JP2003213627A - Fitting structure of sound insulation plate in soundproof wall for road - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fitting structure of a sound insulation plate in a soundproof wall for a road, capable of simply and quickly replacing and repairing a transparent sound insulation plate without any influence upon the fitting state of another sound insulation plate. <P>SOLUTION: The sound insulation plates are disposed and applied so that the ends in the horizontal direction do not overlap the end of a sound insulation plate adjacent to the road-way side of a support, and fixed by a pressing member fitted to the support with fittings from the road-way side. The pressing member is formed of a pair of pressing pieces for individually fixing the ends of both sound insulation plates on the road-way side surface of the support, and the paired pressing members are disposed to fix only the ends of only one sound insulation plate. The center side region of the support of each pressing member is fixed to the support alternately in the vertical direction with the fittings. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to a technical field of a road soundproof wall constructed along a road, in which a transparent sound insulating plate is attached to a visual range of a driver of a vehicle traveling on the road. .

[0002]

2. Description of the Related Art Hitherto, it has been widely known and widely adopted to employ a transparent sound insulating plate for a road soundproof wall. For example, (1) Japanese Patent Laid-Open No. 6-33425 discloses that a peripheral frame member is preliminarily attached to the four circumferences of a sound insulating plate made of a transparent synthetic resin plate or the like, and mounting bolts are set up on the road side surface of a prop to prepare the perimeter. There is disclosed a soundproof wall in which a mounting hole (bolt hole) provided in advance in a frame member is fitted to a bolt of the column, and the nut is tightened to mount the soundproof wall. (2) In Japanese Patent Laid-Open No. 5-187004, the vertical sides of the sound insulating plates made of transparent acrylic glass or the like are stacked adjacent to each other on the road side surface of the support, and are commonly fixed by bolts screwed into the support from the road side. A noise barrier for roads is disclosed. (3) In Japanese Patent Laid-Open No. 10-237829, through holes are preliminarily provided on the four circumferences of a sound insulating plate made of a transparent synthetic resin plate, a glass plate or the like, and the pillars and the side surfaces of the furrows connecting the upper and lower sides of the adjacent pillars are formed on the road side surfaces. Prepare a pin with a flange-shaped head by standing it up, fit the through hole of the sound insulating plate to the pillar and the pin of the furring strip, and attach the supporting member from the road side to the head of the pin protruding from the through hole of the sound insulating plate. A sound barrier that is attached and fixed is disclosed.

[0003]

Recently, as illustrated in FIG. 1, a transparent sound insulating plate 2 is attached to a lower portion (lower half portion), which is a driver's view range of a vehicle traveling on a road 1, to provide a view field. The soundproof panel 3 is attached to the upper part (upper half) to enhance the sound insulation and sound absorption effect, and the soundproof wall is curved so as to cover the road side as a whole, and the noise generated on the road is confined. There is a demand for a soundproof wall having a structure that enhances the soundproof effect.

The prior arts introduced in the above (1) to (3) all disclose a structure in which a transparent sound-insulating wall is adopted and is attached to the pillar from the road side.

However, as a means for attaching a sound insulating plate made of a transparent synthetic resin plate, a glass plate or the like to the support, a frame material or a supporting material is attached to the four circumferences of the sound insulating plate as in the above-mentioned prior art (1) or (3). And, for example, when the surface of the pillar 4 on the side of the roadway is curved as illustrated in FIG. 1, the frame material or the support material also needs to be pre-curved with the same curvature as the pillar 4, It puts a great deal of effort on the site, and it is troublesome to work on site.

Further, as in the above-mentioned prior art (2),
It is rational to have a structure in which the horizontal ends of two adjacent sound insulation plates are superposed on the road side surface of the pillar, and are commonly fixed by bolts screwed into the pillar from the road side.
For example, if the soundproof wall is damaged during a service such as a car accident during operation and the bolts are loosened and removed for replacement and repair, not only the sound insulation plates that need to be replaced but also sound insulation plates that are sound and useless can be removed. It is difficult to handle because it is disassembled, and the workability is poor.

Therefore, an object of the present invention is to easily install and remove a transparent sound insulating plate from the road side, and the sound insulating plate that needs to be replaced affects only that, that is, the installation state of other sound insulating plates. It is an object of the present invention to provide a sound insulation plate mounting structure for a road soundproof wall, which is configured so that it can be removed and replaced and repaired quickly and easily without affecting.

The next object of the present invention is not only when the support columns are H-shaped steel and channel steel, but also when they are square tubes,
It is an object of the present invention to provide a sound insulating plate mounting structure for a road soundproof wall, which can appropriately mount the sound insulating plate even if the support pillar is curved.

[0009]

As a means for solving the above-mentioned problems, a sound insulation plate mounting structure for a road soundproof wall according to the invention described in claim 1 has a structure in which the sound insulation plate for the road soundproof wall is supported by a pillar. In the structure to be attached to the sound insulation plate, the horizontal end of the sound insulation plate is applied to the roadway side surface of the support pillar in such a manner that the ends of the adjacent sound insulation plates do not overlap each other.
It is fixed by a pressing member that is attached to the pillar from the road side by a mounting bracket, and the pressing member is composed of a pair that separately fixes the end portions of two sound insulating plates that are adjacent to each other on the road-side surface of the pillar. , The pair of holding members are arranged so as to fix only one end of one sound insulating plate, and the parts of the holding members located on the center side of the columns are alternately arranged vertically and fixed to the columns by the mounting brackets. It is characterized by being.

According to a second aspect of the present invention, in the structure for mounting a sound insulating plate in the soundproof wall for a road according to the first aspect, the pressing member is applied to the roadway side surface of the pillar, and two adjacent sound insulating members are provided. It is configured as a small piece that holds down only one end of the plate, and is characterized by being bolted in a zigzag arrangement alternately in the vertical direction of the column.

According to a third aspect of the present invention, in the structure for mounting the sound insulating plate in the soundproof wall for a road according to the second aspect, the pressing member as the small piece is a surface of the pillar on the roadway side with the bolt fastening position as a center. It is characterized in that it is configured to be rotatable in a plane parallel to.

According to a fourth aspect of the present invention, in the structure for mounting the sound insulating plate in the soundproof wall for a road according to the first aspect, the pressing member is applied to the surface of the prop on the side of the road, and two adjacent sound insulating members are applied. Only one end of the plate over its entire length,
Alternatively, it is configured as a long object which is continuously pressed into a length obtained by dividing the entire length into a plurality of parts, and the portion located on the center side of the column is bolted in an alternating arrangement in the vertical direction.

According to a fifth aspect of the present invention, in the structure for mounting the sound insulating plate in the soundproof wall for a road according to the first aspect, the pressing member is applied to the surface of the prop on the side of the road, and two adjacent sound insulating members are applied. It is composed of a combination of a long object that holds only one end of the plate over its entire length or a length that is divided into multiple lengths and a small piece that holds the other end, each of which is the center of the column. It is characterized in that the portion located on the side is bolted in an alternating arrangement in the vertical direction of the support column.

According to a sixth aspect of the present invention, in the mounting structure of the sound insulating plate in the soundproof wall for a road according to any one of the first to fifth aspects, the decorative member for covering the pressing member bolted to the support post is a support post. It is characterized in that it is attached to the surface on the side of the road.

According to a seventh aspect of the present invention, in the sound insulating plate mounting structure for a road soundproof wall according to the sixth aspect, the decorative member is provided at a plurality of positions where the sound insulating plate is not attached by the pressing member from the road side. It is characterized by being attached by bolts.

According to an eighth aspect of the present invention, in the mounting structure of the sound insulating plate in the soundproof wall for a road according to any one of the second to seventh aspects, the pressing member is provided between the pillar and the surface on the roadway side. It is characterized by being bolted through a spacer that is slightly shorter than the total length of the thickness of the sound insulation plate and the thickness of the elastic material.

According to a ninth aspect of the present invention, in the structure for mounting a sound insulating plate on a soundproof wall for a road according to the sixth or seventh aspect, the decorative member is provided with a thickness of the sound insulating plate between the surface of the prop and the road side. It is characterized by being bolted through a spacer that is slightly longer than the sum of the thickness of the elastic material and the thickness of the elastic material.

According to a tenth aspect of the present invention, in the structure for mounting the sound insulating plate in the soundproof wall for a road according to any one of the second to ninth aspects, the bolt hole of the pillar is located at the center of the surface of the pillar on the roadway side. It is characterized in that they are arranged in a line in the vertical direction.

The invention according to claim 11 is defined by claims 1 to 10.
In the mounting structure of the sound insulating plate in the road soundproof wall described in any one of 1, the horizontal cross section of the support column is a square shape.

The invention according to claim 12 is the invention according to claims 1 to 11.
In the mounting structure of the sound insulating plate in the soundproof wall for road according to any one of 1 to 3, the horizontal section of the pillar is characterized in that the surface on the roadway side is a narrow square shape.

The invention according to claim 13 is the invention according to claims 1 to 12.
In the mounting structure of the sound insulating plate in the soundproof wall for road described in any one of 1, the pillar has a shape curved toward the roadway side, and the horizontal end of the sound insulating plate is curved along the roadside surface of the curved pillar. It is characterized by being attached to the state.

The invention according to claim 14 is the invention according to claims 1 to 13.
In the mounting structure of the sound insulating plate in the soundproof wall for a road described in any one of, the horizontal cross section of the pillar is a square shape, the nut mounting hole is provided adjacent to the bolt holes provided at each bolting position, U that can be inserted through the nut mounting hole and can be mounted on the edge of the nut mounting hole by sandwiching the pipe wall
A clip nut made by fixing a nut to one side of a V-shaped clip is installed so that the center of the nut is aligned with the bolt hole at the bolting position on the inner surface of the pipe, and is screwed into the nut from the surface on the roadway side of the column. It is characterized in that the holding member or the decorative member is attached by the bolts that are removed.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, referring to the drawings,
Embodiments of the sound insulating plate mounting structure in the soundproof wall for a road according to the invention described in FIGS.

FIG. 1 shows an embodiment of a road soundproof wall in which a transparent sound insulating plate 2 made of polycarbonate or the like is attached to the lower half portion and a soundproof panel 3 is attached to the upper half portion. The pillar 4 in the range where the transparent sound insulating plate 2 in the lower half is attached is greatly curved toward the roadway side, and the sound insulating plate 2 is attached in a curved surface shape along the curved surface of the pillar 4. On the other hand, the support columns 4 in the range where the upper half of the soundproof panel 3 is attached are substantially linear, and the soundproof panel 3 is attached in a planar shape. Each of the sound insulation plate 2 and the soundproof panel 3 is configured to be attachable and detachable as work from the road side. Although the horizontal cross section of the pillar 4 shown in the drawing has a square shape, the present invention is not limited to this, and the existing H-shaped steel, grooved steel, and the like can be similarly used.

2 and 4, the end portions 2a on both sides in the horizontal direction of the transparent sound insulating plate 2 made of polycarbonate or the like are formed by the columns 4.
It is applied to the surface 4a on the side of the road with a slight spacing S at the center of the pillar 4 so that the end portions 2a, 2a of the two adjacent sound insulation plates 2, 2 do not overlap each other. Indicates that And the end portions 2a, 2a of the two sound insulating plates 2, 2
Is fixedly attached to the pillar 4 from the side of the road by the holding member 5 attached by the attachment fitting 6.

The pressing member 5 is applied to the surface 4a on the side of the road of the column 4, and the end portions 2a and 2a of the two sound insulating plates 2 and 2 adjacent to each other are fixed to the left and right separately 5A, 5A.
It is composed of B. The pair of pressing members 5A and 5B (or forming two groups) have only one end of the sound insulating plate, that is, 5A is the end 2a of the sound insulating plate 2 on the right side in FIGS. 2 and 4. , 5B are arranged in a staggered manner so that only the end portions 2a of the left sound insulating plate 2 are individually fixed. Each pressing member 5A, 5B has a portion located on the center side of the support column 4 mounted and fixed to the support column 4 by mounting brackets 6 in an alternating arrangement in the vertical direction (above,
(Invention according to claim 1). However, the mounting bracket 6 (or a bolt hole or a nut described later) is the surface 4 on the roadway side of the column 4.
They are arranged in a straight line (or in a line) in the vertical direction at the center of a (the invention according to claim 10).

The ends 2a on both sides in the horizontal direction of the transparent sound insulating plate 2 are in the form of the plate as they are, and there is no frame member or supporting member at all, and are directly fixed to the surface 4a on the road side of the column 4 by the pressing member 5. It Therefore, even if the support column 4 is curved, it is possible to fit the sound insulation plate 2 to the curved surface so that the sound insulation plate 2 can be fitted exactly, and the workability is excellent. On the other hand, the horizontal frame members 7 are attached along the upper and lower horizontal sides to reinforce the wind load. As illustrated in FIGS. 13 and 14, the bracket 10 is attached to the side surface of the support column 4 in advance by welding or the like, and the end portion of the horizontal frame member 7 is overlapped with the bracket 10, and the bolt 11 and the nut 12 are attached. It is firmly attached and fixed by fastening.

Next, as shown in FIGS. 3A and 3B, the pressing member 5 shown in use except for the decorative member in FIG. 2 displaces the bolt hole 8 to a central position near one vertical side. This is a small piece member in which only one piece is provided and a cylindrical spacer 9 is attached to the back surface of the bolt hole 8 in a series of arrangements on the back side surface. The pressing member 5 is, for example, vertical × horizontal × thickness 175 × 7.
It is a small piece that is as small as 0 × 6 mm and holds only one end of the sound insulation plate 2, and the pitch of the mounting brackets 6 provided in a line in the vertical direction at the center of the road-side surface 4a of the pillar 4 (approximately 200 mm).
mm).

On the premise of the above-mentioned dimensional conditions, in the embodiment of FIG. 2, each pressing member 5 as a small piece is applied to the road-side surface 4a of the support column 4 and two adjacent sound insulating plates 2 and 2 are provided. In order to press and fix only one of the ends 2a, 2a individually, they are arranged in a zigzag pattern of 180 ° diametrically opposite to each other around the position of the mounting bracket 6 in the up-down direction of the support column 4. It is configured to be firmly attached (claim 2
Invention described).

Therefore, for example, the sound insulation plate 2 on the right side in FIG.
In the case where the sound insulation plate on the right side is damaged and needs to be replaced, the sound insulation plate on the right side is removed by loosening only the pressing member 5A ... It is possible to remove and replace 2 and does not affect the mounting state of the left (other) sound insulation plate 2 at all.

The details of the mounting structure of the sound insulating plate 2 by the pressing member 5 are shown in FIG. End 2a of transparent sound insulation plate 2
An elastic material 13 such as a rubber sheet that allows expansion and contraction of the sound insulating plate 2 due to thermal expansion or the like is sandwiched between and the surface 4a of the pillar 4 on the side of the roadway and between the pressing member 5, and is used as a mounting bracket. The bolt 6 is screwed and fixed to the nut 14 of the column 4. The elastic material 13 located between the sound insulation plate 2 and the side surface 4a of the pillar 4 on the roadway is attached to the pillar in advance.
It is convenient in terms of work to attach the elastic material 13 between the sound insulation plate 2 and the pressing member 5 to the pressing member 5 in advance.

In order to show the existence and effectiveness of the elastic member 13, the pressing member 5 is provided between the support member 4 and the surface 4a on the side of the roadway of the sound insulating plate 2 as shown in FIG. It is fastened via a spacer 9 that is slightly shorter than the sum of the thickness (about 12 mm) and the thickness of the elastic material 13 (usually about 3 mm), and is bolted with a structure that does not result in a tightened state that is stronger than necessary. (Invention of Claim 8).

As shown in FIG. 2, a small member holding member 5 is attached in a staggered arrangement on the road-side surface 4a of the column 4, and a decorative member 15 for covering the landscape is provided as shown in FIG. 4 is attached to the road-side surface 4a (claim 6).
Invention described).

The decorative member 15 is attached to the support column 4 by utilizing a plurality of positions where the attachment of the sound insulation plate 2 by the pressing member 5 is omitted, as indicated by the symbol P in FIG. 2, for example. As shown in FIGS. 7A to 7C as an example of the decorative member 15, each position of the reference symbol P in FIG. 2 has a spacer 9 applied to the surface 4a on the roadway side of the support column 4 (FIG. 7C),
A work hole 17 is provided on the opposite side surface in a concentric arrangement with the hole of the spacer 9 (FIG. 7A). The decorative member 15 is attached by screwing the bolt 6 inserted from the working hole 17 through the hole of the spacer 9 into the nut 14 of the strut 4 from the road side as shown in FIG. 6 (claim 7).

The decorative member 15 has the end 2a of the sound insulation plate 2
The blinds 19 made of CR rubber are attached to the grooves at both ends and pressed. The spacer 9 of the decorative member 15 is slightly longer than the sum of the thickness of the sound insulating plate 2 and the thickness of the elastic material 3 between the spacer 4 and the surface 4a of the strut 4 on the roadway side. The mounting is performed with a structure that does not result in a tightened state that is stronger than necessary (the invention according to claim 9). After the bolt 6 is screwed in, the work hole 17 of the decorative member 15 is closed by the rubber cap 18 (FIG. 6). Reference numeral 30 in FIG. 7C is a size and shape that accommodates the head of the bolt 6 to which the pressing member 5 is attached as shown in FIG. 5 and does not cause interference, and attaches the pressing member 5 to the civil side surface of the decorative member 15. It is an escape hole provided in the same arrangement as the bolt 6.

FIG. 8 shows a structure in which the soundproof panel 3 is attached to the surface 4a of the support column 4 on the road side. The horizontal end 3a of the soundproof panel 3 is applied to the surface 4a of the support 4 on the side of the roadway, and is pressed by the blinding material 19 of the decorative member 15, and the bolt 6 inserted through the working hole 17 of the decorative member 15 is used to support the support 4 It is screwed into the nut 14 and is firmly attached. Closing the working hole 17 with the rubber cap 18 after the bolting work is the same as in the case of FIG.

Next, FIG. 4 shows an embodiment of a mounting structure using the pressing members 5 (5A, 5B) also as small pieces.
The decorative member is excluded from the illustration. It is characterized by a structure in which two bolts 6, 6 are used to fix the positions of the upper and lower portions near the vertical side on one side of the pressing member 5. Others are common to the configuration of FIG.

Next, in FIGS. 9 and 10, a pair of pressing members 20A and 20B are applied to the surface 4a of the support 4 on the side of the roadway, and the two sound insulating plates 2 and 2 adjacent to each other have their one ends. It shows an embodiment configured as a long object that holds only 2a over its entire length or continuously into a length obtained by dividing the entire length into a plurality of pieces. The concavo-convex portions which are located on the center side of the support column 4 and which mesh with each other alternately are fixed by being fixed by bolts 6 in alternate arrangement in the vertical direction (the invention according to claim 4).

That is, the mounting structure of the present invention can be implemented by appropriately designing the shape, structure and size of the pressing member in each case. The pressing members 20A and 20B
Also in the case of, the bolt 6 is fastened between the surface 4a of the column 4 on the side of the roadway by interposing the spacer 9 slightly shorter than the total length of the thickness of the sound insulating plate 2 and the thickness of the elastic material 13, The structure is such that it will not be tightened more than necessary. Therefore, the planar shape of the pressing members 20A and 20B is formed in a Z shape having a stepwise rise as shown in FIG. 10, and allows the spacer 9 to intervene.

Next, FIG. 11 shows a mounting structure in which the holding member 5 as the small piece shown in FIG. 2 or 4 and the holding member 20A (or 20B) as the long member shown in FIG. 10 are combined. (The invention according to claim 5).

The pressing member 20A (or 2 as a long member)
0B) is applied to the roadway-side surface 4a of the support column 4 and is continuous with only one end 2a of the two adjacent sound insulating plates 2 over the entire length or by dividing the total length into a plurality of lengths. And hold it. The pressing member 5 as a small piece that presses the other end portion 2a is also fixed by fixing bolts 6 at the portions located on the center side of the support columns 4 alternately arranged in the vertical direction of the support columns 4.

Next, FIG. 12 shows a different embodiment of the mounting structure using the pressing member 5 as a small piece. In the case of the present embodiment, each pressing member 5 has a rounded elliptical shape (or may have a triangular shape, a quadrangular shape, etc.), and one side thereof is rotatably stopped by a bolt 6 (claims). Three
Invention described). The pressing member 5 is configured to be rotatable in a plane parallel to the road-side surface 4a of the column 4 around the bolted position. Therefore, the space between the vertically adjacent pressing members 5, 5 is such that each pressing member 5 can be rotated about 180 ° and used like a clip for stopping the backing plate of the frame.

Therefore, in the case of this embodiment, when the sound insulating plate 2 is attached or replaced, the bolt 6 is loosened a little and then rotated by 180 ° as shown by the dotted line to hold down the pressing member 5. It is possible to carry out the usage method of fixing the sound insulating plate 2 by releasing it or rotating it again by 180 °, and it is possible to save the trouble of attaching and detaching the pressing member 5 itself.

By the way, as the columns 4 of the soundproof wall for roads, H-shaped steel, grooved steel, square steel pipes, etc. have been conventionally used in the right places. Post 4 of each illustrated embodiment
Is the sound insulating material 2 and the soundproof panel 3 and is the surface 4 of the pillar 4 on the side of the roadway.
An example (an invention according to claim 11) in which a so-called square tube having a horizontal horizontal section is used is shown on the condition that the tube is attached to a.

In particular, the embodiment shown in FIG. 13 is an example in which a flat support 4 having a narrow road surface 4a (for example, about 150 mm) and a large depth dimension (for example, 350 mm) is used. There is (the invention according to claim 12). This prop 4
Has a rational structure that dilutes the presence of the pillars seen from the side of the roadway, enhances the scenery, and has a large strength against the wind load in the out-of-plane direction that acts on the soundproof wall.

The problem with using the square (square tube) column 4 is how to prepare the nut 14 required for bolting the holding member 5 and the decorative member 15 on the inner surface of the square tube. The solution is shown in FIG. 15 and FIG.

That is, the bolt holes 21 are provided at a predetermined pitch at each bolting position at the center position of the surface 4a on the roadside of the square (square tube) shaped support column 4. Then, the bolt hole 21
A nut mounting hole 22 having a relatively large diameter (diameter of about 60 mm, for example) is provided adjacent to. On the other hand, a U-shaped clip 23 having a size and shape that can be inserted through the nut mounting hole 22 and capable of elastically sandwiching the pipe wall of the column 4 and mounting it on the edge of the nut mounting hole 22. A clip nut 25 formed by fixing the nut 14 to one surface of the is preferably used.

The clip nut 25 is inserted through the nut mounting hole 22 so that the nut 14 is on the inside of the pipe, and is installed so that the bolt hole 21 at the bolting position and the center of the nut 14 are aligned. The installation state is shown in FIG. On the surface of the clip 23 opposite to the surface on which the nut 14 is fixed, there is provided a bolt through hole 24 having a size and shape such that its center coincides with the screw hole of the nut 14 and the bolt 6 can be inserted and removed. There is. Therefore, after the nut 14 is prepared on the pipe inner surface side of the strut 4 using the clip nut 25 as described above, the nut 14 is prepared from the road side.
The bolt 6 can be screwed in to securely attach and fix the pressing member 5 and the decorative member 15 (the invention of claim 14).

Of course, the mounting structure of the present invention can be more easily carried out without the problem of preparation of nuts when H-section steel or groove-section steel is used without using square tubes as the columns 4. Of.

[0050]

According to the present invention, the structure for mounting the sound insulating plate in the soundproof wall for a road according to the present invention may have any of a H-shaped steel, a grooved steel and a square-shaped horizontal cross section. Further, even when the roadside surface of the pillar is curved, the work of attaching and removing the transparent sound insulating plate can be easily and efficiently performed from the roadside without any change. Moreover, the sound insulation plate that needs to be repaired, such as replacement, can be removed and replaced easily without any influence on the sound insulation plate, that is, without affecting the mounting state of other sound insulation plates.

According to the invention described in claims 8 and 9,
Since the spacer is interposed at the bolt fixing position, the sound insulation plate is attached to the support column with an appropriate pressing force, and the stable attachment state is achieved.

According to the eleventh aspect of the present invention, since the pillar is formed into a square shape, the presence of the pillar is diluted with the sound insulation wall by the H-shaped steel pillar that is conventionally used for road noise barriers. It has the effect of creating a smart beauty.

In particular, as in the invention of claim 12,
When the cross section of the prismatic pillar has a narrow width on the side of the roadway, the presence of the pillar seen by passengers of the vehicle can be further reduced.

Further, according to the invention of claim 14,
Even if the pillar has a closed cross section, that is, a prismatic shape, it is possible to easily attach and remove only a specific sound insulation plate from the road side with bolting means with commercially available clip nuts and bolts just by making holes in the pillar To do.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a road soundproof wall in which the present invention is implemented.

FIG. 2 is an elevational view showing an example of a sound insulating plate mounting structure excluding a decorative plate.

3A and 3B are a front view and a side view showing an example of a pressing member.

FIG. 4 is an elevational view showing an example in which a sound insulating plate is attached differently, excluding a decorative plate.

5 is an enlarged cross-sectional view taken along the line VV of FIG.

6 is an enlarged cross-sectional view taken along the line VI-VI of FIG.

7A, 7B and 7C are a front view, a side view and a rear view of a decorative member.

8 is an enlarged cross-sectional view taken along the line VIII-VIII of FIG.

FIG. 9 is a plan view showing a different example of a sound insulating plate mounting structure.

FIG. 10 is an elevational view of FIG.

FIG. 11 is an elevational view showing still another example of the sound insulating plate mounting structure.

FIG. 12 is an elevational view showing still another example of the sound insulating plate mounting structure.

FIG. 13 is an enlarged cross-sectional view taken along the line III-III of FIG.

14 is a cross-sectional view taken along the line IV-IV of FIG.

FIG. 15 is a perspective view illustrating a procedure for attaching a clip nut to a column.

FIG. 16 is a cross-sectional view showing a state in which a clip nut is attached to a column.

[Explanation of symbols]

2 sound insulation board 4 props 4a Edge of sound insulation plate 6 Mounting bracket (bolt) 5 holding member 20A long holding member 20B Long pressing member 15 Cosmetics 9 Spacer 22 Nut mounting hole 23 clips 14 nuts 13 Elastic material

   ─────────────────────────────────────────────────── ─── Continued front page    (71) Applicant 000225201             Nasu Electric Iron Works Co., Ltd.             1-1-14 Shinjuku, Shinjuku-ku, Tokyo (72) Inventor Masataka Tozawa             3-2-101 Dewano, Kawasaki-ku, Kawasaki-shi, Kanagawa (72) Inventor Kazuhiko Kagawa             4-15-14 Sekimae, Musashino City, Tokyo (72) Inventor Takuya Koyama             1-5-21-1201 Kugenuma, Fujisawa City, Kanagawa Prefecture (72) Inventor Hidefumi Yoshida             105-3 Tsutsumi, Chigasaki City, Kanagawa Prefecture (72) Inventor Yoshiki Wakabayashi             2-153-4 Kariyacho, Ushiku City, Ibaraki Prefecture (72) Inventor Naohiro Sata             4-6-10 Sakushindai, Hanamigawa-ku, Chiba City, Chiba Prefecture             304 F-term (reference) 2D001 BA02 BB01 CA01 CB01 DA04

Claims (14)

[Claims] 1. In a structure for mounting a sound insulating plate in a soundproof wall for a road to a support, the end of the sound insulating plate in the horizontal direction does not overlap the ends of adjacent sound insulating plates to the roadway side surface of the support. It is applied in an arrangement and is fixed by a pressing member attached to the pillar from the road side by a mounting bracket, and the pressing member separates the ends of two sound insulating plates adjacent to each other on the road side surface of the pillar. The pressing members forming a pair are arranged so as to fix only one end of one sound insulating plate, and the parts of the pressing members located on the center side of the columns are alternately arranged in the vertical direction. A sound insulating plate mounting structure for a road soundproof wall, characterized in that it is fixed to a pillar by a mounting bracket. 2. The pressing member is configured as a small piece that is applied to the roadside surface of the support pillar and presses only one end of two adjacent sound insulation plates, and is alternately staggered in the vertical direction of the support pillar. The structure for mounting a sound insulating plate in a road soundproof wall according to claim 1, wherein the sound insulating plate is bolted in an arrangement. 3. The pressing member as the small piece is configured to be rotatable in a plane parallel to the surface of the support column on the side of the roadway around the bolted position.
The sound insulation board mounting structure for the road noise barrier described in. 4. The pressing member is applied to the surface of the pillar on the side of the roadway, and only one end of two adjacent sound insulation plates is continuous over its entire length or a length obtained by dividing the total length into a plurality of lengths. 2. A sound insulating plate in a soundproof wall for a road according to claim 1, wherein the sound insulating plate is configured as a long object to be pressed and held, and a portion located on the center side of the pillar is bolted in an alternating arrangement in the vertical direction. Mounting structure. 5. The pressing member is applied to the surface of the support column on the side of the roadway, and only one end portion of two adjacent sound insulation plates extends over its entire length, or is continuous in a length obtained by dividing the total length into a plurality of parts. It is composed of a combination of a long object to be pressed with the other end and a small piece to press the other end, and each of them is characterized in that the part located on the center side of the pillar is bolted in an alternating arrangement in the vertical direction of the pillar. The structure for mounting a sound insulation plate in a soundproof wall for a road according to claim 1. 6. A road member according to any one of claims 1 to 5, characterized in that a decorative member for covering the pressing member bolted to the support pillar is attached to the surface of the support pillar on the side of the roadway. Sound insulation board mounting structure for soundproof walls. 7. The soundproof wall for a road according to claim 6, wherein the decorative member is bolted from the roadway side to a plurality of positions where the sound insulating plate is not attached by the pressing member. Sound insulation plate mounting structure in. 8. The pressing member is bolted to the surface of the support column on the side of the roadway with a spacer slightly shorter than the total length of the thickness of the sound insulation plate and the thickness of the elastic material. The mounting structure of the sound insulating plate in the road soundproof wall according to any one of claims 2 to 7. 9. The decorative member, between the surface of the pillar on the side of the roadway,
The sound insulating plate for a road noise barrier according to claim 6 or 7, wherein the sound insulating plate is bolted through a spacer slightly longer than the sum of the thickness of the sound insulating plate and the thickness of the elastic material. Construction. 10. The bolt holes of the support columns are arranged in a line in the vertical direction at the center of the surface of the support columns on the side of the roadway, and the bolt holes are provided in one row. Sound insulation board mounting structure for road noise barriers. 11. The structure for mounting a sound insulating plate in a soundproof wall for a road according to claim 1, wherein a horizontal cross section of the pillar has a rectangular shape. 12. A structure for mounting a sound insulating plate in a soundproof wall for a road according to claim 1, wherein a horizontal cross section of the pillar has a narrow width side surface on the roadway side. . 13. The pillar is curved toward the road, and the horizontal end of the sound insulation plate is attached in a curved state along the surface of the curved pillar on the road side. The mounting structure of the sound insulating plate in the soundproof wall for a road as described in any one of to 12. 14. A column has a horizontal cross section of a square shape, and a nut mounting hole is provided adjacent to a bolt hole provided at each bolting position. The nut mounting hole can be inserted through the nut mounting hole to sandwich the pipe wall. A clip nut formed by fixing a nut to one side of a U-shaped clip that can be attached to the edge of the nut mounting hole is installed so that the center of the nut is aligned with the bolt hole at the bolting position on the inner surface of the pipe. The sound insulation in the soundproof wall for a road according to any one of claims 1 to 13, characterized in that the pressing member or the decorative member is attached by a bolt screwed into the nut from the surface of the pillar on the road side. Plate mounting structure.