反転部材４が金属板から成形されているが、この限りではない。即ち、前記水平遮音部材２と斜め遮音部材３及び反転部材４が、合成樹脂製の透光性部材から成形されても同様に実施できる（請求項７記載の発明）。よって、透光性部材で構成した防音壁１の上部に、水平遮音部材２と斜め遮音部材３及び反転部材４を設置しても、視界が遮られることがなく、また景観性もよい。
【００４２】
更に、上記実施形態では、斜め遮音部材３に補強部材が設けられていないが、斜め遮音部材３に補強エンボスを設けて実施することも好ましい（請求項８記載の発明）。前記補強エンボスが設けられることで、より簡単に斜め遮音部材３を防音壁１に設置することができるからである。
【００４３】
次に、図４は、前記水平遮音部材２と斜め遮音部材３及び反転部材４が、共通の取付け部材７を利用して防音壁１の上端部へ設置された実施形態を示している（請求項９記載の発明）。
【００４４】
具体的には、前記反転部材４の上端から水平遮音部材２と一連の構成で民地側Ｂへ逆Ｌ字形状に形成された２個を一組とした取付け部材７、７が、複数組一定の間隔Ｌ（約２〜３ｍ）で一体的に形成されている。前記反転部材４と取付け部材７とが形成する下向きにコ字形の嵌め込み部８を防音壁１の上端部へ嵌め込み、ボルト等で固定して（図示を省略）防音壁が構成されている。
【００４５】
従って、既存又は新設の防音壁１へ、水平遮音部材２と斜め遮音部材３及び反転部材４のセットを簡単に取付けることができる。
【００４６】
なお、本実施形態では、図１の実施形態と同様に開口部６が上向きに形成されているが、図２及び図３の実施形態についても同様に取付け部材７が設けられ防音壁１への取付けが行われる。
【００４７】
また、取付け部材７は、２個を一組として構成されているが、個数は限定されない。
【００４８】
【本発明の奏する効果】
請求項１〜９に記載した防音壁は、防音壁の上部において騒音源側へ配置された水平遮音部材と斜め遮音部材及び反転部材で開口部を有する囲み部を形成するだけで、減音効果の高い防音壁を構成することができ、製造が簡単でコストの削減に寄与する。また、前記防音壁の形状が直線部以外の伸縮部分、拡幅部分、標識部分等の特殊部分であっても、容易に対処でき、簡単に組立てて実施することができる。
【００４９】
前記水平遮音部材と斜め遮音部材及び反転部材のセットを、取付け部材で既存又は新設の防音壁へ簡単に取付けることができる。
【００５０】
更に、前記水平遮音部材と斜め遮音部材及び反転部材を同一の資材で製造することができ、リサイクルし易く産業廃棄物を軽減することができ、やはりコストの削減に寄与する。
【００５１】
しかも、民地側に張り出さない構成とされているため、建築境界から防音壁が張り出す虞がない。
【図面の簡単な説明】
【図１】請求項１及び２に記載した発明に係る防音壁の実施形態を示した立面図である。
【図２】請求項１及び３に記載した発明に係る防音壁の実施形態を示した立面図である。
【図３】請求項１及び４に記載した発明に係る防音壁の実施形態を示した立面図である。
【図４】請求項９に記載した発明に係る防音壁の実施形態を示した立面図である。
【符号の説明】
１、防音壁
２水平遮音部材
２ａ、３ａ先端部
３斜め遮音部材
４反転部材
５囲み部
６開口部
７取付け部材
Ａ騒音源側
Ｂ民地側
ａ、ａ’、ｂ騒音[0001]
BACKGROUND OF THE INVENTION
The present invention belongs to the technical field of a soundproof wall that reduces noise by causing noise emitted from an automobile or the like to interfere with diffracted sound.
[0002]
[Prior art]
(1) As a typical example of a soundproof wall that reduces noise by causing noise and diffracted sound to interfere with each other, for example, a soundproof wall described in Japanese Patent No. 2865275 can be cited.
This soundproof wall is provided with a branch wall inclined at both the noise source side and the private side at the upper end of the soundproof wall, and further provided with a branch wall inclined at the noise source side and the private side at the upper end of the branch wall. Configured. Noise radiated from an automobile or the like is diffracted along the branch wall, and the energy is reduced to reduce the sound, and the diffracted sound and the noise are interfered to reduce the sound.
[0003]
(2) As similar techniques, Japanese Patent No. 2766600, Japanese Patent No. 2860462, Japanese Patent No. 3045029, Japanese Patent Publication No. 58-42324, Japanese Patent Application Laid-Open No. 11-350435, Japanese Patent Application Laid-Open No. 62-160304 And the like described in the above. The principle is the same as that of the soundproof wall described in Japanese Patent No. 2865275.
[0004]
[Problems to be solved by the present invention]
The soundproof wall of (1) above has a structure in which the branch wall projects to the private side, so that there is a problem that the building boundary may be exceeded depending on the installation location, and the landscape is also poor.
[0005]
In addition, there are many special parts such as stretchable parts, widened parts, sign parts, etc. other than straight parts in the soundproof wall, and the conventional soundproof wall is always constructed integrally with the branch wall etc., so it is installed in the special part Therefore, the construction is too complicated, and the manufacturing and assembly are troublesome, and the disadvantage of increasing the cost is recognized.
[0006]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a soundproof wall having a structure that is easy to manufacture, assemble, or attach to an existing soundproof wall, reduces costs, and never protrudes to the private side. .
[0007]
[Means for Solving the Problems]
As a means for solving the above-mentioned problems of the prior art, the soundproof wall according to the invention described in claim 1 is:
A horizontal sound insulation member arranged substantially horizontally from the upper end of the sound insulation wall to the noise source side, and an oblique sound insulation member arranged to be inclined obliquely upward from the front surface of the sound insulation wall below the horizontal sound insulation member to the noise source side, and A reversing member disposed along the front surface of the soundproof wall sandwiched between the two sound insulation members, and a surrounding portion is formed by the horizontal sound insulation member, the diagonal sound insulation member and the reversal member,
The surrounding portion has an opening formed by a front end portion of the horizontal sound insulation member and a front end portion of the oblique sound insulation member, and the noise that has entered from the opening portion collides with the reversing member to reverse the phase and enter. The present invention is characterized in that a sound reduction effect is obtained by interfering with noise.
[0008]
According to a second aspect of the present invention, in the soundproof wall according to the first aspect of the present invention,
The oblique sound insulation member is arranged in such a length that a tip portion thereof reaches a substantially extension line of the horizontal sound insulation member, and an opening of a surrounding part is formed on the substantially extension line of the horizontal sound insulation member.
[0009]
The invention described in claim 3 is the soundproof wall according to the invention described in claim 1,
The horizontal sound-insulating member is arranged such that the front end of the horizontal sound-insulating member reaches a substantially extended line of the oblique sound-insulating member, and an opening of a surrounding part is formed on the substantially extended line of the oblique sound-insulating member.
[0010]
According to a fourth aspect of the present invention, in the soundproof wall according to the first aspect of the present invention,
The front end portion of the horizontal sound insulation member and the front end portion of the oblique sound insulation member are located on the near side from the intersection of the respective extension lines, and the opening of the surrounding portion is formed in a vertical plane.
[0011]
The invention according to claim 5 is the soundproof wall according to the invention according to any one of claims 1 to 4,
The horizontal sound insulation member, the oblique sound insulation member, and the reversing member are formed of a single plate material.
[0012]
According to a sixth aspect of the present invention, in the soundproof wall according to the fifth aspect of the present invention,
The horizontal sound insulating member, the oblique sound insulating member, and the reversing member are metal plates.
[0013]
The invention according to claim 7 is the sound barrier according to the invention described in claim 5,
The horizontal sound insulating member, the oblique sound insulating member and the reversing member are light-transmitting members made of synthetic resin.
[0014]
The invention according to claim 8 is a soundproof wall according to any one of claims 1 to 7,
The oblique sound insulation member is provided with a reinforcing emboss.
[0015]
The invention according to claim 9 is the soundproof wall according to the invention according to any one of claims 1 to 8,
The horizontal sound insulation member, the oblique sound insulation member, and the reversing member are installed on the upper end portion of the soundproof wall by an attachment member.
[0016]
[Embodiments and Examples of the Present Invention]
FIG. 1 shows an embodiment of the invention described in claims 1 and 2.
[0017]
This soundproof wall has a soundproof wall 1 installed at the boundary between the noise source side A and the private side B along the road as a basic structure, and from the upper end of the soundproof wall 1 to the noise source side A (leftward direction in FIG. 1) The horizontal sound insulation member 2 disposed substantially horizontally to the sound source, the oblique sound insulation member 3 disposed obliquely upward from the front surface of the sound insulation wall 1 below the horizontal sound insulation member 2 to the noise source side A, and A reversing member 4 disposed along the front surface of the soundproof wall 1 sandwiched between two sound insulating members 2 and 3 is provided.
[0018]
The horizontal sound insulating member 2, the oblique sound insulating member 3 and the reversing member 4 are formed by bending a single metal plate as an example (the inventions according to claims 5 and 6), and the horizontal sound insulating member 2 and the oblique sound insulating member. A surrounding portion 5 is formed by the member 3 and the reversing member 4.
[0019]
The surrounding portion 5 has an opening 6 formed by the distal end portion 2 a of the horizontal sound insulating member 2 and the distal end portion 3 a of the oblique sound insulating member 3. In particular, in the case of FIG. 1, the oblique sound insulation member 3 is arranged in such a length that the tip end portion 3 a reaches the substantially extension line of the horizontal sound insulation member 2, and the upward opening 6 on the substantially extension line of the horizontal sound insulation member 2. Is formed (invention of claim 2).
[0020]
The surrounding portion 5 having the opening 6 diffracts the front end portion 3 a of the oblique sound insulating member 3, causes the noise a entering from the opening 6 to collide with the reversing member 4 and reverse the phase, and thereby the front end portion of the horizontal sound insulating member 2. The noise reduction effect is obtained by interfering with the noise b entering from the vicinity of 2a (see FIG. 1). That is, the oblique sound insulation member 3 becomes a guide member for the noise a that diffracts and enters from the opening 6, and causes the noise a to collide with the reversal member 4 to reverse the phase. Next, the horizontal sound insulation member 2 serves as a guide member for the noise a ′ whose phase has been reversed as described above, and guides the noise a ′ toward the opening 6. Therefore, it is a fact already known in theory that the noise a ′ and the noise b newly entering from the opening 6 reliably interfere with each other to reduce the noise a ′ and b. In addition, it is already known that the noise a that has entered first is diffracted in the enclosure 5 to reduce energy, and the noise a itself is reduced.
[0021]
Thus, the present invention can form a soundproof wall having a high sound reduction effect by merely forming the surrounding part 5 having the opening 6 with the horizontal sound insulation member 2, the oblique sound insulation member 3, and the reversing member 4. Of course, the arrangement is simple to manufacture and assemble.
[0022]
As described above, the horizontal sound insulation member 2, the oblique sound insulation member 3, and the reversing member 4 are formed by bending a single metal plate, which greatly contributes to cost reduction (the invention according to claim 5).
[0023]
Therefore, even if the soundproof wall 1 is a special portion such as a stretchable portion, a widened portion, or a sign portion other than the straight portion, it can be easily dealt with and can be easily assembled and implemented.
[0024]
Further, the horizontal sound insulation member 2, the oblique sound insulation member 3 and the reversing member 4 have a structure suitable for manufacturing with the same material. Therefore, when formed with a single metal plate as described above, a member that can be easily recycled can be provided, industrial waste can be reduced, and the cost can be reduced (the invention according to claim 6). .
[0025]
And since it is the structure which does not protrude to the private side, there is no possibility that a soundproof wall may protrude from a building boundary.
[0026]
Next, FIG. 2 shows an embodiment of the invention described in claims 1 and 3.
[0027]
This soundproof wall also has a soundproof wall 1 installed at the boundary between the noise source side A and the private side B along the road as a basic structure, and from the upper end of the soundproof wall 1 to the noise source side A (left direction in FIG. 2) The horizontal sound insulation member 2 disposed substantially horizontally to the sound source, the oblique sound insulation member 3 disposed obliquely upward from the front surface of the sound insulation wall 1 below the horizontal sound insulation member 2 to the noise source side A, and A reversing member 4 disposed along the front surface of the soundproof wall 1 sandwiched between two sound insulating members 2 and 3 is provided.
[0028]
The horizontal sound insulation member 2, the oblique sound insulation member 3 and the reversing member 4 are also formed by bending a single metal plate as an example (the inventions according to claims 5 and 6), and the horizontal sound insulation member 2 and the oblique sound insulation member. A surrounding portion 5 is formed by the member 3 and the reversing member 4, and the surrounding portion 5 has an opening 6 formed by the front end portion 2 a of the horizontal sound insulating member 2 and the front end portion 3 a of the oblique sound insulating member 3.
[0029]
However, in the case of FIG. 2, the horizontal sound insulation member 2 is arranged in such a length that the front end portion 2 a reaches the substantially extension line of the oblique sound insulation member 3, and obliquely below the substantially extension line of the oblique sound insulation member 3. A feature is that a facing opening 6 is formed (invention of claim 3).
[0030]
As in the embodiment of FIG. 1, the surrounding portion 5 having the opening 6 diffracts the front end portion 3 a of the oblique sound insulating member 3 and causes the noise a entering from the opening 6 to collide with the reversing member 4 to reverse the phase. Then, the noise reduction effect is obtained by interfering with the noise b entering from the vicinity of the front end 2a of the horizontal sound insulating member 2 (see FIG. 2). That is, also in this embodiment, the oblique sound insulation member 2 becomes a guide member for the noise a that diffracts and enters from the opening 6, and the noise a collides with the reversing member 4 and the phase is reversed. Next, the horizontal sound insulation member 2 serves as a guide member for the noise a ′ whose phase has been reversed as described above, and guides the noise a ′ toward the opening 6. Therefore, the noise a ′ and the noise b newly entering from the opening 6 are surely interfered with each other, and the noises a ′ and b are reduced. Further, the noise a that has entered first is diffracted in the surrounding portion 5 to reduce the energy, and the noise a itself is reduced as in the embodiment of FIG.
[0031]
Thus, the present invention can also form a soundproof wall having a high sound reduction effect by simply forming the surrounding part 5 having the opening 6 with the horizontal sound insulation member 2, the oblique sound insulation member 3, and the reversing member 4. Of course, by forming the horizontal sound insulating member 2, the oblique sound insulating member 3 and the reversing member 4 by bending a single metal plate, manufacturing can be simplified and industrial waste can be reduced. This contributes to reduction (inventions of claims 5 and 6). Moreover, even if the soundproof wall 1 is a special part such as a stretchable part, a widened part or a sign part other than the straight part, it can be easily dealt with and can be easily assembled and implemented.
[0032]
Of course, since it is a structure which does not protrude to a private side, there is no possibility that a soundproof wall may protrude from a building boundary.
[0033]
FIG. 3 shows an embodiment of the invention described in claims 1 and 4.
[0034]
This soundproof wall also has a soundproof wall 1 installed at the boundary between the noise source side A and the private side B along the road, and the noise source side A (leftward direction in FIG. 3) from the upper end of the soundproof wall 1 The horizontal sound insulation member 2 disposed substantially horizontally to the sound source, the oblique sound insulation member 3 disposed obliquely upward from the front surface of the sound insulation wall 1 below the horizontal sound insulation member 2 to the noise source side A, and It is characterized in that a reversing member 4 arranged along the front surface of the soundproof wall 1 sandwiched between two sound insulating members 2 and 3 is installed.
[0035]
The horizontal sound insulation member 2, the oblique sound insulation member 3 and the reversing member 4 are also formed by bending a single metal plate (the inventions according to claims 5 and 6), and the horizontal sound insulation member 2 and the oblique sound insulation member. 3 and the reversing member 4 form a surrounding portion 5, and the surrounding portion 5 has an opening 6 formed by the distal end portion 2 a of the horizontal sound insulating member 2 and the distal end portion 3 a of the oblique sound insulating member 3.
[0036]
In particular, in the case of FIG. 3, the front end 2a of the horizontal sound insulation member 2 and the front end 3a of the oblique sound insulation member 3 are located considerably before the intersection of the respective extension lines, and the opening 6 of the enclosure 5 is vertical. It is formed in a planar shape (the invention according to claim 4).
[0037]
Similar to the embodiment of FIGS. 1 and 2, the surrounding portion 5 having the opening 6 diffracts the tip 3 a of the oblique sound insulating member 3 and causes the noise a entering from the opening 6 to collide with the reversing member 4. Thus, the phase is reversed, and the noise reduction effect is obtained by interfering with the noise b entering from the vicinity of the front end 2a of the horizontal sound insulating member 2 (see FIG. 3). That is, the oblique sound insulation member 3 as a guide member collides the noise a entering from the opening 6 with the reversing member 4 and reverses the phase. Next, the horizontal sound insulation member 2 as a guide member guides the noise a ′ whose phase has been reversed as described above toward the opening 6, and the noise a ′ whose phase has been reversed and the noise b newly entered from the opening 6. Interfere.
[0038]
Thus, the present invention can form a soundproof wall having a high sound reduction effect by merely forming the surrounding part 5 having the opening 6 with the horizontal sound insulation member 2, the oblique sound insulation member 3, and the reversing member 4. Of course, by forming the horizontal sound insulating member 2, the oblique sound insulating member 3 and the reversing member 4 by bending a single metal plate, manufacturing can be simplified and industrial waste can be reduced. This contributes to reduction (inventions of claims 5 and 6). Moreover, since the structure is simple as described above, even if the soundproof wall 1 is a special part such as a stretchable part, a widened part, or a sign part other than the straight part, it can be easily dealt with and can be easily assembled and implemented.
[0039]
Of course, since it is set as the structure which does not protrude to a private side, there is no possibility that a soundproof wall may protrude from a building boundary.
[0040]
In each of the above embodiments, the horizontal sound insulation member 2, the oblique sound insulation member 3, and the reversing member 4 that form the enclosure 5 having the soundproof wall 1 and the opening 6 are integrally formed of one plate material. However, this is not the case. In other words, the horizontal sound insulation member 2, the oblique sound insulation member 3, and the reversing member 4 can be similarly implemented even if they are constituted by a combination of three independent plate members.
[0041]
In the above-described embodiment, the horizontal sound insulating member 2, the oblique sound insulating member 3, and the reversing member 4 are formed from a metal plate, but this is not restrictive. That is, even if the horizontal sound insulation member 2, the oblique sound insulation member 3 and the reversing member 4 are formed from a synthetic resin translucent member, the invention can be carried out in the same manner. Therefore, even if the horizontal sound insulation member 2, the diagonal sound insulation member 3 and the reversing member 4 are installed on the upper part of the sound insulation wall 1 made of a translucent member, the field of view is not obstructed and the scenery is good.
[0042]
Furthermore, in the said embodiment, although the reinforcement member is not provided in the diagonal sound-insulation member 3, it is also preferable to provide the diagonal sound-insulation member 3 with a reinforcement embossing (invention of Claim 8). It is because the diagonal sound insulation member 3 can be more easily installed on the soundproof wall 1 by providing the reinforcing emboss.
[0043]
Next, FIG. 4 shows an embodiment in which the horizontal sound insulation member 2, the oblique sound insulation member 3, and the reversing member 4 are installed on the upper end portion of the soundproof wall 1 using a common attachment member 7. Item 9).
[0044]
Specifically, a plurality of sets of mounting members 7, 7, which are a pair of two formed in a reverse L-shape from the upper end of the reversing member 4 to the private side B in a series of configurations with the horizontal sound insulating member 2. It is integrally formed with a constant interval L (about 2 to 3 m). A downwardly U-shaped fitting portion 8 formed by the reversing member 4 and the mounting member 7 is fitted into the upper end portion of the soundproof wall 1 and fixed with bolts (not shown) to form a soundproof wall.
[0045]
Therefore, the set of the horizontal sound insulation member 2, the diagonal sound insulation member 3, and the reversing member 4 can be easily attached to the existing or new soundproof wall 1.
[0046]
In this embodiment, the opening 6 is formed upward as in the embodiment of FIG. 1, but in the embodiment of FIGS. 2 and 3, a mounting member 7 is provided in the same way to the soundproof wall 1. Installation is performed.
[0047]
Moreover, although the two attachment members 7 are comprised as a set, the number is not limited.
[0048]
[Effects of the present invention]
The soundproof wall according to any one of claims 1 to 9 has a sound reduction effect only by forming a surrounding part having an opening with a horizontal sound insulation member, an oblique sound insulation member and a reversing member arranged on the noise source side in the upper part of the sound insulation wall. A high soundproof wall can be constructed, which is easy to manufacture and contributes to cost reduction. Even if the shape of the soundproof wall is a special part such as a stretchable part, a widened part or a sign part other than the straight part, it can be easily dealt with and can be easily assembled and implemented.
[0049]
The set of the horizontal sound insulation member, the oblique sound insulation member, and the reversal member can be easily attached to an existing or new soundproof wall with an attachment member.
[0050]
Furthermore, the horizontal sound insulation member, the oblique sound insulation member, and the reversing member can be manufactured from the same material, can be easily recycled, reduce industrial waste, and also contribute to cost reduction.
[0051]
And since it is set as the structure which does not project to a private land side, there is no possibility that a noise barrier projects from a building boundary.
[Brief description of the drawings]
FIG. 1 is an elevational view showing an embodiment of a soundproof wall according to the first and second aspects of the present invention.
FIG. 2 is an elevational view showing an embodiment of a soundproof wall according to the first and third aspects of the present invention.
FIG. 3 is an elevational view showing an embodiment of a soundproof wall according to the first and fourth aspects of the present invention.
FIG. 4 is an elevational view showing an embodiment of a soundproof wall according to the invention as set forth in claim 9;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1, Sound insulation wall 2 Horizontal sound insulation member 2a, 3a Tip part 3 Diagonal sound insulation member 4 Reversing member 5 Enclosure part 6 Opening part 7 Attachment member A Noise source side B Private side a, a ', b Noise

Claims

A horizontal sound insulation member arranged substantially horizontally from the upper end of the sound insulation wall to the noise source side, and an oblique sound insulation member arranged to be inclined obliquely upward from the front surface of the sound insulation wall below the horizontal sound insulation member to the noise source side, and A reversing member disposed along the front surface of the soundproof wall sandwiched between the two sound insulation members, and a surrounding portion is formed by the horizontal sound insulation member, the diagonal sound insulation member and the reversal member,
The surrounding portion has an opening formed by a front end portion of the horizontal sound insulation member and a front end portion of the oblique sound insulation member, and the noise that has entered from the opening portion collides with the reversing member to reverse the phase and enter. A soundproof wall characterized by having a sound reduction effect by interfering with noise.

The oblique sound insulation member is arranged in such a length that a tip portion thereof reaches a substantially extension line of the horizontal sound insulation member, and an opening of a surrounding part is formed on the substantially extension line of the horizontal sound insulation member, The soundproof wall according to claim 1.

The horizontal sound insulating member is arranged in such a length that a tip portion thereof reaches a substantially extended line of the oblique sound insulating member, and an opening of a surrounding part is formed on the substantially extended line of the oblique sound insulating member, The soundproof wall according to claim 1.

The front end portion of the horizontal sound insulation member and the front end portion of the oblique sound insulation member are located on the near side from the intersection of the respective extension lines, and the opening of the surrounding portion is formed in a vertical plane shape. Item 1. The soundproof wall according to item 1.

The soundproof wall according to any one of claims 1 to 4, wherein the horizontal sound insulation member, the oblique sound insulation member, and the reversal member are formed of a single plate material.

The soundproof wall according to claim 5, wherein the horizontal sound insulation member, the oblique sound insulation member, and the reversal member are metal plates.

The soundproof wall according to claim 5, wherein the horizontal sound insulation member, the oblique sound insulation member, and the reversal member are translucent members made of synthetic resin.

The soundproof wall according to any one of claims 1 to 7, wherein a reinforcing emboss is provided on the oblique sound insulation member.

The sound insulation wall according to any one of claims 1 to 8, wherein the horizontal sound insulation member, the oblique sound insulation member, and the reversing member are installed on an upper end portion of the sound insulation wall by an attachment member.