JP7656358B2 - Soundproofing panels - Google Patents

Description

The present invention relates to soundproofing panels that are installed at construction sites, demolition sites, etc.

Traditionally, at construction sites, demolition sites, and other construction sites, scaffolding is set up to carry out work. In such cases, it is common to cover the sides of the scaffolding with sheets or soundproof panels to minimize the leakage of dust and noise generated at the construction site.

When a typhoon or other storm passes, soundproofing panels installed on the sides of scaffolding are subjected to lateral loads from strong winds. This effect is particularly pronounced at high-altitude construction sites such as buildings. For this reason, when strong winds are predicted, it has become necessary to take measures against strong winds, such as temporarily removing soundproofing panels.

Therefore, in Patent Document 1, the soundproofing panels covering the side sections are configured to be openable and closable. This allows wind to pass through the gaps in the open soundproofing panels, reducing the load caused by the wind.

JP 2021-110108 A

However, opening the soundproofing panels completely increases the risk of objects, such as tools, falling through the openings.

The present invention was made in consideration of the above problems, and its purpose is to provide a soundproofing panel that does not allow objects larger than a certain size to pass through even when open.

The means for solving the above problem is a soundproof panel that covers the periphery of a construction object at a construction site,
A frame body having at least a vertical frame extending in the vertical direction;
a shielding panel that covers an area surrounded by the frame body,
The shielding panel is configured by stacking a plurality of panel bodies,
Each of the panel bodies is provided with a ventilation hole,
At least one of the plurality of panel bodies is a slide panel that is slidable in the up and down direction along the vertical frame,
When the slide panel is slid to a first position, the ventilation holes of the panel bodies overlap, whereas when the slide panel is slid to a second position different from the first position, the ventilation holes of the panel bodies are blocked by each other's panel bodies;
a lock mechanism that restricts the sliding movement of the slide panel when the slide panel is in an upper position;
The locking mechanism is arranged at a center side in a left-right direction perpendicular to the up-down direction which is the sliding direction.

As a result, when strong winds are predicted, the panel body can be slid to overlap the ventilation holes to allow wind to pass through. This eliminates the need to dismantle and remove the soundproof panel in the event of strong winds. Also, by adjusting the size of the ventilation holes, it is possible to allow wind to pass through while preventing objects larger than a certain size from passing through.

In addition, when sliding up and down, the sliding panel may move due to its own weight. Therefore, a locking mechanism is provided to restrict the sliding movement. This prevents the sliding panel from moving due to its own weight and opening or closing the ventilation holes unintentionally.

FIG. FIG. 1 is a perspective view showing a typical installation state of a soundproofing panel at a construction site. FIG. A rear view showing the soundproofing panel from the back. Cross-section of the horizontal frame. Cross-section of the vertical frame. FIG. FIG. 4A is a front view of a soundproof panel when closed, and FIG. 4B is a front view of the soundproof panel when open. FIG. 6 is a front view showing a soundproof panel of a second embodiment as viewed from the front side. FIG. 11 is a rear view showing the soundproof panel of the second embodiment as seen from the back side. 1A is a cross-sectional view taken along line A1-A1, and FIG. 1B is a cross-sectional view taken along line B1-B1. FIG. 11 is a rear view showing the soundproof panel of the second embodiment when opened. 1A is a cross-sectional view taken along line A2-A2, and FIG. 1B is a cross-sectional view taken along line B2-B2. 1A is a front view of a modified soundproof panel, and FIG. 1B is a rear view of the modified soundproof panel. FIG. FIG.

Below, an embodiment of the "soundproof panel" according to the present invention will be described with reference to the drawings. In the following embodiments and modified examples, parts that are identical or equivalent to each other are given the same reference numerals in the drawings, and the explanations of the parts with the same reference numerals are incorporated herein. In addition to the combinations of configurations explicitly stated in the explanation of the embodiments and modified examples, it is also possible to combine the embodiments and modified examples as long as there is no particular problem with the combination.

First Embodiment
1, at a construction site such as a construction site, a demolition site, or a civil engineering site, a temporary scaffolding 11 is installed around a building 10. The building 10, which is the object of construction, is an object to be constructed at a construction site or a civil engineering site, and is an object to be demolished at a demolition site.

This scaffolding 11 has a well-known configuration and includes, for example, a number of vertical supports 12, horizontal scaffolding piping 13 fixed between the vertical supports 12, and scaffolding boards 14 attached to the horizontal scaffolding piping 13.

As shown in FIG. 2, the soundproof panel 20 is provided on the side of the scaffolding 11 and covers the side of the scaffolding 11. More specifically, the soundproof panel 20 is provided on the side of the scaffolding 11 opposite the building 10, and covers the side of the scaffolding 11 to prevent dust such as fine concrete powder generated at the construction site and noise from leaking to the outside. The soundproof panel 20 also prevents objects other than dust (such as tools) from falling and prevents workers from falling. Note that FIG. 2 shows the soundproof panel 20 in a schematic manner, and the detailed configuration and diagrams will be described later.

Conventionally, soundproofing panels are expected to prevent dust and noise from leaking to the outside, and so naturally do not allow wind to pass through. For this reason, when a strong wind blows, the wind load is applied to the soundproofing panel, making it more susceptible to being blown around by the wind. Depending on the height of the building, scaffolding may be installed across multiple floors, in which case there is a risk of the building collapsing due to being blown around by strong winds. For this reason, conventionally, when strong winds are expected in weather conditions (e.g., in the case of a typhoon), the soundproofing panels and scaffolding have had to be dismantled and removed, which was very time-consuming. Therefore, in this embodiment, the soundproofing panel 20 is constructed as follows. This will be explained in detail below.

Note that Fig. 3 is a front view of the soundproof panel 20 when viewed from the outside (the so-called front side), and Fig. 4 is a rear view of the soundproof panel 20 when viewed from the inside (the building 10 side or the scaffolding 11 side) (the so-called back side). In this embodiment, the depth direction is the direction perpendicular to the soundproof panel 20, with the building 10 side corresponding to the inside in the depth direction and the side opposite the building 10 corresponding to the outside in the depth direction.

As shown in Figures 3 and 4, the soundproof panel 20 includes a rectangular frame body 30 and a shielding panel 40 that covers the inside of the frame body 30. The shielding panel 40 is made up of a plurality of overlapping panel bodies, and in this embodiment, it is made up of two overlapping panel bodies, an inner panel 41 that is disposed on the inside and an outer panel 42 that is disposed on the outside.

First, the frame body 30 will be described. As shown in FIG. 3, the frame body 30 has a pair of vertical frames 31 and a pair of horizontal frames 32, and is rectangular in shape with the horizontal frames 32 being longer than the vertical frames 31. The soundproof panel 20 is usually arranged so that the vertical frames 31 run along the up-down direction and the horizontal frames 32 run along the left-right direction (horizontal direction). In other words, the vertical frames 31 are arranged on both the left and right sides, and the horizontal frames 32 are arranged on the top and bottom sides.

Of the pair of vertical frames 31, the one located on the right side when viewed from the outside (front side) (in FIG. 3) may be referred to as the right frame 31R, and the one located on the left side as the left frame 31L. Of the pair of horizontal frames 32, the one located on the upper side may be referred to as the upper frame 32U, and the one located on the lower side may be referred to as the lower frame 32D.

The vertical frame 31 and the horizontal frame 32 have a rail shape with a U-shaped cross section. In detail, as shown in FIG. 5(a), the upper frame 32U has an inner side wall 33 arranged on the inside, an outer side wall 34 arranged on the outside, and a bottom 35. Although not shown, the lower frame 32D is similar to the upper frame 32U. Similarly, as shown in FIG. 6(a), the right frame 31R also has an inner side wall 33 arranged on the inside, an outer side wall 34 arranged on the outside, and a bottom 35. Although not shown, the left frame 31L is similar. And the vertical frame 31 and the horizontal frame 32 are each arranged so as to open on the inside of the frame body 30. In other words, the lower frame 32D is arranged so that the bottom 35 is located below so as to open upward, and the upper frame 32U is arranged so that the bottom 35 is located above so as to open downward. Similarly, the right frame 31R is positioned so that the bottom 35 is located on the right side so that it opens to the left, and the left frame 31L is positioned so that the bottom 35 is located on the left side so that it opens to the right.

The outer edge portion of the shielding panel 40 is housed inside these vertical frames 31 and horizontal frames 32. That is, the upper edge portion of the shielding panel 40 is housed between the inner side wall 33 and the outer side wall 34 of the upper frame 32U, and the lower edge portion of the shielding panel 40 is housed between the inner side wall 33 and the outer side wall 34 of the lower frame 32D. Similarly, the right edge portion of the shielding panel 40 is housed between the inner side wall 33 and the outer side wall 34 of the right frame 31R, and the left edge portion of the shielding panel 40 is housed between the inner side wall 33 and the outer side wall 34 of the left frame 31L. As shown in Figures 5 and 6, the inner panel 41 and the outer panel 42 that make up the shielding panel 40 are housed in a stacked state.

Next, the shielding panel 40 will be described. As shown in FIG. 4, the inner panel 41 constituting the shielding panel 40 is composed of a single rectangular plate. The material of the inner panel 41 is arbitrary, but for example, it is composed of a thin metal plate. The inner panel 41 is fixed to the frame body 30 so as to cover the entire area surrounded by the frame body 30. In this case, as shown in FIG. 5 and FIG. 6, the outer edge portion of the inner panel 41 is housed inside the vertical frame 31 and the horizontal frame 32, respectively, and is fixed to the inner side wall 33. The outer edge portion of the inner panel 41 is fixed by any fixing method such as welding, screwing, or adhesive. In other words, the inner panel 41 is a fixed panel that does not move relative to the frame body 30.

As shown in FIG. 4, the inner panel 41 is provided with a number of ventilation holes 41a. The ventilation holes 41a are round, but may be any shape, such as rectangular or elongated. The ventilation holes 41a are aligned vertically and horizontally at a predetermined interval so as to form multiple rows in the vertical direction and multiple rows in the horizontal direction. In short, the inner panel 41 is a punched metal, which is a metal plate that has been punched using a die. Also, a slit 41b extending vertically is formed in the center of the inner panel 41.

Next, the outer panel 42 constituting the shielding panel 40 will be described. As shown in FIG. 3, the outer panel 42 is composed of a single rectangular plate. The material of the outer panel 42 is arbitrary, but it is composed of a thin metal plate, for example.

The outer panel 42 is large enough to cover most of the area surrounded by the frame body 30. Specifically, the dimension of the outer panel 42 in the left-right direction is the same as the dimension of the inner panel 41 in the left-right direction. Therefore, when the outer panel 42 is attached to the frame body 30, no gap is formed between the outer panel 42 and the right frame 31R or the left frame 31L.

On the other hand, the vertical dimension of the outer panel 42 is shorter than the vertical dimension of the inner panel 41. Therefore, as shown in FIG. 8, when the outer panel 42 is attached to the frame body 30, a gap is formed between the outer panel 42 and the upper frame 32U or the lower frame 32D. Note that FIG. 8 is a view of the soundproof panel 20 as seen from the front side, and the inner panel 41 is shown hatched.

The outer panel 42 is housed in the frame body 30 so as to be able to slide up and down relative to the frame body 30. In other words, the left and right outer edge portions of the outer panel 42 are housed inside the right frame 31R and the left frame 31L, but are not fixed to the right frame 31R and the left frame 31L so as to be able to slide up and down. In other words, the outer panel 42 is a slide panel that is able to slide up and down relative to the frame body 30, and the right frame 31R and the left frame 31L are slide rails that hold the outer panel 42 so that it can slide up and down.

As shown in Figs. 4 and 7, a handle 42b is fixed to the outer panel 42 at approximately the center thereof. As shown in Fig. 7, the handle 42b is formed in an L-shaped plate shape, with its base end fixed to the outer panel 42 and its tip perpendicular to the outer panel 42. In more detail, as shown in Fig. 7, the tip of the handle 42b is inserted from the outside to the inside of the outer panel 42 through a through hole 42c formed in the outer panel 42. The base end of the handle 42b is fixed to the outer side surface of the outer panel 42. The base end is fixed to the outer panel 42 by any fixing method such as welding, screwing, or adhesive.

The tip of the handle 42b protrudes inward through a slit 41b formed in the inner panel 41. As shown in FIG. 4, the left-right dimension of the slit 41b is equal to or greater than the left-right dimension of the handle 42b. As shown in FIG. 7, the vertical dimension of the slit 41b is a predetermined distance L1 so that the handle 42b can be slid up and down by the predetermined distance L1. By grasping the handle 42b and sliding it up and down, the outer panel 42 can be easily slid from the inside of the soundproof panel 20 (the scaffolding side, the construction object side).

The outer panel 42 is also provided with multiple ventilation holes 42a. The ventilation holes 42a are round, but may be any shape, such as rectangular or elongated. The ventilation holes 42a are aligned vertically and horizontally at a predetermined interval so as to form multiple rows in the vertical direction and multiple rows in the horizontal direction. In short, the outer panel 42 is a punched metal, which is a metal plate that has been processed to have holes punched using a die.

The shape, number, and arrangement of the ventilation holes 42a in the outer panel 42 are determined so as to match the ventilation holes 41a in the inner panel 41. In other words, the ventilation holes 42a in the outer panel 42 are the same in number as the ventilation holes 41a in the inner panel 41, and are round holes of the same diameter. Furthermore, the number of ventilation holes 42a arranged vertically and horizontally in the outer panel 42 is the same as the number of ventilation holes 41a arranged vertically and horizontally in the inner panel 41, and the arrangement interval of the ventilation holes 42a is the same as the arrangement interval of the ventilation holes 41a.

8(a) shows a front view of the soundproof panel 20 in a state where the outer panel 42 is slid downward and the lower edge of the outer panel 42 is housed in the lower frame 32D. In FIG. 8, the inner panel 41 is hatched for convenience of illustration. As shown in FIG. 8(a), when the outer panel 42 is disposed downward, the ventilation holes 41a, 42a of each panel are blocked by the respective panels 41, 42. In other words, when the lower edge of the outer panel 42 is housed in the lower frame 32D, the ventilation holes 42a of the outer panel 42 are blocked by the inner panel 41, and the ventilation holes 41a of the inner panel 41 are blocked by the outer panel 42, as shown in FIG. 5(a), FIG. 6(a), and FIG. 7(a). In this embodiment, when the lower edge of the outer panel 42 is housed in the lower frame 32D, this corresponds to the outer panel 42 being disposed in the second position.

Figure 8(b) shows a front view of the soundproof panel 20 with the outer panel 42 slid upward and the upper edge of the outer panel 42 housed in the upper frame 32U. As shown in Figure 8(b), when the outer panel 42 is positioned upward, the positions of the ventilation holes 42a of the outer panel 42 and the ventilation holes 41a of the inner panel 41 are approximately aligned. As a result, as shown in Figures 5(b), 6(b), and 7(b), the ventilation holes 42a of the outer panel 42 and the inner panel 41 communicate with each other and penetrate the inside and outside of the shielding panel 40. In this embodiment, when the upper edge of the outer panel 42 is housed in the upper frame 32U, this corresponds to the outer panel 42 being disposed in the first position.

Next, we will explain how to use and the effects of the soundproof panel 20 of this embodiment.

Under normal circumstances, as shown in FIG. 8(a), the outer panel 42 is slid downward so that the lower edge of the outer panel 42 is housed in the lower frame 32D. This blocks all ventilation holes 41a, 42a, preventing dust, noise, and the like from leaking to the outside. In addition, because the sliding outer panel 42 is positioned on the outside, even if a tool or worker bumps into it from the inside, the outer panel 42 is prevented from shifting and opening the ventilation holes 41a, 42a. In addition, because the outer panel 42 is positioned downward, it will not shift upward due to its own weight or vibration, preventing the ventilation holes 41a, 42a from opening.

On the other hand, when strong winds are expected, the outer panel 42 is slid upward as shown in FIG. 8(b) so that the upper edge of the outer panel 42 is housed in the upper frame 32U. As a result, as shown in FIG. 5(b), FIG. 6(b), and FIG. 7(b), the positions of the ventilation holes 42a of the outer panel 42 and the ventilation holes 41a of the inner panel 41 are approximately aligned and communicate with each other, allowing wind to pass through optimally. This prevents the soundproof panel 20 from collapsing due to strong winds, etc.

When open, the soundproof panel 20 allows air to pass through the ventilation holes 41a, 42a while preventing objects larger than the ventilation holes 41a, 42a from falling to the outside. Therefore, by adjusting the size of the ventilation holes 41a, 42a, tools and other objects can be prevented from falling to the outside even when the soundproof panel 20 is open.

In addition, because the shielding panel 40 covers the inside of the frame body 30, dust and dirt such as concrete pieces tend to hit the shielding panel 40, fall off, and accumulate under the shielding panel 40. However, the inner panel 41 is fixed to the inner side wall 33 of the frame body 30, and the outer panel 42 is arranged on the outside and is configured to slide up and down along the vertical frame 31. Therefore, even in sites where dust and dirt are likely to be generated, dust and dirt do not get inside the frame body 30, and it can be slid appropriately.

Dust such as concrete fragments hit the shielding panel 40 and fall, apt to accumulate under the shielding panel 40. For this reason, if ventilation holes 41a, 42a are provided near the bottom edge of the shielding panel 40, dust and other debris that has accumulated under the panel's feet will easily scatter to the outside when the panel is open. Therefore, the ventilation holes 41a, 42a are positioned above the lower frame 32D by a predetermined distance L2 or more. This makes it possible to prevent dust and other debris that has accumulated under the panel's feet from scattering to the outside when the panel is open.

In addition, because the inner panel 41 and the outer panel 42 are in close contact with each other, the frictional force prevents them from moving downward under their own weight. In other words, when the outer panel 42 is moved upward, it will not move downward unless a downward force of a predetermined magnitude or more is applied to the outer panel 42.

(Modification)
In the above embodiment, the frame 30 is rectangular, but it may be square. Also, the frame 30 may be rectangular in shape and be elongated in the vertical direction.

- In the above embodiment, if the outer panel 42 is configured to be slidable, it may be slidable in the left-right direction.

- In the above embodiment, the number and arrangement of the handles 42b may be changed as desired. The shape may also be changed as desired.

- In the above embodiment, the frame body 30 may be provided with a pillar member extending in the vertical direction to connect the upper frame 32U and the lower frame 32D. For example, a pillar member formed to extend in the vertical direction may be provided in the center of the frame body 30 in the left-right direction. This pillar member is intended to reinforce the frame body 30.

- In the above embodiment, if the panel is to be slid up and down, the positions of the inner panel 41 and the outer panel 42 may be interchanged in the depth direction. In other words, if the panel is to be slid up and down, the inner panel body may be configured to be slid up and down.

- In the above embodiment, the ventilation holes 41a, 42a may be opened when the outer panel 42 is slid downward, and may be configured to be closed when the outer panel 42 is slid upward.

- In the above embodiment, a locking mechanism may be provided to restrict movement of the outer panel 42. For example, when the soundproof panel 20 is open (or closed), a through hole may be provided through the inner panel 41 and the outer panel 42, and a latch may be inserted into the through hole to restrict movement in the vertical direction. This prevents the open ventilation holes 41a, 42a from closing unintentionally, and prevents the closed ventilation holes 41a, 42a from opening unintentionally. When the soundproof panel 20 is open, the ventilation holes 41a, 42a may be used as the through hole through which the latch is inserted.

- In the above embodiment, when the upper edge of the outer panel 42 is housed inside the upper frame 32U, the positions of the ventilation holes 41a, 42a are aligned, but they may be aligned even if they are not housed inside the upper frame 32U. In other words, when the panel is moved to a predetermined arbitrary first position, the positions of the ventilation holes 41a, 42a may be aligned. Similarly, when the lower edge of the outer panel 42 is housed inside the lower frame 32D, the ventilation holes 41a, 42a are blocked, but they may be blocked even if they are not housed inside the lower frame 32D. In other words, when the panel is moved to a predetermined arbitrary second position, the ventilation holes 41a, 42a may be blocked. It is preferable that the first position is higher than the second position.

- In the above embodiment, a sliding mechanism such as a wheel may be provided to allow the outer panel 42 to slide smoothly, or protrusions may be provided on both left and right ends of the outer panel 42 to make point or line contact with the vertical frame 31.

- In the above embodiment, the shielding panel 40 may be composed of three or more panel bodies. For example, two fixed panels (corresponding to the inner panel 41 described above) may be arranged on the inside and outside in the depth direction, and a sliding panel (corresponding to the outer panel 42 described above) may be arranged between the two fixed panels, with the sliding panel being sandwiched between the two fixed panels from the depth direction. In this way, even if something hits the soundproof panel 20 from the outside (front side), the sliding panel sandwiched between the two fixed panels can be prevented from shifting. In other words, it is possible to prevent the open ventilation holes 41a, 42a from unintentionally closing, and the closed ventilation holes 41a, 42a from unintentionally opening.

- In the above embodiment, the soundproofing panel 20 is not limited to the side of the scaffolding 11, but may also surround the periphery of a building (construction target). For example, at a construction site, the soundproofing panel 20 may be used as a temporary enclosure panel that surrounds the periphery of the building 10.

Second Embodiment
A soundproof panel 120 according to a second embodiment, which is a partial modification of the structure of the soundproof panel according to the first embodiment, will be described with reference to FIGS.

Note that Fig. 9 is a front view of the soundproof panel 120 when viewed from the outside (the so-called front side), and Fig. 10 is a rear view of the soundproof panel 20 when viewed from the inside (the so-called back side). In addition, in the second embodiment, the depth direction is the direction perpendicular to the soundproof panel 120, with the side facing the building 10 corresponding to the inside in the depth direction and the side opposite the building 10 corresponding to the outside in the depth direction.

As shown in Figures 9 and 10, the soundproof panel 120 comprises a frame body 130 formed in a substantially square shape, and a shielding panel 140 that covers the inside of the frame body 130. The shielding panel 140 is constructed by stacking a number of panel bodies, and in this embodiment, it is constructed by stacking two panel bodies, an inner panel 141 arranged on the inside, and an outer panel 142 arranged on the outside. Note that in Figures 9 and 10, the panel body arranged on the rear side as viewed from the paper surface is hatched for convenience of illustration.

First, the frame body 130 will be described. As shown in FIG. 9, the frame body 130 has a pair of vertical frames 131 and a pair of horizontal frames 132. The length dimension of the vertical frames 131 and the length dimension of the horizontal frames 132 are approximately the same, and the frame body 130 is approximately square-shaped.

Of the pair of vertical frames 131, the one located on the right side when viewed from the outside (front side) (in FIG. 9) may be referred to as right frame 131R, and the one located on the left side as left frame 131L. Of the pair of horizontal frames 132, the one located on the upper side may be referred to as upper frame 132U, and the one located on the lower side may be referred to as lower frame 132D.

The vertical frame 131 will now be described. The right frame 131R and left frame 131L of the vertical frame 131 are configured symmetrically. For this reason, the explanation will focus on the right frame 131R, and some explanation of the left frame 131L will be omitted. The right frame 131R comprises an inner frame portion 133 arranged on the inside, and an outer frame portion 134 arranged on the outside. As shown in FIG. 11(a), both the inner frame portion 133 and the outer frame portion 134 have an L-shaped cross section, and are arranged so that the inner frame portion 133 is overlapped inside the outer frame portion 134.

To explain in more detail, the outer frame portion 134 has a first portion 134a that is wide in the left-right direction, and a second portion 134b that is erected at one end of the first portion 134a in the left-right direction and is wide in the depth direction. In the right frame 131R, the second portion 134b is erected to the right of the first portion 134a, and in the left frame 131L, the second portion 134b is erected to the left of the first portion 134a.

Similarly, the inner frame portion 133 has a first portion 133a that is wider in the left-right direction, and a second portion 133b that is erected at one end of the first portion 133a in the left-right direction and is wider in the depth direction. In the right frame 131R, the second portion 133b is erected on the right side of the first portion 133a, and in the left frame 131L, the second portion 133b is erected on the left side of the first portion 133a.

The first portion 133a of the inner frame portion 133 is disposed inside the outer frame portion 134 so as to face the first portion 134a of the outer frame portion 134 at a predetermined distance in the depth direction. On the other hand, the second portion 133b of the inner frame portion 133 is overlapped on the second portion 134b of the outer frame portion 134 and is fixed by a fixing member 165 such as a bolt.

Because of this configuration, as shown in FIG. 11(a), in the right frame 131R, the gap formed by the first parts 133a, 134a is blocked on the right side by the second part 134b of the outer frame portion 134, while opening to the left side. Also, in the left frame 131L, the gap formed by the first parts 133a, 134a is blocked on the left side by the second part 134b of the outer frame portion 134, while opening to the right side.

The upper frame 132U of the horizontal frame 132 has a configuration similar to that of the vertical frame 131. That is, as shown in FIG. 11(b), the upper frame 132U has an inner frame portion 135 having an L-shaped cross section and an outer frame portion 136 having an L-shaped cross section, and is arranged so that the inner frame portion 135 is overlapped inside the outer frame portion 136.

To explain in more detail, the outer frame portion 136 of the upper frame 132U has a first portion 136a that is wider in the vertical direction, and a second portion 134b that stands upright at the upper end of the first portion 136a and is wider in the depth direction. Similarly, the inner frame portion 135 of the upper frame 132U has a first portion 135a that is wider in the vertical direction, and a second portion 135b that stands upright at the upper end of the first portion 135a and is wider in the depth direction.

In the upper frame 132U, the first portion 135a of the inner frame portion 135 is disposed inside the outer frame portion 136 so as to face the first portion 136a of the outer frame portion 136 at a predetermined distance in the depth direction. On the other hand, the second portion 135b of the inner frame portion 135 is overlapped on the second portion 136b of the outer frame portion 136 and is fixed by a fixing member 165 such as a bolt.

Because of this configuration, as shown in FIG. 11(b), the gap formed by the first portions 135a and 136a in the upper frame 132U is closed at the top by the second portion 136b of the outer frame portion 136, while opening at the bottom.

On the other hand, the lower frame 132D of the horizontal frame 132 has a configuration similar to that of the vertical frame 131 and the upper frame 132U, but has some changes. To explain in detail, as shown in FIG. 11(b), the lower frame 132D has an inner frame portion 137 having an L-shaped cross section and an outer frame portion 138 having an L-shaped cross section, and the inner frame portion 137 is disposed inside the outer frame portion 138. The outer frame portion 138 of the lower frame 132D has a first portion 138a that is wide in the vertical direction and a second portion 138b that is erected at the lower end of the first portion 138a and is wide in the depth direction. Similarly, the inner frame portion 137 of the lower frame 132D has a first portion 137a that is wide in the vertical direction and a second portion 137b that is erected at the lower end of the first portion 137a and is wide in the depth direction.

In the lower frame 132D, the first portion 137a of the inner frame portion 137 is disposed inside the outer frame portion 138 so as to face the first portion 138a of the outer frame portion 138 at a predetermined distance in the depth direction. Therefore, in the lower frame 132D, the gap formed by the first portions 137a, 138a is closed on the lower side by the second portion 138b of the outer frame portion 138, while opening on the upper side.

In addition, in the lower frame 132D, the second portion 137b of the inner frame portion 137 is disposed opposite the second portion 138b of the outer frame portion 138 so as to form a gap of a predetermined width in the vertical direction. Specifically, in the lower frame 132D, the second portion 137b of the inner frame portion 137 is placed on the second portion 138b of the outer frame portion 138 via a number of nuts 161 serving as spacers having a predetermined width, and is fixed in this state by bolts 162. These nuts 161 are interposed between the inner frame portion 137 and the outer frame portion 138 in a state where they are screwed into the bolts 162 for fixing the inner frame portion 137.

As a result, in the lower frame 132D, the gap formed by the first parts 137a and 138a communicates with the gap formed by the second parts 137b and 138b at the lower end, and the gap formed by the second parts 137b and 138b opens inward in the depth direction.

As explained above, the vertical frame 131 and the horizontal frame 132 each open to the inside of the frame body 130. The outer edge portion of the shielding panel 140 is housed inside these vertical frame 131 and horizontal frame 132.

That is, in the upper frame 132U, the upper edge portion of the shielding panel 140 is accommodated between the first portion 135a of the inner frame portion 135 and the first portion 136a of the outer frame portion 136. Similarly, in the lower frame 132D, the lower edge portion of the shielding panel 140 is accommodated between the first portion 137a of the inner frame portion 137 and the first portion 138a of the outer frame portion 138. Similarly, in the right frame 131R, the right edge portion of the shielding panel 140 is accommodated between the first portion 133a of the inner frame portion 133 and the first portion 134a of the outer frame portion 134. Similarly, in the left frame 131L, the left edge portion of the shielding panel 140 is accommodated between the first portion 133a of the inner frame portion 133 and the first portion 134a of the outer frame portion 134.

Next, the shielding panel 140 will be described. As shown in FIG. 9, the outer panel 142 constituting the shielding panel 140 is composed of a single plate having a substantially square shape. The material of the outer panel 142 is arbitrary, but for example, it is composed of a thin metal plate. The outer panel 142 is fixed to the frame body 130 so as to cover the entire area surrounded by the frame body 130. In this case, as shown in FIG. 11, the outer edge portion of the outer panel 142 is accommodated inside the vertical frame 131 and the horizontal frame 132, respectively, and is fixed inside the first parts 133a, 136a, and 138a of the outer frame parts 134, 136, and 138. The outer edge portion of the outer panel 142 is fixed by any fixing method such as welding, screwing, or adhesive. In other words, the outer panel 142 is a fixed panel that does not move relative to the frame body 130.

Also, as shown in FIG. 9, the outer panel 142 is provided with a plurality of ventilation holes 142a, similar to the ventilation holes 42a in the first embodiment.

Next, the inner panel 141 constituting the shielding panel 140 will be described. As shown in FIG. 10, the inner panel 141 is composed of a single plate having a substantially square shape. The material of the inner panel 141 is arbitrary, but it is composed of a thin metal plate, for example.

The inner panel 141 is large enough to cover almost the entire area enclosed by the frame body 130. Specifically, the left-right dimension of the inner panel 141 is the same as the left-right dimension of the outer panel 142. When the inner panel 141 is attached to the frame body 130, as shown in FIG. 11(a), the left and right sides of the inner panel 141 are housed inside the right frame 131R and the left frame 131L, respectively, and the second portion 134b restricts movement in the left-right direction.

On the other hand, the vertical dimension of the inner panel 141 is slightly shorter than the vertical dimension of the outer panel 142. When the inner panel 141 is attached to the frame body 130, a gap is formed between the inner panel 141 and the second part 136b of the upper frame 132U or the second part 138b of the lower frame 132D in the vertical direction. For example, in FIG. 11(b), a gap is formed between the upper edge of the inner panel 141 and the second part 136b of the upper frame 132U.

The inner panel 141 is housed in the frame body 130 so as to be able to slide up and down relative to the frame body 130. In other words, the left and right sides of the inner panel 141 are housed inside the right frame 131R and the left frame 131L, respectively, but are not fixed to the right frame 131R and the left frame 131L so as to be able to slide up and down. Similarly, the upper and lower sides of the inner panel 141 are housed inside the upper frame 132U and the lower frame 132D, but are not fixed to the upper frame 132U and the lower frame 132D so as to be able to slide up and down.

The inner panel 141 is overlapped with the outer panel 142 so that a predetermined gap is formed between the inner panel 141 and the outer panel 142. In this embodiment, a plurality of protrusions 145 that protrude toward the outer panel 142 are provided on the surface of the inner panel 141 (the surface facing the outer panel 142), so that a predetermined gap is formed between the inner panel 141 and the outer panel 142. The plurality of protrusions 145 are arranged so as to be aligned linearly in the vertical direction at both the left and right ends of the inner panel 141, more specifically, at the locations that are disposed inside the vertical frame 131.

In addition, in the depth direction, the dimensions are set so that the sum of the thickness dimension of the outer panel 142, the thickness dimension of the inner panel 141, and the protruding dimension of the convex portion 145 is approximately the same as or slightly shorter than the gap dimension between the first portion 133a of the inner frame portion 133 and the first portion 134a of the outer frame portion 134.

As shown in FIG. 10, inside the soundproof panel 120, a lock mechanism 150 capable of restricting the sliding movement of the inner panel 141 is provided at the upper end. This lock mechanism 150 has a slide latch structure and is composed of a movable part 152 capable of sliding the bar 151 in the left-right direction, and a receiving metal fitting 153 into which the bar 151 of the movable part 152 is inserted. The movable part 152 is fixed to the right of the center of the upper frame 132U, while the receiving metal fitting 153 is fixed to the center of the upper end of the inner panel 141. In addition, in order to allow the receiving metal fitting 153 to move in the up-down direction, a cutout part 135c is provided in the first part 135a of the inner frame part 135 of the upper frame 132U so as to avoid the area where the receiving metal fitting 153 moves.

The inner panel 141 is provided with a plurality of ventilation holes 141a, similar to the ventilation holes 41a of the inner panel 41 of the first embodiment. As in the first embodiment, the shape, number, and arrangement of the ventilation holes 141a of the inner panel 141 are determined so as to match the ventilation holes 142a of the outer panel 142.

Here, the state of the soundproof panel 120 when it is opened and closed will be described. Figures 10 and 11 are views when the inner panel 141 is slid downward. As mentioned above, for convenience of illustration, the inner panel 141 is hatched in Figure 9, and the outer panel 142 is hatched in Figure 10. When the inner panel 141 is arranged downward, the ventilation holes 141a and 142a of the respective panels 141 and 142 are blocked. In other words, the ventilation hole 141a of the inner panel 141 is blocked by the outer panel 142, and the ventilation hole 42a of the outer panel 142 is blocked by the inner panel 141. In this embodiment, when the inner panel 141 is arranged downward, it corresponds to the inner panel 141 being arranged in the second position.

As shown in Figures 12 and 13, when the inner panel 141 is slid upward, the positions of the ventilation holes 142a of the outer panel 142 and the ventilation holes 141a of the inner panel 141 are approximately aligned. This allows the ventilation holes 142a of the outer panel 142 and the inner panel 141 to communicate with each other and penetrate the inside and outside of the shielding panel 140. In this embodiment, when the inner panel 141 is positioned upward, this corresponds to the inner panel 141 being positioned in the first position.

In this state, the locking mechanism 150 restricts the sliding movement of the inner panel 141. More specifically, the latch 151 of the movable part 152 provided on the upper frame 132U is slid left and right and inserted into the receiving metal fitting 153 provided on the inside of the inner panel 141, restricting the movement of the inner panel 141. As a result, the inner panel 141 is fixed at its upper end by the locking mechanism 150 so that it is suspended. It goes without saying that the locking mechanism 150 is released when the inner panel 141 is to be slid.

However, if the inner panel 141 and the outer panel 142 are kept in close contact as in the first embodiment, the frictional force may prevent the inner panel 141 from moving smoothly. Therefore, in the second embodiment, a convex portion 145 is formed so that a predetermined gap is formed between the inner panel 141 and the outer panel 142. This allows the inner panel 141 to slide smoothly.

However, with this configuration, there is a possibility that muddy water entering through the ventilation holes 141a, 142a will seep into the gap between the inner panel 141 and the outer panel 142. This muddy water will move downward between the inner panel 141 and the outer panel 142 and reach the lower frame 132D. If the lower frame 132D were to open only on the inside of the frame body 130, i.e., on the upper side, like the upper frame 132U, muddy water would accumulate in the lower frame 132D, making it difficult to open and close, and could cause rust, etc.

In the second embodiment, as shown in FIG. 11(b), the second part 137b of the inner frame part 137 is placed on the second part 138b of the outer frame part 138 in the lower frame 132D so as to leave a predetermined gap in the vertical direction, and the gap is used as a drainage channel 163. One side of the drainage channel 163 is connected to the lower end of the storage space of the shielding panel 140 surrounded by the first parts 137a and 138a in the lower frame 132D, and the other side opens inward in the depth direction. Therefore, muddy water that has infiltrated between the inner panel 141 and the outer panel 142 is transferred to the drainage channel 163 from the gap (storage space of the shielding panel 140) formed by the first parts 137a and 138a in the lower frame 132D, and is finally discharged to the inside of the soundproof panel 120 from the opening located on the inside.

The soundproof panel 120 of the second embodiment has the same effects as the first embodiment, as well as the following effects:

When the inner panel 141 slides up and down, there is a possibility that the inner panel 141 that is moved upward may move downward due to its own weight. Therefore, a locking mechanism 150 is provided to restrict the sliding movement. This makes it possible to prevent the inner panel 141 from moving due to its own weight and unintentionally closing the ventilation holes 141a, 142a.

The locking mechanism 150 is disposed above the shielding panel 140, and at the upper end of the inner panel 141, a bar 152 is inserted into a receiving metal fitting 153 to restrict sliding movement. This allows the inner panel 141 to be suspended by the bar 152 when the locking mechanism 150 restricts the movement of the inner panel 141. This makes it possible to stabilize the inner panel 141 compared to when the lower end is locked.

By making the inner panel 141 a sliding panel and locating the locking mechanism 150 on the inside, when placing the soundproof panel 120 in the upper part of a building (e.g., on the second floor or higher), the soundproof panel 120 can be opened and closed, and its sliding movement can be restricted and released from the inside. This improves safety and convenience.

When the inner panel 141 comes into close contact with the outer panel 142, the frictional force makes it difficult to slide the panel. Therefore, a protrusion 145 is provided between the inner panel 141 and the outer panel 142 so that a gap of a specified size or more is formed. This reduces the contact area between the inner panel 141 and the outer panel 142, and reduces the frictional force. This makes it easier to slide the panel.

If a gap is provided between the inner panel 141 and the outer panel 142, muddy water may get into the gap. This muddy water will flow through the gap and into the lower frame 132D that holds the lower end of the shielding panel 140. If muddy water accumulates in the lower frame 132D, it may cause rust and may make it difficult to slide. Therefore, a drainage channel 163 is provided to drain water that accumulates inside the lower frame 132D, and the muddy water inside the lower frame 132D is drained. This makes it possible to prevent water (including muddy water) from accumulating in the lower frame 132D.

In addition, this drainage channel 163 opens on the construction object side (inside) of the soundproofing panel 120, and does not open on the opposite side (outside). This allows water that accumulates inside the lower frame 132D to be drained toward the construction object side, and prevents muddy water from being discharged to the outside of the soundproofing panel 120. In other words, it is possible to prevent the appearance of the soundproofing panel 120 from being soiled on the outside.

In the lower frame 132D, the inner frame portion 137 and the outer frame portion 138 each have an L-shaped cross section, and have a first portion 137a, 138a that faces the lower end of the shielding panel 140 from the construction object side or the opposite side and covers the lower end, and a second portion 137b, 138b that is perpendicular to the first portion 137a, 138a. In the lower frame 132D, the second portion 137b of the inner frame portion 137 is placed on the second portion 138b of the outer frame portion 138 so that a predetermined gap is formed through a nut 161 as a spacer. The gap formed between the second portions 137b, 138b becomes the drainage channel 163. In other words, as shown in FIG. 10, etc., a gap is formed over the entire left-right direction, and this gap is the drainage channel 163. As a result, the opening portion of the drainage channel 163 becomes wider, making it easier to drain water.

(Modification of the second embodiment)
In the second embodiment, two or more soundproofing panels 120A, 120B may be connected in the left-right direction. For example, as shown in Fig. 14, a left frame 131L of one soundproofing panel 120A and a right frame 131R of the other soundproofing panel 120B may be fixed with bolts 201 or the like. This makes it possible to configure the soundproofing panels 120A, 120B in a horizontally elongated shape that is longer in the horizontal direction than in the vertical direction. Note that the soundproofing panels 120 may be connected in the vertical direction to configure a vertically elongated soundproofing panel 120.

- In the above embodiment, when a gap of a predetermined size or more is formed between the inner panel 141 and the outer panel 142, a protrusion 145 is provided on the inner panel 141, but a protrusion 145 may also be provided on the outer panel 142.

In addition, when a gap of a predetermined size or more is to be formed between the inner panel 141 and the outer panel 142, the gap may be formed by a method other than providing the protrusions 145. For example, as shown in FIG. 15(a), instead of the protrusions 145 aligned in the vertical direction, a slide rail 300 extending in the vertical direction may be provided. In FIG. 15(a), an inner rail 300a constituting the slide rail 300 is attached to the outer surface of the inner panel 141 (the surface facing the outer panel 142), and an outer rail 300b constituting the slide rail 300 is attached to the inner surface of the outer panel 142 (the surface facing the inner panel 141).

Also, for example, as shown in FIG. 15(b), a vertical groove 301 is formed in the vertical frame 131 in the second part 134b of the outer frame part 134 (the part corresponding to the bottom of the gap surrounded by the first parts 133a and 134a). Then, the left and right sides of the inner panel 141 (sliding panel) are inserted into the vertical groove 301 to hold it so that it can slide. By adjusting the position of the vertical groove 301 in the depth direction, a gap of a predetermined size or more may be formed between the inner panel 141 and the outer panel 142.

Although not shown, a slide rail extending in the vertical direction may be provided instead of the vertical groove 301. For example, an outer rail constituting the slide rail may be attached to the second part 134b of the outer frame part 134 (the part corresponding to the bottom of the gap surrounded by the first parts 133a and 134a), and inner rails constituting the slide rail may be attached to both the left and right sides of the inner panel 141.

Although not shown, the shape of the protrusions 145 may be changed as desired, and may be configured, for example, as a protrusion extending linearly in the vertical direction. A groove extending in the vertical direction may be formed in the portion facing the protrusions 145. The number and arrangement of the protrusions 145 may be changed as desired between the outer panel 142 and the inner panel 141, as long as they do not interfere with the sliding movement of the inner panel 141.

- In the second embodiment, as in the first embodiment, the inner panel 141 may be a fixed panel and the outer panel 142 may be a sliding panel. In this case, the inner panel 141 may be fixed to the first part 137a of the inner frame part 137 of the lower frame 132D. In this case, it is desirable to fix the lower end of the inner panel 141, which is the fixed panel, so that a predetermined gap is formed in the vertical direction from the second part 138b of the outer frame part 138 of the lower frame 132D. This allows the gap between the first parts 137a, 138a in the lower frame 132D to communicate with the drainage channel 163 without being obstructed by the fixed panel (inner panel 141) in this modified example.

- In the second embodiment described above, the locking mechanism 150 may be provided on the outside of the soundproof panel 120. The locking mechanism 150 may also be provided on the underside of the inner panel 141 (slide panel). The locking mechanism 150 may also be provided on the vertical frame 131. The configuration of the locking mechanism is not limited to a slide latch structure and may be changed as desired.

- In the second embodiment described above, the drainage channel 163 may open to the outside of the soundproof panel 120 and drain water to the outside. In addition, the lower frame 132D does not have to be configured by overlapping the L-shaped inner frame portion 137 and the outer frame portion 138, and the shape may be changed as desired. For example, as shown in FIG. 16, a U-shaped lower frame 401 may be used. When formed in a U-shape in this way, one or more through holes 403 that function as a drainage channel may be provided in the lower part of the side wall 402 formed in a U-shape.

20, 120...soundproof panel, 30, 130...frame body, 31, 131...vertical frame, 31D, 131D...lower frame, 31U, 131U...upper frame, 32, 132...horizontal frame, 32L, 132L...left frame, 32R, 132R...right frame, 33...inner side wall, 34...outer side wall, 35...bottom, 40, 140...shielding panel, 41, 141...inner panel, 41a, 1 41a...ventilation hole in inner panel, 42, 142...outer panel, 42a, 142a...ventilation hole in outer panel, 42b...handle, 133...inner frame part of horizontal frame, 134...outer frame part of horizontal frame, 135...inner frame part of upper frame, 136...outer frame part of upper frame, 137...inner frame part of lower frame, 138...outer frame part of lower frame, 150...locking mechanism, 161...nut, 163...drainage channel.

Claims (10)

A soundproof panel that covers the periphery of a construction object at a construction site,
A frame body having at least a vertical frame extending in the vertical direction;
a shielding panel that covers an area surrounded by the frame body,
The shielding panel is configured by stacking a plurality of panel bodies,
Each of the panel bodies is provided with a ventilation hole,
At least one of the plurality of panel bodies is a slide panel that is slidable in the up and down direction along the vertical frame,
When the slide panel is slid to a first position, the ventilation holes of the panel bodies overlap, whereas when the slide panel is slid to a second position different from the first position, the ventilation holes of the panel bodies are blocked by each other's panel bodies;
a lock mechanism that restricts the sliding movement of the slide panel when the slide panel is in an upper position;
The soundproof panel, wherein the locking mechanism is disposed at the center in the left-right direction perpendicular to the up-down direction which is the sliding direction. The soundproof panel according to claim 1, wherein the locking mechanism is disposed on the upper side of the shielding panel and is capable of restricting sliding movement at the upper end of the sliding panel. The soundproof panel according to claim 2, wherein the locking mechanism is provided on the side of the shielding panel facing the construction object. The plurality of panel bodies are configured by stacking the slide panel and a fixed panel fixed to the frame body,
The soundproof panel according to claim 1 , wherein a gap of a predetermined size or more is formed between the sliding panel and the fixed panel. The frame body has a lower frame into which a lower end of the shielding panel is inserted and which holds the lower end of the shielding panel,
The soundproof panel according to claim 4 , wherein the lower frame is formed with a drainage channel for draining water that accumulates within the lower frame. The soundproofing panel according to claim 5, wherein the drainage channel opens on the construction object side of the soundproofing panel. The lower frame has an inner frame portion arranged on the construction object side and an outer frame portion arranged on the opposite side to the construction object side,
The inner frame portion and the outer frame portion of the lower frame each have an L-shaped cross section, and each have a first portion that faces the lower end of the shielding panel from the construction object side or the opposite side and covers the lower end, and a second portion that is perpendicular to the first portion,
the second portion of the inner frame portion of the lower frame is placed on the second portion of the outer frame portion of the lower frame such that a predetermined gap is formed with a spacer therebetween;
The soundproof panel according to claim 5 , wherein a gap formed between the second portion of the inner frame portion of the lower frame and the second portion of the outer frame portion of the lower frame serves as the drainage channel. The shielding panel is configured by stacking an inner panel arranged on the construction object side and an outer panel arranged on the outside opposite to the construction object side,
The inner panel is a fixed panel fixed to the frame body,
The soundproof panel according to any one of claims 1 to 7, wherein the outer panel is a slide panel that is slidable in the up and down direction. A handle protruding from the construction object side surface of the outer panel is provided on the construction object side surface,
9. The soundproof panel according to claim 8, wherein the inner panel is provided with a slit that exposes the handle and allows the handle to move in the vertical direction. The soundproof panel according to any one of claims 1 to 7, wherein the first position is a position above the second position.

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