WO2023135831A1

WO2023135831A1 - Self-standing sound-proof panel

Info

Publication number: WO2023135831A1
Application number: PCT/JP2022/019546
Authority: WO
Inventors: 昭夫宮川
Original assignee: 有限会社幸昭
Priority date: 2022-01-17
Filing date: 2022-05-06
Publication date: 2023-07-20
Also published as: JP2023104275A; JP7208677B1

Abstract

The present invention combines acoustic panels into a sound-proof panel in a manner that can provide the sound-proof panel with a self-standing property and strength against wind pressure and the like without pillars. A panel body 3 is bent in an arc shape, and self-stands as an independent structure by receiving its own weight. A pipe 23 of a held part 21 of a self-standing sound-proof panel 1A on the right is held in a pipe 33 of a holding part 31 of a self-standing sound-proof panel 1A on the left, and a part of the arc of the pipe 23 is exposed through a slit 37 in the pipe 33, whereby the exposed portion can be linked to a section coupled to an angle member 25. Therefore, the self-standing sound-proof panels 1A, 1A, … can be aligned in the left-right direction. In addition, self-standing sound-proof panels 1A and 1B or self-standing sound-proof panels 1B and 1B can be coupled in the vertical direction via a relay member 45, and these self-standing sound-proof panels 1 cooperate with each other to self-stand more stably.

Description

Self-supporting acoustic panel

The present invention relates to a self-supporting soundproof panel that can be installed near a noise source to construct a soundproof wall that prevents noise from leaking out to the surroundings.

Along highways and construction sites, soundproof walls are installed to prevent noise from leaking out into the surroundings.
Such a soundproof wall is constructed by erecting a steel-framed pillar on a concrete foundation and attaching a soundproof panel to the pillar.

Japanese Patent Application Laid-Open No. 2021-161610

As mentioned above, when installing a soundproof wall, the pillars must be fixed first. there were.
However, as described in Patent Literature 1, the premise is still that the pillars are erected.

The present invention has been invented in view of such circumstances. It is an object of the present invention to provide a new and useful self-supporting acoustic panel that can provide the required strength without pillars.

The present invention has been made to achieve the above object, and the invention of claim 1 is a self-supporting soundproof panel having a panel body and connecting mechanisms on both sides in the left and right direction of the panel body, The panel main body is curved upward and has a concave curved surface on the noise source side. The self-supporting soundproof panel supports its own weight on the curved surface that forms the lower surface of the panel body and stands on its own, and is laterally The adjacent self-supporting soundproof panels are the self-supporting soundproof panels characterized in that they are connected by the holding portion being held by the holding portion.

The invention according to claim 2 is the self-supporting soundproof panel according to claim 1, wherein the upper and lower ends of the covered part and the holding part of the connection mechanism are open cylindrical parts, and the edges of the open cylindrical parts have concave surfaces. A pair of receiving portions are formed in the shape of a pair of receiving portions, and a separate relay member having a connection pin projecting outward in the middle in the longitudinal direction is provided. By inserting the relay member into each of the open cylinders separately on the upper and lower sides, and by projecting outward through the through-hole formed by the receiving portions facing each other in the vertical direction, the connection pin protrudes outward. The panel main body is characterized in that the self-supporting soundproof panel is connected in a state in which the curved surfaces are in contact with each other.

The invention according to claim 3 is the self-supporting soundproof panel according to claim 2, wherein the wrapped part of the connecting mechanism is made of a pipe, and the holding part is made of a vertically extending pipe with a slit, The self-supporting soundproof panel is characterized in that the end edge of the pipe is notched to form a receiving portion.

The invention of claim 4 is the self-supporting soundproof panel according to any one of claims 1 to 3, wherein the panel main body and the lower surface of the connection mechanism are fixed and integrated to the base plate, and the base plate has insertion holes for anchor bolts. is formed, and is characterized by being used as the lowest self-supporting soundproof panel fixed to a concrete foundation.

By combining and connecting the self-supporting soundproof panels of the present invention, it is possible to construct a soundproof wall with the same self-supporting strength as before and the strength to withstand wind pressure, etc., even without pillars.

FIG. 3 is an explanatory diagram of a method of installing a self-supporting soundproof panel that utilizes the structure of the self-supporting soundproof panel according to the embodiment of the present invention; FIG. 2 is a front view and cross-sectional view of the single self-supporting soundproof panel of FIG. 1 when facing the noise source side; FIG. 2 is an explanatory diagram of an installation method when the self-supporting soundproof panels are arranged side by side in the left-right direction following FIG. 1 ; FIG. 4 is an explanatory diagram of an installation method when the self-supporting soundproof panels are arranged side by side in the left-right direction following FIG. 3 ; FIG. 5 is a front view and a cross-sectional view when facing the noise source side of the two self-supporting soundproof panels in FIG. 4 arranged side by side and installed. FIG. 4 is an explanatory diagram of an installation method when the self-supporting soundproof panels are arranged vertically and installed following FIG. 4 ; FIG. 7 is a top view of a connection pin member used when vertically arranging the self-supporting soundproof panels and side views in two directions perpendicular to each other. FIG. 7 is an explanatory diagram of an installation method when the self-supporting soundproof panels are arranged in the vertical direction following FIG. 6 ; 3 is an explanatory diagram of another configuration example of the panel main body of the self-supporting soundproof panel of FIG. 2. FIG.

A self-supporting soundproof panel 1 according to an embodiment of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1, 3, 4, 6, and 8, a plurality of self-supporting soundproof panels 1 are connected in horizontal and vertical directions, and substantially have the optimum vertical and horizontal sizes corresponding to the noise generating environment. can be expanded to
The single self-supporting soundproof panel 1 is divided into a type 1A with a base plate 39 fixed by welding and a type 1B without the base plate 39, the former type being directly fixed to the concrete foundation C for the lowest stage. It has become.
The self-supporting

soundproof panels

1A and 1B have the same configuration except for the presence or absence of the base plate 39, and common reference numerals are used to indicate the configuration in the drawings and the following description.

As shown in FIG. 1, the self-supporting soundproof panel 1A includes a panel body 3 and a connecting mechanism 19. As shown in FIG.
The panel main body 3 has a flat rectangular box-shaped housing 5 made of a metal plate, and is installed in a standing state with the flat surface facing the lateral direction. The panel main body 3 is curved in a substantially arcuate shape when viewed from above. A concave curved surface portion 7 is located on the noise source side, a convex curved surface portion 9 is located on the opposite side, and left and right

end surface portions

11, 11 and upper and lower

end surface portions

13, 13 are formed between them.

As shown in FIG. 2, the concave surface portion 7 is composed of a porous and rigid aluminum sound absorbing plate or aluminum punching metal, and allows noise to directly pass through the opening. The left and right

end face portions

11, 11 are formed by bending the left and right sides of the concave surface portion 7. As shown in FIG. The convex curved surface portion 9 is composed of a square corrugated plate, and functions as a sound insulation and an exterior plate. The upper and lower

end face portions

13, 13 are made of end boards.

The interior of the housing 5 is filled with polyester wool as a sound absorbing material 15 . Also,

sound pads

17, 17, 17 are arranged at intervals.
The noise transmitted through the concave curved surface portion 7 is attenuated by the sound absorbing material 15 by diffused reflection, or the sound pad 17 reduces the vibration, thereby absorbing the sound.
At the position where the sound pad 17 is inserted, the concave curved surface portion 7 and the convex curved surface portion 9 are fastened with the sound pad 17 interposed therebetween using blind rivets (not shown), thereby retaining the shape of the housing 5 .

A covered portion 21 and a holding portion 31 are attached as connecting mechanisms 19 on both sides of the panel body 3 in the left-right direction.
The wrapped portion 21 is constructed using a cylindrical pipe 23, and the longitudinal edge of an angle member 25 is welded and fixed to the outer peripheral surface of the pipe 23 in parallel with the axial direction. ing. The concave inner surface side of the angle member 25 is overlaid on the corner of the concave curved surface portion 7 and the left end surface portion 11 from the outside, and the angle member 25 is fastened to the concave curved surface portion 7 with a blind rivet (not shown).

The pipe 23 extends outward in the left direction from the corner of the convex curved surface portion 9 and the left end surface portion 11 of the panel main body 3, and the corner portion of the convex curved surface portion 9 and the left end surface portion 11 of the panel main body 3 is curved. Since it is positioned leftwardly outward from the corner of the concave curved surface portion 7 and the left end surface portion 11, the peripheral surface of the pipe 23 is fixed to the leftward protruding end.
The

vertical edges

27, 27 of the pipe 23 are substantially aligned with the upper and

lower end faces

13, 13 of the housing 5, respectively.

A concave curved groove 29 is formed in each of the

end edges

27, 27 of the pipe 23 by shallowly cutting out in a semicircular shape as a receiving portion. A pair of concave

curved grooves

29 , 29 are formed in the upper edge 27 so as to face each other in the radial direction. The concave curved groove 29 is positioned on a line L2 parallel to the center line L1 passing through the center of the panel body 3 in the left-right direction. A pair of concave

curved edges

29, 29 are similarly formed on the lower edge 27 as well.

The holding portion 31 is configured using a cylindrical pipe 33 . The inner diameter of the pipe 33 is larger than the outer diameter of the pipe 23, and the pipe 23 can be nested in the pipe 33. The angle member 25 is also attached to the outer peripheral surface of the pipe 33 in parallel with the axial direction. The edges in the longitudinal direction are fixed by welding and integrated, and extend outward in the right direction from the corners of the convex curved surface portion 9 and the right end surface portion 11 of the panel body 3 so as to be symmetrical with the pipe 23 in the left-right direction. The

vertical edges

35, 35 are substantially aligned with the upper and

lower end faces

13, 13 of the housing 5, respectively.

The

edges

35, 35 of the pipe 33 are also formed with recessed curved edges 29 in the same manner as the pipe 23. As shown in FIG.
Further, the pipe 33 has a slit 37 extending vertically through the pipe wall thickness portion, and the slit 37 is open at the upper and

lower edges

35 , 35 . The length of the slit 37 in the circumferential direction is about 1/4 of an arc, and when the edge 35 is viewed from above, the widthwise center of the slit 37 is slightly to the upper right of the vertical center line of the pipe 33 . .

As described above, the self-supporting soundproof panel 1A is for the lowest stage fixed to the concrete foundation C, and the base plate 39 is fixed. The base plate 39 has a rectangular shape elongated in the left-right direction, and the panel main body 3 and the connecting mechanism 19 stand on its upper surface, and the lower end surface portion 13 of the panel main body 3 is fixed and integrated by welding.

The panel main body 3 is curved in an arc shape, and the most protruding portion of the lower end surface portion 13 is positioned near the middle in the left-right direction of one long side edge 39a of the base plate 39, and both ends of the lower end surface portion 13 in the left-right direction are located in the vicinity of both left and right ends of the other long side edge 39a. Since the panel body 3 stands on the base plate 39 in a state of being spread out in the vertical and horizontal directions, it receives its own weight and stands on its own as a single unit. In addition, since the length of the panel body 3 in the left-right direction is increased by the amount of curvature, the strength is also increased.

The independent

soundproof panels

1A, 1A can be installed side by side in the left-right direction. The

base plates

39, 39 of the self-supporting

soundproof panels

1A, 1A adjacent in the left-right direction are butted against each other with the right short side edge 39b of the base plate 39 on the left side and the left short side edge 39b of the base plate 39 on the right side. , the

long side edges

39a, 39a on the noise source side and the opposite side are aligned so as to be flush with each other.
In the aligned state, the positional relationship is such that the pipe 33 of the holding portion 31 of the self-supporting soundproof panel 1A on the left side and the pipe 23 of the held portion 21 on the right side are coaxially accommodated. Moreover, since a part of the circular arc of the pipe 23 is exposed through the slit 37 of the pipe 33 , the exposed part can be connected to the connecting portion with the angle member 25 .

Therefore, the independent

soundproof panels

1A, 1A, . . . can be arranged side by side in the left-right direction. ,……make. Anchor bolts B, B, . A total of six bolt insertion holes 41 are formed in two locations, so that when the base plate 39 is lowered on the upper surface of the concrete foundation C with the respective edges aligned, the anchor bolts B, B, . . . , through the bolt insertion holes 41, 41, . . . As shown in FIG. 3, the self-supporting soundproof panel 1A is fixed on the concrete foundation C by tightening the through screw shaft with a nut 43. As shown in FIG.

After installing the leftmost self-supporting soundproof panel 1A as described above, as shown in FIG. After putting it down and placing it on the concrete foundation C, it is fixed to the concrete foundation C using nuts 43 as shown in FIG. The pipe 23 of the holding portion 21 is held by the pipe 33 of the holding portion 31, and as shown in FIG. 5, the independent

soundproof panels

1A, 1A, . .
By being connected in the left-right direction, the adjacent self-supporting soundproof panels 1A cooperate with each other and more stably stand on their own.

Furthermore, the self-supporting soundproof panels 1 can be installed side by side not only in the lateral direction but also in the upward direction. When arranging them upward, a self-supporting soundproof panel 1B is used. As described above, this self-supporting soundproof panel 1B has the same configuration as the self-supporting soundproof panel 1A, except for the presence or absence of the base plate 39. As shown in FIG. A relay member 45 is also used.
As shown in detail in FIG. 7, the relay member 45 has a pair of through holes formed in the middle of the elongated cylindrical shaft 47 in the axial direction. has been made Accordingly, both axial ends of the connecting pin 49 protrude outwardly from the cylindrical shaft 47 . A cross section perpendicular to the axial direction of the connection pin 49 is circular.

As shown by the arrow in FIG. 6, when the relay member 45 is inserted from above into the double tube formed by the

pipes

23 and 33 on the left side of the self-supporting soundproof panel 1A, a connection extending perpendicular to the cylindrical shaft 47 is made. The pin 45 is caught by the

edges

27 and 35 and the bottom half of the pipe 23 is inserted inside. Since the concave curved groove 29 on the pipe 23 side and the concave curved groove 29 on the pipe 33 side are aligned in the radial direction, both ends of the connecting pin 49 are inserted into the concave

curved grooves

29, 29, 29, 29 by turning in the circumferential direction. Then, the upper semi-circular portion protrudes outward from the edge 27 of the pipe 23 through the edge 35 of the pipe 33 further outside. Also on the right side, if the relay member 45 is similarly inserted into the pipe 33 from above, the connection pin 49 will protrude outward.

After that, when the independent soundproof panel 1B is lowered from above to the independent soundproof panel 1A so that the

respective pipes

23 and 33 are coaxially connected in the vertical direction, as shown by the arrow, the upper surface of the cylindrical shaft 47 is lowered. About half of them are inserted into the

pipes

23, 31 which are on the upper side.
The curved grooves 29 of the

upper pipes

23 and 33 and the curved grooves 29 of the

lower pipes

23 and 33 face each other vertically to form a circular through hole 51 through which the connecting pin 49 passes. , the end edge 27 of the pipe 23 on the upper side and the end edge 27 of the pipe 23 on the lower side are in full contact, and the

pipes

33, 33 are also in full contact.

Therefore, as shown in FIG. 8, the lower end face portion 13 of the self-supporting soundproof panel 1B completely overlaps and abuts against the upper end face portion 13 of the self-supporting soundproof panel 1A. 1B is stable and independent. Also, the self-supporting soundproof panel 1B can be arranged in the horizontal direction in the same manner as the self-supporting soundproof panel 1A.
This self-supporting soundproof panel 1B is also connected in the left-right direction, so that the adjacent self-supporting soundproof panels 1B cooperate with each other to more stably stand on their own.

As described above, by combining and connecting the self-supporting

soundproof panels

1A and 1B, a soundproof wall can be constructed without pillar construction. This soundproof wall has the same self-standing and strength to withstand wind pressure, etc., as before, even without pillars.
In addition, since the panel body 3 has a curved surface and the incident angle of sound changes when incident on the panel body 3, the sound absorbing effect is increased.

Although preferred embodiments of the present invention have been described above, the present invention is not limited to such specific embodiments, and various modifications and changes are possible.
For example, there are various types of panel body 3 such as vibration type and resonance type, and it is possible to substitute other types.
In the panel body 53 shown in FIG. 9, the concave curved surface portion 7 is composed of a curved hard sound absorbing sheet such as a felt board, the convex curved surface portion 9 is composed of a curved sound insulating plate that also serves as an exterior, and the sound absorbing material 15 is made of a polyester rule or the like. It is made of soft sound absorbing material or aluminum sound absorbing material such as sintered aluminum sound absorbing plate.
When the incident sound is incident on the curved hard sound absorbing sheet, the incident angle of the sound changes. Most of the sound transmitted through the curved hard sound absorbing sheet hits the outer curved sound insulating plate and is reflected efficiently in the soft sound absorbing material. Therefore, the sound absorbing effect is remarkably increased, and the sound passing through the outer curved sound insulating plate is attenuated, so that the reduced volume is amplified.

DESCRIPTION OF

SYMBOLS

1A, 1B... Self-supporting soundproof panel 3... Panel main body 5... Case 7... Concave curved surface part 9... Convex curved surface part 11... Right-and-left end surface part 13... Upper-and-lower-end surface part 15... Sound-absorbing material 17... Sound pad 19... Connection mechanism 21... Part to be held 23 Pipe 25 Angle material 27 Edge 29 Concave groove 31 Holding part 33 Pipe 35 Edge 37 Slit 39 Base plate

39a Long edge

39b Short edge 41 Bolt insertion hole 43... Nut 45... Relay member 47... Cylindrical shaft 49... Connection pin 51... Through hole 53... Panel body L1... Center line L2... Parallel line C... Concrete foundation B... Anchor bolt

Claims

A self-supporting soundproof panel having a panel body and a connection mechanism on both sides in the left and right direction of the panel body,
The panel body is curved upward and has a concave curved surface on the noise source side,
The connecting mechanism includes a holding portion provided on one side in the left-right direction and extending outward, and a holding portion provided on the other side and extending outward to hold the held portion. and
The self-supporting soundproof panel stands on its own by receiving its own weight on a curved surface forming the lower surface of the panel body,
A self-supporting soundproof panel, wherein the self-supporting soundproof panels adjacent to each other in the left-right direction are connected by the holding portion being held by the holding portion.
In the self-supporting soundproof panel according to claim 1,
The upper and lower ends of the covered portion and the holding portion of the connecting mechanism are open cylinders, and a pair of concave receiving portions are formed on the edges of the open cylinders. A relay member having a connection pin projecting toward the side is provided as a separate body,
In the vertically adjacent self-supporting soundproof panels, the relay member is inserted vertically into each open cylindrical portion, and the receiving portions are vertically opposed to each other and pass through through-holes. A panel main body, wherein the connecting pin protrudes outward, whereby the curved surfaces of the self-supporting soundproof panel are connected while being in contact with each other.
In the self-supporting soundproof panel according to claim 2,
The holding part of the connecting mechanism is composed of a pipe, the holding part is composed of a vertically extending pipe with a slit, and the receiving part is formed by notching the end edge of the pipe. A self-supporting soundproof panel.
In the self-supporting soundproof panel according to any one of claims 1 to 3,
The panel main body and the lower surface of the connection mechanism are fixed and integrated to the base plate, and the base plate is formed with insertion holes for anchor bolts,
A self-supporting soundproof panel characterized by being used as a lowermost self-supporting soundproof panel fixed to a concrete foundation.