KR20050017997A - A soundproofed wall - Google Patents

A soundproofed wall

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Publication number
KR20050017997A
KR20050017997A KR1020030055674A KR20030055674A KR20050017997A KR 20050017997 A KR20050017997 A KR 20050017997A KR 1020030055674 A KR1020030055674 A KR 1020030055674A KR 20030055674 A KR20030055674 A KR 20030055674A KR 20050017997 A KR20050017997 A KR 20050017997A
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KR
South Korea
Prior art keywords
soundproof
soundproof plate
plate
posts
sound insulation
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KR1020030055674A
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Korean (ko)
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KR100526955B1 (en
Inventor
윤미진
Original Assignee
최은철
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Application filed by 최은철 filed Critical 최은철
Priority to KR10-2003-0055674A priority Critical patent/KR100526955B1/en
Publication of KR20050017997A publication Critical patent/KR20050017997A/en
Application granted granted Critical
Publication of KR100526955B1 publication Critical patent/KR100526955B1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0017—Plate-like elements
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0023—Details, e.g. foundations

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)

Abstract

PURPOSE: A soundproofed wall is provided to resist wind pressure and to improve in appearance by coupling soundproof plates to vertical grooves between posts using a clamp member and an adhesive bracket and to secure the convenience on work by installing a soundproof plate on the front of a soundproofed wall. CONSTITUTION: The soundproofed wall contains: posts(100) arranged along both sides of a road at regular intervals and provided with vertical grooves(110); a soundproof plate(200) provided with an uplifted part by forming in a folded shape having the radius of curvature and coupled to the vertical grooves(110) of the posts(100) using a clamp member(300) and an adhesive bracket(400); a clamp member(300) and an adhesive bracket(400) fixing soundproof plates(200) to the post(100); and an adaptor made of aluminum, composed of primary and secondary coupling members to be coupled by bolts, provided with soundproof plate fitting grooves to couple the ends of the soundproof plate(200) to the outer upper and lower parts respectively, and connecting the soundproof plate(200) with another soundproof plate(200) vertically.

Description

방음벽{A SOUNDPROOFED WALL} Soundproof Walls {A SOUNDPROOFED WALL}

본 발명은 방음벽에 관한 것으로서, 더욱 상세하게는 도로상에 배열된 포스트들 사이에서 상하 적층방식으로 끼워져 결합되는 방음편이 호형의 구조로 풍압을 해소할 수 있도록 하며 또한 이들의 상하 밀착단이 아답터에 의해 끼움 결합되도록 함과 동시에 방음판의 좌우 양단이 포스트 사이의 전후방에서 결합 고정될 수 있도록 하여 풍압 해소는 물론 방음벽의 설치 간편화로 비용 절감과 동시에 그 외관의 미려함을 이룰 수 있도록 한 방음벽에 관한 것이다.The present invention relates to a soundproof wall, and more particularly, a soundproof piece that is inserted and coupled in a vertical stacking manner between posts arranged on a road to solve wind pressure in an arc-shaped structure, and the upper and lower close ends thereof are connected to an adapter. It is related to the soundproof wall so that both the left and right ends of the soundproof panel can be coupled and fixed at the front and rear between the posts, thereby reducing wind pressure and simplifying the installation of the soundproof wall, thereby achieving cost reduction and beauty of the appearance.

방음벽은 차량이 주행하는 도로 또는 철도 등의 주변에 설치되어 차량으로부터 발생되는 소음이 인접된 주택 학교 등의 건물에 전달되지 않도록 하기 위해 설치되는 것이다. The soundproof wall is installed in the vicinity of a road or a railroad on which the vehicle runs so as to prevent noise generated from the vehicle from being transmitted to a building such as an adjacent residential school.

종래 사용되어진 방음벽은, 도로의 양쪽에서 도로 길이방향을 따라 설치되는 "H" 형상의 포스트와, 이 포스트들 사이에 테두리를 감싼 외측 프레임의 좌우 양단이 상하 슬라이드 끼움 결합되는 복수개의 방음판으로 구성되어, 설치 작업시에는 먼저 도로의 양쪽에 도로 길이방향을 따라 포스트들을 소정간격을 두고 세워서 고정시키고, 이 포스트들 사이에 방음판의 외측단을 감싼 프레임의 좌우 양단을 끼움시킨 후 포스트의 상단으로부터 하향으로 하나씩 밀어넣어 적층 고정시키는 방식으로 설치한다.Conventionally used soundproof walls are composed of "H" shaped posts installed along both sides of the road, and a plurality of soundproof panels in which the left and right ends of the outer frame wrapped around the posts are fitted with upper and lower slides. In the installation work, first, posts are fixed on the both sides of the road along the length of the road at a predetermined interval, and the left and right ends of the frame surrounding the outer end of the sound insulation board are sandwiched between these posts, and then downward from the top of the post. Install them by pushing them one by one and stacking them.

이에 따라 방음판이 투명체인 경우 방음판과 방음판 사이의 프레임에 의해 그 외관이 미려하지 못한 문제점이 있어 왔고, 또한 방음판을 각각 프레임으로 감싼 상태로 포스트에 결합시켜야 함에 따라 비용 상승 및 작업 불편을 초래하는 문제점이 있어왔다. Accordingly, when the sound insulation board is a transparent body, there is a problem that its appearance is not beautiful due to the frame between the sound insulation board and the sound insulation board, and the cost is increased and work inconvenience is caused by the coupling of the sound insulation board to the posts wrapped with the frames respectively. This has been.

또한, 풍압을 고려하여 방음판의 두께가 일정이상의 두께로 형성되어야 하므로 이에따른 비용이 크게 상승되는 문제점이 있어왔다.In addition, in consideration of the wind pressure, the thickness of the sound insulation board has to be formed to a predetermined thickness or more, there is a problem that the cost is significantly increased accordingly.

이에 본 발명은 상기한 문제점을 해결하기 위해 창안된 것으로, 본 발명의 목적은 도로상에 배열된 포스트들 사이에 좌우 양단이 끼워져 상하로 적층 결합되는 복수개의 방음판들이 각기 호형의 구조로 이루어지도록 하여 풍압을 해소할 수 있도록 하는데 있는 것이다.Accordingly, the present invention was devised to solve the above problems, and an object of the present invention is to have a plurality of sound insulation plates each having a plurality of sound insulation plates stacked and coupled up and down between left and right ends between posts arranged on a road. It is to be able to relieve the wind pressure.

본 발명의 다른 목적은, 상기 방음판들의 상하 밀착단이 아답터에 의해 끼움 결합되도록 함과 동시에 방음판의 좌우 양단이 포스트 사이의 전후방에서 결합 고정될 수 있도록 하여 풍압 해소는 물론 방음판을 방음벽 전면에서 설치함에 따른 작업 편의성 확보 및 그 외관의 미려함을 이룰 수 있도록 하는데 있는 것이다. Another object of the present invention, while the upper and lower contact ends of the sound insulation panels are fitted by the adapter and at the same time both left and right ends of the sound insulation panel to be fixed in front and rear between the post to solve the wind pressure as well as to install the soundproof plate in front of the soundproof wall It is to ensure the convenience of work and to achieve the beauty of the appearance.

상기 목적을 달성하기 위한 본 발명은, 도로의 양쪽에 길이방향을 따라 배열되며 그 대응면에 각각 수직홈이 형성되는 포스트와; 이들 포스트 사이의 대응된 수직홈에 좌우 양단이 각각 전면을 밀착고정하는 클램프부재와 후면을 지지하는 밀착브래킷에 의해 탈착가능하게 고정되며, 전면이 볼록한 호형의 구조를 갖는 방음판과; 상기 방음판의 상단에 또 다른 방음판이 밀착되어 서로 결합될 수 있도록 이들을 고정하는 아답터를 포함하여 구성한다.The present invention for achieving the above object, the post is arranged along the longitudinal direction on both sides of the road and the vertical groove is formed in the corresponding surface respectively; A soundproof plate which is detachably fixed to a corresponding vertical groove between these posts by a clamp member for fastening the front face and a close contact bracket for supporting the rear face, respectively, and having an arc-shaped structure in which the front face is convex; Another soundproof plate is attached to the top of the soundproof plate is configured to include an adapter for fixing them to be coupled to each other.

상기 클램프부재는, 상기 수직홈의 내벽과 상기 방음판의 틈새에 끼움되어 상기 수직홈에 보올트 결합되며, 상기 방음판 밀착면에 패드가 끼움 결합되어서 이루어지도록 한다.The clamp member is inserted into a gap between the inner wall of the vertical groove and the soundproof plate, and is bolt-coupled to the vertical groove, so that the pad is fitted to the sound insulating plate contact surface.

상기 아답터는, 대응면에 결합돌기와 결합홈을 갖는 암수 한쌍의 제1 및 제2결합부재로 이루어져 서로 보올트 결합되며 외측 상하부에 상기 방음판의 단부가 각기 결합될 수 있도록 방음판 끼움홈이 형성되어서 이루어진다.The adapter is composed of a pair of male and female first and second coupling members having coupling protrusions and coupling grooves on the corresponding surfaces, and the soundproof plate fitting grooves are formed so that the ends of the soundproof plate are respectively coupled to the upper and lower outer portions. .

본 발명에 따른 다른 특징은, 상하 밀착단이 상기 아답터를 통해 연결되는 복수개의 방음판들이 볼록한 융기부가 서로 교차하는 파형을 이루며 결합되도록 함에 있다.Another feature of the present invention is that the upper and lower contact ends are coupled to form a waveform in which a plurality of soundproof plates connected through the adapter form convex ridges intersecting with each other.

이하, 본 발명에 따른 방음벽을 첨부된 도면을 참조로 하여 상세히 설명한다.Hereinafter, a soundproof wall according to the present invention will be described in detail with reference to the accompanying drawings.

본 발명은 도 1 내지 도 3의 도시에 의하여 포스트(100)와, 곡률반경을 가지며 절곡되어 일측에 융기부를 갖는 방음판(200)과, 포스트(100)에 방음판(200)들을 고정시키기 위한 클램프부재(300) 및 밀착브래킷(400)과, 방음판(200)과 또 다른 방음판(200)을 상하 연결시키기 위한 아답터(500)를 포함하여 구성된다.1 to 3, the post 100 and the soundproof plate 200 having a radius of curvature and a bent portion on one side, and a clamp member for fixing the soundproof plate 200 to the post 100 by the illustration of FIGS. It is configured to include an adapter 500 for connecting the 300 and the close contact bracket 400, the soundproof plate 200 and another soundproof plate 200 up and down.

상기 포스트(100)는, 주지된 바와같이 도로의 양쪽에 길이방향을 따라 등간격 배열되며 그 대응면에 각각 수직홈(110)이 형성된다.As is well known, the posts 100 are arranged at equal intervals in the longitudinal direction on both sides of the road, and vertical grooves 110 are formed on the corresponding surfaces thereof.

여기서, 상기 포스트(100)의 형상은 소정길이를 갖는 중실 또는 중공형의 원형, 또는 공지의 "H" 형상으로 이루어짐이 가능하며, 그 양쪽에는 각각 수직한 수직홈(110)이 형성된다.Here, the shape of the post 100 may be made of a solid or hollow circular shape, or a known "H" shape having a predetermined length, vertical vertical grooves 110 are formed on both sides thereof.

상기 방음판(200)은, 판형의 투명 또는 불투명체로 호형의 곡률반경을 갖는 절곡된 형상을 취하여 일측에 융기부(210)가 형성되며, 배열된 상기 포스트(100)들 사이의 대응된 수직홈(110)에 좌우 양단이 결합되어 상기 클램프부재(300)와 밀착브래킷(400)에 의해 결합된다.The soundproof plate 200 is a plate-shaped transparent or opaque body having a curved shape having an arc-shaped curvature radius, and a ridge 210 is formed on one side, and corresponding vertical grooves between the arranged posts 100 ( Both ends of the left and right are coupled to the 110 is coupled by the clamp member 300 and the close bracket 400.

상기 밀착브래킷(400)은, 절곡된 형상을 취하며 일측 수직단(410)이 상기 방음판(200)의 후면을 지지하고 타측 수평단(420)이 보올트(430)로서 밀착된 수직홈(110)에 결합된다.The close contact bracket 400 has a bent shape and the vertical groove 110 in which one vertical end 410 supports the rear surface of the soundproof plate 200 and the other horizontal end 420 is in close contact with the bolt 430. ) Is combined.

상기 클램프부재(300)는, 상기 수직홈(110)의 내벽과 상기 방음판(200)의 틈새에 끼움되어 일면 결합면(310)이 상기 수직홈(110)에 보올트(311) 결합되며, 타면에 제공된 방음판 밀착면(320)에 방음판(200)과의 밀착을 위한 완충재의 패드(330)가 끼움 결합된다.The clamp member 300 is fitted into a gap between the inner wall of the vertical groove 110 and the soundproof plate 200 so that one surface coupling surface 310 is coupled to the vertical groove 110 by the bolt 311. The pad 330 of the cushioning material for close contact with the soundproof plate 200 is fitted to the soundproof plate contact surface 320 provided in the.

상기 방음판 밀착면(320)은 상기 방음판(200)의 곡률과 동일한 형상을 취하며 그 표면에는 끼움홈(321)이 형성되고, 상기 패드(330)에는 끼움돌기(331)가 형성되어 상기 끼움돌기(331)가 끼움홈(321)에 끼움 고정된다.The sound insulation plate contact surface 320 has the same shape as the curvature of the sound insulation plate 200, and the fitting groove 321 is formed on the surface thereof, and the fitting protrusion 331 is formed on the pad 330 to form the fitting protrusion. 331 is fitted in the fitting groove 321 is fixed.

상기 아답터(500)는, 알루미늄소재로 성형되어 이루어지며, 상기 방음판(200)의 상단에 또 다른 방음판이 밀착되어 서로 결합될 수 있도록 이들을 고정시키게 되는 것이다.The adapter 500 is formed of an aluminum material, and the other soundproof plate is fixed to the top of the soundproof plate 200 so that they can be coupled to each other.

즉, 상기 아답터(500)는 대응면에 축방향을 따라 각기 결합돌기(511)와 결합홈(521)을 갖는 암수 한쌍의 제1 및 제2결합부재(510)(520)로 이루어져 서로 보올트(530) 결합되며, 외측 상하부에 상기 방음판(200)의 단부가 각기 결합될 수 있도록 방음판 끼움홈(512,522)이 형성된다.That is, the adapter 500 is composed of a pair of male and female first and second coupling members 510 and 520 each having a coupling protrusion 511 and a coupling groove 521 along the axial direction on the corresponding surface. 530 is coupled, the sound insulation plate fitting grooves (512, 522) are formed so that the ends of the sound insulation plate 200 can be coupled to the upper and lower outer sides, respectively.

또한, 상기 아답터(500)에는, 동일한 길이방향으로 와이어(550)가 내장되도록 하고 이 와이어(550)의 양단을 상기 수직홈(110)에 연결시켜 풍압 해소 및 공지의 방음판(200) 외측을 고정하는 프레임 역활을 수행할 수 있도록 함이 바람직할 것이다.In addition, the adapter 500, the wire 550 is embedded in the same longitudinal direction, and both ends of the wire 550 are connected to the vertical groove 110 to eliminate wind pressure and fix the outside of the known soundproof panel 200. It would be desirable to be able to perform a frame role.

이상에서와 같이 구성되는 방음벽의 설치상태를 첨부된 도면을 참조로 하여 상세히 설명한다.The installation state of the soundproof wall configured as described above will be described in detail with reference to the accompanying drawings.

설치시에는 먼저 도 1에 도시된 바와같이 도로의 가장자리에 포스트(100)를 등간격으로 배열시켜 지면에 제공된 거푸집에 브래킷을 통해 고정시킨다. 이후 포스트와 포스트 사이의 대응된 수직홈(110)에 방음판(200)의 양단을 끼움시키면 되는데, 이때 도 1 및 도 2에 도시된 바와같이 방음판(200)의 일측 융기부(210)가 도로방향을 향하도록 결합하고 동시에 방음판(200)의 후면은 밀착브래킷(400)으로, 그리고 방음판(200)의 전면에는 클램프부재(300)를 보올트(430)(311) 결합시키면 방음판(200)들 중 하나의 설치가 완료된다. 이후, 설치된 방음판(200)에 다른 방음판(200)을 연결시키고자 하는 경우, 아답터(500)의 외주면에 형성된 방음판 끼움홈(512)(522)이 서로 밀착된 방음판(200)의 대응단에 각각 끼움 결합되도록 하면 방음판의 연결이 완료되며, 이와같은 방법으로 방음판의 상측에 또 다른 방음판을 설치하면 설치작업이 완료되는 것이다.At installation, first, the posts 100 are arranged at equal intervals on the edge of the road as shown in FIG. 1 and fixed to the formwork provided on the ground through a bracket. Thereafter, both ends of the sound insulation panel 200 may be inserted into the corresponding vertical grooves 110 between the posts. In this case, as shown in FIGS. 1 and 2, one ridge 210 of the sound insulation plate 200 is in a road direction. At the same time, the rear side of the soundproof plate 200 is in close contact with the bracket 400, and the front surface of the soundproof plate 200 is coupled to the bolt member 430, 311 of the soundproof plate 200 One installation is complete. Subsequently, when the other sound insulation board 200 is to be connected to the installed sound insulation board 200, the sound insulation plate fitting grooves 512 and 522 formed on the outer circumferential surface of the adapter 500 are respectively connected to corresponding ends of the sound insulation panel 200 in close contact with each other. When the fitting is completed, the connection of the soundproof board is completed, and if another soundproof board is installed on the upper side of the soundproof board in this way, the installation work is completed.

또한, 방음벽으로부터 손상된 방음판을 해체시키고자 하는 경우에는 방음벽의 전면에서 해당 방음판(200)을 고정하는 양쪽 클램프부재(300)를 탈거시키게 되면 방음판(200)이 간편하게 해체되고, 다시 새로운 방음판(200)을 끼움시킨후 클램프부재(300)를 결합시키게 되면 교체가 가능하게 된다. In addition, in the case of dismantling the damaged soundproof plate from the soundproof wall, the soundproof plate 200 is easily dismantled when the two clamp members 300 which fix the soundproof plate 200 are removed from the front of the soundproof wall, and the new soundproof plate 200 is again. After fitting the clamp member 300 is coupled to it is possible to replace.

도 4는 본 발명에 따른 다른 실시예로서, 호형을 갖는 방음판(200)들이 상하 동일한 방향으로 결합되지 않고 서로 다른 방향으로 밀착 결합되도록 하여 상기 방음판들이 파형의 구조를 취하도록 한 것이다. 4 is another embodiment according to the present invention, the soundproof plate 200 having an arc shape is not coupled in the same direction up and down, but in close contact with each other so that the soundproof plate to take the structure of the waveform.

따라서, 본 발명에 따른 방음벽은, 도로상에 배열된 포스트들 사이의 대응된 수직홈에 호형의 방음판이 클램프부재와 밀착브래킷을 통해 좌우 양단이 결합되도록 하여 풍압해소 및 그 외관이 미려해지는 효과가 있다.Therefore, the soundproof wall according to the present invention, the arc-shaped soundproof plate is coupled to the corresponding vertical groove between the posts arranged on the road so that both ends of the left and right through the clamp member and the close contact bracket to reduce the wind pressure and the appearance is beautiful effect have.

또한, 포스트들 사이에 상하 복수개로 결합되는 방음판들의 상하 밀착단이 아답터에 의해 끼움 결합되도록 함과 동시에 방음판의 좌우 양단에 제공되는 클램프부재가 부분 해체될 수 있도록 하여 풍압 해소와 함께 방음판을 방음벽 전면에서 설치함에 따른 작업 편의성이 확보되는 효과가 있다. In addition, the upper and lower contact ends of the sound insulation boards coupled to the plurality of posts up and down between the posts are fitted by the adapter, and at the same time the clamp members provided at the left and right ends of the sound insulation board can be partially disassembled, thereby reducing the wind pressure and the soundproof plate front surface There is an effect of ensuring the convenience of work by installing in.

도 1은 본 발명에 따른 방음벽의 결합상태 분리사시도,1 is an exploded perspective view of the coupled state of the soundproof wall according to the present invention;

도 2는 도 1의 결합상태 측면도,Figure 2 is a side view of the coupling state of Figure 1,

도 3은 도 2의 요부 확대 단면도,3 is an enlarged cross-sectional view of the main part of FIG. 2;

도 4는 본 발명에 따른 다른 실시예.4 is another embodiment according to the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

100: 포스트 200: 방음판100: post 200: soundproof plate

300: 클램프부재 400: 밀착브래킷300: clamp member 400: contact bracket

500: 아답터500: adapter

Claims (4)

도로의 양쪽에 길이방향을 따라 배열되며 그 대응면에 각각 수직홈이 형성되는 포스트와;Posts arranged along the longitudinal direction on both sides of the road and having vertical grooves formed on corresponding surfaces thereof; 이들 포스트 사이의 대응된 수직홈에 좌우 양단이 각각 전면을 밀착고정하는 클램프부재와 후면을 지지하는 밀착브래킷에 의해 탈착가능하게 고정되며, 전면이 볼록한 호형의 구조를 갖는 방음판과;A soundproof plate which is detachably fixed to a corresponding vertical groove between these posts by a clamp member for fastening the front face and a close contact bracket for supporting the rear face, respectively, and having an arc-shaped structure in which the front face is convex; 상기 방음판의 상단에 또 다른 방음판이 밀착되어 서로 결합될 수 있도록 이들을 고정하는 아답터를 포함하여 구성됨을 특징으로 하는 방음벽.Soundproof wall, characterized in that it comprises an adapter for fixing them so that the other soundproof plate is in close contact with each other on top of the soundproof plate. 제 1 항에 있어서, 상기 클램프부재는The method of claim 1, wherein the clamp member 상기 수직홈의 내벽과 상기 방음판의 틈새에 끼움되어 상기 수직홈에 보올트 결합되며, 상기 방음판 밀착면에 패드가 끼움 결합되어서 이루어짐을 특징으로 하는 방음벽.Soundproof wall, characterized in that the inner wall of the vertical groove and the gap between the soundproof plate is inserted into the vertical groove and the pad is fitted to the sound insulating plate contact surface. 제 1 항에 있어서, 상기 아답터는The method of claim 1, wherein the adapter 대응면에 결합돌기와 결합홈을 갖는 암수 한쌍의 제1 및 제2결합부재로 이루어져 서로 보올트 결합되며 외측 상하부에 상기 방음판의 단부가 각기 결합될 수 있도록 방음판 끼움홈이 형성되어서 이루어짐을 특징으로 하는 방음벽.Comprising a pair of male and female first and second coupling members having coupling protrusions and coupling grooves on the corresponding surface, and the soundproof plate fitting groove is formed so that the ends of the sound insulation plate are respectively coupled to the upper and lower outer sides Soundproof walls. 제 1 항에 있어서, The method of claim 1, 상하 밀착단이 상기 아답터를 통해 연결되는 복수개의 방음판들이 볼록한 융기부가 서로 교차하는 파형을 이루며 결합됨을 특징으로 하는 방음벽.The sound insulation wall, characterized in that the plurality of sound insulation plates are connected to each other through the adapter is formed in the form of the waveform of the convex ridges intersecting each other.
KR10-2003-0055674A 2003-08-12 2003-08-12 A soundproofed wall KR100526955B1 (en)

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