JP2020159076A - Sound insulation system - Google Patents

Abstract

To provide a sound insulation system capable of changing sound insulation performance.SOLUTION: Included are: a first roll screen 10 having a first screen 13 and a first winding shaft 11 around which the first screen 13 is wound; and a second roll screen 20 having a second screen 13 and a second winding shaft 11 which is arranged on the side of the first winding shaft 11 and around which the second screen 13 is wound so that the position of the second screen 13 with respect to the first screen 13 can be changed by changing the winding method of the second screen 13.SELECTED DRAWING: Figure 5

Description

The present invention relates to a technique for a sound insulation system using a roll screen.

Conventionally, a technique of a roll screen including a rotatable support shaft and a screen wound around the support shaft has been known. For example, as described in Patent Document 1.

In the technique described in Patent Document 1, a pair of screens having curls in different directions are integrally pulled out and used. With such a configuration, when the pair of screens are pulled out (expanded state), the pair of screens cancel each other's windings. Thereby, a flat screen can be obtained.

Such roll screens may be used for the purpose of sound insulation as well as light shielding and shielding. However, since the sound insulation performance of the roll screen depends on the material and weight of the screen, it may not be possible to obtain a sufficient sound insulation effect such as resonance occurring in a specific sound range. Further, it is assumed that the ambient sound (particularly noise) to be sound-insulated covers various sound ranges depending on the source. Therefore, a sound insulation system capable of arbitrarily changing the sound insulation performance according to noise is desired.

Jikkai Sho 61-194090

The present invention has been made in view of the above circumstances, and an object to be solved thereof is to provide a sound insulation system capable of changing the sound insulation performance.

The problem to be solved by the present invention is as described above, and next, the means for solving this problem will be described.

That is, in claim 1, the first screen, the first roll screen including the first winding shaft around which the first screen is wound, the second screen, and the first screen. The second screen is arranged on the side of the winding shaft of the second screen, and the position of the second screen with respect to the first screen can be changed by changing the winding method of the second screen. It comprises a second roll screen comprising a second take-up shaft around which the screen is wound.

In claim 2, the second roll screen includes a weight bar provided at the lower end of the second screen, and the weight bar suppresses the occurrence of slack in the second screen when it touches the ground. It is provided with a suppression mechanism.

In claim 3, the restraining mechanism includes a fixing portion fixed to the lower end portion of the second screen and an accommodating portion accommodating the fixing portion so that the fixing portion can move up and down. It is equipped.

In claim 4, the second roll screen can tilt the second screen with respect to the vertical direction by rotating the second take-up shaft with the weight bar grounded. It is possible.

In claim 5, an actuator for rotationally driving the second take-up shaft and a control unit capable of controlling the operation of the actuator are further provided.

In claim 6, a detection unit for detecting ambient sound is further provided, and the control unit controls the operation of the actuator based on the ambient sound detected by the detection unit.

As the effect of the present invention, the following effects are exhibited.

In claim 1, the sound insulation performance can be changed.

In claim 2, the occurrence of slack in the second screen can be suppressed.

In claim 3, the suppression mechanism can have a simple configuration.

In claim 4, the width between the screens can be changed according to the height, and the occurrence of resonance can be effectively suppressed.

In claim 5, the sound insulation performance can be changed automatically.

In claim 6, the sound insulation performance can be changed according to the ambient sound.

The perspective view which showed the structure of the sound insulation system which concerns on 1st Embodiment of this invention. Similarly, a schematic side view and a partially enlarged sectional view. A schematic side view showing how the position of the screen is changed. A schematic side view and a partially enlarged sectional view showing the operation of the suppression mechanism. The side schematic which showed the example which changed the width of the air layer. A schematic side view showing a state in which the screen is tilted and used. The perspective view which showed the structure of the sound insulation system which concerns on 2nd Embodiment.

In the following description, for convenience, the vertical direction, the horizontal direction, and the front-back direction are defined according to the arrows shown in the figure.

First, the configuration of the sound insulation system 1 according to the first embodiment of the present invention will be described with reference to FIGS. 1 and 2. The sound insulation system 1 is for blocking (insulating) ambient sounds (particularly, noise that affects human health and living environment). The sound insulation system 1 mainly includes a first roll screen 10 and a second roll screen 20.

In this embodiment, the first roll screen 10 and the second roll screen 20 have substantially the same configuration. Therefore, in the following, the configuration of the first roll screen 10 will be specifically described, and the description of the configuration of the second roll screen 20 will be omitted.

The first roll screen 10 mainly includes a take-up shaft 11, a support portion 12, a screen 13, a weight bar 14, and a chain 15.

The take-up shaft 11 is a shaft on which the screen 13 described later is wound. The take-up shaft 11 is formed in a substantially columnar shape. The take-up shaft 11 is arranged so that the longitudinal direction is substantially horizontal (left and right in this embodiment).

The support portion 12 rotatably supports the take-up shaft 11. The support portions 12 are arranged at both ends of the take-up shaft 11. The support portion 12 is fixed at an appropriate location (in this embodiment, the ceiling 4 described later).

The screen 13 is a sheet-like member for appropriately partitioning the space. The screen 13 is formed using an appropriate material. The screen 13 is formed in a substantially rectangular shape. One end (upper end) of the screen 13 is fixed at a predetermined position (fixed position P) on the outer peripheral surface of the take-up shaft 11 (see FIG. 3).

The weight bar 14 stretches the screen 13 by its own weight. The weight bar 14 is provided at the lower end of the screen 13. The weight bar 14 mainly includes a fixing portion 14a and an accommodating portion 14b.

The fixing portion 14a is fixed to the lower end portion of the screen 13. The fixing portion 14a is formed in a longitudinal shape extending substantially horizontally along the lower end portion of the screen 13. The fixing portion 14a is formed in a rectangular shape in a side view. The fixing portion 14a is fixed to the lower end portion of the screen 13 in the accommodating portion 14b described later.

The accommodating portion 14b accommodates the fixing portion 14a. The accommodating portion 14b is formed in a longitudinal shape extending substantially horizontally along the lower end portion of the screen 13. The accommodating portion 14b is formed in a hollow shape (box shape). The vertical width of the inside (hollow portion) of the accommodating portion 14b is formed to be larger than the vertical width of the fixing portion 14a.

A slit 14c is formed on the upper surface of the accommodating portion 14b. The lower end of the screen 13 is inserted into the accommodating portion 14b via the slit 14c. In the accommodating portion 14b, the fixing portion 14a is fixed to the lower end portion of the screen 13. The width of the slit 14c is formed to be smaller than that of the fixed portion 14a. Therefore, the accommodating portion 14b does not fall off from the lower end portion of the screen 13.

The chain 15 is an operating tool for rotating the take-up shaft 11. The chain 15 is connected to the take-up shaft 11 at one end of the take-up shaft 11. The chain 15 is provided so as to hang down from the take-up shaft 11 to a predetermined height. The user can rotate the take-up shaft 11 in any direction by rotating the chain 15.

As described above, the configuration of the second roll screen 20 is substantially the same as the configuration of the first roll screen 10. Each component of the second roll screen 20 is illustrated with the same reference numerals as the corresponding component of the first roll screen 10.

The first roll screen 10 and the second roll screen 20 are arranged so as to be adjacent to the window 2. Specifically, as shown in FIG. 2, the second roll screen 20 is arranged so as to be adjacent to the indoor side (rear in FIG. 2) of the window 2. Further, the first roll screen 10 is arranged on the side of the second roll screen 20 (so as to be adjacent to the indoor side). At this time, the take-up shaft 11 of the first roll screen 10 and the take-up shaft 11 of the second roll screen 20 are arranged at the same height and in parallel.

The window 2 illustrated in the present embodiment is formed from the floor 3 to the vicinity of the ceiling 4 for convenience (so-called sweep window), but the present invention is not limited to this, and various other windows. It may be (high-waisted window, bay window, etc.).

The first roll screen 10 and the second roll screen 20 configured in this way change the position (specifically, the position in the front-rear direction) of the screen 13 by changing the winding direction of the screen 13. be able to. Hereinafter, the first roll screen 10 will be specifically described by taking as an example.

For example, as shown in FIG. 3A, a state in which the lower end portion (weight bar 14) of the screen 13 hangs down from the front side of the take-up shaft 11 in the left side view (the screen 13 is a clock with respect to the take-up shaft 11). When the take-up shaft 11 is rotated counterclockwise when viewed from the left side, the screen 13 is gradually pulled out downward (FIG. 3 (b)), and the weight bar 14 is placed on the floor 3 from the state of being wound around). Grounds (contacts) with (Fig. 3 (c)). Further, when the take-up shaft 11 is rotated counterclockwise and the fixed position P moves backward, the screen 13 also moves backward (FIGS. 3 (d) to 3 (f)).

In this way, the position of the screen 13 (position in the front-rear direction) of the first roll screen 10 can be changed by changing the winding method (winding direction and winding amount) of the screen 13. Specifically, by rotating the take-up shaft 11 clockwise or counterclockwise on the left side, the position of the screen 13 can be arbitrarily changed within the width (front-back width) of the take-up shaft 11. (See FIG. 3).

Here, as shown in FIG. 3C, when the take-up shaft 11 is further rotated counterclockwise from the state where the weight bar 14 is in contact with the floor 3, the screen 13 is lowered (screen 13). Since the upper end (fixed position P) moves downward), the screen 13 may sag between the take-up shaft 11 and the floor 3. However, in the present embodiment, the weight bar 14 is provided with a suppressing mechanism (fixing portion 14a and accommodating portion 14b) for suppressing the slack, thereby suppressing the occurrence of the slack. Hereinafter, the suppression mechanism will be specifically described.

As shown in FIG. 4A, until the weight bar 14 touches the floor 3, the accommodating portion 14b is caught by the fixing portion 14a fixed to the lower end portion of the screen 13, and the accommodating portion 14b is held by the screen 13. Suspended in.

As shown in FIG. 4B, when the screen 13 is further lowered while the weight bar 14 (accommodating portion 14b) is in contact with the floor 3, the fixed portion 14a moves inside the accommodating portion 14b by the amount that the screen 13 is lowered. Move down. In this way, since the fixing portion 14a is allowed to move inside the accommodating portion 14b, it is possible to suppress the occurrence of slack in the screen 13 between the take-up shaft 11 and the floor 3.

In order to suppress such slack as much as possible, the fixed portion 14a is provided with a lowering distance L of the screen 13 (fixed position P) from the state where the weight bar 14 is in contact with the ground until the screen 13 is in the lowest state. It is desirable to appropriately set the shapes of the fixed portion 14a and the accommodating portion 14b (particularly, the vertical width of the fixed portion 14a and the vertical width inside the accommodating portion 14b) so that the movement is permitted. That is, it is desirable to set the dimensions of the accommodating portion 14b and the like so that the fixed portion 14a can move within the accommodating portion 14b by a descending distance L or more.

Although the state of changing the position of the screen 13 using the first roll screen 10 has been described above, the position of the screen 13 can be changed in the same manner for the second roll screen 20.

Hereinafter, a method of using the sound insulation system 1 configured as described above will be described.

As shown in FIG. 2, the sound insulation system 1 can form a layer of air (air layer A) between the screens 13 by lowering the screens 13 of the first roll screen 10 and the second roll screen 20. it can. By forming the air layer A between the screens 13 in this way, the effect of blocking (sound-insulating) noise from the outside of the window 2 can be expected.

Here, in general, in a structure having an air layer A (hollow layer) as in the present embodiment, resonance occurs by using the air of the air layer A as a spring at a specific frequency, and the sound insulation property is lowered. I know. Further, it is known that the frequency at which such resonance (resonance transmission phenomenon) occurs changes according to the width d of the air layer A (hollow layer).

Specifically, as the width d increases, the frequency at which the resonance transmission phenomenon occurs decreases, so that resonance is likely to occur due to the bass. In other words, if the width d is increased, high-pitched noise can be effectively blocked.

Further, as the width d becomes smaller, the frequency at which the resonance transmission phenomenon occurs becomes higher, so that resonance is likely to occur due to high-pitched sounds. In other words, if the width d is reduced, the low-pitched noise can be effectively blocked.

Therefore, in the present embodiment, the position of the screen 13 can be changed as described above, so that the width d of the air layer A can be changed and the sound insulation performance of the sound insulation system 1 can be changed. .. By changing the width d of the air layer A according to the type of noise, the noise can be effectively blocked.

FIG. 5 shows an example in which the width d of the air layer A is changed by changing the position of the screen 13.

For example, in the example shown in FIG. 5A, the screen 13 of the first roll screen 10 is moved to the rearmost position, and the screen 13 of the second roll screen 20 is moved to the frontmost position. In this state, the width d of the air layer A becomes the maximum (dmax).

Further, in the example shown in FIG. 5B, the screen 13 of the first roll screen 10 is moved to the frontmost position, and the screen 13 of the second roll screen 20 is moved to the rearmost position. In this state, the width d of the air layer A is the minimum (dm).

Further, in the example shown in FIGS. 2 and 5 (c), the screen 13 of the first roll screen 10 and the second roll screen 20 was moved to the frontmost (FIG. 2) or the rearmost (FIG. 5 (c)). An example is shown. The width d of the air layer A in the state shown in FIGS. 2 and 5 (c) is the same, and is moderate (dmax <d <dmin).

By changing the position of the screen 13 in this way, the width d of the air layer A can be arbitrarily changed. By appropriately changing the width d according to the type of generated noise, the sound insulation performance of the sound insulation system 1 can be changed, and the noise can be effectively blocked. For example, in the daytime when relatively high-pitched sounds are likely to be noisy, such as a child's voice, increasing the width d can effectively block high-pitched noise. Further, in the nighttime time zone in which relatively low-pitched sound is likely to become noise such as the sound of a car running, the noise in the low-pitched range can be effectively blocked by reducing the width d.

By providing the sound insulation system 1 in the vicinity of the window 2 as in the present embodiment, it is possible to use the sound insulation system 1 not only for the purpose of sound insulation but also for the purpose of shading like a general roll screen. .. Further, the air layer A between the screens 13 as in the present embodiment can be expected to have not only a sound insulating effect but also a heat insulating (insulating) effect.

Further, as in the present embodiment, by providing the sound insulation system 1 so as to face the window 2, the sound insulation system 1 (specifically, the screen 13 of the second roll screen 20) is also provided between the window 2 and the sound insulation system 1. An air layer B (see FIG. 5) can be formed. As a result, the sound insulation effect can be obtained not only by the air layer A but also by the air layer B. Further, the width D of the air layer B can be changed by changing the position of the screen 13 of the second roll screen 20. In this way, the sound insulation effect can be arbitrarily changed by changing not only the width d of the air layer A but also the width D of the air layer B.

Further, as shown in FIG. 6, the screen 13 of the sound insulation system 1 can be used by being tilted with respect to the vertical direction. Hereinafter, a specific description will be given.

As shown in FIG. 6A, the take-up shaft 11 is rotated counterclockwise when viewed from the left side from the state where the weight bar 14 of the second roll screen 20 is in contact with the ground. As a result, the upper end (fixed position P) of the screen 13 moves backward (FIG. 6 (b)). On the other hand, the weight bar 14 is held in place by the frictional force with the floor 3. Therefore, the fixed position P moves rearward relative to the weight bar 14, and the upper end of the screen 13 is inclined toward the rear.

By inclining the screen 13 of the second roll screen 20 in this way, the width d of the air layer A becomes not constant. That is, the width d of the air layer A differs depending on the height.

Here, as described above, the frequency at which resonance occurs is determined according to the width d of the air layer A. On the other hand, as shown in FIG. 6C, by tilting the screen 13, the width d differs depending on the height, so that the frequency at which the resonance transmission phenomenon occurs can be eliminated. That is, in such a state, resonance is unlikely to occur with respect to noise in any range, and stable sound insulation can be obtained.

When the screen 13 is tilted and used in this way, the shape of the weight bar 14 and the shape of the weight bar 14 so that a certain amount of frictional force (friction force that is easy to tilt) can be obtained between the weight bar 14 and the floor 3. It is desirable to select the material and the like as appropriate. Further, in FIG. 3 used in the above description, the friction (inclination of the screen 13) is not taken into consideration for the sake of simplification of the description.

As described above, the sound insulation system 1 according to the present embodiment is
A first screen 13 and a first roll screen 10 including a first take-up shaft 11 around which the first screen 13 is wound.
The second screen 13 and the second screen 13 are arranged on the side of the first winding shaft 11 and by changing the winding method of the second screen 13. A second roll screen 20 having a second take-up shaft 11 around which the second screen 13 is wound so that the position of the screen 13 can be changed.
Is provided.
With this configuration, the sound insulation performance can be changed. That is, the width d of the air layer A formed between the two screens 13 can be changed by changing the position of the screen 13 of the second roll screen 20 with respect to the screen 13 of the first roll screen 10. As a result, the sound insulation performance of the sound insulation system 1 can be arbitrarily changed.

Further, the second roll screen 20 is
A weight bar 14 provided at the lower end of the second screen 13 is provided.
The weight bar 14
It is provided with a suppressing mechanism (fixing portion 14a and accommodating portion 14b) for suppressing the occurrence of slack in the second screen 13 when the screen 13 is grounded.
With this configuration, it is possible to suppress the occurrence of slack in the second screen 13. That is, even if the weight bar 14 touches the ground when changing the position of the screen 13 of the second roll screen 20, it is possible to prevent the screen 13 from sagging. As a result, the aesthetic appearance of the sound insulation system 1 can be maintained.

In addition, the suppression mechanism
A fixing portion 14a fixed to the lower end portion of the second screen 13 and
An accommodating portion 14b accommodating the fixing portion 14a so that the fixing portion 14a can move up and down,
Is provided.
With such a configuration, the suppression mechanism can be made a simple configuration.

Further, the second roll screen 20 is
By rotating the second take-up shaft 11 with the weight bar 14 grounded, the second screen 13 can be tilted in the vertical direction.
With this configuration, the width between the screens 13 can be changed according to the height, and the occurrence of resonance can be effectively suppressed.

The take-up shaft 11 and screen 13 of the first roll screen 10 (and / or the take-up shaft 11 and screen 13 of the second roll screen 20) according to the present embodiment are the first take-up according to the present invention. It is an embodiment of the shaft and the first screen.
Further, the take-up shaft 11 and screen 13 of the second roll screen 20 according to the present embodiment (and / or the take-up shaft 11 and screen 13 of the first roll screen 10) are the second take-up according to the present invention. It is an embodiment of a shaft and a second screen.
Further, the fixing portion 14a and the accommodating portion 14b according to the present embodiment are one embodiment of the suppressing mechanism according to the present invention.

Hereinafter, the configuration of the sound insulation system 1A according to another embodiment (second embodiment) of the present invention will be described with reference to FIG. 7.

The difference between the sound insulation system 1A according to the second embodiment and the sound insulation system 1 according to the first embodiment is that the position of the screen 13 can be automatically changed. Specifically, the sound insulation system 1A according to the second embodiment is different from the sound insulation system 1 according to the first embodiment in that it includes an actuator 30, a microphone 40, and a control unit 50. The differences will be specifically described below.

The actuator 30 generates a driving force for rotating the take-up shaft 11. The actuator 30 is composed of, for example, a motor or the like. One actuator 30 is connected to the take-up shaft 11 of the first roll screen 10 and the second roll screen 20. The driving force generated by the actuator 30 is transmitted to the take-up shaft 11 via an appropriate power transmission member (gear, shaft, etc.). By controlling the operation of the actuator 30, the take-up shaft 11 can be rotated in an arbitrary direction.

The microphone 40 detects ambient sound (particularly noise). The microphone 40 is arranged at an arbitrary place. For example, the microphone 40 is arranged near the window 2 (outdoor or indoor side of the window 2).

The control unit 50 can control the operation of the actuator 30. The control unit 50 includes a storage unit such as a RAM, a ROM, and an HDD, an arithmetic processing unit such as a CPU, and the like. The control unit 50 stores various information, programs, and the like for controlling the operation of the actuator 30.

The control unit 50 is connected to the microphone 40 and can acquire information on noise detected by the microphone 40. Further, the control unit 50 is connected to the actuator 30 and can control the operation of the actuator 30.

In the sound insulation system 1A configured in this way, the position of the screen 13 can be automatically changed by controlling the operation of the actuator 30 by the control unit 50. For example, the control unit 50 can change the position of the screen 13 according to the current time. Specifically, the position of the screen 13 is changed so that the width d becomes large during the daytime when relatively high-pitched sounds such as children's voices tend to be noisy. As a result, the sound insulation system 1A can effectively block the noise in the high frequency range. In addition, the position of the screen 13 is changed so that the width d becomes smaller during the nighttime time when relatively low-pitched sounds such as the sound of a car running tend to be noisy. As a result, the sound insulation system 1A can effectively block low-pitched noise.

The control unit 50 can also automatically change the position of the screen 13 based on the noise detected by the microphone 40. For example, when the microphone 40 detects relatively high-pitched noise, the control unit 50 changes the position of the screen 13 so that the width d becomes large. As a result, the sound insulation system 1A can effectively block the noise in the high frequency range. Further, when the microphone 40 detects relatively low-pitched noise, the control unit 50 changes the position of the screen 13 so that the width d becomes smaller. As a result, the sound insulation system 1A can effectively block low-pitched noise.

As described above, the sound insulation system 1A according to the second embodiment is
An actuator 30 that rotationally drives the second take-up shaft 11 and
A control unit 50 capable of controlling the operation of the actuator 30 and
Is further provided.
With this configuration, the sound insulation performance can be changed automatically. Thereby, convenience can be improved.

In addition, the sound insulation system 1A
Further equipped with a microphone 40 (detection unit) for detecting ambient sound,
The control unit 50
The operation of the actuator 30 is controlled based on the ambient sound detected by the microphone 40.
With this configuration, the sound insulation performance can be changed according to the noise. As a result, noise can be effectively blocked.

Although the embodiments according to the present invention have been described above, the present invention is not limited to the above configuration, and various modifications can be made within the scope of the invention described in the claims.

For example, in the above embodiment, the screens 13 of both the first roll screen 10 and the second roll screen 20 are configured to be movable back and forth. However, the present invention is not limited to this, and it is also possible to have a configuration in which only one of the screen 13 of the first roll screen 10 and the second roll screen 20 can be moved back and forth. In this way, if at least one of the first roll screen 10 and the second roll screen 20 can be moved back and forth, the width d of the air layer A can be changed, and the sound insulation performance can be changed. can do.

Further, in the above embodiment, the first roll screen 10 and the second roll screen 20 are provided with a suppressing mechanism (fixing portion 14a and accommodating portion 14b) for suppressing the sagging of the screen 13, but the suppressing mechanism is not necessarily provided. It does not have to be provided.

Further, the control mode by the control unit 50 is not limited to the above embodiment, and the position of the screen 13 can be changed at an arbitrary timing based on various information. Further, the control unit 50 can not only change the position of the screen 13 but also open and close it.

Further, in the above embodiment, an example in which the sound insulation system 1 (1A) is arranged so as to face the window 2 is shown, but the present invention is not limited to this, and the sound insulation system 1 (1A) is arranged at an arbitrary place as needed. It is possible.

Further, in the above embodiment, as a method of using the sound insulation system 1 (1A), a method of using the sound insulation system 1 (1A) for the purpose of blocking noise (sound that affects human health and living environment) has been described. The present invention is not limited to this. That is, the sound insulation system 1 (1A) can be used to block not only noise (sound that affects human health and living environment) but also various sounds that need to be sound-insulated (ambient sound). Is. Further, also in the sound insulation system 1A according to the second embodiment, not only noise but also other sounds (ambient sounds) can be detected by the microphone 40, and the position of the screen 13 can be changed based on the detection result.

1 Sound insulation system 10 1st roll screen 11 Winding shaft 13 Screen 14 Weight bar 14a Fixed part 14b Accommodating part 20 2nd roll screen 30 Actuator 40 Microphone 50 Control part

Claims (6)

A first screen and a first roll screen comprising a first take-up shaft around which the first screen is wound.
By changing the winding method of the second screen and the second screen, which is arranged on the side of the first winding shaft, the position of the second screen with respect to the first screen can be changed. A second roll screen with a second take-up shaft around which the second screen is wound so that it can be changed.
Sound insulation system equipped with. The second roll screen is
A weight bar provided at the lower end of the second screen is provided.
The weight bar
It is provided with a suppressing mechanism for suppressing the occurrence of sagging of the second screen when it is grounded.
The sound insulation system according to claim 1. The suppression mechanism
A fixed portion fixed to the lower end of the second screen,
An accommodating portion that accommodates the fixed portion so that the fixed portion can be moved up and down,
Equipped with
The sound insulation system according to claim 2. The second roll screen is
By rotating the second take-up shaft with the weight bar grounded, the second screen can be tilted in the vertical direction.
The sound insulation system according to claim 2 or 3. An actuator that rotationally drives the second take-up shaft and
A control unit that can control the operation of the actuator and
Further equipped,
The sound insulation system according to any one of claims 1 to 4. Further equipped with a detection unit for detecting ambient sound,
The control unit
The operation of the actuator is controlled based on the ambient sound detected by the detection unit.
The sound insulation system according to claim 5.

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