JPH0342586Y2 - - Google Patents

Description

[Detailed explanation of the idea] (b) Industrial application fields The present invention relates to an operation button device for electronic equipment.

(B) Prior Art In recent years, electronic devices have come into widespread use in which a plurality of operation buttons are integrally molded and are mounted so as to face a group of push buttons provided on the device body. An example of such an operation button is disclosed in Japanese Utility Model Application Publication No. 56-9629.

In the prior art, a plurality of notches are provided in one support plate to form an elastic piece, an operating part is disposed at the tip of the elastic piece, and a decorative plate is attached from above so that only the operating part is exposed. The support plate is configured to be mounted on the board so that a protrusion protruding from the back surface of each operating section faces a switch provided on the board.

(c) Problems to be solved by the invention According to the prior art, a part of the notch is closed by the decorative plate, but the gap between the decorative plate and the outer periphery of the operating part is closed.
It is impossible to close the gap between the two, and during operation, the static electricity charged on the human body is discharged into the board, destroying the electronic components on the board, which is a problem that can easily occur. be.

(d) Means for Solving the Problems The present invention is an operation button device, which includes a substrate on which a push button is arranged, a front panel having a through hole arranged at a position facing the push button, and a a support frame that integrally supports, via an elastic part, an operating part in which a pressing part for pressing the push button is formed on the back surface of an outwardly extending tongue, which faces each other through a through hole; and a front surface of the support frame. and a plate having an opening through which the operating section is exposed.

(e) Effect Since the present invention is configured as described above, an operation button device that is easy to install and is less likely to cause electrostatic damage can be realized.

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

FIG. 1 is an exploded perspective view of the device of this embodiment. 1
is a support frame formed of an insulating resin and has cutouts 3, 3... for arranging a plurality of operation parts 2, 2..., and each of the cutouts 3, 3... has a , the operating parts 2, 2... are hinge parts (elastic parts) 4,
4. It is integrally molded on the upper and lower edges so as to be able to swing freely. Further, on the outer periphery of the operating portion 2..., tongue pieces 5, 5... are provided that protrude outward on the opposite side to the side where the hinge portion 4... is provided, and furthermore, the tongue pieces 5, 5... 5, 5... are formed with pressing portions 6, 6, . . . for pressing tact switches, which will be described later. In addition, there are hook parts 1 at the upper and lower ends of the support frame.
1, 11... are formed.

A front panel 7 is made of an insulating resin like the support frame 1, and has a support frame mounting portion 8 having a flat end. This support frame attachment part 8
When the support frame 1 is attached, the operation section 2,
Concave portions 9, 9 having a slight step from the periphery at positions corresponding to each of 2... These concave portions 9, 9... have positions corresponding to the pressing portions 6, 6... as shown in Fig. 2. Through holes 10, 10, . . . are provided therein.
Further, at the peripheral end of the support frame mounting portion 8, a square hole 1 is provided for inserting and engaging the hook portion 11.
2, 12... are arranged.

13 is a board fixed inside the front panel 7, and the same number of tact switches 14, 14, . . . as the operating sections 2, 2, . . . are disposed.

Reference numeral 15 denotes a highly rigid resin marking plate (plate body) affixed to the front surface of the support frame 1, which allows the operating parts 2 to move in positions corresponding to the operating parts 2, 2... Openings 16, 16, .

Next, the assembly of each of the above-mentioned members will be explained. Fix the board 13 inside the front panel 7,
Each of the tact switches 14, 14... is connected to the through hole 1.
0, 10..., hook parts 11, 11
. . . are inserted into the square holes 12, 12 . . . and engaged with the back surface of the front panel 7 to attach the support frame 1 to the front panel 7. In this state, the pressing parts 6, 6...
... is the tact switch 1 through the through holes 10, 10.
You will face 4, 14...

Furthermore, the marking plate 15 is attached to the operating parts 2, 2.
. . is attached so as to be exposed through the openings 16, 16, . is completed. When a pressing force F is applied to the operating parts 2, 2... from this state, the hinge parts 4, 4... will elastically deform and the pressing parts 6, 6... will press the tact switches 14, 14. When this pressing force F is removed, the hinge portions 4, 4
. . . The operating parts 2, 2 . . . return to their original positions due to the elastic force.

In addition, since the back side of the operation parts 2, 2, .
As shown in FIG.
6, 16..., flows along the side surface of the operating section in the path L1, passes through the tongue piece 5 in the path L2, and passes through the path L3 of the pressing part 6... in order to reach the board 1.
You can't reach 3.

The distance between the tactile switch and the pressing part is such that when the pressing force F is extremely large, the rear surface of the tongue piece 5 comes into contact with the recess and the position is regulated before damage occurs due to excessive pushing of the tactile switch by the pressing part. It is set up so that it is possible to do the following.

(g) Effects of the invention As mentioned above, according to the invention, installation is easy and the support frame is reinforced by the marking plate.
Co-movement of adjacent operating parts is prevented, and since the operating part and the tactile switch are intentionally staggered, the creepage distance is increased, making it possible to prevent electrostatic damage. This has a high practical value because the tongue is prevented from coming into contact with the front panel disposed below the tongue.

[Brief explanation of the drawing]

The drawings all relate to one embodiment of the present invention, and Fig. 1 is an exploded perspective view, Fig. 2 is a diagram showing the relationship between the support frame and the front panel, Fig. 3 is a side sectional view, and Fig. 4 is a main part. FIG. DESCRIPTION OF SYMBOLS 1...Support frame, 2...Operation part, 4...Hinge part (elastic part), 5...Tang piece, 6...Press part, 7...Front panel, 10...Through hole, 15...Marking Plate (plate body), 16...opening.

Claims (1)

[Scope of utility model registration request] a board on which a plurality of tact switches are disposed; a front panel located in front of the board and having a through hole disposed at a position facing each of the tact switches; A pressing part that faces each tact switch through each through-hole and presses each tact switch is formed on the back surface of an outwardly extending tongue piece. Each operating part is integrally supported via each elastic part. a support frame, which is bonded to the front surface of the support frame to reinforce the support frame, and has an opening for exposing the operation part, in which the functions of each operation part are shown; An operation button device characterized in that pressing is prevented by contact between the operation section and the front panel.