JP3615851B2 - Sound insulation board - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention provides a frame-like frame body, a sound insulation thin plate that can be fitted into the frame body, a pressing member that clamps and fixes the thin plate along the thickness direction between the frame body and the pressing member. A fixing portion that can be fixed by contacting a member along the surface direction of the thin plate in a state of being fitted into the frame body is provided in the frame body, and the pressing member is brought close to the fixing portion. A guide slope that allows the pressing member to be guided to the thin plate in a state of being inserted into the frame body is provided on a contact surface between the frame body and the pressing member, and the pressing member is brought close to the fixing portion. The present invention relates to a sound insulating plate provided with a screw member to be attached.
[0002]
[Prior art]
Conventionally, as this type of sound insulating plate, there is one in which the screw member 20 is arranged along the surface direction of the thin plate 2 as shown in a side sectional view of FIG. That is, the screw member 20 is arranged in a state where the inclination direction of the guide slope 21 and the axial center direction of the screw member 20 intersect, and the pressing member 22 is fixed by tightening the screw member 20. The pressing member 22 is guided to the thin plate 2 side by the guide slope 21 as being close to the portion 23 so as to be clamped and fixed (see Japanese Patent Laid-Open No. 7-18632).
[0003]
[Problems to be solved by the invention]
According to the above-described conventional sound insulating plate, the screw member 20 is formed so that the screwing direction of the screw member 20 and the inclined direction of the guide slope 21 intersect with each other, as shown in FIG. The moving direction of the pressing member 22 accompanying the screwing intersects the axial direction of the screw member 20. Then, by pressing the screw member 20, the pressing member 22 is guided in the inclined direction while being pressed against the guide inclined surface 21, and the thin plate 2 is sandwiched between the frame body 24. A strong frictional force acts on the contact portion between the member 22 and the guide slope 21 and the contact portion between the pressing member 22 and the screw member 20 on the enlarged diameter head, and accordingly, the screw member. An extra force is required for the 20 screwing operation, and there is a problem that it is difficult to operate smoothly.
Further, in order to prevent the screw member 20 from interfering with the movement of the pressing member 22 to the thin plate 2 side, a through hole for penetrating the screw member of the pressing member 22 is provided in the clamping direction of the thin plate ( It is necessary to form a long hole shape along the (thickness direction), which takes time and effort and may cause a reduction in member strength.
[0004]
Accordingly, an object of the present invention is to provide a sound insulating plate that solves the above-mentioned problems, does not require extra labor for processing the member, and can smoothly tighten the screw member.
[0005]
[Means for Solving the Problems]
〔Constitution〕
According to the characteristic configuration of the present invention, a screw member for attaching a pressing member that clamps and fixes the sound insulating thin plate along the thickness direction to the fixing portion of the frame body is brought closer to the fixing portion. The pressing member is disposed along the inclination direction of the guiding slope provided on the contact surface between the frame and the pressing member so that the pressing member can be guided in proximity to the thin plate.
[0006]
[Action and effect]
According to the characteristic configuration of the present invention, since the screw member is arranged along the inclination direction of the guide slope provided on the contact surface between the frame body and the pressing member, the screw member can be screwed. Accordingly, the pressing member moves along the inclination direction of the guiding inclined surface that is the same as the axial direction of the screw member, and at this time, excessive frictional force is applied to the contact surface between the frame body and the pressing member. Can be prevented from acting. Accordingly, the screwing operation of the screw member accompanying the sandwiching operation of the thin plate can be performed with the minimum necessary operation force, and the screwing operation can be performed smoothly, so that the sound insulation plate assembly work efficiency can be improved. Can be improved.
Further, the screw member is arranged in a direction away from the thin plate toward the head side compared to the tip portion. For example, a tightening operation tool such as a screwdriver or a wrench is fitted to the screw member or tightening operation is performed. However, it is difficult for the thin plate to interfere, and it is possible to improve the mounting workability of the pressing member.
Furthermore, since the screwing operation of the screw member can be smoothly performed, the clamping force of the thin plate can be easily adjusted, for example, the damage of the thin plate due to over-tightening, It becomes easy to prevent the thin plate from falling off due to insufficient tightening.
[0007]
Further, it is not necessary to make the through hole for penetrating the screw member of the pressing member into a long hole shape as in the prior art, and it is possible to reduce the manufacturing labor.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the parts indicated by the same reference numerals as those in the conventional example indicate the same or corresponding parts.
[0009]
FIG. 1 shows a sound insulation wall W standing on the side of the highway.
The sound insulation wall W is provided with a plurality of H-shaped steel sound insulation plate mounting columns (hereinafter simply referred to as columns) that are spaced along the longitudinal direction of the road and that have adjacent grooves M facing each other. ) A plurality of sound insulation plates P are fitted in a state where they are stacked one above the other.
[0010]
The sound insulating plate P is provided with a sound insulating thin plate (hereinafter simply referred to as a thin plate) 2, a frame-like frame body 3 that supports the thin plate 2 is provided, and the thin plate 2 is sandwiched and fixed between the frame body 3. For this purpose, a pressing edge (an example of a pressing member) 4 is provided.
[0011]
The thin plate 2 is formed of a flexible translucent plate made of polycarbonate, and is held in the frame of the frame 3. Therefore, sound insulation can be achieved while securing a view from the passing vehicle.
[0012]
The frame 3 is made of aluminum, and as shown in FIGS. 2 and 3, an upper frame 3A, a lower frame 3B, and a pair of side frames made of hollow prisms provided with step portions on the inner side of the frame. It is composed of 3C. Depending on the size of the sound insulating plate P and the design stress on the sound insulating plate, in addition to the frames 3A, 3B, 3C, an intermediate frame extending between the upper and lower frames 3A, 3B may be provided between the pair of side frames 3C. is there.
Each of the frames 3A, 3B, 3C is provided with a fixing portion 5 for attaching the pressing edge 4 for pressing and fixing the thin plate 2 arranged in the frame along the thickness direction, and the pressing edge 4 A support portion 6 is provided between which the thin plate 2 can be sandwiched. The fixing portion 5 is provided with a convex portion 5a that can be fitted into the concave portion 4a provided on the mounting surface of the pressing edge 4 in the longitudinal direction, and a female screw portion that can be screwed with the screw member 7 for mounting the pressing edge. 5b is provided.
In addition, the upper end portion of the upper frame 3A and the lower end portion of the lower frame 3B are provided with fitting portions 8 with other sound insulation plates adjacent in the vertical direction. The sound insulation plates P that are inserted into each other are formed so as to have a stronger connection.
[0013]
The pressing edge 4 includes an upper pressing edge 4A, a lower pressing edge 4B, and a pair of side pressing edges 4C respectively corresponding to the frames 3A, 3B, and 3C, and is screwed to the female screw portion 5b of the frame 3 respectively. It is configured so that it can be performed (see FIG. 2).
Further, the upper edge 4A is integrated with the upper edge of the thin plate 2 by bolting in advance, so that the thin plate 2 can be prevented from being bent inadvertently when the thin plate 2 is attached to or detached from the frame 3. Thus, the handling is improved. On the other hand, the lower pressing edge 4 </ b> B and the pair of side pressing edges 4 </ b> C can clamp the edge portion of the thin plate 2 between the supporting portion 6 by screwing the fixing member 5 with the screw member 7. .
In addition, a concave portion 4a that can be fitted to the convex portion 5a of the upper and lower frames 3A and 3B is formed in a portion of the upper and lower pressing edges 4A and 4B facing the fixed portion 5. Then, the screw 4 is screwed on the contact surface between the concave portion 4a and the convex portion 5a to bring the pressing edge 4 close to the fixing portion 5, and the pressing edge 4 is moved to the thin plate 2. Guide slopes Y to be guided in proximity are formed.
Further, the screw member 7 is provided so that the axial direction of the screw member 7 is along the inclination direction of the guide slope Y. By tightening the screw member 7 as shown in FIG. The pressing edge 4 can be brought close to the frame body 3 in the inclination direction of the guiding slope while being in contact with each other, and the thin plate 2 can be supported between the support section 6 of the frame body 3 (see FIG. 4). .
However, in this clamping mechanism, when a large external force is applied to the thin plate 2, the thin plate 2 can be allowed to come out of the clamping portion. Therefore, the impact due to the external force is avoided to minimize damage to the thin plate 2. I can stop.
[0014]
[Another embodiment]
<1> The sound insulating thin plate 2 is not limited to the polycarbonate thin plate described in the previous embodiment, but may be another resin or metal, a fiber reinforced plate, a glass plate, or the like. Furthermore, it may not have translucency.
<2> The guide slope Y is limited to those provided in the convex portion 5a formed in the frame 3 and the concave portion 4a formed in the pressing edge 4 as described in the previous embodiment. Instead, for example, the concave portion may be formed in the frame 3, the convex portion corresponding to the concave portion may be formed on the pressing edge 4, and the guide slope Y may be formed in the concave portion and the convex portion.
[0015]
In the claims, reference numerals are used for convenience of comparison with the drawings. However, the present invention is not limited to the configurations of the accompanying drawings.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a sound insulation wall. FIG. 2 is an exploded perspective view showing a sound insulation plate. FIG. 3 is a cross-sectional view of the sound insulation plate. Sectional view [Explanation of symbols]
2 Thin plate 3 Frame 4 Pressing member 5 Fixing part 7 Screw member Y Guide slope

Claims (1)

A frame-shaped frame (3) is provided, a sound insulating thin plate (2) that can be fitted into the frame (3) is provided, and the thin plate (2) is disposed between the frame (3) in the thickness direction. A pressing member (4) that is clamped and fixed is provided, and the pressing member (4) can be fixed by contacting along the surface direction of the thin plate (2) in a state of being fitted into the frame (3). The thin plate in a state in which a fixing portion (5) is provided in the frame (3), and the pressing member (4) is fitted into the frame (3) as the pressing member (4) is brought close to the fixing portion (5). A guide slope (Y) is provided on the contact surface between the frame (3) and the pressing member (4) so that the pressing member (4) can be guided close to the pressing member (4). A sound insulating plate provided with a screw member (7) to be attached in the vicinity of the fixing portion (5),
A sound insulating plate in which the screw member (7) is disposed along the inclination direction of the guiding inclined surface (Y).

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