JPH11147391A - Electronic blackboard - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the thickness of a blackboard main body thinner, and make the whole body smaller by a method wherein a battery case box is constituted of a battery case part unit where a plurality of battery case parts such as a power source and a control substrate are integrally collected, and an armor case where these are housed, and the electrical part case box is attached to the outside of the blackboard main body. SOLUTION: For a blackboard main body 10, a base frame 12 is attached to the top of a stand 11 on the rear side f the blackboard main body 10, and a window frame 13 where a front window (a) is widely opened is supported, and on the front window (a), a writing surface S where an endless sheet 14 is bridged, is formed. In the blackboard main body 10, an optical reading device is provided by supporting with the base frame 12. On the lower outside of the base frame 12, a printer 16 and an electrical part case box 15 are attached. On the window frame 13, a long thin plate-form pen tray 17 is provided on the lower edge. When a written content is read, the endless sheet 14 is carried, and the written content on the sheet 14 is read by the optical reading device, and the signal is fed to the printer 16, and the read content is shrunk, and is recorded on a paper housed in the printer 16, and is discharged while being recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic blackboard for writing on a writing surface provided on the front side of a blackboard body by using a writing tool, and reading and writing the written contents as necessary.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 4, for example, as shown in FIG. There is a stand type in which a window frame 4 is provided and a writing surface 6 is formed by allowing a part of a writing sheet 5 stretched inside from the front window 3 to face the outside. Reference numeral 7 denotes an operation panel.
Reference numeral 8 denotes a printer, and reference numeral 9 denotes a pen tray.

[0003] Although not shown, electrical components such as a power supply and a control board are attached and supported in the electronic blackboard 2.

[0004]

However, in such a conventional electronic blackboard, since electrical components including a relatively large power source such as a power supply are provided in the blackboard main body 2, the blackboard main body 2 is accordingly moved forward and backward. However, there is a problem that the outer shape becomes thicker and the whole becomes larger.

In addition, when replacing or repairing electrical components, it is necessary to remove the large window frame 4, the writing sheet 5, and the like, and the replacement work is difficult.

[0006]

According to the present invention, there is provided an electronic blackboard having a plurality of electrical components such as a power supply 24 and a control board 25, for example, as described with reference to the following drawings. An electrical component box 15 is composed of an electrical component unit 20 in which system components are integrally integrated, and an outer case 21 that houses the electrical component unit 20, and the electrical component box 15 is attached to the outside of the blackboard main body 10.
It is characterized by the following.

According to a second aspect of the present invention, in the electronic blackboard according to the first aspect, as in an embodiment described with reference to the following drawings, for example, the outer case 21 of the electrical box 15 is connected to the electrical component. It is characterized by being provided detachably with respect to the unit 20.

Then, for example, when repairing, replacing, or checking electrical components, only the outer case 21 is removed from the electrical box 15.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external perspective view of an electronic blackboard according to the present invention.

This electronic blackboard has a rectangular flat blackboard body 10 that stands upright and is movably supported by a stand 11 with casters.

The main body of the blackboard 10 has a stand 11 on its rear side.
A base frame 12 having a rectangular frame shape is mounted thereon, and a front window 13 is supported at a front side of the base frame 12 by supporting a window frame 13 having a large opening in the front window a. A writing surface S is formed there. Further, an optical reading device is provided in the blackboard main body 10 and supported by the base frame 12.

Further, at the lower part of the base frame 12,
It comprises a printer 16 and an electrical box 15 according to the present invention. On the other hand, the window frame 13 is provided with an elongated plate-shaped pen tray 17 along the lower edge thereof.

When the above-described electronic blackboard is used, a writing tool such as a marker pen on the pen tray 17 is used to write characters and pictures on the writing surface S.

To make a copy of the written content, the power switch 35 on the electrical box 15 is turned on to convey the endless sheet 14, and the written content on the sheet 14 is read by the optical reading device. A signal from the apparatus is input to the printer 16, and while the read content is reduced and recorded on a sheet stored in the printer 16, the sheet is discharged.

On the other hand, when erasing the written contents, the writing contents are wiped off by wiping the writing surface S with an eraser (blackboard eraser) as appropriate.

In the illustrated electronic blackboard, the above-mentioned electrical component box 15 is composed of an electrical component unit 20, an outer case 21 for accommodating the electrical component unit 20, and an operation unit 22, as shown in FIG. I do.

As shown in FIG. 3, the electric component unit 20 includes a power supply 24 and a control board 25, which are electric components.
Mounting members A to E made by bending sheet metal,
A sheet metal cover F having a rectangular plate shape is provided.

In the electrical component unit 20, the mounting member A
And a mounting member B to form a horizontally long power supply storage box 30, into which the power supply 24 is inserted and mounted. The mounting member A is provided with a large number of ventilation holes 27 on its bottom surface for releasing the heat of the power supply 24. The mounting member B has a harness doorway 2 on its top surface.
8 and a mounting member C is attached by welding to the front side on which the control board 25 is mounted. The control board 25 is attached to the mounting plate portions 29 at both ends of the mounting member C and extending in the cross section L.
Screw. In addition, inside the mounting member C, another control board or the like can be mounted as needed by utilizing the space.

Further, in the electric component unit 20, the parallel mounting pieces 26 of the substantially U-shaped mounting member D are screwed to the upper left and right edges of the power supply storage box 30, as shown in FIG. The mounting member E is screwed to the rear side of the mounting member D in the drawing, and the cover F is mounted on the front side thereof. The mounting member E is formed by cutting and raising the center of the upper surface and providing a horizontally long harness entrance 31 there. And the piece 3
2 and screw through holes 33 at both ends of the upper surface.

On the other hand, the outer case 21 is made of resin, and is formed in a box shape open at the upper side. Then, the electrical component unit 20 is housed and screwed to the mounting piece 26 of the mounting member D.

The operation unit 22 includes a power switch 35
And the like, and attached to the tip of the mounting piece 26 of the mounting member D. Then, the power cord 3 connected to the power switch 35
6 is an electrical component unit 2 so as not to be an obstacle when removing the outer case 21 from the electrical component unit 20 later.
It is drawn out from the exterior case 21 to the outside of the rear through the inside of the inner case 0. The harness from the blackboard body 10 is shown in FIG.
As shown by the middle dotted line, it is connected to the control board 25 through the harness entrances 31 and 28.

Then, the electrical component box 15 having the above-described configuration is screwed to the lower portion of the base frame 12 by passing the screws 37 into the screw through holes 33 of the electrical component unit 20.

In the illustrated electronic blackboard, when the control board 25 is to be replaced or a check such as confirmation of signal line waveforms is performed, for example, when the control board 25 is out of order, the outer case 21 is removed from the electrical unit unit 20 and the control board 25 is removed. Open. In this case, simply removing the outer case 21, the operation unit 2
2 and the electrical component unit 20 remain as they are, so that the operation can be checked by operating the power switch 35 and the like.

If necessary, the screws 37 may be removed, the electrical box 15 may be removed from the blackboard main body 10, and then the outer case 21 may be removed to replace the control board 25.

When the power supply 24 is to be replaced, repaired, inspected, or the like, the electrical box 15 is removed from the blackboard body 10, the outer case 21 is removed, and the mounting member A is further removed.
E and the cover F are disassembled.

[0026]

Therefore, according to the first aspect of the present invention, instead of providing the electrical components in the main body of the blackboard as in the prior art, the electrical components are housed in the outer case of the electrical box, and are provided outside the main body of the blackboard. , The thickness of the blackboard body is reduced accordingly, and the entire body can be reduced in size.

In addition, when replacing or inspecting electrical components, it is not necessary to remove a large window frame, a writing sheet, and the like as in the related art, and the work such as repair can be easily performed.

According to the second aspect of the present invention,
Since the outer case is provided detachably with respect to the electrical unit, when replacing or inspecting electrical components, if the outer case of the electrical box is removed, the electrical components can be exposed to the outside, and as a result, The work such as replacement of electrical components can be performed more easily.

[Brief description of the drawings]

FIG. 1 is a perspective view of an electronic blackboard according to the present invention.

FIG. 2 is an exploded perspective view of an electrical box provided on the electronic blackboard.

FIG. 3 is an exploded perspective view of an electrical component unit provided in the electrical component box.

FIG. 4 is a perspective view of a conventional electronic blackboard.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Blackboard main body 15 Electric box 20 Electric part unit 21 Outer case 24 Power supply (electric parts) 25 Control board (electric parts)

Claims (2)

[Claims] 1. An electrical component box comprising a plurality of electrical components integrated with an external case for accommodating the electrical component unit, and the electrical component box is attached to the outside of the blackboard body. , Electronic blackboard. 2. The electronic blackboard according to claim 1, wherein the outer case of the electrical component box is detachably provided to the electrical component unit.