JPH10114191A - Writing board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate erasing of a written image desired to be stored contrary to intention by carelessly operating an erasing switch in a writing board such as an electronic blackboard for erasing the image on a writing sheet by operating an automatic eraser by operating the switch. SOLUTION: An erasing switch 40 is connected together with an automatic erasing unit 30 to a control means 35, and the unit 30 is started when operation of the switch 40 for a set time or longer is sensed by the means 35. When copying of a written image is, for example, desired, even if the switch 40 is erroneously pushed once, the unit 30 is not operated only by it, but as long as the switch 40 is not continuously operated for a set time or more, it prevents erroneous erasing of the image.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a writing board for writing images such as characters and pictures on a writing sheet by using a writing instrument, such as an office electronic blackboard, a child's drawing board, a bulletin board, and a message board.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 7, an endless writing sheet 3 is stretched between a driving roller 1 and a driven roller 2 in a writing board of this kind, for example, an office electronic blackboard. 3 is provided with a reading device 4 for recording a written image, while a rotary brush 5 for erasing a written image is provided beside the drive roller 1 so as to be able to freely contact and separate from the writing sheet 3.

[0003] When using the electronic blackboard,
An image is written on a writing surface a visible from the front writing window 6. To continue writing without erasing the written image, press the sheet feed switch to set the driving roller 1
Is driven to send out the writing sheet 3 to feed out a portion where nothing is written. Then, when the user wants to save the written image, he pushes the copy switch to drive the drive roller 1, sends the writing sheet 3, reads the written image by the reading device 4, and reads the read content on paper by a printer (not shown). Record reduced.

On the other hand, when erasing the written image, the erasing switch is pressed to rotate the rotating brush 5, and the driving roller 1 is driven to feed the writing sheet 3, while the brush contact / separation mechanism (not shown) is operated to rotate. The brush 5 is pressed against the writing sheet 3 and the writing image is wiped off by the rotating brush 5. When the desired erasing range is exceeded, the erasing stop switch is pressed to stop the sheet feeding, and the rotation of the rotating brush 5 is stopped and pressed. The reliance had been released.

[0005]

However, such a conventional writing board such as an electronic blackboard is usually provided with a large number of switches described above for operation thereof on an operation panel (not shown). In order to make a copy, the user must inadvertently press the erase switch when the copy switch should be pressed, and as a result, there is a problem that an important written image to be stored is erased.

[0006]

Therefore, according to the first aspect of the present invention, a write operation is performed by operating an automatic eraser 30 by operating an erase switch 40 as in the embodiment shown in FIG. The writing board for erasing the written image on the sheet 15 includes a control means 35 for activating the automatic erasing device 30 when detecting that the erasing switch 40 has been operated for a set time or more.

According to a second aspect of the present invention, for example, as shown in the embodiment shown in FIG.
In a writing board for erasing a written image on the writing sheet 15 by operating the automatic erasing device 30 by operating the erasing switch 40b, a plurality of erasing switches 40a and 40b are provided.
And control means 35 for activating the automatic erasing device 30 when it is detected that the user has simultaneously operated.

According to a third aspect of the present invention, as in the embodiment shown in FIG. 3, the erase switch 40 is operated to activate the automatic erasing device 30 to erase the written image on the writing sheet 15. The writing board according to claim 1, further comprising control means for operating the automatic erasing device when it detects that one erasing switch has been operated a plurality of times.

According to a fourth aspect of the present invention, an automatic erasing device 30 is operated by operating an erasing switch 40 to erase a written image on a writing sheet 15 as in the embodiment shown in FIG. The writing board to be operated is characterized in that the automatic erasing device 30 is operated when the operation of the erasing switch 40 is detected, and the control means 35 for activating the erasing notification means 50 is provided.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 6 shows an external configuration of an office electronic blackboard according to an embodiment of the present invention.
Reference numeral 10 in the figure denotes a board device main body of the electronic blackboard. The board apparatus main body 10 includes a caster stand 11.
A writing window 13 is provided on the front side of the outer case 12, which is movably supported by the above and is slightly thin and long in the shape of a thin box, in the front of the figure. The pen tray 14 is provided on the outer case 12 along the lower edge thereof, and the printer 16 is mounted on the stand 11 at the lower right side of the pen tray 14. Further, an operation panel 17 having various switches is provided on the right side front surface of the outer case 12.

As shown in FIG. 5, a back plate indicated by reference numeral 22 is provided in the board device main body 10 at a position corresponding to the writing window 13. The drive roller 20 and the driven roller 21 are arranged upright on both left and right sides of the back plate 22 in the drawing, and are rotatably supported by upper and lower support frames (not shown). Also,
Driven rollers 23.2 near rollers 20 and 21 respectively
4 are arranged upright and rotatably supported by the same upper and lower support frames.

Then, the endless writing sheet 15 is wrapped around the rollers 20 to 24, and
Is urged by an unillustrated urging spring to spread over the writing window 13.
The writing surface A seen from the back is backed by a back plate 22. Although not shown, for example, the driving roller 20 is driven to move the writing sheet 15 to the lower end side of the driving roller 20.
And a sheet drive motor for feeding the sheet.

A reading device indicated by reference numeral 25 in FIG. 5 is provided in the outer case 12 behind the writing sheet 15. The reading device 25 includes a vertically long fluorescent lamp 26 and a mirror 2.
7, a lens 28, a photoelectric conversion element 29, and the like.

Further, an automatic erasing device indicated by reference numeral 30 in FIG. 5 is provided on the right side of the driving roller 20 in the drawing. The automatic erasing device 30 includes an erasing roller 31 provided near the driving roller 20. The erasing roller 31 is formed of a roller brush having a large number of hairs implanted on the outer periphery of a roller shaft 31a. Then, a roller shaft 31a is arranged in parallel with the drive roller shaft 20a, and both ends thereof are rotatably supported by the above-mentioned upper and lower support frames. The automatic erasing device 30 is not shown,
A roller drive motor that rotates by transmitting a driving force to the erasing roller 30 and a roller contact / separation mechanism that moves the erasing roller 30 to and away from the writing sheet 15 are provided.

Although not shown in FIG. 5, the operation panel 17 includes a power switch, various switches such as a copy switch, a sheet feed switch and a sheet feed stop switch, and an erase switch and an erase stop switch. Is provided.

When the above-described electronic blackboard is used, an image such as a picture or a character is written from the writing window 13 to the writing surface A using a writing instrument. To continue writing without erasing the written image, press the sheet feed switch to drive the drive roller 20 with the sheet drive motor, feed the write sheet 15 and bring out the blank portion to the write window 13 position. Then, the sheet feeding stop switch is pressed to stop the sheet feeding.

When the user wishes to save the written image, the user presses a copy switch, reads the written image with the reading device 25 while transporting the writing sheet 15, and reduces the read content on a sheet of paper by the printer 16.

On the other hand, when erasing the written image, the erasing switch is pressed to drive the roller driving motor to rotate the erasing roller 31, and the sheet driving motor is driven to convey the writing sheet 15. The erasing roller 31 is pressed against the writing sheet 15 by operating the roller contact / separation mechanism, and the erasing roller 31 erases the written image. Then, when the desired erasing range is exceeded, the erasing stop switch is pressed, the pressing of the erasing roller 31 is released, and the rotation is stopped.
The feeding of the writing sheet 15 is stopped to end the erasing.

In the electronic blackboard described above, the sheet driving motor, the printer 16 and the reading device 25 are electrically connected to control means (CPU) for controlling the entire operation of the electronic blackboard. As shown schematically, the same control means is connected to the automatic eraser 30 and the erase switch 40. Then, the erase switch 40
When the control unit 35 detects that the ON state has been continued by pressing for more than the set time, the operation of the automatic erasing device 30 is started. In the illustrated embodiment, a pressing time setting switch 41 is connected to the control means 35 so that the setting time can be arbitrarily adjusted. As the pressing time setting switch 41, for example, a dip switch or the like is used.

In the illustrated electronic whiteboard, when erasing a written image, the user keeps pressing the erase switch 40 for a set time or longer. Then, when the pressing time exceeds the set time, the automatic erasing device 30 starts its operation for the first time. That is, the erasing roller 3 is driven by the roller driving motor.
1 is rotated, the writing sheet 3 is conveyed by the sheet driving motor, and the erasing roller 31 is moved by the roller contact / separation mechanism.
To erase the written image. Therefore, for example, when it is desired to make a copy of the written image, simply pressing the erasing switch 40 unintentionally does not activate the automatic erasing device 30, and unless the erasing switch 40 is kept pressed for a set time or longer. The written image is not accidentally erased.

Note that the set time may be arbitrarily changed by the user as described above, or may be fixedly set to be unchangeable from the beginning. further,
In the above-described embodiment, the erase switch 40 is a push-down switch. However, the present invention is not limited to this. A switch of various operation systems such as a drawer switch can be used.

According to the second aspect of the present invention, a plurality of erase switches are simultaneously operated so that a written image is not erroneously erased due to a switch operation error as described above. It is characterized by comprising control means for activating the automatic erasing device upon detection.

For example, in the above-described illustrated electronic blackboard,
As shown in FIG. 2, the erase switch is composed of two erase switches 40a and 40b.
40b are connected to the control means 35, respectively. The erase switches 40a and 40b are provided on the operation panel 19 at such an interval that they cannot be simultaneously operated with one finger.

When the erasing switches 40a and 40b are simultaneously operated to erase the written image and the simultaneous operation is detected by the control means 35, the automatic erasing device 30 is operated to start erasing. Therefore, even if one of the erase switches is inadvertently operated, for example, when the user wants to make a copy of the written image, the automatic eraser 30 does not operate and the erase switches 40a and 40a
As long as 0b is not operated at the same time, the written image is not accidentally erased.

In the illustrated embodiment, two erase switches 40a and 40b are provided. However, it is also possible to provide three or more erase switches and operate the automatic eraser 30 when they are simultaneously operated.

Further, the invention according to a third aspect is characterized in that a control means for operating an automatic erasing device when detecting that one erase switch is operated a plurality of times is provided.

For example, as shown in FIG. 3, one erase switch 40 is connected to the control means 35, and the control means 35
Connected to the audio means 45 and the light emitting means 46, respectively, and connected to the automatic erasing device 30;
When the operation of “0” is repeated twice within a predetermined time, when it is detected, the control means 35 operates the automatic erasing device 30.

As the audio means 45, one that emits some warning sound or the like is used. As the light emitting means 46, the light is continuously turned on or intermittently flashed,
A lamp or the like is used as appropriate. Voice means 45 or light emitting means 4
6 may be provided. In addition, it is not necessary to provide both.

When erasing the written image, first, when the erase switch 40 is operated once, the sound means 45 and the light emitting means 46 are activated to notify that the written image is to be erased. Then, the user confirms from the light or the sound that the currently written image is to be erased, and operates the erase switch 40 again. Then, when the control means 35 detects that the erase switch 35 has been operated twice, the automatic eraser 30 is operated to start the erase. Therefore, even if the erasing switch 40 is operated by mistake once, the automatic erasing device 30 alone does not operate, and the written image is not erased. Moreover, in this embodiment, when the erase switch 40 is operated once, the user can be conscious of whether or not the erase is possible by light and sound, thereby more reliably preventing the written image from being accidentally erased. can do.

In the illustrated embodiment, the erase switch 40 is operated twice. However, the automatic eraser 30 may be operated only three times or more.

Further, in the invention described in claim 4 below,
When detecting that the erase switch has been operated, the automatic erase device is operated and a control means for operating the erase notification means is provided.

For example, as shown in FIG. 4, the erasure notifying means 50 is connected to the control means 35 to which the erasing switch 40 is connected, together with the automatic erasing device 30. As the erasure notifying means 50, for example, the above-described sound means, light emitting means, or the like is used. Then, when erasing the written image, the erase switch 40 is operated, and when the operation is detected by the control means 35, the automatic erasing device 30 is operated and at the same time the erasure notifying means 50 is operated.

In the illustrated embodiment, when the erasing switch 40 is operated, the automatic erasing device 30 is operated while notifying the user of the start of the erasing of the written image by sound or flashing light. Erase the written image. Therefore, even if the erase switch 40 is erroneously operated, for example, when the user wants to make a copy of the written image, the user immediately notices the error after the start of the erase operation and stops the erase operation.

[0034]

According to the present invention, it is possible to operate one erase switch continuously for a set time or more, to operate the erase switch multiple times, or to operate a plurality of erase switches simultaneously. Since the automatic erasing device does not operate unless a different operation from the switch operation of other switches is performed, the automatic erasing device does not operate unless the switch is consciously operated. In this manner, it is possible to prevent the user from inadvertently operating the erase switch to erase the written image to be saved.

According to the fourth aspect of the present invention, when the erase switch is operated, the automatic erasing device is activated and the erasure notifying means is activated. By immediately recognizing the error and stopping the erasure immediately after the start of the erasure, it is possible to similarly prevent the written image to be stored from being erased unintentionally.

[Brief description of the drawings]

FIG. 1 is an operation block diagram of an automatic erasing device in an office electronic blackboard according to an embodiment of the present invention;

FIG. 2 is an operation block diagram of an automatic erasing device in an office electronic blackboard according to an embodiment of the present invention;

FIG. 3 is an operation block diagram of an automatic erasing device in an office electronic blackboard according to an embodiment of the present invention;

FIG. 4 is an operation block diagram of an automatic erasing device in an office electronic blackboard according to an embodiment of the present invention;

FIG. 5 is a schematic configuration diagram showing an internal mechanism of the above-described electronic blackboard as viewed from above.

FIG. 6 is an external perspective view of the electronic blackboard.

FIG. 7 is a schematic configuration diagram showing an internal mechanism of a conventional office electronic blackboard as viewed from above.

[Explanation of symbols]

 15 Writing sheet 30 Automatic eraser 35 Control means 40 Erase switch 40a / 40b Erase switch 50 Erase notification means

Claims (4)

[Claims] 1. A writing board for erasing a written image on a writing sheet by operating an automatic erasing device by operating an erasing switch, wherein the automatic erasing device is activated when it is detected that the erasing switch has been operated for a set time or more. Comprising control means for activation;
Writing board. 2. A writing board for erasing a written image on a writing sheet by operating an automatic erasing device by operating an erasing switch, wherein the automatic erasing device is activated when it is detected that a plurality of erasing switches are simultaneously operated. Comprising control means for activation;
Writing board. 3. A writing board for erasing a written image on a writing sheet by operating an automatic erasing device by operating an erasing switch, wherein the automatic erasing device is detected when it is detected that one of the erasing switches is operated a plurality of times. Control means for operating the
Writing board. 4. A writing board for erasing a written image on a writing sheet by operating an automatic erasing device by operating an erasing switch, wherein the automatic erasing device is operated when it is detected that the erasing switch is operated. A writing board comprising control means for operating an erasure notifying means.