JP2023036510A - Partition system - Google Patents

Abstract

To provide a partition system capable of effectively preventing leakage of sound generated in an internal space to the surrounding.SOLUTION: A partition system includes a partition wall 30 which partitions four sides in a horizontal direction to form an internal space B and has an opening 30a opened upward, and an upper side soundproof part 50 which is constituted of a soundproof material and is provided on the opening 30a of the partition wall 30. The upper side soundproof part 50 includes a first upper side soundproof part 51 having a lower surface extending to the inside of the opening 30a toward the upper part.SELECTED DRAWING: Figure 2

Description

The present invention relates to the technology of partition systems.

Conventionally, the technology of the partition system is publicly known. For example, it is as described in Patent Document 1.

A floor blowing air conditioner (partition system) disclosed in Patent Document 1 includes an air conditioner and a partition. A partition is provided in the office room. The space partitioned by the partition is formed so that the upper part is open. In the floor blowing air conditioner, the warm air from the air conditioner can be supplied to the space partitioned by the partition, and the warm air can be circulated upward to uniform the temperature distribution in the office room.

However, in the floor blowing air conditioner described in Patent Document 1, sound tends to leak outside from the upper portion (opening portion) of the space in the partition.

Japanese Utility Model Laid-Open No. 9-473

The present invention has been made in view of the above circumstances, and the problem to be solved is to provide a partition system that can effectively prevent the sound generated in the interior space from leaking to the surroundings. It is something to do.

The problems to be solved by the present invention are as described above, and the means for solving the problems will now be described.

That is, in claim 1, it is composed of a partition wall that divides the four sides in the horizontal direction to form an internal space and that has an opening that opens upward, and a soundproof material. and an upper soundproof part provided in the opening.

In claim 2, the upper soundproof part includes a first upper soundproof part having a lower surface that extends toward the inner side of the opening as it goes upward.

In claim 3, the first upper soundproof part is provided so as to cover the entire circumference of the opening.

In claim 4, the upper soundproof part includes a second upper soundproof part that is arranged above the first upper soundproof part and covers the opening from above.

In claim 5, the lower surface of the second upper soundproof portion is formed so as to bulge upward.

In claim 6, the second upper soundproof part is formed so as to overlap the entire first upper soundproof part in plan view.

In claim 7, the apparatus further comprises a blowout section for blowing conditioned air into the internal space, and a suction section provided above the upper soundproof section and capable of sucking in the conditioned air blown out from the blowout section. The upper soundproof portion is formed so that the conditioned air from the blowout portion can pass upward.

In an eighth aspect of the present invention, there is further provided an internal corner sound absorbing portion which is made of a sound absorbing material and which is provided at an internal corner portion of the partition wall.

In claim 9, the internal corner sound absorbing portion includes a first internal corner sound absorbing portion formed in the shape of a triangular prism.

In claim 10, the partition wall includes a first wall portion and a second wall portion movable integrally with the chair portion, and the internal corner sound absorbing portion is provided on the second wall portion. In addition, the chair portion is arranged at an internal corner portion of the first wall portion and the second wall portion in a state in which the chair portion is moved into the internal space, and the surface facing the internal space extends from the second wall portion to the interior. It includes a second internal corner sound absorbing portion that is formed in an arc shape that expands toward the space.

According to claim 11, a fan unit is provided on the partition wall to send air toward the internal space.

In claim 12, the fan unit is provided below the partition wall.

In a thirteenth aspect of the present invention, the fan unit further comprises a guide member that includes an air supply side sound absorbing portion made of a sound absorbing material and guides the air from the fan unit.

In claim 14, the air supply side sound absorbing portion includes a projecting portion that is arranged to project from a surface that guides air from the fan unit.

As effects of the present invention, the following effects are obtained.

In claim 1, it is possible to effectively prevent the sound generated in the internal space from leaking to the surroundings.

In claim 2, the sound generated in the internal space can be reflected to the internal space by the first upper soundproof portion.

In claim 3, sound leakage from the opening can be effectively prevented.

In claim 4, it is possible to effectively prevent the sound from leaking from the opening from the internal space, which is particularly likely to leak, with two types of soundproofing parts (the first upper soundproofing part and the second upper soundproofing part). .

In claim 5, the sound generated in the internal space can be reflected to the internal space by the second upper soundproof part that bulges upward. This makes it easier for the user in the internal space to hear the sounds generated in the internal space.

In claim 6, sound leakage from the opening can be effectively prevented, and effective measures against infectious diseases can be taken.

In claim 7, it is possible to effectively prevent the spread of droplets and the like from inside the internal space, and to take effective measures against infectious diseases.

In claim 8, by providing the internal corner sound absorbing portion at the internal corner where the sound pressure of the sound generated in the internal space is high, the sound generated in the internal space can be effectively absorbed.

In the ninth aspect, the first internal corner sound absorbing portion in the shape of a triangular prism can effectively prevent sound leakage from the internal corner portion.

In claim 10, it is possible to smoothly open and close the internal space while preventing sound leakage from the inside corner, thereby improving convenience.

In claim 11, the internal space can be ventilated without blowing air from the underfloor space, and installation is possible even in an area where normal air conditioning is used instead of floor blowing air conditioning.

In claim 12, the internal space can be efficiently ventilated.

In claim 13, the operating sound of the fan unit can be silenced.

In claim 14, the operating sound of the fan unit can be effectively silenced.

BRIEF DESCRIPTION OF THE DRAWINGS The top view which showed typically the indoor space where the partition system which concerns on 1st embodiment of this invention was installed. The perspective view which showed the partition system typically. Plan view as well. Likewise, a plan cross-sectional view. A1-A1 sectional view. (a) A plan view schematically showing how sound leakage is simulated. (b) The figure which showed the result of having simulated sound leakage. (a) The perspective view which showed typically the modification of a moving wall part. (b) Similarly, a side cross-sectional view. The perspective view which showed typically the partition system which concerns on 2nd embodiment. Plan view as well. Likewise, a plan cross-sectional view. A2-A2 sectional view. (a) The top view which showed typically the mode that sound leakage was simulated in the partition system which concerns on 2nd embodiment. (b) The figure which showed the result of having simulated sound leakage. The perspective view which showed typically the 2nd upper side soundproof part divided into front and back. The perspective view which showed typically the partition system which concerns on a modification. The perspective view which showed typically the partition system which concerns on 3rd embodiment. (a) Similarly, rear view. (b) Similarly, rear sectional view. The perspective view which showed the muffling box. The perspective view which showed the internal structure of the muffling box. (a) Rear view showing a muffling box. (b) A3-A3 sectional view. FIG. 4 is a rear cross-sectional view showing how the internal space is ventilated. (a) The top view which showed typically the simulation in the partition system which concerns on 3rd embodiment. (b) The figure which showed the result of the 1st simulation. (c) The figure which showed the result of the second simulation. The back sectional view which showed typically the partition system which concerns on a modification.

Below, the partition system 10 which concerns on 1st embodiment of this invention is demonstrated. In the following description, the front-rear direction, the left-right direction, and the up-down direction are defined based on the arrows in the drawings.

First, an indoor space A in which the partition system 10 is installed will be described with reference to FIG. The indoor space A is a space inside a given building. In this embodiment, an example is shown in which the indoor space A is a space used as an office inside an office building. The indoor space A includes a floor portion 1 , a ceiling portion 2 (see FIG. 5), and wall portions 3 .

The floor part 1 constitutes the floor of the indoor space A. As shown in FIG. An underfloor space is formed below the floor portion 1 . The ceiling part 2 constitutes the ceiling of the indoor space A. As shown in FIG. A ceiling space is formed above the ceiling part 2 . The wall portion 3 constitutes the wall of the indoor space A. As shown in FIG. The walls 3 divide the interior space B of the interior space A into four horizontal directions. The wall portion 3 is provided with appropriate openings (not shown) such as doorways and windows.

Next, the partition system 10 will be described with reference to FIGS. 1 to 5. FIG. The partition system 10 is for partitioning four sides in the horizontal direction and preventing sound leakage to the outside. The partition system 10 includes an air conditioner 20 , a partition wall 30 , an internal corner sound absorbing portion 40 , an upper sound insulating portion 50 , a blowout portion 60 and an intake portion 70 .

The air conditioner 20 shown in FIG. 1 can supply the indoor space A with cooled air (cold air) or heated air (warm air). In this embodiment, the air conditioner 20 is connected to an appropriate outdoor unit (not shown) and arranged in the indoor space A, and is an example of a building multi-air conditioner indoor unit capable of air-conditioning a medium- or large-scale building. showing. The air conditioner 20 of the present embodiment is configured by a wall built-in type air conditioner installed so as to be embedded in the wall portion 3 . The air conditioner 20 incorporates appropriate air blowing means and heat exchanging means. The air conditioner 20 can suck air from the ceiling space of the ceiling section 2 and send conditioned air (cold air or warm air) to the underfloor space of the floor section 1 .

The partition walls 30 shown in FIGS. 2, 4 and 5 are installed in the indoor space A and divide the four sides in the horizontal direction. The partition wall 30 is formed so as to surround a predetermined space in all horizontal directions (perimeter). The partition wall 30 encloses the space so as to open upward. An opening 30 a is thus formed at the upper end of the partition wall 30 . In this embodiment, an example is shown in which the partition wall 30 is formed so as to partition a space that is substantially square in plan view. Below, the space divided by the partition wall 30 is called "internal space B." The front-rear dimension D30 and the left-right dimension L30 (see FIG. 4) of the partition wall 30 in this embodiment are set to 1200 mm.

A plurality of partition walls 30 are installed in the indoor space A (see FIG. 1). The partition wall 30 comprises a first partition wall 31 , a second partition wall 32 and a third partition wall 33 .

The first partition wall 31 partitions the front side of the internal space B (the front side when facing the desk 80 described later). The first partition wall 31 is formed in a plate shape with its thickness direction directed in the front-rear direction. The first partition wall 31 is made of a relatively rigid (hard) material such as gypsum board. As the first partition wall 31, a partition wall used as a general partition can be adopted.

The height dimension H31 of the first partition wall 31 is appropriately set from the viewpoint of suppressing the diffusion of droplets and aerosols from the user seated in the internal space B. For example, the height dimension H31 of the first partition wall 31 can be set to a dimension equal to or greater than the height of the mouth of the seated user (for example, 1200 mm or greater). In this embodiment, an example is shown in which the height H31 of the first partition wall 31 is set to be equal to or higher than the height of the head of the seated user, specifically 1500 mm. Also, the first partition wall 31 is arranged so that the lower end portion is in contact with or close to the upper surface of the floor portion 1 .

The second partition wall 32 partitions the left and right sides of the internal space B. As shown in FIG. The second partition wall 32 is formed in a plate shape with the thickness direction directed in the left-right direction. The second partition wall 32 is formed to have the same height dimension as the height dimension H31 of the first partition wall 31 . The second partition wall 32 is made of a relatively rigid material. As the second partition wall 32, the partition wall 30 used as a general partition can be adopted. The second partition wall 32 is arranged so that its lower end portion is in contact with or close to the upper surface of the floor portion 1 . As shown in FIG. 4 , a pair of second partition walls 32 are provided at positions corresponding to the left and right end sides of the first partition wall 31 . This embodiment shows an example in which the front ends of the pair of second partition walls 32 are arranged so as to abut on the left and right ends of the rear surface of the first partition wall 31 . In this manner, the first partition wall 31 and the second partition wall 32 form a front inside corner portion 30 b at the left front end portion and the right front end portion of the partition wall 30 .

The third partition wall 33 shown in FIGS. 2, 4 and 5 partitions the rear side of the internal space B. As shown in FIG. The third partition wall 33 has a moving wall portion 33a and a chair portion 33b.

The moving wall portion 33a is a plate-shaped member having a thickness direction oriented in the front-rear direction. The moving wall portion 33 a is formed to have the same height dimension as the height dimension H<b>31 of the first partition wall 31 . On the other hand, the lateral dimension of the moving wall portion 33a is set to be shorter than the lateral dimension of the front first partition wall 31 (see FIG. 4). The moving wall portion 33a is made of a material with relatively high rigidity. The moving wall portion 33 a is arranged so that the lower end portion thereof is in contact with or close to the upper surface of the floor portion 1 . Further, the movable wall portion 33a is movably provided to an appropriate position on the floor portion 1 together with a chair portion 33b described later.

A user of the internal space B sits on the chair portion 33b. As shown in FIG. 5, the chair portion 33b includes leg portions 33c, a seat portion 33d, and a backrest portion 33e.

The leg portion 33c is a portion that contacts the floor portion 1 and supports a seat surface portion 33d, which will be described later. Appropriate wheels (not shown) are provided on the leg portion 33c.

The seat surface portion 33d is a portion on which the user sits. The seat surface portion 33d is formed in a substantially rectangular shape in plan view (see FIG. 4). The seat portion 33d is supported by the leg portion 33c.

The backrest portion 33e is a portion that rises upward from the rear end portion of the seat surface portion 33d. The front surface of the moving wall portion 33a is fixed to the rear surface (back surface) of the backrest portion 33e.

The third partition wall 33 can be easily moved on the floor 1 by rolling the wheels of the legs 33c. As shown in FIG. 4, when the third partition wall 33 (strictly speaking, the rear sound absorbing portion 42 described later) is brought into contact with the second partition wall 32, the internal space B is closed. A semi-private room space is formed in which four horizontal directions are partitioned. When the internal space B is closed in this way, a rear inside corner portion 30c is formed by the second partition wall 32 and the third partition wall 33 at the left rear end portion and the right rear end portion of the partition wall 30. be. In addition, the internal space B is opened when the third partition wall 33 (rear sound absorbing portion 42) is separated from the third partition wall 33. As shown in FIG. In this state, the user can enter and leave the internal space B.

As shown in FIGS. 2, 4 and 5, a desk 80 is arranged in the internal space B. As shown in FIGS. Appropriate equipment and fixtures used in the office, such as a personal computer and a telephone, are arranged on the desk 80 . In this embodiment, the internal space B is used as a space (booth) for one person to perform appropriate work (for example, office work).

Further, when the internal space B is closed, the chair portion 33b faces the desk 80. As shown in FIG. The position of the chair portion 33b with respect to the desk 80 is set at a position where the user of the internal space B can preferably perform work using the desk 80 while sitting on the chair portion 33b. By doing so, the internal space B is closed by moving the second partition wall 32 forward as the user sits down. In addition, the internal space B is opened by moving the second partition wall 32 backward so as to pull the chair portion 33b as the user sitting on the chair portion 33b stands up. According to such a configuration, it is possible to open and close the internal space B as the user sits down and stands up, thereby improving convenience. In addition, it is possible to enter and exit the internal space B without providing a separate door or the like on the partition wall 30, so that the structure of the partition wall 30 can be simplified.

The first partition wall 31 and the second partition wall 32 of the partition wall 30 configured as described above include flexible columns such as rubber and plate-like members. are assembled by detachably connecting the With such a configuration, when the partition wall 30 is unnecessary, the first partition wall 31 and the like can be separated into the plate-like member and the pillar, and the first partition wall 31 and the like can be stored compactly.

The internal corner sound absorbing portion 40 is for preventing sound leakage from the internal corner portions of the partition wall 30 (the front internal corner portion 30b and the rear internal corner portion 30c). The internal corner sound absorbing portion 40 includes a front sound absorbing portion 41 and a rear sound absorbing portion 42 .

The front sound absorbing portion 41 shown in FIGS. 2, 4 and 5 is for preventing sound leakage from the front internal corner portion 30b. The front sound absorbing portion 41 is made of a soundproof material. Specifically, the front sound absorbing portion 41 is made of a sound absorbing material having a sound absorbing function of absorbing sound. More specifically, the front sound absorbing portion 41 is made of rock wool, glass wool, or the like. The front sound absorbing portion 41 is formed in a substantially triangular prism shape with the axial direction directed vertically. The front sound absorbing portions 41 are provided at the left and right front internal corner portions 30b (see FIG. 4). The front sound absorbing portion 41 is formed so as to extend from the upper surface of the desk 80 to the upper end portion of the partition wall 30 . The height dimension H41 of the front sound absorbing portion 41 in this embodiment is set to 800 mm.

As shown in FIG. 4, the front sound absorbing portion 41 is formed in the shape of a right-angled triangle in a plan view, and the corner forming the right angle is positioned at the contact portion between the first partition wall 31 and the second partition wall 32. is provided as follows. Thus, the front sound absorbing portion 41 is provided along the front internal corner portion 30b. The front-rear dimension D41 and the left-right dimension L41 of the front sound absorbing portion 41 of this embodiment are set to 100 mm.

The rear sound absorbing portion 42 shown in FIGS. 2, 4 and 5 is for preventing sound leakage from the rear internal corner portion 30c. The rear sound absorbing portion 42 is made of a sound absorbing cushioning material. The rear sound absorbing portion 42 is formed in a substantially columnar shape with the axial direction directed vertically. The outer diameter R42 of the rear sound absorbing portion 42 of this embodiment is set to 200 mm. The rear sound absorbing portion 42 is fixed to both left and right end portions of the third partition wall 33 (moving wall portion 33a). The rear sound absorbing portion 42 is formed so as to extend from the lower end portion to the upper end portion of the third partition wall 33 . The rear sound absorbing portion 42 of the present embodiment projects in the longitudinal direction and the laterally outward direction with respect to the third partition wall 33 by fitting the moving wall portion 33a into the slit 42a formed in the outer peripheral surface. (see FIG. 4). In this way, the front side of the outer peripheral surface of the rear sound absorbing portion 42 (the surface facing the internal space B) is formed so as to bulge forward with respect to the moving wall portion 33a. Further, the lateral projection dimension L42 of the rear sound absorbing portion 42 with respect to the second partition wall 32 in the present embodiment is set to 100 mm.

The outer peripheral surface of the rear sound absorbing portion 42 contacts the second partition wall 32 when the chair portion 33b is moved forward. The internal space B is closed in this manner, and the rear sound absorbing portion 42 is arranged in the rear internal corner portion 30c.

The upper soundproof portion 50 shown in FIGS. 2, 3 and 5 is provided in the opening 30a of the partition wall 30 and is for preventing sound leakage from the opening 30a. The upper soundproof part 50 includes a first upper soundproof part 51 and a second upper soundproof part 52 .

The first upper soundproof part 51 is made of a transparent sound absorbing material. The first upper soundproof portion 51 is provided on the upper surfaces of the first partition wall 31, the second partition wall 32, and the third partition wall 33, respectively. Below, the first upper soundproof part 51 on the first partition wall 31 is called "first upper soundproof part 51A." Also, the first upper soundproof portion 51 on the second partition wall 32 is referred to as "first upper soundproof portion 51B". Further, the first upper soundproof portion 51 on the third partition wall 33 is called "first upper soundproof portion 51C". The first upper soundproof portions 51A to 51C are formed in the same shape as each other except that they are oriented in different directions. Below, the shape of the first upper soundproof portion 51 will be described by taking the first upper soundproof portion 51A as an example.

The first upper soundproof portion 51A is formed in a substantially triangular prism shape with the axial direction oriented in the left-right direction. A left end portion and a right end portion of the first upper soundproof portion 51A are formed so as to extend inward in the left-right direction toward the rear (see FIG. 3). Moreover, as shown in FIG. 5, the first upper soundproof portion 51A is formed in the shape of a right-angled triangle when viewed from the side. The lower surface of the first upper soundproof portion 51A is arranged to face rearward and downward. In this way, the lower surface of the first upper soundproof portion 51A is formed in a straight line in a side view that extends toward the inside of the opening 30a as it goes upward. More specifically, the lower surface of the first upper soundproof portion 51A has a linear shape in a side view that extends upward from the center of the opening 30a toward a straight line L extending upward (in the direction in which the opening 30a faces). formed in Further, the rear upper end portion of the lower surface of the first upper soundproof portion 51A is arranged behind the rear surface (inner surface) of the first partition wall 31 . Thus, the first upper soundproof portion 51A is provided so as to narrow the opening 30a (gradually decrease the opening area) as it goes upward. The front-rear dimension D51 and the height dimension H51 of the first upper soundproof portion 51A of this embodiment are set to 200 mm. The first upper soundproof portion 51A is formed so as to extend from the left end to the right end of the first partition wall 31 .

The first upper soundproof portion 51B on the second partition wall 32 is arranged with its axial direction facing the front-rear direction, and is formed so as to extend from the front end to the rear end of the second partition wall 32. . The first upper soundproof portion 51C on the third partition wall 33 is arranged with the axial direction oriented in the left-right direction, and is formed so as to extend from the left end to the right end of the third partition wall 33 . Thus, the first upper soundproof portion 51 is provided so as to cover the entire circumference of the opening 30a.

Further, as shown in FIG. 3, the left and right first upper soundproof portions 51B are arranged with a space therebetween in the left-right direction. Further, the first upper soundproof portion 51C is arranged with a space therebetween in the front-rear direction with respect to the first upper soundproof portion 51A. In this manner, the first upper soundproof portion 51 is configured to partially block the opening 30a instead of blocking the entire opening 30a.

The second upper soundproof portion 52 shown in FIGS. 2 , 3 and 5 is a member arranged above the first upper soundproof portion 51 . The second upper soundproof part 52 comprises a column member 52a, a horizontal member 52b and a blocking member 52c.

The column member 52a is formed in a quadrangular prism shape with the axial direction directed vertically. The pillar members 52a are placed on the first upper soundproof portion 51 and provided at the four corners of the partition wall 30 in plan view. The height dimension H52a of the column member 52a in this embodiment is set to 200 mm.

The horizontal member 52b is formed in the shape of a quadrangular prism whose axial direction is oriented in the front-rear direction or in the left-right direction. The horizontal member 52b is provided so as to connect the upper ends of the two column members 52a.

The closing member 52c is formed in a substantially dome shape that bulges upward. Also, the closing member 52c is formed in a generally circular shape in plan view (see FIG. 3). The closing member 52c is made of a sound absorbing material. The blocking member 52c is fixed to the horizontal member 52b and overlaps the opening 30a in plan view. Thus, the closing member 52c is provided so as to cover the opening 30a from above. The outer diameter R52c of the closing member 52c of this embodiment is set to 1200 mm. A height dimension H52c of the closing member 52c is set to 200 mm. The closing member 52c has a through hole 52d.

52 d of through-holes are holes which penetrate the closure member 52c up and down. 52 d of through-holes are formed in the center part of the closing member 52c. 52 d of through-holes are formed in planar view substantially circular shape. 52 d of through-holes are arrange|positioned inside the 1st upper side soundproof part 51 by planar view. In this way, the closing member 52c is formed so as to extend from the horizontal member 52b to the inner side of the first upper soundproof portion 51 in the horizontal direction in plan view.

The blowing part 60 shown in FIG. 2 blows out the conditioned air supplied from the air conditioner 20 into the internal space B. As shown in FIG. The blowout part 60 is provided corresponding to the internal space B. As shown in FIG. In other words, the blowout part 60 is provided in each of the internal spaces B so as to be able to blow out the conditioned air from the air conditioner 20 individually. The blowout part 60 is provided in the floor part 1 and communicates between the internal space B and the underfloor space of the floor part 1 .

The suction unit 70 shown in FIG. 5 can suck the conditioned air blown out from the blowing unit 60 . The suction part 70 is provided in the ceiling part 2 and arranged at a position higher than the second upper soundproof part 52 . The suction part 70 communicates between the indoor space A and the ceiling space of the ceiling part 2 .

In the partition system 10 configured as described above, when the internal space B is closed, the partition walls 30 can block sightlines and noises. As a result, it is possible to construct an environment in which the users of the internal space B can concentrate on their work. Also, the opening 30a of the partition wall 30 can ensure air permeability.

Here, the user of the internal space B may perform work that produces sound in the internal space B, such as a WEB conference using a personal computer or a call using a telephone. If the internal space B is blocked during the work, it is possible to make it difficult for the sound generated in the internal space B (user's voice, etc.) to leak to the outside of the internal space B. In addition, the partition system 10 of the present embodiment is provided with the internal corner sound absorbing portion 40 and the upper soundproof portion 50, thereby effectively preventing the sound generated in the internal space B from leaking to the outside.

Specifically, the sound generated in the internal space B is less likely to leak to the outside when the internal space B is closed, but at specific locations such as the internal corners and the opening 30a, the sound generated in the internal space B is less likely to leak to the outside than at other locations. Easy to leak outside. As shown in FIG. 4, in this embodiment, a front sound absorbing portion 41 and a rear sound absorbing portion 42 are provided in the front internal corner portion 30b and the rear internal corner portion 30c, respectively. As a result, sound can be absorbed by the front inside corner portion 30b and the like, and sound leakage from the inside corner portion can be prevented.

In particular, in this embodiment, by providing the substantially triangular prism-shaped front sound absorbing portion 41 along the front internal corner portion 30b, the front internal corner portion 30b is filled with a sound absorbing material to effectively reduce the sound generated in the internal space B. can absorb sound.

Further, in this embodiment, the rear sound absorbing portion 42 that moves integrally with the chair portion 33b is provided so as to protrude forward with respect to the moving wall portion 33a. As a result, when the rear end portion of the second partition wall 32 and the rear sound absorbing portion 42 come into contact when the chair portion 33b is moved forward to block the internal space B, the outer circumference of the rear sound absorbing portion 42 The chair portion 33b can be slid laterally along the shape of the surface. By guiding the chair portion 33 b with the outer peripheral surface of the rear sound absorbing portion 42 in this manner, the chair portion 33 b is less likely to get caught on the second partition wall 32 . In this way, the outer peripheral surface of the rear sound absorbing portion 42 moves the third partition wall 33 to a predetermined position (the position where the rear sound absorbing portion 42 and the second partition wall 32 abut as shown in FIG. 3). It becomes a guide surface that can be guided.

Further, when sound generated in the internal space B travels upward, the sound goes out of the internal space B through the opening 30a. Part of the sound reaches the lower surface of the first upper soundproof portion 51 . As a result, sound can be absorbed by the first upper soundproof portion 51, and sound leakage from the opening 30a can be prevented. Further, the sound reaching the lower surface of the first upper soundproof portion 51 is not entirely absorbed by the first upper soundproof portion 51 , but part of the sound is reflected by the lower surface of the first upper soundproof portion 51 .

In this embodiment, the lower surface of the first upper soundproof portion 51 is an inclined surface. As a result, part of the sound reaching the lower surface of the first upper soundproof portion 51 can be reflected toward the internal space B. This makes it easier for the user in the internal space B to hear the sound generated in the internal space B (for example, the user's own voice in the WEB conference). Accompanying this, the sound generated in the internal space B can be reduced. In this manner, the first upper soundproof portion 51 can effectively prevent sound leakage from the opening 30a by sound absorption and reflection.

Moreover, the sound generated in the internal space B may pass through the first upper soundproof portion 51 and go further upward. In this embodiment, a second upper soundproof portion 52 is provided above the first upper soundproof portion 51 . Thereby, the sound passing through the first upper soundproof portion 51 can be absorbed by the closing member 52 c of the second upper soundproof portion 52 . In this way, in the present embodiment, two types of soundproofing portions (the first upper soundproofing portion 51 and the second upper soundproofing portion 52) effectively provide soundproofing at the opening 30a where sound leakage is particularly likely to occur in the internal space B. As a result, sound leakage from the opening 30a can be effectively prevented.

Further, all of the sound reaching the blocking member 52c of the second upper soundproof portion 52 is not absorbed by the second upper soundproof portion 52, but part of the sound is reflected by the inner surface of the blocking member 52c. In this embodiment, the closing member 52c is formed in a substantially dome shape, and the inner surface (lower surface) of the closing member 52c is formed so as to bulge upward. As a result, sound can be reflected from the blocking member 52c toward the internal space B, and the user in the internal space B can easily hear the sound generated in the internal space B. Thus, in this embodiment, the soundproofing function of the closing member 52c can be enhanced by sound absorption and reflection.

Next, results of simulating sound leakage will be described with reference to FIG.

In this simulation, a partition wall 30 is provided so as to be adjacent to the left and right, and when a sound of 70 dB is generated in the right interior space B (noise generation point P1), the left interior space B (adjacent sound receiving point P2) was calculated. In addition, in this simulation, comparative examples 1 to 3 were created, and how much difference in sound pressure level was compared with the configuration of this embodiment was evaluated. A specific description will be given below.

"Comparative Example 1" shown in FIG. 6B shows the result of simulation when the front sound absorbing portion 41, the first upper sound insulating portion 51, and the second upper sound insulating portion 52 are not provided. In "Comparative Example 1", the sound pressure level at the adjacent sound receiving point P2 was 47.1 db.

“Comparative Example 2” shown in FIG. 6B shows the result of a simulation in which the front sound absorbing portion 41 is added to the configuration of “Comparative Example 1”. In "Comparative Example 2", the sound pressure level at the adjacent seat sound receiving point P2 was 42 db. Thus, it can be seen that sound leakage from the internal space B can be suppressed by providing the front sound absorbing portion 41 .

"Comparative Example 3" shown in FIG. 6B shows the result of a simulation in which the first upper soundproof portion 51 is added to the configuration of "Comparative Example 2". In "Comparative Example 3", the sound pressure level at the adjacent sound receiving point P2 was 40.3 db. By comparing “Comparative Example 2” and “Comparative Example 3”, it can be seen that sound leakage from the internal space B can be suppressed by providing the first upper soundproof portion 51 .

The "present embodiment" shown in FIG. 6(b) shows the result of simulation when all of the front sound absorbing portion 41, the first upper sound insulating portion 51, and the second upper sound insulating portion 52 are provided. Comparing the "present embodiment" with the "comparative example 3", the provision of the second upper soundproof portion 52 lowered the sound pressure level at the adjacent seat sound receiving point P2 from 40.3 db to 35 db (no sound leakage). was suppressed).

Moreover, according to this simulation, in the "present embodiment" shown in FIG. It was found that Therefore, in the partition system 10 of the present embodiment, even if a user speaks out in the internal space B (web conference, phone call, etc.), it is difficult for people outside to hear the user's voice. can be suppressed.

Next, the state of air conditioning by the partition system 10 will be described.

The air conditioner 20 shown in FIG. 1 delivers conditioned air. The conditioned air is supplied to the internal space B via the blowout section 60 shown in FIG. In this way, task-ambient air conditioning can be achieved in the indoor space A by locally air-conditioning the internal space B via the blowout unit 60 .

The air in the internal space B passes upward through the opening 30a, the first upper soundproof portion 51 and the second upper soundproof portion 52 (through holes 52d), and enters the ceiling space via the suction portion 70 shown in FIG. and sucked into the air conditioner 20 . The air is cleaned by a filter (not shown) of the air conditioner 20 . The air conditioner 20 air-conditions and mixes the air that has been cleaned and air-conditioned in this way, or partially air-conditioned and mixed fresh outside air, or air-conditions all of the fresh air that has been air-conditioned, through the blowout section 60. The internal space B is supplied. The air conditioner 20 circulates the air in the internal space B in this way.

As described above, the conditioned air is blown into the internal space B partitioned by the partition wall 30 and sucked by the suction unit 70 provided in the ceiling unit 2, so that the air rises from the internal space B toward the suction unit 70 side. An air current (updraft) is generated. At this time, the partition wall 30 that partitions the internal space B serves as a flow path that stabilizes the rising air current. By returning the air in the internal space B to the air conditioner 20 by such an updraft, it is possible to effectively prevent the droplets and the like from spreading in the horizontal direction from the internal space B, without using a mask or the like. In both cases, it is possible to take effective measures against infectious diseases.

Further, in this embodiment, the closing member 52c is spaced upward from the first upper soundproof portion 51 by the column member 52a and the horizontal member 52b. By adopting such a configuration, it is possible to release the ascending air current from between the column members 52a. Thereby, the air permeability of the internal space B can be improved.

As described above, the partition system 10 according to the present embodiment includes the partition wall 30 that divides the four sides in the horizontal direction to form the internal space B, and the partition wall 30 in which the opening 30a that opens upward is formed, the soundproof material ( and an upper soundproof portion 50 that is made of a sound absorbing material in this embodiment and that is provided in the opening 30a of the partition wall 30 .

In this manner, by providing the upper soundproof portion 50 in the opening 30a where sound easily leaks from the internal space B, it is possible to effectively prevent the sound generated in the internal space B from leaking to the surroundings. As a result, even if a web conference or the like is held in the internal space B, it is less likely that the surroundings will be disturbed.

Further, the upper soundproof portion 50 includes a first upper soundproof portion 51 having a lower surface extending toward the inside of the opening 30a as it goes upward.

With this configuration, the sound generated in the internal space B can be reflected to the internal space B by the lower surface of the first upper soundproof portion 51 . This makes it easier for the user in the internal space B to hear the sound generated in the internal space B.

Further, the first upper soundproof portion 51 is provided so as to cover the entire circumference of the opening portion 30a.

By configuring in this way, a soundproof function can be imparted to the entire periphery of the opening 30a, and sound leakage from the opening 30a can be effectively prevented.

Further, the upper soundproof portion 50 includes a second upper soundproof portion 52 arranged above the first upper soundproof portion 51 and covering the opening 30a from above.

With this configuration, the sound leakage from the opening 30a, which is particularly prone to leak from the internal space B, is effectively prevented by the two types of soundproofing portions (the first upper soundproofing portion 51 and the second upper soundproofing portion 52). can be prevented.

Further, the lower surface of the second upper soundproof portion 52 is formed so as to bulge upward.

With this configuration, the sound generated in the internal space B can be reflected to the internal space B by the lower surface of the second upper soundproof portion 52 . This makes it easier for the user in the internal space B to hear the sound generated in the internal space B.

In addition, a blowing part 60 for blowing conditioned air into the internal space B, and a suction part 70 provided above the upper soundproof part 50 and sucking the conditioned air blown out from the blowing part 60, The upper soundproof portion 50 is formed so that the conditioned air from the blowout portion 60 can pass upward.

By configuring in this way, it is possible to take measures against infectious diseases.

In addition, an internal corner sound absorbing portion 40 made of a sound absorbing material and provided at the internal corner portion of the partition wall 30 (the front internal corner portion 30b and the rear internal corner portion 30c in this embodiment) is further provided. .

Thus, by providing the internal corner sound absorbing portion 40 at the internal corner where the sound pressure of the sound generated in the internal space B is high, the sound generated in the internal space B can be effectively absorbed.

The internal corner sound absorbing portion 40 includes a first internal corner sound absorbing portion (front side sound absorbing portion 41) formed in a triangular prism shape.

With this configuration, it is possible to effectively prevent sound leakage from the inside corner.

The partition wall 30 includes a first wall portion (first partition wall 31 and second partition wall 32), and a second wall portion (third partition wall 33) movable integrally with the chair portion 33b. ), and the internal corner sound absorbing portion 40 is provided in the second wall portion, and in a state where the chair portion 33b is moved into the internal space B, the first wall portion and the second wall portion A second internal corner sound absorbing portion arranged in an internal corner portion (rear internal corner portion 30c) of the second internal corner sound absorbing portion, and a surface facing the internal space B is formed in an arc shape that bulges from the second wall portion toward the internal space B (rear side sound absorbing portion 42) is included.

By configuring in this way, the internal space B can be opened and closed as the user sits down and stands up. Further, when closing the internal space B, the second internal corner sound absorbing portion is less likely to get caught between the first wall portion and the second wall portion. As a result, it is possible to smoothly open and close the internal space B while preventing sound leakage from the inside corner, thereby improving convenience.

The front side sound absorbing portion 41 according to this embodiment is an embodiment of the first internal corner sound absorbing portion according to the present invention.
Moreover, the first partition wall 31 and the second partition wall 32 according to this embodiment are an embodiment of the first wall portion according to the present invention.
Also, the third partition wall 33 according to this embodiment is an embodiment of the second wall portion according to the present invention.
Further, the rear side sound absorbing portion 42 according to this embodiment is an embodiment of the second internal corner sound absorbing portion according to the present invention.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above configurations, and various modifications are possible within the scope of the invention described in the claims.

For example, in the present embodiment, the moving wall portion 33a that is movably provided partitions the entire rear side of the internal space B, but the configuration is not limited to this. For example, the moving wall portion 33a may constitute a part of the partition wall 30 (the third partition wall 33) that partitions the entire rear side of the internal space B. Further, the moving wall portion 33a is not limited to a plate shape with the thickness direction directed in the front-rear direction (a linear plate shape in a plan view), and may be various types capable of partitioning at least a part of the rear side of the internal space B. shape can be adopted.

In addition, in the present embodiment, the third partition wall 33 of the partition walls 30 is provided with the movable wall portion 33a and the chair portion 33b, and is configured to be movable, but is not limited to such a configuration. . For example, instead of the third partition wall 33, a partition wall 30 used as a partition, which is generally similar to the second partition wall 32, may be installed. In this case, existing chairs are placed in the internal space B. Moreover, in this case, a configuration in which a door used as an entrance and exit is provided at an appropriate position of the partition wall 30 can be employed. In this case, the substantially triangular prism-shaped rear sound absorbing portion 42 may be arranged in the rear internal corner portion 30c. It should be noted that the partition wall 30 used as the partition may be manually moved to enter/exit the internal space B without providing the door.

Moreover, although the partition system 10 is installed in the office, the place where the partition system 10 is installed is not particularly limited. The partition system 10 may be provided in restaurants, hospitals, and the like, for example.

In the partition system 10, air-conditioning air is supplied to the internal space B by the blowout part 60, but the blowout part 60 does not necessarily need to be provided as long as the air permeability of the internal space B can be ensured. For example, as shown in FIG. 7, a gap 33f may be provided in the lower portion of the moving wall portion 33a to ensure air permeability.

In addition, although the partition wall 30 is formed in a rectangular shape in plan view, the shape of the partition wall 30 in plan view can be arbitrarily changed as long as it divides four sides in the horizontal direction. For example, the partition wall 30 may be formed in a substantially triangular shape in plan view or a substantially circular shape in plan view.

Further, the shape and direction of the opening 30a are not limited as long as they open upward. It should be noted that the above-mentioned "upward" includes not only the vertically upward direction, but also a direction inclined with respect to the vertically upward direction. Therefore, the opening 30a may be opened obliquely upward, for example. The inside and outside of the opening 30a are defined based on the direction in which the opening 30a opens (the axial direction of the opening 30a).

Further, although the front sound absorbing portion 41 is formed in a substantially triangular prism shape, the shape of the front sound absorbing portion 41 is not particularly limited, and can be arbitrarily changed. The front sound absorbing portion 41 is provided at the corners of the first partition wall 31 and the second partition wall 32 (see FIG. 4), but the arrangement of the front sound absorbing portion 41 is not limited to this. do not have. For example, the front sound absorbing part 41 may be arranged so as to be embedded in recesses formed in both left and right end portions of the first partition wall 31 .

Further, although the rear sound absorbing portion 42 is formed in a substantially columnar shape, the shape of the rear sound absorbing portion 42 is not particularly limited and can be arbitrarily changed. It is desirable that the rear sound absorbing portion 42 has a guide surface capable of guiding the third partition wall 33 to a predetermined position as in the present embodiment. The guide surface is formed, for example, in an arc shape in which the surface facing the front side (internal space B side) bulges forward. With such a configuration, when the rear end portion of the second partition wall 32 and the rear sound absorbing portion 42 come into contact with each other, the chair portion 33b is placed sideways along the outer peripheral surface (guide surface) of the rear sound absorbing portion 42. It can be slid, and the chair part 33b is less likely to get caught on the second partition wall 32.例文帳に追加

Moreover, although the first upper soundproof portion 51 is formed in a substantially triangular prism shape, the shape of the first upper soundproof portion 51 is not particularly limited and can be arbitrarily changed. Also, although the first upper soundproof part 51 is provided on the upper surface of the partition wall 30, the arrangement of the first upper soundproof part 51 can be arbitrarily changed as long as it is provided in the opening 30a. . For example, the first upper soundproof portion 51 can be provided on the inner surface of the partition wall 30 (opening 30a).

Further, although the first upper soundproof portion 51 is provided so as to cover the entire circumference of the opening 30a, it is not limited to this, and may be provided, for example, in a part of the opening 30a. good too.

Also, although the closing member 52c of the second upper soundproof portion 52 is formed in a substantially dome shape, the shape of the closing member 52c is not particularly limited and can be arbitrarily changed. For example, the closing member 52c may be formed in a substantially flat plate shape.

In addition, although the closing member 52c is arranged above the first upper soundproof portion 51 with a space therebetween, the positional relationship in the vertical direction with the first upper soundproof portion 51 is not limited to this. It may be arranged above the first upper soundproof portion 51 without any gap.

Moreover, the partition system 10 may be provided with at least one soundproof material in the opening 30a. That is, the partition system 10 includes at least either the first upper soundproof portion 51 or the second upper soundproof portion 52 among the front soundproof portion 41, the rear soundproof portion 42, the first upper soundproof portion 51, and the second upper soundproof portion 52. It is sufficient if it is equipped with

In addition, in the present embodiment, a sound absorbing material was exemplified as an example of a sound insulating material that constitutes the upper sound insulating part 50, but the sound insulating material of the present invention is not limited to this, and the material having a sound insulating function (sound insulating material) Any material can be selected from The material having a soundproofing function includes not only the sound absorbing material as in the present embodiment, but also a sound insulating material having a sound insulating function of blocking sound. Also, the first upper soundproof portion 51 and the like do not necessarily have to be made of the same kind of material (sound absorbing material, sound insulating material, etc.), and may be made of different kinds of material.

Next, a partition system 110 according to a second embodiment will be described with reference to FIGS. 8 to 11. FIG.

In addition, below, the same code|symbol as 1st embodiment is attached|subjected about the member comprised similarly to the partition system 10 which concerns on 1st embodiment, and the description is abbreviate|omitted.

A partition system 110 according to the second embodiment includes an air conditioner 20 , a partition wall 130 , an internal corner sound absorbing portion 40 , an upper sound insulating portion 150 , a blowout portion 60 and a suction portion 70 .

The partition wall 130 shown in FIGS. 8 and 10 comprises a first partition wall 31 , a second partition wall 132 and a third partition wall 133 . The second partition wall 132 is formed to have a shorter front-to-rear dimension than the second partition wall 32 of the first embodiment. The second partition wall 132 of the present embodiment is formed so as to be approximately the same as the front-to-rear dimension of the desk 80 . In this way, the second partition wall 132 is configured to partition the left and right sides of the internal space B from the front end portion to the front and back halfway portion (periphery of the desk 80).

The third partition wall 133 has a moving wall portion 133a and a chair portion 33b. The moving wall portion 133a is formed in a generally U-shape in plan view with the opening directed forward. A left front end portion and a right front end portion of the moving wall portion 133a are formed so as to be able to abut on the rear end portions of the left and right second partition walls 132 . Further, the moving wall portion 133a can maintain a state of contact with the second partition wall 132 by a magnet or the like. Thus, the moving wall portion 133a is configured to partition the periphery of the chair portion 33b. The moving wall portion 133a is made of a material having elasticity and sound absorbing functions. The moving wall portion 133a of the present embodiment is made of urethane rubber.

The upper soundproof part 150 shown in FIGS. 8, 9 and 11 comprises a first upper soundproof part 151 and a second upper soundproof part 152 .

The first upper soundproof part 151 is made of a transparent sound absorbing material. The first upper soundproof part 151 is formed in a substantially triangular prism shape, and is provided on the upper surfaces of the first partition wall 31, the second partition wall 132, and the third partition wall 133, respectively. Thus, the first upper soundproof portion 151 is divided into front and rear portions on the desk 80 side and the chair portion 33b side. The divided front and rear first upper soundproof portions 151 abut each other when the second partition wall 132 and the third partition wall 133 come into contact (see FIGS. 9 and 11).

The second upper soundproof part 152 shown in FIGS. 8, 9 and 11 comprises a column member 152a and a closing member 152c.

The column member 152a is formed in a quadrangular prism shape with the axial direction directed vertically. Regardless of the positional relationship between the second partition wall 132 and the third partition wall 133 (regardless of the separated state shown in FIG. 8 and the abutted state shown in FIG. 9), the column member 152a can be closed by the closing member 152c. A plurality of them are provided at intervals in the front-rear direction and the left-right direction so that they can be supported.

The closing member 152c is made of a sound absorbing material. The blocking member 152c is formed in a substantially truncated quadrangular pyramid shape with its axial direction oriented in the vertical direction and shrinking upward. The longitudinal dimension and lateral dimension of the lower end portion of the closing member 152c are set to substantially the same dimension as the longitudinal dimension D30 and lateral dimension L30 of the partition wall 30 (see FIG. 4). Four corners of the closing member 152c are placed on the pillar member 152a. In this way, the second upper soundproof part 152 is arranged with a space above the first upper soundproof part 151 while being aligned with the first upper soundproof part 151 in the horizontal direction.

The inner surface (lower surface) of the closing member 152c is formed in a straight line in a side view that extends upward toward the center of the closing member 152c. That is, the inner surface of the closing member 152c becomes an inclined surface that is inclined with respect to the horizontal direction. The inclination angle A152 of the inner surface of the closing member 152c of this embodiment is formed to be substantially the same as the inclination angle A151 of the lower surface of the first upper soundproof portion 151 . Also, the width of the inner surface of the closing member 152c (the length along the direction of inclination) is formed to be longer than the lower surface of the first upper soundproof portion 151 . In this way, the closing member 152c is formed to extend inside the first upper soundproof portion 151 in plan view (see FIG. 9). Also, the closing member 152c is arranged so as to overlap the entire first upper soundproof portion 151 in plan view (see FIG. 9). The closing member 152c has a through hole 152d.

The through hole 152d is a hole vertically penetrating the closing member 152c. 152 d of through-holes are formed in the center part of the closing member 152c. 152 d of through-holes are formed in planar view substantially square shape.

In the second embodiment, the closing member 152c is an inclined surface. Even with such a configuration, like the blocking member 52c of the first embodiment, part of the sound reaching the inner surface of the blocking member 152c from the internal space B can be reflected toward the internal space B. can. This makes it easier for the user in the internal space B to hear the sound generated in the internal space B.

Further, in the second embodiment, the inner surface of the closing member 152c can guide the droplet nucleus airflow flowing upward from the internal space B toward the through hole 152d of the closing member 152c. The droplet nucleus airflow floats near the ceiling portion 2 (ceiling surface) due to the Coanda effect and reaches the suction portion 70 (see FIG. 5) provided in the ceiling portion 2 . In this way, the blocking member 152c can prevent the droplet nucleus airflow from descending to the surroundings of the internal space B, so that it is possible to effectively take measures against infectious diseases.

Moreover, as shown in FIG. 9, the closing member 152c of the second embodiment overlaps with the entire first upper soundproof portion 151 in plan view. With such a configuration, the blocking member 152c can increase (maximize) the overlapping area with the first upper soundproof portion 151 in plan view. As a result, it is possible to effectively prevent sound leakage from the opening 30a, which is particularly prone to sound leakage in the internal space B, and effectively prevent sound leakage from the opening 30a. In addition, by increasing the area of the blocking member 152c that overlaps with the first upper soundproof portion 151 in a plan view, it becomes easier to guide the droplet nucleus airflow to the through hole 152d (it becomes difficult for the droplet nucleus airflow to escape in the horizontal direction). , Effective infection control measures can be taken.

Further, as shown in FIGS. 8 and 10, in the second embodiment, the front-to-rear dimension of the second partition wall 132 is made shorter than in the first embodiment, and only the periphery of the desk 80 has a relatively rigid second partition wall. are partitioned by a partition wall 132 of . As a result, the second partition wall 132 is less likely to protrude rearward from the desk 80 , and external force is less likely to be applied to the second partition wall 132 . For example, it becomes difficult for users to collide with the second partition wall 132 . Further, even if an external force is applied to the second partition wall 132, the desk 80 can receive the external force. This can prevent the second partition wall 132 from being damaged.

In addition, since the moving wall portion 133a is made of urethane rubber (flexible material), the moving wall portion 133a is less likely to be caught by other members when the chair portion 33b is moved, thereby making it easier to move the chair portion 33b. . In addition, since the sound generated in the internal space B can be absorbed by the moving wall portion 133a (urethane rubber), sound leakage from the rear internal corner portion 30c is prevented without providing a separate sound absorbing material in the rear internal corner portion 30c. can do.

Next, with reference to FIG. 12, the result of simulating sound leakage in the partition system 110 according to the second embodiment will be described.

As shown in FIG. 12(a), in this simulation, a total of four partition walls 130 were provided so as to be adjacent in the front-rear direction and the left-right direction. In addition, in this simulation, the internal corner sound absorbing portion 40 of the second embodiment described above is provided in all the partition walls 130, the upper soundproof portion 150 is provided in all the openings 30a, and the internal space B on the right front side (noise generation The sound pressure level (db) in the other internal space B was calculated when a sound of 70 db was generated at the point P11).

As shown in FIG. 12, in this simulation, the sound pressure level in the left front internal space B (adjacent seat sound receiving point P12) adjacent to the left with respect to the right front internal space B (noise generation point P11) is It was 33.4db. Further, the sound pressure level in the left front internal space B (adjacent seat sound receiving point P13) rearwardly adjacent to the right front internal space B was 26.2 db.

As is clear from this simulation, the partition system 110 according to the second embodiment can effectively prevent sound leakage in both the front-rear direction and the left-right direction adjacent internal space B.

As described above, the second upper soundproof portion 152 according to the present embodiment is formed so as to overlap the entire first upper soundproof portion 151 in plan view.

By configuring in this way, sound leakage from the opening 30a can be effectively prevented, and effective measures against infectious diseases can be taken.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above configurations, and various modifications are possible within the scope of the invention described in the claims.

For example, the inclination angle A152 of the inner surface of the second upper soundproof portion 152 is substantially the same as the inclination angle A151 of the lower surface of the first upper soundproof portion 151, but it is not limited to this. That is, the inclination angle A152 of the second upper soundproof portion 152 may be smaller than the inclination angle A151 of the first upper soundproof portion 151, or may be larger than the inclination angle A151. Moreover, in any case, the second upper soundproof portion 152 is desirably formed so that the through hole 152d is located inside the first upper soundproof portion 151 . Therefore, when the inclination angle A152 of the second upper soundproof portion 152 is larger than the inclination angle A151 of the first upper soundproof portion 151, the width of the inner surface (the length along the direction of inclination) of the first upper soundproof portion 151 is It is desirable to make it longer than the lower surface.

Further, although the moving wall portion 133a is made of urethane rubber, the material of which the moving wall portion 133a is made is not particularly limited. The moving wall portion 133a is desirably made of a material having elasticity and sound absorbing function. As a result, the movable wall portion 133a can smoothly move the chair portion 33b, and can effectively absorb sound at the internal corner portion without disposing a separate sound absorbing material.

Further, in the second embodiment, of the first upper soundproof portion 151 and the second upper soundproof portion 152, only the first upper soundproof portion 151 is divided into the front and rear, but it is not limited to this. For example, as shown in FIG. 13, each of the first upper soundproof part 151 and the second upper soundproof part 152 may be divided into front and rear parts on the desk 80 side and the chair part 33b side. With such a configuration, the chair portion 33 b can be moved while the second upper soundproof portion 152 is placed on the first upper soundproof portion 151 . In addition, by dividing the second upper soundproof portion 152 into the front and rear, the second upper soundproof portion 152 is prevented from protruding toward the passage side (between the moving wall portion 133a and the second partition wall 132 in the front-rear direction). be able to. With such a configuration, it is possible to eliminate the risk of damage to the second upper soundproof portion 152, such as when the user touches the projecting portion of the second upper soundproof portion 152. FIG.

In addition, in the second embodiment, the upper soundproof portion 150 is arranged above the internal corner soundabsorbing portion 40 (see FIG. 11). It is not limited and can be changed arbitrarily. FIG. 14 is a diagram showing a partition system 210 according to a modification in which the arrangement of the internal corner sound absorbing portion 40 and the upper soundproof portion 150 is changed. The configuration of the partition system 210 according to the modification will be described below.

The partition system 210 includes a partition wall 230, an internal corner sound absorbing portion 240, an upper sound insulating portion 250, and the like.

The partition wall 230 includes wall portions 231 to 234 formed in a plate shape. The partition wall 230 according to the modification is formed to be higher than the partition wall 130 (see FIG. 11) according to the second embodiment. In addition, the partition wall 230 is appropriately provided with an entrance (such as a door) for users to enter and exit. In the partition system 210 according to the modification, the partition walls 230 (wall portions 231 to 234) form an internal space B (semi-private room space) partitioned in the front-back direction and the left-right direction. A desk 80 is arranged on the front side of the internal space B. As shown in FIG.

The internal corner sound absorbing portion 240 is formed in a substantially triangular prism shape and provided at each of the four corners (internal corner portions) of the partition wall 230 . The front internal corner sound absorbing portion 240 is formed to extend from the upper surface of the desk 80 to the upper end portion of the partition wall 230 . The rear internal corner sound absorbing part 240 is formed to extend from the floor 1 of the building to the upper end of the partition wall 230 .

The upper soundproof part 250 includes a first upper soundproof part 251 and a second upper soundproof part 252 .

The first upper soundproof part 251 is formed in substantially the same shape as the closing member 152c (see FIG. 8) according to the second embodiment. Specifically, the first upper soundproof portion 251 is formed in a substantially quadrangular truncated pyramid shape with its axial direction oriented in the vertical direction and shrinking upward. Also, the inner surface (lower surface) of the first upper soundproof portion 251 forms an inclined surface that is inclined with respect to the horizontal direction (see the closing member 152c shown in FIG. 11). A lower end portion of the first upper soundproof portion 251 is appropriately fixed to the inner surface of the partition wall 230 and the internal corner sound absorbing portion 240 .

The second upper soundproof part 252 is formed in a substantially quadrangular truncated pyramid shape that is one size smaller than the first upper soundproof part 251 . The second upper soundproof part 252 is arranged so as to be stacked above the first upper soundproof part 251 .

As described above, in the partition system 210 according to the modification, the lower end portion of the first upper soundproof portion 251 is fixed to the inner surface of the partition wall 230 and the internal corner sound absorbing portion 240 . Thus, in the partition system 210 according to the modification, the first upper soundproof portion 251 can be arranged with no space between the partition wall 230 and the internal corner sound absorbing portion 240, and sound leakage can be effectively prevented. . The partition system 210 can also make it easier for the inner surface of the first upper soundproof portion 251 to reflect upward sound from the interior space B. As shown in FIG.

A partition system 310 according to the third embodiment will be described below with reference to FIGS. 15 to 20. FIG.

In addition, below, about the member comprised similarly to 1st embodiment, the same code|symbol as 1st embodiment is attached|subjected, and the description is abbreviate|omitted.

As shown in FIGS. 15 and 16 , the partition system 310 includes an air conditioner 320 , a partition wall 330 , an internal corner sound absorbing section 340 , a soundproof chamber 350 , a fan unit 360 and a sound deadening box 370 .

The air conditioner 320 shown in FIG. 16 is configured to blow conditioned air directly into the indoor space A without going through the underfloor space. The air conditioner 320 is installed, for example, on the ceiling 2 or the like. The air conditioner 320 can suck the air in the indoor space A from the ceiling portion 2 and blow the conditioned air from the ceiling portion 2 . In addition, the arrangement position of the air conditioner 320 is not limited to the ceiling part 2, and can be changed arbitrarily.

Partition wall 330 shown in FIGS.

The front wall portion 331, the left wall portion 332, the right wall portion 333, and the rear wall portion 334 partition four sides in the horizontal direction. The front wall portion 331, the left wall portion 332, the right wall portion 333, and the rear wall portion 334 are configured by substantially plate-shaped members. As shown in FIG. 16(b), a through hole 333a is formed through the plate surface near the lower end of the right wall portion 333. As shown in FIG. As shown in FIG. 16(a), the rear wall portion 334 is provided with a door 334a for the user to enter and exit the internal space B. As shown in FIG. The configuration for entering and exiting the internal space B is not particularly limited, and can be arbitrarily changed. For example, the partition wall 330 can be moved in and out by a movable wall portion (see third partition walls 33 and 133 shown in FIGS. 2 and 8) as in the first and second embodiments. good too.

The ceiling part 335 shown in FIGS. 15 and 16 is for blocking the upper part of the internal space B. As shown in FIG. The ceiling part 335 is configured by a substantially plate-like member with its plate surface facing up and down. An opening 335 a is formed in the central portion of the ceiling portion 335 so as to vertically penetrate the plate surface.

The internal corner sound absorbing portion 340 is formed in a substantially triangular prism shape with the axial direction directed in the vertical direction, and is provided at each of the four corners (internal corner portions) of the partition wall 330 . The front internal corner sound absorbing portion 340 is formed so as to extend from the upper surface of the desk 80 to the lower surface of the ceiling portion 335 . The rear internal corner sound absorbing portion 340 is formed so as to extend from the floor portion 1 of the building to the lower surface of the ceiling portion 335 .

The soundproof chamber 350 is for suppressing sound leakage from the opening 335a. The soundproof chamber 350 is formed in a substantially hollow box shape and placed on the upper surface of the ceiling portion 335 . The soundproof chamber 350 communicates with the opening 335a and is configured to discharge the air that has flowed in through the opening 335a to the outside of the internal space B (indoor space A). For example, the soundproof chamber 350 is provided with slits so that air can be discharged and sound leakage can be suppressed at the same time. Note that the configuration of the soundproof chamber 350 is not particularly limited. The soundproof chamber 350 may be configured by attaching a soundproof material to the inner surface of the soundproof chamber 350, for example.

The fan unit 360 is for ventilating the internal space B. FIG. The fan unit 360 is provided near the lower end of the outer surface of the right wall portion 333 and is arranged to the right of the through hole 333a. The fan unit 360 is configured to suck air in the indoor space A and send it out toward the through hole 333a (internal space B). The fan unit 360 has a filter 361 .

The filter 361 is for removing dirt, dust, etc. in the air. Filter 361 is provided inside fan unit 360 . The filter 361 of this embodiment is configured by a HEPA filter (High Efficiency Particulate Air Filter).

The muffler box 370 guides the air from the fan unit 360 and muffles the noise of the fan unit 360 . The sound deadening box 370 is arranged to face the fan unit 360 with the right wall portion 333 interposed therebetween. As shown in FIGS. 17 to 19, the sound deadening box 370 includes a base 371, a lower plate portion 372, an upper plate portion 373, a mounting portion 374, a first upper sound absorbing portion 375, a second upper sound absorbing portion 376, and a partition portion 377. , a right sound absorbing portion 378 and a left sound absorbing portion 379 . 15, 16, and 20 to 22, the muffling box 370 is illustrated in a simplified manner.

The base 371 is a base portion of the muffling box 370 . The base 371 is formed in a plate shape with the thickness direction directed vertically. The base 371 is placed on the floor 1 (see FIG. 16(b)).

The lower plate portion 372 is a plate-like portion provided at the bottom of the muffling box 370 . The lower plate portion 372 is arranged with its thickness direction directed in the front-rear direction. The lower plate portion 372 is formed in a substantially rectangular shape in a rear view with the longitudinal direction oriented in the horizontal direction (see FIG. 19A). As shown in FIG. 19B, a plurality of lower plate portions 372 (six in this embodiment) are provided at intervals in the front-rear direction. The frontmost and rearmost lower plate portions 372 are provided so as to extend from the right end portion of the base 371 to the left and right halfway portions. Further, the other lower plate portion 372 is provided so as to extend from the right end portion to the left end portion of the base 371 .

The upper plate portion 373 shown in FIGS. 17 to 19 is a plate-like portion provided on the upper portion of the lower plate portion 372 . The upper plate portion 373 is arranged with its thickness direction directed in the front-rear direction. The upper plate portion 373 is formed in a substantially right-angled triangular shape in a rear view with a right-angled vertex at the lower right portion and a left-downward slant (see FIG. 19A). The upper plate portion 373 is placed on each of the plurality of lower plate portions 372 . In this way, the inside of the muffling box 370 is partitioned into the front and rear by the upper and lower plate portions 372 and 373 . The upper plate portion 373 is positioned at the same height as the fan unit 360 (see FIG. 16(b)).

A mounting portion 374 shown in FIGS. 18 and 19 is a portion that is mounted on the front end portion of the base 371 . The mounting portion 374 is formed in a substantially right-angled triangular shape in a rear view with a right-angled apex in the lower right portion and a leftward-downward slant. The mounting portion 374 is arranged between the lower plate portions 372 .

The first upper sound absorbing portion 375 shown in FIG. 17 is composed of a substantially block-shaped sound absorbing material. The first upper sound absorbing portion 375 is provided so as to extend from the upper end to the lower left end of the upper plate portion 373 . Note that the illustration of the first upper sound absorbing portion 375 is omitted in FIG. 19 .

The second upper sound absorbing portion 376 shown in FIGS. 17 to 19 is composed of a plate-like sound absorbing material whose thickness direction is directed vertically. The second upper sound absorbing portion 376 is mounted on the lower plate portion 372 and is provided so as to extend from the front-rear midway portion to the rear end portion of the lower plate portion 372 .

The partition portion 377 is a portion that vertically partitions the space between the second upper sound absorbing portion 376 and the base 371 . The partition part 377 is formed in a plate shape with the thickness direction directed up and down.

The right side sound absorbing portion 378 and the left side sound absorbing portion 379 are composed of substantially triangular prism-shaped sound absorbing material with the axial direction directed vertically. The right sound absorbing portion 378 and the left sound absorbing portion 379 are arranged in the middle of the left and right sides of the base 371 .

The right sound absorbing portion 378 is attached to the rear surface of the lower plate portion 372 . Thus, the right sound absorbing portion 378 is arranged to protrude from the rear surface of the lower plate portion 372 .

The left sound absorbing portion 379 is attached to the front surface of the lower plate portion 372 except for a portion (the rearmost side). Thus, the left sound absorbing portion 379 is arranged so as to protrude from the front surface of the lower plate portion 372 . The left sound absorbing portion 379 is arranged to the left of the right sound absorbing portion 378 with a space therebetween. The left sound absorbing portion 379 is provided so as to extend from the base 371 to the second upper sound absorbing portion 376 .

In the following, the manner in which the internal space B is air-conditioned and ventilated by the partition system 310 configured as described above will be described.

In the partition system 310, the air in the indoor space A is introduced into the internal space B, so that the internal space B is air-conditioned and ventilated. A specific description will be given below.

The air conditioner 320 shown in FIG. 20 air-conditions the indoor space A by sending out conditioned air from the ceiling portion 2 to the indoor space A. As shown in FIG. The air in the indoor space A thus air-conditioned is sucked by the fan unit 360 and sent out toward the internal space B. As shown in FIG. At this time, the air passes through the filter 361 in the fan unit 360 and is cleaned, and is introduced into the sound deadening box 370 through the through hole 333 a of the right wall portion 333 .

The air introduced into the sound deadening box 370 travels leftward between the upper plate portions 373 and is guided leftward and downward by the mounting portion 374 and the first upper sound absorbing portion 375 (see FIGS. 17 and 18). . The air is guided leftward between the lower plate portions 372 by the second upper sound absorbing portion 376 and introduced into the internal space B. As shown in FIG. The air moves upward in the internal space B and is discharged to the outside through the opening 335 a of the ceiling 335 . Thus, in this embodiment, an upward air current is generated in the internal space B by driving the fan unit 360 .

The air discharged to the outside of the internal space B is sucked into the air conditioner 320, the temperature thereof is adjusted, and the air is returned to the indoor space A. The returned air is sucked into the fan unit 360 and introduced into the internal space B. As shown in FIG. The fan unit 360 air-conditions and ventilates the internal space B in this manner. In the third embodiment, by ventilating the internal space B with a fan unit 360 with a HEPA filter that has a high collection function for pathogens and the like, it is possible to take effective measures against infectious diseases.

In addition, the rising air current generated by driving the fan unit 360 pushes the droplets and heat in the internal space B from the bottom to the top, and the internal space B can be replaced and ventilated, and the air in the internal space B can be efficiently cleaned and air-conditioned. can be done.

As shown in FIGS. 18 and 19, the inside of the muffling box 370 is partitioned in the front-rear direction and the vertical direction by a lower plate portion 372, an upper plate portion 373, and a partition portion 377. As shown in FIG. By properly partitioning the inside of the sound deadening box 370 in this way, the speed of the air sent out from the fan unit 360 can be slowed down, and the user can be prevented from being hit by a strong wind. This makes it possible to provide the user with a comfortable environment.

Of the lower plate portions 372, the most front and rear lower plate portions 372 are formed so that the lateral dimension is shorter than the other lower plate portions 372 (see FIG. 19B). In this way, the left portion of the muffling box 370 is formed to open forward and backward. As a result, the air from the fan unit 360 can be supplied to the internal space B while spreading it forward and backward, and the air from the fan unit 360 can be efficiently supplied to the entire area of the internal space B in the horizontal direction.

Further, in this embodiment, the operation sound of the fan unit 360 is muted by the sound deadening box 370 so that the user cannot easily hear the operation sound.

Specifically, the operating sound of the fan unit 360 flows into the silencer box 370 through the through hole 333a. A part of the operation sound is absorbed by the first upper sound absorbing portion 375, the second upper sound absorbing portion 376, the right sound absorbing portion 378, and the left sound absorbing portion 379 shown in FIG. In particular, the right sound absorbing portion 378 and the left sound absorbing portion 379 protrude toward the inside of the air circulation path from the front and rear side surfaces of the lower plate portion 372 (the surface that guides the air from the fan unit 360). With such a configuration, the operating sound of the fan unit 360 can be effectively absorbed by utilizing the phenomenon (edge effect) in which the sound travels around the projecting portions of the sound absorbing portions 378 and 379 .

By absorbing the operating sound of the fan unit 360 with a plurality of sound absorbing materials having different arrangements and shapes, the sound deadening box 370 can effectively muffle the operating sound of the fan unit 360 . Thereby, the partition system 310 can provide a user with a quiet environment.

Below, with reference to Drawing 21 (a) and Drawing 21 (b), the result of the first simulation about partition system 310 concerning a third embodiment is explained. The first simulation is a calculation of how large the operating sound of the fan unit 360 will be in the internal space B. FIG. A specific description will be given below.

In the first simulation, the sound pressure level (db) at the sound receiving point P31 in the internal space B was calculated when the fan unit 360 was driven. The sound volume of the fan unit 360 was set to 64 db. The sound receiving point P31 is assumed to be the position of the face of the user seated on the chair 90, and is set at a position a predetermined distance above the seating surface of the chair 90. FIG. In the first simulation, the sound pressure level at the sound receiving point P31 was calculated with the sound deadening box 370 (this embodiment) and without the sound deadening box 370 (comparative example).

As shown in FIG. 21(b), without the sound deadening box 370, the sound pressure level at the sound receiving point P31 was 48.3 db. On the other hand, with the sound deadening box 370, the sound pressure level at the sound receiving point P31 was 37.4 db.

As is clear from the first simulation, the sound deadening box 370 can reduce the operating noise of the fan unit 360 . A user in the internal space B can hear only a whisper (35 db) of the operation sound of the fan unit 360, and it can be understood that the internal space B is a quiet environment.

Below, with reference to Fig.21 (a) and FIG.21(c), the result of the 2nd simulation regarding the partition system 310 which concerns on 3rd embodiment is demonstrated. The second simulation is a calculation of sound leakage from the internal space B. A specific description will be given below.

In the second simulation, the fan unit 360 was driven and sound leakage from the internal space B was calculated when the user spoke in the internal space B. FIG. The sound volume of the fan unit 360 was set to 64 db as in the first simulation. The volume of the user's voice was set to 70 db, which is higher than 60 db, which is a standard for normal conversation. Also, assuming that the user speaks while seated on the chair 90, it is assumed that a sound of 70 db is emitted from the point P31 described above. Assuming the position of the user's face standing outside the partition wall 330, the sound receiving point P32 is positioned a predetermined distance above the floor 1 (to the left of the partition wall 330).

As shown in FIG. 21(c), as a result of the second simulation, the sound pressure level at the sound receiving point P32 was 33.6 db. As is clear from this result, according to the partition system 310, sound leakage from the internal space B can be effectively suppressed.

As described above, the partition system 310 according to the present embodiment further includes the fan unit 360 that is provided on the partition wall 330 and sends air toward the internal space B. As shown in FIG.

By configuring in this way, the internal space B can be ventilated without blowing air from the underfloor space, and installation is possible even in an area of normal air conditioning that is not floor blowing air conditioning.

Also, the fan unit 360 is provided below the partition wall 330 .

With this configuration, the fan unit 360 is driven to generate an upward air current, and the internal space B can be efficiently ventilated.

In addition, the partition system 310 includes an air supply side sound absorbing portion (a first upper sound absorbing portion 375, a second upper sound absorbing portion 376, a right sound absorbing portion 378, and a left sound absorbing portion 379) made of a sound absorbing material, and the fan unit It further comprises a muffling box 370 (a guide member) that guides the air from 360 .

By configuring in this way, the operation sound of the fan unit 360 can be silenced.

The air supply side sound absorbing portion includes a right sound absorbing portion 378 and a left sound absorbing portion 379 ( protrusions) are included.

By configuring in this way, the operating sound of the fan unit 360 can be effectively silenced by utilizing the sound absorbing material and the edge effect.

The muffler box 370 according to this embodiment is an embodiment of the guide member according to the present invention.
Also, the first upper sound absorbing portion 375, the second upper sound absorbing portion 376, the right sound absorbing portion 378, and the left sound absorbing portion 379 according to the present embodiment are embodiments of the air supply side sound absorbing portion according to the present invention.
Further, the right sound absorbing portion 378 and the left sound absorbing portion 379 according to this embodiment are one embodiment of the projecting portion according to the present invention.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above configurations, and various modifications are possible within the scope of the invention described in the claims.

For example, the partition system according to the present invention is not necessarily provided with all the constituent elements shown in the present embodiment (a system in which some of the constituent elements shown in the present embodiment are not provided is also included in the scope of the invention). ).

For example, in the present embodiment, the internal corner sound absorbing portion 340 is provided, but the internal corner sound absorbing portion 340 can be omitted as necessary. As a result, the number of parts can be reduced, and the cost can be reduced. Also, in this embodiment, the soundproof chamber 350 is provided, but the soundproof chamber 350 can be omitted as necessary.

Further, instead of the internal corner sound absorbing portion 340 and the soundproof chamber 350, other members for preventing sound leakage from the partition system 310 may be provided. FIG. 22 shows an example (modification of the third embodiment). A partition system 410 of a modified example shown in FIG. 22 has a ceiling and is an example of a configuration in which the internal corner sound absorbing section 340 is not provided. The partition system 410 includes a flat sound absorbing material 440 instead of the internal corner sound absorbing portion 340 and the soundproof chamber 350 . The sound absorbing material 440 is provided so as to cover substantially the entire inner surface of the partition wall 330 (the front wall portion 331, the ceiling portion 335, etc.). By soundproofing using the flat sound absorbing material 440 in this manner, the cost required for soundproofing can be reduced.

The configuration for soundproofing the opening 335a is not limited to the configuration of the soundproof chamber 350 or the planar sound absorbing material 440 shown in FIG. 22, and can be arbitrarily changed. For example, the opening 335a may be soundproofed by an upper soundproof portion 50 (see FIG. 2) as in the first embodiment or an upper soundproof portion 150 (see FIG. 8) as in the second embodiment.

Also, although the fan unit 360 is provided on the right wall portion 333, the member on which the fan unit 360 is provided is not particularly limited, and can be arbitrarily changed. For example, the fan unit 360 may be provided on the front wall portion 331, the left wall portion 332, or the like.

Although the HEPA filter is used as the filter 361 of the fan unit 360, the type of the filter 361 is not limited to the HEPA filter, and a different type of filter from the HEPA filter can be adopted. May be omitted.

17 to 19 are merely examples, and can be arbitrarily changed according to the amount of ventilation air of the fan unit 360, the magnitude of the operating noise, and the like. For example, if the ventilation air volume of the fan unit 360 is relatively large, the numbers of the lower plate portion 372 and the upper plate portion 373 may be increased. The number of portions 379 may be increased.

Although the right sound absorbing portion 378 and the left sound absorbing portion 379 are formed in a substantially triangular prism shape, the shapes of the sound absorbing portions 378 and 379 are not particularly limited and can be changed arbitrarily. For example, the sound absorbing portions 378 and 379 may be formed in a substantially cylindrical shape.

Also, the partition system 310 does not necessarily have to include the muffler box 370 . For example, if the operating sound of the fan unit 360 is relatively small, the sound deadening box 370 may not be installed. As a result, the number of parts can be reduced, and the cost can be reduced.

10 partition system 30 partition wall 30a opening 50 upper soundproof part B internal space

Claims (14)

a partition wall that partitions four sides in the horizontal direction to form an internal space and that has an opening that opens upward;
an upper soundproof part made of a soundproof material and provided in the opening of the partition wall;
comprising a
partition system. In the upper soundproof part,
A first upper soundproof part having a lower surface extending inward of the opening as it goes upward,
The partition system according to claim 1. The first upper soundproof part is
Provided so as to cover the entire circumference of the opening,
A partition system according to claim 2. In the upper soundproof part,
A second upper soundproof part disposed above the first upper soundproof part and covering the opening from above is included,
A partition system according to claim 2 or 3. The lower surface of the second upper soundproof part is
Formed to swell upwards,
A partition system according to claim 4. The second upper soundproof part is
formed so as to overlap the entire first upper soundproof part in a plan view,
A partition system according to claim 4 or claim 5. a blowout section for blowing conditioned air into the internal space;
a suction section provided above the upper soundproof section and capable of sucking the conditioned air blown out from the blowing section;
further comprising
The upper soundproof part is
conditioned air from the blowing part is formed to pass upward,
A partition system according to any one of claims 1 to 6. Further comprising an internal corner sound absorbing portion configured by a sound absorbing material and provided at an internal corner portion of the partition wall,
A partition system according to any one of claims 1 to 7. In the internal corner sound absorbing part,
including a first internal corner sound absorbing portion formed in a triangular prism shape,
A partition system according to claim 8. The partition wall is
Equipped with a first wall and a second wall that can move integrally with the chair,
In the internal corner sound absorbing part,
It is provided on the second wall portion and is arranged at an inside corner portion of the first wall portion and the second wall portion in a state in which the chair portion is moved into the internal space, and the surface facing the internal space is A second internal corner sound absorbing portion formed in an arc that bulges from the second wall portion toward the internal space is included,
A partition system according to claim 8 or claim 9. further comprising a fan unit provided in the partition wall for sending air toward the internal space;
A partition system according to any one of claims 1 to 10. The fan unit is
Provided at the bottom of the partition wall,
A partition system according to claim 11 . further comprising a guide member that includes an air supply side sound absorbing portion made of a sound absorbing material and guides air from the fan unit;
A partition system according to claim 11 or claim 12. In the air supply side sound absorbing part,
a protrusion positioned to protrude from a surface that guides air from the fan unit;
A partition system according to claim 13.

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