JPH0122188Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a device in which a large number of various pushbutton switches are provided on an operation panel in order to provide necessary control operations to an electric control circuit, and the stroke of the pushbutton portion of the pushbutton switch is The present invention relates to an improvement in an operation panel that is small but free from malfunctions.

The operation panel of the electrical control equipment (hereinafter simply referred to as the panel) incorporates electrical equipment such as a count value display device, an indicator light, various push button switches for positioning and program setting, and the panel surface is made of synthetic resin for dustproofing and moistureproofing. A system has already been proposed in which the pushbutton switch can be operated by pressing a sheet from the sheet using symbols displayed on the sheet (see Japanese Patent Publication No. 56-21233).

By the way, panel 1 (see Figures 2, 3, and 4) is
It is mainly made of aluminum, and its thickness needs to be, for example, about 2 m/m from the viewpoint of strength.
Furthermore, the electric control device 2 (see FIG. 1) needs to be made as small as possible. From this point of view, many types of pushbutton switches are used that are as compact as possible, and when arranging them, it is sufficient that they are spaced apart so that each switch can be pressed with a fingertip. The push button switch 3 is of the form shown in Figures 3 and 4, and although the internal structure of the switch 3 is not shown, the vertical stroke of the push button portion 30 is only 0.8 m. Even at a short distance of /m, a sufficient feeling of pressing operation can be obtained, and the pressing operation can be performed easily. The size of the switch body 3 currently has an outer diameter about the size of a fingertip, so if the required number of such switches 3 are mounted closely on the board 5, Although this is the smallest array configuration, it is necessary to provide a synthetic resin sheet 4 for dustproofing and moistureproofing on the group of switches 3, 3, etc. installed in such an array. It is also necessary to prevent adjacent pushbuttons from malfunctioning when the individual pushbuttons 30 are pressed.

For this reason, conventionally, as shown in FIG. 4, the push button switches 3, 3, etc. have their respective gaps made somewhat larger so that the upper part of the body of each switch 3 can penetrate into the through hole 10 of the panel 1. In this way, the upper surface of the push button portion 30' is assembled into contact with the back side of the sheet 4. This is because the stroke of the push button 30' is performed within the through hole 10, so even if the pressing operation is performed from above the sheet 4, the sheet 4 is moved within the through hole 10.
Since only a portion needs to be bent, the bending of the sheet 4 does not extend to other adjacent pushbuttons 30', and therefore no malfunction occurs. However, if the distance between the individual switches 3 is increased somewhat, the arrangement area becomes vast when a large number of switches 3 are provided, which is not practical as it goes against the miniaturization of electrical equipment.

What if the main bodies of the switches 3, 3, etc. in FIG. do not exist as individual through holes 10 because their parts overlap with each other, and because there is no part that restricts the bending of the sheet 4 pasted on the panel 1, one pushbutton 30' is connected to the sheet. When pressed from above 4, the bending of the sheet 4 will cause the other push button 3 to bend.
0' may also operate, which inevitably causes malfunction.

From this point of view, this invention involves making cut-out holes in a panel large enough to accommodate a group of push-button switches, and inserting a thin plate with a thickness equivalent to the stroke of the push-buttons of the push-button switches into the holes. Fit the thin plate so that its surface is flush with the surface of the panel, make a through hole in the thin plate into which the push button portions of the various push button switches are loosely fitted, and insert the push button portions into the through hole. The various push button switches are arranged and mounted on a board so that their surfaces match the surface of the thin plate and the bodies of the push buttons are placed close to each other or in close contact with each other, and the board is mounted on the panel and the various push button switches are pressed. The button surface is made to coincide with the panel surface, and a sheet-like member is attached to the panel surface from which the functions of the various push button switches described above can be read. Although the sheet members on the panel can be arranged in a minimum area, the bending portion of the sheet member on the panel is limited by the thin plate to the hole in which the push button part fits. This made it possible to create a practically superior operation panel for electrical control equipment without affecting the bending of the push buttons.

In the embodiments shown in Figures 1, 2, and 3 of the accompanying drawings, the electrical control equipment has a lid that also serves as a lid on the top surface of the main body 2, which incorporates various electrical components and electrical circuits that connect them, as shown in Figure 1. Although a configuration in which the operation panel 1 can be opened and closed using a hinge 11 has been shown, it goes without saying that the purpose of this invention is not limited to devices of this type.

The operation panel 1 is made of aluminum and has a thickness of about 2 m/m, for example, and has a cutout hole 12 formed therein to fit a group of push button switches 3, 3, . . . as shown in Fig. 2. There is. The group of push button switches 3, 3... are mainly for setting programs to give sequence operations to various electrical devices connected to the connector 20 of the main body 2, but the purpose of this invention is to Needless to say, it is not limited.

Adjacent to this cutout hole 12, a cutout hole 13 for indicating the operation of the push button switches 3, 3, etc. is also provided. A detailed explanation will be omitted here.

As shown in FIG. 3, the pushbutton switch 3 has a cylindrical main body about the size of a fingertip, and a pushbutton part 30 with a diameter one step smaller than the main body is provided on the top surface of the pushbutton switch 3, and the pushbutton switch 3 has a spring force provided inside the main body. It is provided so that it always protrudes at a specific height. Its protruding height is only 0.8 m/m from the top of the main body.

The required number of pushbutton switches 3 (in this example
(32 pieces) are arranged and mounted on the board 5 so that their bodies are in contact with each other, and this arrangement creates a through hole 5 into which the push button part 30 of each switch 3 is loosely fitted.
A thin plate 50 with holes 1, 51, . . . is attached on the substrate 5.

This thin plate 50 has a thickness equal to or thinner than the stroke of the push button 30, that is, the height at which the push button portion 30 projects above the main body, and has a sheet member 4 attached to its upper surface. The pushbuttons 30 can be inserted into the through-holes 51, 51, . . . so that they do not bend when pressed.

The thin plate 50 is attached to the substrate 5 such that the surface of the thin plate 50 coincides with the surface of the push button 30, and the substrate 5 is attached to the panel 1 so that the surface of the panel 1 and the surface of the thin plate 50 are in the same plane. cutout hole 1
2 is embedded in the thin plate 50 and attached to the panel 1.

As described above, the surface of the panel 1 is formed into a substantially flat surface, and the synthetic resin sheet member 4 is adhered to the surface. This sheet member 4 has the individual functions of each of the switches 3, 3... displayed on the corresponding part of the push button 3, or the push button 3
A thin seat plate 40 is provided above each push button 30 to provide a feeling of pressing. There is.

As described above, this invention uses a thin plate and has a through hole in which the push button part of the push button switch is loosely fitted, so that the bodies of a large number of push button switches can be installed close to each other or in close contact with each other. This allows the arrangement density of pushbutton switches to be extremely high. Moreover, since the push button portion has a smaller diameter than the main body, the pressing operation is performed smoothly, and the influence on adjacent push buttons is prevented, so that malfunctions do not occur. Furthermore, since the thickness of the thin plate is approximately the same as the stroke of the pushbutton of a pushbutton switch, the surface of the thin plate and the surface of the pushbutton are almost the same plane, and when attached to a panel, the surface of the panel, the thin plate and the pushbutton are It becomes easy to match the surface. Therefore, when the sheet member is attached to the surface of the panel, the sheet member becomes flat and easy to read.

As described above, this invention has the advantage that the installation area of the switch can be minimized, and an excellent operation panel that does not cause malfunctions can be obtained.

[Brief explanation of the drawing]

The accompanying drawings show an embodiment of the operation panel of the electrical control device of the present invention, and FIG. 1 is a perspective view of the entire electrical control device, FIG. 2 is a perspective view of the operation panel with the sheet member and the board separated, and FIG. This figure is also a longitudinal sectional front view of the main components, and FIG. 4 is a longitudinal sectional front view of a conventional operation panel. 1 is a panel, 12 is a cutout hole, 2 is an electrical control device body, 3 is a push button switch, 30 is a push button or a push button portion, 4 is a sheet member, 5 is a substrate, 5
0 is a thin plate, and 51 is a through hole.

Claims (1)

[Scope of utility model registration request] In an operation panel in which a large number of various pushbutton switches each consisting of a main body and a pushbutton portion with a smaller diameter than the main body are provided in order to provide necessary control operations to an electric control circuit, the operation panel is formed of a plate material,
A cutout hole large enough to accommodate a group of pushbutton switches is made in the operation panel, and a thin plate having a thickness equivalent to the stroke of the pushbutton of the pushbutton switch is inserted into the cutout hole, and the surface of the thin plate is as described above. The thin plate is fitted so that it is flush with the surface of the operation panel, a through hole is made in the thin plate into which the push button portion of the various push button switches is loosely fitted, and the surface of the push button portion is placed in the thin plate in the through hole. The various pushbutton switches are arranged and mounted on a board with the bodies of the pushbuttons close to each other or in close contact with each other, and the board is mounted on the operation panel so that the surfaces of the pushbuttons of the various pushbuttons are An operation panel for an electric controller, which is made to match the surface of the panel and has a sheet-like member adhered to the surface of the panel so that the functions of the various push button switches described above can be read.