JP2003336223A - Light-transmissive sound insulating board - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light-transmissive sound insulating board of which the plate-like portion is hard to get out of place and fall off, or hard to scatter if broken, by the strong impacts given to the light-transmissive sound insulating board when an automobile collides. <P>SOLUTION: The light-transmissive sound insulating board is provided with a nearly transparent plate-like member and a frame-shaped member holding the circumference of the plate-like member. The frame-shaped member is provided with a frame-shaped member body and a frame-shaped fixing member attached to the frame-shaped member body in a state holding the circumference of the plate-like member. An engagement part is continuously provided on all or a part of the circumference of the plate-like member and an engagement recess in which the engagement part fits is continuously provided on all or a part of the inside of the frame-shaped member, so that the engagement part can engage with the engagement recess. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is installed on a roadside or a median strip of an urban road, a roadside or a median strip of an expressway, etc. in order to shield noise generated by a traveling automobile. The present invention relates to a translucent sound insulation plate that prevents parts and fragments from scattering or falling off even when damaged by the collision of an automobile or the like.

[0002]

2. Description of the Related Art As a translucent sound insulating plate of this type, one disclosed in Japanese Patent No. 2840174 is known. As shown in FIG. 7, the translucent sound-insulating plate 10 includes a substantially transparent plate-shaped member 12 and a frame-shaped member 14 that holds the peripheral edge of the plate-shaped member 12, and the frame-shaped member 14 is a frame. The plate-shaped member main body 18 and the frame-shaped fixing member 20 attached to the frame-shaped member main body 18 with the peripheral edge of the plate-shaped member 12 sandwiched therebetween. Is fixed to the fixing member 20 with bolts and nuts 26,
Both sides and the lower three sides are supported only in a state of being sandwiched between the frame-shaped member main body 18 and the fixing member 20.

The translucent sound insulation plate 10 is installed, for example, as shown in FIG. 8 while being supported by a column 30 on the side of a highway, and a strong impact force acts on the plate member 12 due to a collision of an automobile or the like. In this case, both sides and the lower three sides of the plate-shaped member 12 are slid out from between the frame-shaped member main body 18 and the fixing member 20 to reduce the impact force acting on the plate-shaped member 12, and The frame member main body 18 and the fixing member 2 are provided on the upper side.
The plate-shaped member 12 is prevented from falling off by being fixed to 0 by the bolt / nut 26.

[0004]

By the way, the plate-shaped member 1
When fixing one side of 2 to the frame-shaped member 14, the plate-shaped member 12
Since holes are opened at one side and bolts are passed through the holes and fixed to the frame-shaped member 14 with nuts, it takes time to attach the plate-shaped member 12 to the frame-shaped member 14, and the plate-shaped member 12 is strong. Bolts and nuts 2 when impact force is applied
There is a risk that the stress is partially concentrated on the portion fixed by 8, the plate member 12 is damaged near the hole, and the plate member 12 and the bolts / nuts 28 are scattered or dropped.

Particularly, on an elevated highway, the speed of an automobile is also high, and when the fragments of the plate member 12 or the bolts / nuts 26 drop due to a collision, the fragments of the plate member 12 or the bolts / nuts 26 run on the road below. It is highly possible that a secondary accident will occur due to a collision with a running car or the like.

According to the present invention, even if a strong impact force is applied to the translucent sound insulating plate due to a collision of an automobile or the like, the plate member is unlikely to come off and fall off, and the plate member is not easily broken and scattered. The purpose is to provide a sound insulation plate.

[0007]

According to the present invention, there is provided a substantially transparent plate-shaped member and a frame-shaped member sandwiching a peripheral edge of the plate-shaped member, the frame-shaped member being a frame-shaped member main body. A frame-shaped fixing member that is attached to the frame-shaped member main body with the peripheral edge of the plate-shaped member sandwiched between the plate-shaped member and an engaging portion that is continuous in all or part of the periphery of the plate-shaped member. And an engaging recess for engaging the engaging portion is continuously provided on all or part of the inside of the frame member main body, and the engaging portion engages with the engaging recess. It is characterized by that.

Here, the engaging portion may be a bent portion formed by bending an edge portion of the plate member at a substantially right angle. Further, the engaging portion may be attached to the frame-shaped member with its tip facing the outside of the road.

[0009]

1 is a front view of a light-transmitting sound-insulating plate showing an embodiment of the present invention, FIG. 2 is a sectional view taken along line AA of FIG.
FIG. 3 is a sectional view taken along line BB of FIG. As shown in these drawings, the translucent sound insulation plate 10 is composed of a rectangular plate-shaped member 12 and a frame-shaped member 14 attached around the plate-shaped member 12.

The plate member 12 is made of a synthetic resin plate such as a polycarbonate resin or an acrylic resin, for example, a substantially transparent synthetic resin plate having a width of 2 m to 4 m, a height of 1 m to 2 m and a thickness of about 5 mm. 2, the plate-shaped member 1
The upper side of 2 has a width of, for example, about 25 mm and is bent at a substantially right angle to form an engaging portion 16, and the lower side of the plate member 12 remains flat. Further, the left and right vertical sides of the plate member 12 also remain flat as shown in FIG.

However, the shape of the plate member 12 is an example, and the engaging portion 16 may be provided not only on the upper side but also on the lower side as shown in FIG. Further, the left and right vertical sides of the plate-shaped member 12 are either the left or right vertical side as shown in FIG. 5, or both the left and right vertical sides as shown in FIG.
May be provided.

The frame-shaped member 14 is composed of a rectangular frame-shaped member main body 18 and a rectangular fixed member 20 mounted inside the frame-shaped member main body 18. A support portion 22 is formed along the inner edge of the frame-shaped member body 18. Frame member main body 18
An engaging recess 24 having a gap of 3 mm and a depth of about 25 mm is formed in the thickness direction at the base of the support portion 22 on the upper side.

However, the location where the engaging recess 24 is provided is not limited to the base of the supporting portion 22 on the upper side of the frame-shaped member body 18, and the engaging portion 16 may be provided on other than the upper side of the plate-shaped member 12. When it is provided, as shown in FIGS. 4 to 6, it is necessary to provide it corresponding to the place where the engaging portion 16 is provided.

Both the frame-shaped member main body 18 and the fixing member 20 are made of an aluminum plate, an aluminum profile, or a zinc-iron plate, which is a hollow structure. Fixed member 20 and support 22
Are slightly larger than the periphery of the plate member 12 and are formed in substantially the same shape.

The engaging portion 16 of the plate member 12 is fitted into the engaging groove 24, the peripheral edge of the plate member 12 is superposed on the supporting portion 18, and the fixing member is fixed on the peripheral edge of the plate member 12. 20 are stacked, and the peripheral edge of the plate-shaped member 12 is fixed member 20 and support portion 22.
It is fixed by being sandwiched between. The fixing member 20 is connected and fixed to the inside of the frame member main body 18 with bolts and nuts 26.

As described in the description of the prior art, the light-transmitting sound-insulating plate 10 is installed beside a highway or the like using columns in a plurality of stages in the height direction and continuously in the traveling direction. .

The noise of the automobile on the highway is blocked by the translucent sound insulation plate 10 and is prevented from leaking to the outside of the road. Further, since the translucent sound insulation plate 10 is formed of a transparent synthetic resin plate, the driver can see the outside scenery and can drive naturally without pressure.

When an automobile or the like collides with the translucent sound-insulating plate 10, the plate-shaped member 12 is largely distorted and the non-engaged side of the plate-shaped member 12 is disengaged from the frame-shaped member 14, or the plate-shaped member is disengaged. The energy of the collision of the automobile or the like is absorbed by the damage of 12 and the absorption of the energy of the collision of the automobile or the like.

Further, since the broken plate-shaped member 12 is continuously engaged with the frame-shaped member 14 at the other end, it is difficult for the plate-shaped member 12 to be locally broken at the mounting portion with the frame-shaped member 14. ,
Even if a part of the plate-shaped member 12 is disengaged from the frame-shaped member 14 or broken, the plate-shaped member 12 is engaged with the frame-shaped member 14 somewhere.

[0020]

According to the present invention, when a strong impact force acts on a plate member due to a collision of an automobile or the like, the plate member is largely distorted,
The part that does not have the engaging part slides out from the gap between the frame-shaped member main body and the fixed member, so that the impact force on the plate-shaped member is mitigated, so that the plate-shaped member is prevented from being broken or scattered and is destroyed. It is possible to prevent a situation in which the fragments of the plate-like member are scattered and fall on the road or the like below and collide with an automobile or the like running on the road below to cause a secondary disaster.

Further, according to the present invention, when an automobile or the like collides with the translucent sound insulation plate, at least one side of the plate member is attached to the frame member, and the impact force of the collision is the frame member of the plate member. Since it acts on the entire side attached to the plate-shaped member, the part of the plate-shaped member that is attached to the frame-shaped member is not easily locally destroyed, and therefore the plate-shaped member falls off the frame-shaped member and falls off or breaks. It is possible to prevent a situation in which the broken pieces of the plate-shaped member are scattered and fall on the road or the like below and collide with an automobile or the like running on the road below to cause a secondary disaster.

Further, according to the present invention, when the engaging portion is formed by bending the edge portion of the plate member at a substantially right angle, the engaging portion can be easily formed on the plate member. There is.

Further, according to the present invention, when the engaging portion is attached to the frame-shaped member with its tip facing the outside of the road, the plate-shaped member is frame-shaped even if an automobile collides with the plate-shaped member. Since the plate-shaped member acts in the direction of further engaging with the member, there is an effect that it is difficult for the plate-shaped member to separate from the frame-shaped member.

[Brief description of drawings]

FIG. 1 is a front view of a translucent sound insulation board showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

3 is a sectional view taken along line BB of FIG.

FIG. 4 is a cross-sectional view showing a modified example of FIG.

5 is a cross-sectional view showing a modified example of FIG.

6 is a cross-sectional view showing another modified example of FIG.

FIG. 7 is a sectional view of a conventional translucent sound insulation plate.

FIG. 8 is an explanatory diagram showing an installed state of a translucent sound insulation plate.

[Explanation of symbols]

10 translucent sound insulation board 12 Plate-shaped members 14 Frame-shaped member 16 Engagement part 18 Frame member body 20 fixing member 22 Support 24 Engagement recess 26,28 bolts and nuts

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hideki Tajiri             3641-27 Touhou, Fukaya City, Saitama Prefecture (72) Inventor Shuji Tsurishima             4-23-2 Isobe, Mihama-ku, Chiba City, Chiba Prefecture (72) Inventor Masahiro Iga             8-9-101 Higashimanabe Town, Tsuchiura City, Ibaraki Prefecture F-term (reference) 2D001 AA01 BA02 BB01 CA01 CB01                       DA02 DA04

Claims (3)

[Claims] 1. A substantially transparent plate-shaped member and a frame-shaped member sandwiching a peripheral edge of the plate-shaped member, wherein the frame-shaped member includes a frame-shaped member main body and a peripheral edge of the plate-shaped member. A frame-shaped fixing member attached to the frame-shaped member main body in a sandwiched state,
Engagement portions are continuously provided on all or part of the periphery of the plate-shaped member, and engagement recesses for engaging with the engagement portions are continuous on all or part of the inside of the frame-shaped member main body. The sound-transmitting sound-insulating plate, wherein the engaging portion is engaged with the engaging recess. 2. The translucent sound-insulating plate according to claim 1, wherein the engagement portion is a bent portion formed by bending an edge portion of the plate-shaped member at a substantially right angle. 3. The translucent sound-insulating plate according to claim 2, wherein the engaging portion is attached to the frame-shaped member in a state in which a front end of the engaging portion faces the outside of the road.