JP6909711B2 - Soundproof panel and soundproof wall - Google Patents

Description

The present invention relates to a soundproof panel inserted between columns installed at predetermined intervals and a soundproof wall provided with the soundproof panel.

A soundproof wall is installed beside the noise source in order to suppress the diffusion of noise emitted from the noise source of vehicles and factories traveling on roads and railroad tracks.
The soundproof wall is constructed by inserting and stacking a plurality of soundproof panels between columns made of, for example, H-shaped steel.
The soundproof panel is formed in a box shape by combining the front plate, the back plate, and the side plates so that the vertical cross-sectional shape is a parallelogram, and the space inside the panel body has an upward inclination from the back plate to the front plate. The sound absorbing material is housed in. In the soundproof panel, by forming a louver on the front plate facing the noise source, the noise transmitted in the panel body can be absorbed by the sound absorbing material (see, for example, Patent Document 1). ..

Japanese Unexamined Patent Publication No. 2013-124483

By the way, the soundproof wall may be installed not only on a flat ground (horizontal portion) but also on a sloped ground. For example, when the soundproof wall 100 is installed on a slope having a slope of more than 3%, as shown in FIG. 9, one of the four corners of the soundproof panel 110 is inserted into the support column P of the H-shaped steel. The soundproof panel 110 may be hindered from being inserted in contact with the soundproof panel 110, which makes the insertion work difficult.
Further, even if the soundproof panel 110 is inserted into the base portion 200 of the soundproof wall 100, the soundproof panel 110 is inserted while the four corners of the soundproof panel 110 are in contact with the support column P, and the soundproof panel 110 is inserted due to contact with the support column P. There is a risk of deformation. Even if the soundproof panel 110 is not deformed, if the insertion work is continued in contact with the support column P, a gap is formed between the foundation portion 200 and the soundproof panel 110, and the installation state of the soundproof panel 110 on the support column P is not stable. Sometimes.
Therefore, for the soundproof wall 100 on the slope, a soundproof panel corresponding to the slope of the slope must be separately manufactured, which leads to an increase in the manufacturing cost of the soundproof panel.

Therefore, the present invention has been made in view of the above problems, and is a soundproof panel that can be easily installed on a soundproof wall installed on a slope, secures a stable installation state, and suppresses manufacturing cost, and the soundproofing. It is intended to provide a soundproof wall with panels.

In order to solve the above problems, the present invention is a soundproof panel that is inserted between columns installed at predetermined intervals and has both end portions supported by the columns to construct a soundproof wall, and the insertion direction. One end side facing the other is longer than the other end side, and at least one side end of the side end sides of the both side ends connecting the one end side and the other end side. The portion side is inclined from the one end side toward the other end side toward the other side end side.

Further, a front wall portion facing the noise source, a back wall portion provided on the back side of the front wall portion at a predetermined distance from the front wall portion, and the front wall portion and the back wall portion. It is provided with a pair of side wall portions provided between the two and forming the side end portion, and at least one of the side wall portions partially protrudes laterally from the front wall portion and the back wall portion. It is preferable that the front wall portion and the back wall portion enter from one end side toward the other end side.

In addition, it is preferably formed line-symmetrically with respect to a straight line passing through the center of each end side.

In order to solve the above problems, the present invention is a soundproof wall, in which a soundproof panel, a plurality of columns installed at predetermined intervals into which the soundproof panel is inserted, and the plurality of columns are erected. The foundation portion is provided with a foundation portion, and the foundation portion has a slope portion inclined from one of the columns toward the other.

According to the present invention, it can be easily installed on a soundproof wall installed on a slope, a stable installation state can be ensured, and a manufacturing cost can be suppressed.

It is a figure which shows the soundproof wall constructed on the slope. It is a partial perspective view which looked at the soundproof panel from the side. It is a front view of a soundproof panel. It is a rear view of a soundproof panel. It is the figure which looked at the side end part of a soundproof panel from above. It is a figure for demonstrating the structure of the side wall part of a soundproof panel. It is a figure for demonstrating the installation method of a soundproof panel. It is an enlarged view of the side end portion of a soundproof panel. It is a figure which shows the installation method of the conventional soundproof panel.

A preferred embodiment of the present invention will be described with reference to the drawings. The embodiment shown below is an example, and various forms can be taken within the scope of the present invention.

<Structure of soundproof wall>
FIG. 1 is a diagram showing a soundproof wall constructed on a slope. FIG. 2 is a partial perspective side view of the soundproof panel as viewed from the side wall portion side. FIG. 3 is a front view of the soundproof panel as viewed from the front wall side. FIG. 4 is a rear view of the soundproof panel as viewed from the back wall side. FIG. 5 is a view of the side end portion of the soundproof panel as viewed from above. 6A and 6B are views for explaining the configuration of the side wall portion of the soundproof panel, FIG. 6A is a plan view of the side wall portion, FIG. 6B is a bottom view of the side wall portion, and FIG. 6C is a bottom view of the side wall portion. , (D) is a front view of the back surface portion of the side wall portion, and (e) is a front view of the side surface portion of the side wall portion.
In the drawing, the extending direction of the soundproof wall 1 and the longitudinal direction (also referred to as the width direction) of the soundproof panel are set to "L", the height direction is set to "H", and the thickness direction is set to "W".

As shown in FIG. 1, the soundproof wall 1 is installed on a slope having a predetermined slope (for example, 6%) in order to suppress the diffusion of noise from a noise source of a vehicle traveling on a road or a railroad track. It is used and is installed beside the noise source. The soundproof wall 1 includes a foundation portion 2, a support column 3, and a soundproof panel 4.

[Foundation]
The foundation portion 2 is a so-called wall balustrade that is constructed on a slope and extends by a predetermined height from the installation surface of the soundproof wall 1. The foundation portion 2 has a slope portion 21 parallel to the slope of the sloped ground at a portion of the soundproof wall 1 where the soundproof panel 4 arranged at the lowermost stage comes into contact. The slope portion 21 is a portion of the soundproof wall 1 where the soundproof panel 4 located at the lowermost stage comes into contact.
In the present embodiment, the support column 3 is erected on the foundation portion 2, but it may be erected directly on the ground such as a road. In this case, the ground becomes the foundation.

[Strut]
The columns 3 are made of H-shaped steel, and a plurality of columns 3 are erected on the foundation portion 2 at predetermined intervals, specifically, at intervals corresponding to the width of the soundproof panel 4.
As shown in FIG. 5, the support column 3 has a pair of flange portions 31, 32 parallel to each other, and a web portion 33 connecting the flange portions 31, 32. The flange portion 31 faces the road side, for example, and the flange portion 32 faces the side opposite to the road.

[Soundproof panel]
As shown in FIG. 1, the soundproof panel 4 is provided between adjacent columns 3, and both end portions in the longitudinal direction L are supported by the columns 3. The soundproof panels 4 are stacked in a plurality of stages along the height direction H of the columns 3.
As shown in FIG. 2, the soundproof panel 4 includes a main body portion 5 and a sound absorbing material 6.

(Main body)
The main body 5 accommodates the sound absorbing material 6, and is formed of, for example, an alloy-plated steel plate. The main body 5 is formed in an inverted trapezoidal shape when viewed from the front, and the length dimension in the longitudinal direction L of the upper upper end side in the height direction H is the length dimension in the longitudinal direction L of the lower lower end side. Is formed longer than.
The pair of side end sides connecting the upper end side and the lower end side of the main body 5 in the height direction H are inclined toward the center of the main body 5 from the upper end side to the lower end side. In other words, one side edge extends so as to approach the other side edge.

The main body 5 includes a front wall 51 arranged on the front side (for example, the side facing the road) of the sound absorbing material 6 and a back wall 52 arranged on the back side (the surface opposite to the front side). , The upper wall portion 53, the lower wall portion 54, and a pair of side wall portions (side end portions) 55 arranged at the ends of the front wall portion 51 and the back wall portion 52 in the longitudinal direction L. ..
The main body portion 5 defines a space for accommodating the sound absorbing material 6 by the front wall portion 51, the back wall portion 52, the upper wall portion 53, the lower wall portion 54, and the side wall portion 55.

The front wall portion 51 extends along the front surface of the sound absorbing material 6. It is made of aluminum. As shown in FIGS. 2 and 4, the front wall portion 51 is a portion extending substantially parallel to the main surface of the sound absorbing material 6, and a louver 51a is formed.

As shown in FIGS. 2 and 4, the back wall portion 52 extends along the back surface of the sound absorbing material 6. The back wall portion 52 is separated from the front wall portion 51 by at least the thickness of the sound absorbing material 6.
The back wall portion 52 has a main surface portion 52a and a bent portion 52b.

The main surface portion 52a is a portion extending substantially parallel to the main surface of the sound absorbing material 6, and two main surface portions 52a are provided with the bent portion 52b interposed therebetween in the height direction H.
The bent portion 52b is a portion that is bent from the main surface portion 52a toward the sound absorbing material 6 in the vicinity of the central portion of the back wall portion 52 in the height direction H. The bent portion 52b extends from one end to the other end of the back wall portion 52 along the longitudinal direction L of the soundproof panel 4.
The bent portion 52b includes an inclined portion 52c extending diagonally downward from the main surface portion 52a of the back wall portion 52 toward the inside of the main body portion 5, an inclined portion 52d extending diagonally upward, and both inclined portions 52c and 52d. It is provided with a connecting portion 52e for connecting the above. The connecting portion 52e extends parallel to the main surface portion 52a of the back wall portion 52, abuts on the sound absorbing material 6 from the back surface side of the sound absorbing material 6, and supports the sound absorbing material 6 from the back surface side.

As shown in FIG. 2, the upper wall portion 53 and the lower wall portion 54 are inclined upward in the height direction H from the back wall portion 52 to the front wall portion 51, respectively. The tip of the upper wall portion 53 is bent downward and extends substantially parallel to the front surface direction of the sound absorbing material 6. Further, in the longitudinal direction L of the soundproof panel 4, notches 53a are formed at both ends of the upper wall portion 53 for inserting a wire (not shown) for preventing falling off, which will be described later (see FIG. 5). .).

The tip of the lower wall portion 54 is bent downward and extends substantially parallel to the front surface direction of the sound absorbing material 6. Further, in the longitudinal direction L of the soundproof panel 4, notches are formed at both ends of the lower wall portion 54 for inserting a wire.

As shown in FIGS. 3 to 5, the front surface portion 55a and the back surface portion 55b of the side wall portion 55 are on the side in the longitudinal direction L from between the front wall portion 51 and the back wall portion 52 in the height direction H. It partially protrudes toward you. The portion of the front surface portion 55a and the back surface portion 55b that protrudes from between the front wall portion 51 and the back wall portion 52 is between the front wall portion 51 and the back wall portion 52 from the upper side to the lower side in the height direction H. I'm in.
The front surface portion 55a and the back surface portion 55b are portions where the front wall portion 51, the back wall portion 52, and the side wall portion 55 overlap along the longitudinal direction L, and are attached at a plurality of locations in the height direction H, for example, by rivets or the like. ..

As shown in FIG. 5, the side wall portions 55 are provided at both side end portions of the main body portion 5 in the longitudinal direction L of the soundproof panel 4, and are arranged between the front wall portion 51 and the back wall portion 52. There is.
Each side wall portion 55 is a plate-shaped member formed in a U-shape in cross-sectional view, and extends over the height direction H of the soundproof panel 4. The side wall portion 55 is made of metal and is formed of, for example, an alloy-plated steel plate.

A hole 55h is formed above the center in the height direction H of the side surface portion 55c of the side wall portion 55 (see FIG. 6E). An eyebolt B is inserted through the hole 55h and attached to the side wall portion 55. A wire rope (not shown) connecting the soundproof panels 4 stacked in the height direction H between the columns 3 of the soundproof wall 1 is inserted into the eyebolt B.

Since the side wall portions 55 provided at both ends of the soundproof panel 4 have the same shape, the soundproof panel 4 is formed symmetrically. The edges (side end sides) of the front surface portion 55a and the back surface portion 55b extending in the height direction H on both side wall portions 55 are from above to below with respect to the upper end side and the lower end side, respectively. It is equally inclined so as to approach the side wall portion 55 facing toward. That is, the soundproof panel 4 is formed line-symmetrically with respect to a straight line passing through the center of each of the upper and lower end sides.

As shown in FIGS. 6A and 6B, the side wall portion 55 has a thickness of a front portion 55a extending parallel to the front wall portion 51 and a back surface portion 55b extending parallel to the back wall portion 52. It has a side surface portion 55c extending in the longitudinal direction W and covering the side of the main body portion 5, and has a U-shape in a plan view. The front surface portion 55a and the back surface portion 55b are erected in the same direction from both ends of the side surface portion 55c in the thickness direction W.

As shown in FIG. 6C, the front surface portion 55a extends so that the edge portion (side end portion side) opposite to the side surface portion 55c approaches the side surface portion 55c from the upper end portion to the lower end portion. Exists. That is, the dimension of the front surface portion 55a of the side wall portion 55 along the longitudinal direction L changes continuously along the height direction H, and specifically, continuously from the upper end portion to the lower end portion. It's getting smaller.
For example, the dimension of the front surface portion 55a at the upper end portion in the longitudinal direction L is 1.3. It is ~ 1.5 times, and particularly preferably 1.4 times.

As shown in FIG. 6D, the back surface portion 55b is divided into two in the height direction H so as to avoid the bent portion 52b of the back wall portion 52. That is, the side wall portion 55 has an upper back surface portion 55bu and a lower back surface portion 55bd in the height direction H. The two back surface portions 55bu and 55bd are similar in size to each other, although they are different in size. The two back surface portions 55bu and 55bd are separated from each other so as to avoid the bent portion 52b of the back wall portion 52.

The back surface portions 55bu and 55bd extend so that the edge portion (side end portion side) on the side opposite to the side surface portion 55c approaches the side surface portion 55c from the upper end portion to the lower end portion. That is, the dimensions of the back surface portions 55bu and 55bd of the side wall portion 55 along the longitudinal direction L continuously change along the height direction H, and specifically, are continuous from the upper end portion to the lower end portion. Is getting smaller. This relationship naturally applies even when the back surface portion 55b is viewed as one back surface portion 55b instead of the two back surface portions 55bu and 55bd.
For example, the dimension of the back surface portion 55bu at the upper end portion in the longitudinal direction L is 1.3. It is ~ 1.5 times, and particularly preferably 1.4 times.

As shown in FIG. 6E, the side surface portion 55c has a shape corresponding to the extending shape of the back wall portion 52 in the height direction H. Specifically, the side surface portion 55c has a notch portion 7 cut out along the shape of the bent portion 52b of the back wall portion 52 on the back surface portion 55b side.
A plurality of wall portions 71, 72, 73 are erected along the notch portion 7 of the side surface portion 55c, that is, along the inclined portions 52c, 52d and the connecting portion 52e of the back wall portion 52. (See FIG. 6 (d)).

The side wall portion 55 is formed by dividing the back surface portion 55b into two or providing a notch portion 7 on the side surface portion 55c according to the shape of the bent portion 52b of the back wall portion 52. The presence of the bent portion 52b can prevent the installation of the side wall portion 55 from being hindered.

(Sound absorbing material)
As shown back to FIG. 4, the sound absorbing material 6 is housed in the main body 5. The sound absorbing material 6 is, for example, a plate-shaped member formed in a rectangular shape in a plan view according to the size of the unit of the soundproof panel 4. The sound absorbing material 6 is arranged so that the front side faces the site.
The sound absorbing material 6 is formed of, for example, a fiber material such as polyester or glass wool, a sponge material formed of a resin such as urethane, a cushioning material filled with cotton or feathers, or a combination thereof. ..

<Installation of soundproof panel>
Next, the installation of the soundproof panel 4 between the columns 3 will be described with reference to FIGS. 7 and 8. FIG. 7 is a diagram for explaining the installation of the soundproof panel on the soundproof wall on a slope. FIG. 8 is an enlarged view of a partially enlarged side wall portion of the soundproof panel.

When the soundproof wall 1 is constructed on a slope, the slope portion 21 of the foundation portion 2 on which the soundproof panel 4 is installed is substantially parallel to the slope. That is, the gradient portion 21 forms a predetermined angle with respect to the horizontal plane.

When a conventional rectangular soundproof panel is used for a soundproof wall constructed on a slope, the soundproof panel is tilted according to the slope of the slope and dropped (inserted) between the columns. However, in this case, for example, as shown in FIG. 9, the upper left corner portion and the lower right corner portion of the soundproof panel 110 may come into contact with the support column P. The contact between the soundproof panel 110 and the support column P hinders the soundproof panel 110 from being dropped into the support column P, and the soundproof panel 110 cannot be properly installed on the soundproof wall 100.

On the other hand, in the soundproof panel 4, one side end portion of the side wall portion 55 provided at both side ends in the longitudinal direction L of the main body portion 5 is the other side wall portion 55 from the upper side to the lower side in the height direction H. It is tilted to approach.
Thus, even if the soundproof panel 4 is tilted according to the slope of the slope and inserted between the columns 3, the soundproof panel 4 is moved toward the web portion 33 side of the column 3 by the amount of the narrowed width of the side wall portion 55. It is possible to prevent the upper left corner of the soundproof panel 4 from coming into contact with the web portion 33 of the support column 3, and also prevent the lower right portion of the soundproof panel 4 from coming into contact with the web portion 33 of the support column 3. Can be done.
Even when the soundproof panel 4 is installed on the soundproof wall 1 on a slope, the space between the columns 3 is not formed between the lower wall portion 54 of the soundproof panel 4 and the slope portion 21 of the foundation portion 2. Can be installed in. That is, in the soundproof wall 1 constructed on the slope, the soundproof panel 4 can be dropped until the lower wall portion 54 of the soundproof panel 4 comes into surface contact with the slope portion 21 of the foundation portion 2.
Further, the soundproof panels 4 can be stacked without forming a gap between the upper wall portion 53 of the installed soundproof panel 4 and the lower wall portion 54 of the stacked soundproof panels 4 in surface contact with each other. can.

The side wall portion 55 is partially projected laterally from between the front wall portion 51 and the back wall portion 52 to adjust the lengths of the upper end side and the lower end side of the soundproof panel 4. It corresponds to the soundproof wall 1 constructed on the slope. As a result, it is not necessary to process the side portions of the front wall portion 51 and the back wall portion 52 in the longitudinal direction L, only the side wall portion 55 is processed, and the number of members to be processed in the soundproof panel 4 can be suppressed. can.

Since the soundproof panel 4 is formed symmetrically with respect to a straight line passing through the center of each of the upper and lower end sides, the soundproof panel 4 is formed between the columns 3 with the front wall portion 51 facing the road side regardless of the direction of the gradient. The construction efficiency of the soundproof wall 1 is improved just by dropping it.
Further, since the soundproof panel 4 is inserted between the columns 3 from the lower end side (lower wall portion 54 side) having a small dimension in the longitudinal direction L, the soundproof panel 4 can be more easily inserted between the columns 3. It also becomes.

The soundproof panel 4 can be used, for example, for a soundproof wall 1 constructed on a slope having a slope of up to 6%. Since it is not necessary to manufacture the soundproof panel according to the slope each time, the soundproof panel 4 can be used for the soundproof wall constructed on the sloped ground having various slopes, and the manufacturing cost can be suppressed.

<Others>
The present invention is not limited to the above-described embodiment, and can be appropriately modified without exceeding the scope of the present invention. For example, if the soundproof panel 4 can be installed between the columns 3 of the soundproof wall 1 constructed on a slope without contacting the columns 3, the side wall portion 55 is one side of the soundproof panel 4. It may only be provided at the end.
In this case, the width dimensions of the front surface portion and the back surface portion in the longitudinal direction L of the side wall portion provided at the other side end portion of the soundproof panel 4 do not change over the height direction H, unlike the side wall portion 55. .. That is, the side wall portion provided at the other side end portion has the same width dimension consistently in the height direction H, and the front surface portion and the back surface portion each have a rectangular shape.

Further, it is preferable that the width dimension of the flange portion 32 in the longitudinal direction L is 175 mm or more. As a result, even when the soundproof panel 4 is installed between the columns 3, the edge of the side wall portion 55 on the side wall portion 55 opposite to the side surface portion 55c is the width dimension of the flange portion 32 of the column portion 3. It will be located inside. That is, for example, when the soundproof wall 1 is viewed from the front wall portion 51 side, no gap is formed between the soundproof panel 4 and the support column 3, and the side wall portion 55 of the soundproof panel 4 is surely formed on the support column 3. Is supported by.

1 Soundproof wall 2 Foundation part 21 Gradient part 3 Strut 4 Soundproof panel 5 Main body part 51 Front wall part 52 Back wall part 53 Upper wall part 54 Lower wall part 55 Side wall part (side end)
6 Sound absorbing material

Claims (4)

A soundproof panel that is inserted between columns installed at predetermined intervals and has both end portions supported by the columns to form a soundproof wall.
One end side facing the insertion direction is longer than the other end side,
At least one side end side of the side end sides of the both side ends connecting the one end side and the other end side is from the one end side to the other end side. A soundproof panel characterized by being inclined toward the other side edge side. The front wall facing the noise source and
A back wall portion provided on the back side of the front wall portion at a predetermined distance from the front wall portion, and a back wall portion.
A pair of side wall portions provided between the front wall portion and the back wall portion to form the side end portion, and a pair of side wall portions.
With
The at least one side wall portion partially projects laterally from the front wall portion and the back wall portion, and the front wall portion and the back wall portion from the one end side toward the other end side. The soundproof panel according to claim 1, wherein the soundproof panel is inserted between the parts and the unit. The soundproof panel according to claim 1 or 2, wherein the soundproof panel is formed line-symmetrically with respect to a straight line passing through the center of each end side. The soundproof panel according to any one of claims 1 to 3,
A plurality of columns installed at predetermined intervals into which the soundproof panel is inserted, and
It is provided with a foundation on which the plurality of columns are erected.
The foundation portion is a soundproof wall having a slope portion inclined from one of the columns toward the other column.

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