Integrated electronic whiteboard system

Abstract

The objective of the present invention is to provide a comprehensive electronic whiteboard system that allows for a variety of usage scenarios by installing various devices required for realizing the GIGA School Project at a relatively low cost while leaving the existing whiteboard as it is. [Solution] A first upper hanger rail 5 is arranged along the top edge of an existing blackboard 1, a first lower hanger rail 6 is arranged along the bottom edge thereof, a second upper hanger rail 7 is arranged along the top side of the first upper hanger rail 5, and a second lower hanger rail 8 is arranged along the bottom side of the first lower hanger rail 6. A first sliding frame 11 for mounting an electronic blackboard 15 is suspended between the first upper hanger rail 5 and the first lower hanger rail 6, and a second sliding frame 12 for mounting a projection-compatible board 16 and a projector 17 is suspended 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 at a relatively low cost 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 introducing 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 child and student and fosters creativity. Specifically, each child and 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 difficult to abandon even with the advancement of ICT education. On the other hand, there are limitations in terms of budget and installation space to provide electronic blackboards in addition to conventional blackboards in each classroom. In particular, it is extremely difficult to introduce large electronic blackboards to replace blackboards.

[0004] Therefore, it has been considered to use an existing blackboard or whiteboard, place a projector on the top of the board, and project the image onto the board to make it an electronic blackboard (interactive). In this case, since 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 (JP Patent Publication No. 2021-128299, JP Patent Publication No. 2018-189925). In addition, since the image is unclear when projected by a projector compared to an electronic blackboard, many types of electronic blackboards are installed in front of the existing blackboard and can be slid left and right so as not to interfere with writing on the existing blackboard. [Prior art documents] [Patent documents]

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

[0006] In the above-mentioned interactive methods proposed in the past, an existing blackboard is turned 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 re-covered, which is a labor-intensive and costly task. In addition, the usage of the proposed systems is limited to projecting images onto the blackboard surface with a projector, using the electronic blackboard, and moving the electronic blackboard to write on the blackboard, and no other usage is anticipated.

[0007] The present invention has been made in consideration of the problems with the conventional systems described above, and has as its objective the provision of a comprehensive electronic whiteboard system that allows the existing whiteboard to be left as is, while the various devices required to realize the GIGA School Project can be assembled at relatively low cost, enabling a variety of usage scenarios. [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 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 side or back side of the first sliding frame without coming into contact with the first sliding frame, One or two of the electronic whiteboards are attached to the first slide frame, and the projection support means and the projector are attached to the second slide frame. the law of nature, the first slide frame is provided at its upper end and lower end with runners which engage with and move on the first upper hanger rail or the first lower hanger rail, and the second slide frame is provided at its upper end and lower end with runners which engage with and move on the second upper hanger rail or the second lower hanger rail, The first upper hanger rail, the first lower hanger rail, the second upper hanger rail and the second upper hanger rail each have a slit formed on one side or bottom surface thereof extending in the length direction to allow movement of a runner support plate extending from an end of the first slide frame and the second slide frame, The runner is characterized in that it is composed of 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, 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 of the hanger rails. It is an integrated electronic whiteboard system. In one embodiment, the pair of horizontal rollers are made finely movable in the horizontal direction on the support block.

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

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

[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 aluminium extrusion.

[0012] In one embodiment, a curtain rail is disposed along the lower side of the first upper hanger rail, and a curtain that covers the existing blackboard is hung from the curtain rail. The curtain may be provided 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] The invention according to claim 13 to solve the above problem is as follows: An electronic whiteboard system configured by adding 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 is paired with the first upper hanger rail is arranged along the lower side of the existing blackboard, and a first sliding frame for mounting the electronic blackboard is suspended 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 disposed along the lower side of the first upper hanger rail, and a curtain covering the existing blackboard is hung from the curtain rail, The first slide frame is provided at its upper end and lower end with runners that engage with the first upper hanger rail or the first lower hanger rail and move, The first upper hanger rail and the first lower hanger rail are provided on one side or bottom with a slit extending in the length direction to allow movement of a runner support plate extending from an end of the first slide frame, The runner is composed of 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, and the rotation axes of the pair of horizontal rollers are arranged in opposite directions to each other with respect to the longitudinal axis of each of the hanger rails. . In one embodiment, the pair of horizontal rollers are made finely movable in the horizontal direction on the support block.

[0016] The invention according to claim 15 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 is paired 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, A roll screen case is installed on one side or the upper side of the existing blackboard, and the roll screen to be stored therein is installed so as to be able to be pulled out in the horizontal or downward direction, and a projector is arranged above the existing blackboard, The first slide frame is provided at its upper end and lower end with runners that engage with the first upper hanger rail or the first lower hanger rail and move, The first upper hanger rail and the first lower hanger rail are provided on one side or bottom with a slit extending in the length direction to allow movement of a runner support plate extending from an end of the first slide frame, The runner is composed of 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, 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 of the hanger rails. In one embodiment, the pair of horizontal rollers are made finely movable in the horizontal direction on the pivot block. Effect 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, while the various equipment necessary for the realization of the GIGA School Initiative can be assembled at relatively low cost, enabling a variety of usage scenarios, which has the effect of contributing to the realization of the GIGA School Initiative, and also has the effect of reducing material costs and construction costs by integrally molding multiple hanger rails. [Brief description of the drawings]

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

[0022] The embodiment of the present invention will be described in detail with reference to the attached drawings. The integrated electronic whiteboard system according to the present invention is basically configured by attaching 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 each of the hanger rails is curved to match 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 attached separately as independent entities, but preferably the first upper hanger rail 5 and the second upper hanger rail 7 are integrally formed by aluminium extrusion molding, and the first lower hanger rail 6 and the second lower hanger rail 8 are also integrally formed by aluminium extrusion molding.

[0025] Each hanger rail is installed by fixing 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 a wall surface 50 with screws or the like with sufficient mounting strength (see Fig. 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, for moving a runner 31 (described later), on one side surface (Figs. 1-13) or the bottom surface (Fig. 14).

[0026] A first sliding frame 11 is suspended 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 suspended between the second upper hanger rail 7 and the second lower hanger rail 8 so as to be able to slide laterally across 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 board 16 and a projector 17 are attached to the second slide frame 12. Usually, one electronic whiteboard 15 is installed in the first slide frame 11, but sometimes two are installed, one above the other. The projection board 16 used here is not a large and heavy board comparable in size to the existing blackboard 1 installed on the wall, but is, for example, a relatively lightweight whiteboard with an aluminum frame and dimensions of about 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 slide frame 12 (see FIG. 2), and moves laterally together with the second slide frame 12 and the projection board 16. The first slide frame 11 and the second slide frame 12 are provided with stands 18, 19 on which tablets, personal computers, etc. are placed as appropriate.

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

[0030] The first cable rail 21 and the second cable rail 22 each have an open top, and in consideration of the protection of the cables and their appearance, the cables are stored via a cable carrier or the like. 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 the underside is arranged along the underside of the first upper hanger rail 5, and a curtain 24 covering the existing blackboard 1 may be hung from this curtain rail 23 via a curtain runner as appropriate (see Figs. 3 and 4). This curtain 24 is installed mainly to prevent chalk dust from scattering, to avoid health hazards to the human body, and to prevent dust from accumulating on peripheral equipment and causing equipment failure, and also to ensure a good appearance. It is preferable that the curtain rail 23 be of an automatic opening and closing type operated by a remote control. To do this, any commercially available automatic opening and closing device may be hung from the curtain rail 23.

[0033] The first slide frame 11 and the second slide frame 12 may be H-shaped as shown in Figs. 1 to 4, but may also be X-shaped or inverted V-shaped. Figs. 5 to 9 show examples, such as two straight rods 25 simply crossed in an X-shape (Fig. 5), two curved rods 26 joined at their tops (Fig. 6), straight rods 28 extending obliquely from the four corners of a vertically long flat plate 27 (Fig. 7), the form of Fig. 7 formed from a single flat plate 29 (Fig. 8), and two straight rods 30 assembled in a V-shape or inverted V-shape (Fig. 9). Although not shown, a truss structure may also be used. In any of the above cases, a runner 31 that engages with the hanger rail and moves is attached to the end of each rod.

[0034] The configuration of the runner 31 is arbitrary, but for example, when the upper and lower hanger rails 5-8 have a slit formed on one side as shown in Figures 1-4, 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 end 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 10-13).

[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 disposed 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, absorbing and reducing shocks, preventing lateral shaking of the runner 31 while rolling, and enabling the electronic whiteboard 15 and the projection board 16 to move laterally smoothly and stably.

[0036] The pair of horizontal rollers 36, 36a may be made slightly movable in the horizontal direction on the upper surface of the support case 33. For this purpose, for example, a rotating plate 37 having a restricting groove 38 is axially attached to 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 made rotatable by the width of the restricting groove 38. In this configuration, the rolling of the runner 31 becomes even smoother, and the electronic whiteboard 15 and the projection-compatible board 16 can be moved stably in the lateral direction.

[0037] The electronic whiteboard 15 may be installed 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 cross bar 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 cross bar extending 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 long flat plate 27 or flat plate 29.

[0038] A pair of constant force springs are preferably provided on the left and right sides 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 in the same manner as the electronic whiteboard 15.

[0039] The first slide frame 11 and / or the second slide frame 12 can be configured as an automatic slide type. For this purpose, an automatic door slide mechanism in an automatic door can be used. That is, an electric motor and a drive pulley driven by the electric motor are provided on one end side of the first upper hanger rail 5 and the second upper hanger rail 7, a driven pulley is provided on the other end side, a timing belt is wound around the drive pulley and the driven pulley, and the upper end of the first slide frame 11 and / or the second slide frame 12 is hung from a door hanger connected to the timing belt. In this case, the first slide frame 11 and the second slide frame 12 are provided with a slit on the lower surface.

[0040] Although not shown, both sides and corners of the moving electronic whiteboard 15 and the projection board 16 are appropriately covered with soft material covers 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 the 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 shocks at the moving ends of the electronic whiteboard 15 and the projection board 16.

[0041] The multi-functional electronic whiteboard system according to the present invention is constructed mainly to realize the GIGA School by utilizing an existing blackboard 1 and leaving some space for writing on the board, but it can be adopted in schools, preparatory schools, public facilities, commercial facilities, hospitals, and any other facilities. The electronic whiteboard 15 used in the multi-functional electronic whiteboard system according to the present invention is equipped with a computer function, and the written and projected contents thereon can be saved as they are, and can be enlarged and projected onto a projection-compatible board 16 via a projector 17 (mirroring projection). This prevents students from being unable to see the written contents when the teacher is writing on the electronic whiteboard 15 because the teacher's body gets in the way, making lessons possible.

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

[0044] The projector 17 is capable of mirroring the screen of a 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 that does not have such a function, a streaming device, which is a small device with a cast function and a mirroring function, is connected to the projector 17 via HDMI (registered trademark), and the mobile device is connected to this via Wi-Fi.

[0045] As a streaming device, a Chromecast by Google Inc., which is widely available and inexpensive, can be used. The casting function referred to here is a function that projects the video being viewed, which is transferred from the mobile terminal 5 to the streaming device, on a larger screen via the projector 17 onto the projection-compatible board 16. The mirroring function is a function that projects the content screen stored in the mobile terminal directly onto the projection-compatible board 16 via the projector 17, making it possible to share the screen.

[0046] When the electronic whiteboard system according to the present invention is implemented in an educational setting, the contents of teaching materials and the like are created, edited, and saved in a mobile terminal. 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 the teacher can customize them to his or her own specifications. Furthermore, the screen of a television or YouTube (registered trademark) can also be used. The teaching materials to be used can also be created and edited using a separate PC and saved in the mobile terminal.

[0047] For example, a template image such as music sheet can be projected onto the projection board 16, and writing can be done on top of the image with a marker. In addition, the projection position on the projection board 16 can be slid to the left, center, or right, or two screens can be projected on the left and right depending on the content of the lesson, making the lesson progress very smoothly. For example, it is possible to project the screen of an electronic textbook on the left side and thumbnails of students' answers on the right side, and by comparing the two, various thoughts can be confirmed, which is expected to encourage new awareness and lead to the creation of new ideas. Furthermore, videos and photos taken in real time with a mobile terminal can be projected immediately on the spot, and writing on the screen with a fingertip or an electronic pen can be saved. In addition, it is possible to use it in combination 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-described 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 manner (positional relationship). <Usage mode 1> Usage mode centered on existing blackboard 1 (Figure 15) When the existing blackboard 1 is mainly used and lessons are conducted by writing on the board with chalk as in the past, the first slide frame 11 is moved to the end to position the electronic blackboard 15 at the end, and the second slide frame 12 is moved to the end to position the projection board 16 at the end. As a result, the electronic blackboard 15 is hidden behind the projection board 16. If the projection board 16 can be moved up and down, it is moved up and down to the desired height. In this state, projection can be performed on the projection board 16 by the projector 17. Also, writing can be done on the projection board 16 with a marker, and the projection board 16 can be an interactive board and can be written on with a fingertip or an electronic pen.

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

[0051] <Usage 3> Usage using three devices (Figs. 1, 3, 17, 18) In the most common and recommended usage mode, the electronic whiteboard 15 is positioned at an end, and the projection-compatible board 16 is moved to a position where the electronic whiteboard 15 is not hidden, and positioned at an end of the existing blackboard 1. If the electronic whiteboard 15 and the projection-compatible board 16 are vertically movable, they are moved vertically to the desired height. In this case, writing can be done with chalk on the existing blackboard 1, writing can be done with a marker on the projection-compatible board 16, and 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 mounting the electronic whiteboard 15 is hung between the first upper hanger rail 5 and the first lower hanger rail 6 so as to be slidable laterally across the existing whiteboard 1, a curtain rail 23 is arranged along the lower side 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 provided 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 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 mounting the electronic whiteboard 15 is suspended 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 whiteboard 1, a roll screen case 41 is installed on one side or the upper side of the existing whiteboard 1, and a screen 42 is installed so as to be able to be pulled out laterally or downwardly (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 upper part), 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 blind 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 blind case 41 and hooking these hooks 51 onto the raised portion 52 of the shaft of the runner 31 engaged with the first upper hanger rail 5, the roller blind case 41 can be made movable to any position (see FIG. 23). Also, by fixing a hard resin slide member 53 shaped to fit the hook 51 to the inside of the hook 51 and hooking the slide member 53 onto the first upper hanger rail 5, the roller blind case 41 can be made movable to any position (see FIG. 24).

[0056] When the projector 17 is in use, the screen 42 is pulled out from the roll screen case 41 by a desired amount, 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 a desired position in the same manner as a general roll screen. In this embodiment, the electronic blackboard 15 is 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 bodies 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 lower surface of the second upper hanger rail 7 that lock with each other, and to provide locking means 54, 55 on the upper surface of the second lower hanger rail 8 and the lower surface of the first lower hanger rail 6 that lock with each other.

[0058] With such a 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 equipment necessary for the realization of the GIGA School Initiative can be assembled at relatively low cost, enabling a variety of usage patterns, which has the effect of contributing to the realization of the GIGA School Initiative, and because multiple hanger rails can be molded as a single unit, which 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 1st Lower Clothes Rail 7 Second upper clothes rail 8 Second Lower Clothes Rail 11 Slide 1 12 Second Slide 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 Roll Screen Case 42 Roller Blind

Claims

1. An electronic whiteboard system configured by adding an electronic whiteboard and a projection 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 side or back side of the first sliding frame without coming into contact with the first sliding frame, One or two of the electronic whiteboards are attached to the first slide frame, and the projection support means and the projector are attached to the second slide frame, the first slide frame is provided at its upper end and lower end with runners which engage with and move on the first upper hanger rail or the first lower hanger rail, and the second slide frame is provided at its upper end and lower end with runners which engage with and move on the second upper hanger rail or the second lower hanger rail, the first upper hanger rail, the first lower hanger rail, the second upper hanger rail and the second upper hanger rail each have a slit formed on one side or bottom surface thereof extending in the length direction to allow movement of a runner support plate extending from an end of the first slide frame and the second slide frame; 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 in opposite directions offset from each other relative to the longitudinal axis of each hanger rail.

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 molding, and the first lower hanger rail and the second lower hanger rail are integrally formed by aluminum extrusion molding.

3. 2. The integrated electronic whiteboard system according to claim 1, further comprising a first cable rail disposed above and extending parallel to the second upper hanger rail.

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.

5. 2. The integrated electronic whiteboard system of claim 1, further comprising a second cable rail disposed above and parallel to the first lower hanger rail.

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, further comprising a curtain rail disposed along an underside of the first upper hanger rail, and a curtain for covering the existing whiteboard is hung from the curtain rail.

8. The integrated electronic whiteboard system according to claim 7 , wherein the curtain is provided with an automatic opening and closing mechanism.

9. 2. The integrated electronic whiteboard system of claim 1, wherein said projection support means is a lightweight whiteboard.

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

11. 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. A composite electronic whiteboard system as described in claim 1, wherein the pair of horizontal rollers are slightly movable horizontally on the support block.

13. 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 is paired with the first upper hanger rail is arranged along the lower side of the existing blackboard, and a first sliding frame for mounting the electronic blackboard is suspended 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 disposed along the lower side of the first upper hanger rail, and a curtain covering the existing blackboard is hung from the curtain rail, The first slide frame is provided at its upper and lower ends with runners that engage with the first upper hanger rail or the first lower hanger rail and move, The first upper hanger rail and the first lower hanger rail are provided on one side or bottom with a slit extending in the length direction to allow movement of a runner support plate extending from an end of the first slide frame, 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 in opposite directions offset from each other relative to the longitudinal axis of each hanger rail.

14. A composite electronic whiteboard system as described in Claim 13, wherein the pair of horizontal rollers are slightly movable horizontally on the support block.

15. 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 is paired 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, A roll screen case is installed on one side or the upper side of the existing blackboard, and the roll screen to be stored therein is installed so as to be able to be pulled out in the horizontal or downward direction, and a projector is arranged above the existing blackboard, The first slide frame is provided at its upper and lower ends with runners that engage with the first upper hanger rail or the first lower hanger rail and move, The first upper hanger rail and the first lower hanger rail are provided on one side or bottom with a slit extending in the length direction to allow movement of a runner support plate extending from an end of the first slide frame, 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 in opposite directions offset from each other relative to the longitudinal axis of each hanger rail.

16. A composite electronic whiteboard system as described in Claim 15, wherein the pair of horizontal rollers are slightly movable horizontally on the support block.

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