JPH08185129A - Operation display device - Google Patents

Abstract

(57) [Abstract] [Purpose] Operation display 1 with a tilt mechanism 2 whose viewing angle is variable
Foreign matter is prevented from entering the device through the gap 51 provided so as not to hit the operation panel 5. [Structure] By providing a bellows 3 that covers a gap 51 between an operation display 1 and an operation panel 5 on which the operation display 1 is provided, the operation display 1 is changed for an operator to change a viewing angle. Even if it is moved, the bellows 3 is not deformed to hinder the movement of the operation display device 1, and the state in which the gap 51 between the operation display device 1 and the operation panel 5 is covered is maintained. No foreign matter such as dust or water drops will enter the operation display device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides an operation panel as a control device for controlling a mechanical device, in particular, a switch, a variable resistor, etc. for operating the mechanical device, which are collectively arranged on an operation console, and the operation status is controlled. An operation display device in which an operation display device for displaying and inputting data for operation is provided on an operation panel, and further, an operation display device in which the viewing angle is variable by a tilt mechanism. Regarding

[0002]

2. Description of the Related Art FIG. 3 is a front view of an operation display device and an operator who operates it, and FIG. 4 is a side view of the same. In these figures, the operation display device includes an operation panel 5 provided with two operation indicators 1, an operation console 6 in which a large number of switches 61 and variable resistors 62 are arranged side by side, and a frame 4 for supporting and fixing them. The operator 100 sits and operates the chair 200 provided in front of it. The content of the operation is the operation of the switch 61 or the variable resistor 62, or the input of data from the touch panel described later of the operation display device 1, and the two operation displays of the result and the status of the device controlled by the operation. It is displayed on the vessel 1. The number of operation indicators 1 is not limited to two, but when two operation indicators 1 are provided as shown in the figure, they are generally arranged in the left and right as shown in the figure. When the operator 100 looks at these operation display devices 1, the operator looks at them obliquely from the side, as is apparent from FIG.

As is well known, the operation display 1 includes a CRT display that has been conventionally used and a liquid crystal display panel that has been widely used in recent years. In the case of a CRT display, the screen appears to shrink laterally when viewed diagonally, but the visibility is not significantly degraded. But,
In the case of a liquid crystal display panel, there is a drawback that it becomes very difficult to see when viewed from an oblique side.

FIG. 5 is a partial front view of the periphery of an operation display unit composed of a conventional liquid crystal display panel, and FIG. 6 is a sectional view taken along line BB thereof. The same members as those in FIGS. And omit duplicate explanations. In these figures, the operation display 1
Is provided with a liquid crystal display panel 11 and a transparent touch switch 12 provided on the surface thereof, and is fixed to the operation panel 5 by a mounting bracket 52.

In the configuration in which the operation display 1 is fixedly attached to the operation panel 5 as shown in these figures, for example, the operation display 1 is only one and the operator 100 can see it from the front. Although there is no problem in the case of the operation display device having such a configuration, the drawback that the visibility is not bad as described above cannot be neglected in the operation display device as viewed obliquely from the side as shown in FIG.

FIG. 7 is a partial front view of the periphery of a conventional operation display 1 adopting a structure for eliminating such a drawback, and FIG. 8 is a sectional view taken along line CC of FIG. However, the same members as those in FIG. 3 and FIG. 7 and 8, a gap 51 is provided between the operation display device 1 and the operation panel 5, and the operation display device 1 is fixed to the operation panel 5 as shown in FIG. Not in. As shown in FIG. 8, the operation indicator 1 is attached to the frame 4 on the back side via the tilt mechanism 2. The tilt mechanism 2 is schematically shown, and the frame 4
The convex member 21 is a spherical member and is fixed to the concave member 22. The concave member 22 is a member covering the convex member. The concave member 22 is rotatable with respect to the convex member 21. Actually, the operation display 1 is not fixed with such a member and faces downward due to its own weight. However, in reality, the position is maintained as long as the operator 100 does not move the operation display 1 by supporting the own weight. It is configured to

Even if the operator 100 moves the operation display unit 1, the gap 51 is set as described above so that the operator does not hit the operation panel.
Is provided. The method of the tilt mechanism 2 described above is called a bolt joint method, and there is also a tilt mechanism called a biaxial method, and either one is appropriately selected and adopted in an actual device.

[0008]

When the operation display device is installed in a dusty or dusty environment or in a bad environment where water droplets or oil droplets are present, these foreign substances are introduced from the gap 51 into the operation display device. There is a risk of breaking into. Since various devices, especially electronic circuit devices, are also housed in the operation display device, intrusion of foreign matter into the operation display device may cause failure of the device and reduce reliability. There is a problem.

An object of the present invention is to solve such a problem and to make the viewing angle of the operation display device variable in an operation display device having a tilt mechanism in which the viewing angle is variable within a certain range. The purpose is to prevent foreign matter from entering through a gap between the operation panel and the operation panel provided, and to ensure the reliability of the device even when used in a bad environment.

[0010]

In order to solve the above problems, according to the present invention, in an operation display device provided with an operation display device having a variable viewing angle of the display surface, the operation display device and this operation display device are An expandable seal mechanism is provided to cover a gap between the operation panel and the operation panel. Further, it is assumed that the sealing mechanism is a bellows, one end of the bellows is attached to the operation panel, and the other end is attached to the periphery of the operation display. Further, it is assumed that the sealing mechanism is a flexible film, and the film covers the gap between the operation display device and the operation panel.

[0011]

In the structure of the present invention, the operator can change the viewing angle by providing the expandable seal mechanism that covers the gap between the operation indicator and the operation panel on which the operation indicator is provided. When the operation indicator 1 is moved, the sealing mechanism expands and contracts following the change in the gap between the operation indicator and the operation panel, so that the state in which the gap is covered is maintained.

Also, a bellows is adopted as a sealing mechanism,
A configuration may be adopted in which one end of this bellows is attached to the operation panel and the other end is attached to the periphery of the operation display, respectively.
It is also possible to adopt a configuration in which the gap between the operation indicator and the operation panel is covered with a stretchable film.

[0013]

EXAMPLES The present invention will be described below based on examples.
FIG. 1 is a partial front view of an operation display device and its peripheral portion of an operation display device showing an embodiment of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. A common reference numeral is given to omit duplicate description. In these figures, the bellows 3 is provided so as to cover the gap 51 between the operation panel 5 and the operation display 1. As is well known, the material of the bellows 3 itself is not elastic, but its size can be changed over a wide range by the bent structure. FIG. 2 shows a diagram in which the operation display 1 is facing forward with a solid line and a diagram in which the operation display 1 is rotated slightly clockwise with a chain double-dashed line. At this time, the bellows 3 in the upper portion of FIG. It is lengthened and lengthened, and the lower part shrinks and shortens. Further, the bellows 3 on the left and right parts of FIG. 1 are slightly twisted. In any case, the bellows 3 does not restrict the movement of the operation display 1 even if the viewing angle of the operation display 1 is changed by the operation of the operator 100, and the state in which the gap 51 is covered is maintained.

Since the gap 51 is covered by the bellows 3 and the sealing action is maintained, foreign matter such as dust and water drops does not enter the operation display device through the gap 51. Therefore, there is no possibility of failure due to the intrusion of foreign matter. Thus, the bellows 3 has a function of sealing the inside of the operation display device from the outside without hindering the movement of the operation display device 1. Therefore, if it has such a function, it does not stick to the bellows 3. For example, a structure having a stretchable film such as thin rubber may be stretched around the gap 51 with some allowance. Further, even if it is made of the same material as that of the bellows 3 which is not very stretchable, the bellows 3 may have the same function as long as the bellows 3 does not have to be folded alternately. I'm not particular about it.

[0015]

As described above, according to the present invention, the expandable seal mechanism for covering the gap between the operation display and the operation panel allows foreign matter such as dust and water to enter the operation display device. In addition, there is no possibility that the device will break down due to these intrusions, and the reliability is improved. As the sealing mechanism, a structure using a bellows or a structure using a stretchable film such as rubber can be adopted to obtain the same effect as described above.

[Brief description of drawings]

FIG. 1 is a partial front view of an operation display device and its peripheral portion of an operation display device according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG. 1;

FIG. 3 is a front view of an operation display device and an operator.

FIG. 4 is a side view of FIG.

FIG. 5 is a partial front view of a conventional operation indicator and its surroundings.

6 is a sectional view taken along line BB of FIG.

FIG. 7 is a partial front view of a conventional operation indicator different from FIG. 5 and its surroundings.

FIG. 8 is a sectional view taken along line CC of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Operation display device, 11 ... Liquid crystal display panel, 12 ... Transparent touch switch, 2 ... Tilt mechanism, 3 ... Bellows (seal mechanism), 4 ... Frame, 5 ... Operation panel

Claims (3)

[Claims] 1. An operation display device having an operation display device with a variable viewing angle, wherein an expandable seal mechanism is provided for covering a gap between the operation display device and an operation panel to which the operation display device is attached. An operation display device characterized by the following. 2. The operation display device according to claim 1, wherein the sealing mechanism is a bellows, one end of the bellows is attached to the operation panel, and the other end is attached to the periphery of the operation display. . 3. The operation display device according to claim 1, wherein the sealing mechanism is a stretchable film, and the film covers a gap between the operation display device and the operation panel.