JP6375339B2 - Sound absorbing panel and soundproofing equipment - Google Patents

Description

  The present invention provides a soundproof wall in which a soundproof panel is installed along the vertical direction, and is disposed further above the uppermost portion of the soundproof panel, forming a sound absorbing space with a sound absorbing material therein, and a sound source. An outer frame body that can form a partition wall separating the periphery of the sound source is provided, and a sound transmitting surface that allows sound to enter and exit from the sound absorbing space and the outside thereof, a sound source side surface portion of the outer frame body, and The present invention relates to a sound absorbing panel formed on a back surface portion and a ceiling portion, and a soundproofing equipment provided with the sound absorbing panel.

  Conventionally, the sound absorption panel has a large sound pressure difference between the sound source side and the back side of the sound insulation panels arranged in the vertical direction, and the energy of the sound accelerated in the region near the upper edge of the sound insulation wall equipment causes a diffraction phenomenon. Further, the problem that the diffracted sound spreads in a space to suppress noise on the back side of the soundproof wall equipment, the problem that the diffracted sound spreads in a plurality of stages in the vertical direction, further above the topmost one of the soundproof panels, A sound absorbing panel can be arranged to reduce the diffracted sound that tends to diffract near the upper edge of the uppermost one of the soundproof panels arranged in a plurality of stages in the vertical direction (edge effect suppression). In the sound absorbing panel, in order to constitute the outer frame body, a punching metal that covers the sound source side surface portion, the back surface portion, and the ceiling portion of the sound absorbing material from the outside is provided, and the punching metal is provided as one of the main frame bodies. As part To the punching metal and the metal of the bottom plate member and the side plates member, coupled integrally assembled, there is what is formed into a box shape for accommodating the sound absorbing material (e.g., see Patent Document 1).

JP 2014-101747 A

  The conventional sound absorbing panel described above is repeatedly installed at different construction sites, for example, when attached to a temporary soundproof wall at a construction site or the like, and may be damaged due to contact with other objects during transportation or installation. In some cases, the appearance of the sound absorbing panel deteriorated.

  Accordingly, an object of the present invention is to solve the above-mentioned problems and make it easy to use repeatedly by simple repair even if the appearance of the sound absorbing panel is damaged.

  The characteristic structure of the first sound absorbing panel according to the present invention is that the sound absorbing wall in which the sound insulating panel is installed along the vertical direction is disposed above the uppermost portion of the sound insulating panel and includes a sound absorbing material. And a sound transmitting surface that allows sound to enter and exit the sound absorbing space and the outside thereof is provided, and an outer frame body that can form a partition wall that separates the sound source and the periphery of the sound source is provided. A sound-absorbing panel formed on the sound source side surface portion, the back surface portion, and the ceiling portion of the frame body, and the sound on the sound source side, the back surface side, and the ceiling side with respect to the sound absorbing material to constitute the outer frame body A porous body that covers the sound absorber side surface portion, the back surface portion, and the ceiling portion of the sound absorbing material from outside while providing a main frame body that surrounds the bottom, left and right sides, and the ceiling portion of the sound absorbing material without impeding the transmission function. A plate-like body is provided, and the sound absorbing material is disposed on the main frame body. In support state, there the perforated plate body was provided with a pinching fixing member for fixing detachably sandwiched with respect to the main frame.

  According to the first characteristic configuration of the present invention, since the porous plate-like body is detachably sandwiched and fixed by the sandwiching and fixing member with respect to the main frame, the sound absorbing panel is repeatedly installed and removed. Even if the surface is damaged by contact with another object, it can be easily removed from the pinching and fixing member and replaced with a new porous plate-like body, and can be used repeatedly in a short time.

  A second characteristic configuration of the present invention is a sound leakage capable of closing a gap between a lower end edge of the outer frame body and an upper end edge of the soundproof panel when disposed further above the uppermost portion of the soundproof panel. A prevention member is provided at the lower edge of the outer frame.

  According to the second characteristic configuration of the present invention, in addition to being able to achieve the above-described operation and effect of the first characteristic configuration of the present invention, the sound absorbing panel is disposed further above the uppermost portion of the soundproof panel. The sound leakage prevention member can prevent sound leaking through the gap between the lower edge of the outer frame and the upper edge of the soundproof panel.

  The third characteristic configuration of the present invention resides in that the porous plate-like body is formed of a flexible porous sheet made of a synthetic resin.

  According to the third characteristic configuration of the present invention, in the sound absorbing panel that is repeatedly attached to and detached from the soundproof wall, the porous plate-like body formed of the porous sheet is also brought into contact with another object during transportation or installation. Due to the flexibility and elasticity of the metal plate, it is possible to reduce the problem of releasing external force and plastically deforming like a metal plate to lower the external fit, and as a result, it becomes easy to use repeatedly.

  According to a fourth characteristic configuration of the present invention, on each of the left and right side frame portions of the main frame body, a locking connection portion of a fixture with respect to the panel support body is continuously provided along the vertical direction. The upper limit of the fixture locking position is set lower than the upper end edge of the ceiling frame portion of the main frame.

  According to the fourth characteristic configuration of the present invention, for example, when attaching a sound absorbing panel to a temporary soundproof wall such as a construction site, generally, a plurality of soundproof panels are installed vertically along the vertical direction. It is attached to a panel support consisting of a combination of a support such as a single pipe and a cross rail made up of a horizontal single pipe installed in the horizontal direction across a plurality of support pillars. The sound absorbing panel can be installed via the fixing tool, and when the fixing tool is locked to the locking connecting portions provided on the left and right side frame parts of the main frame body of the sound absorbing panel, the locking position is the main position. Since it is lower than the upper edge of the ceiling frame part in the frame, the sound transmission function of the upper edge part of the sound absorbing panel is not blocked. Reduces diffracted sound to be diffracted The function of the sound-absorbing panel which can be maintained.

  According to the fifth feature of the soundproofing equipment of the present invention, there is provided a panel support body comprising a plurality of columns that are erected at predetermined intervals in the lateral direction and a horizontal beam that is connected across the plurality of columns. In the soundproof wall provided with the soundproof panel attached to the panel support, a horizontal beam is connected across the extending portions of the plurality of support columns protruding upward from the uppermost part of the soundproof panel, A fixing tool for fixing the sound absorbing panel is locked to the locking connecting portion of the sound absorbing panel according to claim 4 and the sound absorbing panel is attached.

  According to the fifth characteristic configuration of the present invention, the soundproofing equipment in which the sound absorbing panel is attached to the panel support body composed of the support column and the horizontal rail via the fixture can be easily installed and removed at the construction site. It becomes easy.

It is a whole perspective view of the installation construction state of the soundproofing equipment. It is a side view of the attachment state of soundproofing equipment. It is a whole perspective view of a sound absorption panel. It is a front view of a sound absorption panel. It is a rear view of a sound absorption panel. It is a vertical side view of a sound absorption panel. It is a disassembled side view of a sound absorption panel. It is a principal part top view which shows the attachment state of a sound absorption panel. It is a disassembled perspective view of a sound absorption panel.

Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 and 2, a temporary soundproof wall such as a construction site generally has a plurality of soundproof panels 1 provided with a plurality of soundproof panels 1 installed vertically along a vertical single pipe and the like. It is attached to a panel support body 4 which is a combination of a connection with a horizontal beam 3 consisting of a single horizontal tube that is installed in a horizontal direction across the columns 2 and constitutes a soundproofing equipment.
A sound absorbing panel 5 for reducing the diffracted sound that tends to diffract near the upper edge of the soundproof panel 1 is mounted on the uppermost part of the plurality of soundproof panels 1 constituting the soundproof wall.

As shown in FIGS. 3 to 9, the sound absorbing panel 5 includes a sound absorbing space 8 in which a sound absorbing material 6 is housed, and an outer frame body 7 that can freely form a partition that separates the sound source from the periphery of the sound source. And a sound transmitting surface 9 that allows sound to enter and exit from the sound absorbing space 8 and the outside thereof is formed on the sound source side surface portion, the back surface portion, and the ceiling portion of the outer frame body 7.
Although constituting the outer frame body 7, a main frame that surrounds the bottom, left and right sides, and the ceiling with respect to the sound absorbing material 6 without impairing the sound transmission function on the sound source side, the back surface, and the ceiling side with respect to the sound absorbing material 6. In addition to providing the body 10, a porous plate-like body 11 that covers the sound source-side surface portion, the back surface portion, and the ceiling portion of the sound-absorbing material 6 from the outside is provided, and the sound-absorbing material 6 is supported by the main frame body 10. A sandwiching fixing member 12 that sandwiches and fixes the body 11 with respect to the main frame body 10 is provided.
The porous plate-like body 11 is formed of a flexible synthetic resin porous sheet, and the peripheral portions thereof are made of metal left and right side frame portions 13 and bottom frame portions 14 constituting the main frame body 10. A ceiling frame portion 15 made of a punching metal is integrally formed with a connecting member such as a rivet or a bolt and nut, and is formed of a band-shaped metal plate with respect to attachment portions formed on the main frame body 10 respectively. It is sandwiched between the second and third sandwiching fixing members 12A, 12B, and 12C, and is detachably fixed via bolts and nuts.

  The sound absorbing material 6 is formed so that the flow resistance value becomes smaller toward the upper end side, that is, the flow resistance value of air is made to change continuously in the vertical direction with polyester fibers, thereby the edge effect. The suppression effect is obtained.

  As shown in FIGS. 6, 7, and 9, the left and right side frame portions 13 of the main frame body 10 are each provided with a locking connection portion 17 of the fixture 16 for the panel support 4 along the vertical direction. Thus, the upper limit 17A of the fixture locking portion 17 is set lower than the upper edge of the outer frame 7.

  The sound absorbing panel 5 is made of rubber such as CR rubber that can close the gap between the lower end edge of the outer frame 7 and the upper end edge of the soundproof panel 1 when disposed above the top of the soundproof panel 1. A sound leakage prevention member 18 made of a flexible sheet made of resin or resin is provided at the lower edge of the outer frame body 7 (FIGS. 2, 6, and 7).

  As shown in FIGS. 1, 2, and 8, when the sound absorbing panel 5 is attached to the panel support 4 to configure the soundproofing equipment, a plurality of columns 2 projecting upward from the top of the soundproofing panel 1. A fixing tool 16 that connects the horizontal beam 3 and extends to the extending portion is fixed to the locking connection part 17 of the sound absorbing panel 5 and attached.

[Another embodiment]
Other embodiments will be described below.

<1> The sound-absorbing panel 5 is a panel support that is erected at regular intervals along the road so as to separate the road and its periphery on the side of the road, in addition to the sound-absorbing panel 5 that is attached to the temporary soundproof wall at the construction site. In the vertical groove of the H-shaped steel for use, the soundproof panels may be arranged on the uppermost stage of the soundproof panel arranged side by side along the road in a state where the soundproof panels are stacked in a plurality of stages in the vertical direction. The soundproof wall may be used not only for roads but also for railways, general soundproof wall equipment, and indoor partitions.
<2> The sound-absorbing material 6 is composed of an aluminum sintered plate in addition to a porous body made of inorganic fibers such as glass wool and rock wool, and a porous body made of metal fibers such as stainless steel fibers, in addition to polyester wool. It may be.
<3> The porous plate-like body 11 may be made of a metal porous thin plate or a laminate of a metal thin plate and a synthetic resin sheet in addition to the synthetic resin.
<4> The sound leakage prevention member 18 may be made of a metal thin plate, a folded plate, or wood, in addition to a flexible sheet of rubber or resin.

  In addition, as mentioned above, although the code | symbol was written in order to make contrast with drawing convenient, this invention is not limited to the structure of an accompanying drawing by this entry. In addition, it goes without saying that the present invention can be carried out in various modes without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 Soundproof panel 2 Support | pillar 3 Horizontal beam 4 Panel support body 5 Sound absorption panel 6 Sound absorption material 7 Outer frame body 8 Sound absorption space 9 Sound transmission surface 10 Main frame body 11 Porous plate-shaped body 12 Clamping fixing member 13 Side frame part 14 Bottom frame part DESCRIPTION OF SYMBOLS 15 Ceiling frame part 16 Fixing tool 17 Locking connection part 18 Sound leak prevention member

Claims (5)

In the soundproof wall where the soundproof panel is installed along the vertical direction,
Disposed above the top of the soundproof panel;
A sound-absorbing space with a sound-absorbing material is formed inside, and an outer frame that can form a partition that separates the sound source from the sound source is provided.
A sound-absorbing panel formed on the sound source side surface portion, the back surface portion, and the ceiling portion of the outer frame body, with a sound transmitting surface that allows sound to enter and leave the sound absorbing space and the outside thereof,
To configure the outer frame,
While providing a sound source side, back side, and ceiling side sound transmission function for the sound absorbing material, and providing a main frame body that surrounds the bottom, left and right sides, and the ceiling portion for the sound absorbing material,
Provide a porous plate-like body that covers the sound source side surface portion, the back surface portion, and the ceiling portion of the sound absorbing material from the outside,
With the sound absorbing material supported by the main frame,
A sound-absorbing panel provided with a pinching fixing member for pinching the porous plate-like body with respect to the main frame body and detachably fixing the porous plate-like body.   A sound leakage preventing member capable of closing a gap between a lower end edge of the outer frame body and an upper end edge of the soundproof panel when disposed further above the uppermost portion of the soundproof panel, the lower end of the outer frame body The sound absorbing panel according to claim 1, wherein the sound absorbing panel is provided at an edge.   The sound absorbing panel according to claim 1 or 2, wherein the porous plate-like body is formed of a flexible porous sheet made of a synthetic resin. In each of the left and right side frame portions in the main frame body, a locking connection portion of a fixing tool for the panel support body is continuously provided along the vertical direction,
The sound-absorbing panel according to any one of claims 1 to 3, wherein an upper limit of locking of the fixture in the locking connection portion is set lower than an upper end edge of the ceiling frame portion in the main frame body. A panel support is provided that includes a plurality of support columns that are erected at predetermined intervals in the lateral direction, and a horizontal rail that is connected across the plurality of support columns.
In the soundproof wall where the soundproof panel is attached to the panel support,
A horizontal rail is connected across the extending portions of the plurality of pillars protruding upward from the top of the soundproof panel,
The soundproofing equipment which has fixed the fixing tool fixed to the said horizontal rail to the latching connection part of the sound-absorbing panel of Claim 4, and has attached the said sound-absorbing panel.

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