Plane structure

Abstract

To provide a structure allowing face-to-face and on-line lessons and meetings to be effectively carried out at a low cost through an installation in a short period.SOLUTION: A planar structure, in facilities having an inner space allowing a plurality of seats to be aligned to face a stage, is provided with: a frame body formed with at least two of a first leg and a second leg parallel to a wall surface forming the inner space and extending vertically from a floor surface of the facilities to a ceiling surface and a lateral beam connecting end parts at ceiling sides of the first leg and the second leg and extending horizontally to the floor; a fixture fixing the frame body on the wall surface; and an attachment member attached to the frame body and capable of setting specific equipment and tools to be used in the facilities.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The disclosure in this specification relates to a planar structure for installing devices and equipment used in facilities such as classrooms and conference rooms. [Background technology]

[0002] In recent years, due to the need for staggered school attendance, satellite classes, and remote meetings, there has been a need to permanently install various ICT devices and equipment (hereinafter referred to as "equipment") in facilities such as classrooms and conference rooms so that face-to-face classes and meetings can be held, as well as online classes and meetings.

[0003] A certain amount of space is required to install these devices. For example, to install a projector, in addition to the installation space for the device itself, a screen for projecting images and a location for wiring etc. must be secured.

[0004] Conventional facilities that are based on face-to-face teaching are not designed to accommodate the installation of the above-mentioned equipment, and therefore often require interior renovation to accommodate the equipment. However, classrooms have limitations on their area and interior facilities, as they need to maintain a certain indoor environment. In addition, renovations have a variety of challenges, including cost, construction time restrictions, and requests for short delivery times so that the use of the facilities is not restricted during renovations.

[0005] In order to address such issues, there have been proposed a spatial structure in which the above-mentioned equipment can be installed by providing a groove extending in the axial direction inside the columnar body and the cross beam body and providing a connecting means that can be moved to any position within the groove and fixed at that position (see, for example, Patent Document 1); a free-standing spatial structure that includes column members extending in the vertical direction and beam members connected to the column members and extending in the horizontal direction, forming a backyard space for storing items inside; and an educational support device that is installed on at least a part of the structural surface formed by the column members and beam members of the spatial structure and can be used as a whiteboard or screen (see, for example, Patent Document 2). [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2007-132474 A [Patent Document 2] JP 2019-209608 A Summary of the Invention [Problem to be solved by the invention]

[0007] For example, in the case of a classroom, a standard floor area is provided. Also, in the case of a conference room that can accommodate a certain number of people, a corresponding floor area is required. In order to build a self-supporting spatial structure as disclosed in the above-mentioned prior art in the interior space of a facility that requires a certain amount of space, legs at only the four corners are insufficient from the viewpoint of ensuring strength, and legs must also be provided in the middle of the cross beams.

[0008] In facilities such as classrooms and conference rooms, the seating arrangement may be changed depending on the purpose, but providing the intermediate legs in the interior space could restrict the freedom to rearrange the seats.

[0009] Furthermore, providing a protruding body such as the intermediate leg in the interior space may cause problems such as safety and making it difficult to see the entire interior of the room.

[0010] Furthermore, compared to renovating the facility, the spatial structure can reduce costs and shorten the construction period, but from a budgetary standpoint, there is a demand for even shorter delivery times and even lower costs, as well as for avoiding restrictions on the use of the facility during construction.

[0011] However, in the case of classes with staggered attendance, it was necessary to hold the same classes multiple times, which placed a heavy burden on teachers. Also, since students who were originally in the same class were separated, the sense of unity within the class was weakened, which could lead to undesirable educational results.

[0012] In online remote classes, teachers had the problem of not being able to see the individual students' progress. In addition, when recording face-to-face classes and providing remote classes, teachers had a heavy workload, such as setting up recordings for remote classes during face-to-face classes.

[0013] The disclosure of this specification is intended to solve the above problems, and has as its first objective to provide a structure capable of installing equipment that enables face-to-face and online classes and conferences to be conducted effectively. It also has as its second objective to provide a structure that can be constructed at low cost and in a short delivery period. [Means for solving the problem]

[0014] In order to solve the above problems, one aspect of the planar structure disclosed in this specification is a facility having an internal space in which a plurality of seats can be arranged facing a stage, Forming the internal space A stage side wall surface behind the stage and a rearmost side wall surface of the seats facing the stage side wall surface At least two first legs and second legs extending vertically from the floor surface of the facility to the ceiling surface in parallel with the floor surface of the facility, and a cross beam portion connecting the ends of the first legs and the second legs on the ceiling surface side and extending horizontally with respect to the floor surface. A pair of stage side frames and rearmost side frames A frame body, The above A pair frame body Each of a fixture for fixing the above-mentioned to the wall surface; The above A pair frame body Each of and a mounting member that can be attached to the facility to allow installation of predetermined equipment and tools to be used in the facility. do.

[0015] Furthermore, the mounting members can be installed in appropriate locations according to the respective uses of the equipment and tools to be attached and installed on the stage side frame body and the equipment and tools to be attached and installed on the rearmost side frame body, and can be fixed in a configuration that does not impair the use of each piece of equipment and tool.

[0016] With this configuration, the desired equipment and instruments can be installed on a fixed planar structure along the wall of the facility.

[0017] Furthermore, by forming the planar structure into a pair consisting of a stage side frame and a rearmost side frame, the devices and instruments can be installed in appropriate locations according to their respective applications.

[0018] In the case where an existing blackboard or whiteboard is installed on the wall surface of the facility, the stage side frame and the mounting members attached to the stage side frame may be assembled in a position that does not overlap the writing surface of the writing board, including the blackboard or whiteboard, installed on the stage side wall surface. In other words, the present planar structure can be fixed in a configuration that does not impair the use of existing equipment used in face-to-face classes and meetings.

[0019] The mounting member includes a stage-side projector mounting member attached to the cross beam portion of the stage-side frame for projecting an image onto the writing surface.

[0020] The mounting member also includes a monitor mounting member that has a third leg parallel to at least one of the first leg or second leg of a frame body installed parallel to the stage side wall surface, and an extended cross beam portion that connects an end of the third leg to an end of the parallel first leg or second leg, and is horizontally suspended between the third leg and the parallel first leg or second leg.

[0021] The mounting members attached to the rearmost frame and the rearmost frame may be assembled to the rearmost side wall surface at positions that do not overlap a storage shelf installed upright from the floor surface. As in the case of the stage-side frame, the mounting members attached to the rearmost frame and the rearmost frame may be fixed in a configuration that does not impair the use of existing equipment, etc., on the rearmost side wall surface.

[0022] The rearmost side frame body may have two intermediate cross beam portions connecting the first leg portion and the second leg portion in parallel to the cross beam portion, and one or more multi-purpose panels may be fitted between the two intermediate cross beam portions to form an area that can be clamped.

[0023] The mounting member includes a rear-side projector mounting member that enables a rear-side projector that projects enlarged or reduced images onto the multi-purpose panels to be mounted on the cross beam portion of the rear-side frame body according to the number of multi-purpose panels.

[0024] The area formed by the intermediate cross beam portion may have a space for mounting a multi-purpose panel capable of displaying a predetermined number of faces, the same size as those of the people seated at the rearmost part of the seats, via the rearmost projector, as viewed from the stage. By forming the planar structure into a pair consisting of a stage-side frame body and a rearmost-side frame body, a projected image similar to that of a face-to-face type can be viewed from the stage side in an online class or conference.

[0025] The mounting member includes a camera mounting member that enables a camera to be mounted to the cross beam portion of at least one of the stage side frame body or the rearmost side frame body in a direction in which one of the pair of frame bodies faces directly toward the other frame body. Effect of the Invention

[0026] The planar structure of the present invention has the effect of providing a structure on which equipment for effectively conducting face-to-face and online classes and conferences can be installed. In addition, the planar structure of the present invention has the effect of providing a structure that can be constructed at low cost and in a short delivery period. [Brief description of the drawings]

[0027] [Figure 1] FIG. 1 is a perspective view of a planar structure disclosed in the present specification. [Diagram 2] FIG. 2 is an exploded perspective view of the stage side frame. [Diagram 3]FIG. 3 is an exploded perspective view of the rearmost frame. [Figure 4] FIG. 4 is a perspective drawing showing the planar structure installed in a classroom. [Diagram 5] FIG. 5 is a top view showing the planar structure installed in a classroom. [Figure 6] FIG. 6 is a diagram showing the image projected onto the panel of the rearmost frame as viewed from the stage (lectern) side. [Figure 7] Figure 7 shows the installation configuration of a frame body in a classroom that has walls on all four sides, the stage side, the rear side, and the left and right sides. (A) is a diagram showing an example of the frame body being installed in three places on the stage side wall, the rear side wall, and the right side wall. (B) is a diagram showing an example of the frame body being installed in three places on the stage side wall, the right side wall, and the left side wall. (C) is a diagram showing an example of the frame body being installed on all four walls of the classroom. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] Hereinafter, the embodiments for carrying out the disclosure of this specification will be described with reference to the drawings. When a subsequent embodiment has a component corresponding to an embodiment described above, the same reference numerals are used and duplicated description is omitted. In addition, when only a part of the configuration is described in each embodiment, the reference numerals of the previously described embodiment may be used for other parts of the configuration. Even if each embodiment does not specifically indicate that a combination is possible, it is possible to partially combine the embodiments as long as there is no particular problem with the combination. In addition, the size of each member and component in the drawings is appropriately emphasized to facilitate explanation, and does not indicate the actual dimensions or the ratio between members and components.

[0029] The planar structure disclosed in this specification can be installed in a facility having an internal space in which seats can be arranged facing the stage, but in the following embodiment, a planar structure installed in a school classroom will be described as an installation example. In this specification, the stage typically corresponds to a podium in the case of a classroom, but even if there is no podium, it is defined as a stage as long as it is an area where a teacher gives a lesson or lecture to students facing directly. In addition, in this specification, the seat includes not only a chair, but also a set of a chair and a desk, a long table, a laboratory table, a kitchen table, a round table, or other large table and multiple chairs.

[0030] <Configuration of Planar Structure> Fig. 1 is a perspective view of the planar structure disclosed in the present specification, Fig. 2 is an exploded perspective view of the stage side frame body, and Fig. 3 is an exploded perspective view of the rearmost side frame body. The configuration of the planar structure will be described below with reference to Figs. 1 to 3.

[0031] The planar structure 100 is composed of a pair of frames, consisting of a stage side frame 110 and a rearmost side frame 120. Here, the rearmost part refers to the wall side facing the wall behind the stage (in the case of a typical school-style seating arrangement in which all seats face the stage, the wall side behind the rearmost seats).

[0032] The stage side frame 110 is formed in a U-shape with a first leg 111A and a second leg 111B extending vertically from the floor surface of the classroom to the ceiling surface, and a cross beam 112A connecting the ends of the first leg 111A and the second leg 111B on the ceiling surface side and extending horizontally to the floor surface. The first leg 111A and the second leg 111B may be fixedly connected to the cross beam 112A by, for example, a dedicated connection joint (not shown).

[0033] The size of the space surrounded by the U-shape formed by first leg 111A, second leg 111B and cross beam 112A can be adjusted by adjusting the length of each leg and cross beam depending on the application, but for example, as described below, when a writing board such as a blackboard or whiteboard is installed on the stage, the lengths of first leg 111A, second leg 111B and cross beam 112A can be set so as not to overlap the writing surface. Even if the writing board is movable, such as a whiteboard with casters, the lengths can be determined according to the installation position of the normal fixed position.

[0034] The stage side frame 110 has the third leg 111C arranged in parallel with the second leg 111B, and an extended cross beam 112B that connects the end of the second leg 111B to the end of the third leg 111C. Monitor mounting members 113A and 113B are horizontally supported between the second leg 111B and the third leg 111C. In this embodiment, a monitor bracket 118 is provided between the two monitor mounting members 113A and 113B. The monitor bracket 118 has latching claws formed at both ends in the longitudinal direction, and is provided to grip the monitor mounting members 113A and 113B with both latching claws, but the method of providing the monitor bracket 118 is not limited to that of this embodiment.

[0035] As shown in FIG. 2, monitor D has a monitor bracket 118 screwed onto its back surface, and is attached to monitor mounting members 113A and 113B via the monitor bracket 118. However, if a bracket is already installed on the back surface of monitor D, monitor D will be attached directly to monitor mounting members 113A and 113B.

[0036] In addition to the monitor mounting members 113A and 113B, the stage side frame 110 has a projector mounting member 116 and a camera mounting member 117 attached to the cross beam portion 112A as mounting members. In this embodiment, the projector mounting member 116 is a mounting bracket with a C-shaped cross section as shown in FIG. 2, and both open ends are bent at a right angle outward to form a mounting portion. The mounting portion is attached to the cross beam portion 112A by screwing or the like, and a mounting hole is formed integrally with the cross beam portion 112A. The mounting plate of the stage side projector Ps may be fitted into the mounting hole. As will be described later, the stage side projector Ps is installed at a position where the writing surface of the writing board is located directly below it, and an image is projected onto the writing surface. Therefore, it is preferable that the stage side projector Ps is a short focus projector.

[0037] 2, the camera mounting member 117 is a mounting bracket with an L-shaped cross section, and a rising piece extending in the same direction as the longitudinal direction of the first leg 111A and the second leg 111B is attached to the cross beam 112A by screwing or the like. The stage-side camera Cs can be mounted on a mounting piece formed by bending the rising piece at a right angle.

[0038] The stage side frame body 110 has a plurality of fasteners 114 attached to the first leg portion 111A, the second leg portion 111B, and the third leg portion 111C. Furthermore, a plurality of fasteners 115 are attached to the cross beam portion 112A and the extended cross beam portion 112B. The fasteners 114, 115 fix the stage side frame body 110 in parallel to the wall surface of the classroom. In this embodiment, the fasteners 114, 115 are fixing metal fittings with a Z-shaped cross section. That is, the fasteners 114, 115 are bent at a right angle at one end with respect to the intermediate base portion to form a wall-side mounting piece, and bent at a right angle at the other end in the opposite direction to the mounting piece to form a locking piece. The wall-side mounting piece is fixed to the wall surface by screwing or the like, and the locking piece is inserted into locking grooves (not shown) formed in first leg 111A, second leg 111B, third leg 111C, cross beam portion 112A, and extended cross beam portion 112B. In this embodiment, four fasteners 114 and three fasteners 115 are attached, but the number of each fastener is not particularly limited. For example, the number of fasteners to be attached can be set arbitrarily depending on the material, strength, etc. of the classroom wall surface.

[0039] The monitor mounting members 113A and 113B, the projector mounting member 116, the camera mounting member 117, and the fixtures 114 and 115 are not limited to the structures and shapes described above. As long as the monitor D, the stage-side projector Ps, and the stage-side camera Cs can be mounted, or the fixtures can be fixed to the wall of the classroom, the structures and shapes may be different from those described above. The mounting members are not limited to the monitor mounting members 113A and 113B, the projector mounting member 116, and the camera mounting member 117. That is, the stage-side frame 110 can be mounted using mounting members of a predetermined shape depending on the shape, weight, installation position, etc. of the equipment and tools to be mounted on the first leg 111A, the second leg 111B, the third leg 111C, the cross beam 112A, and the extended cross beam 112B.

[0040] The rearmost frame body 120 has the same basic configuration as the stage side frame body 110. That is, the first leg 111A, the second leg 111B, the cross beam 112A, the fixtures 114, 115, the projector mounting member 116, and the camera mounting member 117 of the stage side frame body 110 and the first leg 121A, the second leg 121B, the cross beam 122A, the fixtures 123, 124, the projector mounting member 126, and the camera mounting member 127 of the rearmost frame body 120 have the same structure. Note that the rearmost frame body 120 has a plurality of projectors mounted thereon. That is, three projector mounting members 126 are also attached to install the rearmost projectors Pb1, Pb2, and Pb3 at approximately equal intervals. Furthermore, in order to accommodate three projectors, the cross beam portion 122A is longer than the cross beam portion 112A of the stage side frame 110.

[0041] The rearmost side frame 120 includes two first intermediate cross beams 122B and second intermediate cross beams 122C that connect the first leg 121A and the second leg 121B in parallel to the cross beam 122A. The first intermediate cross beams 122B and second intermediate cross beams 122C are installed at desired positions in the longitudinal direction of the first leg 121A and the second leg 121B by an inverted L-shaped intermediate cross beam bracket 125 attached to the first leg 121A and the second leg 121B. For example, the intermediate cross beam bracket 125 may be attached at a predetermined position between the first intermediate cross beam 122B and the second intermediate cross beam 122C to secure an area in which one or more multi-purpose panels M can be fitted and clamped. In this embodiment, a multi-purpose panel mounting member 128 is attached to the first intermediate cross beam 122B to enable fixed installation.

[0042] As described later, the rearmost projectors Pb1, Pb2, and Pb3 are installed at positions directly below the multi-purpose panel M to project images. Therefore, it is preferable that the rearmost projectors Pb1, Pb2, and Pb3 are short-focus projectors. Similarly, as described later, it is preferable that the rearmost camera Cb mounted on the camera mounting member 127 is a tracking camera that tracks the movement of the teacher on the stage side.

[0043] As described above, the planar structure 100 is composed of a frame body consisting of at least two first legs, a second leg, and a cross beam portion connecting the ends of the first leg and the second leg, as well as fixing devices and mounting members installed on the frame body.

[0044] <Example> An embodiment in which the planar structure 100 is installed in a classroom will be described below with reference to Figs. 4, 5, and 6. Fig. 4 is a perspective view showing the planar structure 100 installed in a classroom, and Fig. 5 is a top view showing the planar structure 100 installed in a classroom. Fig. 6 is a view showing an image projected onto a panel of the rearmost frame body 120 as viewed from the stage (lectern) side.

[0045] The classroom is surrounded on all four sides by walls W1 to W4. The stage-side frame 110 of the planar structure 100 is fixed to the wall W1 on the podium side, and the rearmost frame 120 is fixed to the wall W2 on the rearmost side of the seats. The first legs 111A, 121A and second legs 111B, 121B of the stage-side frame 110 and the rearmost frame 120, and the third leg 111C of the stage-side frame 110 are all installed so as to extend vertically from the floor F to the ceiling C of the classroom. Furthermore, the stage side frame body 110, the cross beam portions 112A, 122A of the rearmost frame body 120, the extended cross beam portion 112B of the stage side frame body 110, and the first intermediate cross beam portion 122B and second intermediate cross beam portion 122C of the rearmost frame body 120 are all installed to extend horizontally with respect to the floor surface F. Note that, in order to ensure the horizontality of the ends of the first legs 111A, 121A, the second legs 111B, 121B, and the third leg 111C on the ceiling C side, adjusters that can finely adjust the height may be attached to the ends on the floor surface side.

[0046] The stage side frame 110 forms a space surrounded by the first leg 111A, the second leg 111B, and the cross beam 112A so that the writing surface of the blackboard B installed on the wall W1 can be used in its entirety. That is, the first leg 111A, the second leg 111B, and the cross beam 112A are assembled so that the stage side frame 110 and the writing surface of the blackboard B do not overlap. The stage side projector Ps is attached to the cross beam 112A so that the blackboard B is placed directly below it. The image of the stage side projector Ps is projected onto the blackboard B and can be viewed from the students' side. Furthermore, the monitor D is also installed parallel to the blackboard B so that it can be viewed from the students' side.

[0047] On the other hand, the rearmost frame 120 is attached to the wall W2 in a position that does not overlap the storage shelf R that is installed upright from the floor F. In other words, the first intermediate cross beam portion 122B and the second intermediate cross beam portion 122C to which the multi-purpose panel M is attached are connected to the first leg portion 121A and the second leg portion 121B above the storage shelf R.

[0048] The multi-purpose panel M projects images from the rearmost projectors Pb1, Pb2, and Pb3, but in this embodiment, facial images of students who are not attending school due to staggered attendance are projected onto the multi-purpose panel M. When displaying facial images of multiple students participating online on a split screen, if they are displayed through one projector, the display area per person becomes small, and when viewed from the podium, the facial expressions cannot be read. Therefore, multiple multi-purpose panels M can be connected and the rearmost projectors can be installed according to the number of multi-purpose panels M. In this embodiment, the multi-purpose panels M1, M2, and M3 are connected and the rearmost projectors Pb1, Pb2, and Pb3 are installed in accordance with the number of multi-purpose panels M1, M2, and M3. Therefore, as shown in Figure 6, the size of the face of student S1, who is actually attending class and sits at the back, and the size of the face of student S2, who is attending class online and is displayed on the multi-purpose panel M1, will be approximately the same size when viewed from the podium.

[0049] As described above, the camera Cb is a tracking camera that tracks the teacher's movements. As shown in FIG. 6, the camera Cb can be installed on the rearmost frame 120, so the teacher can take pictures of the teacher facing the students, that is, in the same direction as the students' line of sight. In order to install the camera Cb facing the same direction as above in a classroom without the planar structure 100, it is necessary to install a ceiling-suspended installation tool on the ceiling or install a free-standing installation stand vertically from the floor surface. The planar structure 100 allows the camera Cb to be installed at low cost and safely compared to the ceiling-suspended or free-standing installation methods.

[0050] In addition, if the video of the lesson captured by the camera Cb at this installation position is archived, it can be used as a teaching material at a later date. If a teacher tries to capture a similar video in a classroom without the planar structure 100, the teacher needs to check the shooting angle for the teaching material and set up the camera each time. The planar structure 100 can reduce the workload of the teacher in setting up the camera.

[0051] In face-to-face classes, students may take to the podium T to make presentations. In conventional online classes, it is difficult for students participating online to make presentations in the same position as in face-to-face classes. However, by using the planar structure 100, an image of the presenting student can be projected onto the blackboard B via the projector Ps, and an image captured by the stage-side camera Cs can be displayed on the image of the student giving the presentation. Therefore, by using the planar structure 100, even in situations where a presentation is given in class, students attending the online class can make the presentation from the same line of sight as in face-to-face classes.

[0052] As mentioned above, the multi-purpose panels M1, M2, and M3 can be magnetic boards to display exhibits when they are not projecting images by the rearmost projectors Pb1, Pb2, and Pb3. If they are made to be whiteboards on which writing can be done, they can also be used as extended writing boards for the blackboard B installed on the wall W1.

[0053] The wiring for the stage-side projector Ps, the stage-side camera Cs, the rearmost-side projector Pb, the rearmost-side camera Cb, the monitor D, etc. may be stored in wiring guide grooves provided inside the members constituting the stage-side frame body 110 and the rearmost-side frame body 120, such as the first legs 111A, 121A, the second legs 111B, 121B, the cross beams 112A, 122A, etc. As shown in Fig. 4, a freely expandable support rod E may be interposed between the cross beams 112A, 122A and the ceiling C to more stably install the stage-side frame body 110 and the rearmost-side frame body 120.

[0054] <Modification> 7 is a diagram showing the installation form of the frame body installed in a classroom having walls on the stage side, the rearmost side, and the left and right sides, and shows a modified example of the above embodiment. (A) is a diagram showing an example in which the stage side frame body 110, the rearmost side frame body 120, and the right wall side frame body 140 are installed at three locations, the stage side wall W1, the rearmost side wall W2, and the right side wall W4. (B) is a diagram showing an example in which the stage side frame body 110, the left wall side frame body 130, and the right wall side frame body 140 are installed at three locations, the stage side wall W1, the right side wall W4, and the left side wall W3. (C) is a diagram showing an example in which the stage side frame body 110, the rearmost side frame body 120, the left wall side frame body 130, and the right wall side frame body 140 are installed on all four walls (W1, W2, W3, W4) of the classroom.

[0055] In each of the above modified examples, in the case of (A), the three stage side frames 110, the rearmost side frame 120, and the right wall side frame 140 are paired to form a planar structure, and in the case of (B), the three stage side frames 110, the left wall side frame 130, and the right wall side frame 140 are paired to form a planar structure. Also, in the case of (C), the four stage side frames 110, the rearmost side frame 120, the left wall side frame 130, and the right wall side frame 140 are paired to form a planar structure.

[0056] In each of the above-mentioned modified examples, in addition to projecting the faces of students attending online as explained in the above embodiment, the faces of parents may also be displayed on frames other than the stage side frame 110 when visiting a class. Also, when a joint class is held with another class, the faces of students who do not all fit in the classroom may be displayed. Also, in addition to displaying the video of individual students on a split screen, it is also possible to display split images for each group in the case of group learning, etc.

[0057] Although the above embodiment and modified examples have been described with the planar structure installed in a classroom, they can also be applied to a conference room. For example, when a meeting is held between employees of a head office and employees of multiple branch offices, the planar structure may be installed on the wall of the head office conference room in the form of any of the above embodiment and modified examples, and a joint meeting may be held. In particular, even if a large conference room is not available, each participant's face and expression can be visually confirmed, so that a realistic conference room can be provided for both participants participating online and participants actually participating in the conference room.

[0058] Furthermore, in the above embodiments and variant examples, a facility (classroom) having walls on all four sides has been described as an example, but the planar structure can also be installed in facilities having walls that are polygonal when viewed from above, such as a hexagon.

[0059] As described above, the planar structure disclosed in this specification can be equipped with devices that can effectively conduct face-to-face and online classes and conferences. Furthermore, in the rear part of a classroom or conference room, which has not been effectively used in the past, it is possible to display large images of students or employees participating in online classes, allowing actual attendees and participants and remote attendees and participants to receive classes and hold conferences in real time.

[0060] The technology disclosed in this specification is not limited to the above-mentioned embodiment. That is, it includes the embodiment shown as an example and the modification by a person skilled in the art based on them. It also includes the replacement or combination of parts or elements between one embodiment and another embodiment. Furthermore, the disclosed technical scope is not limited to the description of the embodiment. The disclosed technical scope is indicated by the description of the claims, and further includes all modifications within the meaning and scope equivalent to the description of the claims. [Explanation of symbols]

[0061] 100 Planar structure 110 Stage side frame 111A, 121A 1st leg 111B, 121B 2nd leg 111C 3rd leg 112A, 122A cross beam section 112B Extension cross beam section 113A, 113B Monitor mounting parts 114, 115, 123, 124 Fixtures 116, 126 Projector mounting member 117, 127 Camera mounting parts 118 Monitor bracket 120 Rearmost frame 122B 1st intermediate cross beam section 122C 2nd intermediate cross beam section 125 Intermediate cross beam bracket Ps Stage side projector Cs Stage side camera D Monitor Pb Rearmost projector Cb rear camera M Multi-purpose Panel

Claims

1. A venue with an interior space that can accommodate multiple seats facing the stage. a pair of frames, consisting of a stage side frame and a rearmost side frame, each formed of at least two first legs and second legs extending vertically from a floor surface of the facility to a ceiling surface in parallel with a stage side wall surface behind the stage and a rearmost side wall surface of the seats facing the stage side wall surface, and a cross beam portion connecting ends of the first legs and second legs on the ceiling surface side and extending horizontally with respect to the floor surface; a fastener for fastening each of the pair of frames to the wall surface; and a mounting member for mounting to each of the pair of frames to enable the installation of predetermined equipment and instruments to be used in the facility; The mounting member is a planar structure that can be installed in an appropriate location according to the respective uses of the equipment and tools to be attached and installed on the stage side frame body and the equipment and tools to be attached and installed on the rearmost side frame body, and can be fixed in a configuration that does not impair the use of each piece of equipment and tool.

2. The planar structure of claim 1, wherein the stage side frame and the mounting members attached to the stage side frame are assembled in a position that does not overlap a writing surface of a writing board, including a blackboard or whiteboard, installed on the stage side wall surface.

3. 3. The planar structure according to claim 2, wherein the mounting member includes a stage-side projector mounting member for projecting an image onto the writing surface, the stage-side projector being mounted on the cross beam portion of the stage-side frame.

4. The planar structure according to any one of claims 1 to 3, wherein the mounting member includes a third leg parallel to at least one of the first leg or second leg of a frame body installed parallel to the stage side wall surface, an extended cross beam portion connecting an end of the third leg to an end of the parallel first leg or second leg, and a monitor mounting member horizontally suspended between the third leg and the parallel first leg or second leg.

5. A planar structure as described in any one of claims 1 to 4, wherein the rearmost side frame body and the mounting member attached to the rearmost side frame body are assembled to the rearmost side wall surface in a position that does not overlap a storage shelf installed upright from the floor surface.

6. The rearmost side frame body has two intermediate cross beam portions that connect the first leg portion and the second leg portion in parallel to the cross beam portion, and the area between the two intermediate cross beam portions forms an area in which one or more multi-purpose panels can be fitted and clamped. A planar structure as described in any one of claims 1 to 5.

7. The planar structure of claim 6, wherein the mounting member includes a rear-side projector mounting member that enables a rear-side projector that projects an enlarged or reduced image onto the multi-purpose panel to be mounted on the cross beam portion of the rear-side frame body according to the number of the multi-purpose panels.

8. A planar structure as described in claim 7, wherein the area formed by the intermediate cross beam portion has space for mounting a multi-purpose panel capable of displaying faces of the same size as those of the people seated at the rearmost part of the seats, as viewed from the stage, via the rearmost projector, for a specified number of people.

9. A planar structure described in any one of claims 1 to 8, wherein the mounting member includes a camera mounting member that enables a camera to be mounted on a cross beam portion of at least one of the stage side frame body or the rearmost side frame body in a direction in which one of the pair of frame bodies is directly facing the other frame body.

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