JP2873401B2 - Display device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device that continuously displays a fine color image.

2. Description of the Related Art Conventionally, many display devices have been known, such as those that simply display a plurality of posters or the like continuously, an electric bulletin board, a CRT, and a liquid crystal display.

[Problem to be Solved by the Invention] As such a display device, a device that simply displays a plurality of posters cannot create and display a new image and has a limited amount of information.

Next, electric bulletin boards, CRTs, and liquid crystal displays can display new images.However, electric bulletin boards always consume electricity and generate a lot of heat or cannot express fine images to display a single image. Therefore, it was not suitable for viewing nearby, and it was not possible to display a very large image on a CRT or liquid crystal display.

The present invention has a large display screen of, for example, A0 size, such that about 10 to 20 humans can easily recognize the image as a display device, and displays a fine color image using an inkjet printer. An unconventional display device that forms on a sheet and immediately displays it. By winding the display sheet displayed on this display device around a roller, the same image can be displayed again or again. It is an object to provide a display device that can be stored in a possible state.

Means for Solving the Problems The present invention relates to a continuous long display sheet that enables an image to be displayed any number of times, a printer unit that conveys the display sheet and forms a color image, and a printer including the same. A display unit that is provided upright above the unit and conveys and displays a display sheet on which a color image is formed upward from below, a sheet guide path that guides the display sheet from the printer unit to the display unit, and a display sheet. Cutting means for cutting the
A first take-up roll that takes up the display sheet after the display, a second take-up roller that takes up the display sheet taken up by the first take-up roller again, and a second take-up roller. A display device provided with a re-display sheet conveyance path for conveying a display sheet in the display unit, wherein the second take-up roller can be detached from the display device in order to store the display sheet in a re-displayable state. It is a display device provided.

[Operation] The display device according to the present invention conveys a display sheet on which a color image has been formed by the printer unit to a display unit provided upright above the printer unit. The display sheet is conveyed and displayed, and then the displayed display sheet is wound around a first take-up roller, the rear end of the display sheet is cut, and the display sheet is completely wound around the first take-up roller. When the display sheet is wound on the second winding roller and the display sheet is entirely wound on the second winding roller, the display sheet can be conveyed to the display unit for re-expression. Further, the display sheet can be stored by removing the second winding roller.

Example An example of the present invention will be described with reference to the drawings. FIG. 1 is a side sectional view of a display device according to an embodiment of the present invention, and FIG. 2 is a front view of the display device.

The display device 1 includes a printer unit 2 and a display 3
It is composed of

The printer unit 2 includes a paper 4 wound on a roll, a paper feed roller 5 and a roller 6 for feeding the paper 4, and a cutter 7.
And an inkjet printer 8 for printing a color image.

The paper feed roller 5 is rotated by a motor (not shown), and the roller 6 is rotatably provided on an opening / closing lever 9. When the opening / closing lever 9 is closed, the roller 6 comes into contact with the paper feeding roller 5.

The color image data sent to the printer is sent from an external computer (not shown).

A paper guide path 12 for guiding the paper 4 toward the display unit 3 is formed by the roller 10 and the paper guide plate 11, and a pair of transport rollers 13 a and 13 b is provided in front of the display unit 3.

Of the transport rollers 13a, 13b, the upper transport roller 13b is driven by a motor (not shown), and the lower transport roller 13b.
a is provided so as to be movable toward and away from the upper transport roller 13b.

The paper guide switching plate 14 is located in the middle of the paper guide path 12, and when opened, the paper guide path 12 is opened toward the paper stocker 15.

The display unit 3 uses a large glass plate 16 to
Printer unit 2 with A0 size display area of 88mm and 840mm width
It is provided above. Further, a belt supporting roller 18 for stretching a belt 17 along the glass plate 16, a belt driving roller 19, and a roller paired with the belt driving roller 19
20 and a plurality of belt pressing rollers 21 for pressing the belt 17 from the back side toward the glass plate 16 are provided.

The belt 17 is a flexible sheet of PET whose surface is covered with rubber.

The belt drive roller 19 is rotated by a belt drive motor 22 via a plurality of gear groups 23, and conveys the belt from the bottom to the top (in the direction of arrow A in FIG. 2) on the glass surface side.

On the back side of the display unit 3, a first take-up roller 24 for taking up the paper after displaying, and a second take-up roller 25 for re-winding the paper 4 taken up by the first take-up roller 24 are provided. Provided.

The motor 26 is a motor that drives the first winding roller 24 and the second winding roller 25.

Transmission of the drive from the motor 26 is rotatably provided on a pulley 27 provided on the motor shaft, a belt 28, a pulley 29, a gear 30 coaxial with the pulley 29, and a shaft of the pulley 29 and the gear 30. Connecting rod 31 and a gear 32 provided at another end of the connecting rod 31
And a gear 33 provided on the first winding roller 24 or a gear 34 provided on the second winding roller 25, the first winding roller 24 and the second winding roller 25 are used. The drive is switched by rotating the connecting rod 31 and shifting the gear 32 to the gear 33.
Alternatively, it is performed by connecting to the gear 34.

A paper guide plate 35, a pair of transport rollers 36a and 36b, and a paper guide plate 37 are provided below the second winding roller, and a paper transport path for redisplay is formed.

The transport roller 36b is driven by a motor (not shown).

Next, the steps from image formation to redisplay of the display device 1 will be described in order. First, when the leading end of the roll-shaped paper 4 is carried between the paper feed roller 5 and the roller 6 and the opening / closing lever 9 is closed, the paper feed roller 5 is moved. The paper is rotated and fed automatically.

At first, the paper guide switching plate 14 is closed, and the paper 4 is first guided to the transport rollers 13a and 13b. After passing through the transport rollers 13a and 13b, the passage of the leading edge of the paper is detected by a sensor (not shown), and the belt driving roller 19 is rotated.

Paper 4 transported between belt drive roller 19 and roller 20
Is transported between the glass plate 16 and the belt 17 by the rotation of the belt 17 and the roller 20.

At this time, the lower transport roller 13a is
, The upper transport roller 13b stops, and the transport roller 1
The resistance by 3a and 13b is eliminated.

The paper 4 transported between the glass plate 16 and the belt 17 is a belt
The glass plate 16 is conveyed upward from below by sliding the glass plate 16. At this time, since the belt 17 is entirely in contact with the glass plate 16 by the belt pressing roller 21, the paper 4 is pressed against the glass surface and conveyed without wrinkling.

Then, the paper 4 is discharged to the back side of the display unit 3 as the belt 17 moves.

The discharged paper 4 has its front end wound on the first winding roller 24.
Is wound around with an adhesive tape, so that an image can be displayed.

Then, a color image is formed on the paper 4 by the well-known ink jet printer 8 according to the image data given from the external computer.

The paper 4 on which the color image is displayed is sequentially conveyed and displayed. At this time, the first winding roller 24 rotates according to the motor 26 and winds the paper 4.

When a desired number of images are printed, the paper 4 is cut by the cutter 7 and the paper 4 is all wound around the first winding roller 24.

Next, the rear end of the paper 4 wound around the first winding roller 24 is wound around the second winding roller 25 with an adhesive tape.

Then, the connecting rod 31 is rotationally moved, and the second winding roller 25 is rotated.
Drive. Thus, all the paper 4 wound around the first winding roller 24 is wound around the second winding roller 25.

As a result, the leading end of the paper 4 wound up by the first take-up roller 24 is wound up by the second take-up roller 25 and is located at the outermost position, and is ready to be displayed.

Next, if the image taken up by the second take-up roller is to be displayed again, the leading end of the paper 4 is sandwiched between the carry rollers 36a and 36b. When a signal for redisplay is given, the carry roller 36b rotates.
The paper 4 is guided by the paper guide plate 35 and is transported to the transport rollers 13a and 13b.

At this time, the connecting rod 31 rotates again, the gear 32 separates from the gear 34, the second take-up roller 25 rotates easily, and the paper can be smoothly fed to the re-display.

The paper 4 to be redisplayed passes through the display unit 3 and is wrapped around the first take-up roller 24 again to perform redisplay.

Note that, after winding by the second winding roll, if there is no need to redisplay, the entire second winding roller can be removed and stored. By attaching another winding roller already stored at the position of the second winding roller, another image can be displayed again.

Here, in this embodiment, paper is used as a medium on which an image is printed, but a film-like sheet material may be used.

The attachment of the paper 4 to the first and second take-up rollers is performed by using an adhesive tape. However, the present invention is not limited to this embodiment. For example, a groove is formed in the take-up roller and the leading end of the paper is inserted into the groove. A method such as insertion and attachment may be used.

[Effects of the Invention] According to the present invention, a fine color image is formed on a display sheet by a printer unit, and the display sheet is immediately guided to and displayed on a display unit provided upright above the printer unit. In addition, the display sheet taken by the first take-up roller after the display can be taken up again by the second take-up roller and re-conveyed to the display unit, whereby the display sheet once displayed can be immediately repeated. Since it can be displayed, it is economical that the same thing is not printed again. Furthermore, the display sheet can be wound up and stored in a state in which it can be displayed again on the second winding roller, and the stored display sheet can be displayed again, which is economical.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a display device according to an embodiment of the present invention. FIG. 2 is a front view of a display device according to the embodiment of the present invention. 1 is a display device, 4 is a paper, 8 is a printer, 16 is a glass plate, 17 is a belt, 18 is a belt supporting roller, 19 is a belt driving roller, 21 is a belt pressing roller, 22 is a belt driving motor, and 24 is a belt driving motor. The first winding roller 25 is a second winding roller.

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-1-105659 (JP, A) JP-A-55-9718 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) G09F 11/15 H04N 1/00

Claims (2)

(57) [Claims] 1. A continuous and long display sheet, a printer section for conveying the display sheet and forming a color image, and a display sheet standing upright above the printer section and having a color image formed thereon is viewed from below. A display unit that conveys and displays the display sheet upward, a sheet guide path that guides the display sheet from the printer unit to the display unit, a cutting unit that cuts the display sheet; A take-up roller; a second take-up roller that takes up the display sheet taken up by the first take-up roller again; and a redisplay sheet that conveys the display sheet from the second take-up roller to the display unit. A display device comprising a transport path. 2. The display device according to claim 1, wherein the second winding roller is detachably provided from the display device.