JPH091982A - Message board - Google Patents

Abstract

PURPOSE: To facilitate automatic disappear after elapse of a specific time of a message written on a write surface by a method wherein water writing brush paper having the write surface on which the message can be freely written is stored in a main body case, and a display window to which at least a part of the write surface is opposed, is formed to the main body case. CONSTITUTION: When a carrier roller 2a is rotated by driving with a motor 6, water writing brush paper 3 is also transferred. When a message is written on a write surface 4 opposed to a display window 5 with a write pen, the message is transferred in the display window 5 following transfer of the water writing brush paper 3, and soon disappears. Besides, though the write surface 4 turning a rear surface side of a main body case 1 from an upstream side in the display window 5 along the transfer direction of the water writing brush paper 3 appears freshly, volatility of liquid used for writing of the message is adjusted so that the message automatically disappears while the write surface 4 is transferred on a rear surface side of the main body case 1. As liquid filling inside a write pen, glycols and preferably ethylene glycol are used.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a message board.

[0002]

2. Description of the Related Art As a conventional message board, a blackboard type in which a message is written using black ink and a whiteboard type in which a message is written using an ink pen are widely used.

[0003]

In the message board of the blackboard type, it is necessary for the attendant to erase the written message at every elapse of a certain time, which requires a great deal of labor. In addition, when erasing characters and the like, the black powder is easily erased and scattered, and the scattered white powder may be sucked.
Further, since the written message can be easily erased, it may be erased or rewritten due to mischief or mistake, and the reliability of reliably transmitting the message is low. In some cases, there is no space to write a message, so it may not be available.

On the other hand, in the whiteboard type message board,
Although the amount of scattered eraser when erasing a message is greatly reduced, the clerk still has to erase the written message after a certain period of time. And like a blackboard message board, it is easy to erase written messages, so there is a low degree of reliability regarding the reliable transmission of messages, and it may not be available because there is no space for writing messages. . Further, careless handling of the pen may stain hands and clothes.

[0005]

A message board according to the present invention is characterized in that a writing paper having a writing surface on which a message can be freely written is housed in a main body case, and at least a part of the writing surface faces each other. A display window is formed on the main body case.

According to a second aspect of the present invention, in a message board, a writing paper having a writing surface on which a message can be written is movably accommodated in a main body case, and a display window facing a part of the writing surface is provided. A new portion of the writing surface, which is formed on the main body case and was opposed to the display window on the writing surface, is moved to a position not facing the display window, and a new portion of the writing surface on which no message is written is the display window. A moving means for moving the writing paper is provided so as to move to a position opposite to.

The message board of the invention according to claim 3 is the message board according to claim 2.
In the message board of the invention described above, a time stamp indicating the time is provided on the writing surface, and the moving means is arranged so that the time stamp corresponding to the current time is located at the most upstream position in the display window along the moving direction of the writing paper. A control unit for controlling the is provided.

The message board of the invention according to claim 4 is the message board according to claim 2.
Alternatively, in the message board of the invention described in 3, the transparent cover for covering the display window is attached to the main body case, and the writing window located at the most upstream position in the display window along the moving direction of the writing paper is formed in the transparent cover. .

[0009]

In the message board according to the first aspect of the present invention, when a message is written on the writing surface facing the display window of the main body case, the message automatically disappears after a predetermined time has elapsed. On the other hand, a message once written is hard to be erased by mischief or mistake.

In the message board according to the second aspect of the present invention, the message written on the writing surface of the writing paper automatically disappears after a lapse of a predetermined time. On the other hand, a message once written is hard to be erased by mischief or mistake. Further, the writing paper is moved by the moving means, and by this movement, the writing surface on which the message is written facing the display window is moved to a position not facing the display window, and the message on the writing surface is written. Not move a new part to the position facing this display window.

In the message board according to the third aspect of the invention, a time stamp indicating the current time is provided at the most upstream position along the moving direction of the writing paper on the writing surface facing the display window. Therefore, by writing a message near the time stamp corresponding to the current time, it is possible to see at a glance what time the message was written.

In the message board according to the fourth aspect of the present invention, the message can be written on the writing surface only through the writing window formed on the transparent cover. The message written on the writing surface moves to a position covered by the transparent cover due to the movement of the brush paper.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 (a) is a front view showing the entire structure of the message board with a part broken away, and FIG. 1 (b) is a horizontal sectional view thereof. In the main body case 1 of this message plate, a pair of conveying rollers 2a, 2b having a vertical axis and arranged in parallel are housed rotatably around the axis, and these conveying rollers 2a, 2b are An endless writing paper 3 is wound around in a loop shape, and an outer peripheral surface side of this writing paper 3 is a writing surface 4 on which a message can be freely written. In addition,
A display window 5 facing the writing surface 4 is formed on the front side of the main body case 1. Further, on one of the transport rollers 2a, a portion of the writing surface 4 that has been opposed to the display window 5 is moved to a position that does not face the display window 5 and a message on the writing surface 4 is written. A motor 6 which is a moving means for moving the above-mentioned writing paper 3 is connected so that a new portion which is not opened moves to a position facing the display window 5.

The structure of the writing paper 3 and the principle of writing a message on the writing surface 4 will be described with reference to FIG. The brush paper 3 is formed of three layers of a white layer 3a, a black layer 3b, and a base paper 3c. When a liquid such as water or an organic solvent adheres to the white layer 3a, the liquid penetrates into the white layer 3a while wetting the white layer 3a, and the white layer 3a wet with the liquid becomes a transparent state (including a semitransparent state). Then, when the liquid reaches the black layer 3b, the black layer 3b can be seen through from the writing surface 4 side, and the message is written in black on the writing surface 4. When the liquid evaporates, the white layer 3a that was in a transparent state returns to the original white state, and the black layer 3
When b disappears and disappears, the message written on the writing surface 4 automatically disappears. Also, by changing the color of the black layer 3b to another color, it is possible to display a message in a color other than black.

As a liquid used for writing a message, a volatile colorless and transparent liquid such as water or an organic solvent (alcohols / esters) is used. The time until the formed image is naturally erased depends on the type of liquid used, and according to specific experimental results, water is 5 minutes, propylene glycol is 1 hour, ethylene glycol is 3 hours, and diethylene glycol is 3 hours. Is 6 hours. Therefore, it is desirable to use ethylene glycol or diethylene glycol when displaying an image once formed for a long time. As a tool for writing a message, a writing pen (not shown) is used which is filled with water or an organic solvent and which allows the filled water or the like to ooze from the core of a urethane sponge or the like.

In such a structure, the conveying roller 2a is always driven to rotate slowly in the direction of arrow a by the driving of the motor 6, whereby the brush paper 3 is always moved slowly in the direction of arrow b.

Then, the writing surface 4 facing the display window 5
When a message is written using a writing pen, the message moves in the direction of arrow b in the display window 5 as the brush paper 3 moves,
Eventually, it passes through the position facing the display window 5 and disappears.

On the other hand, from the upstream side in the display window 5 along the moving direction of the brush paper 3, a writing surface 4 newly appearing around the back side of the main body case 1 appears, but the writing surface 4 is the main surface case 1. The volatility of the liquid used for writing the message is adjusted so that the message written on the writing surface 4 automatically disappears while moving on the back side of the. Specifically, by using glycols, preferably ethylene glycol, as the liquid to be filled in the writing pen, the message written on the writing surface 4 disappears in about 3 hours. Therefore, by setting the moving speed of the writing paper 3 to make one rotation in 6 hours or more, the display window 5 along the moving direction of the writing paper 3 is set.
The message has disappeared from the writing surface 4 that appears from the upstream side.

Here, since the message written on the writing surface 4 automatically disappears after a lapse of a predetermined time, it is not necessary for the clerk to erase the written message at regular intervals, and the message board Labor required for management and maintenance is greatly reduced. Moreover, there is no erasure as in the case of erasing a message written using chalk.

Further, the once written message is hard to be erased due to mischief, mistake, etc., and the reliability of reliably transmitting the message is increased. In addition, since the writing paper 4 on which the writing paper 3 has not been written and the writing paper 4 always appears newly when the writing paper 3 is written, there is almost no space for writing the writing message and therefore the writing surface 4 cannot be used.

As the liquid used for the writing pen,
Since a colorless and transparent liquid such as water or alcohol is used, this liquid does not stain hands or clothes.

In the present embodiment, the transport roller 2
Although the writing paper 4 is written to the writing surface 4 by strongly stretching the writing paper 3 wound between a and 2b, the back side of the writing surface 4 facing the display window 5 By installing the back plate on the writing surface, the writing property of the message to the writing surface 4 can be improved.

In this embodiment, the case where the brush paper 3 is always moved at a constant speed has been described as an example.
A switch for fast-forwarding the writing paper 3 may be provided, and the writing paper 3 may be fast-forwarded while the switch is being pressed. In this way, a sufficient writing space can be secured even when the amount of message to be written is large.

Next, a second embodiment of the present invention will be described with reference to FIG. The same parts as those described in FIGS. 1 and 2 are denoted by the same reference numerals, and description thereof will be omitted. A time stamp 8 representing a time is printed for 24 hours on the writing surface 4 of the loop-shaped writing paper 7 wound between the transport rollers 2a and 2b.

Further, a control unit (not shown) for driving the motor 6 is provided so that the time stamp 8 corresponding to the current time is located at the most upstream position of the display window 5 along the moving direction of the brush paper 7. The brush paper 7 driven by the motor 6 is 24
It makes one revolution in time.

In such a structure, the time stamp 8 that coincides with the current time is located at the most upstream position in the display window 5 along the moving direction of the brush paper 7. Therefore, when writing a message on the writing surface 4, the message is written near the time stamp 8 that coincides with the current time.

Then, with the movement of the writing paper 7 with the passage of time, the time stamp 8 and the message move together toward the most downstream position in the display window 5 along the movement direction of the writing paper 7. . Therefore, the message is displayed in the display window 5 for the longest time, and at what time the message is written.

When the display surface 4 of the writing paper 7 appears at the most upstream position in the display window 5 along the movement direction of the writing paper 7, the message written in that portion has already disappeared. And, it is ready to write a new message.

Next, a third embodiment of the present invention will be described with reference to FIG. The same parts as those described in FIGS. 1 to 3 are designated by the same reference numerals, and the description thereof will be omitted.
A transparent cover 9 that covers the display window 5 is attached to the main body case 1. On this transparent cover 9, a writing window 10 is formed at the most upstream position in the display window 5 along the moving direction of the writing paper 7, and a message to the writing surface 4 of the writing paper 7 is formed. Writing is performed from this writing window 10.

In such a structure, when a message is written on the writing surface 4 through the writing window 10, the message is moved away from the position facing the writing window 10 as the brush paper 7 moves, and the transparent cover. Move to the position covered by 9.

Here, to write a message on the writing surface 4,
The writing window 10 can be performed only in the portion facing the writing window 10.
It cannot be applied to the part that has passed the position opposite to. Therefore, the message written on the writing surface 4 and the writing window 10
The message moved to the position covered by the transparent cover 9 after passing through the position opposite to is not rewritten by mischief, and the reliability of reliably transmitting the message is significantly improved.

Further, by providing the transparent cover 9, the portion of the writing paper 7 exposed to the outside is extremely reduced, and the writing paper 7 is prevented from being contaminated by dust or sand.

[0033]

According to the message board of the invention described in claim 1,
Since the message is written on the writing surface of the writing paper, the written message automatically disappears after a lapse of a predetermined time, which eliminates the need for a staff member to erase the written message at regular intervals. The labor required for maintenance can be significantly reduced, and once a message is written, it is difficult to erase it due to mischief or mistakes, and it is possible to improve the reliability of reliably transmitting the message. Since writing can be performed using a colorless and transparent liquid, it is possible to prevent the hand and clothes from being soiled by this liquid.

According to the message board of the invention described in claim 2, since the message is written on the writing surface of the writing paper, the written message automatically disappears after a predetermined time elapses. It eliminates the need to erase every time, can greatly reduce the labor required to manage and maintain the message board, and the message once written is difficult to be erased due to mischief or mistakes, and the message can be reliably transmitted. Can improve the credibility of things,
Further, since the message can be written using a colorless transparent liquid, it is possible to prevent the hand and clothes from being soiled by this liquid, and the writing paper is written by being moved by the moving means. Since the new portion of the surface where no message is written moves to the position facing the display window in sequence, it is possible to prevent that the message cannot be written because there is no space for writing the message. .

According to the message board of the invention described in claim 3, a time stamp is provided on the writing surface of the writing paper, and a time corresponding to the current time is set at the most upstream position in the display window along the moving direction of the writing paper. In order to move the writing paper so that the mark is located, by writing a message near the time stamp corresponding to the current time,
You can check at a glance what time the message was written.

According to the message board of the invention described in claim 4, the message can be written on the writing surface only through the writing window formed on the transparent cover, and the message written on the writing surface is moved by the movement of the brush paper. If you move to a position covered by a transparent cover, you can not reliably rewrite this message by mischief, so you can greatly improve the reliability of reliably transmitting the message, and further, it is possible to increase the size of the brush paper. By covering the part with a transparent cover, it is possible to prevent stains on the writing paper due to dust and sand.

[Brief description of the drawings]

FIG. 1 shows a message board according to a first embodiment of the present invention,
(A) is a partially broken front view and (b) is a horizontal sectional view.

FIG. 2 is a cross-sectional view showing the structure of brush paper.

FIG. 3 shows a message board according to a second embodiment of the present invention,
(A) is a front view and (b) is a horizontal sectional view.

FIG. 4 shows a message board according to a third embodiment of the present invention,
(A) is a front view and (b) is a horizontal sectional view.

[Explanation of reference numerals] 1 main body case 3,7 writing paper 4 writing surface 5 display window 6 moving means 8 time stamp 9 transparent cover 10 writing window

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shoichi Chiba, Shibata-cho, Shibata-gun, Miyagi, Nakameisei, No. 3 Shinmeido, Tomei Ricoh Co., Ltd. (72) Inventor, Kazuhiko Kitano, Nakata, Shibata-shi, Shibata, Miyagi Shinmeido 3 No. 1 Tohoku Ricoh Co., Ltd.

Claims (4)

[Claims] 1. A writing paper having a writing surface on which a message can be freely written is housed in a main body case, and a display window at least a part of which the writing surface faces is formed in the main body case. message board. 2. A writing paper having a writing surface on which a message can be written is movably accommodated in a main body case, and a display window facing a part of the writing surface is formed in the main body case. A part of the writing surface facing the display window moves to a position not facing the display window, and a new part of the writing surface on which no message is written moves to a position facing the display window. A message board, characterized in that it is provided with a moving means for moving the above-mentioned brush paper. 3. A time stamp indicating the time is provided on the writing surface, and the moving means is controlled so that the time stamp corresponding to the current time is located at the most upstream position in the display window along the moving direction of the writing paper. The message board according to claim 2, further comprising a control unit for controlling. 4. A transparent cover for covering the display window is attached to the main body case, and a writing window located at the most upstream position in the display window along the moving direction of the writing paper is formed in the transparent cover. The message board according to claim 2 or 3.