JP2637936B2 - Electronic blackboard with automatic eraser - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic blackboard with an automatic erasing device, and more particularly to an electronic blackboard with an automatic erasing device having a movable / rotatable storage surface.

[0002]

2. Description of the Related Art An example of an electronic blackboard to which an automatic erasing device according to the prior art is added is a eraser 2 which is fixedly in contact with a moving writing surface 21 as shown in FIG.
2 (for example, an electronic blackboard with a character erasing device disclosed in JP-A-4-348997) and a method of pressing a rotary eraser against the writing surface 21 (for example, JP-A-61-9071). The electronic blackboard device shown in FIG. In these electronic blackboards with an automatic erasing device, characters and drawings written on the writing surface are erased by pressing and rubbing the eraser against the writing surface 21 that is moved by the electric motor, and the user can use it after use. The purpose of the present invention is to reduce the work of erasing, and also to protect confidentiality so that the written information is not leaked due to forgetting to erase.

[0003]

In an electronic blackboard with an automatic erasing device according to the prior art, an eraser generated when erasing a writing surface adheres to an eraser, and the initial erase performance is improved over a long period of time. There was a problem that it was difficult to maintain.

SUMMARY OF THE INVENTION An object of the present invention is to provide an electronic blackboard with an automatic erasing device that can always remove erased scum in order to solve such a problem and maintain a constant erasing performance for a long period of time. is there.

[0005]

According to the present invention, there is provided an electronic blackboard with an automatic erasing device, comprising: a rotary eraser having a material capable of erasing documents and drawings written on a writing surface; A rotary eraser removing brush that is always in contact with the eraser is arranged near the writing surface, and the eraser can be moved to a contact or non-contact position with respect to the writing surface. By operating the erase switch, the writing surface and the eraser are brought into contact with each other, and the brush of the eraser and the eraser removal brush are rotated by the electric motor of the rotating power source of the writing surface, and the writing surface and the eraser are removed. By sliding the eraser, eraser and eraser removal brush in opposite directions, the writing surface can be erased and the eraser attached to the eraser can be removed.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is a structural diagram showing the configuration of one embodiment of the present invention. The writing surface 1 is a manual writing surface of the endless sheet supported by the rollers 2 and 3. The rollers 2 and 3 are rotated by an electric motor (not shown) to write the writing surface 1.
Move and rotate.

Here, the characters and images on the writing surface 1 are
A method for automatically erasing will be described. First, the erasing unit 5
Is a polyimide resin fiber (for example, made of DuPont) having, for example, a hard bending strength for removing erased scraps on the erase drum 1 and an erase drum 7 of a eraser for erasing the writing surface 1. (NYLON) brushes on the surface of the brush 8, and each brush is interlocked with a gear. The material to be stuck on the erasing drum 7 is, for example, hair or acrylic resin, or a felt or cloth mixed with them, which can easily erase a document or drawing in which the water-based ink is written on the writing surface 1. is there.

As an actual operation, by operating an erasing switch not shown in the drawing, the erasing drum 7 comes into contact with the writing surface 1, and the intermediate gear 6 is fed to the feed roller fixed to the rotating roller 3. The erasing unit 5 is moved toward the writing surface by electric power (not shown) so as to mesh with the gear 4. As a result, the surface of the writing surface 1, the eraser 3 or eraser on the erasing drum 7, and the eraser removal brush 8 slide in opposite directions, and the writing surface 1
The above-described document / drawing is erased, and the eraser residue removal brush 8 removes eraser residues attached to the eraser.

Further, if the writing area 1 is stationary and the area that is exposed to the front is one page, if the erase switch is not turned off in the middle of the page, erasure leakage can be prevented.

[0010]

As described above, according to the present invention, what has been manually erased by the user himself / herself after writing on the writing surface can be automatically erased. Since the structure is such that erased debris adhering to the material is always removed, there is an effect that stable erase performance can be maintained for a long time.

[Brief description of the drawings]

FIG. 1 is a structural diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing the principle of an electronic blackboard to which an automatic erasing device according to a conventional technique is added.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Writing surface 2, 3 Roller 4 Feed gear 5 Erasure unit 6 Intermediate gear 7 Erasure drum 8 Eraser removal brush 22 Character eraser

Claims (3)

(57) [Claims] In an electronic blackboard, the end faces of a brush are aligned in a cylindrical shape, and a first end is attached to one end of the brush.
An eraser scrap removing brush provided with a gear of the above, an erasing drum having a second gear provided at one end and a eraser attached to the surface,
An erasing unit having an intermediate gear provided between the first and second gears; and an endless sheet constituting a writing surface between two rollers, wherein a feed gear is provided on one of the rollers. When performing automatic erasing on the endless sheet, the erasing unit and the blackboard block are meshed with the intermediate gear and the feed gear, and the roller is fixed with the feed gear. An electronic blackboard with an automatic erasing device, wherein the electronic blackboard and the erasing drum are in parallel contact with each other. 2. An electronic blackboard with an automatic erasing device according to claim 1, wherein said brush for removing scum is made of polyimide resin. 3. The electronic blackboard with an automatic erasing device according to claim 1, wherein said eraser is made of hair, acrylic resin, or a felt or cloth in which hair and acrylic resin are mixed.