JPS5838978Y2 - Erroneous input prevention device for data input panel - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an erroneous input prevention device for a data input panel using a pressure-sensitive variable resistance sheet.

Conventionally, in this type of device, as shown in FIG. There is a system in which the data written directly below can be entered accurately manually by pressing the part of the sheet 9 surrounded by the bank 12 with a stylus, but when performing the input operation, First, press one date, for example the letter A,
Next, when pressing the letter N, the stylus operation is to press the letter A, then release the stylus from the -tan sheet 9, jump over the embankment 12 and move it onto the letter N, and press the letter N again here. There is a need to.

However, when the number of data is larger than that of the alphabet, such as kanji, the operator unconsciously tries to slide the stylus on the sheet 9 in order to concentrate his optic nerves on searching for the data. Therefore, this has the disadvantage of becoming a hindrance and reducing input efficiency.

This idea attempts to eliminate these shortcomings.
An embodiment of this invention will be explained below with reference to the drawings.

That is, on one surface of the printed circuit board 1, a plurality of first conductors 2, 2 are arranged parallel to each other in one direction at a predetermined interval, and on the other surface of the printed circuit board 1, a plurality of first conductors 2, 2 are arranged in parallel. The second conductors 3, 3 are arranged to intersect with the first conductors 2, 2.

At the intersection of the first conductors 2, 2 and the second conductors 3, 3, annular first electrodes 4, 4 are provided on the first conductors 2, 2, and second conductors 3, 3 are provided with annular first electrodes 4, 4. A part of is led out through the through holes 5, 5 to a part surrounded by the first electrodes 4, 4 on one surface of the printed circuit board 1, and in this part, the second electrodes 6, 6 are connected to the first electrodes. 4, 4 and is electrically insulated and formed in a circular shape.

A pressure-sensitive variable resistance sheet 7 is stacked on the printed circuit board 1 in contact with the electrodes 4 and 6.

This pressure-sensitive variable resistance sheet is made by mixing a large number of silver particles in silicone rubber, for example, and when it is not pressed, the resistance value between both sides reaches several tens of megohms, and it is in the state of an insulator. However, when this is pressed, its resistance value drops from several 100Ω to several 10Q, and it becomes electrically conductive, and is already well known under the trademarks Dynacon, Chomerics, etc.

A data sheet 8 containing a large amount of input data and a transparent protective sheet 9 covering this sheet are placed on the top surface of this sheet, and between the pressure-sensitive variable resistance sheet 7 and the data sheet 8 For example, a space sheet 10 made of mylar is provided, and a pair of electrodes 4 of this sheet are provided.
, 6 are formed with through holes 11, 11, respectively.

Therefore, a gap having a thickness of 10 (t) is formed between the pressure-sensitive variable resistance sheet 7 and the data sheet 8.

In the above configuration, when the data area written on the data sheet 8 is pressed with the stylus, the protective sheet 9 and the data sheet 8 in that area are bent, and at the same time, the pressure-sensitive variable resistance sheet 7 is compressed, thereby drastically reducing the resistance of this sheet. However, the electrodes 4 and 6 that are in contact with this sheet are electrically conductive, and in this state, the data is input.

In this invention, as mentioned above, the space sheet 10 is provided between the pressure-sensitive variable resistance sheet 7 and the data sheet 8, so that the stylus can slide on the protective sheet 9 during manual data manipulation, so that the operator can allows you to focus your optic nerves on data selection and perform operations efficiently.

In addition, unintended pressing force during the operation, such as the pressing force from the part of the hand holding the stylus, may cause the space sheet 10 to
Since the data is distributed to areas where there are no electrodes, it is possible to prevent data located directly below the hand that should not be input from being erroneously entered manually.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of a conventional device, Fig. 2 is a sectional view taken along line 22 of Fig. 3, and Fig. 3 shows an embodiment of this invention. FIG. 3 is a plan view of the removed state. 1...Printed circuit board, 2, 2...1st
Conductor, 3゜3...Second conductor, 4,4...
...first electrode, 5,5...through hole,
6, 6... Second electrode, 7... Pressure-sensitive variable resistance sheet, 8... Data sheet, 9...
...Protection sheet, 10...Space sheet, 11,11...Through hole.

Claims (1)

[Scope of utility model registration request] A plurality of first conductors 2, 2 arranged in one direction on one surface of the printed circuit board 1, and a plurality of first conductors 2, 2 arranged intersecting with the first conductors 2, 2 on the other surface of the printed circuit board 1. A plurality of second conductors 3, 3 are respectively provided, and the first conductor 2
, 2 and the second conductor 3, 3, the first
A first electrode 4.4 is provided on the conductors 2, 2, and a part of the second conductor 3, 3 is led out onto one surface of the printed circuit board 1 through a through hole, and a first electrode 4.4 is provided on the conductor 2, 2. 2
electrodes 6, 6 are provided electrically insulated from the first electrodes 4, 4, and a pressure sensitive variable resistance sheet 7, a data sheet 8 and a protective sheet are provided on one surface of the printed circuit board 1. 9
A space sheet 10 is provided between the pressure-sensitive variable resistance sheet 7 and the data sheet 8, and through-holes 11, A device for preventing erroneous input on the data input panel that formed No. 11.