JP2003328325A - Light transmitting type sound insulating wall for road with falling object protective function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light transmitting type sound insulating wall for a road provided with a falling object protective function of the same degree as a falling object protective fence. <P>SOLUTION: A light transmitting type sound insulating panel is composed of a light transmitting plate made of synthetic resin; vertical frame members arranged at right and left vertical sides; lateral fame members arranged at upper and lower lateral sides; and beads which fix the light transmitting plate to the vertical frame members and lateral frame members. Each peripheral part of the light transmitting plate is fixed and supported to the vertical frame member and lateral frame member with a holding margin of required sufficient depth. The vertical frame member comprises a base part put to the front face of a post, and a side edge part bent almost at a right angle in a back face direction from the inner edge part of the base part. A receiving groove part that can insert the vertical side of the light transmitting plate and fix a light transmitting plate pressing side end part of the bead, and a supporting groove part for fixing the other end of the bead, are formed on the front face side of the base part. The sound insulating panel is fixed to the front face part of the posts by bolts passing through the base part of the vertical frame members. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technical field of a sound insulation wall constructed mainly on a shoulder and a median along an expressway, and more specifically, a translucent sound insulation so as to open a view to the outside world. For example, the light-transmissive sound-insulating panel for a road uses a panel, and the light-transmissive sound-insulating wall for a road has a so-called drop-preventing function that meets a standard of a falling object prevention fence according to the design guidelines of the Japan Highway Public Corporation.

[0002]

2. Description of the Related Art As a recent road situation, a sound insulation wall with a so-called fall prevention function is strongly used to prevent the drop of the bottles, cans, and trash that have been dumped from the load of vehicles or vehicles from falling outside the road. Has been requested. Therefore, it is well known that fall prevention fences are used at important points along the road. However, the existing falling object prevention fence has a so-called wire mesh structure and has no sound insulation effect.

By the way, a translucent sound-insulating wall for a road using a translucent sound-insulating panel for widening the field of view seen from the side of a vehicle traveling on a road is disclosed in, for example, Japanese Patent Application Laid-Open Nos. 10-237829 and 2000-265421. , Which belong to the public and are already widely practiced.

However, in the existing sound insulation panel, there is a fear that the translucent plate may come off from the peripheral frame due to the impact force when the thrown object collides with the translucent plate, and therefore it is necessary to have a fall prevention function for receiving the thrown object. It is considered.

[0005]

As a fall prevention function required for a sound insulation wall for a road, for example, "3 m from the road surface" which is a standard for falling object prevention fence in the design guideline of the Japan Highway Public Corporation (April 1980) is used. At a height of 300 kg, a load of 6 per hour
It is assumed that the vehicle collides horizontally with the fence at an angle of π / 12 rad (15 °) at 0 km ”.

When a synthetic resin plate such as polycarbonate is used as the translucent plate, unlike a transparent glass plate, it does not crack because it is elastic even when an object of the above-mentioned extent collides, but it does not crack due to impact force. There is a great concern that the transparent plate will come off the peripheral frame and the object (load, etc.) will fall.

Therefore, an object of the present invention is to provide a light-transmissive sound-insulating wall for a road, which has the same level of fall-preventing function as a falling object prevention fence without impairing the performance of the light-transmissive sound-insulating wall.

A second object of the present invention is that the structure for attaching the sound insulation panel to the column is simple, the ease and certainty of the attachment work are realized, and the form is made compact and the functional perfection is enhanced. It is to provide a translucent sound insulation wall for roads.

[0009]

As a means for solving the above-mentioned problems of the prior art, a road-type translucent sound insulation wall with a fall prevention function according to the invention of claim 1 is arranged at regular intervals along the road. A translucent sound insulation wall comprising a plurality of built columns and a translucent sound insulation panel mounted between the columns, wherein the translucent sound insulation panel is a translucent plate made of synthetic resin and the translucent plate. The vertical frame members arranged on the left and right vertical sides, the horizontal frame members arranged on the upper and lower horizontal sides, and the vertical frame member of the translucent plate, and the ridge fixed to the horizontal frame member. The peripheral portion is fixed and supported by a vertical frame member and a horizontal frame member with a sufficient and sufficient sandwiching margin. The vertical frame member is a substrate portion that is applied to the front surface of the column, and an inner edge of the substrate portion. The side portion extending along the side surface portion of the strut, which is bent at a substantially right angle from the rear portion to the front portion. On the front surface side of the substrate portion, a vertical groove of the light transmitting plate can be inserted, and a receiving groove portion for stopping the light transmitting plate pressing side end portion of the pushing edge and a supporting groove portion for stopping the other end of the pushing edge are formed, The sound insulation panel is characterized in that the sound insulation panel is fixed to the front surface of the pillar by a bolt penetrating the substrate portion of the vertical frame member.

The invention described in claim 2 is the translucent sound insulation wall for a road with the fall prevention function according to claim 1,
The vertical frame member and the horizontal frame member are characterized in that the size of the light-transmissive plate is set to an appropriate size that secures at least 30 mm.

According to a third aspect of the present invention, there is provided a road-type translucent sound insulation wall with a fall prevention function according to the first aspect,
The pillar is characterized by being an H-shaped pillar or a hollow prismatic pillar.

According to a fourth aspect of the present invention, there is provided a road-type translucent sound insulation wall with a fall prevention function according to the first aspect,
The upper side of the translucent plate and the horizontal frame material supporting the translucent plate are screwed at a plurality of points, and the end of the translucent plate pressing side of the ledge that fixes the upper side is a U-shaped member that escapes the head of the screw. It is characterized in that a notch is formed.

According to a fifth aspect of the present invention, there is provided a road type sound-insulating wall for a road having a fall prevention function according to the first aspect,
A hollow box part is formed at a position near the outer edge of the front surface of the base plate portion of the vertical frame member to conceal the head of the bolt penetrating the base plate portion toward the strut to enhance rigidity. A vertical side of the transparent plate can be inserted between the side surface of the substrate and the substrate, and a receiving groove is formed to stop the edge of the ridge on the transparent plate pressing side. It is characterized in that a groove is formed.

According to a sixth aspect of the present invention, there is provided a road-type translucent sound insulation wall with a fall prevention function according to the first aspect,
The support groove portion that stops the other end of the ridge is formed in a curved shape in the depth direction so that the ridge with the other end inserted can be rotated to lock the end of the transparent plate holding side into the receiving groove and fix the transparent plate. It is characterized by

According to a seventh aspect of the present invention, in the translucent soundproof wall for a road having a fall prevention function according to the first or fifth aspect, the width of the base plate is about 1 of the width of the front face of the column.
It has a size of / 2, and is characterized in that a lip portion bent toward the side surface of the rectangular column is formed at the tip of the side portion extending from the inner end side of the substrate portion in the back direction.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a light-transmissive sound insulation wall for a road according to the present invention will be described below with reference to the drawings.

The translucent sound insulation panel 1 shown in FIG. 1 is a translucent plate 4 made of a synthetic resin plate such as transparent polycarbonate.
The vertical frame member 2 and the horizontal frame member 3 whose sectional structures are shown in FIGS. 2 to 4 are arranged on the left and right vertical sides and the upper and lower horizontal sides to assemble into a substantially square shape, and the four sides of the translucent plate 4 are rimmed. The configuration is fixed at 5. An example of the size is about 2m x 2m in length x width.
It's about. In the vertical direction of the vertical frame member 2, three bolt holes 6 are provided at equal intervals (however, the number is not limited to this) for attachment to the columns 7A or 7B.

As shown in FIG. 3, FIG. 4 and FIG. 5, the vertical frame member 2 has a horizontal cross-sectional shape and a front surface of an H-shaped column 7A or a hollow rectangular column 7B (invention described in claim 3). 7a and a thick-walled substrate portion 2a, which is bent at a substantially right angle from the inner edge portion of the substrate portion 2a to the back direction, and extends substantially parallel to the side surface of the rectangular column 7B of FIG. 4 as an example. The thin plate-shaped side portion 2b is formed as a main part (the invention according to claim 1).

In the case of the illustrated embodiment, the substrate portion 2a is further added.
At the position near the outer edge of the front face of the hollow hollow rectangular tube shape for concealing the head 8a of the bolt 8 that penetrates the bolt hole 6 of the base portion 2a toward the strut 7A or 7B and enhance the rigidity of the base portion 2a. It has a hollow box portion 2c having a thin structure as a whole. The vertical side of the transparent plate 4 can be inserted between the side surface of the hollow box portion 2c near the inner edge and the front surface of the substrate portion, and the one end portion 5a of the pushing edge 5 can be stopped. Possible U-shaped receiving groove 1
0 is formed. Furthermore, the support groove portion 11 at which the other end portion 5b of the push edge 5 stops is formed as a curved groove in the depth direction (the invention described in claim 5). The support groove portion 11 has a structure in which the ridge 5 into which the other end 5b is inserted is indicated by an arrow mn.
It is formed in a curved shape in the depth direction so as to fix the transparent plate 4 by fixing the transparent plate pressing side end 5a to the receiving groove 10 by rotating the transparent plate 4 as described above (claim 6). Invention).

At the tip of the side portion 2b of the vertical frame member 2, for example, a lip portion 2d bent toward the side surface of the square column 7B of FIG. 4 is formed (the invention according to claim 7). . The lip portion 2d is intended to obscure the gap formed between the side surface of the square column 7B and the side portion 2b.

The vertical frame member 2 having the above structure is manufactured as an extruded or drawn aluminum product. The ridge 5 is also manufactured as an extruded (or drawn) molded product of aluminum.

As shown in FIGS. 2 and 6, the horizontal frame member 3 for supporting the lateral sides of the translucent plate 4 has basically the same structure as that of the vertical frame member 2 to enhance the rigidity. The main parts are hollow box parts 3a and 3b having a substantially rectangular tube shape. Between these two hollow box portions 3a and 3b, a lateral side of the translucent plate 4 can be inserted, and furthermore, the translucent plate pressing side end portion 5a of the pushing edge 5 can be stopped so as to have a U-shape. The receiving groove portion 10 is formed. Further, a supporting groove portion 11 for stopping the other end portion 5b of the pushing edge 5 is formed (the invention according to claim 5). This supporting groove portion 11 is, of course, the depth direction so that the ridge 5 into which the other end portion 5b is inserted is rotated to stop the light transmitting plate pressing side end portion 5a in the receiving groove portion 10 so that the light transmitting plate 4 can be fixed. Is formed into a curved shape (the invention according to claim 6).

The upper and lower horizontal and vertical frame members 3 are also manufactured as aluminum extruded or drawn products.

In addition, only the upper lateral frame member 2 is screwed to the translucent plate 4 at a plurality of places indicated by reference numeral 12 in FIG. 1 in order to integrally connect with the translucent plate 4. There is. Translucent plate 4
This is to prevent accidental fall and drop.

The detailed structure of screwing is shown in FIG. The upper lateral side of the translucent plate 4 inserted into the receiving groove portion 10 is firmly fixed to the front surface of the groove wall of the hollow box portion 3b of the horizontal frame member 3 by directly screwing it with a fitting screw 12. On the other hand, ridge 5
The translucent plate pressing side end 5a has a U-shaped notch 13 having a width slightly larger than the diameter of the screw head so that a smooth fastening operation can be performed while avoiding the head of the screw 12. The same number is provided at the same position as the positions of the screws 12 (the invention according to claim 4).

As described above, the translucent plate 4 has the vertical frame member 2 and the horizontal frame member 3 arranged on the left and right vertical sides and the upper and lower horizontal sides, respectively.
After inserting into the respective receiving groove portions 10, the other end portion 5b of the ridge 5 is inserted into each supporting groove portion 11 and rotated, and the light-transmissive plate pressing side end portion 5a is stopped in the receiving groove portion 10, whereby each vertical frame is inserted. It is firmly fixed and supported to the member 2 and the lateral frame member 3, and thus the translucent sound insulation panel for road 1 with a fall prevention function is assembled.

That is, in the case of the present invention, the fixing / supporting of the peripheral portions of the translucent plate 4 by the receiving groove portions 10 of the vertical frame member 2 and the horizontal frame member 3 obtains the performance with the fall prevention function. As a means to do so, as an example, the standard of the above Japan Highway Public Corporation (April 1980) is the standard for falling object prevention fences. It is assumed that a horizontal collision is made at an angle of (15 °) "and the structure is fixed and supported by a sandwiching margin L deep enough to clear the standard.

As a result of repeating the impact test by the test load set so that the kinetic energy is the same as the above-mentioned reference, the present inventors found that the sandwiching margin L of the translucent plate 4 made of polycarbonate resin having a thickness of 8 mm was As long as it is designed to have a size of 30 mm or more and a size suitable for fixing and supporting the translucent plate 4 by the receiving groove portions 10 of the vertical frame member 2 and the horizontal frame member 3, specifically about 40 mm to 50 mm, The translucent plate 4 will never come off from the frame material due to the impact of the above test load,
It was confirmed that the member passed the falling object prevention fence standard without scattering of the members (the invention described in claim 2). As to the pinching margin L, as shown in detail in FIG. 5, it is substantially pressed by the light-transmissive plate pressing side end portion 5a, and hits the substrate portion 2a of the vertical frame member 2 for a high speed. It refers to the range.

A translucent sound insulation wall for a road using the translucent sound insulation panel for a road 1 having the above-described structure for preventing a fall is, as illustrated in FIG. 3 or 4, an H-shaped support 7A or a hollow prismatic support 7B. The base plate portion 2a of the vertical frame member 2 is applied to the front surface of the above, and the nut 9 is screwed and tightened from the back side to the bolt 8 that has passed through the bolt hole 6 which is provided in advance, and the nut 8 is firmly attached. Hollow box 2c for passing the bolt 8
The through hole 20 is previously provided at a position corresponding to the bolt hole 6. Reference numeral 14 in FIG. 5 indicates a friction material. Also,
In FIG. 2, reference numeral 15 is a ring bolt attached to the upper horizontal frame member 3, and reference numeral 16 is a shatterproof wire that is passed through the ring bolt 15 ring body.

The width of the base plate portion 2a of the vertical frame member 2 which is bolted to the front surface of the H-shaped column 7A or the hollow rectangular column 7B as described above is as shown in FIGS. It is formed to have a size that is about ½ of the width of the front part of the column (the invention according to claim 7). This is to allow an error in the space between the columns or an error in manufacturing the translucent sound insulation panel 1.

[0031]

EFFECTS OF THE INVENTION The translucent sound insulation wall for a road with a fall prevention function according to the invention described in claims 1 to 7 is a falling object without impairing the performance as the translucent sound insulation wall, that is, the function of expanding the field of view. Since it has the same level of fall prevention function as the prevention fence, it is not necessary to install a fall prevention fence, which is highly effective for road management.

Further, the light-transmitting sound-insulating wall for a road according to the present invention is a transparent member with a fall-preventing function, which is configured as a sandwiching margin L for fixing and supporting the light-transmitting plate by the receiving groove portions of the vertical frame member and the horizontal frame member. Since the vertical frame material of the optical sound insulation panel is simply bolted to the columns, the mounting structure can be simplified, easy and reliable.

Further, there is an effect that the form of the translucent sound insulation wall for roads is made compact and the functional perfection is enhanced.

In addition, the light-transmitting plate constituting the light-transmitting sound-insulating panel has a simple structure in which it is fixed to the vertical frame member and the horizontal frame member by the ridge, and the workability is good and the fixing effect is excellent. There is. Therefore, it is convenient for replacement work and other maintenance when the sound insulation panel is damaged.

[Brief description of drawings]

FIG. 1 is a front view showing a translucent sound insulation panel constituting a translucent sound insulation wall with a fall prevention function according to the present invention.

FIG. 2 is a sectional view taken along a line II-II in FIG.

FIG. 3 is a cross-sectional view of a translucent sound insulation wall for a road, which is cut along a line III-III in FIG. 1 and shows a structure for attaching to a pillar.

FIG. 4 is a cross-sectional view of a translucent sound insulation wall for a road, showing an embodiment in which it is cut along a line III-III in FIG.

FIG. 5 is an enlarged cross-sectional view of the vertical frame member of FIG.

FIG. 6 is a perspective view showing a structure for fixing and supporting the upper lateral side of the translucent plate to a lateral frame member.

[Explanation of symbols] 7A H type support 7B square column 1 Translucent sound insulation panel 2 Vertical frame material 3 horizontal frame materials 5 rim L pinching allowance 2a Substrate part 2b side part 5a End of transparent plate holding side 10 Receiving groove 5b other end 11 Support groove 2c Hollow box part 8 volt 12 screws 13 notches 2c Box section

Claims (7)

[Claims] 1. A translucent sound-insulating wall comprising a plurality of pillars built along a road at regular intervals, and a translucent sound-insulating panel mounted between the pillars, wherein the translucent sound-insulating panel comprises: Synthetic resin transparent plate, vertical frame members arranged on the left and right vertical sides of the transparent plate, horizontal frame members arranged on the upper and lower horizontal sides, and the transparent plate to the vertical frame members and horizontal frame members. It is composed of a fixed ledge, and each peripheral part of the translucent plate is fixed and supported by a vertical frame member and a horizontal frame member with a sufficiently deep sandwiching margin. A transparent plate on the front side of the base plate part, and a side part that is bent from the inner edge part of the base plate part at a substantially right angle to the back side and extends along the side surface part of the support column. You can insert the vertical side of
Also, a receiving groove portion for stopping the end portion of the ridge on the light-transmissive plate holding side
And a support groove portion that stops the other end of the ridge is formed, the sound insulation panel is fixed to the front surface portion of the pillar by a bolt that penetrates the substrate portion of the vertical frame member, A translucent sound insulation wall for roads with a fall prevention function. 2. The road with fall prevention function according to claim 1, wherein the margin of the translucent plate between the vertical frame member and the horizontal frame member has an appropriate size that secures at least 40 mm or more. Translucent sound insulation wall. 3. The translucent soundproof wall for a road with a fall prevention function according to claim 1, wherein the pillar is an H-shaped pillar or a hollow prismatic pillar. 4. An upper side of a transparent plate and a horizontal frame member supporting the transparent plate are screwed together at a plurality of points, and a head of the screw is attached to an end portion of the ridge for fixing the upper side of the transparent plate which is on the side of the transparent plate pressing. The translucent sound insulation wall for a road with a fall prevention function according to claim 1, characterized in that a U-shaped notch that escapes is formed. 5. A hollow box portion is formed at a position near the outer edge of the front surface of the base plate portion of the vertical frame member so as to conceal the head of a bolt penetrating the base plate portion toward the support to enhance rigidity. The vertical side of the light-transmitting plate can be inserted between the side surface portion near the inner edge of the portion and the substrate portion, and a receiving groove portion for stopping the light-transmitting plate pressing side end portion of the pushing edge is formed. A support groove portion for stopping the other end is formed,
A translucent sound insulation wall for a road with a fall prevention function according to claim 1. 6. A support groove portion for stopping the other end of the ridge is formed in a depth direction so that the ridge having the other end inserted therein can be rotated to stop the end portion on the side of the translucent plate holding side in the groove to fix the translucent plate. The translucent sound insulation wall for a road with a fall prevention function according to claim 1, which is formed in a curved shape. 7. The lateral width dimension of the base plate portion is about ½ of the width dimension of the front face portion of the support column, and a rectangular shape is formed at the tip of the side portion extending from the inner end side of the base plate portion in the rear direction. The translucent sound insulation wall for a road with a fall prevention function according to claim 1 or 5, wherein a lip portion bent toward a side surface of the support column is formed.