JP3144261B2 - Operation button device for electronic equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation button device for an electronic device used for an electronic device such as an on-vehicle audio device.

2. Description of the Related Art FIG. 4 shows an example of an on-vehicle acoustic device. This on-vehicle audio device is an on-vehicle audio device in which a radio receiver and a cassette deck are integrally combined.
In FIG. 4, reference numeral 1 denotes a device main body, and a front plate (escussion) 2 is attached to a front surface of the device main body 1. Reference numeral 3 denotes a cassette insertion opening for inserting a cassette, 4 denotes a dust cover for opening and closing the cassette insertion opening 3, 5 denotes a display section for displaying a reception frequency and the like, and 6 denotes various operation buttons. Reference numeral 7 denotes an operation button for increasing or decreasing the volume. When the upper end of the operation button 7 is pressed, a switch for increasing the volume is activated to increase the volume. When the lower end of the operation button 7 is pressed, the volume is decreased. Switch works to decrease the volume. Reference numeral 8 denotes a small operation button inserted into a hole formed in the center of the operation button 7, and when the operation button 8 is pressed, a mode switching switch operates to perform mode switching. Since the size of the in-vehicle acoustic device is determined, the size of the front panel 2 is limited, and the size and number of operation buttons are restricted. For this reason,
As shown in FIG.
If the operation buttons 8 can be arranged in the space, it is effective for multifunctionalization. 5 to 7 show the structure of a conventional operation button device for an electronic device including the operation buttons 7 and 8 in FIG. 5 to 7, reference numeral 9 denotes a printed board on which switches 10, 11, and 12 are soldered. A light guide plate 13 guides light emitted from a lamp (not shown) to operation buttons 6, 7, and 8, and illuminates the operation buttons 6, 7, and 8 from the back. It is. Reference numerals 14 and 15 denote holes formed in the light guide plate 13, 16 denotes a protrusion integrally formed with the light guide plate 13, and 17 denotes a hole formed in the center of the protrusion 16. 18 is square hole 1
A rubber pad 9 is formed, and a rubber pad 20 is formed with a square hole 21. 8 is the operation button,
The operation button 8 includes a flange 22 and a driving piece 2 projecting to the rear.
3 are integrally formed. Reference numeral 7 denotes the operation button, and a hole 24 through which the operation button 8 passes is formed in the center of the operation button 7. Reference numeral 25 denotes a flange formed integrally with the operation button 7, and reference numerals 26 and 27 denote button holding portions extending from both sides of the flange 25. The button holding portions 26 and 27 are formed on the back surface of the front plate 2. It is inserted into the concave portions 28 and 29. Reference numerals 30 and 31 denote driving pieces integrally formed above and below a rear portion of the operation button 7.
5 to 7, the large operation button 7 is inserted into the hole of the front plate 2, and the button holding portions 26 and 27 of the operation button 7 are inserted into the concave portions 28 and 29 on the rear surface of the front plate 2. After the small operation button 8 is inserted into the hole 24 of the large operation button 7 held on the front plate 2 and the pads 20 and 18 are arranged at predetermined positions, the light guide plate 13 is moved to the rear portion of the front plate 2. Then, the printed circuit board 9 is screwed to the rear of the front plate 2 to complete the assembly of the operation button device. In the assembled state, the pad 20 is interposed between the flange 22 of the small operation button 8 and the projection 16 of the light guide plate 13, and the driving piece 23 of the small operation button 8 is located in the hole 17 of the light guide plate 13. It faces the switch 11. The pad 18 is interposed between the flange 25 of the large operation button 7 and the light guide plate 13, and the driving pieces 30, 31 of the large operation button 7 are
The switches face the switches 10 and 12 in the holes 14 and 15.
In FIG. 6, when the upper part of the large operation button 7 is pressed, the switch 10 is driven by the driving piece 30 to increase the volume. When the lower part of the large operation button 7 is pressed, the switch 12 is driven by the driving piece 31 and the volume is reduced. When the operation of the large operation button 7 is completed, the large operation button 7 returns to the original position by the elastic force of the hinge. When the small operation button 8 is pressed, the switch 11 is driven by the driving piece 23, and the mode is switched. When the operation of the small operation button 8 is completed, the small operation button 8 returns to the original position by the elastic force of the pad 20.

However, in the above-mentioned conventional operation button device for electronic equipment, the pad 20 is arranged at the rear of the small operation button 8 in order to return the small operation button 8 after the operation to the original position. Therefore, sufficient light cannot be uniformly guided from the light guide plate 13 to the small operation button 8 by the pad 20, and the illumination of the small operation button 8 is sufficient.
In addition, it could not be performed uniformly. In addition, since the small operation button 8 must be arranged in the limited space of the operation button 7, the assembling work is difficult. An object of the present invention is to solve the above-described conventional problems, and to provide an excellent operation button device for electronic devices that can sufficiently illuminate the operation button with a simple configuration and that can uniformly perform the operation. .

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a method of manufacturing a semiconductor device comprising a first plate movably held in a hole in a front plate.
An operation button, a second operation button which is inserted into a hole of the first operation button and one end of which is fixed to a rear part of the first operation button via a hinge, and a light guide plate provided at a rear part of the front plate And a plurality of switches fixed to the printed circuit board.

Therefore, according to the present invention, when the first operation button held on the front panel is operated, the switch is driven by the driving piece formed on the back of the first operation button. When the second operation button movably held by the operation button is operated, another switch is driven by a driving piece formed on the back of the second operation button. Further, in the present invention, since the second operation button is returned to the original position by the elastic force of the hinge portion, a pad for returning the second operation button to the original position is not required. The operation button can be sufficiently and uniformly illuminated with the guided light.

1 to 3 show an operation button device according to an embodiment of the present invention. In addition, in FIGS.
The same parts as those in the conventional example shown in FIG. 7 are denoted by the same reference numerals. In FIG. 1 to FIG. 3, a small operation button 32 is inserted into the hole 24 of the operation button 7, and a hinge portion 34 extending in the lateral direction is integrally formed at one end of a flange 33 of the small operation button 32. Further, a protruding piece 35 extending forward is integrally formed at the tip of the hinge portion 34. Reference numeral 36 denotes a concave portion formed at the rear of the operation button 7. The small operation button 32 is inserted into the hole 24 of the large operation button 7 from the rear, the projection 35 of the small operation button 32 is inserted into the concave portion 36 of the operation button 7, and the small operation button 32 is movable to the large operation button 7. It is held as possible. As shown in FIG. 3, in a state after the operation button device of the present embodiment is assembled, the projection 37 of the light guide plate 13 abuts on the rear portion of the projection 35 of the small operation button 32. Therefore, the projection 35 inserted into the concave portion 36 of the large operation button 7 is prevented from coming off by the projection 37 of the light guide plate 13. In FIGS. 1 to 3, the projection 35 of the small operation button 32 is used.
Is inserted into the concave portion 36 of the large operation button 7, and the small operation button 32 is movably held by the large operation button 7. The button holding unit 2 of the large operation button 7 holding the small operation button 32
6, 27 are recesses 28, 29 formed on the back surface of the front plate 2.
The large operation button 7 is movably supported by the front panel 2. The light guide plate 13 is screwed to the rear of the front plate 2. In this state, the light guide plate 13 comes into contact with the backs of the button holding portions 26 and 27 inserted into the recesses 28 and 29, so that the large operation button 7 is prevented from coming off by the light guide plate 13 and the large operation button 7 is recessed. The projection 37 of the light guide plate 13 abuts against the back of the projection 35 of the small operation button 32 inserted in 36, so that the small operation button is prevented from coming off by this projection 37. After attaching the light guide plate 13 to the front plate 2 and screwing the printed circuit board 9 to the rear of the front plate 2, the switches 10,
The holes 11, 12 enter the holes 14, 15, 17 of the light guide plate 13, in which the driving pieces 30, 31, 38 of the operation buttons 7, 32 are connected to the switches 10, 12, 11. opposite. In the above embodiment, when the upper part of the large operation button 7 rotatably held by the front panel 2 is pressed, the operation button 7 is rotated about the hinge portion, and the switch 10 is driven by the driving piece 30 to switch the volume. Is increased. When the lower part of the large operation button 7 is pressed, the switch 12 is driven by the driving piece 31 and the volume is reduced. Small operation button 3
When the user presses the button 2, the small operation button 32 rotates around the hinge portion 34 as a fulcrum, and the switch 11 is driven by the driving piece 38 to switch the mode. Excluding the pressing force of the small operation button 32, the operation button 32 returns to the original state by the restoring force of the hinge portion 34 of the small operation button 32. Thus, according to the above embodiment, the small operation button 3
Since the large operation button 7 is movably held by the large operation button 7, the pad 20 as in the conventional example is unnecessary, and the light is sufficiently and uniformly transmitted from the light guide plate 13 to the small operation button 32 without being blocked by the pad 20. A small operating button 32 that can be guided
Lighting can be performed brightly and uniformly. In addition, the structure is such that the small operation button 32 is held by the large operation button 7,
The operation of incorporating the operation button 32 into the operation button 7 can be performed separately, which has an advantage that the operation of assembling the operation button device can be easily performed.

As is clear from the above embodiment, the present invention has an advantage that the operation buttons can be satisfactorily and uniformly illuminated with a simple structure, and the assembling is easy. .

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an operation button device for an electronic 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 sectional view taken along line BB of FIG. 1;

FIG. 4 is a front view of an on-vehicle audio device.

FIG. 5 is an exploded perspective view of a conventional electronic device operation button device.

FIG. 6 is a sectional view taken along line AA of FIG. 5;

FIG. 7 is a sectional view taken along line BB of FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Device main body 2 Front plate 7 Operation button (1st operation button) 9 Printed circuit board 10, 11, 12 Switch 13 Light guide plate 30, 31 Drive piece 32 Operation button (2nd operation button) 34 Hinge part 35 Projection piece 36 Recess 37 Projection 38 Drive piece

Claims (3)

(57) [Claims] A first plate movably held in a hole in a front plate;
An operation button, a second operation button which is inserted into a hole of the first operation button and one end of which is fixed to a rear part of the first operation button via a hinge, and a light guide plate provided at a rear part of the front plate And a plurality of switches fixed to the printed circuit board. The switch is driven by a driving piece integrally formed at the rear of the first and second operation buttons. An operation button device for an electronic device, comprising: 2. A projection formed at a tip of a hinge portion of a second operation button is inserted into a recess formed at a back of the first operation button , and a light guide plate is applied to a rear portion of the projection. The operation button device for an electronic device according to claim 1, wherein the operation button device is in contact with and prevented from falling off. 3. A first member movably held in a hole in a front plate.
And the operation button is inserted into the hole of the first operation button.
The second operation button movably held by the first operation button
Button and fixed to the back of the front plate via a light guide plate
A printed circuit board and a plurality of fixed
And a switch on the rear of the first and second operation buttons.
Driving the switch with an integrally formed drive piece
An operation button device for an electronic device, comprising: