Integrated electronic whiteboard system

Abstract

The objective of this project is to provide a comprehensive electronic whiteboard system that allows various uses by assembling various devices necessary for realizing the GIGA School Initiative at a relatively low cost while leaving the existing whiteboard as it is. [Solution] A first upper hanger rail 5 is placed along the upper edge of an existing blackboard 1, a first lower hanger rail 6 is placed along its lower edge, a second upper hanger rail 7 is placed along the upper side of the first upper hanger rail 5, and a second lower hanger rail 8 is placed along the lower side of the first lower hanger rail 6, a first sliding frame 11 for attaching an electronic blackboard 15 is hung between the first upper hanger rail 5 and the first lower hanger rail 6, and a second sliding frame 12 for attaching a projection-compatible board 16 and a projector 17 is hung between the second upper hanger rail 7 and the second lower hanger rail 8.

Description

[Technical Field]

[0001] The present invention relates to a comprehensive electronic whiteboard system, and more specifically, to a comprehensive electronic whiteboard system that can be installed relatively inexpensively and can contribute to the realization of the GIGA School Initiative announced in 2019. [Background technology]

[0002] Following the announcement of the GIGA School Initiative Implementation Package in 2019, schools have established in-school LANs and are rapidly adopting and utilizing ICT in schools. The core of the GIGA School Initiative is the creation of an educational ICT environment that is personalized for each student and fosters their creativity. Specifically, each student will be given a learning device (tablet), and lessons will be conducted using electronic whiteboards installed in each classroom.

[0003] However, each classroom is equipped with a large blackboard, and lessons in schools have long been based on writing on the blackboard, a teaching method familiar to both students and teachers, and one that is difficult to abandon even with the advancement of ICT education. However, there are limitations in terms of budget and installation space to provide electronic blackboards in addition to traditional blackboards in each classroom. In particular, it is extremely difficult to introduce large electronic blackboards to replace blackboards.

[0004] Therefore, one approach is to use an existing blackboard or whiteboard, install a projector above the board, and project images onto the board, turning the board into an electronic blackboard (making it interactive). In this case, because the projection range is narrow, it has been considered to make the projector movable left and right so that the projection position can be changed (Patent Publication Nos. 2021-128299 and 2018-189925). Furthermore, because the image projected by a projector is less clear than that of an electronic blackboard, many electronic blackboards are now available that are installed in front of the existing blackboard and can slide left and right so as not to interfere with writing on the existing blackboard. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Publication No. 2021-128299 [Patent Document 2] Japanese Patent Application Publication No. 2018-189925 Summary of the Invention [Problem to be solved by the invention]

[0006] In the above-mentioned interactive methods proposed so far, an existing blackboard is converted into an electronic blackboard by projecting an image onto it with a projector, but in the case of an existing blackboard, the projected image is unclear, so the blackboard surface needs to be resurfaced, which is a time-consuming and costly process.In addition, the usage of the proposed systems is limited to projecting an image onto the blackboard surface with a projector, using an electronic blackboard, and moving the electronic blackboard to write on it, and no other usage is anticipated.

[0007] The present invention was made in consideration of the problems with the conventional systems described above, and aims to provide a comprehensive electronic whiteboard system that allows various uses by leaving the existing whiteboard as it is and assembling the various devices necessary to realize the GIGA School Initiative at a relatively low cost. [Means for solving the problem]

[0008] The invention according to claim 1 for solving the above problem is an electronic whiteboard system configured by adding an electronic whiteboard and a projection device to an existing whiteboard, A first upper hanger rail is arranged along the upper side of the existing blackboard, and a first lower hanger rail that forms a pair with the first upper hanger rail is arranged along the lower side of the existing blackboard, and a second upper hanger rail is arranged along the upper side of the first upper hanger rail, and a second lower hanger rail that forms a pair with the second upper hanger rail is arranged along the lower side of the first lower hanger rail, A first sliding frame is hung between the first upper hanger rail and the first lower hanger rail so as to be slidable laterally across the existing blackboard, and a second sliding frame is hung between the second upper hanger rail and the second lower hanger rail so as to be slidable laterally across the front or back side of the first sliding frame without coming into contact with the first sliding frame, across the existing blackboard, The integrated electronic whiteboard system is configured by attaching one or two of the electronic whiteboards to the first slide frame, and attaching the projection support means and projector to the second slide frame.

[0009] In one embodiment, the first upper hanger rail and the second upper hanger rail are integrally formed by aluminum extrusion molding, and the first lower hanger rail and the second lower hanger rail are integrally formed by aluminum extrusion molding.

[0010] In one embodiment, a first cable rail is installed above and extending parallel to the second upper hanger rail. Preferably, the first cable rail is integrally formed with the second upper hanger rail and the first upper hanger rail by aluminum extrusion molding.

[0011] In one embodiment, a second cable rail is installed above and parallel to the first lower hanger rail, and preferably the second cable rail is integrally formed with the first and second lower hanger rails by aluminum extrusion molding.

[0012] In one embodiment, a curtain rail is arranged along the underside of the first upper hanger rail, and a curtain that covers the existing blackboard is hung from the curtain rail. The curtain may be equipped with an automatic opening and closing mechanism.

[0013] In one embodiment, the projection support means is a lightweight whiteboard, and in another embodiment, the projection support means is a screen.

[0014] In one embodiment, a constant force spring is provided between the first sliding frame and the back of the electronic whiteboard, and / or between the second sliding frame and the projection support means, thereby enabling the electronic whiteboard and / or the projection support means to move up and down.

[0015] In one embodiment, the first sliding frame has runners at its upper and lower ends that engage with and move on the first upper hanger rail or the first lower hanger rail, and the second sliding frame has runners at its upper and lower ends that engage with and move on the second upper hanger rail or the second lower hanger rail.

[0016] In one embodiment, the first upper hanger rail, first lower hanger rail, second upper hanger rail and second upper hanger rail have a slide slit formed on one side or bottom surface extending in the longitudinal direction to allow movement of the runner support plate extending from the end of the first sliding frame and second sliding frame.

[0017] In one embodiment, the runner comprises a horizontal plate fixed to the runner support plate, a pivot block attached to the horizontal plate, one or two pairs of vertical rollers pivotally supported by the pivot block, and a pair of horizontal rollers installed on the pivot block, the rotation axes of the pair of horizontal rollers being offset from each other in opposite directions relative to the longitudinal axis of each hanger rail. The pair of horizontal rollers may be slightly movable horizontally on the pivot block.

[0018] The invention according to claim 16 for solving the above problem is an electronic whiteboard system configured by attaching an electronic whiteboard to an existing whiteboard, A first upper hanger rail is arranged along the upper edge of the existing blackboard, and a first lower hanger rail that forms a pair with the first upper hanger rail is arranged along the lower edge of the existing blackboard, and a first sliding frame for attaching the electronic blackboard is hung between the first upper hanger rail and the first lower hanger rail so as to be slidable laterally across the existing blackboard, The present invention also provides a composite electronic whiteboard system in which a curtain rail is arranged along the underside of the first upper hanger rail, and a curtain is hung from the curtain rail to cover the existing whiteboard.

[0019] The invention according to claim 18 for solving the above problem is an electronic whiteboard system configured by attaching an electronic whiteboard to an existing whiteboard, A first upper hanger rail is arranged along the upper side of the existing blackboard, and a first lower hanger rail that forms a pair with the first upper hanger rail is arranged along the lower side of the existing blackboard, A first sliding frame for mounting the electronic whiteboard is hung between the first upper hanger rail and the first lower hanger rail so as to be slidable laterally across the existing whiteboard, This is a composite electronic blackboard system in which a roll screen case is installed on one side or the top edge of the existing blackboard, the stored roll screen being able to be pulled out sideways or downwards, and a projector is arranged above the existing blackboard. [Effects of the Invention]

[0020] As described above, the composite electronic whiteboard system of the present invention allows the existing whiteboard to be left as is, and various devices necessary for realizing the GIGA School Concept to be assembled at relatively low cost, enabling a variety of usage modes, which has the effect of contributing to the realization of the GIGA School Concept.In addition, by integrally molding multiple hanger rails, it has the effect of reducing material costs and construction costs. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a front view showing an embodiment of a combined electronic whiteboard system according to the present invention; [Figure 2] 1 is an enlarged side view showing an embodiment of a combined electronic whiteboard system according to the present invention; [Figure 3] FIG. 10 is a front view showing another embodiment of the integrated electronic whiteboard system according to the present invention. [Figure 4] FIG. 10 is an enlarged side view showing another embodiment of the integrated electronic whiteboard system according to the present invention. [Figure 5] 1 is a front view showing an example of a configuration of a slide frame in a combined electronic whiteboard system according to the present invention; [Figure 6] FIG. 10 is a front view showing another example of the configuration of the slide frame in the integrated electronic whiteboard system according to the present invention. [Figure 7] FIG. 10 is a front view showing yet another example of the configuration of the slide frame in the integrated electronic whiteboard system according to the present invention. [Figure 8] FIG. 10 is a front view showing yet another example of the configuration of the slide frame in the integrated electronic whiteboard system according to the present invention. [Figure 9] FIG. 10 is a front view showing yet another example of the configuration of the slide frame in the integrated electronic whiteboard system according to the present invention. [Figure 10] 1 is an exploded perspective view showing an example of the configuration of a runner in a combined electronic whiteboard system according to the present invention; [Figure 11] 1 is a plan view showing an example of the configuration of a runner in a combined electronic whiteboard system according to the present invention; [Figure 12] 1 is a side view showing an example of a configuration of a runner in a combined electronic whiteboard system according to the present invention; [Figure 13] FIG. 10 is an exploded perspective view showing another example of the configuration of the runner in the integrated electronic whiteboard system according to the present invention. [Figure 14] 1 is a side view showing an example of the configuration of a hanger rail in a combined electronic whiteboard system according to the present invention; [Figure 15]1 is a diagram showing an example of the positional relationship between an existing blackboard, an electronic blackboard, and a projection-compatible board in a combined electronic blackboard system according to the present invention. FIG. [Figure 16] 10 is a diagram showing another positional relationship between the existing blackboard, the electronic blackboard, and the projection-compatible board in the integrated electronic blackboard system according to the present invention. FIG. [Figure 17] 10 is a diagram showing yet another positional relationship between the existing blackboard, the electronic blackboard, and the projection-compatible board in the integrated electronic blackboard system according to the present invention. FIG. [Figure 18] 10 is a diagram showing yet another positional relationship between the existing blackboard, the electronic blackboard, and the projection-compatible board in the integrated electronic blackboard system according to the present invention. FIG. [Figure 19] FIG. 2 is a side view showing a second embodiment of the integrated interactive whiteboard system according to the present invention. [Figure 20] FIG. 10 is a front view showing a third embodiment of the integrated interactive whiteboard system according to the present invention. [Figure 21] FIG. 10 is a side view showing a third embodiment of the integrated interactive whiteboard system according to the present invention. [Figure 22] FIG. 10 is a front view showing another example of the third aspect of the integrated interactive whiteboard system according to the present invention. [Figure 23] FIG. 10 is a side view showing another example of the third embodiment of the integrated interactive whiteboard system according to the present invention. [Figure 24] FIG. 10 is a side view showing another example of the third embodiment of the integrated interactive whiteboard system according to the present invention. [Figure 25] FIG. 10 is a side view showing a fourth embodiment of the integrated interactive whiteboard system according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0022] The present invention will be described in detail with reference to the accompanying drawings. The integrated electronic whiteboard system of the present invention is basically constructed by adding an electronic whiteboard 15 to an existing blackboard 1 on which chalk is used to write, and a projection-compatible board 16, which is usually a lightweight whiteboard, as a projection-compatible means.

[0023] More specifically, a first upper hanger rail 5 is arranged along the upper side of the existing blackboard 1, and a first lower hanger rail 6 that pairs with the first upper hanger rail is arranged along the lower side of the existing blackboard 1, and a second upper hanger rail 7 is arranged along the upper side of the first upper hanger rail 5, and a second lower hanger rail 8 that pairs with the second upper hanger rail 7 is arranged along the lower side of the first lower hanger rail 6. Note that while most existing blackboards 1 are flat blackboards, there are also curved or semi-curved blackboards, in which case the above-mentioned hanger rails are curved to fit the curved surface.

[0024] The first upper hanger rail 5 and the second upper hanger rail 7, and the first lower hanger rail 6 and the second lower hanger rail 8 may each be installed separately as independent units, but preferably the first upper hanger rail 5 and the second upper hanger rail 7 are integrally formed by aluminum extrusion molding, and the first lower hanger rail 6 and the second lower hanger rail 8 are also integrally formed by aluminum extrusion molding.

[0025] Each hanger rail is installed by fastening the connecting plates 9 between the first upper hanger rail 5 and the second upper hanger rail 7, and the connecting plates between the first lower hanger rail 6 and the second lower hanger rail 8, to the wall surface 50 with screws or the like to ensure sufficient mounting strength (see Figure 14). Each of the upper and lower hanger rails 5-8 has a slide opening (hereinafter referred to as a slit) extending in the length direction, formed on one side surface (Figures 1-13) or the bottom surface (Figure 14), for moving a runner 31 (described later).

[0026] A first sliding frame 11 is hung between the first upper hanger rail 5 and the first lower hanger rail 6 so as to be able to slide laterally across the existing blackboard 1, and a second sliding frame 12 is hung between the second upper hanger rail 7 and the second lower hanger rail 8 so as to be able to slide laterally across the existing blackboard 1 and on the front side of the first sliding frame 11 without coming into contact with the first sliding frame 11 (see Figure 2).

[0027] An electronic whiteboard 15 is attached to the first slide frame 11, and a projection-compatible board 16 and a projector 17 are attached to the second slide frame 12. Typically, one electronic whiteboard 15 is installed in the first slide frame 11, but two may be installed, one above the other. The projection-compatible board 16 used here is not a large, heavy board comparable in size to the existing wall-mounted blackboard 1, but is, for example, a relatively lightweight whiteboard with an aluminum frame and dimensions of approximately 100 cm x 300 cm, or a screen plate (flat screen).

[0028] The projector 17 is an ultra-short focus type equipped with an electronic whiteboard function, and is installed on a fixed plate 17a extending from the upper part of the second sliding frame 12 (see Figure 2), and moves laterally together with the second sliding frame 12 and the projection-compatible board 16. The first sliding frame 11 and the second sliding frame 12 are provided with stands 18, 19 on which tablets, personal computers, etc. can be placed as appropriate.

[0029] In a preferred embodiment, a first cable rail 21 is installed above the second upper hanger rail 7 and extends parallel to it, and if necessary, a second cable rail 22 is installed above the first lower hanger rail 6 and extends parallel to it (see Figures 1 and 2). The first cable rail 21 can be molded integrally with the second upper hanger rail 7 and the first upper hanger rail 5 by aluminum extrusion molding. The second cable rail 22 can be molded integrally with the first lower hanger rail 6 and the second lower hanger rail 8 by aluminum extrusion molding.

[0030] The first cable rail 21 and the second cable rail 22 each have an open top, and in consideration of cable protection and appearance, cables are stored via a cable carrier, etc. For example, the first cable rail 21 stores a power cable for the projector 17, and the second cable rail 22 stores a power cable for the electronic whiteboard 15.

[0031] In the illustrated example, an electronic whiteboard 15 is attached to the first inner sliding frame 11 and a projection-compatible board 16 is attached to the second outer sliding frame 12, but it is also possible to attach the projection-compatible board 16 to the first inner sliding frame 11 and an electronic whiteboard 15 to the second outer sliding frame 12.

[0032] Furthermore, a curtain rail 23 with a sliding opening on its underside is placed along the underside of the first upper hanger rail 5, and a curtain 24 covering the existing blackboard 1 is hung from this curtain rail 23 via a curtain runner as appropriate (see Figures 3 and 4). This curtain 24 is installed primarily to prevent chalk dust from scattering, thereby avoiding health hazards to humans, and to prevent chalk dust from accumulating on peripheral equipment and causing malfunctions, as well as to ensure a good appearance. It is preferable that the curtain rail 23 be designed to open and close automatically via remote control. To do this, any commercially available automatic opening and closing device can be hung from the curtain rail 23.

[0033] The first and second sliding frames 11 and 12 may be H-shaped as shown in Figures 1 to 4, but they can also be configured in shapes such as X and inverted V. Figures 5 to 9 show examples, including two straight rods 25 simply crossing each other in an X shape (Figure 5), two curved rods 26 joined at their tops (Figure 6), straight rods 28 extending diagonally from the four corners of a vertically elongated flat plate 27 (Figure 7), the same configuration as in Figure 7 formed from a single flat plate 29 (Figure 8), and two straight rods 30 assembled in a V or inverted V shape (Figure 9). Although not shown, a truss structure is also possible. In all of these cases, runners 31 that engage with and move on the hanger rails are attached to the ends of each rod.

[0034] The configuration of the runner 31 is arbitrary, but for example, when the upper and lower hanger rails 5 to 8 each have a slit formed on one side as shown in Figures 1 to 4, it is possible to use a configuration consisting of a U-shaped support case 33 having a horizontal plate 32 fixed to the runner support plate at the tip of each rod, a support block 35 supported within the support case 33 and supporting one or two pairs of vertical rollers 34 on both sides, and a pair of horizontal rollers 36, 36a installed on the support block 35 (Figures 10 to 13).

[0035] In this case, the rotation axes of the pair of horizontal rollers 36, 36a are offset in opposite directions from each other with respect to the longitudinal axis of each hanger rail, and are arranged so as to slightly protrude from the support case 33 (see FIG. 11). With this configuration, the horizontal rollers 36, 36a come into contact with the inner surface of the hanger rail while rolling within the hanger rail, thereby absorbing and reducing impacts and preventing lateral shaking of the runner 31 while rolling, allowing the electronic whiteboard 15 and the projection-compatible board 16 to move laterally smoothly and stably.

[0036] The pair of horizontal rollers 36, 36a may be made slightly movable horizontally on the upper surface of the support case 33. To achieve this, for example, a rotating plate 37 having a restricting groove 38 is axially mounted on the support case 33, and the horizontal rollers 36, 36a are installed on the rotating plate 37 (see FIG. 13). A restricting bolt 39 is screwed into the restricting groove 38, and the rotating plate 37 is able to rotate by the width of the restricting groove 38. With this configuration, the rolling of the runner 31 becomes even smoother, allowing the electronic whiteboard 15 and the projection-compatible board 16 to move stably in the lateral direction.

[0037] The electronic whiteboard 15 may be mounted on the first sliding frame 11 so that it can move up and down. To achieve this, it is effective to use a constant force spring (Conston (registered trademark) spring). The constant force spring has a balanced restoring force in the rewinding direction against the load drawn from the spring case. For example, the spring case is fixed to a crossbar of the first sliding frame 11, and the tip of the spring drawn from the spring case is fixed to the back surface of the electronic whiteboard 15. In the embodiment shown in FIGS. 5 and 6, the spring case is fixed to a crossbar that runs between the straight rods 25, 25 or the curved rods 26, 26, and in the embodiment shown in FIGS. 7 and 8, the spring case is fixed to the vertically elongated flat plate 27 or flat plate 29.

[0038] A pair of constant force springs, one on each side, is preferably provided to ensure stable and smooth vertical movement of the electronic whiteboard 15. In addition, the first sliding frame 11 is provided with, for example, a vertical member having a sliding groove to serve as a guide rail that supports the vertical movement of the electronic whiteboard 15, and a sliding part that engages with the sliding groove and slides is provided on the back surface of the electronic whiteboard 15. The projection-compatible board 16 can also be made vertically movable by providing a constant force spring, as in the case of the electronic whiteboard 15.

[0039] The first sliding frame 11 and / or the second sliding frame 12 can be configured as an automatic sliding type. To achieve this, an automatic door sliding mechanism for an automatic door can be repurposed. That is, an electric motor and a drive pulley driven by the electric motor are provided at one end of the first upper hanger rail 5 and the second upper hanger rail 7, and a driven pulley is provided at the other end. A timing belt is wound around the drive pulley and the driven pulley, and the upper ends of the first sliding frame 11 and / or the second sliding frame 12 are suspended from a door hanger connected to the timing belt. In this case, the first sliding frame 11 and the second sliding frame 12 have slits on their undersides.

[0040] Although not shown, both sides and corners of the moving electronic whiteboard 15 and projection board 16 are covered with soft material covers as appropriate for the safety of students and teachers, and spaces are provided between each component and device to prevent fingers from getting pinched when the first sliding frame 11 and second sliding frame 12 move. Furthermore, end caps equipped with springs and cushioning material are fitted to the ends of each hanger rail to absorb impacts at the moving ends of the electronic whiteboard 15 and projection board 16.

[0041] The integrated electronic whiteboard system of the present invention is primarily constructed to realize the GIGA School concept, utilizing an existing whiteboard 1 while leaving some space for writing, but it can also be used in schools, cram schools, public facilities, commercial facilities, hospitals, and any other facility. The electronic whiteboard 15 used in the integrated electronic whiteboard system of the present invention is equipped with computer functions, and the written and projected content can be saved as is and can also be enlarged and projected onto a projection-compatible board 16 via a projector 17 (mirroring projection). This prevents students from being unable to see what the teacher is writing on the electronic whiteboard 15 due to the teacher's body getting in the way, allowing for smoother lessons.

[0042] Although not shown in the figure, the realization of the GIGA School Initiative also includes a teacher's terminal used by the teacher and a student terminal provided for each student. Typically, the teacher's terminal is a tablet or smartphone, and the student's terminal is a tablet. The teacher's terminal and the student's terminal are connected to the electronic whiteboard 15 via Wi-Fi, and are set up to enable mutual communication between the electronic whiteboard 15 and each terminal.

[0043] The parts of the existing blackboard 1 that are not covered by the electronic blackboard 2 and the projection-compatible board 16 can be written on with chalk or the like as in the conventional way. It is preferable to provide a plurality of sensors (not shown) that detect the movement of chalk, markers, fingertips, etc. around the periphery of the existing blackboard 1 and the projection-compatible board 16 so that the written content can be captured on the electronic blackboard 15. These sensors can be the same as those used in general electronic blackboards, such as infrared blocking sensors. In this case, the output signal from the sensor corresponding to the written content is captured by the electronic blackboard 15, displayed as is on the electronic blackboard 2, and also converted into digital data and saved. This saved data can be shared and used effectively by teachers and students.

[0044] Projector 17 is capable of mirroring the screen of the mobile device used by the teacher. When using a projector 17 equipped with this mirroring function, a dedicated app provided by the projector manufacturer is installed on the mobile device. When using a projector 17 without such a function, a streaming device, which is a small device with casting and mirroring functions, is connected to projector 17 via HDMI (registered trademark), and the mobile device is connected to this via Wi-Fi.

[0045] The streaming device can be a widely available, inexpensive device such as Google Chromecast. The casting function here refers to a function that projects a larger version of the video being viewed, transferred from the mobile terminal 5 to the streaming device, onto the projection-compatible board 16 via the projector 17. The mirroring function refers to a function that projects the content screen stored on the mobile terminal directly onto the projection-compatible board 16 via the projector 17, enabling screen sharing.

[0046] When the interactive whiteboard system according to the present invention is implemented in an educational setting, content such as teaching materials is created, edited, and saved on a mobile device. The teaching materials can be commercially available electronic teaching materials or teaching materials provided free of charge that are installed and used as is, or teachers can customize them to their own liking. Furthermore, television screens, YouTube (registered trademark), and other similar sites can also be used. The teaching materials to be used can also be created and edited using a separate PC and saved on the mobile device.

[0047] For example, a template image such as music sheet can be projected onto the projection board 16 and students can write on it with a marker. Furthermore, depending on the content of the lesson, the projection position on the projection board 16 can be slid left, center, or right, or dual screens can be projected on the left and right, making the lesson flow much more smoothly. For example, an electronic textbook screen can be projected on the left side and thumbnails of students' answers on the right side. By comparing these displays, students can confirm various thoughts, which can lead to new insights and the creation of new ideas. Furthermore, videos and photos taken in real time on a mobile device can be projected on the spot, and students can write on the screen with their fingertips or an electronic pen and save it. It can also be used in conjunction with the display screen of the electronic whiteboard 15.

[0048] In the first embodiment of the composite electronic whiteboard system of the present invention having the above configuration, the first slide frame 11 and the second slide frame 12 can be moved laterally without contacting each other, so that the electronic whiteboard 15 and the projection-compatible board 16 can be moved to any position and used, making it easier to conduct lessons that comply with the GIGA School Initiative.

[0049] The integrated electronic whiteboard system according to the present invention can be used in the following manners (positional relationships). <Usage 1> Usage centered on the existing blackboard 1 (Figure 15) When the existing blackboard 1 is mainly used and lessons are conducted using chalk as in the past, the first sliding frame 11 is moved to the end to position the electronic blackboard 15 at the end, and the second sliding frame 12 is moved to the end to position the projection-compatible board 16 at the end. As a result, the electronic blackboard 15 is hidden behind the projection-compatible board 16. If the projection-compatible board 16 is vertically movable, it is moved up or down to the desired height. In this state, images can be projected onto the projection-compatible board 16 using the projector 17. Furthermore, it is possible to write on the projection-compatible board 16 using a marker, and the projection-compatible board 16 can also be used as an interactive board, allowing writing to be done with a fingertip or an electronic pen.

[0050] <Usage 2> Usage centered on the projection board 16 (Figure 16) The electronic whiteboard 15 is moved to the edge or the center of the existing whiteboard 1, and the projection-compatible board 16 is moved above it, so that the electronic whiteboard 15 is hidden behind the projection-compatible board 16. If the electronic whiteboard 15 and the projection-compatible board 16 are vertically movable, they are moved up or down to the desired height. In this case, writing can be done on the projection-compatible board 16 using a marker, and the projection-compatible board 16 can also be used as an interactive board, allowing writing with a fingertip or an electronic pen. Writing can be done on the exposed existing whiteboard 1 with chalk.

[0051] <Usage 3> Usage using three devices (Fig. 1, 3, 17, 18) In the most common and recommended usage mode, the electronic whiteboard 15 is positioned at the edge of the existing whiteboard 1, and the projection-compatible board 16 is moved to a position where the electronic whiteboard 15 is not obscured. If the electronic whiteboard 15 and the projection-compatible board 16 are vertically movable, they are moved up and down to the desired height. In this case, writing can be done with chalk on the existing whiteboard 1, and writing can be done with a marker on the projection-compatible board 16. Furthermore, the projection-compatible board 16 can be made into an interactive board, allowing writing to be done with a fingertip or an electronic pen.

[0052] 19 shows a second embodiment of the present invention, which is an electronic whiteboard system configured by attaching an electronic whiteboard 15 to an existing whiteboard 1, in which a first upper hanger rail 5 is arranged along the upper side of the existing whiteboard 1, and a first lower hanger rail 6 that pairs with the first upper hanger rail 5 is arranged along the lower side of the existing whiteboard 1. A first sliding frame 11 for attaching the electronic whiteboard 15 is suspended between the first upper hanger rail 5 and the first lower hanger rail 6 so that it can slide laterally across the existing whiteboard 1. A curtain rail 23 is arranged along the underside of the first upper hanger rail 5, and a curtain 24 that covers the existing whiteboard 1 is hung from the curtain rail 23. The curtain 24 is equipped with an automatic opening and closing mechanism.

[0053] In short, this second embodiment does not include the projection-compatible board 16 and its mounting means 12, which are the projection-compatible means of the first embodiment. If necessary, a projector can be installed on the upper wall surface of the existing blackboard 1 so that images can be projected directly onto the existing blackboard 1.

[0054] 20 to 24 show a third embodiment of the present invention, which is an electronic whiteboard system configured by attaching an electronic whiteboard 15 to an existing whiteboard 1, in which a first upper hanger rail 5 is arranged along the top edge of the existing whiteboard 1, and a first lower hanger rail 6 that pairs with the first upper hanger rail 5 is arranged along the bottom edge of the existing whiteboard 1, a first sliding frame 11 for attaching the electronic whiteboard 15 is suspended between the first upper hanger rail 5 and the first lower hanger rail 6 so that it can slide horizontally across the existing whiteboard 1, a roller blind case 41 is installed on one side or the top edge of the existing whiteboard 1, and a screen 42 is installed so that it can be pulled out horizontally or downward (in the examples shown in FIGS. 20 and 21, it is installed on the side, and in the examples shown in FIGS. 22 to 24, it is installed on the top), and a projector 17 is provided above the existing whiteboard 1 (on the wall or the first upper hanger rail 5).

[0055] When installing the roller shade case 41 along the upper side of the existing blackboard 1, for example, by attaching a plurality of hooks 51 to the upper surface of the roller shade case 41 and hooking these hooks 51 onto the raised portions 52 of the shafts of the runners 31 engaged with the first upper hanger rail 5, the roller shade case 41 can be made movable to any position (see FIG. 23). Also, by fixing slide members 53 made of hard resin shaped to fit the hooks 51 to the inside of the hooks 51 and hooking the slide members 53 onto the first upper hanger rail 5, the roller shade case 41 can be made movable to any position (see FIG. 24).

[0056] When using the projector 17, the screen 42 is pulled out the desired distance from the roll screen case 41, and when pulled out horizontally, it is fixed on the existing blackboard 1 by means of a magnet, hook, or the like, and maintained in this pulled-out state. When pulled out vertically, it can be stopped at the desired position in the same way as a general roll screen. In this embodiment, the electronic blackboard 15 can be moved to an appropriate position, and when the screen 42 is not pulled out, writing can be done on the entire existing blackboard 1, and when the screen 42 is pulled out, writing can be done on the exposed part of the existing blackboard 1.

[0057] The above explanation mainly relates to the case where the first upper hanger rail 5 and the second upper hanger rail 7 are integrally molded, and the first lower hanger rail 6 and the second lower hanger rail 8 are integrally molded, but there are also cases where the first upper hanger rail 5 and the second upper hanger rail 7, and the first lower hanger rail 6 and the second lower hanger rail 8 are separate units and installed separately. In that case, it is preferable to provide locking means 54, 55 on the upper surface of the first upper hanger rail 5 and the underside of the second upper hanger rail 7 so that they can lock together, and to provide locking means 54, 55 on the upper surface of the second lower hanger rail 8 and the underside of the first lower hanger rail 6 so that they can lock together.

[0058] With this configuration, the second upper hanger rail 7 is fixed first, and then the first upper hanger rail 5 is suspended via the locking means 54, 55, and in this state the first upper hanger rail 5 can be easily installed parallel to the second upper hanger rail 7. The same applies to the first lower hanger rail 6 and the second lower hanger rail 8. Furthermore, the same applies to the first upper hanger rail 5 and the curtain rail 23. [Industrial Applicability]

[0059] The composite electronic whiteboard system of the present invention is as described above, and allows the existing whiteboard to be left as is, while the various devices necessary for realizing the GIGA School Concept can be assembled at relatively low cost, enabling a variety of usage modes, which has the effect of contributing to the realization of the GIGA School Concept.In addition, since multiple hanger rails can be molded as a single unit, it has the effect of reducing material costs and construction costs, and therefore has great industrial applicability. [Explanation of symbols]

[0060] 1 Existing blackboard 5. First upper clothes rail 6. First lower clothes rail 7 Second upper clothes rail 8 Second lower clothes rail 11 Slide 1 12 Second slide slot 15. Electronic Whiteboard 16 Projection compatible board 17. Projector 21 No. 1 Cable Rail 22 No. 2 Cable Rail 23 Curtain rail 24 Curtains 41 Roller Screen Case 42 Roller Blind

Claims

1. An electronic whiteboard system configured by adding an electronic whiteboard and a projection-compatible means to an existing whiteboard, A first upper hanger rail is arranged along the upper side of the existing blackboard, and a first lower hanger rail that forms a pair with the first upper hanger rail is arranged along the lower side of the existing blackboard, and a second upper hanger rail is arranged along the upper side of the first upper hanger rail, and a second lower hanger rail that forms a pair with the second upper hanger rail is arranged along the lower side of the first lower hanger rail, A first sliding frame is hung between the first upper hanger rail and the first lower hanger rail so as to be slidable laterally across the existing blackboard, and a second sliding frame is hung between the second upper hanger rail and the second lower hanger rail so as to be slidable laterally across the front or back side of the first sliding frame without coming into contact with the first sliding frame, across the existing blackboard. A composite electronic whiteboard system is provided in which one or two of the electronic whiteboards are attached to the first slide frame, and the projection support means and projector are attached to the second slide frame.

2. 2. The integrated electronic whiteboard system of claim 1, wherein the first upper hanger rail and the second upper hanger rail are integrally formed by aluminum extrusion, and the first lower hanger rail and the second lower hanger rail are integrally formed by aluminum extrusion.

3. 2. The integrated electronic whiteboard system according to claim 1, wherein a first cable rail is installed above the second upper hanger rail and extends parallel thereto.

4. 4. The integrated electronic whiteboard system according to claim 3, wherein the first cable rail is integrally formed with the second upper hanger rail and the first upper hanger rail by aluminum extrusion molding.

5. 2. The integrated electronic whiteboard system according to claim 1, wherein a second cable rail is installed above the first lower hanger rail and extends parallel thereto.

6. 6. The integrated electronic whiteboard system according to claim 5, wherein the second cable rail is integrally formed with the first lower hanger rail and the second lower hanger rail by aluminum extrusion molding.

7. 2. The integrated electronic whiteboard system according to claim 1, wherein a curtain rail is arranged along the underside of the first upper hanger rail, and a curtain that covers the existing whiteboard is hung from the curtain rail.

8. The integrated interactive whiteboard system according to claim 7 , wherein the curtain has an automatic opening and closing mechanism.

9. 2. The integrated interactive whiteboard system of claim 1, wherein said projection-compatible means is a lightweight whiteboard.

10. 2. The integrated electronic whiteboard system according to claim 1, wherein said projection support means is a screen plate.

11. 2. The composite existing blackboard system of claim 1, wherein a constant force spring is provided between the first sliding frame and the back of the electronic blackboard, and / or between the second sliding frame and the projection support means, thereby enabling the electronic blackboard and / or the projection support means to move up and down.

12. 2. The integrated electronic whiteboard system of claim 1, wherein the first sliding frame has runners at its upper and lower ends that engage with and move on the first upper hanger rail or the first lower hanger rail, and the second sliding frame has runners at its upper and lower ends that engage with and move on the second upper hanger rail or the second lower hanger rail.

13. 13. The integrated electronic whiteboard system of claim 12, wherein the first upper hanger rail, the first lower hanger rail, the second upper hanger rail and the second upper hanger rail have a slit formed on one side or bottom surface extending in the length direction to allow movement of a runner support plate extending from the end of the first sliding frame and the second sliding frame.

14. 14. The integrated electronic whiteboard system of claim 13, wherein the runner is composed of a horizontal plate fixed to the runner support plate, a support block attached to the horizontal plate, one or two pairs of vertical rollers supported by the support block, and a pair of horizontal rollers installed on the support block, and the rotation axes of the pair of horizontal rollers are arranged offset from each other in opposite directions relative to the longitudinal axis of each hanger rail.

15. 15. The integrated electronic whiteboard system according to claim 14, wherein the pair of horizontal rollers are horizontally movable on the support blocks.

16. An electronic whiteboard system configured by attaching an electronic whiteboard to an existing whiteboard, A first upper hanger rail is arranged along the upper edge of the existing blackboard, and a first lower hanger rail that forms a pair with the first upper hanger rail is arranged along the lower edge of the existing blackboard, and a first sliding frame for attaching the electronic blackboard is hung between the first upper hanger rail and the first lower hanger rail so as to be slidable laterally across the existing blackboard, Also, a curtain rail is arranged along the underside of the first upper hanger rail, and a curtain that covers the existing blackboard is hung from the curtain rail, thereby forming a composite electronic blackboard system.

17. The integrated interactive whiteboard system according to claim 16, wherein the curtain has an automatic opening and closing mechanism.

18. An electronic whiteboard system configured by attaching an electronic whiteboard to an existing whiteboard, A first upper hanger rail is arranged along the upper edge of the existing blackboard, and a first lower hanger rail that forms a pair with the first upper hanger rail is arranged along the lower edge of the existing blackboard, A first sliding frame for mounting the electronic whiteboard is hung between the first upper hanger rail and the first lower hanger rail so as to be slidable laterally across the existing blackboard, A composite electronic blackboard system is provided in which a roll screen case is installed on one side or upper edge of the existing blackboard, the stored roll screen being able to be pulled out laterally or downward, and a projector is arranged above the existing blackboard.

19. 2. The integrated electronic whiteboard system of claim 1, wherein when the first upper hanger rail and the second upper hanger rail, and the first lower hanger rail and the second lower hanger rail are separate and installed individually, locking means for locking the upper surface of the first upper hanger rail and the lower surface of the second upper hanger rail to each other are provided, and locking means for locking the upper surface of the second lower hanger rail and the lower surface of the first lower hanger rail to each other are provided.

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