JPH07314985A - Display board - Google Patents

Abstract

PURPOSE:To make it possible to preserve recorded information for a long time with a concurrent action to make the best use of the advantages of a display board using a photochromic compound by providing a means for parking a display part in which data is recorded, through an opening part exposed to an outer area. CONSTITUTION:If information recorded in a part displayed in the opening part 2 of an image drawing sheet needs to be preserved, the part in which information to be preserved is written can be parked in a display preservation part 15 inside an enclosure case by driving only a sheet transport motor 23 and a scroll mechanism 22 with the help of a control part 24 (a recording part 9 and a deletion part 10 are not driven). In addition, it is possible to prevent a natural light from finding its way into the enclosure case by providing a light shutoff part 1-1 at the opening part 2 or a light shutoff part 1-2 at the interior. Thus the recorded information can be preserved for a long time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a board for recording / displaying information, and more particularly to a display board for recording information using a material such as a photochromic compound which can be colored / decolored by light. It is about.

[0002]

2. Description of the Related Art In recent years, in display boards such as whiteboards, it has been attempted to use a material such as a photochromic compound capable of coloring / erasing by light such as a photochromic compound. This is for drawing with a pen-type writing instrument capable of emitting ultraviolet rays on a drawing surface in which a photochromic compound is laminated on a board serving as a substrate.
As a result, it has become possible to solve the problems of the conventional display board, such as the scattering of the ink eraser as in the conventional case and the stain on clothes etc. written on the board.

[0003]

However, in the above-mentioned conventional display board, the photochromic compound is erased in response to visible light, so that the information once recorded disappears in a few hours by ordinary light. It had a problem that it would end up.

Therefore, it is an object of the present invention to utilize the advantages of a board using a photochromic compound,
It is an object of the present invention to provide a display board capable of storing recorded information for a long time.

[0005]

In order to solve the above-mentioned problems, the present invention has means for retracting a display section on which information is recorded from an opening exposed to the outside by the display section.

[0006]

According to the present invention, by the above means, it is possible to evacuate the display section in which information is recorded to the portion shielded from the outside in the housing.

[0007]

Embodiments of the present invention will now be described with reference to the accompanying drawings.

FIG. 1 is a perspective view of a display board according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along line AA 'of FIG.
Reference numeral 1 is an exterior case having an opening 2 on the front surface, 3 is a back plate of the exterior case 1, 4 is a leg portion for supporting the exterior case 1, 5 is a drawing sheet for writing information in the exterior case 1, 6
Is an intermediate panel for supporting the back surface of the drawing sheet 5, 7 and 8 are transfer rollers for transferring the drawing sheet around the intermediate panel 6 in the direction of arrow N, and 9 is the drawing sheet 5 transferred by the transfer rollers 7 and 8. A recording unit for recording information,
Reference numeral 10 denotes an erasing unit for erasing the information recorded on the drawing sheet 5.

The drawing sheet 5 contains a material such as a photochromic material which exhibits a reversible color development / erasing reaction by light. Therefore, it is possible to write information in a specific color by irradiating the drawing sheet 5 with ultraviolet rays having a specific wavelength, and it is possible to erase the information once written by irradiating it with visible light. it can.

The display board of this embodiment has a recording section 9 which emits a specific ultraviolet ray and an erasing section 10 which emits visible light.
Information is recorded on and erased from the drawing sheet 5 based on the information input from the input unit 11.

FIG. 3 is a block diagram showing a control mode for recording / erasing information and transferring the drawing sheet 5 in the display board according to the embodiment of the present invention. Reference numeral 21 denotes a display unit including the drawing sheet 5. 22 is a scroll mechanism for the drawing sheet 5 by the transfer rollers 7 and 8, and 23 is a scroll mechanism 2.
2 is a sheet transfer motor connected to the transfer roller 7, and 24 is a sheet transfer motor 23 and a recording unit 9 and an erasing unit 10 according to an instruction from the input unit 11 or input data
It is a control unit that controls.

In the display board of this embodiment constructed as described above, the sheet transfer motor 23 is driven under the control of the controller 24, and the drawing sheet 5 is transferred to the transfer roller 7.
And 8 are transferred in the direction of arrow N. At this time,
Information is recorded on the drawing sheet 5 by the recording unit 9 in accordance with an instruction from the control unit 24, and then, the desired information is displayed by being transferred to the portion of the opening 2.
In addition, it is possible to emit ultraviolet rays from the tip,
By using a pen-type recording means, it is possible to directly record information in the portion exposed in the opening 2 of the drawing sheet 5.

When erasing the written information, the erasing section 10 causes the visible light to be emitted and the scroll mechanism 22 to move the drawing sheet 5 to erase the information.
The information of the portion that has passed 0 is erased.

By the way, since natural light is visible light, if the portion of the drawing sheet 5 on which information is written is exposed in the opening 2 for an unnecessarily long time, the drawing sheet 5 is erased by natural light. Therefore, the recorded information will be lost. When it is necessary to store the information recorded in the portion exposed in the opening 2 of the drawing sheet 5, only the sheet transfer motor 23 and the scroll mechanism 22 are driven by the control unit 24 (the recording unit 9 and the erasing unit 10 are The portion in which the information to be stored is written can be saved in the display storage unit 15 inside the outer case 1.

However, even if the portion of the drawing sheet 5 on which the information is written is retreated to the display storage portion 15, if natural light leaks into the exterior case 1 through the opening 2, it becomes difficult to store the information for a long time. May be. Therefore, in the present embodiment, as shown in FIG. 4, the light shielding portion 1-1 is provided in the opening portion 2, or the light shielding portion 1 is provided inside.
-2 provides an arrow Y into the outer case 1.
It is possible to prevent natural light from entering. Either one of these light-shielding parts 1-1 and 1-2 may be provided, but if both are provided, the light-shielding effect is enhanced, and therefore both may be provided.

When a soft material such as rubber, plastic, brush or resin is used for the light shielding parts 1-1 and 1-2, abrasion of the drawing sheet due to friction with the surface of the drawing sheet 5 can be prevented. In addition, the light shielding parts 1-1 and 1-
If a charge-eliminating material or a material having a cleaner effect is used for 2, it also serves as a countermeasure against static electricity and a countermeasure against stains on the drawing sheet 5.

[0017]

As is apparent from the above description, according to the present invention, the drawing section in which information is recorded can be retracted to the display storage section in which external light is blocked, and the recorded display can be held for a long time. Possible to provide display board.

[Brief description of drawings]

FIG. 1 is a perspective view of a display board according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line A-A ′ of the display board in the same embodiment.

FIG. 3 is a block diagram of a display board in the embodiment.

FIG. 4 is an enlarged view of a light shielding portion of the display board in the embodiment.

[Explanation of symbols]

 1 Exterior Case 2 Opening 5 Drawing Sheet 9 Recording Section 10 Erasing Section 21 Display Section 22 Scroll Mechanism 23 Sheet Transfer Motor 24 Control Section

Claims (3)

[Claims] 1. A housing having an opening, a drawing sheet having a display in the housing exposed by the opening, recording means for recording information on the drawing sheet, and the display. A sheet transfer means for retracting the sheet from the opening. 2. The display board according to claim 1, wherein the drawing sheet is made of a material having a photochromic compound in its composition. 3. A display board comprising a light-shielding portion for preventing external light from entering from the opening portion to the display portion retracted by the sheet transfer means.