JP2000001089A - Writing board device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To clearly erase written contents by hand. SOLUTION: A writing board device is provided with a sheet type recording medium A, for writing by a writing equipment employing ink erasable by a cleaner liquid such as water or the like, a writing content reading means B, scanning the surface of the recording medium A to read the writing content, a printing means C such as a heat transfer printer, an ink jet printer or the like for recording the writing content read by the writing content reading means B, a copy information reading means D, scanning the surface of a read copy to read a copy information, an automatic writing means E such as the ink jet printer, a plotter or the like for writing the copy information, read by the reading means D, on the recording means A employing the ink erasable by the cleaning liquid such as water or the like, an automatic erasing means F, erasing the writing content on the recording medium A by adhering the cleaner liquid on the surface of the recording medium A while scanning the same, and a dry-type manual erasing means F, rubbing the surface of the recording medium A by hand to erase the writing content on the surface of the same.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic blackboard device used for a conference or the like, in which a writing instrument such as a marker pen is used to write on the surface of a sheet-shaped recording medium, and a presentation device used for giving a presentation. Regarding the writing board device, the writing surface is black, white,
Applies to various lighting boards such as green.

[0002]

2. Description of the Related Art Conventionally, for example, some electronic blackboard devices include:
A sheet-shaped recording medium on which arbitrary writing is performed by a writing instrument, writing content reading means for scanning the recording medium and reading the writing content on the surface, and writing content read by the writing content reading means on recording paper. There is a printer having printing means for recording.

[0003] Some electronic blackboard devices use ink erasable with a cleaner solution as ink for a writing instrument as described in, for example, Japanese Patent Application Laid-Open No. 3-284040, and separately scan an original. Document information reading means for reading the document information by reading the document information, and automatic writing means for automatically writing the document information read by the document information reading means on a recording medium by using a writing implement using ink erasable with a cleaner solution. There is.

[0004] Writing on the recording medium by hand using a writing instrument, or reading original information by original information reading means and writing by automatic writing means. Further, the writing contents reading means scans the recording medium to read the writing contents, and the printing means records it on recording paper.

On the other hand, when erasing all the written contents, the surface of the recording medium is wiped with a wiping tool impregnated with a cleaner such as water, and the cleaner is attached to the surface, and the written characters and the like are subjected to a chemical reaction. Was erased.

[0006]

However, in such a conventional writing board apparatus, the cleaner liquid is adhered to the surface of the recording medium by wiping with a wiper impregnated with a cleaner liquid such as water, and written characters or the like are written. Is erased by a chemical reaction, so that even if it looks clean immediately after wiping, there is a problem that, due to the degree of dirt of the wiping tool or insufficient wiping, the background of the recording medium after drying is conspicuously soiled.

An object of the present invention is to provide a writing board apparatus for writing on the surface of a recording medium with a writing instrument using ink which can be erased with a cleaner liquid so that the written contents can be erased by hand. It is in.

[0008]

SUMMARY OF THE INVENTION Therefore, an invention according to claim 1 is an apparatus for writing on a sheet-like recording medium with a writing instrument using ink erasable with a cleaner liquid, such as an electronic blackboard device or a presentation device. The writing board device is characterized in that the writing board device is provided with dry manual erasing means for rubbing the recording medium by hand and erasing the written contents on the surface.

According to the first aspect of the present invention,
At the time of use, arbitrary writing is performed on a recording medium with a writing instrument using ink erasable with a cleaner solution. When manually erasing the written contents on the recording medium, the dry-type manual erasing means is gripped by hand and rubbed on the recording medium to erase the written contents on the surface.

According to a second aspect of the present invention, in the writing board device according to the first aspect, upon receiving a write signal, writing is automatically performed on a recording medium by a writing implement using ink erasable with a cleaner solution. And automatic writing means such as an ink jet printer / plotter.

[0011] In the invention according to claim 2,
Receiving the write signal, the writing device automatically writes the data on the recording medium by the automatic writing means using the ink erasable with the cleaner liquid.

According to a third aspect of the present invention, in the writing board device according to the first or second aspect, the cleaner liquid adheres to the surface while scanning the recording medium together with the manual erasing means so that the cleaning liquid adheres to the surface of the recording medium. Characterized in that it comprises an automatic erasing means for automatically erasing the written contents of (1).

In the invention according to claim 3,
When erasing all the written contents on the recording medium at once, the cleaner is adhered to the surface of the recording medium while the relative movement is performed and the automatic erasing means scans over the recording medium to erase the written contents.

According to a fourth aspect of the present invention, in the writing board apparatus of the third aspect, the automatic erasing means includes:
A cleaner device for cleaning and squeezing with a cleaner solution to erase written contents on a recording medium, a storage container for storing the cleaner solution, and a pump for circulating the cleaner solution between the storage container and the cleaner device when activated; And an erase switch for operating the pump and scanning the recording medium with the cleaner.

In the invention according to claim 4,
When erasing all the written contents on the recording medium at once, operate the erase switch of the automatic erasing means, operate the pump to circulate the cleaner liquid between the storage container and the cleaner, and move the cleaner relatively. Then, the surface of the recording medium is cleaned and squeezed with a cleaning liquid by scanning the recording medium with a cleaner.

The invention according to claim 5 is the invention according to claims 1, 2,
3. The writing board apparatus according to 3 or 4, further comprising a liquid contamination detecting unit that detects a concentration of the cleaner liquid and transmits a cleaner liquid exchange signal.

Further, in the invention according to claim 5,
The concentration of the cleaner liquid is detected by the liquid contamination detecting means, and when the detected concentration is equal to or higher than a predetermined value, a cleaner liquid exchange signal for prompting the replacement of the cleaner liquid is transmitted.

[0018] The invention according to claim 6 is the invention according to claims 1, 2,
3. The writing board device according to 3, 4, or 5, wherein the ink for writing on the recording medium can be erased with water, and water is used as a cleaner liquid.
It is characterized by the following.

In the invention according to claim 6,
Water used as a cleaner liquid adheres to the surface of the recording medium by the automatic erasing means, and erases the written contents on the recording medium.

[0020] The invention described in claim 7 is the first or second invention.
3. The writing board device according to 3, 4, 5, or 6, wherein a writing content reading means for scanning the recording medium to read the writing content, and recording the writing content read by the writing content reading means on a recording sheet. And printing means such as a thermal transfer printer and an ink jet printer.

According to the seventh aspect of the present invention,
If necessary, the writing contents are scanned relative to the recording medium by the relative movement, and the written contents are read, and are recorded on the recording paper by the printing means.

[0022] The invention described in claim 8 is the first or second invention.
3. The writing board device according to 3, 4, 5, 6, or 7, further comprising communication means for transmitting and receiving to and from an external device.

In the invention according to claim 8,
Using the communication means, for example, the writing contents read by the writing contents reading means are transmitted to a remote place, and the transmission information from the remote places is received and inputted to the printing means or the automatic writing means.

[0024]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an example of a case where the present invention is applied to an electronic blackboard device.

The illustrated electronic blackboard device is provided, for example, by extending an endless device between a driving roller and a driven roller.
A sheet-shaped recording medium A that is written with a writing instrument using a water-soluble or semi-water-soluble ink that can be erased with a cleaner such as water, and the written content on the surface is scanned by scanning the recording medium A. Writing contents reading means B to be read, printing means C such as a thermal transfer printer or an ink jet printer for recording the writing contents read by the writing contents reading means B on recording paper, and original information for scanning the original to read the original information Reading means D; automatic writing means E such as an ink jet printer / plotter for writing the document information read by the document information reading means D onto the recording medium A using ink erasable with a cleaner; And an automatic erasing means F for automatically erasing written contents on the recording medium A by adhering a cleaner liquid to the surface thereof while scanning Communication means G performing the dry manual erasing means f drown the contents written on the surface by rubbing on recording medium A, the external device receiving such another electronic blackboard apparatus
And a personal computer PC for controlling the whole.

Then, at the time of use, arbitrary writing is performed on the recording medium A by hand with a writing implement using ink erasable with a cleaner solution. Alternatively, the original information is scanned by the original information reading means D to read the original information on the surface of the original, and the writing is performed on the recording medium A by the automatic writing means E using ink erasable with a cleaner solution.

The written contents on the recording medium A are moved relative to each other as necessary, and the written contents are read by scanning the recording medium A by the written contents reading means B, and are recorded on the recording paper by the printing means C.

When the written contents on the recording medium A are to be manually erased, the dry manual erasing means f is held by hand and the recording medium A is rubbed to erase the written contents on the surface. When all the written contents on the recording medium A are to be erased collectively, the cleaner is attached to the surface of the recording medium A while moving relative to the automatic erasing means F to erase the written contents.

Further, using the communication means G, for example, the writing contents read by the writing content reading means B are transmitted to a remote place, and the transmission information from the remote place is received and transmitted to the printing means C and the automatic writing means E. input.

FIG. 2 shows the electronic blackboard device as an embodiment. As shown in FIG. 2, the electronic blackboard device 10 is provided, for example, by hanging it on a wall of a conference room.

The frame case 11 of the electronic blackboard device 10
Has a flat rectangular shape, and is provided standing upright, with a large window hole 11a at the front. And the window hole 11
From a, a flat part of the recording medium A faces.
In the illustrated example, an endless writing sheet 12 is used as the recording medium A, and is stretched in the frame case 11 as described later.

An elongated tray 13 is attached to the front of the frame case 11 along the lower edge, and a writing implement 14 and a wiping implement 15 are placed on the tray 13.

The writing instrument 14 uses water-soluble or semi-water-soluble ink which can be erased with water in the illustrated example, for example, as described in JP-A-7-207212 and JP-A-9-143417. This is used when writing characters and pictures on the writing sheet 12.

On the other hand, the wiping tool 15 is shown as an example of the manual erasing means f, and is a dry type made of soft paper, cloth, flocking, or the like, which is generally used in a white board or the like. Used to wipe the writing sheet 12 to erase the written contents on the surface.

Below the frame case 11, a thermal transfer printer 17 having a recording paper receiver 16 in front is attached as a printing means C, and two storage cases 18 and 19 are arranged side by side.

On the other hand, a switch group 20 is provided on one side edge of the frame case 11. The switch group 20 includes a transport switch for transporting the writing sheet 12 described above, a print switch for reading and writing out the written content on the writing sheet 12, and an erasing switch 20a for erasing the written content. Prepare.

In the frame case 11, a driving roller 22 and a driven roller 23 are provided on the left and right sides in parallel with each other as shown in FIG. The above-described writing sheet 12 is stretched between the rollers 22 and 23, and the driven roller 23 is urged by a spring (not shown) to stretch between the rollers 22 and 23.

Then, the transport switch of the switch group 20 is operated to transmit rotation from a drive source (not shown) to rotate the drive roller 22 and to rotate the driven roller 23.
And the writing sheet 12 is conveyed in the horizontal direction in the figure. Reference numeral 24 in the drawing denotes a back plate provided on the back side of the writing sheet 12 and backing a portion facing the window hole 11a.

Further, as shown in FIG.
In FIG. 1, a scanner 25 is provided on one side as writing content reading means B. Although not shown in detail, the scanner 25 is already widely used in a copying machine, an electronic blackboard device of this type, and the like, and reads the written content on the writing sheet 12 while the writing sheet 12 is being conveyed. . Then, the signal from the scanner 25 is input to the thermal transfer printer 17 via the personal computer PC, the read content is reduced and recorded on the recording paper provided in the printer 17, and printed out on the recording paper receiver 16 described above. .

The personal computer PC is connected to document reading means D for scanning the set document to be read and reading document information on the surface of the document. Further, an automatic writing unit E for writing the document information read by the document reading unit D on the writing sheet 12 is connected. In the illustrated example, an ink jet printer or plotter using a water-soluble or semi-water-soluble ink is used as the automatic writing means E, similarly to the ink of the writing implement.

In the present invention, the writing sheet 1
An automatic erasing means F is provided for automatically erasing the written contents on the writing sheet 12 by adhering a cleaner liquid to the surface while scanning over the surface. The automatic erasing means F includes, together with the erasing switch 20a described above, a cleaner 2 described below.
6, a storage container 32, a pump 34 and the like.

The cleaner device 26 is for applying a cleaner solution to the surface of the writing sheet 12 and cleaning and squeezing it with the cleaner solution, as will be described in detail later. For example, the cleaner device 26 is formed in a prismatic shape as shown in FIG. Writing sheet 1
2 has a pressing surface 26a for pressing against the stretched portion on the back side from the outside, and a vertically long opening 26b is opened in the pressing surface 26a, and as shown in the cross-sectional view shown in FIG. A concave groove 26c is provided. Then, linear brushes 27 are provided in two rows in the concave groove 26c, and their tips are made substantially equal to the pressing surface 26a.

In the example described above, the brush 2 is placed in the concave groove 26c.
7 are provided in two vertical rows, for example, as shown in FIG. 5, instead of the brush 27, a partition plate 28 may be provided in two vertical rows, and as shown in FIG. 6, a roller 29 is rotatably provided. It may be configured. Also in this case, it is preferable that the outer surface of the roller 29 is made substantially equal to the pressing surface 26a as shown in the figure.

As shown in FIG. 3, this type of cleaner 26 is provided with an inlet 26d which communicates with the inside of the concave groove 26c, and a tube 30 is connected to the inlet 26d. A pipe is connected to a storage container 32 via 31. In the lower part, a discharge port 26e which also communicates with the concave groove 26c is provided.
is connected, and a pipe is connected to the storage container 32 from the pump 34 on the way through the tube 33b.

As shown in FIG. 7, for example, the storage container 32 stores a cleaner liquid 37 made of water in the illustrated example in a bottle-shaped container 36 and attaches a cap 38 to an opening 36a of the container 36. . Container 3 from cap 38
6, a filter for filtration 39 is suspended in
8 is provided through a discharge pipe 40 and an introduction pipe 41.
The above-described tube 30 is attached to the discharge pipe 40, and the above-described tube 33b is attached to the introduction pipe 41.
Extends through the filtration filter 39 to the bottom of the container 36, while the introduction tube 41 extends to the mouth 36a.

Further, as shown in FIG.
Extends the overflow port 36b downward from below the shoulder of the container 36, and fits one end of the overflow pipe 61 to the end thereof. As shown in FIG. 3, the other end of the overflow pipe 61 is inserted through the opening 60 a of the cleaner liquid tank 60. The cleaner liquid tank 60 is a container made of resin or the like, and stores the cleaner liquid 37 in a much larger amount than the storage container 32. In the mouth 60a of the cleaner liquid tank 60,
Separately, one end of the bypass pipe 62 is inserted. The bypass pipe 62 is connected to the tube 33a described above before the pump 34.
Connect to

Thus, as shown in FIG. 3, the gas enters the tube 30 from the storage container 32 through the discharge pipe 40, passes through the solenoid valve 31 on the way, and enters the inlet 26 of the cleaner 26.
d, reaches the outlet 26e through the concave groove 26c of the cleaner 26, passes through the pump 34 on the way through another tube 33a, and returns to the original storage container 32 from the tube 33b through the introduction pipe 41. First circulation path J returning to
(A circulation path indicated by a solid arrow in FIG. 3). And
By operating the pump 34, the cleaner liquid 37 is circulated through the first circulation path J while being filtered by the filtration filter 39.

Separately, the cleaner liquid tank 6
The pump 34 enters the pump 34 through the bypass pipe 62 and the tube 33a, and is introduced into the storage container 32 from the tube 33b through the introduction pipe 41. The cleaner liquid 37 is supplied thereto, and the cleaner liquid overflowed in the storage container 32 is supplied to the overflow pipe. A second circulation path K (a circulation path indicated by a dotted arrow in FIG. 3) is formed to return the cleaner liquid tank 60 to the original state again through 61.

In the illustrated example, the storage container 3 shown in FIG.
2 is stored in the storage case 18 shown in FIG. 2, and the pump 34 shown in FIG. 3 is stored in the storage case 19 shown in FIG. Although not shown in FIG. 2, the cleaner liquid tank 60 shown in FIG. 3 is stored in a storage case provided below the electronic blackboard device 10.

The electromagnetic valve 31 for shutting off the cleaner liquid 37 entering the cleaner 26 is not limited to the electromagnetic valve as shown in the figure, but may be of a mechanical type that operates with a cam or the like to shut off the cleaner liquid. You may. Further, the filtration filter 39 provided in the middle of the circulation path of the cleaner liquid is not limited to the inside of the storage container 32 as shown in the illustrated example, but may be provided in another part of the circulation path. By providing the filter for filtration 39 in the middle of the circulation path as described above, the cleaner 37 is
The impurities mixed therein are removed.

The present invention is configured, for example, as described above. And at the time of use, like a normal electronic blackboard device,
While holding the writing implement 14 on the tray 13 in the hand and erasing it with the wiping implement 15 as needed, the characters and pictures are written on the surface of the writing sheet 12. When the writing sheet 12 exposed from the window hole 11a alone becomes insufficient in space,
By pressing a transport switch in the switch group 20, the writing sheet 12 is transported, and an unused margin portion is appropriately fed out to face the window hole 11a, and writing is performed there.

When printing out the written contents,
By pressing a print switch in the switch group 20, the writing sheet 12 is conveyed, the written content on the writing sheet 12 is read by the scanner 25, and the read content is recorded on the recording paper by the thermal transfer type printer 17, and is recorded on the recording paper receiver 16. Print out to

To erase all the written contents on the writing sheet 12 at one time, the erasing switch 20a in the switch group 20 is pressed, the writing sheet 12 is conveyed, and the pump 34 is operated. Then, first, the cleaner liquid 37 in the cleaner liquid tank 60 is sucked up.

When the pump 34 is operated, first, the height difference h between the cleaner liquid level in the cleaner liquid tank 60 and the suction port of the pump 34 so that the cleaner liquid 37 in the cleaner liquid tank 60 can be sucked up. (See Fig. 11)
It is preferable to install the cleaner liquid tank 60 and the pump 34 close to each other in order to reduce the size of the cleaner liquid tank 60.

Then, the suction of the cleaner liquid 37 from the cleaner liquid tank 60 is used as a priming water to make the cleaner 2
6, the inside of the concave groove 26c is made negative pressure, and the writing sheet 12 applied to the cleaner 26 by the tension is further attracted.
The opening 26b is closed by the writing sheet 12 in close contact with the pressing surface 26a of the cleaner 26. At this time, as shown in FIG. 4, the surface of the writing sheet 12 is brought into contact with the tip of the brush 27 to prevent the writing sheet 12 from deforming and entering into the concave groove 26c.

By the operation of the pump 34, the cleaner liquid 37 in the storage container 32 is circulated through the concave groove 26c in the cleaner 26 as shown by an arrow in FIG.
The writing sheet 12 is conveyed, and the opening 26 of the cleaner 26 is opened.
b on the surface of the writing sheet 12 through the cleaning liquid 3
7 and the surface is cleaned and squeezed to write sheet 12
Erase the contents written above. In the illustrated embodiment, the grooves 26
Since the brush 27 is provided in c, the cleaner 27 can sufficiently hold the cleaner liquid 37 and can be applied evenly to the surface of the writing sheet 12.

After erasing the written contents, the erase switch 20a is pressed again to stop the conveyance of the writing sheet 12 and stop the operation of the pump 34. In the illustrated example, the electromagnetic valve 31 is closed by a timer for a certain period of time, and as shown in FIG.
Block 7 Then, the cleaner liquid 37 of the cleaner 26 including the ink adhering to the pressing surface 26a is forcibly removed by suction and completely removed after a predetermined time has elapsed. open. As a result, the cleaner liquid 37 from the cleaner 26 after erasure is obtained.
Prevent leakage.

At this time, for example, a three-port valve is used as the electromagnetic valve 31 to shut off the passage from the storage container 32 to the cleaner 26 and to open the passage to the atmosphere when suctioning and removing the remaining cleaner liquid. Then, the air can be sucked in to further enhance the suction effect of the residual cleaner liquid.

By the way, in this type of electronic blackboard device, the writing sheet 12 is automatically switched by operating a switching operation member such as a switch or a lever provided at an appropriate position, and automatically when the erase switch 20a is operated. It is preferable that the cleaner device 26 is brought into contact with and separated from the cleaner device 26.

For example, when erasing the written contents, the writing sheet 12 is applied to the cleaner 26 by the tension of the writing sheet 12 as shown in FIG. 8, and when not erasing, the link mechanism is operated by operating a solenoid (not shown). Then, the cleaner 26 is moved away from the writing sheet 12 as shown in FIG.

Note that, as shown in FIG.
Assuming that the height difference between the liquid level in the cleaner and the inlet 26d of the cleaner 26 is H, the greater the H, the higher the pump pressure must be set.
Of the cleaner device 26 with respect to the pressure.
Therefore, in this type of electronic blackboard device, the position of the storage container 32 may be set so that the suction force is the best.

In the illustrated example, as shown in FIGS. 3 and 11, the cleaner liquid tank 60 of the second circulation path K and the pump 3
A flow control device 63 is provided between the four. Then, the flow rate adjusting device 63 is adjusted to adjust the maximum flow rate of the cleaner liquid 37 flowing through the bypass pipe 62. As a result, the cleaner liquid 37 in the cleaner liquid tank 60 is used as priming water so that the pump 34 can surely suction the cleaner liquid 37 from the cleaner device 26 and the cleaner device 2.
6 finely adjusts the attraction force for attracting the writing sheet 12.

In the illustrated example, the second circulation path K is formed by providing the overflow pipe 61 for guiding the cleaner liquid 37 overflowing from the storage container 32 to the cleaner liquid tank 60 as described above. When the amount of the cleaner liquid 37 in the storage container 32 becomes equal to or more than a predetermined amount, the cleaner overflows and enters the cleaner liquid tank 60 through the overflow pipe 61. As a result, the pump pressure for sucking up the cleaner liquid 37 is kept constant while the cleaner liquid level in the storage container 32 is kept constant, and fluctuations in the suction force of the cleaner device 26 to the writing sheet 12 can be eliminated.

In the illustrated example, as shown schematically in FIG. 11, the cleaner liquid tank 60 is provided with a liquid contamination detecting means 70 for detecting the concentration of the cleaner liquid 37, such as an optical sensor. Then, when the detected concentration becomes equal to or higher than a predetermined value, a cleaner liquid exchange signal for urging the exchange of the cleaner liquid 37 is transmitted, and a warning is issued by appropriate means.

In this type of electronic blackboard device, the pressing surface 26a of the cleaner 26 which comes into contact with the writing sheet 12 is
For example, Teflon treatment may be performed by attaching a Teflon tape or the like. By doing so, it is possible to prevent the surface of the writing sheet 12 from being scratched by being rubbed, and to reduce the frictional resistance between the writing sheet 12 and the cleaner 26.

Further, the surface of the writing sheet 12 is subjected to mat processing by, for example, hitting a sand. By doing so, the surface roughness of the writing sheet 12 can be increased, writing on the writing sheet 12 can be facilitated, and the written content can be easily viewed from the side, for example, by eliminating reflection.

Incidentally, in the above-described example, the example in which the electronic blackboard device 10 is a wall-mounted type is shown. However, in the present invention, the writing board device is not limited to the wall-mounted type, and may be a stand-supporting type that is supported by a stand 42 as shown in FIG. It may be a desktop type.

In the example shown in FIG. 12, storage cases 65 and 66 are sequentially provided below the printer 17, the pump 34 is stored in the upper storage case 65, and the cleaner liquid tank 60 is stored in the lower storage case 66. Will be stored.
In addition, another storage case 67 is provided on the frame case 11 just behind the position of the erase switch 20a.
2 is stored. In addition, in FIG. 12, the reference numerals used for the corresponding parts in FIG. 3 are used as they are, and the duplicate description will be omitted.

In the above example, the writing sheet 12
Is transported in the left-right direction, but may be transported in the up-down direction as shown in FIG. That is, in FIG.
The driving roller 22 and the driven roller 23 are provided horizontally, and a guide roller 43 is also provided.
-It wraps between 43, and the writing sheet 12 is spread in a triangle.

The electronic blackboard device shown in FIG. 13 is also provided with a cleaner liquid tank 60 separately from the storage container 32 and
A first circulation path J for circulating the cleaner liquid 37 in the cleaner liquid 37 through the cleaner device 26 by the pump 34 while supplying the cleaner liquid 37 to the cleaner liquid 37 is formed, and separately, the cleaner liquid 37 in the cleaner liquid tank 60 is pumped. At 34, a second circulation path K which circulates through the storage container 32 while supplying the cleaner liquid 37 thereto is formed.

The driving roller 22 and the guide roller 4
The cleaner 26 is pressed against the horizontal portion of the writing sheet 12 to be bridged between the three from below. The cleaner 26 is provided on the liquid receiving tray 44. If the cleaner 37 leaks from the cleaner 26, it is received by the liquid receiving tray 44, and the received cleaner 37 is passed through the tube 45 to the storage container 3.
2 can be returned. In addition, FIG.
Also in 3, the same reference numerals are used for corresponding parts in the above-described example, and detailed description is omitted.

Further, in the above-described example, the example in which the recording medium A is rotated and conveyed as the endless writing sheet 12 has been described. However, in the present invention, the recording medium A may be formed into an endless belt shape, and may be stretched between a plurality of rollers to be reciprocated. The recording medium A is a roll-up screen type. When writing, the recording medium A is rewound and latched, and the recording medium A is stretched in a screen shape. You may make it roll up. For example, a cleaner is provided at the position where the recording medium A is pulled out so as to sandwich the recording medium A between the back plate, and when the medium is rolled up after use, the cleaner liquid adheres to the cleaner to erase the written contents. To

In the above-described example, the thermal transfer printer 17 is used as the printing means C. However, the printing means C is not limited to a thermal transfer printer, but may be an ink jet printer using an ink erasable with a cleaner solution.

When such an ink jet printer is used, the recorded content can be erased by wiping the recording surface of the recording paper with a cleaner so that the recording paper can be used over and over again. I can respond.

Further, for example, a communication means G for transmitting and receiving to and from an external electronic blackboard device is connected to a personal computer PC, and for example, the written content read by the written content reading means B or the document information read by the document information reading means D is read. It is preferable that the information is transmitted to a remote location, and that the transmission information from the remote location is received and input to the printing means C or the automatic writing means E.

At this time, it is preferable that the communication means G can simultaneously transmit and receive the erasure signal, and the automatic erasure means F automatically erases the written contents on the recording medium.

Then, after the erasing signal is transmitted by the communication means G to automatically erase the written contents on the other party's recording medium,
For example, the contents of writing and document information are transmitted to write on the recording medium of the other party. In the communication means G,
After receiving the erasure signal and automatically erasing the writing contents of the recording medium A at its own location, for example, the transmission information is received and the automatic writing means E performs writing on the recording medium A.

In the above description, the case where the present invention is applied to an electronic blackboard device has been described. But,
The present invention can be similarly applied to a presentation device used for giving a presentation, for example, in addition to the electronic blackboard device. FIG. 14 is a block diagram of an example of a case where the present invention is applied to a presentation device.

The illustrated presentation device is provided, for example, by wrapping an endless device between a driving roller and a driven roller, and writing with a writing tool using, for example, a water-soluble or semi-water-soluble ink erasable with a cleaner such as water. A sheet-shaped recording medium A to be read, document information reading means D for scanning the document and reading document information on the surface thereof, and ink capable of erasing the document information read by the document information reading means D with a cleaner liquid. Automatic writing means E such as an ink jet printer / plotter for writing on a recording medium A using
And automatic erasing means F for automatically erasing written contents on the recording medium A by adhering a cleaner solution to the surface thereof while scanning the recording medium A, and rubbing the recording medium A by hand and Dry manual erasing means f for erasing written contents on the surface, communication means G for transmitting and receiving to and from external equipment such as another presentation device, and personal computer PC for controlling the whole
And comprising.

Then, at the time of use, arbitrary writing is performed on the recording medium A by hand with a writing instrument using ink erasable with a cleaner solution. Alternatively, the original information is scanned by the original information reading means D to read the original information on the surface of the original, and the writing is performed on the recording medium A by the automatic writing means E using ink erasable with a cleaner solution.

When the written contents on the recording medium A are to be manually erased, the dry manual erasing means f is held by hand and the recording medium A is rubbed to erase the written contents on the surface thereof. When all the written contents on the recording medium A are to be erased collectively, the automatic erasing means F erases the written contents by adhering a cleaner liquid to the surface while scanning the recording medium A.

Further, using the communication means G, for example, the original information read by the original information reading means D is transmitted to a remote place, and the transmission information from the remote place is received and inputted to the automatic writing means E to be recorded. Writing is performed on the medium A and displayed on the display surface of the display board 80 of the presentation device, for example, as shown in FIG.

FIG. 16 is a block diagram showing the configuration of a presentation apparatus in which a display surface is provided on the back side of the display board. In this presentation device, FIG.
As shown in (1), display is performed on the back side of the display board 80, and writing can be performed from the back side.

In the examples shown in FIG. 16 and FIG. 17, the case where the display board 80 has two display surfaces has been described. .

[0085]

Therefore, according to the present invention, in a writing board apparatus for writing on the surface of a recording medium with a writing instrument using ink which can be erased with a cleaner liquid, the written contents on the recording medium are manually erased. At this time, since the dry manual erasing means is gripped by hand and rubbed on the recording medium to erase the written content on the surface, the written content can be erased by hand while looking at the written surface.

According to the second aspect of the present invention, the writing signal is received, and the writing is automatically performed on the recording medium by the writing implement by the automatic writing means using the ink erasable with the cleaner liquid. Can also be erased cleanly by hand. In addition to the above effects, the contents of the original and the contents stored in the floppy disk can be written on the recording medium. There is no economic.

According to the third aspect of the present invention, when all the written contents on the recording medium are to be erased at a time, the cleaning liquid is moved relative to the surface of the recording medium while being scanned by the automatic erasing means. Is attached to erase the written contents. In addition to the above-described effects, all the written contents can be automatically erased without any trouble, and the hassle that must be erased by hand can be eliminated.

According to the fourth aspect of the present invention, when all the written contents on the recording medium are collectively erased, the erase switch of the automatic erasing means is operated and the pump is operated to operate the storage container and the cleaner. Since the cleaner circulates between and, the cleaner moves relative to scan the recording medium with the cleaner and cleans the surface of the recording medium with the cleaner, so that the cleaning liquid is squeezed.
In addition to the above-described effects, the cleaner liquid can be circulated and the written contents can be repeatedly erased by a simple operation simply by operating the erase switch.

According to the fifth aspect of the present invention, the concentration of the cleaner liquid is detected by the liquid contamination detecting means, and when the detected concentration is equal to or higher than a predetermined value, the cleaner liquid exchange signal for prompting the replacement of the cleaner liquid is transmitted. In addition to the effect, it is possible to prevent the cleaning liquid from being forgotten to be exchanged and to prevent the erasing performance from being lowered.

According to the sixth aspect of the present invention, the water used as the cleaner liquid adheres to the surface of the recording medium by the automatic erasing means and erases the written contents on the recording medium. This eliminates the trouble of ordering a cleaner solution or preparing a spare cleaner solution, thereby improving the usability.

According to the seventh aspect of the present invention, if necessary, the writing contents are read relative to the recording medium by scanning relative to the recording medium by means of the writing contents reading means and are recorded on the recording paper by the printing means. In addition to the effects, the function of the writing board device can be expanded.

According to the eighth aspect of the present invention, in addition to the above-mentioned effects, in addition to transmitting the written contents read by the written contents reading means to the remote place using the communication means, the transmission information from the remote place is transmitted. And input it to, for example, a printing means to record it on recording paper, or input it to an automatic writing means to write it on a recording medium.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating an example of a case where the present invention is applied to an electronic blackboard device.

FIG. 2 is a diagram illustrating a use state of a wall-mounted electronic blackboard device that embodies the electronic blackboard device.

FIG. 3 is a perspective view showing a schematic configuration of the internal mechanism.

FIG. 4 is a cross-sectional view of a cleaner used in the electronic blackboard device.

FIG. 5 is a cross-sectional view of another example of the cleaner used in the electronic blackboard device.

FIG. 6 is a cross-sectional view of still another example of the cleaner used in the electronic blackboard device.

FIG. 7 is a longitudinal sectional view of a storage container used in the electronic blackboard device.

FIG. 8 is an explanatory diagram showing a flow of a cleaner liquid when erasing written contents in the electronic blackboard device.

FIG. 9 is an explanatory diagram showing the flow of the cleaner liquid when the residual cleaner liquid is removed by suction after erasing the written contents.

FIG. 10 is an explanatory view showing a state where a cleaner device is separated from a recording medium in the electronic blackboard device.

FIG. 11 is an explanatory diagram showing an entire flow of the cleaner liquid when erasing written contents in the electronic blackboard device.

FIG. 12 is an explanatory diagram of a use state when the electronic blackboard device is used by being supported by a stand.

FIG. 13 is a perspective view showing a schematic configuration of an internal mechanism of an electronic blackboard device of a type for conveying a recording medium in a vertical direction.

FIG. 14 is a block diagram illustrating an example of a configuration in which the present invention is applied to a presentation device.

FIG. 15 is a diagram illustrating a use state of a stand-support type presentation device that embodies the presentation device.

FIG. 16 is a block diagram showing a configuration of a presentation device in which a display surface is also provided on the back side of the display board.

FIG. 17 is a use state diagram showing front and back surfaces of a stand supporting type display board which embodies the presentation device.

[Explanation of symbols]

 Reference Signs List A recording medium B writing content reading means C printing means D original information reading means E automatic writing means F automatic erasing means f manual erasing means G communication means PC personal computer 10 electronic blackboard device (writing board device) 12 writing sheet (recording medium) 14 Writing implement 15 Wiping implement (manual erasing means) 17 Thermal transfer printer 20 Switch group 20a Erase switch 22 Drive roller 23 Follower roller 25 Scanner 26 Cleaner 32 Storage container 34 Pump 37 Cleaner liquid 60 Cleaner liquid tank 70 Liquid stain detecting means 80 Presentation device Display board

Claims (8)

[Claims] 1. A writing board apparatus for writing on a sheet-like recording medium with a writing implement using ink erasable with a cleaner liquid, wherein the writing content is written on a surface of the writing medium by holding it by hand and rubbing the recording medium. A writing board device comprising dry manual erasing means for wiping off. 2. The writing board apparatus according to claim 1, further comprising an automatic writing means for receiving a writing signal and automatically writing the recording medium with a writing implement using ink erasable with a cleaner liquid. . 3. An automatic erasing means for automatically erasing written contents on the recording medium by adhering a cleaner liquid to the surface while scanning the recording medium.
A writing board device according to item 1. 4. The automatic erasing means, a cleaner device for squeezing the recording medium with a cleaning squeeze to erase the written contents on the recording medium, a storage container for storing the cleaner liquid, and the storage container and the cleaner when activated. 4. The writing board device according to claim 3, further comprising: a pump that circulates the cleaner liquid between the cleaner device and an erase switch that operates the pump and scans the recording medium with the cleaner device. 5. 5. The writing board apparatus according to claim 1, further comprising a liquid stain detecting means for detecting a concentration of the cleaner liquid and transmitting a cleaner liquid exchange signal. 6. The writing board according to claim 1, wherein the ink for writing on the recording medium can be erased with water, and water is used as a cleaner liquid. apparatus. 7. A writing content reading means for scanning the recording medium to read the writing content, and a printing means for recording the writing content read by the writing content reading means on a recording sheet. The writing board device according to 1, 2, 3, 4, 5, or 6. 8. The writing board device according to claim 1, further comprising communication means for transmitting and receiving to and from an external device.