JPS6089236A - Coordinate input device - Google Patents

Abstract

PURPOSE:To obtain a coordinate input device which can keep high accuracy for a long period of time by setting a dot spacer between two detection plates having resistance films, and adhering the spacer to the upper detection plate, and contacting it to the other detection plate and therefore reducing the breakage of the resistance film owing to friction. CONSTITUTION:Detection films 11 and 12 are obtained by attaching evenly resistance films 13 and 14 on an insulated substrate, and electrodes are provided at two sides of films 13 and 14 respectively. A dot spacer 15 made of an insulated material is set between detection plates 11 and 12 to have adhesion to the upper plate 11 and a contact with the plate 12 respectively. In an input mode of a pen 16 a dot spacer C is pulled right and tilts right centering on a contact point D with the plate 12. While a dot spacer E is pulled left and tilts left. When the writing pressure is applied to the plate 11 with a pen input, the spacer 15 is pulled and tilts toward the pen input point together with the plate 11. This can reduce greatly the friction produced between the detection plates and dot spacers and prevent the breakage of resistance films.

Description

[Detailed description of the invention] Industrial application field of the present invention
It is related to

Conventional configurations and their problems In general, there are coordinate manual input devices for handwriting input devices such as computers.Among these, a relatively simple device configuration is a detection plate with a resistive film (=1) and an F-note spacer. There is a method used.

Below is a description of this type of coordinate human-powered device, Figures 1 to 3.
This will be explained using figures. Detection plates 1, 2i (l) Resistive films 3, 4 are uniformly adhered on an insulating plate, and electrodes 6, 6 and 7, 8 are provided on each two sides. A screwdriver 1 and a nuveza 9 made of metal are bonded to each other to keep the detection plates 1 and 2 in an insulated state.

In the configuration described above, when writing is performed by applying pressure with the ben 1o from the detection plate 1''2, the detection plates 1 and 2 come into contact at the entry point of the ben 1o and become electrically conductive. At this time, if a constant voltage is applied between electrodes 5 and 6, the divided voltage containing Ben's X coordinate information will be applied to the electrode 5. Conversely, if a constant voltage is applied between electrodes 7 and 8, the electrode 5 will be A divided voltage including 10 Y coordinate information is obtained, and it is possible to know the coordinate position of Ben. In this type of coordinate input device, the accuracy of manual coordinates is affected by the uniformity of the resistive films 3 and 4, but when the detection plate 1 receives pressure from the ben 10, as shown in FIG. 3 is Nupesa 9
It was pressed against me, and at that contact part j! The disadvantage is that the input coordinates become less accurate as they are scratched and gradually damaged.

Figure 3 shows the conventional seat shown in Figure 2.
'' indicates the time of ben input. Since the 1'' note spacer 9 is glued to the detection plate 2 on the lower side, the detection plate 1 moves to the right at the point A where it contacts the dot spacer 9 by inputting with the pen 1o. The contact portion B is pulled to the left and is rubbed, causing damage to the resistive film 3. This was a major problem with the coordinate input device using the dot spacer from IIC.

OBJECTS OF THE INVENTION It is an object of the present invention to provide a coordinate input device that solves the problems of the prior art and prevents damage to the resistive film.

Structure of the Invention The coordinate input device of the present invention consists of two detection plates each having a resistive film and a dot spacer sandwiched between the two detection plates. This configuration prevents damage to the detection plate due to pen input.

Description of examples An embodiment of the present invention will be described with reference to the accompanying drawings.

In FIGS. 4 and 5, the detection plates 11 and 12 have uniform resistive films 13 and 14 attached to an insulating plate, and the same two sides as shown in FIG. electrodes are provided. The dot spacer 15 is made of an insulating material, and is provided between two detection plates 11 and 12, and is glued to the upper detection plate 11 and brought into contact with the other detection plate 12 as shown in the figure. .

Here, as shown in FIG. 5, when inputting with the pen 16, the dot spacer C is pulled to the right and tilts to the right at the point of contact with the detection plate 12. Further, the F note base E is pulled to the left and tilts to the left about the contact point F with the detection plate 12.

As described above, in the coordinate human power device according to the embodiment of the present invention, when writing pressure is applied to the upper detection plate 11 due to pen input, the V-notonuvezer 15 is pulled and tilted together with the detection plate 11 in the direction of the pen power point. Therefore, the friction between the conventional detection plate and the 1'', 1-spacer can be significantly reduced.

Effects of the Invention As described above, in the coordinate input device of the present invention, damage to the resistance film due to friction between the resistance film of the detection plate and the dot spacer is greatly reduced by bonding the door spacer to the detection plates on three sides. As a result, the accuracy of the coordinate input device can be maintained for a long period of time, which is highly effective in practical use.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing the configuration of a conventional coordinate input device, Fig. 2 is a front sectional view thereof, Fig. 3 is a front sectional view of the same when inputting with a pen, and Fig. 4 is an embodiment of the present invention. FIG. 5 is a front sectional view of a coordinate input device showing an example, and FIG. 5 is a front sectional view when using the pen manually. 11.12...Detection plate, 13.14...
-Resistive film, 15...Dragon 1-Spacer. Name of agent: Patent attorney Toshio Nakao 11 or 1 person Figure 1 Figure 2

Claims (1)

[Claims] It consists of two detection plates having a resistive film and a dosoto spacer sandwiched between the 22 detection plates.The driver 1 Nubesa is glued to the upper detection element 4 and brought into contact with the other detection plate. coordinate input wave j'l', n