JP2840173B2 - Sound insulation board - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-transmitting sound insulating plate which is installed, for example, on the side of a highway to cut off vehicle noise while securing the driver's view. For providing a frame-shaped frame, providing a sound-insulating thin plate that can be fitted to the frame, and holding and fixing the sound-insulating thin plate fitted to the frame between the frame and the frame. The present invention relates to a sound insulating plate provided with a pressing edge so as to be freely attached to the frame.

[0002]

2. Description of the Related Art Conventionally, as a sound insulating plate of this type, as shown in a side sectional view of FIG. 6, a frame-shaped frame 3 is provided, and a sound insulating thin plate 2 which can be fitted to the frame 3 is used. Provided, the frame 3
A pressing edge 4 for sandwiching and fixing the sound insulating thin plate 2 in a state of being fitted to the frame 3 is pressed against the frame 3 along the surface direction of the sound insulating thin plate 2. For example, the frame 3
And a contact portion S that comes into contact with each other at a mounting portion with the pressing edge 4.
Were formed on the respective planes.

[0003]

According to the above-described conventional sound insulating plate, the pressing edge is attached to the frame so that the external force on the frame is simultaneously reduced while simultaneously holding the sound insulating thin plate. It is also possible to share the stress together with the frame. For example, as shown in FIG. 5, when an external force acts on the frame 3 to which the ridge 4 is attached, the frame 3 and the ridge 4 are each deformed into a convex bow in the direction of the external force, and Oppose. At that time, in each contact portion S (formed on a plane) between the frame 3 and the pressing edge 4, the contacting portion of the frame 3 is deformed in the extending direction, and the contacting portion of the pressing edge 4 is contracted. However, by suppressing the opposing deformations of the two members 3 and 4, the bending of the two members 3 and 4 can be reduced, and the thin plate can be prevented from being damaged by the bending. .

According to the conventional sound insulating plate, it is possible to suppress the opposite deformation of the two members on the contact surface formed in a plane,
Mainly, the bolts are used to join the two members, so that the frame and the ridge are integrally connected to reduce bending when an external force is applied. It is necessary to use or to reduce the bolt installation pitch to provide a large number of bolts.
The area and the number of bolt through holes provided in the pressing edge increase. When the area and the number of bolt through holes in the frame and the ridge are increased, the rigidity of the frame and the ridge as a member is reduced, so that the member cross-sectional area itself must be increased, and the weight of the sound insulating plate increases. Or the frame and the ridge become large and difficult to handle. In addition, if the number of the bolts increases, the number of mounting points of the bolts increases accordingly, and it takes time and effort to mount the pressing edge to the frame. Furthermore, in order to add transparency to the sound insulating plate, for example, when a transparent plate is used as the sound insulating thin plate, the larger the frame body / pressing edge, the lower the ratio of transparent parts and the frame body・
The problem is that the ridge becomes obtrusive and difficult to see.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned problems, and it is difficult to bend even if the cross-sectional area of the frame and the ridge is small.
Another object of the present invention is to provide a sound insulating plate capable of increasing an opening ratio between a frame and a pressing edge.

[0006]

In order to achieve this object, a sound insulating plate according to the present invention is characterized by a pressing edge for sandwiching and fixing a sound insulating thin plate between the frame and a frame. One of the abutting portions abutting each other at the attaching portion, a plurality of protrusions are provided at intervals along the longitudinal direction of the abutting portion, and the frame and the pressing edge are attached in the state where the A plurality of recesses into which a plurality of protrusions are separately fitted are provided on the other of the contact portions.

[0007] The sound insulating thin plate has a light transmitting property,
The pressing edge may be attached by pressing against the inner peripheral surface of the frame.

[0008]

According to the characteristic structure of the sound insulating plate of the present invention, the contact portions which come into contact with each other at the mounting portion between the pressing edge for holding and fixing the sound insulating thin plate between the frame-shaped frame and the frame. One of the plurality of protrusions is provided at intervals along the longitudinal direction of the contact portion, and the other of the contact portions has the plurality of protrusions in a state where the frame and the pressing edge are attached. Are provided with a plurality of recesses, each of which is fitted separately, so that the frame body and the ridge (hereinafter, referred to as both members) are attached in a state where the projections and the recesses are fitted by the contact portions. It is possible that the protrusion and the recess are fitted to each other, so that the two members on the contact surface are less likely to move in different directions along the contact surface, and as a result,
When an external force acts on the two members, it is possible to suppress conflicting deformations of the two members on the contact surface, and it is possible to reduce the amount of bending of the two members. That is, it is possible to suppress the conflicting deformation of the two members at the contact portion by, for example, fitting the projections and the recesses together with the attachment such as a bolt for attaching the two members. The bending of the two members can be reduced without increasing the cross section of the tool or increasing the number of installation locations. As a result, there is no need to increase the number of through holes of the mounting tool with respect to both members, and it is not necessary to increase the cross section or size of both members. Therefore, for example, even when a transparent plate is used as the thin plate, a wide transparent surface can be secured. Further, by fitting the protrusions and the recesses, the position of the pressing edge with respect to the frame body is automatically determined, so that when mounting the pressing edge to the frame body, it is possible to easily position and reduce the mounting time. Becomes

[0009]

Therefore, according to the sound insulating plate of the present invention, it is possible to make it difficult to bend even if the cross-sectional area of the member of the frame body and the ridge is small, so that the sound insulating plate can be reduced in weight, and
Since the opening ratio of the frame and the ridge can be increased, it is easy to see when using a transparent sound insulation plate, and the positioning of the ridge with respect to the frame can be easily performed. Work efficiency can be improved together.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 3 shows a wall W standing upright on the side of the highway. The wall W is provided between a plurality of sound insulation plate mounting posts 1 made of an H-shaped steel bent at an equal pitch and having adjacent groove portions M standing upright in an arcuate shape. The edge portions are individually fitted into the groove portions M of the sound insulating plate mounting support column 1, and are mounted in a vertically stacked state.

The sound insulating plate P is provided with a sound insulating thin plate 2, a frame-shaped frame 3 for supporting the thin plate 2 in a fitted state, and holding the thin plate 2 between the frame 3 and the frame 3. The edge 4 is provided.

The sound insulating thin plate 2 is an elastic translucent plate made of polycarbonate. The sound insulating thin plate 2 is held in a frame formed on the frame 3.

The frame 3 is made of aluminum, and as shown in FIGS. 1 and 2, an upper frame 3A, a lower frame 3B and a pair of hollow prisms each having a hollow prism provided with a step on the inner side of the frame. Of the horizontal frame 3C. The upper and lower frames 3A, 3B are located between the horizontal frames 3C in addition to the frames 3A, 3B, 3C depending on the size of the sound insulating plate and the design stress on the sound insulating plate.
Sometimes a middle frame is provided. Each of the frames 3A, 3B, and 3C is separately provided with a pressing fixing portion 5 for mounting the pressing edge 4 that presses and fixes the sound insulating thin plate 2 disposed in the frame along the surface direction. A support portion 6 is provided between the pressing edge 4 and the sound insulating thin plate 2 so as to be able to be sandwiched therebetween. The pressing and fixing portion 5 is provided with a plurality of recesses 5a into which a plurality of projections 4a provided on a mounting surface 4b of the pressing edge 4 described later can be individually fitted. The recesses 5 a are spaced at intervals along the longitudinal direction of the pressing and fixing portion 5, and are arranged in a plurality of rows along the thickness direction of the sound insulating thin plate 2. At the upper end of the upper frame 3A and at the lower end of the lower frame 3B, there is provided a fitting portion 7 with another vertically adjacent sound insulating plate. Is provided with a plurality of screw members 6a which can be attached and fixed freely through the sound insulating thin plate 2 in the thickness direction. Therefore, the sound insulating thin plate 2 has its upper edge fixed to the upper frame 3A by the screw member 6a, and the other edges are pressed against the lower frame 3B and the horizontal frame 3C by pressing the pressing edge 4 therebetween. I support it. Therefore, when an impact force due to, for example, a wind or a collision of a car or the like acts on the wall W, the sound insulating thin plate 2 is deformed by its elasticity. And, on the side supported by the lower frame 3B, the restraint is only to sandwich the sound-insulating thin plate 2 from both sides and does not penetrate the sound-insulating thin plate 2; To prevent the impact force from acting intensively on the sound insulating thin plate 2. In addition, since the upper edge of the sound insulating thin plate 2 is fixed to the frame 3 (specifically, the upper frame 3A) via the screw member 6a penetrating through the sound insulating thin plate 2, a part of the sound insulating thin plate 2 is formed. Even if the sound insulating thin plate 2 comes off the frame 3, it can be strongly supported and maintained in a fixed state, and the sound insulating thin plate 2 can be prevented from coming off the frame 3.

The pressing edge 4 is formed in a hollow prismatic shape by aluminum, and as described above, the mounting surface 4b for the pressing fixing portion 5 is provided.
The recess 5a is provided with a plurality of protrusions 4a which can be individually fitted. The pressing and fixing portion 5 and the mounting surface 4b are configured as contact portions S that can be opposed to each other and contact with each other at a mounting portion between the frame 3 and the pressing edge 4. The recess 5a and the projection 4a are formed so as to prevent the relative movement of the frame 3 and the pressing edge 4 along the longitudinal direction by fitting each other. It is possible to improve the integrity of the frame body 3 and the pressing edge 4 with respect to an external force along the contacting direction with the pressing edge 4 and reduce the bending of both members. In addition, the sound insulating thin plate 2 is pressed against the support portion 6 on a surface of the pressing edge 4 on the side of the sound insulating thin plate 2 in a state where the pressing edge 4 is attached to the pressing fixing portion 5, and the sound insulating thin plate is pressed. An elastic pressing member 8 is provided to fill the gap between them and enhance the sound insulation effect. The attachment of the ridge 4 to the frame 3 is carried out by mounting bolts 9 as shown in the drawing.

[Another Embodiment] <1> As described in the previous embodiment, the structure of the attachment portion between the frame 3 and the pressing edge 4 is the same as that of the previous embodiment.
a is provided, and the protrusion 4a is not limited to the protrusion 4a provided on the pressing edge 4. For example, as shown in FIG.
The protrusion 3 a is provided on the frame 3, and the recess 5 a
May be provided. In short, the frame 3
And a plurality of protrusions 4a are provided at one of the contact portions S in contact with each other at an attachment portion with the pressing edge 4 at intervals along the longitudinal direction of the contact portion S. It is only necessary that a plurality of recesses 5a into which the plurality of protrusions 4a separately fit are provided on the other of the contact portions S in a state where the pressing edge 4 is attached.

<2> The sound insulating thin plate 2 is not limited to the polycarbonate thin plate described in the above embodiment, but may be another resin, metal, fiber reinforced plate, or the like. It may not have light properties.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a sound insulating plate of an embodiment.

FIG. 2 is a front view of the sound insulating plate of the embodiment.

FIG. 3 is a perspective view of a fence constituted by the sound insulating plate of the embodiment.

FIG. 4 is a side sectional view of a sound insulating plate according to another embodiment.

FIG. 5 is an explanatory view showing deformation of a frame and a pressing edge.

FIG. 6 is a side sectional view showing a conventional sound insulating plate.

[Explanation of Signs] 2 Sound insulation thin plate 3 Frame 4 Pressing edge 4a Projection 5a Recess S Contact portion

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E01F 8/00 E01F 8/02

Claims (2)

(57) [Claims] 1. A frame-shaped frame (3) is provided, a sound-insulating thin plate (2) that is fittable to the frame (3) is provided, and the sound-insulating thin plate (2) is fitted to the frame (3). A ridge (4) for sandwiching and fixing the sound insulating thin plate (2) between the thin plate (2) and the frame (3),
A sound insulation plate provided so as to be freely attachable to the frame (3), wherein a contact portion (S) which is in contact with an attachment portion between the frame (3) and the pressing edge (4). On the other hand, a plurality of protrusions (4a) are provided at intervals along the longitudinal direction of the contact portion (S), and the plurality of protrusions (4a) are attached to the frame (3) and the pressing edge (4). A sound insulation plate provided with a plurality of recesses (5a) into which the projections (4a) are separately fitted, respectively, on the other of the contact portions (S). 2. The sound insulation according to claim 1, wherein the sound insulation thin plate (2) is light-transmissive, and the pressing edge (4) is attached by pressing against the inner peripheral surface of the frame (3). Board.