JPH0815834B2 - Portable electronic blackboard - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic blackboard used for conferences, etc., and particularly, a writing sheet is stored in such a manner that it is rolled up, and when writing an image such as a character, pull it out and read the image when it is involved. For portable electronic blackboards.

B. 2. Description of the Related Art In a conventional electronic blackboard that converts writing content written on a writing sheet into an electric signal and reproduces and copies it on a predetermined paper, the writing sheet has a two-layer structure of an inner layer sheet and an outer layer sheet, The outer layer sheet was used as a transparent writable and erasable flexible sheet, the base paper to be copied was inserted between the two layers, and characters and figures were newly added to the outer layer sheet to enable various copying. Electronic blackboard
It was publicly known in the 60-257295 gazette.

C. DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, a small-sized portable electronic blackboard using such a writing sheet has not been disclosed, and a more versatile copy has not been disclosed.

D. Means for Solving the Problems The portable electronic blackboard of the present invention is an inner layer sheet made of a transparent flexible material that is writable and erasable, and a writable and erasable transparent sheet that can be folded up and down with respect to this interior sheet A writing sheet having a double structure with an outer layer sheet made of flexible material, and one end of the writing sheet is fixed and the writing sheet is normally wound up, and the writing sheet is pulled out and rolled up. A sheet winding roller rotatably mounted on a machine stand so that the sheet can be rolled up, and a driving means for driving the sheet winding roller to roll up and carry out the drawn writing sheet. It is characterized by further comprising: an illuminating unit that projects light onto the writing sheet; and a reading sensor that is located opposite to the illuminating unit with the writing sheet interposed therebetween and that reads the light passing through the writing sheet.

E. Effect In the present invention, the writing sheet is pulled out, and in the state where the permeable base paper is inserted between the inner layer sheet and the outer layer sheet, when characters or figures are added to the outer layer sheet, erasing is possible. In addition, the inner layer sheet and the outer layer sheet can be written and erased, respectively, and various copying can be performed.

F. Embodiments The present invention will be described in detail with reference to embodiments shown in the drawings. 1 is a machine base 2
Is a writing sheet, and the writing sheet 2 is made writable and erasable, and is composed of two layers of an inner layer sheet 2'and an outer layer sheet 2 "made of transparent and flexible material. At the same time, the outer layer sheet 2 ″ is constructed so that it can be folded up and down and opened and closed by the inner layer sheet 2 ′.
A transparent base paper 3 to be copied can be inserted and positioned between the inner layer sheet 2'and the outer layer sheet 2 ". 4 is a roller for rolling up the writing sheet 2; This roller is mounted on the machine base 1 as shown in FIG.
It is rotatably mounted on a shaft 5 fixed to the roller 4, and one end of the writing sheet 2 is fixed to the roller 4, and the rotation of the roller 4 causes the roller 4 to move relative to the roller 4. Then, the writing sheet 2 is rolled and unwound through the doorway 6 formed in the machine base 1. A known recording means 7 incorporated in the roller 4 and the machine base 1
The roller 9 for feeding the recording paper 8 is a gear 11 mounted on a shaft 9'of the roller 9 as a rotation transmission means via a one-way clutch 10 and a drive source mounted on the machine base 1. The rotation is transmitted by the intermediate gear 14 mounted on the machine base 1 meshing with the gear 13 fixed to the shaft 12 'of the motor 12 and the gear 15 fixed to the roller 4. However, when the writing sheet 2 is written by the rotation of the motor 12 and driven to a position suitable for inserting the base paper 3 (driving in the direction indicated by the arrow in FIG. 3), the one-way clutch is used. By the operation of 10, the rotation of the roller 9 is blocked, and the roller 4 of the writing sheet 2 is rotated by the rotation of the motor 12 in the direction opposite to the above-mentioned direction without sending the recording paper 8 in the direction shown by the arrow in FIG. When driving in the winding direction (direction shown by the arrow in Fig. 3),
The roller 9 rotates in synchronism with the driving of the writing sheet 2 to feed the recording paper 8 in the direction shown by the arrow in FIG. Reference numeral 16 is a known reading means including an illuminating section 17 and a reading sensor section 18 incorporated in the machine base 1, and 19 is the reading means.
16 and the recording paper means 7 is used as a push button for starting, and when the push button 19 is pressed, the motor 12 is rotated and the writing sheet 2
At the same time as the roller 4 is wound on the roller 4, the reading means 16 and the recording means 7 are activated, and the base paper 3 inserted into the writing sheet 2 or the characters respectively written on the inner layer sheet 2'and the outer layer sheet 2 ", Information such as figures is read by the reading means 16, recorded on the recording paper 8 by the recording means 7, and ejected outside the machine base 1.

Further, reference numeral 20 is a push button for reversing the motor 12, and when the push button 20 is pressed, the motor 12 is rotated in the opposite direction to the above, and only the writing sheet 2 is written and the base paper 3 is pushed as described above. Can be driven (driving in the direction indicated by the arrow in FIG. 3) toward a position suitable for being inserted between the inner layer sheet 2'and the outer layer sheet 2 ".

In this embodiment, when actually writing characters or figures on the writing sheet 2, as shown in FIGS. 1 and 2, in this portable electronic blackboard, the writing surface of the writing sheet 2 is horizontal. The outer layer sheet 2 ″ can be easily turned over, and when the inner layer sheet 2 ′ and the outer layer sheet 2 ″ are inserted into the stencil sheet 3 which is transparent and already has characters or the like written thereon, the stencil sheet 3 is dropped. Easy to position and easy to handle.

Furthermore, since the base paper 3 to be inserted is transparent, characters can be written on both front and back surfaces of the writing sheet 2 and the base paper 3, and the outer layer sheet 2 ″, the base sheet 3 and the inner layer sheet 2 ′ can be easily formed. Since it can be turned over, you can easily obtain a variety of copies.

In the figure, 21 is a roll-shaped recording paper mounting shaft mounted on the machine base 1, 22 is a cutter for cutting the recording paper 8, and 23 is the other end 2 of the inner layer sheet 2 '. The fixed rods and 24 respectively indicate pushbuttons for power supply.

G. EFFECTS OF THE INVENTION According to the present invention, when actually writing a character or a figure on a writing sheet, the writing surface of the writing sheet can be made horizontal because it is a portable type, and thus the outer layer sheet is easy to turn over. In terms of shape, even when inserting a base paper that has transparency between the inner layer sheet and the outer layer sheet and on which characters and the like are already written, the base sheet does not drop and its positioning is easy and handling is easy.

In addition, since it is a transparent sheet, including the inner layer sheet, outer layer sheet, and the base paper that is inserted between the inner layer sheet and the outer layer sheet, it is possible to write characters on both the front and back sides, and it is easy to flip it. Since it can be done, it is possible to easily add and rewrite, so that various copies can be obtained easily and quickly, and the effect is great.

[Brief description of drawings]

1 is a perspective view, FIG. 2 is an explanatory view, FIG. 3 is a partial enlarged perspective view, FIG. 4 is a partial front sectional view, and FIG. FIG. 3 is a perspective view of a part of the second invention. 1 ... Machine stand, 2 ... Writing sheet, 2 '... Inner layer sheet, 2 "
Outer layer sheet, 3 ... Atom, 4 ... Roller, 5 ... Shaft, 6 ... Entrance / exit, 7 ... Recording means 8 ... Recording paper, 9 ... Feed roller for recording paper 8 ... One-way clutch, 11 ... Gear 12 ... Motor, 12 ′ ... Shaft, 13 ... Gear 14 ... Intermediate gear, 15 ... Gear, 16 ... Reading means, 17 ... Illumination section, 18 ... Read sensor section, 19 ... Push button, 20 ... Push button, 21 ...
Mounted shaft, 22 ... Cutter, 23 ... Rod, 24 ... Push button, 2 ₁ ... Writing sheet

Claims (1)

[Claims] 1. An inner layer sheet composed of a writable and erasable and transparent flexible material and an outer layer sheet composed of a writable and erasable and transparent flexible material which can be folded up and down with respect to the interior sheet. The double-sided writing sheet, and one end of the writing sheet is fixed and the writing sheet is rolled up in the normal state, and is rotated with respect to the machine base so that the writing sheet can be pulled out and rolled up. A sheet winding roller that is movably mounted, a driving unit that drives the sheet winding roller to convey a writing sheet, an illumination unit that projects light onto the writing sheet, and the writing sheet. A portable electronic blackboard, comprising: a reading sensor that is located opposite to the illumination unit with a sheet in between and that reads the light passing through the writing sheet.