JP2001228880A - Multilayered soundproof panel and respective layer connecting structures for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent degradation in sound insulation performance by the resonance transmission in low-frequency sound and the coincidence effect in high-frequency sound and to obtain the sound insulation performance stable from the bass to the treble. SOLUTION: The multilayered acoustical panel 10 is constituted by having a primary sound insulation panel arranged on the length side in Figure 1, a secondary sound insulation panel 13 arranged on the same near side of this primary sound insulation panel 12, a ternary sound insulation panel 14 arranged on the same near side of this secondary sound insulation panel 13, a first fastener bar 16 interposed between the primary and secondary sound insulation panels 12 and 13 and a second fastener bar 17 which is interposed between the secondary and ternary sound insulation panels 13 and 14. The secondary and ternary sound insulation panels 13 and 14 are scattered and arranged with hook-and-loop fasteners 49 and 59 and on the other hand, the first and second fastener bars 16 and 17 are arranged with hook-and-loop fasteners 63 and 69 at prescribed intervals. The respective sound insulation panels are connected in the state of permitting the relative movements of the respective sound insulation panels by the engagement of the respective hook-and-loop fasteners.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-layer soundproof panel used in a listening room of a building and the like, and more particularly to a multi-layer soundproof panel which exhibits stable sound insulation performance from a low range to a high range. The present invention relates to a soundproof panel and a layer connection structure thereof.

[0002]

2. Description of the Related Art Conventionally, a structure as shown in FIG. 15A has been known as a partition wall of a building. The structure shown in FIG. 15A is generally applied to a wooden house or the like, and is provided between two panel members P and P made of a gypsum board or the like, and a stud S that comes into contact with the inner surfaces of both of them.
Is appropriately interposed. However, in this structure, each stud S comes into contact with the inner surface of each of the panel members P, P, and the vibration of one panel member P is transmitted to the other panel member P as it is as a solid vibration. The effect cannot be expected so much, and it cannot be applied to the wall of a listening room of a building where high sound insulation performance is required.

A partition wall used in a listening room of a building, for example, is shown in FIG.
As shown in (C), a structure having a higher sound insulation effect than the structure of FIG. That is, FIG.
In the structure (B), a zigzag stud Z arranged in a staggered manner is provided between two panel materials P, P made of a gypsum board or the like, and a rock wool R is interposed between the zigzag studs Z. It has become so. Further, the structure of FIG. 15 (C) has a structure in which a two-layered panel material P made of a gypsum board or the like is provided.
Rock wool R is interposed and each panel material P,
The inner surfaces of P are connected by a metal fitting F having a Z shape in side view.

[0004]

However, in the structure of FIG. 15B described above, one staggered stud Z contacts only one inner surface of each of the panel members P, P. Although there is hardly any solid contact at the center in the vertical direction between the panel materials P, P, since the upper and lower ends of the panel materials P, P are connected by a ceiling and a floor (not shown), Cause inconvenience. That is,
As shown in FIG. 16, in a low sound range of 250 Hz or less, the drop in transmission loss due to resonance transmission in which the panel materials P and P and the air layer therebetween resonate cannot be reduced so much, and the sound insulation performance deteriorates. There is a disadvantage of doing so. In this case, if the separation distance between the panel materials P, P is 1 m or more,
Although the occurrence of resonance transmission can be suppressed, the entire partition wall becomes thick and the dead space increases, which causes another disadvantage that the indoor space is narrowed. On the other hand, 2 kHz
In the treble range of z to 4 kHz, a bending wave is generated due to the restraint of the vibration of the panels P, P, and the distribution loss of the bending vibration of the bending wave coincides with the distribution of the dense and dense vibration of the incident wave. That is, a coincidence effect occurs. For this reason, there is an inconvenience of giving an auditory discomfort when the frequency drops in the high-pitched sound region.

In the structure shown in FIG. 15C, a metal fitting F is connected to a central portion in the vertical direction between the panel materials P, P. However, due to the characteristics of the metal fitting F, it is shown in FIG. As described above, in the low-frequency range, the drop in transmission loss due to resonance transmission can be reduced more than in the structure shown in FIGS. However, in the structure of FIG. 1C, the upper and lower ends of each of the panel members P are connected by the ceiling and the floor surface.
In the high-frequency range of kHz to 4 kHz, the above-described coincidence effect still occurs, and there is a disadvantage that the transmission loss is further reduced as compared with the structure of FIG.

By the way, in the structure of FIGS. 15B and 15C, since the panels P, P, etc. are fixed to the building frame or the like, the listening room of the building is installed in the existing house. There is an inconvenience that it is difficult to dismantle a newly installed or existing listening room formed in a house. Moreover, since dismantling of the listening room involves destruction of materials such as the panel materials P, once dismantled, it becomes difficult to relocate the listening room using the material.
In the case of the relocation, new materials are separately required as in the case of the new construction, and the relocation cost is disadvantageously increased.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of such inconveniences, and a first object of the present invention is to reduce sound insulation performance due to resonance transmission in a low frequency range and a coincidence effect in a high frequency range. It is an object of the present invention to provide a multi-layer soundproof panel and a layer connection structure for each of them, which can prevent noise from occurring and can obtain stable sound insulation performance from a low sound range to a high sound range.

A second object of the present invention is to provide a multi-layer soundproof panel which can be easily assembled, disassembled and relocated, and a structure for connecting the respective layers.

[0009]

In order to achieve the above object, the present invention is a multilayer soundproof panel in which a plurality of soundproof panels are laminated, wherein each of the soundproof panels is arranged in a scattered manner therebetween. In this case, the vibration damping member is connected only by the vibration damping member. According to such a configuration, the sound insulation panels are not connected by the ceiling or floor of the building,
The vibration damping effect can be sufficiently exhibited. That is, with the above configuration, the internal loss, which is one component of the acoustic impedance, can be increased, the drop in the transmission loss due to resonance transmission in the low frequency range can be reduced, and the restraining condition of each sound insulation panel is relaxed, and the bending in the high frequency range is reduced. The generation of waves can be suppressed, and the drop in transmission loss due to the coincidence effect can be suppressed. Therefore, stable sound insulation performance can be obtained from a low-frequency range to a high-frequency range.

The present invention also relates to a multilayer connection structure of a multi-layer sound insulation panel formed by stacking a plurality of sound insulation panels, wherein each sound insulation panel is connected by engaging a hook-and-loop fastener. . According to such a configuration,
The sound insulation panels can be connected to each other with a certain vibration damping area secured, and as described above, stable sound insulation performance can be obtained from the low sound range to the high sound range. In addition, the connection or removal of each sound insulation panel can be easily performed, and the assembly and disassembly of the multi-layer sound insulation panel can be easily performed, and it is also possible to disassemble each sound insulation panel without breaking it. The transfer of the multilayer soundproof panel can be performed easily and at low cost.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION At least one of the sound insulation panels according to the present invention comprises a surface plate attached to a surface of a frame,
A vibration suppression member partially fixed to the inner surface side of the front plate, and the vibration suppression member is provided so as to be able to compensate for a drop in transmission loss in a low frequency range. preferable. With this configuration,
Even if the thickness of the surface plate is reduced to prevent the drop in transmission loss due to the coincidence effect, the drop in transmission loss in the low frequency range accompanying this is compensated for by the vibration suppression member, and more stable sound insulation from the low frequency range to the high frequency range. Performance can be obtained.

[0012] The multilayer soundproof panel includes a primary soundproof panel, a secondary soundproof panel, and a tertiary soundproof panel, and the vibration damping member is disposed between the primary soundproof panel and the secondary soundproof panel. A first vibration damping member, and a second vibration damping member disposed between the secondary sound insulating panel and the tertiary sound insulating panel. On the other hand, the second vibration damping members are arranged at substantially equal intervals at two locations, and are disposed at two locations along each of the upper and lower ends, and at a plurality of locations located therebetween. The first and second vibration damping members are provided at positions vertically displaced from an intermediate first vibration damping member excluding the first vibration damping member, and the first and second vibration damping members are shifted in the left and right direction of each sound insulation panel. Provided in a position Cormorant configuration is also the same time can be adopted. Thereby, the phases of the amplitudes in the sound insulation panels and the air layer between them can be shifted to prevent their resonance, and the drop in transmission loss due to resonance transmission in the low sound range can be further reduced.

Further, the vibration damping member may be constituted by an elastic body having a static compression modulus in a range of 1 × 10 ⁵ N / m ² to 1 × 10 ⁸ N / m ² .

In this specification, positional or directional descriptions such as "up / down" and "left / right" are used when the surface of the multilayer soundproof panel in FIG. 1 is viewed from the near side in the figure, unless otherwise specified. Will be used to mean the position or direction in.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic perspective view showing a state in which the multilayer soundproof panels according to the present embodiment are arranged in a horizontal series, and FIG. 2 is an exploded perspective view of FIG. In these figures, the multilayer soundproof panel 10 includes a primary soundproof panel 12 disposed on the depth side in FIG. 1, a secondary soundproof panel 13 disposed on the same front side of the primary soundproof panel 12, and the secondary soundproof panel. Tertiary sound insulation panel 1 placed on the same side of panel 13
4, a first fastener bar 16 interposed between the primary and secondary sound insulation panels 12 and 13, and a second fastener bar 17 interposed between the secondary and tertiary sound insulation panels 13 and 14. It is provided with. Although not particularly limited, in the present embodiment, each sound insulation panel 1
The plane sizes of 2 to 14 are substantially the same.

The primary sound insulation panel 12 has a structure already proposed by the present applicant (Japanese Patent Application No. 11-55580).
No.) is adopted. That is,
As shown in FIG. 3 and FIG. 4 which is a cross-sectional view thereof, the primary sound insulation panel 12 has first and second face plates 19 and 20.
A frame 22 fixed along the outer peripheral portion of the relative surface of each of the surface plates 19 and 20;
The center rail 2 is disposed at the center of the space surrounded by the surface plates 19, 20 and the frame 22 and extends between the upper and lower ends of the frame 22.
4, first and second reinforcing plates 26 and 27 as vibration suppressing members partially fixed to the inner surfaces of the first and second surface plates 19 and 20, respectively, And a glass wool 29 provided between the second reinforcing plates 26 and 27.

The first and second face plates 19, 20 are:
For example, a medium fiber board (MDF), a particle board or a plywood or the like having a thickness of 6 mm or less and a Young's modulus of 4 × 1
It is formed of a thin plate material of not more than ⁰⁹ N / m ² . For this reason, the drop of the transmission loss which has conventionally occurred in the high-frequency range of 2 kHz to 4 kHz can be increased to 4 kHz or more, and the sharp decrease of the transmission loss due to the coincidence effect in the high-frequency range of 2 kHz to 4 kHz can be effectively prevented. Can be prevented.

As shown in detail in FIG. 4, the middle crosspiece portion 24 includes a downward culvert-type first middle crosspiece 32 fixed to the upper first surface plate 19 in FIG. A second middle rail 33 fixed to the lower second surface plate 20 in a non-contact state with the middle rail 32, and the first and second middle rails 32, 33
And an elastic member 34 interposed therebetween. As described above, since the first and second middle crosspieces 32 and 33 are not brought into direct contact with each other and the elastic member 34 is interposed therebetween, the solid vibration propagation at the central portions of the first and second face plates 19 and 20 is prevented. It is possible to suppress the occurrence of solid-borne noise.

The first and second reinforcing plates 26 and 27 are
For example, it is formed in a strip shape having a thickness of 9 mm to 18 mm made of a plaster board, a particle board, a plywood or the like. These reinforcing plates 26 and 27 extend vertically in FIG. 3, and are provided symmetrically via the middle crosspiece 24. Here, the reinforcing plates 26 and 27 are alternately arranged in a staggered non-facing state.
The length is set so as not to contact the frame 22. As described above, since the first and second reinforcing plates 26 and 27 are staggered so as not to contact each other and to be separated from the frame 22, vibration at the center of each of the surface plates 19 and 20 is possible. And the rebound vibration can be suppressed, and each surface plate 1
The phases of the vibration of the central portions of the plates 9 and 20 and the vibration of the outer peripheral portions of the surface plates 19 and 20 which are the attachment portions to the frame 22 are out of phase with each other, making it difficult to resonate. This can compensate for the drop in transmission loss in the low frequency range.

The secondary sound-insulating panel 13 uses the technology of the primary sound-insulating panel 13 to improve the sound insulating performance like the primary sound-insulating panel 13. In other words, as shown in FIG. 5 and FIG. 6 which is a cross-sectional view taken along the line AA of FIG.
A frame 37 fixed along the outer periphery of the surface plate 36;
A middle rail 39 spanned between the upper and lower ends of the inside of the frame 37
And a reinforcing member 41 as a vibration suppressing member that is disposed between the frame 37 and the middle bar 39 and extends in the left-right direction, and the frame 37, the middle bar 39, and the reinforcing member 4.
1 and a glass wool 43 interposed in a space surrounded by 1.

The surface plate 36 is not particularly limited, but is formed of a non-combustible material such as a gypsum board, for example. Further, the frame body 37 is formed by, for example, vertically and horizontally combining rectangular materials obtained by processing a particle board, and specifically, a vertical bar 45 extending in the vertical direction in FIG. It is constituted by a stay 46. The middle crosspiece 39 is made of, for example, a square material obtained by processing a particle board, and is disposed substantially at the center in the left-right direction. Here, the vertical rails 45, 45 and the middle rail 39 shown in FIG.
The hook-and-loop fasteners 49 are arranged at four positions in the vertical direction at substantially equal intervals on the middle and back surfaces.

The reinforcing members 41 are provided at three locations above and below, and are disposed symmetrically via the middle rail 39. Specifically, as shown in FIG. 6, the reinforcing member 41 is laminated with the reinforcing plate 51 such as a plywood fixed to the surface plate 36 and the reinforcing plate 51. It consists of a glass wool 52 which is set slightly narrower in the direction perpendicular to the paper surface, and a push plate 53 such as plywood laminated on the glass wool 52. As a whole, the vertical bar 45 and the middle bar 39 in the vertical direction in FIG. It is set lower than the height. Further, the reinforcing member 41 is arranged with a slight gap between the vertical bars 45, 45 and the middle bar 39 so as not to contact with them.

The tertiary sound insulation panel 14 also employs the technology of the primary sound insulation panel 13 to improve the sound insulation performance like the primary sound insulation panel 13.
As shown in FIG. 7, a front plate 55 formed in a substantially rectangular shape by rock wool or the like, and a reinforcing member as a vibration suppressing member fixed to the back side of the front plate 55 in the figure and extending in the vertical direction. The material 56 is provided.
The reinforcing member 56 is not particularly limited, but is formed in a strip shape by laminating plywood and MDF, and is disposed at substantially equal intervals at five locations in the left-right direction. The reinforcing member 56A located substantially at the center in the left-right direction is:
The width in the left-right direction is wider than the reinforcing members 56B to 56E at other positions. Further, surface fasteners 59 are arranged at predetermined intervals in five places in the vertical direction on the back surface of the reinforcing member 56A at the center and the reinforcing members 56B and 56C located at both left and right end portions in the figure.

As shown in FIG. 8, the first fastener bar 16 has a base 61 formed in a strip shape by a plywood or the like, and a substantially constant interval on one surface of the base 61. A plurality of liner members 62 protruding from the liner member 6
2 and a hook-and-loop fastener 63 that engages with the hook-and-loop fastener 49 of the secondary sound insulation panel 13. Here, the material and the shape of the first fastener bar 16 do not significantly affect the vibration mode of the primary sound insulation panel 12, in other words, the primary sound insulation panel 12.
Is selected as appropriate so as not to restrict the vibration of. That is, as long as such, the material and thickness of the base material 61,
Alternatively, the pitch of the surface fastener 63, that is, the liner material 6
The distance between the centers of the two is determined relatively. In particular, it is preferable that the thickness of the base material 61 is 12 mm or less, and the pitch of the surface fastener 63 is about 440 mm to 450 mm. In addition, the liner member 62 is projected from each of the sound insulation panels 1.
This is because a space is created between 2 and 13 and the soundproofing effect is further enhanced by the air layer in this space.

As shown in FIG. 9, the second fastener bar 17 has a base 66 formed in a long piece shape by a plywood or the like and a substantially constant interval on one surface of the base 66. A plurality of hook-and-loop fasteners are provided, and the hook-and-loop fasteners 69 engage with hook-and-loop fasteners 59 provided on the tertiary sound insulation panel 14. Here, similarly to the first fastener bar 16, the second fastener bar 17 is provided with a material and a shape that does not significantly affect the vibration mode of the secondary sound insulation panel 13. Although not particularly limited, in this embodiment, the base material 66
Is set to 3 mm and the hook-and-loop fastener 6
The distance (pitch) between the central portions of No. 9 is set to 445 mm.

The first and second fastener bars 1
The interposition of the fasteners 6 and 17 is not limited to the above, and the fastener bars 16 and 17 may be replaced and arranged.
Further, the first fastener bar 16 may be used in place of the second fastener bar 17 within a height range that does not increase the overall thickness (wall thickness) of the multilayer soundproof panel 10.

Each surface fastener 4 described above
Known products having substantially the same shape are used for 9, 59, 63, and 69, respectively, and by pressing the corresponding surface fasteners from the state of FIG. 10A, as shown in FIG. The tips of the mushroom-shaped projections 71 engage while allowing a slight relative movement in the vertical direction in FIG. Thereby, one surface fastener 63, 6
9 is absorbed, and the other surface fasteners 49 and 59 are absorbed.
Vibration transmission loss to the side can be generated. In addition,
Each hook-and-loop fastener 49 etc. is not limited to the above, and a pair of well-known hook-and-loop fasteners made of a pile cloth and a hook cloth,
Various types can be adopted as long as they have substantially the same operation. Here, hook-and-loop fastener 49,
While 63 constitutes a first vibration impact member, surface fasteners 59 and 69 constitute a second vibration impact member.

The multilayer soundproof panel 1 constructed as described above
0, FIG. 1, FIG. 2, and FIG.
4 will be described below. FIG. 11 shows a cross-sectional view of FIG. 1, and FIG. 12 shows a partially enlarged view of FIG. FIG. 13 is a longitudinal sectional view of FIG.
Shows a partially enlarged view thereof.

First, the primary sound insulating panel 12 is arranged at a predetermined position such that the second surface plate 20 is located on the near side in FIG. 2, and as shown in FIG. The first fastener bar 16 is fixed to the outer surface. Here, the first fastener bar 16 and the second surface plate 20 are dispersed and joined by screws 73 as joining means. That is, the screw 73 is approximately 70 m at both ends of the hook-and-loop fastener 63.
m, and the first fastener bar 16 is not bonded to the second face plate 20. Also,
The first fastener bar 16 is configured such that when the secondary sound insulation panel 13 is disposed, the surface fastener 63 of the first fastener bar 16 and the surface fastener 49 on the secondary sound insulation panel 13 can be engaged. It is attached to the upper and lower ends of the primary sound insulation panel 12 and two places between them at substantially equal intervals.

Next, the first fastener bar 16 attached to the primary sound insulation panel 12 is attached to the second sound insulation panel 13.
Press. That is, the secondary sound insulation panel 13 is moved toward the first fastener bar 16 in a direction in which the surface plate 36 side is the near side in FIG. 2, and the surface fasteners 49 and 63 are pressed together to form the primary sound insulation panel 13. Sound insulation panel 1
Connect to two sides. After that, the second fastener bar 17 is fixed to the outer surface side of the surface plate 36. At this time, the second fastener bar 17 is also fixed to the surface fastener 69 by the screw 73.
The surface plate 36 has an interval D of about 70 mm or more on both end sides of the
And does not adhere to the secondary sound insulation panel 13. Further, the second fastener bar 17 is provided with the tertiary sound insulation panel 14.
Are arranged, the surface fastener 69 of the second fastener bar 17 and the surface fastener 5 on the tertiary sound insulation panel 14 side
9 are attached to the upper and lower ends of the secondary sound insulation panel 13 and three places between them so as to be engageable. Then, the tertiary sound insulation panel 14 is pressed against the second fastener bar 17 attached to the secondary sound insulation panel 13. Here, the tertiary sound insulation panel 14 has a surface plate 55 side as shown in FIG.
By moving toward the second fastener bar 17 in a direction toward the middle front side and pressing the surface fasteners 59 and 69 together, the surface fasteners 59 and 69 are connected to the secondary sound insulation panel 13 side. Note that, between the sound insulation panels 12 to 14, the portion where the fastener bars 16 and 17 are not interposed serves as an air layer for enhancing the sound insulation effect.

As shown in FIG. 12, the multilayer soundproof panel 10 attached in this manner has surface fasteners 49, 6 engaged between the primary and secondary soundproof panels 12, 13.
3 and the surface fasteners 59 and 69 engaged between the secondary and tertiary sound insulation panels 13 and 14 are displaced L1 in the left-right direction.
Is caused to occur. As shown in FIGS. 13 and 14, the hook-and-loop fasteners 49 and 63 and the hook-and-loop fasteners 59 and 69 arranged at the middle except for the upper and lower ends of each of the sound insulation panels 12 to 14 are provided at least in the vertical direction thereof. A displacement L2 of approximately 150 mm or more is generated.

FIG. 16 shows the results of an experiment for confirming the sound insulation performance of the multilayer soundproof panel 10 in the above embodiment. As shown in FIG. Compared with the conventional structure shown in FIGS. 15A to 15C, it is possible to reduce a drop in transmission loss in a low frequency range, to prevent a decrease in sound insulation performance due to a coincidence effect in a high frequency range, It will be clearly understood that stable sound insulation performance can be exhibited over a high frequency range.

According to the above embodiment, the multilayer soundproof panel 10 is formed by the first and second fastener bars 16, 16.
Since the sound insulation panels 12 to 14 are connected to each other through the intermediary 17, the multilayer sound insulation panel 10 can be easily assembled, disassembled, and relocated.
That is, as an example, the primary sound insulation panel 12 is assembled in a box shape, and the first and second fastener bars 16, 1 are attached thereto.
By stacking the secondary and tertiary sound insulation panels 13 and 14 via 7, a listening room that is structurally independent from the existing building can be simply formed in the room without depending on the frame of the existing building. Or it can be easily dismantled irrespective of the structure of the building, and can be easily relocated.

Furthermore, even if the air layer between the sound insulation panels 12 to 14 is thinned, the occurrence of resonance transmission is suppressed, so that the overall thickness of the multilayer sound insulation panel 10 can be reduced, and the interior of the room in which it is installed is installed. Dead space can be minimized and its effective area can be increased.

The sound insulation panels in the present invention are not limited to the structure of the above embodiment, but may be any sound insulation panels having a predetermined sound insulation effect.

In the above embodiment, the first and second
Fasteners 49, 59, 6
Although the case where 3, 69 is adopted has been illustrated and described, the present invention is not limited to this, and as the first and second vibration impact members,
Static compression elastic modulus of 1 × 10 ⁵ N / m ² to 1 × 10 ⁸ N / m ²
The sound insulating panels 12 to 14 may be connected to each other by using elastic bodies having a range of the above. Although the shape of the elastic body is not particularly limited, each sound insulating panel 12
The smaller the contact portion with the 14, the higher the sound insulation performance is obtained.

Further, in the above-described embodiment, the multi-layer soundproof panel 10 composed of three layers of sound insulating panels is used. However, the present invention is not limited to this, and can be applied to a two-layer structure or a multi-layer soundproof panel. .

Further, the configuration of each member in the present invention is not limited to the illustrated configuration example, and various changes can be made as long as substantially the same operation is achieved.

[0040]

As described above, according to the present invention,
Since each sound insulation panel is connected by vibration dampers arranged in a scattered manner, it is possible to reduce the drop in transmission loss due to resonance transmission in the low sound range and to suppress the drop in transmission loss due to the coincidence effect. As a result, stable sound insulation performance can be obtained from a low-frequency range to a high-frequency range.

Further, at least one of the sound insulation panels is fixed to a surface plate attached to the surface of the frame, and is partially fixed to the inner surface side of the surface plate, so as to reduce the transmission loss in the low sound range. Because it includes a vibration suppression member that can be compensated for,
Even if the thickness of the surface plate is reduced, it is possible to compensate for the decrease in the transmission loss in the low frequency range accompanying the thickness reduction, and to obtain more stable sound insulation performance from the low frequency range to the high frequency range.

Further, a first vibration damping member arranged between the primary sound insulating panel and the secondary sound insulating panel is arranged at substantially equal intervals at four places in the vertical direction of each sound insulating panel, while the second sound insulating member is arranged. The second disposed between the panel and the tertiary sound insulation panel
Are arranged at two positions along each of the upper and lower ends and at a plurality of positions located between them, and the first vibration damping member in the middle except for the first vibration damping member at the two upper and lower positions is provided. In addition, since the first and second vibration damping members are provided at positions shifted in the left-right direction of each sound insulation panel, a drop in transmission loss due to resonance transmission in a low sound range is provided. It can be further reduced.

Further, since the sound insulation panels are connected to each other by the engagement of hook-and-loop fasteners, the sound insulation panels can be connected to each other in a state where a certain vibration damping area is secured. And stable sound insulation performance, and assembling, dismantling,
Relocation can also be performed easily.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a state where multilayer soundproof panels according to the present embodiment are arranged in a horizontal series.

FIG. 2 is an exploded perspective view of FIG.

FIG. 3 is a schematic perspective view of a state where the primary sound insulation panel is partially cut away.

FIG. 4 is a transverse sectional view of FIG. 3;

FIG. 5 is a schematic perspective view of a state where the secondary sound insulation panel is partially cut away.

FIG. 6 is a sectional view taken along line AA of FIG. 5;

FIG. 7 is a schematic perspective view showing a state where the tertiary sound insulation panel is partially cut away.

FIG. 8 is a schematic perspective view of a first fastener bar.

FIG. 9 is a schematic perspective view of a second fastener bar.

FIGS. 10A and 10B are schematic diagrams for explaining an engagement procedure between hook-and-loop fasteners.

FIG. 11 is a transverse sectional view of FIG. 1;

FIG. 12 is a partially enlarged view of FIG. 11;

FIG. 13 is a longitudinal sectional view of FIG. 1;

FIG. 14 is a partially enlarged view of FIG.

FIGS. 15A to 15C are longitudinal sectional views schematically showing the structure of a conventional partition wall.

FIG. 16 is a view showing an experimental result for confirming the sound insulation performance of the multilayer soundproof panel according to the example while comparing it with the structure of a conventional partition wall.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Multi-layer sound insulation panel, 12 ... Primary sound insulation panel, 13 ... Secondary sound insulation panel, 14 ... Tertiary sound insulation panel, 19 ... 1st surface plate, 20 ... 2nd Surface plate, 26... First reinforcing plate (vibration suppressing member), 27.
..Second reinforcing plate (vibration suppressing member), 36 ... surface plate, 41 ... reinforcing member (vibration suppressing member), 49 ...
Surface fastener, 55: Surface plate, 56: Reinforcing member (vibration suppressing member), 59: Surface fastener, 63 ...
・ Hook-and-loop fastener, 69 ・ ・ ・ Hook-and-loop fastener, 73 ・ ・ ・
Screw (joining means)

Claims (6)

[Claims] 1. A multi-layer sound insulation panel comprising a plurality of sound insulation panels laminated, wherein each of the sound insulation panels is connected only by a vibration damping member arranged in a scattered manner therebetween. Multi-layer soundproof panel. 2. At least one of the sound insulation panels includes a surface plate attached to a surface of a frame, and a vibration suppressing member partially fixed to an inner surface side of the surface plate. 2. The multilayer soundproof panel according to claim 1, wherein the vibration suppressing member is provided so as to compensate for a drop in transmission loss in a low sound range. 3. The multi-layer sound insulation panel includes a primary sound insulation panel, a secondary sound insulation panel, and a tertiary sound insulation panel, and the vibration damping member is disposed between the primary sound insulation panel and the secondary sound insulation panel. A second vibration-absorbing member and a second sound-insulating panel disposed between the secondary sound-insulating panel and the third sound-insulating panel
The first vibration damping member is disposed at substantially equal intervals at four positions in the vertical direction of each sound insulation panel, while the second vibration damping member is disposed at each of the upper and lower ends. At two positions along the part and at a plurality of positions located between them, at a position vertically displaced with respect to an intermediate first vibration damping member excluding two upper and lower first vibration damping members. The multi-layer soundproof panel according to claim 1 or 2, wherein the first and second vibration damping members are provided at positions shifted in the left-right direction of each soundproof panel. 4. The vibration damping member is constituted by a pair of hook-and-loop fasteners which can be engaged by pressing each other, and the pair of hook-and-loop fasteners are engaged so as to allow relative movement between the sound insulation panels. The multilayer soundproof panel according to claim 1, 2 or 3, wherein 5. The vibration damping member is made of an elastic body having a static compression modulus in a range of 1 × 10 ⁵ N / m ² to 1 × 10 ⁸ N / m ^2. The multilayer soundproof panel according to claim 1, 2 or 3, wherein: 6. A multi-layered soundproofing panel comprising a plurality of soundproofing panels laminated, wherein the respective soundproofing panels are connected by engaging a hook-and-loop fastener. Connection structure.