JP3077984U - Electronic bulletin board - Google Patents

Abstract

(57) [Summary] [Purpose] By drawing and displaying on a heat-sensitive sheet and enabling appropriate writing and erasing on a transparent plate superimposed on the display surface, it functions as a display board for a bulletin board and a presentation. A transparent plate having a writable and erasable surface.
And a long strip-shaped reversible thermosensitive material, which is wound by a winding roll 51 disposed on the end side of the transparent plate, and is arranged so as to be movable close to and along the entire rear surface side of the transparent plate by winding and rewinding. An electronic bulletin board comprising a heat-sensitive sheet 4 provided, a heat-sensitive operation means 7 for printing and erasing by heating operation on the heat-sensitive sheet, and a control unit 8 to which an information processing device for processing a control program of the heat-sensitive operation means is connected. I do. In addition, the winding roll is detachably mounted via the mounting opening 13,
The heat-sensitive sheet is appropriately divided into sections, and remote control is performed from a distant place by a control program that enables printing and erasing for each section.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a whiteboard-type electronic bulletin board using a heat-sensitive sheet made of a heat-sensitive material having a property (reversibility) of coloring or decoloring due to a difference in heating conditions, and particularly to a heat-sensitive sheet drawn and displayed. BACKGROUND OF THE INVENTION The present invention relates to an electronic bulletin board that can be efficiently displayed on a bulletin board or a presentation by being covered with a transparent plate and being drawn by hand on the surface so as to be overlapped and displayed.

[0002]

[Prior art and its problems]

 Conventionally, blackboards and so-called whiteboards (hereinafter referred to as “whiteboards”), which have been used as writing display boards for explanations, draw the necessary characters and drawings with writing implements by handwriting each time. In addition, when unnecessary, the work of erasing with a special eraser is performed. However, such display contents may be used repeatedly, may be displayed with slight changes, or may be added or changed sequentially as the description proceeds without changing the appearance of the display. In some cases, it was only necessary to show them.

In such a case, redrawing each time is a troublesome and troublesome work, and in the course of the presentation, it takes time unnecessarily, which sometimes hinders the progress of lectures and explanations. For this reason, many types of large-sized paper with complicated tables and pictorial drawings were prepared in advance, and they were sometimes attached and replaced. However, this method is only for display or posting of pre-defined contents, and cannot be added or corrected as appropriate during the course of the course of lecture or explanation of the contents, so it is still insufficient for accurate and easy-to-understand explanations Display means.

In recent years, display devices using a large-sized liquid crystal display or a projector have appeared and become popular. Although this is a functional and very convenient device, it is merely a display means, and the same inadequacy as described above remains.In addition, in order to make it easy to see, the surroundings are darkened and various projection settings are made. In addition to the lack of convenience, the equipment cost was high.

[0005]

【Purpose】

 Therefore, the present invention has been made in view of the above-mentioned problem, and it is possible to draw and display display information on a heat-sensitive sheet by a heat-sensitive operation means, and to appropriately write and erase information on a transparent plate superimposed on the display surface. By doing so, it is intended to provide a new electronic bulletin board intended to function variously and effectively as a bulletin board and a display board of a presentation.

[0006]

[Means for Solving the Problems]

 In order to solve the above problems, the electronic bulletin board according to the present invention is configured as follows. That is, a transparent plate made of a transparent material having a writable and erasable surface and supported with a predetermined area, and a reversible thermosensitive material disposed so as to be movable close to and along the entire rear surface of the transparent plate. A heat-sensitive sheet comprising: heat-sensitive operation means for printing and erasing a character image by a heating operation on the heat-sensitive sheet; and a connection portion to which an information processing device for processing a control program of the heat-sensitive operation means is connected. It is characterized by:

[0007] The operation of this configuration is such that predetermined drawing information from an information processing apparatus (for example, a personal computer or a personal digital assistant) is input to the control unit, and a thermal operation means (for example, a thermal head) is input by this input signal. ) Reacts to draw the desired characters, symbols, and pictures (“characters, etc.”) on the thermal sheet. The written heat-sensitive sheet moves in accordance with the drawing operation and is arranged close to the back side of the transparent plate, and the written characters and the like pass through the transparent plate and are recognized by the viewer. Then, in this state, using a writing instrument (for example, a marker pen for a white board), a desired character or the like is written by hand on the surface of the transparent plate at a corresponding target drawing position, and is additionally written or erased as appropriate. Make the necessary entries. When the entire display content becomes unnecessary, the drawing on the transparent plate is manually erased by a dedicated eraser, but the drawing on the thermal sheet is moved and erased by the thermal operation means.

The heat-sensitive sheet is formed in a long strip shape, wound and held by a winding means arranged on the end side of the transparent plate, and is appropriately wound and unwound. The sheet will be moved to display multiple scenes on the transparent plate, and the drawing frequency of the thermal sheet as a whole will be increased to increase durability. In addition, when the winding means is mounted on the electronic bulletin board, the heat sensitive sheet can be easily exchanged by being detachably mounted through the mounting hole provided in the electronic bulletin board. Furthermore, if the heat-sensitive sheet is formed in an endless belt shape, there is no need to perform winding and rewinding inversion operations, and only one-way movement is required.

If the printing means for printing on the heat-sensitive sheet and the erasing means for erasing the printed display are formed separately from each other, the heat-sensitive operating means can be arranged at both ends and / or one end of the transparent plate. For example, the degree of freedom in the arrangement can be increased.

Further, in the heat-sensitive operation on the heat-sensitive sheet, if the heat-sensitive sheet is divided into appropriate sections and controlled by a control program that enables printing and erasing for each section, the expression form of the heat-sensitive sheet is changed. A variety of presentations can be made with rich expressions. In addition, by performing the control by the control program by remote control, it becomes possible to perform the operation of printing / erasing the electronic bulletin board from a remote place.

[0011]

[Embodiment of the invention]

 Next, specific embodiments of the electronic bulletin board according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic view showing the electronic bulletin board of the present embodiment, FIG. 2 is a schematic plan view showing the electronic bulletin board of the present embodiment, FIG. 3 is a schematic perspective view showing the electronic bulletin board of the present embodiment, FIG. 4 is a block diagram of the electronic bulletin board of the present embodiment.

The casing 1 of the electronic bulletin board A according to the present embodiment has a substantially rectangular box shape, and is supported by a leg stand 2 having a predetermined height provided with a moving means such as a caster 21 in an upright manner. The surface that has the area is the elevation. The front surface 11 side of the housing 1 is almost entirely open, and this opening is covered with a transparent plate 3 serving as a display unit. The transparent plate 3 is made of a transparent plate glass and has a writing surface of about 1.3 m (width) × 0.9 m (length). In addition to this glass plate, a transparent plate of another material (for example, an acrylic plate) may be used in consideration of compatibility with the writing instrument. The left surface 12 of the housing 1 has a structure that can be opened and closed so that a later-described winding roll 51 can be attached and detached (not shown).

A heat-sensitive sheet 4 is provided on the entire rear surface side of the transparent plate 3 so as to approach the rear surface 31. The heat-sensitive sheet 4 is a reversible heat-sensitive printing material using the thermolight technology. In the present embodiment, a heat-sensitive sheet having a white ground color is drawn in blue, and the drawing is erased by reheating. The product uses “Thermo Relight Sheet” (trade name, manufactured by Mitsubishi Paper Mills), but the heat-sensitive sheet that can be used is not limited to this. The heat-sensitive sheet 4 has a long strip shape, and is provided so as to be movable close to the rear surface of the transparent plate 3 by the conveying means 5.

The transport unit 5 includes a winding roll 51, a transport roller 52, a tension roller 53, a guide groove 54, and a guide plate 55. The winding roll 51 is removably fitted to a left-opening mounting port 13 disposed above and below a left end (toward the transparent plate 3) on the back surface side (toward the transparent plate 3) inside the housing 1, and is a rotatably supported vertical shaft. It is a rod, driven by a motor with a brake (not shown), and winds a heat-sensitive sheet 4 corresponding to about two surfaces of the transparent plate 3. A transport roller 52 composed of a pair of long round rods having a driving force is supported between the upper and lower portions of the inside of the housing 1 on the front side of the winding roll 51. It plays the role of guiding the heat-sensitive sheet 4 rolled out from the rear side of the transparent plate 3.

Further, a long round rod-shaped tension roller 53 having a driving force is axially supported between the upper and lower right ends in the housing 1 at a position facing the transport roller 52 with the transparent plate 3 interposed therebetween. The pinch roller 53a is in the form of a long round bar in contact with the tension roller 53. By sandwiching the tension roller 53 and the pinch roller 53a, the heat-sensitive sheet 4 reaching the right end (toward the transparent plate 3) on the back side of the transparent plate 3 is pulled and urged to remove slack. I have.

In addition, guide grooves 54 are provided at the upper and lower ends of the transparent plate 3 in the housing 1 so as to correspond vertically. The guide groove 54 is divided into a forward groove 54a close to the transparent plate 3 and a backward groove 54b behind it, and is formed continuously so that the heat-sensitive sheet 4 can be folded back (U-turned). I have. Further, a plurality of guide plates 55 are disposed at appropriate intervals on substantially the same plane as the forward groove 54a at an intermediate portion between the upper and lower outward grooves 54a.

In addition, photo sensors 6 are provided near the lower ends of both ends of the transparent plate 3 and near the lower end of the return groove 54 b of the guide groove 54, respectively. Thus, the start position of the first surface of the heat-sensitive sheet 4 is detected near the left end of the transparent plate 3, the end position of the first surface is detected near the right end of the transparent plate 3, and the end position of the second surface of the housing 1 is detected. It is detected near the left end on the back side and transmitted as a detection signal to a control unit 8 described later.

With this configuration, the conveying unit 5 drives the winding roll 51, the conveying roller 52, and the tension roller 53 in cooperation with each other, pulls out the heat-sensitive sheet 4 from the winding roll 51, and is guided by the guide groove 54. Then, it is moved close to the back surface 31 of the transparent plate 3. Then, the heat-sensitive sheet 4 that has moved is guided by the return path groove 54b, and is returned and transferred to the transport roller 52 side. In consideration of sliding scratches, it is preferable that the heat-sensitive sheet 4 keeps a small gap (close state) without contacting the back surface of the transparent plate 3.

The transport roller 52 is provided with a thermal head 7 as a thermal operation means. The thermal head 7 functions as a printing means for thermally reacting a target portion of the heat-sensitive sheet 4 and also as an erasing means for erasing a display portion by reheating the colored heat-sensitive sheet 4. , And is controlled by a control unit 8 described later.

Next, the control unit 8 is a control circuit including a CPU 81 and an internal memory 82 for storing print data. The control unit 8 is a computer terminal (hereinafter, referred to as “information processing device”) connected via a connection unit 83. PC ”), the transport roller 52 and the tension roller 53 are driven to send and rewind the heat-sensitive sheet 4 based on a specific instruction regarding printing and erasing from the heat-sensitive sheet 4, and the heat-sensitive sheet is detected by the photosensor 6. The position of the leading end of the print head 4 is checked, and printing and erasing are controlled by the thermal head 7.

The connection unit 83 to the outside of the control unit 8 is an interface unit (I / F unit), such as a USB (Universal Serial Bus), a 100 / 10Base-T standard LAN (Local Area Network), It is a connection port of IEEE1284 (parallel connection standard by Institute of Electrical and Electronic Engineers). A connection setting unit 84 is provided below the front surface of the housing 1, and a panel switch 84a for performing various connection settings such as a PC and a LAN in the control unit 8, and a panel switch 84a for confirming the settings. And a liquid crystal display section 84b. The power supply unit 85 is for externally supplying power required for all operations of the electronic bulletin board A.

[0022]

[Operation of this embodiment]

 Hereinafter, the operation of the electronic bulletin board A of the present embodiment will be described in detail. FIG. 5 is an explanatory diagram showing a print setting screen of the electronic bulletin board of the present embodiment, and FIG. 6 is an explanatory diagram showing a print result of the electronic bulletin board of the present embodiment.

First, an electronic bulletin board A is connected to a PC or LAN as an initial setting, a printer driver as a control program is installed in the PC, and in the case of a LAN connection, an IP address is set by a connection setting unit 84. deep. Here, an example will be described in which print data of 18 pages in A4 size is printed on the electronic bulletin board A as thumbnails (printed in tiles), but the present invention should not be interpreted in a limited manner.

1. After starting the application software that created the print data prepared on the PC side, start the printer driver and enter the print setting screen. 2. On the print setting screen, print settings, paper selection, and graphic settings are performed. In the print setting, as shown in FIG. 5, sheet selection, device status, sheet information, erase position designation, and print position designation are performed. In the sheet selection, whether to print on the first side or the second side is set. In the present embodiment, “sheet 1” is selected and printing is performed on the first side. In the device status, since the connection status between the PC and the electronic bulletin board is displayed, confirm that the status is "online" indicating that printing is possible. If "Offline" is displayed, reset the bulletin board side.

In the sheet information, a page orientation, a page printing order, and the number of pages are set. For page orientation, select either the portrait or landscape printing direction. In the page printing order, select “Landscape” to print the second and subsequent pages on the right side with the upper left corner of the electronic bulletin board A as the first page, and select “Landscape” for the lower side. Select “Down”. In the number of pages, the number of divisions of the entire transparent plate 3 of the electronic bulletin board A to be displayed is selected. For example, when "2" is selected, the left and right are divided into two as shown in FIG. 6 (a), and two pages are enlarged and displayed. When "18" is selected, FIG. 6 (b) As shown in the figure, 18 pages are divided into 3 rows and 6 columns, and 18 pages are displayed in the same size. When specifying the erasure position, the user selects and specifies the page position to be erased from the printed pages. In the print position specification, a page position to be printed is selected and specified.

In the paper selection, since the paper size and the printing direction are set, “A4” size and “portrait” direction are selected (not shown). In the graphic setting, resolution and dithering “coarse” / “fine” are set, so here “200” dpi and “coarse” are selected (not shown). 3. The above 2. When a print instruction is issued from the PC in accordance with the setting described above, if the print data is transmitted to the control unit 8 via the connection unit 83, the print data is stored in the internal memory.

When all the print data is received, the printing operation is started. First, the position of the thermal sheet 4 is confirmed by the photo sensor 6. If the position is not correct, carry forward (moving from left to right on the drawing) or rewind to the correct position. The transport of the heat-sensitive sheet 4 is performed by driving the transport roller 52 and the tension roller 53. The transport roller 52 mainly transports the thermal sheet 4, and the tension roller 53 applies a weak force to the extent that the thermal sheet 4 is not loosened.

When the photosensor 6 detects that the heat-sensitive sheet 4 has been conveyed in the forward direction and has reached the printing start position, the CPU 81 transmits a printing instruction to the thermal head 7 to start heating printing. When transmission of all the print data to the thermal head 7 is completed, the photo sensor 6 monitors until the sheet is conveyed by one sheet, detects that the heat-sensitive sheet 4 has been conveyed to a correct position, and detects the conveyance roller 52 and the tension roller 53. Stop.

Next, the erasing operation is basically the same as the printing operation on the PC side, and the printing operation may be performed by specifying the erasing position on the print setting screen at the time of printing. The erasing operation on the electronic bulletin board A side is basically the same as the printing operation, except that the printing data to be transmitted to the thermal head 7 is heated for erasing as solid black data. That is, in normal printing, the color portion is "1" and the white portion is "0", but the erase data is all "1" and the timing of the current flowing through the thermal head 7 is set for erasure. Erasing is performed by the thermal head 7.

[0030]

[Possibility of other embodiments]

 The electronic bulletin board A of the present embodiment can be of a wall-mounted type by removing the footrest 2. Further, in the electronic bulletin board A of the present embodiment, when the display is performed on the second surface by using the heat-sensitive sheets 4 for two display surfaces, the first surface is U-turned inside the housing 1 and stored. However, as shown in FIG. 7 (a), a winding roll 91 is disposed on the opposite side of the winding roll 51, and the heat-sensitive sheet 92 is wound up, so that a heat-sensitive sheet of three or more display surfaces can be obtained. An electronic bulletin board B using a sheet may be used. Further, as shown in FIG. 7B, an electronic bulletin board C having a configuration in which two transport rollers 93 and 93 are disposed on both sides inside the housing 1 and an annular heat-sensitive sheet 94 is hung thereon may be used.

In addition, in the electronic bulletin board A of this embodiment, both printing and erasing are performed by a single thermal head 7, but a thermal head is used for printing, and a thermal head or the like is used for erasing. The heating means may be separately arranged.

[0032]

【effect】

 As described above, according to the present invention, in a manufacturing factory, public facility, school, or the like having a large area, it is necessary to display the same content on a plurality of bulletin boards by hand, or print the same content on paper and paste it on the bulletin board. And content can be easily updated by remote control.

Also, since the electronic bulletin board is configured to overlap the handwritten drawing with inks and the display screen capable of performing thermal printing drawing, the basic image to be drawn on the display screen, for example, a ruled line of a table or a graph. The other images can be drawn by the heating printing means, which saves the trouble of drawing and allows the user to concentrate on oral explanations such as lectures and commentary.

Furthermore, unlike large-sized liquid crystal displays and projectors, there is an advantage that the introduction cost can be kept low and no electric power is required for maintaining the display state.

[Brief description of the drawings]

FIG. 1 is a schematic view showing an electronic bulletin board according to an embodiment.

FIG. 2 is a schematic plan view showing the electronic bulletin board of the embodiment.

FIG. 3 is a schematic perspective view showing an electronic bulletin board according to the embodiment.

FIG. 4 is a block diagram of an electronic bulletin board according to the embodiment.

FIG. 5 is an explanatory diagram showing a print setting screen of the electronic bulletin board according to the embodiment.

FIG. 6 is an explanatory diagram illustrating a print result of the electronic bulletin board according to the embodiment.

FIG. 7 is a schematic plan view showing an electronic bulletin board according to another embodiment.

[Explanation of symbols]

 A electronic bulletin board 1 housing 11 front surface 12 left surface 13 mounting opening 2 footrest 21 caster 3 transparent plate 31 back surface 4 heat-sensitive sheet 5 transfer means 51 winding roll 52 transfer roller 53 tension roller 53a pinch roller 54 guide groove 54a outward groove 54b return path Groove 55 Guide plate 6 Photosensor 7 Thermal head (thermal operation means) 8 Control unit 81 CPU 82 Internal memory 83 Connection unit 84 Connection setting unit 84a Panel switch 84b Liquid crystal display unit 85 Power supply unit B Electronic bulletin board (other embodiments) 91 Take-up roll 92 Thermal sheet C Electronic bulletin board (other embodiment) 93 Transport roller 94 Thermal sheet

Claims (7)

[Utility model registration claims] 1. A transparent plate (3) having a writable and erasable surface and supported with a predetermined area, and a reversible sensor disposed so as to be movable close to and along the entire rear surface of the transparent plate (3). A heat-sensitive sheet (4) made of a heat material, a heat-sensitive operation means (7) for printing and erasing a character image by a heating operation on the heat-sensitive sheet (4), and a control program for the heat-sensitive operation means (7) are processed. An electronic bulletin board, comprising: a control unit (8) to which an information processing device is connected. 2. A long strip-shaped heat-sensitive sheet (4) is wound and held by a winding roll (51) disposed on an end side of a transparent plate (3), and is appropriately wound and unwound. 2. The electronic bulletin board according to claim 1, wherein: 3. The electronic bulletin board according to claim 2, wherein the winding roll is detachably mounted through a mounting port provided in the electronic bulletin board. 4. The electronic bulletin board according to claim 1, wherein the heat-sensitive sheet (94) has an endless band shape. 5. A printing apparatus for printing on a heat-sensitive sheet (4) and an erasing means for erasing the printed display are separately formed in the structure of the heat-sensitive operating means (7). 5. The electronic bulletin board according to claim 1, wherein the electronic bulletin board is disposed on one end side. 6. In a heat-sensitive operation on the heat-sensitive sheet (4, 94), the heat-sensitive sheet (4) is divided into appropriate sections and controlled by a control program that enables printing and erasing for each section. The electronic bulletin board according to claim 1, 2, 3, 4, or 5, wherein 7. The electronic bulletin board according to claim 6, wherein the control by the control program is performed by remote control from a remote place.