Private booth

Abstract

To provide a private booth which can reduce echo and sound leakage, in which a construction work and a demolition work become easy, and which can flexibly cope with change of the number of booths and layout.SOLUTION: In a private booth (a booth unit 100), a plurality of private rooms (booth devices 1) are continuously connected. The booth device 1 has an upward opening portion 2a, and a plurality of steel panels (side plates 22, a rear plate 25) grounding a floor are corner-connected by a plurality of connection members (posts 21) with each other, to be formed in a rectangular shape in plan view. Sound absorbing panels 42 are attached to a part or the whole of the steel panels facing an inside of the booth device 1.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] This disclosure relates to a private booth that can be used by one person or a small number of people.

Background Art

[0002] Conventionally, a dedicated private booth that can be used by one person or a small number of people has been disclosed for holding a remote meeting in an office (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The private booth described in Patent Document 1 is costly to install and cannot flexibly respond to increases or decreases in the number of booths. On the other hand, it is also possible to create a private room using steel partitions that are widely used in offices, but when a remote meeting is held in such a private room, the sound reverberates and the convenience is reduced. Therefore, an object of the present disclosure is to solve the above problems.

Means for Solving the Problems

[0005] The private booth according to the first aspect of the present invention is a private booth in which a plurality of private rooms are connected, and each private room has an opening facing upward, and a plurality of steel panels grounded on the floor are corner-connected to each other by a plurality of connecting members and formed in a rectangular shape in plan view. The opening is provided with a shielding portion that closes a part of the opening.A sound-absorbing panel is attached to part or all of the surface of the steel panel facing the inside of the private room, a mounting frame is provided between the steel panel and the sound-absorbing panel, the sound-absorbing panel is detachably fixed to the mounting frame, the opening is formed in a rectangular shape identical to the private room in plan view, and the sound-absorbing panel is fixed to the mounting frame in a state where it is divided into multiple pieces in the vertical direction so that each piece has a common shape.

[0006] According to the private booths described in the first point above, by installing sound-absorbing panels inside the room, reverberation and sound leakage can be reduced, making it possible to comfortably conduct web conferences and other similar activities even in small spaces. In addition, the work during construction and dismantling becomes easier, and it is possible to flexibly respond to changes in the number and layout of booths.

[0007] In the private booths relating to the first point of view described above, the multiple private rooms can be arranged in a configuration where each user of each private room faces the same direction along the direction of connection between the rooms (series arrangement configuration), or in a configuration where each user faces the same direction perpendicular to the direction of connection between the rooms (parallel arrangement configuration). It is also possible to arrange the multiple private rooms in a series arrangement or parallel arrangement, with each set of rooms arranged parallel to the direction of connection between the rooms. Furthermore, it is also possible to arrange the multiple private rooms in a configuration where each user of each private room faces the direction of the adjacent private room in a clockwise or counterclockwise direction in a plan view (rotating arrangement configuration).

[0008] A private booth according to a second aspect of the present invention is a private booth according to a first aspect, wherein the steel panel is provided at least between adjacent private rooms. Multiple plates are provided on the mounting frame. The aforementioned sound-absorbing panel is installed.

[0009] According to the private booths mentioned in the second point above, it is possible to make it difficult for voices to leak into adjacent private rooms.

[0010] A private booth according to the third aspect of the present invention is a private booth according to the first or second aspect, At least one optional component from among a speaker, lighting, and a display can be mounted on the aforementioned mounting frame. .

[0011] According to the private booths related to the third point of view mentioned above, Mounting frame Optional components such as speakers can be attached and detached via this mechanism.

[0012] The private booth according to the fourth aspect of the present invention is From either the first or third perspective In the private booth relating to the above, Mounting frame These can be attached to both sides of the steel panel provided between adjacent private rooms, so as to be at the same position in the width direction of the steel panel.

[0013] the above Fourth perspective In the case of the private booths mentioned above, the mounting positions of the optional mounting members can be standardized by attaching them at the same position in the width direction of the steel panel.

[0014] This invention Fifth perspective The private booths related to this are From the first perspective to one of the fourth perspectives In the private booth relating to the above, a space is formed between the surface of the steel panel and the back surface of the sound-absorbing panel through which wiring can be inserted.

[0015] the above Fifth perspective With the private booths mentioned, wiring can be routed without compromising the aesthetic design of the private room.

[0016] This invention Sixth perspective The private booths related to this are From the first perspective to any one of the fifth perspectives In the private booths relating to the above, each of the private rooms is furnished with a tabletop and / or a chair, and the tabletop and / or chair are arranged so that users of adjacent private rooms face the same direction without facing each other.

[0017] the above Sixth perspective The private booths mentioned above make it difficult for the user's voice to be heard in adjacent private rooms. [Effects of the Invention]

[0018] The private booth according to the present invention described above provides the following effects.

[0019] According to the private room booth according to the first aspect, it is possible to reduce reverberation and sound leakage in the private room, and it is possible to easily perform work during construction and dismantling.

[0020] According to the private room booth according to the second aspect, it is possible to make it difficult for sound to leak into adjacent private rooms.

[0021] According to the private room booth according to the third aspect, Mounting frame it is possible to attach and detach the optional member through.

[0022] According to the private room booth according to the fourth aspect, it is possible to unify the attachment positions of the optional members.

[0023] Fifth perspective According to the private room booth according to, it is possible to route the wiring without impairing the design in the private room.

[0024] Sixth perspective According to the private room booth according to, it is possible to make it difficult for the user's voice to leak into adjacent private rooms.

Brief Explanation of Drawings

[0025] [Figure 1] Perspective view showing the booth device according to the first embodiment. [Figure 2] Perspective view showing the internal structure of the booth device according to the first embodiment. [Figure 3] Cross-sectional view taken along line Y1-Y1 in FIG. 1. [Figure 4] Plan view showing the booth device according to the first embodiment. [Figure 5] Perspective view showing the assembly configuration of the mounting frame. [Figure 6] Perspective view showing the assembly configuration of the speaker and the sound absorption panel. [Figure 7] (a) to (c) are respectively the enlarged cross-sectional views taken along line X1-X1, line X2-X2, and line X3-X3 in FIG. 1.​​​ [Figure 9] (a) and (b) are plan and perspective views showing the assembly configuration of the support column and side plate. [Figure 10] A perspective view showing a booth unit according to one embodiment. [Figure 11] A perspective view showing the mounting frame being assembled to the side panel. [Figure 12] (a) and (b) are perspective and plan views showing the assembly configuration of the side plate and mounting frame. [Figure 13] (a) and (b) are a plan view showing the configuration of the measurement test and a diagram showing the results of the measurement test, respectively. [Figure 14] A perspective view showing a booth device according to the second embodiment. [Figure 15] A perspective view showing the internal structure of the booth device according to the second embodiment. [Figure 16] Cross-sectional view along the line Y2-Y2 in Figure 14. [Figure 17] A plan view showing a booth device according to the second embodiment. [Figure 18] A perspective view showing the assembly configuration of the sound-absorbing panel. [Figure 19] (a) is a plan view showing the assembly configuration of the sound-absorbing panel, and (b) is a perspective view showing the assembly components. [Figure 20] A perspective view showing the speaker assembly configuration. [Figure 21] A plan view showing the speaker assembly configuration. [Modes for carrying out the invention]

[0026] [Booth device 1] The following describes a booth device 1 according to the first embodiment of the present invention, using Figures 1 to 9. As shown in Figures 1 and 2, the booth device 1 according to this embodiment is placed on the floor and used for one or a small number of people to use the room. The booth device 1 is mainly constructed by combining metal members such as steel or aluminum alloy. In this embodiment, the direction of the booth device 1 is defined by the arrow in Figure 1.

[0027] As shown in Figures 1 and 2, the booth device 1 according to this embodiment constitutes a private room by having a cylindrical peripheral wall 2 with an opening 2a formed at the top. The peripheral wall 2 is formed in a rectangular shape in plan view, as shown in Figures 1, 2 and 4. The peripheral wall 2 consists of support columns 21 arranged at the four corners in the vertical direction, side plates 22 arranged on both sides of the peripheral wall 2, a door frame panel 23 and a door 24 arranged at the front of the peripheral wall 2, and a back plate 25 arranged at the rear of the peripheral wall.

[0028] As shown in Figures 1 and 4, the support columns 21 are columnar members positioned at the four corners of the peripheral wall 2, and to which the side plates 22, door frame panels 23 and doors 24, and back plates 25 are assembled. Side cover members 21a are attached to the sides of the support columns 21 that are exposed to the outside in the peripheral wall 2. In addition, a top cover member 21b is attached to the top surface of the support columns 21.

[0029] As shown in Figures 8 and 9(a), the support column 21 has protruding ridges 21c that extend diagonally in the front, back, left, and right directions, forming the corners of the support column 21 along its longitudinal direction. Numerous engagement holes 21d are opened on the outer surface of the protruding ridges 21c. The space between the protruding ridges 21c is formed as an insertion section 21e through which connecting members such as side plates 22 or wiring cords C can be inserted (see Figures 9(a) and (b)).

[0030] The side panels 22 and back panel 25 are assembled to the support column 21 via connecting members 22b and 25b fixed to the upper parts of the side panels 22 and back panel 25. Specifically, as shown in Figure 9(a), locking portions are formed at the ends of the connecting members 22b and 25b, and these locking portions extend from the end faces of the side panels 22 and back panel 25. The connecting members 22b and 25b are then connected to the support column 21 by inserting the locking portions between the protruding portions 21c and 21c of the support column 21. The lower parts of the side panels 22 and back panel 25 are also connected to the support column 21 in the same way as the upper parts. The door frame panel 23 is also assembled to the support column 21 in the same way as the side panels 22 and back panel 25.

[0031] As shown in Figure 1, the door frame panel 23 and the door 24 are rotatably assembled via a hinge H. A door knob 24a is provided on the door 24. A door closer 24b is also provided on the upper rear surface of the door 24. In this embodiment, a transparent glass panel is assembled to the door 24, but the door 24 may be made of an opaque material.

[0032] In this embodiment, two side plates 22·22 are arranged on each side of the peripheral wall 2, connected to one another. A groove 22a is formed on the upper edge of each side plate 22, communicating with each other. As shown in Figures 11 and 12, locking portions 22c are formed along the longitudinal direction on the inner surface of the groove 22a, protruding opposite each other. A groove 25a is also formed on the upper edge of the back plate 25.

[0033] Furthermore, the external dimensions of the perimeter wall 2 can be changed by altering the width dimensions (horizontal length dimensions perpendicular to the thickness direction) of the side panels 22, door frame panels 23 and doors 24, and back panel 25. In other words, the size of the booth device 1 can be appropriately changed in the front, back, left, and right directions by altering the external dimensions of the perimeter wall 2.

[0034] As shown in Figures 2 to 4, multiple sound-absorbing panels 42 made of sound-absorbing material such as nonwoven fabric are provided on the rear of the side panel 22 and the back panel 25 (opposite the door 24) of the inner surface of the peripheral wall 2. According to the booth device 1 of this embodiment, the sound insulation of the booth device 1 (the attenuation of sound volume transmitted between the inside and outside of the booth device 1) is enhanced by absorbing the voices emitted from the user inside the booth device 1 with the sound-absorbing panels 42. In this embodiment, the multiple sound-absorbing panels 42 are divided vertically and are independently detachable from the peripheral wall 2.

[0035] In the booth device 1 according to this embodiment, a roof member 31, a first louver member 32, and a second louver member 33 are provided as shielding parts in the opening 2a of the peripheral wall 2, as shown in Figures 1 to 4. In this embodiment, the roof member 31, the first louver member 32, and the second louver member 33, which are the shielding parts, are configured to expose sound-absorbing materials such as nonwoven fabric.

[0036] In this embodiment, the shielding roof member 31, the first louver member 32, and the second louver member 33 are configured to shield an area of ​​30% or less of the opening area of ​​the opening 2a in a plan view. This ensures that water can be sprayed from above by sprinklers or the like in the event of a fire.

[0037] As shown in Figures 1 and 2, the roof member 31 is a plate-shaped member positioned approximately horizontally such that its horizontal dimension (front-to-back dimension and left-to-right dimension) is greater than its height dimension. Furthermore, as shown in Figure 7(b), the roof member 31 comprises a roof body portion 31a formed by being recessed in the vertical direction so as to be rectangular in plan view, and hook-shaped engaging portions 31b formed on both the left and right sides of the roof body portion 31a. In the booth device 1, the roof member 31 is assembled to the peripheral wall 2 by the engaging portions 31b of the roof member 31 engaging with grooves 22a of the opposing side plates 22.

[0038] As shown in Figures 1 to 4, the roof member 31 of the booth device 1 has an open space between its two sides facing each other in the front-rear direction and the surrounding wall 2. In other words, gaps are formed between the roof member 31 and the surrounding wall 2 (door frame panel 23 and door 24, and back panel 25) on both the front and rear sides.

[0039] Four first louver members 32 are provided in the gap between the roof member 31 and the door frame panel 23 and door 24. Additionally, four second louver members 33 are provided in the gap between the roof member 31 and the back panel 25. The number of each louver member is not limited and other numbers are possible.

[0040] As shown in Figures 1 and 2, the first louver member 32 and the second louver member 33 are plate-shaped members arranged such that their vertical and horizontal dimensions are greater than their front-to-back dimensions. Also, as shown in Figure 7(b), the first louver member 32 comprises a plate-shaped first louver portion 32a arranged parallel to the door 24, and hook-shaped first engaging portions 32b formed on both the left and right sides of the first louver portion 32a. Also, as shown in Figure 7(c), the second louver member 33 comprises a plate-shaped second louver portion 33a arranged parallel to the back plate 25, and hook-shaped second engaging portions 33b formed on both the left and right sides of the second louver portion 33a.

[0041] As shown in Figures 7(a) and (c), in the booth device 1, the first engaging portion 32b and the second engaging portion 33b engage with the grooves 22a of the opposing side plates 22, thereby assembling the first louver member 32 and the second louver member 33 to the peripheral wall 2. In this embodiment, as shown in Figure 7(c), a sound-absorbing panel 42 is provided on the side plate 22 in the area where the second louver member 33 is assembled, so the second louver portion 33a is formed to have a smaller width dimension in the left-right direction than the first louver portion 32a.

[0042] In the booth device 1 according to this embodiment, the engaging portion 31b of the roof member 31, the first engaging portion 32b of the first louver member 32, and the second engaging portion 33b of the second louver member 33 can be provided at any position in the front-rear direction within the groove 22a of the side plate 22. It is also possible to form multiple slits at predetermined intervals in the groove 22a and insert the engaging portions 31b, first engaging portion 32b, and second engaging portion 33b into these slits to restrict the front-rear positions of the roof member 31, first louver member 32, and second louver member 33. Furthermore, it is also possible to fix a positioning fitting with slits formed in it along the longitudinal direction of the groove 22a, and then insert the engaging portions 31b, first engaging portion 32b, and second engaging portion 33b into the slits of this positioning fitting to assemble the roof member 31, first louver member 32, and second louver member 33 in a positioned state within the groove 22a.

[0043] As described above, in the booth device 1 according to this embodiment, the sound emitted from the user inside the booth device 1 is reflected by the roof member 31, making it difficult for the sound to be emitted to the outside of the booth device 1, thereby improving the sound insulation of the booth device 1. In addition, since there is an open space between the two sides of the roof member 31 that face each other in the front-rear direction and the surrounding wall 2, it does not obstruct water spraying from above by sprinklers or the like.

[0044] Furthermore, in the booth device 1 according to this embodiment, by reflecting the voices emitted from the user inside the booth device 1 between the first louver members 32 and the second louver members 33, the voices are less likely to be emitted to the outside of the booth device 1, thereby further improving the sound insulation of the booth device 1.

[0045] In the booth device 1 according to this embodiment, speakers S are provided on the inner surfaces (inner surfaces of the side plates 22) of the peripheral wall 2 that face each other in the left-right direction. As shown in Figures 3 and 4, the speakers S are assembled to the side plates 22 via a mounting frame 41. The mounting frame 41 is a ladder-shaped optional mounting frame composed of a frame body, and is a connecting member interposed between the side plates 22 and the sound-absorbing panel 42.

[0046] As shown in Figure 5, the mounting frame 41 comprises a locking portion 41a formed at its upper end, a frame 41b that forms the framework of the mounting frame 41, and a support plate 41c provided on the frame 41b to which the speaker S is fixed. When assembling the mounting frame 41 to the side plate 22, first, the locking portion 41a is locked into the groove portion 22a of the side plate 22, as shown in Figure 5.

[0047] Subsequently, as shown in Figure 6, the speaker S is assembled to the support plate 41c. The mounting frame 41 is covered by assembling the sound-absorbing panel 42 to the side plate 22. Furthermore, as shown in Figure 3, the booth device 1 is constructed by assembling the sound-absorbing panel 42, which has an opening in the window portion 42a, around the speaker S, so that the speaker S is exposed on part of the sound-absorbing panel 42. In this embodiment, the surface of the speaker S is covered with a cover member made of mesh fabric or the like.

[0048] As shown in Figure 4, in the booth device 1 according to this embodiment, the speaker S and the roof member 31 are located in an overlapping area in a plan view. This allows the sound emitted from the speaker S to be reflected by the roof member 31, making it difficult for the sound emitted from the speaker S to escape to the outside of the booth device 1, thereby further improving the sound insulation of the booth device 1. From the viewpoint of making it difficult for the sound emitted from the speaker S to escape to the outside, it is preferable to use a directional speaker as the speaker S. Furthermore, by arranging the speakers S so as to sandwich the user from the left and right, it is possible to suppress the volume of the speaker S, making it difficult for the sound emitted from the speaker S to leak to the outside of the booth device 1.

[0049] In the booth device 1 according to this embodiment, the sound-absorbing panel 42 is attached to the mounting frame 41 via resin rivets or the like. Alternatively, the sound-absorbing panel 42 can be attached to the side plate 22 and back plate 25 by attracting a magnetic material fixed to the sound-absorbing panel 42, or the sound-absorbing panel 42 can be fixed to the side plate 22 and back plate 25 by adhesive.

[0050] In this embodiment, a top plate 52 is provided inside the booth device 1 along the back plate 25. Specifically, as shown in Figure 8, the engaging portion 51a formed on the top plate bracket 51 engages with the engaging hole 21d of the support column 21, thereby assembling the top plate bracket 51 to each of the two support columns 21, 21 located at the rear of the booth device 1. The top plate 52 is then fixed to the top of the two top plate brackets 51, 51, so that the top plate 52 is provided inside the rear of the booth device 1 (along the back plate 25).

[0051] In the booth device 1 according to this embodiment, as shown in Figures 3 and 8, a tray 53 for housing communication equipment and wiring is provided between the two top plate brackets 51, 51. A cover 54 is fixed to the front side of the tray 53 to cover the upper side of the tray 53.

[0052] As shown in Figures 2 to 4, in the booth device 1 according to this embodiment, the rear end of the top plate 52 is positioned near the roof member 31 in a plan view. Since users of the booth device 1 often sit and speak near the front of the top plate 52, by bringing the rear end of the top plate 52 and the roof member 31 closer together in a plan view as described above, the user's head can be positioned below the roof member 31. This makes it easier for the voice from the user of the booth device 1 to be reflected by the roof member 31. In other words, according to the booth device 1 according to this embodiment, it is possible to make it difficult for the voice from the user to be emitted outside the booth device 1, thereby further improving the sound insulation of the booth device 1 (see the test results described later).

[0053] In particular, in the booth device 1 according to this embodiment, the roof member 31 is fixed to the two side plates 22, 22. This allows the sound emitted inside the booth device 1 to be reflected by the roof member 31 near the side plates 22, 22, making it difficult for the sound to be transmitted to the outside of the booth device 1 on the sides.

[0054] Furthermore, as in this embodiment, by positioning the user's head below the roof member 31, external noise from the booth device 1 reaching the user can be suppressed. In other words, in the booth device 1 according to this embodiment, external noise entering from above the user is blocked by the roof member 31, thereby further enhancing sound insulation.

[0055] [Booth Unit 100] Next, a booth unit 100 according to one embodiment of the private booth according to the present invention will be described with reference to Figure 10. In this embodiment, the booth unit 100 is formed by connecting two booth devices 1 according to the above embodiment in the left-right direction. The components constituting the booth unit 100 are the same as those constituting the components of the booth device 1, so a detailed explanation will be omitted.

[0056] In the booth unit 100 according to this embodiment, the left and right booth devices 1 share two support columns 21 and side plates 22 positioned between them. Therefore, in the booth unit 100 according to this embodiment, the mounting frames 41, 41 assembled opposite each other on the same side plate 22 are configured to be installed at the same position in the front-rear direction without interference.

[0057] Specifically, as shown in Figures 11 and 12(a), the mounting frame 41 in this embodiment is formed by bending a claw-shaped locking portion 41a perpendicularly to a fixing plate 41d formed at the upper end of the frame 41b. In this case, as shown in Figure 12(b), the distance from the center line L of the fixing plate 41d to the left locking portion 41a is greater than the distance to the right locking portion 41a.

[0058] As a result, as shown in Figures 12(a) and (b), when the mounting frame 41 is engaged with the groove 22a of the side plate 22 and the locking part 41a is locked to the locking part 22c, the centerlines of the respective fixing plates 41d can be aligned. In other words, the mounting frames 41 and 41 that are assembled facing each other can be installed at the same position in the front-rear direction on the side plate 22 without interfering with each other.

[0059] In the booth unit 100 according to this embodiment, the roof member 31 provided on each booth device 1 is fixed to one peripheral wall 2 (in this embodiment, a side plate 22 provided between two booth devices 1, 1) positioned between adjacent booth devices 1, and to the other peripheral wall 2 (in this embodiment, side plates 22, 22 provided on the left and right outer sides of the booth unit 100) facing the first peripheral wall 2.

[0060] With the booth unit 100, by configuring it as described above, the sound emitted from adjacent booth devices 1,1 can be reflected by the roof member 31 near the side panels 22,22. This makes it less likely for sound to leak out to the outside on the side of booth device 1, thus making it less likely for sound to be transmitted between booth devices 1,1. In other words, it becomes possible to further improve the sound insulation between booth devices 1,1.

[0061] Furthermore, inside each booth device 1·1 of the booth unit 100 according to this embodiment, a top plate 52 is provided along a back plate 25 that intersects with the side plate 22 (see Figure 2). This allows the user using the top plate 52 inside each booth device 1·1 to be positioned facing the back plate 25. As a result, the user can speak in a direction perpendicular to the adjacent booth device 1·1 (towards the rear in this embodiment), thereby further improving sound insulation between adjacent booth devices 1·1.

[0062] Furthermore, when using the booth unit 100 according to this embodiment, it is preferable to position the back panel 25 of the booth device 1 that constitutes the booth unit 100 close to the wall, in order to minimize the impact of sound leakage to the outside.

[0063] [Measurement test results] Next, the results of the measurement tests conducted by the applicant to verify the sound insulation performance of the booth unit 100 will be explained using Figure 13. As shown in Figure 13(a), the applicant conducted tests on the sound insulation performance of two consecutive booth devices (speaking booth Bs and measurement booth Bm) similar to the booth unit 100.

[0064] In this test, the same configuration as the surrounding wall 2 in booth device 1 was used in both the vocalization booth Bs and the measurement booth Bm, ensuring that both were under the same conditions. In addition, sound-absorbing panels P, similar to the sound-absorbing panel 42 provided in booth device 1, were placed on the left, right, and front sides of the room. As indicated by the arrow St, vocalization was performed at 500 Hz from a speaker placed at the vocalization point Ps in the center of vocalization booth Bs, directed forward. Furthermore, the sound volume at the measurement point Pm in the center of measurement booth Bm, which is adjacent to vocalization booth Bs, was measured.

[0065] In this test, as shown in Figure 13(b), tests 1 to 5 were conducted with different arrangement conditions for the roof members and louver members. Specifically, Test 1 was a configuration without roof members or louver members. Test 2 was a configuration in which the entire upper opening was closed with roof members and no louver members were installed. Test 3 was a configuration in which the front 30% of the upper opening was closed with roof members and no louver members were installed. Test 4 was a configuration in which the 30% above the upper opening (above the phonation point Ps and measurement point Pm) was closed with roof members and no louver members were installed. Test 5 was a configuration in which the roof members were installed above the upper opening (above the phonation point Ps and measurement point Pm), and a total of 10 louver members were installed in front of and behind the roof members, so that the roof members and louver members closed a total of 30% of the opening.

[0066] In this test, as shown in Figure 13(b), the reduction effect of the measured sound volume was measured for each of the five tests, from Test 1 to Test 5, compared to the condition in which the sound volume was measured near the point of sound emission Ps (hereinafter referred to as the "basic condition"). Specifically, in Test 1, where no roof members were provided, a sound volume reduction effect of 19.1 dB was confirmed compared to the basic condition. Furthermore, in Test 2, where all openings were closed with roof members, a high sound volume reduction effect of 28.7 dB was confirmed compared to the basic condition.

[0067] On the other hand, as shown in Figure 13(b), Test 3, in which the front 30% was blocked off with the roofing material, only showed a sound reduction effect of 20.2 dB compared to the basic conditions, and there was no significant difference compared to Test 1, in which no roofing material was provided. Furthermore, Test 4, in which the overhead 30% was blocked off with the roofing material, showed a sound reduction effect of 25.2 dB compared to the basic conditions. Thus, this test confirmed that when the roofing material is placed above the point of sound emission (above the head of the booth user), there is a sound reduction effect of more than 5 dB compared to when the roofing material is placed in front, and that it exhibits high sound insulation without hindering water spraying.

[0068] Furthermore, in Test 5, where 30% of the overhead area was blocked off with roof and louver components, the noise reduction effect was 27.9 dB compared to the basic conditions, which is comparable to that of Test 2, where all openings were blocked off with roof components. Thus, this test confirmed that further improvements in sound insulation are possible by adding louver components in addition to roof components.

[0069] [Other variations] The above embodiments can be modified as appropriate, as shown in the other modifications described below. Each modification described herein may be applied in combination with other modifications, to the extent that it does not create inconsistencies.

[0070] The booth equipment can have a shape other than a rectangle when viewed from above. For example, the booth equipment can have a circular, triangular, pentagonal, trapezoidal, or other shape when viewed from above.

[0071] In the booth device 1, the roof member 31 may have open spaces between two opposing sides in the front-rear direction and the surrounding wall 2, as in this embodiment, or it may have open spaces between two opposing sides in the left-right direction and the surrounding wall 2. Furthermore, it may have open spaces between three or more sides in the front-rear, left-right, and right directions and the surrounding wall 2.

[0072] In the booth device 1, a roof member 31, a first louver member 32, and a second louver member 33 are provided as shielding parts that shield the opening 2a of the peripheral wall 2. However, it is also possible to configure the booth device 1 with only the roof member 31 as the shielding part. Furthermore, in the booth device 1, it is also possible to configure the shielding part with only louver members, and to configure the roof member by rotating some of the louver members to connect with adjacent louver members.

[0073] In the booth device 1, the shielding components, namely the roof member 31, the first louver member 32, and the second louver member 33, are not limited to nonwoven fabric but may be made of other materials capable of reflecting sound, such as steel plates. It is also possible to construct a sound-absorbing panel by placing sound-absorbing material inside a steel plate panel.

[0074] In the booth device 1, it is also possible to omit either the sound-absorbing panel 42 or the speaker S, or both. Furthermore, it is possible to install the sound-absorbing panel 42 only at the rear or only at the sides of the booth device 1. Additionally, it is possible to install the speaker S at the rear of the booth device 1.

[0075] In the booth unit 100, it is also possible to install the roof member 31 of the booth device 1 with its longitudinal direction facing the front-to-back direction. Furthermore, it is also possible to configure the booth device 1 so that the top plate 52 is provided along the side plate 22 (a configuration in which the user is in a position facing the side plate 22).

[0076] [Booth device 1A] The following describes a booth device 1A according to a second embodiment of the present invention, using Figures 14 to 21. As shown in Figures 14 to 16, the booth device 1A according to this embodiment is placed on the floor and used for one or a small number of people to use a room. Among the components constituting the booth device 1A, those common to the booth device 1 according to the above embodiment are denoted by the same reference numerals and detailed descriptions are omitted. In this embodiment, the direction of the booth device 1A is defined by the arrow in Figure 14.

[0077] As shown in Figures 14 to 17, the booth device 1A according to this embodiment, like the booth device 1 according to the previous embodiment, constitutes a private room by having a cylindrical peripheral wall 2 with an opening 2a formed at the top and in contact with the floor. The peripheral wall 2 is composed of four support columns 21 and steel panels, namely side panels 22, door frame panels 23, and back panel 25, which are connected in a rectangular shape in plan view by the support columns 21. A door 24 is assembled to the door frame panel 23 via a hinge H so that it can be opened and closed.

[0078] As shown in Figures 15 to 17, multiple sound-absorbing panels 142 made of sound-absorbing material such as nonwoven fabric are provided on the rear of the side panel 22 and the back panel 25 (opposite the door 24) of the inner surface of the peripheral wall 2. In the booth device 1A according to this embodiment, the sound insulation performance of the booth device 1A (attenuation of sound volume transmitted between the inside and outside of the booth device 1A) is enhanced by absorbing the voices emitted from the user inside the booth device 1A with the sound-absorbing panels 142. In this embodiment, the multiple sound-absorbing panels 142 are divided into five sections in the vertical direction and are independently detachable from the peripheral wall 2.

[0079] In the booth device 1A according to this embodiment, in order to standardize parts, all sound-absorbing panels 142 are of the same shape and size. Furthermore, although the sound-absorbing panels 142 in this embodiment are formed to be shorter than the front-to-back width dimension of the side walls (side panels 22, 22) of the booth device 1A, from the viewpoint of absorbing the sound of the user's speech, the sound-absorbing panels 142 should be positioned at least in front of the user's position (see Figures 15 to 17). In addition, the sound-absorbing panels 142 may be provided along the entire width of the side walls of the booth device 1A.

[0080] As shown in Figures 18 and 19, the sound-absorbing panel 142 is assembled to the side plate 22 and back plate 25 via a mounting frame 141. The mounting frame 141 is a connecting member interposed between the side plate 22 and the sound-absorbing panel 42, and also functions as an optional mounting member for attaching the speaker Sa, as will be described later. In this embodiment, the assembly configuration of the sound-absorbing panel 142 to the back plate 25 is the same as the assembly configuration to the side plate 22, so the method for assembling the sound-absorbing panel 142 to the side plate 22 will be described below.

[0081] The mounting frame 141 comprises a locking portion 141a formed at its upper end and a rod-shaped frame 141b which is the main body of the mounting frame 141. As shown in Figure 18, the mounting frame 141 is assembled to the side plate 22 by locking the locking portion 141a into the groove portion 22a of the side plate 22. As shown in Figures 14, 15, and 17, the locking portion 141a is covered by an upper cap 141d. Multiple mounting holes 141c are opened in the frame 141b for fixing the panel support member 143. Also, as shown in Figure 16, a mounting portion 141e is formed at the lower end of the frame 141b for placing the sound-absorbing panel 142 which is provided at the bottom.

[0082] The sound-absorbing panel 142 is supported by the mounting frame 141 via a panel support member 143. Specifically, as shown in Figures 18 and 19, recessed locking portions 142a are formed on the back surfaces of the upper and lower ends of the sound-absorbing panel 142. In addition, locking portions 143a are formed on the panel support member 143, each protruding in the vertical direction.

[0083] Then, as shown in Figures 18 and 19(a), the mounting frame 141 is assembled to the side plate 22, and with the sound-absorbing panel 142 pressed against the side plate 22 so that the mounting frame 141 passes through the locking portion 142a, the fixing screws 144 are screwed into the fixing holes 143b and mounting holes 141c of the panel support member 143. As a result, the locking portion 142a of the sound-absorbing panel 142 is locked to the locking portion 143a of the panel support member 143, and the sound-absorbing panel 142 is assembled to the side plate 22 via the mounting frame 141. Note that when assembling the panel support member 143 to the mounting frame 141, it is also possible to configure it so that the panel support member 143 is elastically deformed and locked to the mounting frame 141 without using the fixing screws 144.

[0084] As shown in Figure 19(b), the cap 145 is assembled to the panel support member 143, thereby covering the surface of the panel support member 143 and the fixing screws 144. The cap 145 has a groove-shaped insertion hole 145a, and the cap 145 is assembled to the panel support member 143 by inserting the locking portion 143a of the panel support member 143 into the insertion hole 145a.

[0085] As described above, in the booth device 1A according to this embodiment, each sound-absorbing panel 142 is only secured to the panel support member 143, so it is possible to remove it from the side plate 22 or back plate 25 simply by removing either the upper or lower panel support member 143 from the mounting frame 141. For example, when removing the bottom sound-absorbing panel 142, it can be removed from the side plate 22 or back plate 25 by removing the lower panel support member 143 from the mounting frame 141.

[0086] In the booth device 1A according to this embodiment, speakers Sa are provided on the inner surfaces (inner surfaces of the side plates 22) of the peripheral wall 2 that face each other in the left-right direction. As shown in Figures 20 and 21, the speakers Sa are assembled to the side plates 22 via a mounting frame 141, which is an optional mounting member.

[0087] As shown in Figures 20 and 21, the speaker Sa is assembled to the mounting frame 141 via the panel support member 143. Specifically, the speaker support member 146 is fixed to the panel support member 143 to which the speaker Sa is assembled using fixing screws 144, instead of the cap 145.

[0088] As shown in Figure 21, the speaker support member 146 is formed by bending a plate-shaped member. The speaker support member 146 comprises a fixed portion 146a that is fixed to the panel support member 143, and two speaker support portions 146b that support the speaker Sa. With the fixed portion 146a fixed to the panel support member 143, the speaker Sa is fixed to the speaker support portions 146b via speaker fixing screws 147. In this way, the speaker Sa is assembled to the side plate 22 via the panel support member 143 and the mounting frame 141.

[0089] The mounting frame 141, which is an optional mounting member, can be used to attach optional members other than the speaker Sa. For example, in the booth device 1A according to this embodiment, the mounting frame 141 that supports the sound-absorbing panel 142 on the back plate 25 is fitted with lighting I and a display D.

[0090] In the booth device 1A according to this embodiment, a support member 130, a roof member 131, a first louver member 132, and a second louver member 133 are provided as shielding parts in the opening 2a of the peripheral wall 2, as shown in Figures 14 to 17.

[0091] In the booth device 1A, the support members 130-130 are engaged with the grooves 22a of the side plates 22 on both the left and right sides. The roof member 131, the first louver member 132, and the second louver member 133 are then spanned between the respective support members 130-130. As a result, the support members 130, the roof member 131, the first louver member 132, and the second louver member 133 are provided as a shielding section that shields the opening 2a.

[0092] In this embodiment, the shielding parts, namely the support member 130, the roof member 131, the first louver member 132, and the second louver member 133, are configured to expose sound-absorbing materials such as nonwoven fabric. Furthermore, the shielding parts, namely the support member 130, the roof member 131, the first louver member 132, and the second louver member 133, are configured to shield an area of ​​30% or less of the opening area of ​​the opening 2a in a plan view. This ensures that water can be sprayed from above by sprinklers or the like in the event of a fire.

[0093] In this embodiment, a top plate 152 is provided inside the booth device 1A along the back plate 25. Specifically, as shown in Figures 15 and 16, the top plate support 151 is fixed to the support column 21, and the top plate 152 is fixed to the upper part of the two top plate support 151, so that the top plate 152 is provided inside the rear of the booth device 1A (along the back plate 25).

[0094] In the booth device 1A according to this embodiment, as shown in Figure 16, a tray 153 for housing communication equipment, wiring, etc., is provided between the two top plate support parts 151. In addition, a cover 154 is fixed to the front side of the tray 153 to cover the upper side of the tray 153.

[0095] A curtain 162 capable of shielding the interior of the booth device 1A is provided on the front side of the interior of the booth device 1A. Specifically, as shown in Figures 14 and 17, a rail 161 capable of supporting the curtain 162 is attached to the door frame panel 23 via a mounting member. The curtain 162 is then provided to slide along the rail 161 and extend and retract. As a result, even if a transparent glass panel is used for the door 24, the interior of the booth device 1A can be shielded by the curtain 162.

[0096] In this embodiment, as with the booth device 1A shown in Figure 10, it is possible to connect multiple booth devices 1A, which are individual rooms, to form a booth unit (individual room booth). When multiple booth devices 1A are used and connected to form a booth unit (individual room booth), the multiple booth devices 1A can be arranged so that each user of each booth device 1A faces the same direction perpendicular to the direction in which the booth devices 1A are connected (parallel arrangement configuration) (for example, as shown in the booth unit 100 in Figure 10, the booth devices 1 are connected in the left-right direction).

[0097] In the booth unit (private booth) configured as described above, each booth device 1A (and the same applies to booth device 1; the same applies hereinafter) that constitutes each private room has an opening 2a facing upward, and multiple steel panels (side panels 22, door frame panels 23, and back panel 25) that are in contact with the floor are connected at the corners by multiple connecting members, which are support columns 21, forming a rectangular shape in plan view. Sound-absorbing panels 142 are attached to part or all of the surfaces of the side panels 22 and back panel 25 that face the inside of the booth device 1A.

[0098] In the booth device 1A according to the present invention, as described above, by attaching sound-absorbing panels 142 to the side panels 22 and back panel 25 that constitute the peripheral wall 2, reverberation and sound leakage inside the booth device 1A are reduced, making it possible to comfortably conduct web conferences and the like even in a small space. In other words, when a booth unit is constructed using the booth device 1A according to this embodiment, sound insulation is achieved by the steel panels of the side panels 22 and back panel 25, while sound absorption and effective suppression of sound leakage are achieved by the sound-absorbing panels 142.

[0099] Furthermore, the booth unit using the booth device 1A according to this embodiment is configured by attaching sound-absorbing panels 142 to steel panels, which facilitates the construction and dismantling of the booth device 1A. Therefore, it is possible to flexibly respond to changes in the number and layout of booth devices 1A that make up the booth unit.

[0100] In the booth device 1A according to this embodiment, as shown in Figure 17, sound-absorbing panels 142 are attached to the side panels 22 on both the left and right sides. When multiple booth devices 1A are connected to form a booth unit such as the booth unit 100 shown in Figure 10, it is preferable that sound-absorbing panels 142 are attached to at least the steel panels (side panels 22) provided between adjacent booth devices 1A. This makes it difficult for sound to leak into adjacent booth devices 1A.

[0101] Furthermore, in the booth device 1A according to this embodiment, a mounting frame 141 is provided between the steel panel (side panel 22 and back panel 25) and the sound-absorbing panel 142 as an optional mounting member to which optional members can be attached. The mounting frame 141 is concealed by the sound-absorbing panel 142. This allows optional members such as speakers Sa to be attached and detached via the mounting frame 141. Moreover, by suppressing the exposure of the mounting frame 141 inside the booth device 1A, the aesthetic design of the inside of the booth device 1A can be maintained.

[0102] Furthermore, in the booth device 1A according to this embodiment, the sound-absorbing panel 142 is detachably fixed to the mounting frame 141, which is an optional mounting member, via the panel support member 143. As a result, the sound-absorbing panel 142 can be attached to and detached by attaching and detaching the panel support member 143 to and from the mounting frame 141, making it easy to attach and detach the sound-absorbing panel 142 to the side plate 22 and back plate 25.

[0103] Furthermore, when configuring a booth unit using the booth device 1A according to this embodiment, it is preferable that the mounting frame 141 be attachable to both sides of the side plates 22 provided between adjacent booth devices 1A so as to be at the same position in the width direction of the side plates 22. This makes it possible to unify the mounting positions in the front-to-back direction of optional members such as speakers Sa that are installed inside the booth device 1A.

[0104] Furthermore, in the booth device 1A according to this embodiment, a space for inserting wiring is formed between the surface of the steel panel (side plate 22 and back plate 25) and the back surface of the sound-absorbing panel 142 (the space to the side of the mounting frame 141 shown in Figure 19(a)). This prevents wiring from being exposed inside the booth device 1A, allowing wiring to be routed without compromising the aesthetic design of the inside of the booth device 1A.

[0105] Furthermore, by forming a horizontal groove on the back of the sound-absorbing panel 142, it is possible to insert horizontal wiring through the groove. In this case, a wiring receiver can be provided to connect a pair of mounting frames 141-141 in a manner corresponding to the horizontal groove formed in the sound-absorbing panel 142. This makes wiring work easier by mounting the sound-absorbing panel 142 with the cables placed on the wiring receiver.

[0106] Furthermore, in the booth device 1A according to this embodiment, the sound-absorbing panel 142 is divided into five sections in the vertical direction and is individually detachable. This makes the vertical size of each sound-absorbing panel 142 compact, thus facilitating the transport, attachment, detachment, and replacement of the sound-absorbing panels 142.

[0107] Furthermore, when configuring a booth unit using the booth device 1A according to this embodiment, it is preferable to install the top plate 152 so that users of adjacent booth devices 1A face the same direction without facing each other, as shown in the booth unit 100 in Figure 10. This makes it possible to reduce the likelihood of sound leaking into adjacent booth devices 1A, as users will be speaking in different directions from the adjacent booth devices 1A.

[0108] Furthermore, when configuring a booth unit using the booth device according to the present invention, it is also possible to place chairs instead of a tabletop inside the booth device and to set it up so that users of adjacent booth devices face the same direction without facing each other. Even in this case, since the user speaks in a different direction from the adjacent booth device, it is possible to reduce the likelihood of sound leaking into the adjacent booth device.

[0109] Furthermore, when multiple booth devices according to the present invention are connected to form a booth unit (individual booth), the multiple booth devices can be arranged in a series configuration so that each user of each booth device faces the same direction along the direction in which the booth devices are connected. In this case, the doors of the booth devices will be provided on the side panels.

[0110] Furthermore, multiple booth units can be arranged in a series configuration or a parallel configuration, with the units aligned parallel to the direction of connection between them. Additionally, multiple booth units can be arranged in a rotational configuration, allowing each user of each booth unit to face the direction of the adjacent private room in a clockwise or counterclockwise direction in a plan view. [Explanation of symbols]

[0111] 1 Booth device (first embodiment) 1A Booth device (second embodiment) 2 Peripheral wall 2a opening 21 Support column 21a Side cover member 21b Top cover member 21c Protruding part 21d Engagement hole 21e Insertion part 22 Side plate 22a Groove 22b Connecting member 22c Locked part 23 Door frame panel 24 Door 24a Door knob 24b Door closer 25 Back plate 25a Groove 25b Connecting member 31 Roof component 31a Main roof section 31b Engaging portion 32 First louver member 32a First louver section 32b First engaging section 33 Second louver member 33a Second louver section 33b Second engaging section 41 Mounting frame 41a Locking part 41b Frame 41c Support plate 41d Fixing plate 42 Sound absorbing panel 42a Window section 51 Top plate bracket 51a Engaging part 52 Top plate 53 Tray 54 Cover 100 booth units (private booths) 130 Support member 131 Roof member 132 First louver member 132a First louver section 133 Second louver member 141 Mounting frame 141a Locking part 141b Frame 141c Mounting holes 141d Upper cap 141e Mounting section 142 Sound-absorbing panel 142a Locking part 143 Panel support member 143a Locking part 143b Fixing hole 144 Fixing screw 145 Cap 145a Insertion hole 146 Speaker support member 146a Fixed part 146b Speaker support part 147 Speaker fixing screws 151 Tabletop support section 152 Tabletop 153 Tray 154 Cover 161 Rail 162 Curtain H hinge S speaker Sa Speaker D Display I Lighting C Wiring cord L Chuo line Bs Vocalization Booth Bm Measurement Booth Ps: Point of vocalization Pm: Measurement point P Sound-absorbing panel St Arrow

Claims

1. It is a private booth consisting of multiple connected private rooms, The aforementioned private room has an opening facing upward, and multiple steel panels that are in contact with the floor are connected to each other at the corners by multiple connecting members to form a rectangular shape in plan view. The opening is provided with a shielding portion that closes a part of the opening. A sound-absorbing panel is attached to part or all of the surface of the steel panel facing the inside of the private room. A mounting frame is provided between the steel panel and the sound-absorbing panel. The sound-absorbing panel is detachably fixed to the mounting frame. The opening is formed in a rectangular shape, which is the same shape as the private room when viewed from above. The sound-absorbing panels are divided into multiple sections vertically, each having a common shape, and are fixed to the mounting frame in this individual booth.

2. A private room booth according to claim 1, wherein a plurality of sound-absorbing panels are attached to the mounting frame provided on the steel panel provided between at least adjacent private rooms.

3. The private booth according to claim 1 or claim 2, wherein at least one optional component, selected from a speaker, lighting, and a display, can be attached to the mounting frame.

4. The mounting frame is attachable to both sides of the steel panel provided between adjacent private rooms, so as to be in the same position in the width direction of the steel panel, as described in any one of claims 1 to 3.

5. A private booth according to any one of claims 1 to 4, wherein a space for inserting wiring is formed between the surface of the steel panel and the back surfaces of the plurality of sound-absorbing panels.

6. Each of the aforementioned private rooms is furnished with a tabletop and / or a chair. The private booth according to any one of claims 1 to 5, wherein the tabletop and / or the chair are installed so that users of adjacent private rooms face the same direction without facing each other.

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