JPS61148522A - Vertical coordinate input device - Google Patents

Abstract

PURPOSE:To constitute a titled device so that a malfunction is not executed by an unnecessary vibration of the gravity direction, and also to cause no input failure by fixing a face plate with an external frame, etc. to both right and left end side center parts through a supporting member, and forming the supporting member by an elastic body which can be deviated in the horizontal direction. CONSTITUTION:A supporting member 4 for supporting a face plate 6 is supported and fixed by a mounting bracket 2 of an external frame 1 and absorbs a vibration of the gravity direction, therefore, even if a base on which a personal computer is loaded, etc. are vibrated unnecessarily, there is no possibility that a malfunction occurs. Also, the face plate 6 is supported and fixed at one point of the right and left both side center parts, respectively, of its face plate 6 by the supporting member 4, and also the supporting member 4 is formed by an elastic body so that only the pressing force can be fetched effectively in the horizontal direction, therefore, a propagation of the pressing force in the lower part of the face plate 6 is weak, there is no possibility that an input failure is incurred, and a coordinate position can be executed exactly with a high accuracy.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to a pressure sensor used when inputting position information, items displayed on a panel, handwritten characters, figures, etc. into electronic equipment such as word processors and personal computers. The present invention relates to a detection type coordinate input device, and more specifically, to improving the reliability of such a coordinate input device.

(Prior Art) In recent years, personal computers, word processors, and the like have become commonplace in daily life, and keyboards are widely used to input data and the like into these devices. This keyboard is provided with a large number of keys on which various characters are displayed, and an operator inputs data by pressing and operating these keys.

However, the keys on this keyboard are not normally arranged in a regular alphabetical order, but are arranged irregularly depending on the frequency of use, so operating them requires a certain degree of skill. Furthermore, it was not possible to input figures, etc.

Therefore, in order to make this operation easier even for beginners, a coordinate input system has been proposed that allows characters written by a human hand to be read and input as they are, and also allows input of figures and the like.

This coordinate input device consists of a face plate with pressure detectors installed at the four corners of the back side, etc. When characters, six shapes, etc. are drawn on the face plate, output signals are sent to each pressure detector according to the characters, shapes, etc. This output detects the position of the pressing point on the face plate, and the data such as characters and figures can be input into a personal computer or the like.

By the way, with this coordinate input device, it is difficult to touch the surface of the table on which the coordinate input device is installed, such as a desk, etc.
If the table shakes and vibrates due to some other cause, this vibration may propagate to the pressure detector and cause unnecessary electrical signals to be input. In particular, for the type of coordinate input 1iW (hereinafter referred to as vertical coordinate input device) that is installed with the face plate upright, when drawing characters, 51WI, etc. on the screen, the direction of force applied to the face plate is due to gravity. The direction is approximately perpendicular to the face plate (hereinafter referred to as the horizontal direction), but if the weight of the display board is not properly supported, the blurring of the face plate will cause vibrations in the horizontal direction, causing malfunctions such as unnecessary electrical signals being input. There is a risk.

For this purpose, for example, as shown in Fig. 5, the four corners of the face WiC are fitted into the mounting brackets attached to the top and bottom of both sides of the outer frame a to support and fix it from the horizontal direction, and the mounting brackets of the face plate C are used to attach the mounting brackets. It has been proposed that a pressure detection device 11d is attached near the exposed portion.

(Problem to be Solved) However, in the vertical coordinate input device with the face plate C attached in this way, as shown in Fig. 6, the mounting brackets on the lower side of the four corners of the face plate C are Since the part supported and fixed to the front plate C strongly presses the bottom part e of the mounting bracket with its own weight, even if the face plate C is pressed in the horizontal direction, the pressure will not propagate to the pressure detection Ild on the lower side. is weak and prone to input errors.

As described above, in the conventional type my coordinate input device, it is difficult to properly support the weight of the face plate and to effectively extract only the pressing force in the horizontal direction to the face plate.

An object of the present invention is to provide a highly reliable vertical coordinate input device that does not malfunction due to unnecessary vibrations in the direction of gravity and does not cause insertion failure.

[Means for solving problems]

That is, in order to input coordinates, the present invention provides a vertical coordinate input device in which a face plate with a pressure detector attached to the back side is installed, and a substantially U-shaped support member having elastic force is placed on the left and right sides of the face plate. In addition to being fitted on both sides, the central part of the support member is supported and fixed to an outer frame, etc., and the weight of the face plate is supported and fixed in one place on each side from the horizontal direction through the support member. Therefore, there is no fear that a force in the direction of gravity acts on the lower part of the face plate and the horizontal displacement operation is caused, and the pressing force along the horizontal direction is accurately output to the pressure detector. , the support member elastically absorbs the vertical movement along the direction of gravity, thereby preventing unnecessary horizontal vibrations from occurring due to this, and thereby 1IIl! 1
In addition to preventing the occurrence of errors, there are no input errors and reliability is enhanced.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows a vertical type S! according to the present invention. A keyaki input device is attached to a personal computer, and this vertical coordinate input device has a mounting bracket 2 attached to the inner wall surface of an outer frame 1.
, a support member 4 having an engaging portion 3 on the rear surface of the central portion, and a face plate 6 and the like disposed between the outer frame 1 and the CRT 5 by means of the support member 4.

The outer frame 1 is attached to the front side of the casing body 1, and as shown in the second factor, the central part has a large entrance so that the operator can see the 11 sides of the CRT 5 from the outside through the face plate 6. ing.

A pair of mounting brackets 2 are installed on the inner wall surface of both ends of this outer frame 1.
is installed.

The mounting bracket 2 is made of a material having a certain strength, and is firmly attached to the outer frame 1 so as to be able to sufficiently withstand the weight of the surface @6.

As shown in FIG. 3, this mounting bracket 2 has a protrusion 2a formed on the center side, which fits into the fitting part 3 of the support member 4, and the support member 4 The surface @6 is fixed with respect to the direction of gravity.

The support member 4 is in the shape of a leaf spring having an elastic body so as to be able to shift the face plate 6 along the horizontal direction, and supports the face plate 6 at one point from the horizontal direction at the center of both sides of the face plate 6. It is made of a material with high strength and is formed into a substantially U-shape. The fitting part 3 of the support member 4 is formed with an insertion hole that exactly matches the size of the protrusion 2a of the mounting bracket 2, so that the support member 4 can be fitted and fixed into the mounting bracket 2 without loosening. It is now possible to do so.

The face plate 6 is used by the operator to draw characters, figures, etc.
The desired data etc. are selected from among the data displayed on the T51i surface and input by pressing the button. It is made of rectangular glass.

Pressure detectors 8 made of strain gauges, piezoelectric elements, etc. are attached to the four corners of the back side of this face plate 6. The lower part 6a (see Fig. 4) side is also accurately shifted and moved in response to the horizontal pressing force without being affected by the pressure, and the pressing force is propagated to the pressure detector 8.
The support member 4, the mounting fittings 2, etc. absorb unnecessary vibrations in the direction of gravity to prevent malfunctions from occurring. In addition, when attaching this face plate 6 to the outer frame 1, fit the support members 4 from both left and right sides of this face plate 6, and attach the fitting member 3 while sliding this support member 4 in the left and right direction along the face plate 6. It is designed to fit onto the protrusion 2a of gold R2.

Therefore, if the vertical coordinate input device according to this embodiment is used, the support member 4 supporting the face plate 6 is supported and fixed to the mounting bracket 2 of the outer frame 1 and absorbs vibrations in the direction of gravity. There is no risk of malfunction even if the stand (circuit) etc. on which it is mounted vibrates unnecessarily. Furthermore, if the vertical coordinate input device according to this embodiment is used, the plane ff1
6 is supported and fixed by a supporting member 4 at one point on each of the left and right center portions of the face plate 6', and the supporting member 4 is formed of an elastic body so that only the pressing force can be effectively taken out in the horizontal direction. , the propagation of the pressing force at the lower part of the plate surface 6 is weak, and there is no risk of input failure, and a high coordinate position of 11 degrees can be reliably detected.

Further, if the coordinate input device according to this embodiment is used, the support member 4 fitted into the face plate 6 can be easily attached to the outer frame 1 by sliding it laterally along the face plate 6.

In the vertical coordinate input device of the present invention, the means for attaching the face plate to the outer frame etc. is not particularly limited to the above-mentioned method. Of course, it is also possible to attach it to a frame or the like.

〔effect〕

As described above, vertical coordinate input 1 according to the present invention
When using ifiE, the face plate is fixed to the outer frame etc. at the center of both left and right ends through support members, and since the support members are made of an elastic body that can be shifted in the horizontal direction, the face plate cannot be moved by gravity. It can protect against directional vibrations and
In response to horizontal pressing force, the lower part of the face plate is also reliably displaced, and the pressing force is transmitted to the pressure detector to prevent entry defects, and [F
There is no need to make one operation, and accuracy and reliability are significantly improved.

[Brief explanation of drawings]

FIG. 1 is a schematic longitudinal cross-sectional view showing a vertical coordinate input device according to the present invention, FIG. 2 is an explanatory view showing the operation of attaching the elastic support member to the mounting bracket according to the present invention, and the third factor is explained by the present invention. FIG. 4 is an explanatory diagram showing the effect of the pressing force on the face plate according to this invention, and FIG. 5 is a schematic perspective view showing the elastic support member and mounting fittings. FIG. An explanatory diagram showing the state, FIG. 6 is a sectional view taken along the line A-A in FIG. 5. DESCRIPTION OF SYMBOLS 1... Outer frame, 2... Mounting bracket, 3... Fitting part, 4... Support member, 5... CRT. 6... Face plate, 8... Pressure detector. Figure 1 Figure 2 Figure 3 Figure 4-

Claims (1)

[Scope of Claims] 1. In a vertical coordinate input device in which a face plate with a pressure detector is installed on the back side for inputting coordinates, a substantially U-shaped support member having an elastic force is attached to the face plate. A vertical coordinate input device, characterized in that the support member is fitted on both left and right sides of the support member, and the center portion of the support member is supported and fixed to an outer frame or the like.