JP2000006582A - Electronic blackboard - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the using handiness by a method wherein the carrying speed of an endless writing sheet which is provided by stretching it between a plurality of rollers in the blackboard main body, freely selectable for an electronic blackboard. SOLUTION: On a control substrate 30, together with a main control unit 31 which controls the overall driving such as a sheet driving motor 29, an optical reading device 14 and a printer 18, a control section A in which a program for a first sheet carrying mode is stored so that the sheet driving motor, the optical reading device and the printer may be driven at respective fixed standard speeds, and a control section B in which a program for a second sheet carrying mode is stored so that they may be driven at half speeds of the standard speeds, are provided. In addition, on the control substrate 30, a switch 35 which switches the sheet carrying modes to either one of them is provided. Then, at the time of usage, a preferable sheet carrying mode is selected by operating the switch 35 in advance.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a writing surface formed by a part of a writing sheet stretched out from a front window of a main body of a blackboard facing the outside, and writing is performed on the writing surface by using a writing implement. The present invention relates to an electronic blackboard for reading and writing the contents of writing as necessary.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 4, an endless writing sheet 5 is placed between a plurality of rollers 1 to 4 which are supported upright on a blackboard body of this kind, as shown in FIG. In some cases, the front side of the sheet 5 in the drawing is exposed from the large front window of the blackboard body to the outside, and this is used as a writing surface 6.

[0003] When used, characters, pictures and the like are written on the writing surface 6 using a writing implement such as a marker pen. To make a copy of the written contents, the roller 1 is driven and the other rollers 2 to 4 are rotated to write the writing sheet 5.
While the paper is being conveyed, the written content on the writing surface 6 is read by an optical reading device (not shown) and recorded on paper by a printer.

By the way, conventionally, using the copy function of such an electronic blackboard, a manuscript such as a document or a drawing related to the written contents is pasted on the writing surface 6 with an adhesive tape to make a copy together. Sometimes.

[0005] However, when such a pasting copy is performed, if the conveying speed of the writing sheet 5 is too high, if the document turns around the outer circumference of a roller having a particularly small diameter, the curvature becomes large, so that the document comes off from the writing sheet 5. In some cases, the peeled original may be caught in the main body of the blackboard and torn.

Therefore, conventionally, in the electronic blackboard as described above, the writing sheet 5 is always conveyed at a relatively slow constant speed so that a problem such as peeling of the original does not occur when using the pasted copy. ing.

[0007]

However, in such a conventional electronic blackboard, the writing sheet 5 can always be conveyed only at a constant slow speed without any choice, so that when using other than pasting and copying, for example, There has been a problem that the usability is poor, for example, the copying speed is slowed down even when normal copying is performed in order to save the written contents on the writing surface 6.

[0008]

Therefore, according to the first aspect of the present invention, a plurality of rollers 20 to 2 are provided in a blackboard main body 10 as in an embodiment described with reference to the following drawings.
An endless writing sheet 15 is stretched between the three, and a part of the sheet 15 is exposed from the front window 13a of the blackboard main body 10 to form a writing surface S, and writing is performed on the writing surface S using a writing implement. When copying the written content, the electronic blackboard reads the written content on the writing surface S and records it on paper while rotating the rollers 20 to 23 to convey the writing sheet 15. ,
A plurality of sheet conveyance modes are provided, and the sheet conveyance modes can be selectively used.

Then, one of a plurality of sheet transport modes is selected in advance, and at the time of use, the rollers 20 to 23 are rotated based on the selected sheet transport mode to transport the writing sheet 15 at a desired speed.

According to a second aspect of the present invention, in the electronic blackboard according to the first aspect, the sheet transport mode can be selectively used by a dip switch as in an embodiment described with reference to the following drawings. It is characterized by that.

The dip switch 35 is operated in advance to select one of a plurality of sheet transport modes.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is an external perspective view of the electronic blackboard according to the present invention, and FIG. 3 is a schematic configuration diagram showing the internal mechanism of the electronic blackboard as viewed from above.

This electronic blackboard has a horizontally long flat blackboard body 1.
0 is movably supported by a stand 11 with casters.

As shown in FIG. 3, the blackboard main body 10 has a base frame 1 formed in a rectangular shape with a plurality of square pipes on the rear side.
2 and the whole is supported by its base frame 12.
A window frame 13 having a large front window 13a is attached to the front side of the base frame 12.

As shown in FIG. 2, the blackboard main body 10 is provided with an operation panel 16 provided with a copy switch or the like on one side edge of the window frame 13, and is elongated along the lower edge of the window frame 13. A pen tray 17 is provided. On the other hand, a printer 18 is mounted below the base frame.

As shown in FIG. 3, the blackboard main body 10 includes a driving roller 20 and a driven roller 21 on both right and left sides of the inside thereof.
23 are provided upright, and the roller shafts are rotatably supported by upper and lower frames (not shown). Rollers 20 and 21
In between, a back plate 24 is provided supported by the upper and lower frames.
Further, an endless writing sheet 15 is stretched between the rollers 20 to 23 and backed by a back plate 24 so that the front side is a writing surface S.
And A sheet drive motor 29 is provided beside the lower end of the drive shaft of the drive roller 20.

Further, an optical reader 14 is provided in the blackboard main body 10 behind the writing sheet 15. The optical reader 14 includes a fluorescent lamp 25, a mirror 26, a lens 27,
It is composed of a CCD 28 or the like.

When the 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.

When a copy of the written contents is to be made, a copy switch on the operation panel 16 is operated to drive the sheet drive motor 29 to rotate the drive roller 20, and
The writing sheet 1 is rotated while the driven rollers 21 to 23 are driven to rotate.
5 is conveyed. Then, on the sheet S of the sheet 15,
Light is emitted from a fluorescent lamp 25 of the optical reading device 14, and the reflected light is reflected by a mirror 26.
An image is formed on the image 28 and the written content is read. Then, the signal from the optical reading device 14 is input to the printer 18, and the recorded content is discharged while reducing the read content and recording the reduced content on the paper stored in the printer 18.

On the other hand, when erasing the written contents, the writing surface S is wiped with a proper eraser on the pen tray 17 to erase the written contents. When a new writing operation is performed without erasing the previous writing contents, the sheet feed key or the return key on the operation panel 16 is operated to write the writing sheet 15.
Is fed in the forward and reverse directions as needed to feed out a sheet surface on which nothing is written.

As shown in FIG. 3, a control board indicated by reference numeral 30 is attached to the rear side of the base frame 12 on the illustrated electronic blackboard.

As shown in FIG. 1, the control board 30 is connected to the operation panel 16, the optical reading device 14, the sheet drive motor 29, the printer 18 and the like to control the overall drive. Is provided.

The control board 30 includes a main control unit 3
1, a first driving motor 29, an optical reading device 14, and a printer 18 are driven at a constant standard speed.
Control unit A storing a control program for the sheet transport mode
To drive the same sheet drive motor 29, optical reading device 14, and printer 18 at half the standard speed.
A control unit B storing a program for the sheet transport mode is provided.

Further, on the left side of the main control section 31 in the figure, a changeover switch 35 for switching the sheet conveyance mode to one of the modes is provided. As the changeover switch 35, for example, a dip switch is used.

If the use of the pasted copy as described above is not considered when the illustrated electronic blackboard is initially set, the dip switch 35 is turned off in advance to select the first sheet transport mode. On the other hand, when the use of pasting copy is considered, the dip switch 35 is turned on and the second sheet transport mode is selected.

Thereafter, when the power is turned on during use,
The main control section 31 detects the ON / OFF of the dip switch 35. If the DIP switch 35 is off, the control program is read from the control section A and the setting mode is set to the first sheet transport mode.

When the copy switch is operated,
The main controller 31 controls the driving of the sheet drive motor 29 based on the first sheet transport mode,
23, the writing sheet 15 is conveyed at a constant standard speed. Similarly, the optical reading device 14 is driven at the standard speed to read the written contents on the writing surface S, and the printer 18 is driven at the standard speed. To record the read contents on paper. In addition,
Similarly, when the sheet feed key or its return key is operated, the writing sheet 15 is conveyed at a constant standard speed.

On the other hand, when the dip switch 35 is turned on when the power is turned on, the control program is read from the control section B by the main control section 31 and the setting mode is set to the second sheet transport mode.

When the copy switch is operated in the same manner for pasting and copying an original, for example, the drive of the sheet drive motor 29 is controlled by the main control section 31 based on the second sheet transport mode, and the rollers 20 to 23 are controlled. Is rotated at half the standard speed to convey the writing sheet 15, and similarly, the optical reading device 14 is driven at half the standard speed to drive the original sheet pasted on the writing surface S. The contents of the original are read, and the read contents are recorded on a sheet by driving the printer 18 at half the standard speed.

Similarly, when the copy switch is operated for normal copying of the written contents or the sheet feed key or the return key is operated, the writing sheet 15 is similarly moved at a speed half as low as the standard speed. Transport.

By the way, in the above-mentioned example, two sheet transport modes are set. However, it is needless to say that three or more sheet transport modes can be set and the sheet transport mode can be selectively used.

In the above-described example, the writing sheet 15 is stretched between the four rollers using four rollers.
Two or more, or three or five or more rollers may be used to spread the writing sheet.

[0033]

Therefore, according to the first aspect of the present invention, a desired sheet conveyance mode can be selected and used from among a plurality of sheet conveyance modes so that the writing sheet conveyance speed can be freely selected. Further, the usability can be improved as compared with the related art in which there is no choice in the sheet conveying speed.

According to the second aspect of the present invention,
Since the sheet transport mode can be selectively used by using the dip switch, a desired sheet transport mode can be easily selected. Further, every time the power is turned on, it is possible to eliminate the trouble of turning on the switch again to select the sheet transport mode.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an electronic blackboard according to the present invention.

FIG. 2 is an external perspective view of the electronic blackboard.

FIG. 3 is a schematic configuration diagram showing an internal mechanism of the electronic blackboard as viewed from above.

FIG. 4 is a perspective view showing a state in which a writing sheet provided on a conventional electronic blackboard is stretched over a plurality of rollers.

[Explanation of symbols]

 10 Blackboard body 13a Front window 15 Writing sheet 20-23 Roller 35 Dip switch S Writing surface

Claims (2)

[Claims] An endless writing sheet is stretched between a plurality of rollers in a blackboard body, and a part of the sheet is exposed from a front window of the blackboard body to form a writing surface, and the writing surface is formed on the writing surface. When writing using a writing instrument and copying the written content, an electronic blackboard that reads the written content on the writing surface and records it on paper while rotating the rollers to convey the writing sheet. An electronic blackboard having a plurality of sheet transport modes, which can be selectively used. 2. The electronic blackboard according to claim 1, wherein said sheet conveyance mode can be selectively used by a dip switch.