Partition Set

Abstract

To provide a partition and a partition set capable of creating environment where a Web conference or the like can be held comfortably even when participants of the Web conference or the like and others are present in the same space and of being stored compactly when the Web conference or the like is not held.SOLUTION: A partition 261 comprises a plurality of panels 270 and a hinge part connecting between adjacent panels 270, each panel 270 comprises a substrate 272 formed with a hollow resin board, an acoustic board 273 layered on the substrate 272 and an inner cover part 274 covering a surface exposed at an opposite side of the substrate 272 side of the acoustic board 273 and allowing sound to be passed and the adjacent panels 270 are capable of self-supporting by being rotated at the hinge part and folded and can be arranged so that the acoustic board 273 side is situated at a user side in use.SELECTED DRAWING: Figure 13

Description

[Technical field]

[0001] The present invention provides a partition between an internal space and an external space. Rupa This relates to a partition set. [Background technology]

[0002] Conventionally, there have been partitions that can be assembled as needed (for example, Patent Document 1). However, conventional partitions are difficult to assemble and are bulky when stored. In addition, with the spread of new ways of working (telecommuting, teleworking, coworking, etc.), the use of online conferences using personal computers, etc. for meetings, interviews, etc. is increasing more than ever before. Furthermore, during periods when infection control measures against infectious diseases are required, the use of online conferences, etc. may increase more than usual. However, in a situation where participants in a web conference or the like and other people other than the participants are present in the same space, there is a problem that, for example, the voices of the other people are picked up by the sound of the web conference or the like (microphone input to a personal computer or the like). In addition, there is a problem that, for example, such voices of the other people make it difficult for the participants in the web conference or the like to hear the sound of the conference (output sound from a personal computer or the like). Furthermore, when multiple people in the same room participate in the same web conference or the like using their own personal computers, there is a problem that howling is likely to occur. For this reason, there is a growing demand for simple partitions that can create an environment in which web conferences can be held comfortably even when participants and other people are in the same space, and that can be stored compactly when not holding web conferences. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3161592 Summary of the Invention [Problem to be solved by the invention]

[0004] To provide a partition and a partition set that can create an environment in which a web conference can be held comfortably even if participants of the web conference and other people are present in the same space, and that can be stored compactly when the web conference is not being held. [Means for solving the problem]

[0005] One aspect of the present invention is chair A partition set including a partition disposed behind a user seated on a chair and a desktop partition placed on a desk used by the user, The partition comprises a plurality of panels and a hinge portion connecting adjacent panels, each panel comprising a base material formed of a hollow resin plate, a sound-absorbing board laminated to the base material and having the same size as the base material when viewed from the normal direction, and a sound-absorbing board cover portion covering the surface of the sound-absorbing board exposed on the opposite side to the base material and having the property of allowing sound to pass through, the hinge portion comprises a detachable portion that is detachable from the panel, and a bending portion that bends to allow rotation between adjacent panels, the adjacent panels can stand on their own by being rotated and bent at the hinge portion, and can be positioned so that the sound-absorbing board side faces the user when in use, The tabletop partition comprises a back panel portion arranged to face the user, side panel portions connected to the left and right edges of the back panel portion toward the user, and a top panel portion connected to the upper edge of the back panel portion toward the user and inclining upward as it approaches the user, and the back panel portion and the left and right side panel portions are U-shaped and open toward the user when viewed from above, and are at a height corresponding to the head of a seated user, and sound within the internal space of the tabletop partition is reflected by the back panel portion, side panel portions and top panel portion and is configured to travel from the tabletop partition to the rear of the user, and the partition is configured as a partition set characterized by the fact that multiple panels are arranged to surround the user from behind and are at a height corresponding to the head of a seated user, thereby absorbing sound that travels from the tabletop partition to the rear of the user. [Brief description of the drawings]

[0006] [Figure 1] FIG. 1 is a perspective view illustrating an assembled state of a desktop partition 1 of a first embodiment and a state in which the desktop partition 1 is in use. [Diagram 2] FIG. 2 is a diagram illustrating a hollow resin plate that is the material for each of the plate portions 11 to 16 and the hinge portions H12 to H16 in the first embodiment. [Diagram 3] FIG. 2 is a diagram illustrating the unfolded state of the desktop partition 1 of the first embodiment. [Figure 4] 4 is a cross-sectional view illustrating a hinge portion H14, a beam 14a, and a lock portion 31 according to the first embodiment. FIG. [Diagram 5] 1A to 1C are diagrams illustrating a process of transforming the desktop partition 1 of the first embodiment into a folded state. [Figure 6] FIG. 2 is a diagram showing a folded state of the desktop partition 1 of the first embodiment. [Figure 7] FIG. 13 is a diagram illustrating a state in which a partition set S201 of the second embodiment is in use. [Figure 8] FIG. 13 is a diagram illustrating a state in which a partition set S201 of the second embodiment is in use. [Figure 9] FIG. 13 is a diagram illustrating a state in which a partition set S201 of the second embodiment is in use. [Figure 10] 13 is a diagram illustrating the unfolded state of a desktop partition 201 according to a second embodiment. FIG. [Figure 11] 13 is a cross-sectional view illustrating the configuration of an L-shaped bend in a tabletop partition 201 according to a second embodiment. FIG. [Figure 12] 13 is a diagram illustrating the configuration of a rear partition 261 in the second embodiment. FIG. [Figure 13] 13 is a diagram illustrating the configuration of a single panel 270 according to the second embodiment. FIG. [Figure 14] FIG. 11 is a diagram for explaining a verification test of the soundproofing effect of the second embodiment. [Figure 15] 13A to 13C are diagrams illustrating a verification test of the howling suppression effect of the second embodiment. [Figure 16] FIG. 13 is a diagram illustrating a partition set S301 according to the third embodiment. [Figure 17] 13 is a diagram illustrating an inclined portion 390 of a rear partition 360 in a third embodiment. FIG. [Figure 18] 13 is a diagram illustrating an inclined portion 390B of another configuration according to the third embodiment. FIG. [Figure 19]13 is a diagram illustrating another example of a rear partition 360C according to the third embodiment. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0007] (Embodiment) Hereinafter, an embodiment of the present invention will be described with reference to the drawings. (First embodiment) FIG. 1 is a perspective view illustrating an assembled state of a desktop partition 1 according to a first embodiment, and illustrates a state in which the desktop partition 1 is in use. FIG. 1 is a schematic illustration in which the thickness of each member is omitted. FIG. 2 is a diagram illustrating a hollow resin plate that is the material of each of the plate portions 11 to 16 and the hinge portions H12 to H16 in the first embodiment. FIG. 3 is a diagram illustrating the tabletop partition 1 of the first embodiment in an unfolded state. FIG. 4 is a cross-sectional view illustrating the hinge portion H14, the beam 14a, and the lock portion 31 of the first embodiment. 4(A) and 4(B) are enlarged views showing 4A-4A and 4B-4B cross sections of FIG. 4(C) and 4(D) are diagrams showing the locking portion 31 in a locked state and an unlocked state.

[0008] In the embodiment, a coordinate system is used as appropriate to facilitate explanation and understanding. As shown in Fig. 1, this coordinate system is an orthogonal coordinate system, and represents the left-right direction X (left side X1, right side X2), the front-rear direction Y (front side Y1, rear side Y2 (back side)), and the vertical direction Z (lower side Z1, upper side Z2) of the tabletop partition 1 when in use. Also, as shown in Fig. 3, in the unfolded state, it represents the horizontal direction A and the vertical direction B when the inner surface of the back panel portion 11 is placed in front. As shown in Fig. 1, a user U can place the desktop partition 1 on a desktop (a desk 2) and use it in a room where multiple people can stay (such as an office work space). By placing the desktop partition 1 on the desktop, it is possible to separate the internal space of the desktop from the external space beyond it. As described below, the tabletop partition 1 can be transformed between an assembled state and a folded state. In the assembled state, the tabletop partition 1 is used as a partition.

[0009] As shown in FIGS. 1, 3, etc., the tabletop partition 1 includes a main body 10, sound absorbing sections 21 to 24, and a handle 40. The main body 10 includes a back plate portion 11, a left plate portion 12 (side plate portion), a right plate portion 13 (side plate portion), a top plate portion 14, a left holding plate portion 15, a right holding plate portion 16, hinge portions H12-H16, and lock portions 31-34. As shown in Figure 3 etc., the plate materials constituting the back plate portion 11, left plate portion 12, right plate portion 13, top plate portion 14, left retaining plate portion 15, right retaining plate portion 16, and hinge portions H12 to H16 are not separate but have an integrated structure, and can be manufactured by processing a single plate material. The board material is a light-transmitting, opaque board. When the tabletop partition 1 is in use, the board material has an opacity such that the inside cannot be clearly seen from the periphery of the tabletop partition 1, and a lighting property such that the surrounding light can be let in to the inside.

[0010] As shown in Fig. 2, in order to ensure these functions, a hollow resin plate made of transparent or translucent resin is used as the plate material. The hollow resin plate is lightweight and has excellent compression resistance. In addition, the hollow resin plate of the embodiment has a rigidity sufficient to allow the assembled tabletop partition 1 to stand on the table by itself. In the drawings other than FIG. 2 and FIG. 4(A), the cross-sectional shape of the hollow resin plate is simplified and illustrated as a plate.

[0011] As the hollow resin board, for example, a three-layer air bubble board 51, a two-layer air bubble board 52, a plastic corrugated board 53, etc. can be used. In addition, the material of the hollow resin board is, for example, a polyolefin resin such as polypropylene or polyethylene, a polystyrene resin such as polystyrene, a polyester resin such as polyethylene terephthalate, a polyamide resin such as nylon, etc.

[0012] As shown in FIG. 2(A), the three-layered bubble board 51 is made by laminating three resin sheets 51a to 51c. That is, the three-layered bubble board 51 includes a cap sheet 51b, a liner sheet 51c laminated on the upper surface of the cap sheet 51b (the bulging side of the caps 51d), and a back sheet 51a laminated on the lower surface of the cap sheet 51b. The layers are bonded together by, for example, heat fusion. The cap sheet 51b is a core material in which a large number of caps 51d that bulge out hollow are formed.

[0013] Similarly, as shown in FIG. 2(B), a two-layer bubble board 52 includes a cap sheet 52b and a back sheet 52a laminated on the lower surface of the cap sheet 52b and having a number of caps 52d formed thereon. The thickness of each of the back sheets 51a, 52a, the cap sheets 51b, 52b, and the liner sheet 51c corresponds to the strength, rigidity, and the like required for the tabletop partition 1. Usually, these thicknesses can be set to, for example, about 0.1 mm to 1.5 mm. The shape of the caps 51d, 52d is not limited to the cylindrical shape shown in Figures 2(A) and 2(B), and may be, for example, a truncated pyramid shape, a truncated cone shape, etc. Also, a hollow resin plate formed by a honeycomb structure may be used as the core material.

[0014] As shown in FIG. 2(C), the plastic corrugated cardboard 53 has a hollow portion with a rectangular cross section, in which a number of wall materials 53b serving as a core are arranged in rows between upper and lower plate materials 53a, 53c.

[0015] In this way, it is preferable that the hollow resin plate has a structure in which a core portion (51b-53b) that has been subjected to three-dimensional processing to form a hollow structure and a plate-shaped exterior portion (51a-53a, 51c, 53c) is laminated on at least one of the front and back surfaces of the core portion. The total thickness of the hollow resin plate is preferably from 1 mm to 100 mm, and more preferably from 2 mm to 50 mm.

[0016] In addition, the three-layer air bubble board 51, the two-layer air bubble board 52, and other air bubble boards can be easily manufactured from a single continuous hollow resin board. Furthermore, such air bubble boards are easy to manufacture because they can be manufactured in a series of continuous steps.

[0017] As shown in Fig. 1 etc., the size of the main body 10 in the assembled state is large enough to be placed on a general office desk 2. As an example, the outer shape of the main body 10 is about 700 to 800 mm in the left-right direction X (the length between the left plate portion 12 and the right plate portion 13) and about 400 to 500 mm in the front-rear direction Y (the length between the tip of the front side Y1 of the left plate portion 12 and the right plate portion 13 and the back surface (surface of the rear side Y2) of the back plate portion 11). In addition, the height from the desk top to the top of the top plate portion 14 is about 800 mm, and the height of the left plate portion 12 and the right plate portion 13 is about 400 to 500 mm.

[0018] The back plate portion 11, the left plate portion 12, the right plate portion 13, the top plate portion 14, the left supporting plate portion 15, and the right supporting plate portion 16 have shapes and sizes corresponding to these external shapes. The outer shapes of the back plate portion 11, the left plate portion 12, the right plate portion 13, and the top plate portion 14 are rectangular, square, or the like. The outer shape of the back panel 11 is the same as that of the top panel 14. Therefore, as described below, in the folded state, the back panel 11 and the top panel 14 can be folded in half. A beam 14a having a U-shaped cross section is attached to the tip of the top plate portion 14 (see FIG. 4(B)). The beam 14a can be made of resin or the like. The beam 14a reinforces the top plate portion 14, for example, to prevent the top plate portion 14 from bending significantly during use. Note that if the top plate portion 14 alone has sufficient strength, the beam 14a is not necessary. The left holding plate 15 is pentagonal in shape.

[0019] The hinge portions H12 to H16 are portions that rotatably connect adjacent plate portions. The hinge portion H12 is provided on the left side of the back plate portion 11 and connects the back plate portion 11 and the left plate portion 12 together. The hinge portion H13 is provided on the right side of the back plate portion 11 and connects the back plate portion 11 and the right plate portion 13 together. The hinge portion H14 is provided on the upper side of the back plate portion 11 and connects the back plate portion 11 and the top plate portion 14 together. The hinge portion H15 is provided on the left side of the top plate portion 14 and connects the top plate portion 14 and the left holding plate portion 15 together. The hinge portion H16 is provided on the right side of the top plate portion 14 and connects the top plate portion 14 and the right holding plate portion 16 together.

[0020] The hinge portions H12 to H16 have the same configuration. As shown in Figs. 3 and 4(A), the hinge portion H14 includes a connection piece H14a and fold lines H14b (shown by two-dot chain lines in Fig. 3) provided on the sides facing the connection piece H14a. The connection piece H14a is a plate portion disposed between the back plate portion 11 and the top plate portion 14. The fold lines H14b are provided between the connecting pieces H14a and the back plate portion 11 and the top plate portion 14 that are continuous therewith. The fold line H14b is a V-shaped groove, half cut, or the like provided in the plate material. This allows the connection piece H14a and the plate parts 11 and 14 connected thereto to be rotatably connected. For example, a method of forming the V-shaped groove may be to press a heated iron with a right-angled cross-sectional tip against the plate material. The other hinge portions H12, H13, H15, and H16, like the hinge portion H14, have connecting pieces H12a, H13a, H15a, and H16a, and fold lines H12b, H13b, H15b, and H16b provided on opposing sides of the connecting pieces, respectively.

[0021] In this way, adjacent plate portions are connected rotatably by being connected by the hinge portions H12 to H16. Furthermore, since the hinge portions H12 to H16 have the connection pieces H12a to H16a, the adjacent plate portions can rotate without being strained.

[0022] The locking portions 31 to 34 are members that detachably connect the plate portions together. 4(C) and 4(D), the locking portion 31 has a pair of protrusions 31a and a hole 31b. The protrusions 31a are press-fitted into the hole 31b to lock (i.e., couple) the two together, and the lock is released by removing the protrusions 31a from the hole 31b. In an assembled state, the locking portion 31 connects the left plate portion 12 and the left holding plate portion 15. The protrusion 31a is provided so as to protrude from the left plate portion 12, and the hole portion 31b is provided so as to penetrate the left holding plate portion 15. On the other hand, the lock portion 33 is a member that connects the left plate portion 12 and the left holding plate portion 15 (see FIG. 5) in the folded state (see FIG. 6). The protrusion 33a is provided on the left holding plate portion 15, and the hole portion 33b is provided on the left plate portion 12. The locking portions 32 (32a, 32b) and 34 (34a, 34b) are provided on the right plate portion 13 and the right holding plate portion 16, similar to the locking portions 31 and 33.

[0023] The sound absorbing parts 21-24 are provided on the surfaces of the back panel 11, the left panel 12, the right panel 13, and the top panel 14 that will be the inner surfaces (surfaces facing the internal space) of the tabletop partition 1 when in use. The sound absorbing parts 21-24 can be attached to these surfaces with, for example, hook-and-loop fasteners, double-sided tape, etc. The outer shape of the sound absorbing parts 21-23 is one size smaller than the back panel 11, the left panel 12, and the right panel 13. On the other hand, the outer shape of the sound absorbing part 24 is approximately half the size of the top panel 14, and is large enough to cover half of the rear side Y2 of the inner surface of the top panel 14 when in use. The thickness of the sound absorbing parts 21 to 24 may be such that the sound absorbing effect is ensured, and is, for example, about 10 mm. The sound absorbing parts 21 to 24 are made of a material such as glass wool, various types of resin foam, and nonwoven fabrics of various types of resin fibers. The handle 40 is for carrying the bag by hand (see FIG. 6). The handle 40 is provided on the connection piece H14a of the hinge portion H14.

[0024] (Assembled state) The assembled state will be described in detail while explaining the process of transforming from the unfolded state to the assembled state. As shown in FIG. 3, the left plate portion 12 is positioned so as to form an angle of 90 degrees with the back plate portion 11 by rotating (see arrow θ12) at a hinge portion H12. The right plate portion 13 is rotated and positioned in the same manner as the left plate portion 12 (see arrow θ13). As shown in FIG. 1, this allows the back panel 11, the left panel 12, and the right panel 13 to be U-shaped when viewed from the upper side Z2, so that the tabletop partition 1 can stand on the desk 2 by itself. The back plate portion 11 is disposed parallel to a vertical plane (ZX plane), and the inner surface of the back plate portion 11 is disposed so as to face the user U.

[0025] As shown in FIG. 3, the top plate portion 14 is rotated relative to the back plate portion 11 at a hinge portion H14 (see arrow θ14). The left holding plate 15 is integral with the top plate 14 and rotates at a hinge H14 relative to the back plate 11. The left holding plate 15 rotates at the hinge H15 (see arrow θ15) so as to form an angle of 90 degrees with the back plate 11. The side 15a of the left holding plate 15 is arranged parallel to the front-rear direction Y (see FIG. 1).

[0026] With the left holding plate 15 disposed inside (to the right) of the left plate 12 in the left-right direction X, the left holding plate 15 and the left plate 12 are joined together by the lock portion 31 . The right holding plate 16 is rotated and positioned in the same manner as the left holding plate 15 , and the right holding plate 16 and the right plate 13 are connected together by a lock portion 32 . As a result, the top panel 14 is held by the left holding panel 15 and the right holding panel 16, and is in a position that is inclined toward the upper side Z2 as it approaches the near side Y1, and is disposed in a position that constitutes the top of the tabletop partition 1. The inclination angle of the top panel 14 with respect to the horizontal plane (the top surface of the desk 2) is about 45 degrees, in other words, the angle between the top panel 14 and the back panel 11 is about 135 degrees. The top plate 14 is held by the left holding plate 15 and the right holding plate 16, and is therefore kept from rotating at the hinge portion H14, so that the top plate 14 is kept in an inclined state at the above-mentioned inclination angle.

[0027] As shown in FIG. 1, when in use, the table top portion 14 is inclined, so that a sufficient space is secured above the user U's head. Moreover, no sound absorbing portion is provided on approximately half of the front side Y1 of the tabletop portion 14. Moreover, no sound absorbing portion is provided on the left holding plate portion 15 and the right holding plate portion 16. In this way, since no sound absorbing portion is provided on the portion constituting the upper side Z2 of the tabletop partition 1, the tabletop partition 1 can admit outside light to the inside. Furthermore, since the sound absorbing sections 21-23 are formed slightly smaller than the back panel 11, the left panel 12, and the right panel 13, the tabletop partition 1 can admit light from outside the sound absorbing sections 21-23 and also from the connecting pieces H12a-H16a of the hinge sections H12-H16. Therefore, the tabletop partition 1 can admit sufficient light into the internal space, so that the user U does not feel oppressive.

[0028] In addition, the tabletop partition 1 is U-shaped and has a top panel 14, which improves sound insulation performance (sound leakage from the internal space to the external space, and sound entering from the external space to the internal space). Furthermore, the sound absorbing sections 21-24 can further improve the effect of suppressing sound leakage from the internal space to the external space. In addition, the sound absorbing sections 21-24 absorb sound inside the tabletop partition 1, thereby suppressing sound echoes. Also, since the top panel 14 is inclined, sound inside can be appropriately released to the outside, improving the effect of suppressing sound echoes. The desktop partition 1 can suppress the echo of the sound, thereby suppressing the howling that occurs when the user U is communicating with a remote location. The voice communication is a two-way call using a speaker and a microphone. The form of the voice communication is not limited, and may be, for example, a telephone call, a web conference, a video conference, etc. In this way, the desktop partition 1 can create an environment in which a web conference or the like can be held comfortably even in a situation where participants in the web conference or the like and other people are present in the same room or the like.

[0029] (folded state) FIG. 5 is a diagram illustrating a process of transforming the desktop partition 1 of the first embodiment into a folded state. 5(A) and 5(B) are enlarged views showing the AA and BB cross sections of FIG. 5(C). FIG. 5C shows the state in which the left and right plate portions 12, 13 and the back plate portion 11 are overlapped, and the left and right holding plate portions 15, 16 and the top plate portion 14 are overlapped, from the unfolded state. FIG. 6 is a diagram showing the folded state of the desktop partition 1 of the first embodiment. FIG. 6A is a cross-sectional view taken along line BB of FIG. 6B. FIG. 6(B) is a view of the tabletop partition 1 in the folded state seen from the top panel portion 14 side.

[0030] The configuration of the tabletop partition 1 in the folded state will be described while explaining the process in which the tabletop partition 1 changes from the unfolded state to the folded state. As shown in Figures 5(B) and 5(C), the left plate portion 12 is positioned so as to overlap the back plate portion 11 by being rotated inward in the lateral direction A relative to the back plate portion 11 at the hinge portion H12 (see arrow θ12 in Figure 3). The hinge portion H12 has a connecting piece H12a. Therefore, the back plate portion 11 and the left plate portion 12 are arranged to overlap each other in the thickness direction while sandwiching the two sound absorbing portions 21, 22. In other words, the length of the connecting piece H12a (the length between the back plate portion 11 and the left plate portion 12) is set to an extent that the back plate portion 11 and the left plate portion 12 can sandwich the sound absorbing portions 21, 22. Similar to the left plate portion 12, the right plate portion 13 is disposed so as to overlap the back plate portion 11 with the two sound absorbing portions 21, 23 sandwiched therebetween.

[0031] The right plate portion 13 and the left plate portion 12 are formed to have a size such that they do not overlap with each other when the right plate portion 13 and the left plate portion 12 are overlapped with the back plate portion 11. As shown in FIG. 3, the length L12 in the horizontal direction A of the left plate portion 12 and the length L13 in the horizontal direction A of the right plate portion 13 are both approximately half (or less than half) of the length L11 in the horizontal direction A of the back plate portion 11.

[0032] As shown in Figures 5(A) and 5(C), the left holding plate 15 is positioned so as to overlap the top plate 14 by being rotated inward in the vertical direction B with respect to the top plate 14 at the hinge part H15 (see arrow θ15 in Figure 3). The hinge portion H15 has a connecting piece H15a. Therefore, the left holding plate portion 15 and the top plate portion 14 are arranged to overlap with each other in the thickness direction with the sound absorbing portion 24 sandwiched therebetween. In other words, the length of the connecting piece H15a (the length between the left holding plate portion 15 and the top plate portion 14) is set to an extent that the left holding plate portion 15 and the top plate portion 14 can sandwich the sound absorbing portion 24. Similar to the left holding plate 15, the right holding plate 16 is disposed so as to overlap the top plate 14 with the sound absorbing portion 24 sandwiched therebetween.

[0033] The top plate 14, the left holding plate 15, and the right holding plate 16 are rotated together at the hinge H14 while overlapping each other (see θ17 in FIG. 5(C)). The top plate 14 is rotated 180 degrees so that the left holding plate 15 and the right holding plate 16 overlap the left plate 12 and the right plate 13, respectively. The left holding plate 15 and the left plate 12 are locked together by a locking portion 33. Similarly, the right holding plate 16 and the right plate 13 are locked together by a locking portion . As a result of the above, the tabletop partition 1 is transformed into the folded state.

[0034] Here, the outer shapes (sizes in the horizontal direction A and vertical direction B) of the top plate portion 14 and the back plate portion 11 are substantially equal to each other. Therefore, the outer shape of the folded portion of the top plate portion 14, left holding plate portion 15 and right holding plate portion 16 is almost the same as the outer shape of the folded portion of the back plate portion 11, left plate portion 12 and right plate portion 13, so that both can be folded exactly in half. 6(A), the hinge H14 has a connecting piece H14a. Therefore, the back plate 11 and the top plate 14 can be folded flat in the thickness direction while sandwiching the left plate 12, the left holding plate 15, and the three sound absorbing parts 21, 22, and 24. That is, the length of the connecting piece H14a (the length between the back plate 11 and the top plate 14) is set to an extent that the back plate 11 and the left plate 12 can sandwich the sound absorbing parts 21, 22, and 24. In addition, since the tabletop partition 1 is configured symmetrically, the same is true for the back panel portion 11, right panel portion 13, top panel portion 14, right support panel portion 16, etc.

[0035] In this way, the tabletop partition 1 can be folded compactly. Also, since each plate portion is restricted by the locking portions 33 and 34 so as not to rotate at each of the hinge portions H12 to H16, the tabletop partition 1 can be stably maintained in the folded state. Therefore, the tabletop partition 1 is convenient for storage, transportation, etc. In addition, the tabletop partition 1 is provided with a handle 40, making it easy to carry when folded.

[0036] Note that the above explanation has been given of examples of transforming the desktop partition 1 between the unfolded state and the assembled state, and between the unfolded state and the folded state, but it is also possible to transform it between the assembled state and the folded state without passing through the unfolded state.

[0037] As described above, the tabletop partition 1 of this embodiment is easy to assemble when in use and can be folded compactly when not in use, making it convenient. In addition, the tabletop partition 1 has sufficient lighting when in use and can suppress sound echoes in the internal space, thereby suppressing howling during communication.

[0038] Second embodiment Next, a second embodiment of the present invention will be described. In the following description and drawings, parts that perform similar functions in each embodiment and in other embodiments will be given the same names as appropriate, and the same reference numerals or the same reference numerals at the end (last two digits) will be given to avoid duplicate explanations. 7 to 9 are diagrams for explaining the state when the partition set S201 of the second embodiment is used. FIG. 7 is a perspective view of the partition set S201 in use. FIG. 8 is a diagram for explaining the positional relationship of each component when the partition set S201 is in use, as viewed from the top side Z2. FIG. 9 is a diagram for explaining the positional relationship of each component when the partition set S201 is in use, as viewed from the right side X2. FIG. 10 is a diagram illustrating the unfolded state of the desktop partition 201 according to the second embodiment. FIG. 11 is a cross-sectional view illustrating the configuration of an L-shaped bend of a tabletop partition 201 according to the second embodiment.

[0039] As shown in FIGS. 7 to 9, the partition set S201 is a combination of a tabletop partition 201 and a rear partition 261. The partition set S201 is used when a user U uses a desk 2 while seated in a chair. The desk-top partition 201 is placed on the desk 2 placed on a floor G, and the rear partition 261 is placed on the floor G behind the user U.

[0040] (Tabletop Partition 201) As shown in FIG. 7, FIG. 10, etc., the tabletop partition 201 has a configuration almost similar to that of the tabletop partition of the first embodiment, and differs from the first embodiment mainly in the following points. (1) The lengths L212, L213 (see FIG. 10) of the right plate portion 13 and the left plate portion 12 in the front-rear direction Y are longer than the lengths L12, L13 (see FIG. 3) in the first embodiment. This improves the effect of suppressing sound leakage from the internal space of tabletop partition 201 to the left and right outside. Due to the above length settings, the end of the left plate portion 12 (left end in FIG. 10) and the end of the right plate portion 13 (right end in FIG. 10) overlap in the thickness direction when folded. However, since the sound absorbing portions 22 and 23 have the same length as those in the first embodiment, they do not overlap in the thickness direction when folded. Therefore, the tabletop partition 201 does not become excessively bulky when folded.

[0041] Furthermore, the shapes of the top plate 14, the left holding plate 15, and the right holding plate 16 are appropriately changed from those of the first embodiment according to the lengths of the right plate 13 and the left plate 12 in the front-rear direction Y. However, the inclination angle of the top plate 14 is about 45 degrees with respect to the horizontal plane, similar to the first embodiment.

[0042] (2) The four hinge portions H12, H13, H15, and H16 respectively include connecting pieces H12a, H13a, H15a, and H16a, fold lines H12b, H13b, H15b, and H16b, and L-shaped bent portions H212c, H213c, H215c, and H216c. The configurations of the hinge portions H12, H13, H15, and H16 are similar to those of the first embodiment. Also, the configurations of the connection pieces H12a, H13a, H15a, and H16a and the fold lines H12b, H13b, H15b, and H16b are similar to those of the first embodiment.

[0043] The L-shaped bent portion H212c is a portion that connects the back plate portion 11 and the connection piece H12a at a right angle so as not to rotate. The L-shaped bent portion H212c can be processed, for example, as follows. As shown in Fig. 11(A), a V-shaped groove 255 is formed by pressing a trowel or the like against a hollow resin board 250 (the example in Fig. 11 shows a three-layer air bubble board 51), and then, as shown in Fig. 11(B), the board is rotated 90 degrees while the inside of the V-shaped groove is thermally melted. As a result, two surfaces 255a in the V-shaped groove are welded in a contacting state. The L-shaped bent portion H212c is maintained in a state in which the back plate portion 11 and the connecting piece H12a cannot be opened or closed and are connected at a right angle. After the V-groove 255 is processed, the back plate portion 11 and the connection piece H12a do not normally develop into a flat plate shape as shown in FIG. The method of processing the L-shaped bent portion H212c is not limited to the above. For example, the two surfaces 255a of the V-shaped groove 255 may be joined with an adhesive or the like, or a hollow resin plate may be bent into an L shape by heat pressing or the like.

[0044] The L-shaped bent portions H213c, H215c, and H216c have the same configuration as the L-shaped bent portion H212c, and therefore detailed description thereof will be omitted.

[0045] With the above configuration, the back plate 11 and the connecting piece H12a are reliably maintained in a right-angled state in the assembled state and the folded state. In addition, the left plate 12 and the connecting piece H12a are stably maintained in a 180-degree open state by being locked by the locking portion 31. This makes the corner portion connecting the back plate 11 and the left plate 12 (connecting piece H12a) sturdy and stable. The other three corners are similar.

[0046] (Rear partition 261) FIG. 12 is a diagram illustrating the configuration of a rear partition 261 according to the second embodiment. FIG. 12(A) is a view of the rear partition 261 seen from the longitudinal direction. FIG. 12(B) is a view of the surface of rear partition 261 as viewed from the normal direction. FIG. 12 shows a state in which two of the four panels 270 are connected by hinge portions 280. FIG. 13 is a diagram illustrating the configuration of a single panel 270 according to the second embodiment. FIG. 13(A) is a diagram illustrating a cross-section of panel 270 (a cross-section taken along line AA in FIG. 13(B)). FIG. 13B is a view of the panel 270 alone as viewed from the base material 272. FIG. 13(C) is an enlarged view of a portion of the cross section of panel 270 alone (portion C indicated by the two-dot chain line in FIG. 13(A)).

[0047] The rear partition 261 includes four panels 270 and a hinge portion 280 (hook and loop fastener). Each panel 270 is, for example, a plate-like member with a height of about 1200 mm, a width of about 450 mm, and a thickness of about 10 to 20 mm. As shown in FIGS. 12 and 13, the panel 270 includes a panel body 271 and an outer cover portion 276 . The panel body 271 is a plate-like member that constitutes the main portion of the panel 270, and the outer cover portion 276 is a member that covers the entire panel body 271.

[0048] As shown in FIG. 13, a panel body 271 includes a base material 272, a sound absorbing board 273, and an inner cover portion 274 (sound absorbing board cover portion). The base material 272 and the sound absorbing plate 273 are plate materials having the same size in the vertical and horizontal directions (size when viewed from the normal direction to the surface).

[0049] The base material 272 is a plate material formed by a hollow resin plate. The hollow resin plate is the same as that described in the first embodiment, and three-layer air bubble board, two-layer air bubble board, plastic corrugated board, etc. can be used. In this embodiment, an example of the hollow resin plate being a three-layer air bubble board 51 will be described.

[0050] The sound absorbing board 273 is a board material having the property of absorbing sound. As shown in Fig. 13(C), the sound absorbing board 273 is laminated on one surface of the base material 272. The sound absorbing board 273 and the base material 272 are bonded together with an adhesive 273a or the like. In the example of Fig. 13(C), the sound absorbing board 273 is laminated on the base material 272, i.e., the back sheet 51a side of the hollow resin board, but is not limited thereto and may be laminated on the liner sheet 51c side. The sound absorbing board 273 may be made of the same material as the sound absorbing sections 21 to 24 of the tabletop partition 201. The sound absorbing board 273 is preferably made of a material with a high sound absorbing effect, and may be made of, for example, glass wool, foamed materials of various resins, nonwoven fabrics of various resin fibers, or the like. In this embodiment, an example in which the sound absorbing board 273 is made of glass wool will be described. Glass wool is a board material in which glass fibers are bonded together with a binder (such as phenolic resin).

[0051] 13, the inner cover part 274 is made of a fabric having a property of transmitting sound, and for example, a mesh-like fabric of glass fiber can be used. Therefore, the inner cover part 274 has a property of transmitting sound, and its thickness is sufficiently thinner than the thicknesses of the base material 272 and the sound-absorbing board 273. The inner cover portion 274 covers the entire exposed surface (the surface opposite to the base material 272) of the sound absorbing plate 273, and the peripheral portion thereof is folded toward the rear surface side of the base material 272. The peripheral portion of the inner cover portion 274 is fixed to the peripheral portion of the rear surface of the base material 272 by an adhesive or the like. Thereby, the inner cover portion 274 can protect the sound absorbing board 273 and can also suppress glass fibers that have fallen off and separated from the sound absorbing board 273 from being dispersed from the panel main body 271, etc.

[0052] With the above-mentioned configuration, when the rear partition 261 is freestanding, the panel main body 271 has sufficient strength to be able to stand on its own using the base material 272 without having to be provided with a frame or plate material such as metal. Also, the panel main body 271 is sufficiently lightweight compared to those provided with a frame or plate material such as metal.

[0053] The outer cover portion 276 is a bag-shaped member disposed so as to cover the entire panel main body 271. Since a line fastener 276a (see FIG. 13(A)) is provided on one side of the outer cover portion 276, the outer cover portion 276 is detachable from the panel main body 271. The outer cover portion 276 is formed of a fabric material (for example, fabric of vegetable fiber, organic fiber, etc.) Therefore, the outer cover portion 276 has a property of allowing sound to pass through. The surface of the outer cover portion 276 is raised in a loop shape, so that the surface of the outer cover portion 276 functions as the loop surface side (female side) of a hook-and-loop fastener. Since the outer cover portion 276 covers the entire panel body 271, the main part that becomes soiled when the rear partition 261 is in use is the outer cover portion 276. When the outer cover portion 276 becomes soiled, it can be separated from the panel body 271 and washed, and when it becomes damaged, it can be repaired and replaced at low cost.

[0054] The outer cover part 276 may have different fabric colors on one side and the other side. In this case, the user U can easily distinguish the sides of the panel main body 271 (the side on the base material 272 side and the side on the sound absorbing board 273 side) by checking the color of the outer cover part 276 when the panel main body 271 is placed in the outer cover part 276. In this case, the side of the outer cover part 276 on the sound absorbing board 273 side (i.e., the side that is placed on the inside when the rear partition 261 is in use) may be green in color. In this case, an imaging device (such as a personal computer) used in a web conference or the like can easily perform chromakey processing of an image captured on this side.

[0055] The hinge portion 280 is a member that connects adjacent panels 270. It is preferable that the hinge portion 280 is attached to at least two locations, the upper and lower portions, of the connecting portion of the adjacent panels 270 so that the two adjacent panels 270 can be stably connected. For this reason, the rear partition 261 of the embodiment uses six hinge portions 280 to connect the four panels 270. In order for the panel 270 to stand on its own, at least two panels 270 need to be connected. Therefore, the rear partition 261 may be used in a configuration of two sets of two panels 270 (i.e., two-panel double-panel). In this case, the number of hinge parts 280 may be four.

[0056] Hinge portion 280 is a member on the hook side (male side) of the hook-and-loop fastener. In other words, the hinge portion 280 is formed of a fabric (bending portion) having sufficient flexibility, and one side (detachable portion) of the fabric is a raised member like the hook (male side) of a hook-and-loop fastener. Therefore, the hinge portion 280 can be detachably attached to any part of the surface of the outer cover portion 276 of the panel 270 by the function of the hook-and-loop fastener.

[0057] 7 and 12, in a state in which the four panels 270 are arranged so that their longitudinal direction is in the vertical direction Z and the panels 270 are arranged consecutively in the left-right direction, the hinge portion 280 is attached so as to straddle the long sides of the adjacent panels 270. In this way, the adjacent panels 270 are connected in a state in which they can rotate around an axis in the vertical direction Z.

[0058] [How to use partition set S201] The method of using the partition set S201 will be described. Note that the following description is a general method of use, and the arrangement of the partition set S201 may be changed as appropriate. The process of transforming the desktop partition 201 between the assembled state and the folded state is the same as in the first embodiment, so detailed description will be omitted. During a web conference or the like, a user U can set up and use the partition set S201 on the desk 2, chair, and surrounding area of ​​his / her own desk or the like in the following procedure.

[0059] (when used) (1) As shown in FIG. 7 etc., the assembled desktop partition 201 is placed on the desk 2. In this case, if the ends of the left and right plate portions 12 and 13 on the near side Y1 are brought as close as possible to the end of the near side Y1 of the desk 2, the soundproofing effect can be improved.

[0060] (2) As shown in FIG. 12 etc., the four panels 270 of the rear partition 261 are connected by hinge portions 280. (3) As shown in Fig. 7, the user U stands on the near side Y1 of the desk 2 and stands the rear partition 261 on the floor G (the installation surface of the rear partition 261) on the near side Y1 of the user U and the chair (i.e., behind the user U when in use). In this case, the rear partition 261 is positioned so that the sound-absorbing panel 273 side faces the rear side Y2. By rotating adjacent panels 270 into a slightly folded state (so that the angle between adjacent panels 270 is, for example, between about 90 degrees and 150 degrees), rear partition 261 can easily stand up on its own.

[0061] As shown in Figures 7, 8, etc., the user U arranges the four panels 270 so as to surround the user U from the front side Y1. In addition, in the left-right direction X, the panels 270 arranged at both ends are arranged so that their ends are outside the left plate portion 12 and the right plate portion 13 of the tabletop partition 201. In this case, the soundproofing effect can be improved by bringing the ends of the panels 270 arranged at both ends as close as possible to the end of the front side Y1 of the desk 2. This completes the installation of the partition set S201. In this state, the user U can sit in a chair and hold a web conference or the like.

[0062] (When not in use) When the user U is not holding a Web conference or the like, the user U can store and transport the partition set S201 in the following manner. (1) The tabletop partition 201 is transformed into a folded state. (2) The hinge portions 280 are separated from the panels 270 to separate the four panels 270. Then, the separated panels 270 are stacked. In this way, the user U can compact the partition set S201 and store it. Because the tabletop partition 201 and the rear partition 261 can be transformed into such a compact state and are lightweight, the user U can easily carry them between a storage location (warehouse, etc.) and a usage location (such as the user's desk in an office) within the facility. Furthermore, the partition set S201 can be easily arranged in a state for use and compacted for storage, etc., and can be completed in a short time.

[0063] [Soundproofing effect of partition set S201] The soundproofing effect from the inside to the outside of the space partitioned by the partition set S201 and the soundproofing effect from the outside to the inside will be described. (Soundproofing effect from inside to outside of partition set S201) The sounds generated inside the partition set S201 are mainly two types: sound S1 from a sound source S (such as a speaker of a personal computer placed on the desk 2 when headphones are not used) placed inside the desktop partition 201, and voice S2 emitted by a user U of the partition set S201.

[0064] (Sound S1 from sound source S in the internal space) The sound source S is placed in the internal space of the tabletop partition 201 . As described in the first embodiment, the tabletop partition 201 suppresses the leakage of sound generated within the internal space. However, the tabletop partition 201 covers the entire rear side Y2 of the sound source S, but is open on the front side Y1. For this reason, sound S1 from the sound source S (including reflected and reverberated sounds from the back panel 11, left panel 12, right panel 13, and top panel 14) leaks little to the rear side Y2, but travels to the front side Y1.

[0065] The two panels 270 on both the left and right ends of the rear partition 261 are disposed outside the left and right plate portions 12 and 13 of the tabletop partition 201. In addition, in the height direction, the upper end of the rear partition 261 and the upper ends of the left and right plate portions 12 and 13 are at approximately the same height and correspond to each other. This is because the height from the floor G to the upper ends of the left and right plate portions 12 and 13 is approximately 1100 to 1200 mm (the height of a typical desk is approximately 700 mm, and the height of the upper ends of the left and right plate portions 12 and 13 is approximately 400 to 500 mm), which is approximately equal to the height (approximately 1200 mm) of the panels 270 of the rear partition 261. Therefore, the rear partition 261 can suppress the sound S1a traveling from the tabletop partition 201 to the front side Y1 from leaking to the outside in the left-right direction. In addition, the top panel portion 14 reflects most of the components of the sound S1 traveling in the internal space toward the upper side Z2 toward the front side Y1. The rear partition 261 can also prevent the sound S1, which is reflected in this way and travels from the tabletop partition 201 to the front side Y1, from leaking to the outside.

[0066] (Soundproofing effect of sound S1 from sound source S reaching rear partition 261) The sound S1 of the sound source S that reaches the rear partition 261 from the internal space of the tabletop partition 201 has a component that is absorbed by the rear partition 261 and a component that is reflected by the rear partition 261, as will be described below. (Sound S1 component from sound source S absorbed by rear partition 261) 13(C), panel 270 has outer cover portion 276, inner cover portion 274, sound-absorbing board 273, base material 272, and outer cover portion 276 arranged from the inside to the outside of the space partitioned by rear partition 261. In addition, outer cover portion 276 and inner cover portion 274 allow many sound components to pass through. For this reason, sound S1 from sound source S that reaches rear partition 261 passes through outer cover portion 276 and inner cover portion 274, reaches sound-absorbing board 273, and is absorbed by sound-absorbing board 273. In this way, sound-absorbing board 273 absorbs sound that travels toward the rear of user U.

[0067] (Sound S1 component from sound source S reflected by rear partition 261) Of the sound S1 from sound source S that reaches panel 270, most of the components that are not absorbed by panel 270 and are reflected by panel 270 reverberate within the space partitioned by rear partition 261 and tabletop partition 201. The reverberating sound components are attenuated while reverberating, or are absorbed by sound absorbing sections 21-24 of tabletop partition 201 and sound absorbing board 273 of panel 270.

[0068] As described above, sound S1 from sound source S that reaches rear partition 261 from the internal space of tabletop partition 201 is prevented from leaking from the space partitioned by rear partition 261 and tabletop partition 201 to the external space.

[0069] (S2, voice from user U) When the user U is seated in the chair, the height from the floor G to the top of the head varies depending on the height of the user U, but is generally about 1100 to 1250 mm. The height of the desk 2 is generally about 700 mm, and the user U adjusts the height of the chair so that it is easy to work at the height of the desk 2. Therefore, even if the height of the user U varies, the height to the top of the head in a seated state is generally within the above range. Therefore, when the user U is seated on the chair, the height from the floor G to the mouth of the user U is approximately 1050 mm or less. Also, as described above, the height from the floor G to the upper ends of the left and right plate portions 12 and 13 is approximately 1100 to 1200 mm. In this way, the heights of the left and right plate portions 12 and 13 correspond to the height of the user U's head. For this reason, most of the components of the voice S2 uttered by the user U travel to the internal space of the tabletop partition 201 (the space partitioned by the left and right panel portions 12, 13, and the top panel portion 14). Even if the height from the floor G to the mouth of the user U is higher than the height from the floor G to the upper ends of the left and right boards 12 and 13, the left and right holding boards 15 and 16 also separate the internal and external spaces of the tabletop partition 201. Furthermore, in situations such as web conferences, the user U usually speaks while facing slightly downward Z1. For this reason, most components of the voice S2 emitted by the user U travel to the internal space of the tabletop partition 201.

[0070] The components of the voice S2 that have traveled into the internal space of the tabletop partition 201 in this way are absorbed by the sound absorbing sections 21-24 in the tabletop partition 201. The components of the voice S2 that have traveled into the internal space of the tabletop partition 201 also travel from the internal space to the front side Y1, similar to the sound S1 of the sound source S. The rear partition 261 can absorb the components of the voice S2 that have traveled from the internal space of the tabletop partition 201 to the front side Y1 in this way, similar to the sound S1 of the sound source S. Therefore, the components of the voice S2 uttered by the user U are prevented from leaking from the space partitioned by the rear partition 261 and the tabletop partition 201 to the outside space.

[0071] (Soundproofing effect from outside to inside of partition set S201) Of the sounds outside the partition set S201, sounds S3 around the tabletop partition 201 are blocked by the tabletop partition 201 so as not to advance into the internal space of the tabletop partition 201. As described above, the height of the panel 270 of the rear partition 261 (approximately 1200 mm) corresponds to the height from the floor G to the top of the head of the user U (approximately 1100 to 1250 mm). Therefore, sound S4 around the rear partition 261 out of sounds outside the partition set S201 is blocked by the rear partition 261 so as not to advance into the interior of the rear partition 261. In this way, sounds S3 and S4 outside the partition set S201 are prevented from directly reaching the ears of the user U.

[0072] Furthermore, hollow resin plates are arranged on the exterior space side of tabletop partition 201, since back panel 11, left panel 12, right panel 13, top panel 14, left support panel 15, and right support panel 16 are exposed. Therefore, most of the components of sound S3 around tabletop partition 201 are reflected by the hollow resin plates. 13, panel 270 has outer cover part 276 and base material 272 arranged from the outside to the inside of the space partitioned by rear partition 261. Since outer cover part 276 has a property of transmitting sound, sound S4 around rear partition 261 passes through outer cover part 276 and reaches base material 272. Since base material 272 is a hollow resin, it reflects sound S4 that reaches in this manner. Therefore, the partition set S201 can prevent external sounds S3 and S4 from passing through the boards of the tabletop partition 201 and the rear partition 261, thereby improving the soundproofing effect.

[0073] [Verification of soundproofing effect from inside to outside of partition set S201] FIG. 14 is a diagram for explaining a verification test of the soundproofing effect of the second embodiment. By making a prototype of the partition set S201, we verified the soundproofing effect of the partition set S201 from inside to outside. The test was carried out as follows. (Common conditions) As shown in FIG. 14, a sound source S was placed on one desk and sound was output, and the volume (noise level) was measured on the desks to the left and right of this desk, and on the desk Y2 behind it (the desk facing it). The distance between the sound source S and the measurement point 1 on the rear side Y2 is 700 mm, and the distance between the sound source S and the measurement points 2, 3 in the left-right direction X is 1400 mm.

[0074] The test was carried out in four settings, A to D. (Setting A) Tabletop partition 201 and rear partition 261 are not installed. (Setting B) Only the desktop partition 201 is placed on the desk on which the sound source S is placed. (Setting C) Only the desktop partition 201 is installed on each of the four desks at the sound source S and the measurement points 1 to 3. (Setting D) In addition to the conditions of setting C, a rear partition 261 is installed on the front side Y1 of only the desk on which the sound source S is placed.

[0075] (Measurement results) (Setting B) As shown in the measurement results in Fig. 14, the sound volume at measurement points 1 to 3 was lower in setting B than in setting A. Therefore, it was confirmed that by placing the tabletop partition 201 on the desk on which the sound source S is placed, the sound of the sound source S becomes less audible to the surroundings.

[0076] (Setting C) The sound volume at measurement point 1 was lower in setting C than in setting B. Therefore, it was confirmed that by placing the desktop partitions 201 on both the desk on which the sound source S was placed and the desk facing it, the sound of the sound source S was less audible in the direction of the facing desk. On the other hand, the volume at measurement points 2 and 3 was equivalent for settings B and C. Therefore, it was confirmed that even if the desk on which the sound source S is placed is supplemented by the desk partitions 201 on the left and right sides of the desk, the effect of making the sound of the sound source S less audible in the left-right direction X cannot be expected. This is thought to be because the sound of the sound source S travels to the front side Y1 and then wraps around in the left-right direction X.

[0077] (Setting D) The volume at measurement points 1 to 3 was lower for setting D than for settings B and C. This confirmed that by placing the partition set S201 (tabletop partition 201, rear partition 261) on the desk on which the sound source S is placed, the sound of the sound source S becomes even harder to hear in both the left-right direction X and the direction of the opposing desk. Also, the sound volume at measurement points 2 and 3 was smaller in setting D than in setting C. Therefore, it was confirmed that the soundproofing effect in the left-right direction X was greatly improved by adding the rear partition 261. This is thought to be because the sound of the sound source S can be prevented from traveling in the left-right direction X after traveling to the front side Y1.

[0078] [Verification of the howling suppression effect of partition set S201] FIG. 15 is a diagram for explaining a verification test of the howling suppression effect of the second embodiment. The partition set S201 was prototyped to verify the feedback suppression effect of the partition set S201. The test was performed as follows. (Common conditions) The desk arrangement was the same as in the verification of soundproofing effect described above (see Figure 14). Among the six desks, two adjacent desks were equipped with personal computers, and participants were asked to participate in the same web conference to verify whether feedback would occur.

[0079] The test was carried out in three settings: E to G. (Setting E) Partition set S201 not installed (Setting F) Install the S201 partition set on only one of two adjacent desks. (Setting G) Install S201 partition sets on both of two adjacent desks

[0080] (Verification results) (Setting E) Because feedback occurred frequently, it was difficult to hold web conferences. (Setting F) Although there was some feedback, it was enough to enable us to hold web conferences. (Setting F) There was almost no feedback, so we were able to hold the web conference comfortably.

[0081] In this way, we were able to confirm that by installing the Partition Set S201, feedback can be suppressed even when participating in the same web conference in the same room. Even if only the tabletop partition 201 of the partition set S201 is installed, referring to the measurement results of the settings B and C in the verification of the soundproofing effect, it is quite possible to expect that howling can be suppressed to some extent.

[0082] Third embodiment Next, a third embodiment of the present invention will be described. FIG. 16 is a diagram illustrating the partition set S301 of the third embodiment. FIG. 16(A) is a perspective view of the rear partition 360. FIG. FIG. 16B is a vertical cross-sectional view of the rear partition 360 near the inclined portion 390. As shown in FIG. FIG. 17 is a diagram illustrating the inclined portion 390 of the rear partition 360 of the third embodiment. FIG. 17A is a diagram showing the state in which the inclined portion main body 391 is developed into a flat plate shape. FIG. 17(B) is a diagram showing the rear partition 360 (with the outer cover portion 396 attached to the inclined portion main body 391) unfolded into a flat plate shape.

[0083] The partition set S301 is a combination of the tabletop partition of the first or second embodiment and the back partition 360. Illustrations and detailed explanations of the tabletop partition are omitted. As shown in FIG. 16, the rear partition 360 includes a rear partition body 361, four hook-and-loop fasteners 380, and an inclined portion 390.

[0084] The configuration of the rear partition body 361 is similar to the configuration of the rear partition 261 of the second embodiment. The hook-and-loop fastener 380 is a member that attaches the inclined portion 390 to the rear partition main body 361. The configuration of the hook-and-loop fastener 380 is similar to the configuration of the hinge portion 280 of the second embodiment. Each hook-and-loop fastener 380 connects the four panels 270 of the rear partition main body 361 to each trapezoidal panel 390a of the inclined portion 390.

[0085] The inclined portion 390 is attached to the top of the four panels 270 of the rear partition body 361. The inclined portion 390 is configured by connecting four trapezoidal panels 390a, which are isosceles trapezoidal panels. The length of the base of the trapezoidal panel 390a is equal to the length of the short side of the panel 270. 16(B), the inclined portion 390 is inclined so as to reach the upper side Z2 as it approaches the inside of the partition (the user side). As a result, when the partition set S301 is used, the inclined portion 390 is disposed so as to cover the upper part of the user (or the upper part of the back side of the user) when the user is seated on the chair.

[0086] As shown in FIG. 16B, the inclined portion 390 includes an inclined portion main body 391 and an outer cover portion 396 . Although not shown, the layered structure of the inclined portion main body 391 is the same as that of the panel main body 271 of the second embodiment (see FIG. 13(C)), that is, a layered structure of a base material, a sound absorbing plate, an inner cover part, etc. The structure of the inclined portion main body 391 is not limited thereto, and may be, for example, a structure of only a base material (hollow resin plate, etc.). As shown in FIG. 17(A), the inclined portion main body 391 is formed by continuously forming four trapezoidal plate portions 391a having an isosceles trapezoid shape. Adjacent trapezoidal plate portions 391a are rotatably connected by hinge portions H391a provided on the oblique sides. The hinge portions H391a are formed by processing a V-shaped groove, half cut, etc., in a base material (hollow resin plate) in the same manner as the fold lines H14b, etc., described in the first embodiment. Therefore, the base material can be produced by processing a single plate material.

[0087] The outer cover part 396 is a bag-shaped member, and is arranged so as to cover the entire inclination part main body 391. Since a line fastener (not shown) is provided on one side of the inclination part main body 391, the outer cover part 396 is detachable from the inclination part main body 391. The outer cover portion 396 is formed from the same fabric material as the outer cover portion 276. Therefore, the outer cover portion 396 has the same functions as the outer cover portion 276 (such as the functions of the loop surface side (female side) of the hook-and-loop fastener).

[0088] Although not shown in the figure, when attaching inclined portion 390 to rear partition main body 361, the user rotates adjacent trapezoidal panel 390a of inclined portion 390 at hinge portion H391a, thereby three-dimensionally deforming inclined portion 390 so that the base material side is on the outside and the sound-absorbing panel side is on the inside. As shown in FIG. 16, the user simply connects each trapezoidal panel 390a of the inclined portion 390 to each panel 270 of the rear partition main body 361 with hook-and-loop fasteners 380. As a result, the trapezoidal panel 390a of the inclined portion 390 is attached in an inclined state relative to each panel of the rear partition main body 361.

[0089] The inclined portion 390 exerts the same action and effect as the top panel portion 14 of the tabletop partition (see FIG. 14, etc.). That is, the inclined portion 390 improves, for example, sound insulation performance (sound leakage from the internal space to the external space, and sound intrusion from the external space to the internal space). In addition, the sound absorbing portion of the inclined portion main body 391 absorbs, for example, sound reverberating in the internal space, and thus can improve the howling suppression effect during a web conference, etc. Even in a form in which a sound absorbing plate is not provided on the inclined portion main body 391, sound reverberating in the internal space can be absorbed by the sound absorbing plate 273 of the panel 270 (see FIG. 13, etc.) and the sound absorbing portions 21 to 24 of the tabletop partition (see FIG. 7, etc.) as in the second embodiment.

[0090] As described above, in the partition set S301, the rear partition 360 is provided with the inclined portion 390, and therefore the sound insulation performance and the howling suppression effect during a web conference or the like can be improved.

[0091] FIG. 18 is a diagram illustrating another example of an inclined portion 390B according to the third embodiment. As shown in FIG. 18, the ramp 390B is made up of four separate trapezoidal panels 390b connected by three hook-and-loop fasteners 381. Each trapezoidal panel 390b includes a ramp body 391b and an outer cover portion 396b. The inclined portion main body 391b is an isosceles trapezoidal plate material similar to the trapezoidal plate portion 391a. The outer cover portion 396b is a bag-shaped member arranged so as to cover the entire inclination portion main body 391b. The outer cover portion 396b is made of the same fabric material as the outer cover portion 276 of the second embodiment. With the above configuration, the adjacent trapezoidal panels 390b are rotatably connected by the hook-and-loop fasteners 381 in the same manner as the inclined portion 390. This allows the inclined portion 390B to be attached to the rear partition main body 361 in the same manner as the inclined portion 390.

[0092] As described above, the inclined portion 390B can be separated into four trapezoidal panels 390b, which is convenient for storage and transportation.

[0093] FIG. 19 is a diagram illustrating another rear partition 360C of the third embodiment. FIG. 19A is a diagram showing the panel main body 371c. FIG. 19(B) shows panel 370c. FIG. 19(C) is a perspective view of the rear partition 360C. As shown in FIG. 19(A), in a panel main body 371c, a trapezoidal plate portion 391c is rotatably connected to the upper portion of a rectangular plate portion 371 by a hinge portion H391c. The laminated structure of the panel main body 371c is the same as that of the panel main body 271 (see FIG. 13, etc.). The hinge portion H391c is formed by processing a V-shaped groove, half-cutting, etc., in a base material (hollow resin plate). Therefore, the base material of the panel main body 371c can be manufactured by processing a single plate material.

[0094] As shown in FIG. 19(B), the panel 370c includes a panel main body 371c and a bag-shaped outer cover portion 376 that covers the entire panel main body 371c. The outer cover portion 376 is formed from the same fabric material as the outer cover portion 276. Furthermore, the outer cover portion 376 can be opened and closed by a wire fastener (not shown), and therefore can be attached to and detached from the panel main body 371c.

[0095] As shown in FIG. 19(C), when a user installs the rear partition 360C, first, the user installs the rear partition main body 361C on the floor surface in the same manner as in the second embodiment. Then, in a state in which each trapezoidal panel 390c of each panel 370c is tilted inward by rotating at the hinge portion H371c, adjacent trapezoidal panels 390c are connected by hook-and-loop fasteners 382. In this way, an inclined portion 390C is formed by the four trapezoidal panels 390c.

[0096] As described above, the trapezoidal panel 390c is integral with the panel 370c, so that the rear partition 360C has a simple structure.

[0097] As described above, the partition set S201 of this embodiment can be easily assembled when in use (when holding a web conference, etc.), and can be stored compactly when not in use. Furthermore, the partition set S201 has a high soundproofing effect because it includes the back partition 261 in addition to the tabletop partition 201. Furthermore, the partition set S201 has a simple configuration without a frame, etc., and therefore is less expensive than partitions that are assembled and permanently installed.

[0098] Although the embodiment of the present invention has been described above, the present invention is not limited to the above-mentioned embodiment, and various modifications and changes are possible, such as the modified forms described below, which are also within the technical scope of the present invention. Furthermore, the effects described in the embodiment are merely a list of the most preferable effects resulting from the present invention, and the effects of the present invention are not limited to those described in the embodiment. Note that the configurations of the above-mentioned embodiment and the modified forms described below can be used only in part, or in appropriate combination, but detailed description will be omitted.

[0099] (Variations) (1) In the embodiment, the back plate, left plate, right plate, top plate, left holding plate, right holding plate, etc. are shown as an example of an integral structure made of one plate material, but this is not limited thereto. At least some of these plate parts may be separated from the other parts and connected by a hinge part. In this case, tape or the like may be used for the hinge part. In this case, for example, the degree of freedom in cutting plates from fixed-length plate materials can be improved.

[0100] (2) The configuration of the tabletop partition of the embodiment may be appropriately simplified. For example, the tabletop partition may not have a top panel, and may have a back panel, a left panel, a right panel, etc., so that the top is open.

[0101] (3) In the embodiment, the material of the tabletop partition is an example of a light-transmitting, opaque plate, but this is not limited to this. The material of the tabletop partition may be an opaque plate material that does not transmit light. Even in this case, the tabletop partition has the effect of being convenient when assembling and folding, and is effective in terms of sound insulation, etc. [Explanation of symbols]

[0102] 1,201: Tabletop partition 11: Back plate part 12:Left plate part 13: Right plate 14: Top plate 15:Left holding plate part 16: Right holding plate part 21~24: Sound absorbing section H12~H16: Hinge section 261, 360, 360C: Rear partition 270,370c:Panel 271,371c: Panel body 272: Base material 273: Sound absorbing board 273a: Glue 274: Inner cover part 276, 376: Outer cover part 280: Hinge part S201, S301: Partition set 361, 361C: Rear partition body 380, 381, 382: Velcro 390,390B,390C: Inclined part 390a, 390b, 390c: Trapezoidal panels 391: Slope body 391a, 391c: Trapezoidal plate section 391b: Inclined part body 396, 396b: Outer cover part

Claims

1. A partition set comprising a partition to be placed behind a user seated in a chair and a desktop partition to be placed on a desk used by the user, The partition is Multiple panels and and a hinge portion connecting adjacent panels, Each panel is A substrate formed of a hollow resin plate; A sound absorbing plate having the same size as the base material when viewed from a normal direction of the surface and laminated on the base material; a sound-absorbing panel cover portion that covers the surface of the sound-absorbing panel that is exposed on the opposite side to the base material side and has a property of transmitting sound; The hinge portion is A detachable portion that is detachable from the panel; a bending portion that allows rotation between adjacent panels by bending; The adjacent panels are The device can stand on its own by being rotated and bent at the hinge portion, and can be positioned so that the sound-absorbing plate faces the user when in use. The desktop partition is A back panel portion disposed to face a user; Side plate portions connected to the left and right sides of the back plate portion toward a user side; A top plate portion is connected to the upper side of the back plate portion toward the user side and inclined upward toward the user side, The back plate portion and the left and right side plate portions are U-shaped when viewed from above and open toward the user, and are at a height corresponding to the head of a seated user. The sound in the internal space of the tabletop partition is reflected by the back panel, the side panel, and the top panel, so that the sound travels from the tabletop partition to the rear of the user, The partition is The panels are arranged to surround the user from behind and are at a height corresponding to the head of a seated user, thereby absorbing sound that travels from the tabletop partition toward the rear of the user. A partition set characterized by:

2. The sound absorbing plate is A plate material containing glass wool, Each panel is an outer cover part that is detachable from the panel body and has a property of transmitting sound; the outer cover part is disposed so as to cover the entire panel body including the base material, the sound absorbing board, and the sound absorbing board cover part; The detachable portion of the hinge portion is The hook-and-loop fastener structure allows the cover to be attached to and detached from the outer cover. The partition set of claim 1 .

3. Each panel is connected to the top and has an inclined section that slopes upward toward the inside of the partition. A partition set according to claim 1 or 2.

4. The desktop partition is Transformable between an assembled state and a folded state; The back plate and the left and right side plates are connected by hinges so as to be openable and closable, The back panel and the top panel are connected by a hinge portion so as to be openable and closable, In the assembled state, the back plate portion and the left and right side plate portions are open in a U-shape, and the top plate portion is open so as to be inclined relative to the back plate portion. In the folded state, the back plate portion and the left and right side plate portions are closed, and the back plate portion, the top plate portion, and the back plate portion are closed. A partition set according to any one of claims 1 to 3.

5. The desktop partition is A sound absorbing portion is provided on at least a part of the surface of the plurality of plate portions facing the internal space, and absorbs sound within the internal space. A partition set according to any one of claims 1 to 4.

6. The material of each plate of the tabletop partition is a hollow resin plate. A partition set according to any one of claims 1 to 5.

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