JPS6081717A - Pushbutton switch - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a flat panel type pushbutton switch used in an operation panel section of an electronic device.

Conventional configurations and their problems In recent years, as devices have become increasingly computerized, pushbutton switches used in device operation panels are required to be flat panel types that are thin and easy to assemble. There is.

As a conventional example, as shown in FIG. 1, a spacer 4 having an opening 3 is placed on an insulating substrate 2 having a contact 1, and the opening 3 of this spacer 4 is provided with the contact 1. Diaphragm 6 made of a spherical elastic metal plate
9, and a display board 1o is placed on the top surface of the case 7. With this configuration, the switch shown in Fig. 2 is bent to conduct between the contacts 1 and change the switch. .

However, in the above configuration, as the design of the display board 10 becomes more diversified, it becomes necessary to select a material that is rich in operational feel, printability, durability, and environmental resistance. Generally, the display board 10 is made of a thin plate of about 160 microns made of polyester, polycarbonate, etc., which has excellent flexibility, printability, durability, and resistance, and avoids materials such as rubber that are harmful to the contact parts. However, after many years of use, the operation surface of the display board 10 is damaged at the corner of the hole 8 of the case 7, which deteriorates the product value significantly.

OBJECTS OF THE INVENTION The present invention eliminates the above-mentioned problems, and provides a push button switch that prevents the display board from fading or scratching and does not lose its commercial value even after long periods of use or under unusual operations. be.

Structure of the Invention In order to achieve this object, the push button switch of the present invention has a button part for operating the switch part fitted into a hole provided in a case, and a thin plate having elasticity arranged so as to cover at least the upper surface of the hole. Furthermore, a flexible display plate is attached to the upper surface of the thin plate.

With this configuration, by arranging the elastic thin plate between the display board and the case, the load on the display board is reduced, and the tendency of the display board to sag or the four members to fall is reduced.

DESCRIPTION OF EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS. 3 and 4 of the drawings.

First, in the embodiment shown in FIG. 3, 12 is 1 concubine point 11
an insulating substrate having a contact point 1 on the insulating substrate 12;
A spacer 14 made of synthetic resin and having an opening 13 is placed in the part where the bullet 1 is provided, and a diaphragm 16 made of a raw metal plate having a spherical shape is placed in the opening 13 of the spacer 14. and + on the top surface of the case 17.
A thin plate 21 having a property of
] The device that operates to conduct the conductor and change the switch returns to the upper movement.

Since the pushbutton switch according to the embodiment of the present invention is constructed as described above, the direct burden on the display board 20 during operation is reduced, and wear or damage to the display board 2o can be reduced.

In addition, as another embodiment, as shown in FIGS.
00 microns or less is suitable, but if it is unavoidable to use 200 microns or more, or if you use 200 microns or less and want to further improve the operation feeling, see Figures 5 and 6. The operational feeling can be improved by providing a slit 22 in the thin plate 21 as shown, or by providing a groove 23 in the thin plate 21 as shown in FIG.

It should be noted that what is shown in FIGS. 6 and 7 is only one example.
The slits 22 and grooves 23 may have other similar shapes and configurations.

Effects of the Invention As described above, according to the present invention, by adding a single elastic thin plate, the display board can be prevented from fading or being scratched even after a long period of time or a unique operation method, and the equipment can be Not only does it not reduce the commercial value of the product, it also requires only one thin plate, so the parts cost and assembly man-hours are minimal, making it inexpensive and of practical value.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view showing a conventional pushbutton switch, Fig. 2 is a top view showing an example of a conventional pushbutton switch with a recessed part during operation, and Fig. 7 is a thin plate with a grooved part. It is a sectional view of an example. 11...Contact, 12...Insulating substrate, 13
...Opening hole, 14...Spacer, 16...
...Diaphragm, 16...Film, 1
7...Case, 18...Hole, 19...
... Buttons 2o ... display board, 21 ... thin plate, 22 ... slit, 23 ... middle groove. Name of representative f4jj Patent attorney Toshi Nakao and 1 other person
Name 2nd figure 0? ):,! School printing■ Hechozuka

Claims (2)

[Claims] (1) A button part for operating the switch part is fitted into a hole provided in the case, a thin elastic plate is placed so as to cover at least the top surface of the hole, and a flexible display is placed on the top surface of the joint plate. A push button switch with a plate attached. (2) The pushbutton switch according to claim 1, wherein a groove or slit is provided in a portion of the thin plate corresponding to the button.