JP2015190191A - Sound absorption device for road - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an installation structure for a sound absorption device for a road which is installed along a road and absorbs a travel sound of a vehicle etc., such that a thin type sound absorption plate is easily installed not to fall, and an outward appearance of a private land side is improved.SOLUTION: A sound absorption device for a road according to the present invention includes a joint adapter for positioning on a private land side and fitting a thin type sound absorption plate having a decorative plate covering a private land side of a column of H-shaped steel between flanges of the column. The sound absorption plate is pressed against and fixed to a private land-side flange of the H-shaped column with the joint adapter, and the decorative plate covers the private land side of the H-shaped column in the fixed state, so that the sound absorption plate which is thin and improves the outward appearance can be easily installed.

Description

  The present invention relates to an installation structure for a road sound absorbing device that is installed along a road and absorbs a running sound of a vehicle.

  In the sound absorbing device for roads, H-shaped steel columns are erected at predetermined intervals on both sides of the road, and sound absorbing plates with built-in sound absorbing materials such as glass wool are stacked between each column, and the upper side of this sound insulating member There is a structure in which a light-transmitting plate is mounted on the sound-absorbing plate, and a sound-absorbing plate having a sound-absorbing material such as glass wool is mounted thereon.

  According to the road sound absorbing device having the above configuration, it is possible to confine the traveling sound of the vehicle in the road side space and to absorb the traveling sound of the vehicle by the sound absorbing plate incorporating the sound absorbing material such as glass wool. Further, by providing the light-transmitting plate, the brightness of the driver's field of view is ensured by transmitting sunlight from the private land side to the road surface.

  In general, a translucent plate, a sound absorbing plate, and the like constituting a road sound absorbing device are fixed by being pressed into a flange portion of a column made of H-shaped steel by an elastic means such as a spring.

  In addition, the sound absorbing plate is provided with a decorative plate for exposing the private land (hereinafter simply referred to as “private land”) side of the H-shaped steel column and for improving the appearance when the road is viewed from the private side. It is divided roughly into what is concealed.

  In general, a sound absorbing board provided with a decorative plate has a structure in which a H-shaped steel column is covered and shielded from the private side by a decorative plate coupled to the sound absorbing plate, and compared with the case where the H-shaped steel column is exposed. While the appearance is improved, the decorative plate is attached to the sound-absorbing plate, which causes a problem in that the thickness, weight, and cost increase.

  In recent years, thinning of the sound absorbing plate has been promoted by improving the performance of the sound absorbing material incorporated in the sound absorbing plate, etc., but in the sound absorbing plate provided with the decorative plate, the sound absorbing plate is a translucent plate or the like of other panel members. Since the decorative board is mounted on the private side of the sound-absorbing board and held by the sound-absorbing board, it is difficult to change the thickness dimension of the sound-absorbing board, and it is set as usual However, there is a problem that thickness dimensions, manufacturing costs, transportation costs, etc. cannot be reduced.

  For example, Patent Document 1 discloses a structure for attaching a sound-absorbing plate provided with a decorative plate to an H-shaped steel column. As shown in FIG. 11, the thickness of the entire sound-absorbing plate including the decorative plate is disclosed. Thinning the dimensions is not considered, and there remains a problem that thickness dimensions, manufacturing costs, transportation costs, and the like cannot be reduced.

Japanese Utility Model Publication No. 06-021933

  In order to cope with such a problem, the present invention provides a thin sound absorbing plate having a thin decorative plate and easily installing the thin sound absorbing plate with a simple structure while covering the private side of the H-shaped steel column. The object of the present invention is to provide a road sound absorbing device capable of suppressing leakage of traveling sound and the like to a private area.

  The road sound absorbing device of the present invention provided to solve the above-described problems is a road sound absorbing device that is installed along a road and absorbs the traveling sound of a vehicle, and includes a roadway and a private land on both sides of the road. Is installed between the two, and the sound from the roadway is shielded, and a plurality of H-shaped steel columns that stand up at predetermined intervals in the traveling direction on both sides of the road, and both side edges of the plate-like members are received by the flange portions of the columns. A sound-absorbing plate forming a wall piled up in a standing state.

  The sound absorbing plate is provided with a decorative plate that covers the surface of the support on the private side, and is disposed in the flange portion of the support of the H-shaped steel, and elastic means that pushes the road side surface of the sound absorbing plate toward the private side. Positioned on the private side. By setting it as said structure, the said sound-absorbing board whole can be made thin, and manufacturing cost, transportation cost, etc. can be reduced.

  In addition, the sound absorbing plates of the present sound absorbing device are stacked on one or more translucent plates stacked so as to form a wall in a state where both side edges are received by the flange portions of the columns. The translucent plate is positioned on the road side by elastic means that is disposed in the flange portion and pushes the private side surface of the translucent plate to the road side.

  By adopting the above-described configuration, the lower panel member, the translucent plate, and the sound absorbing plate, which are plate-like members, are sequentially stacked in the flange portion of the pair of H-shaped steel columns so that the wall surface can be easily provided. Can be formed. In addition, by arranging the light transmitting plate at the lower part of the wall surface and the sound absorbing plate at the upper part, it is possible to prevent the traveling sound from reaching the private side while ensuring the brightness of the driver's field of view. It becomes.

  Further, as will be described in detail later, the translucent plate and the sound absorbing plate are pressed from the private side to the road side by the elastic means provided in the flange portion, and Since the sound absorbing plate is pressed and positioned from the road side to the private side, the light transmitting plate and the sound absorbing plate are caused by vibrations caused by traffic of the vehicle and / or wind from the private side and / or the road side. Can be prevented from vibrating and generating noise.

  A joint adapter for carrying the sound absorbing plate is disposed between the upper end of the light transmitting plate and the lower end of the sound absorbing plate. The joint adapter is connected to the lip portion, hooked on the road side of the upper end of the translucent plate and supporting the joint adapter on the upper end of the translucent plate, and connected to the upper end of the translucent plate. A spacer portion that guides and positions the lower end of the sound absorbing plate from the road side to the private side on the upper end, and a tongue-like portion that is connected to the private side of the spacer and supports the lower end of the sound absorbing plate. Configured.

  As will be described in detail later, with the above-described configuration, the lip portion allows the joint adapter to be easily and non-detachably disposed on the road side of the upper end of the translucent plate, and the upper end of the translucent plate is In the step of stacking the sound absorbing plates, the lower end of the sound absorbing plate is guided to the private side by the spacer portion, and the sound absorbing plate is placed on the tongue-shaped portion in a state where the sound absorbing plate is placed on the upper end of the light transmitting plate. It becomes possible to protect the upper end surface of the said translucent board by receiving the load of.

  Further, the joint adapter has a space formed between a road side surface of the sound absorbing plate and a road side flange portion and a web portion of the support column at both ends, a private side surface of the translucent plate, and a private side flange of the support column. The partition plate which partitions off between the space between the part and the web part is provided.

  In the sound absorbing structure of the present invention, the sound absorbing plate is positioned by pressing the sound absorbing plate on the private side and the light transmitting plate on the road side, so that the sound absorbing plate, the light transmitting plate, and the web portion of the column are between If a gap is provided in the road, running noise on the road side leaks to the private side through this gap. By providing the partition plate, it is possible to reduce running noise and the like passing through the gap.

  In addition, the spacer portion has at least a bottom surface that abuts and occupies a part of the upper end surface of the translucent plate on the road side, and a side surface that stands on the private side of the spacer. .

  Although described in detail later, by adopting the above-described configuration, the load of the sound absorbing plate is distributed to the bottom surface in addition to the tongue-shaped portion of the joint adapter, and the upper end surface of the translucent plate is more strongly protected. In addition, the lower end of the sound absorbing plate can be positioned on the private side by the side surface.

  The elastic means is a spring, and the spring can be mounted from the road side. According to the above, the operation of determining and fixing the position of the sound absorbing plate by inserting a spring between the flange of the column and the sound absorbing plate can be easily and quickly performed from the road side.

  According to the road sound absorbing device of the present invention, since the sound absorbing plate is pressed from the road side to the private side by the elastic means, the sound absorbing plate is thin and has a decorative plate fixed thereto (hereinafter simply referred to as “thin sound absorbing plate”). Can be used). The joint adapter for supporting the sound absorbing plate is disposed between the upper end of the light transmitting plate and the lower end of the sound absorbing plate. Although mentioned later in detail, by setting it as said structure, the said sound-absorbing board can be reliably piled up on the upper end of the said translucent board pressed against the road side.

It is the schematic diagram which looked at the sound-absorbing device for roads based on one Embodiment of this invention from the road side. It is the schematic which looked at the AA cross section of the sound absorber for roads shown in FIG. 1 from upper direction. FIG. 2 is a schematic diagram showing a main part of an installation structure of a road sound absorbing device when a BB cross section of the road sound absorbing device shown in FIG. 1 is viewed from the vehicle traveling direction. It is the schematic for demonstrating the structure of the joint adapter based on one Embodiment of this invention, (a) is sectional drawing of a joint adapter main body, (b) is sectional drawing of the partition plate with which a joint adapter is provided. . It is the schematic which looked at the joint adapter based on one Embodiment of this invention from the upper surface. It is the schematic which looked at the state arrange | positioned on the upper surface of the translucent plate which dropped the joint adapter between the support | pillars of H-shaped steel based on one Embodiment of this invention from the upper surface.

  Hereinafter, a road sound absorbing device 10 (hereinafter also simply referred to as a “sound absorbing device”) according to an embodiment of the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1, the road sound absorbing device 10 is generally disposed in flange portions (shown as 20 a in FIG. 2) (not shown) of a plurality of H-shaped steel columns 20 erected at predetermined intervals in the traveling direction on both sides of the road. The sound absorbing plate 22, the translucent plate 24, and the thin sound absorbing plate 26 are formed by being stacked in a state where both side edges are received.

  The thin sound absorbing plate 26 is configured by attaching a not-shown decorative plate (shown as 26b in FIG. 2) to a sound absorbing plate member (shown as 26a in FIG. 2). The light transmissive plate 24 includes a highly light transmissive plate, for example, a transparent plate 25 made of glass or acrylic resin.

  Further, the length dimension of the translucent plate 24 and the thin sound absorbing plate 26 in the vehicle traveling direction is set slightly shorter than the standing distance between the H-shaped steel columns 20. As shown in FIG. 2, the web portion 20 b of the H-shaped steel column 20 interferes with the light transmitting plate 24 and / or the thin sound absorbing plate 26, so that it is difficult to stack between the H-shaped steel columns 20. This is to prevent this from happening.

  As shown in FIG. 2, which is a schematic view of the AA cross section of the road sound absorbing device 10, showing a state in which the thin sound absorbing plate 26 to which the decorative plate 26 b is fixed is attached to the H-shaped steel column 20. The plate 26b is a strength member of the thin sound absorbing plate 26, and is configured to cover the private side of the H-shaped steel support column 20, thereby improving the appearance of the road sound absorbing device 10 from the private side. Further, noise from the road side is absorbed by a sound absorbing material (not shown) such as glass wool built in the sound absorbing plate member 26a.

  By setting it as said structure, the said sound-absorbing board whole can be made thin, and reduction of manufacturing cost, transport cost, etc. can be achieved.

  Further, the sound absorbing plate 22 and the light transmitting plate 24 shown in FIG. 1 are positioned and fixed on the road side by an elastic means (not shown) (not shown) provided in the flange portion 20a. Further, the thin sound absorbing plate 26 is positioned and fixed to the upper end surface of the translucent plate 24 on the private side by elastic means (not shown) (noted as 30 in FIGS. 2 to 3) disposed in the flange portion.

  By setting it as said structure, the sound-absorbing device 10 for roads can be formed easily. Further, by providing the light transmitting plate 24 below the thin sound absorbing plate 26, it is possible to prevent the traveling sound from reaching the private side while ensuring the brightness of the driver's field of view.

  The road sound absorbing device 10 according to the present invention is a schematic diagram showing a main part of the installation structure of the road sound absorbing device 10 as seen from the vehicle traveling direction of the BB cross section of the road sound absorbing device 10 in FIG. The thin sound absorbing plate 26 can be easily disposed by the joint adapter 28 interposed between the upper end of the plate 24 and the thin sound absorbing plate 26. The assembly process of the joint adapter 28 and the thin sound absorbing plate 26 will be described below.

  The configuration of the joint adapter 28 will be described with reference to FIGS. 3 to 5, which are schematic diagrams showing cross sections of the joint adapter 28. The joint adapter 28 is connected to the lip portion 12 by being hooked on the road side of the upper end of the translucent plate 24 shown in FIG. 3 and supporting the joint adapter 28 on the upper end of the translucent plate 24, The light transmitting plate 24 shown in FIG. 3 has an upper end on the upper end of the plate, a lower end of the thin sound absorbing plate 26 is guided from the road side to the private side, and is positioned on the private side of the spacer portion 16. And a tongue-shaped portion 18 that is connected and carries the lower end of the sound absorbing plate.

  In addition, the spacer portion 16 is in contact with at least a part of the upper end surface of the translucent plate 24 on the road side and occupies the part, and a side surface 16b standing on the private side of the spacer, Have

  Further, the joint adapter 28 includes a partition plate 1 at both ends, as shown in FIG. 5 which is a schematic view of the joint adapter 28 as viewed from above. As shown in FIG. 4B, the partition plate 1 has a lip portion 2, a spacer portion 6, and a side surface 6b having substantially the same shape as the joint adapter 28. Further, a partition portion 5 is provided at the lower end in the vertical direction of the side surface 6b so as to extend in a substantially horizontal direction and reach the flange portion 20a on the private side.

  Further, the partition plate 1 is fixed to a substantially L-shaped insertion portion 7 disposed so as to protrude from the joint adapter 28 to both ends in the vehicle traveling direction by fixing means 8, for example, rivets.

  The insertion portion 7 is inserted into a triangular space composed of the spacer portion 16, the bottom surface 16 a, and the side surface 16 b at both ends of the joint adapter 28. The structure in which the insertion portion 7 is inserted into the joint adapter 28 will be described in detail with reference to FIGS.

  In FIG. 4A, the region C between the spacer portion 16 and the lip portion 12 of the joint adapter 28, the side surface 16b constituting the spacer portion 16 and the region D near the tongue-shaped portion 18 are Respective groove-shaped portions 17a and 17b are formed.

  Moreover, in FIG.4 (b), the substantially L-shaped edge part of the insertion part 7 forms the convex-shaped parts 7a and 7b.

  As shown in FIG. 5, the convex portion 7 a of the insertion portion 7 is inserted into the groove shape portion 17 a of the joint adapter 28, and the convex shape portion 7 b of the insertion portion 7 is inserted into the groove shape portion 17 b of the joint adapter 28. The By setting it as said structure, the insertion part 7 provided with the partition plate 1 in an edge part as shown in FIG. 5 can be made to slide with respect to the joint adapter 28 in a elongate direction.

  In FIG. 6, which is a schematic top view of the state in which the joint adapter 28 is disposed on the upper plane of the translucent plate 24, the width dimension W <b> 1 of the partition plate 1 is the sound absorbing plate 22 and / or the translucent plate 24. It is desirable that the width is larger than the width dimension W2 of the gap between the side surface of the H and the web portion 20b of the H-shaped steel column.

  The process of forming the road sound absorbing device 10 shown in FIG. 1 using the joint adapter 28 will be described in detail with reference to the drawings. First, the lowermost sound absorbing plate 22 is received between the flanges 20a of the H-shaped steel column 20 shown in FIG. Next, an elastic means (not shown) (shown as 32 in FIG. 3) is inserted from the road side between the sound absorbing plate 22 and the flange portion 20a on the private side, and is pressed and positioned on the road side for fixing. .

  After repeating the above procedure to stack the sound absorbing plate 22 to an appropriate height, the translucent plate 24 shown in FIG. 3 is dropped onto the upper end of a sound absorbing plate (not shown) (shown as 22 in FIG. 1), and then elastic means 32 is inserted between the translucent plate 24 and the private side flange portion 20a from the road side, and is pressed and positioned on the road side to be fixed.

  Next, the joint adapter 28 is received between the flange portions 20a of the H-shaped steel column 20 shown in FIG. At this time, the lip portion 12 of the joint adapter 28 is inserted into the recess 24a provided at the upper end of the light transmitting plate 24 on the road side, and is supported by the upper end of the light transmitting plate 24 so as not to move toward the private side. To do.

  Next, as shown in FIG. 6, the insertion part 7 is slid and pulled out, the partition plates 1 at both ends are brought into contact with the web part 20b of the H-shaped steel column 20, and the fixing means 9, for example, a tapping screw is used. The joint adapter 28 and the insertion part 7 are fixed. Through the above steps, the partition plate 1 is fixed to the joint adapter 28 via the insertion portion 7.

  Next, the thin sound absorbing plate 26 shown in FIG. 3 is dropped between the H-shaped steel columns 20 from above while being received between the flange portions 20 a of the H-shaped steel columns 20. At this time, the lower end protruding portion 27 of the sound absorbing plate 26 is guided to the private side by the spacer portion 16 of the joint adapter 28 by dropping the thin sound absorbing plate 26 while pushing it from the road side toward the private side. After that, the movement of the thin sound absorbing plate 26 in the road side direction is restricted by the side surface 16b, so that the lower end of the thin sound absorbing plate 26 can be easily positioned on the private side.

  Finally, the elastic means 30 is inserted from the road side between the thin sound absorbing plate 26 and the flange portion 20a on the road side, and is pressed and positioned on the private side to be fixed.

  The lower end protrusion 27 is formed by bending and caulking to join a plurality of sheet metal members (not shown) constituting the thin sound absorbing plate 26 when the thin sound absorbing plate 26 is manufactured. . Even when the thin sound absorbing plate (not shown) having no lower end protrusion 27 is used, it can be easily guided and positioned by the joint adapter 28 to the private side by the same procedure.

  In the road sound absorbing device of the present invention, as shown in FIG. 3, the lower end protrusion portion 27 of the thin sound absorbing plate 26 dropped into the upper end of the light transmitting plate 24 in the above-described process is formed on the tongue-shaped portion 18 of the joint adapter 28. Installed on top.

  When the joint adapter 28 is not used, the load of the thin sound absorbing plate 26 is linearly applied from the lower end protrusion 27 to the upper end surface of the translucent plate 24. On the other hand, by arranging the joint adapter 28 between the light transmitting plate 24 and the thin sound absorbing plate 26, the load of the thin sound absorbing plate 26 is applied to the tongue portion 18 of the joint adapter 28 and the bottom surface 16a. Are distributed on a plane consisting of

  As described above, since the load of the thin sound absorbing plate 26 is dispersed by using the joint adapter 28, it is avoided that the upper end surface of the light transmitting plate 24 receives a linear load. As an example, a thin plate of an aluminum alloy It is possible to protect the upper end surface of the translucent plate 24 formed by

  In the case where the sound absorbing plate 22, the light transmitting plate 24, and the thin sound absorbing plate 26 are stacked to form the road sound absorbing device 10 by the above-described procedure, the joint adapter 28 is connected to the light transmitting plate 24 and the thin sound absorbing device 10. By interposing between the sound absorbing plate 26, it is possible to easily perform the operation of placing the thin sound absorbing plate 26 on the upper end of the light transmitting plate 24.

  Further, by forming the road sound absorbing device 10 shown in FIG. 1 by using the joint adapter 28 in the above-described procedure, the thin sound absorbing plate 26 can be easily and stably rendered beautiful from the private side. It becomes possible to arrange | position to.

  Specifically, the sound absorbing plate 22 generally includes a decorative plate (not shown) similar to the thin sound absorbing plate 26 on the private side, and conceals the private side of the H-shaped steel column 20. As shown in FIG. 3, the thin sound absorbing plate 26 is installed above the sound absorbing plate 22 with a light transmitting plate 24 interposed therebetween.

  When the joint adapter 28 is not used, it is difficult to position the lower end of the thin sound absorbing plate 26 shown in FIG. 1 to the upper end of the light transmitting plate 24, and the thin sound absorbing plate 26 shown in FIGS. 1 is provided on the private side, and a decorative plate (not shown) provided on the private side of the sound absorbing plate 22 of FIG. 26b, it is difficult to arrange the same, and the aesthetic appearance is impaired.

  Further, it is difficult to position the lower end of the thin sound absorbing plate 26 shown in FIG. 3 at the upper end of the light transmitting plate 24, and the lower end of the thin sound absorbing plate 26 is swung by wind or the like, and the light transmitting plate 24 Noise is generated by colliding with the upper end, the flange 20a of the H-shaped steel column 20, etc., or the lower end of the sound absorbing plate 26, the upper surface of the light transmitting plate 24, the flange 20a of the H-shaped steel column 20, etc. are damaged. Resulting in.

  If the joint adapter 28 is used, the lower end of the thin sound absorbing plate 26 can be placed on the upper end of the translucent plate 24 with the vertical direction and the thickness dimension direction easily positioned.

  Specifically, as shown in FIG. 3, the lower end of the thin sound absorbing plate 26 is positioned by the spacer portion 16 (16a, 16b) of the joint adapter 28 in the thickness dimension direction, and the lower end of the thin sound absorbing plate 26 in the vertical downward direction. It is positioned by the tongue-shaped part 18 which the joint adapter 28 has. As described above, the thin sound absorbing plate 26 is arranged in the traveling direction without causing vertical displacement.

  Further, as described above, the length of the translucent plate 24 and the sound absorbing plate 26 in the vehicle traveling direction is set slightly shorter than the distance between the H-shaped steel columns 20, so that the web of the columns 20 when installed. A gap is generated between the portion 20b and the side surface of each panel member.

  More specifically, in the sound absorbing device of the present invention, the light transmitting plate 24 is positioned on the road side and the sound absorbing plate 26 is pressed and positioned on the private side, so that the space between the front surface of the sound absorbing plate 26 and the flange portion 20a (see FIG. 2). (Shown as region E) and a space (shown as region F in FIG. 6) between the flange portion 20a and the rear surface of the light transmitting plate 24 is between the web portion 20b of the support column 20 and the side surface of each panel member. Are communicated through a gap (shown as a region G in FIG. 6).

  When the region E and the region F communicate with each other, the traveling sound generated on the road side reaches the private side through the region G.

  As the configuration described above, the partition plate 1 inserted into the joint adapter 28 is pulled out until it comes into contact with the web portion 20b of the H-shaped steel column 20, so that a space between the front surface of the thin sound absorbing plate 26 and the flange portion 20a is obtained. The space between the rear surface of the translucent plate 24 and the flange portion 20a is partitioned by the partition plate 1 in the region G.

  As described above, in FIG. 6, the width dimension W1 of the partition plate 1 is larger than the width dimension W2 of the gap between the side surface of the sound absorbing plate 22 and / or the light transmitting plate 24 and the web portion 20b of the H-shaped steel column. Therefore, the road-side traveling sound can be prevented from passing through the gap and reaching the private side through this space.

  In FIG. 5, the corner R of the partition plate 1 that contacts the web portion 20 b of the H-shaped steel column 20 is a corner R formed between the flange portion 20 a and the web portion 20 b shown in FIG. 6. In order to avoid interference with the shape, a chamfered shape is provided in advance, but the chamfered shape is not provided in advance, and in order to reduce the gap, it is attached in accordance with the size of the corner R dimension of the H-shaped steel used. The partition plate 1 may be processed on site.

  As shown in FIG. 2, the sound absorbing plate member 26 a constituting the thin sound absorbing plate 26 is fixed to the flange 20 a on the private side of the H-shaped steel column 20 by the elastic means 30. As described above, the decorative plate 26b fixed to the sound absorbing plate member 26a is arranged to be flush with the thickness direction of the thin sound absorbing plate 26.

  With the above configuration, the thin sound absorbing plate 26 can be positioned and fixed in the vertical vertical direction and the thickness dimension direction, and the road sound absorbing device 10 is configured using the thin sound absorbing plate 26. To improve the appearance from the private side of the road, and to prevent the generation of noise due to contact between members constituting the road sound absorbing device 10 and damage to the members, thereby extending the life of the road sound absorbing device 10. it can.

  Further, the thin sound absorbing plate 26 is thinner than the sound absorbing plate 22, is light and inexpensive, and the installation work of the sound absorbing plate 26 and the elastic means 30 can be performed from the road side. This is effective in reducing the installation cost of the road sound absorbing device 10.

  In the case where the thin sound absorbing plate 26 is a thin sound absorbing plate (not shown) that does not have the lower end protrusion 27, the joint adapter 28 can be used in the same manner, and the road sound absorbing device 10 described above can be used. The effects of improving the appearance from the private side, preventing the generation of noise and damage to members, extending the life of the sound absorbing device 10 for roads, and reducing the installation cost can be obtained in the same manner. is there.

  The elastic means 30 is preferably a spring. As an example, if a leaf spring is used, as shown in FIGS. 2 to 3, the work of fitting between the flange 20 a of the H-shaped steel column 20 and the thin sound absorbing plate 26 is easily and quickly performed from the road side. Can do.

  In addition, about the scenery from the road side, since the thin sound absorption board 26 is pressed and fixed to the private side, the sound absorption board 22 shown in FIG. 1 which is the schematic diagram which looked at the sound absorption apparatus 10 for roads from the road side. And the road side surface of the translucent plate 24 and the road side surface of the sound absorbing plate member 26a are not flush with each other.

  However, the position where the thin sound absorbing plate 26 is disposed is almost the uppermost portion of the road sound absorbing device 10 and is hardly visible to the driver, and there is no problem as compared with the above-described effects.

  In the present embodiment, the length of the joint adapter 28 has been described as a length that can cover the upper end surface of one translucent plate 24 with one joint adapter 28. The joint adapter 28 has a length divided into an appropriate number, and may be arranged side by side in the traveling direction on the upper end of one light transmitting plate 24.

  Even in the above case, the joint adapter 28 having an appropriate number of lengths is connected to the recess 24a provided at the upper end of the light transmitting plate 24 on the road side, as shown in FIG. 28 lip portions 12 can be inserted and supported at the upper end of the translucent plate 24 so as not to move toward the private side, and the effect of providing the joint adapter 28 is also the same. can get.

  Further, in the above case, the partition plate 1 is disposed on the joint adapter 28 disposed at both ends in the vehicle traveling direction among the joint adapters 28 of an appropriate number of lengths, and the above-described gap (paragraph) By partitioning (see “0061”), it is possible to similarly obtain an effect of suppressing the road-side traveling sound from reaching the private side through the gap.

  In the above description, the partition plate 1 is fixed to the joint adapter 28 body via the insertion portion 7. However, the member to which the partition plate 1 is fixed may be another member, and is in a fixed state. If it is possible to partition the gap described above, it is possible to suppress the road-side traveling sound from reaching the private side through the gap.

  As mentioned above, although the embodiment about the sound-absorbing device for roads of the present invention has been described, the present invention is not limited to this, and it is within the scope not departing from the spirit and teaching described in the claims and the description. It will be understood by those skilled in the art that variations and improvements can be obtained.

DESCRIPTION OF SYMBOLS 1 Partition plate 2 Lip part of the partition plate 5 Partition part 6 Spacer part of the partition plate 1 6b Side surface 7 Insertion part 7a Road side convex shape part 7a of insertion part Private side convex shape part 8 Fixing means (rivet)
9 Fixing means (screw)
DESCRIPTION OF SYMBOLS 10 Road sound absorber 12 Joint adapter lip part 16 Joint adapter spacer part 16a Spacer part bottom face 16b Spacer part side face 17a Joint adapter road side groove part 17b Joint adapter private side groove part 18 Joint adapter tongue part 20 H-shaped steel strut 20a H-shaped steel strut flange portion 20b H-shaped steel strut web portion 22 Sound absorbing plate 24 Light transmitting plate 24a Light transmitting plate upper road side recess 25 Light transmitting plate transparent plate 26 Thin sound absorbing plate 26a Thin sound absorbing plate Sound absorbing plate member 26b decorative plate of thin sound absorbing plate 27 lower end protrusion of thin sound absorbing plate 28 joint adapter (main body)
30 Elastic means for thin sound absorbing plate 32 Elastic means for light transmitting plate and lower sound absorbing plate W1 Width dimension of partition plate W2 Width dimension of gap G Area showing gap

Claims (6)

It is installed between the roadway and the private land at both ends of the road, shielding the sound from the roadway,
A plurality of H-shaped steel columns that stand at predetermined intervals in the direction of travel on both sides of the road;
A sound absorbing device including a sound absorbing plate that forms walls in a state where both side edges are received by the flange portions of the columns,
The sound absorbing plate is attached with a decorative plate that covers most of the support and the side of the sound absorbing plate, and is positioned on the private side by elastic means that is disposed in the flange portion and pushes the side of the road. A sound absorbing device. The sound absorbing device is a sound absorbing device in which at least one sound absorbing plate is stacked on at least one light transmitting plate forming a wall surface in a state where both side edges are received by the flange portion of the column. A device,
2. The sound absorbing device according to claim 1, wherein the translucent plate is positioned on the road side by an elastic means that is disposed in the flange portion and pushes a side surface of a private area. Among the translucent plates, a joint adapter for carrying a sound absorbing plate is disposed on the upper end of the uppermost translucent plate,
The joint adapter is
A lip portion that is hooked on the road side of the upper end of the translucent plate to support the joint adapter on the upper end of the translucent plate;
A spacer portion connected to the lip portion, guiding the lower end of the sound absorbing plate from the road side to the private side on the upper end of the translucent plate on the upper end of the plate, and positioning;
The sound absorbing device according to claim 2, wherein the sound absorbing device is integrally formed with a tongue-like portion that is connected to a private side of the spacer portion and carries a lower end of the sound absorbing plate. At both ends, a space formed between the road side surface of the sound absorbing plate and the road side flange portion and the web portion of the column, and the private side surface of the translucent plate and the private side flange portion and the web portion of the column It has a partition plate that partitions the space between them,
The sound-absorbing measure according to claim 2 or 3, characterized by the above. The spacer portion is at least a bottom surface that abuts and occupies a part of the upper end surface of the translucent plate on the road side;
A side surface standing on a private side of the spacer,
The sound absorbing device according to claim 4. The sound absorbing plate elastic means is a spring, and the spring can be mounted from the road side.
The sound absorbing device according to claim 1, wherein: