JPH054180Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a push button device used in an operating section of an audio device, etc., and particularly has an indicator function to indicate an operating state.

[Conventional technology]

Conventionally, in this type of push button device, as shown in FIG. 3, an illuminated knob 23 made of resin or the like is attached to an outer frame 22 so as to protrude from the front surface of the outer frame 22.
The illumination knob 23 is urged by an elastic member 24 and always projects from the outer frame 22. Further, a printed circuit board 28 is provided behind the illumination knob 23 and is equipped with a switch 25 that can be switched according to the operation of the illumination knob 23.
Two illumination parts 26 and 27 were mounted on this printed circuit board 28 so as to sandwich the switch 25 therebetween. These two illumination parts 26 and 27 were designed to emit light of different colors. And illuminated knob 2
When 3 is pressed, the switch 25 is turned on or off, and in conjunction with this switching, one of the two illumination parts 26 and 27 illuminates the illumination knob 23. In other words, when the switch 25 is in the ON state, the illumination part 2
6 illuminates the illumination knob 23, OFF
In the state, the illumination section 27 illuminates the illumination knob 23, and depending on the state of the switch 25, the illumination knob 23 is illuminated.
The lighting color could be switched throughout.

[Problem that the invention attempts to solve]

However, in such a push button device, when a plurality of lighted knobs are used adjacently, the lighted knob that is illuminated in a different color from the other lighted knobs can be illuminated by switching the switch. Color mixing occurred due to leakage of illuminating light. Also, in order to suppress color mixing, it was necessary to separate each lighting knob.

Furthermore, when using only one illumination knob, the illumination color of the illumination knob changes entirely, so it is necessary to memorize the corresponding color when turning the switch ON and OFF, and the indicator function cannot be fully utilized. Nakatsuta.

The purpose of the present invention is to eliminate the above drawbacks, suppress color mixing of the lighting knobs with a relatively simple configuration when multiple lighting knobs are used adjacently, and use only one lighting knob. The objective is to ensure that the indicator function can be fully demonstrated even in cases where

[Means for solving problems]

In order to solve this object, the push button device of the present invention includes an illuminated knob that is reversibly provided by an elastic member, and a switch that is placed behind the illuminated knob and that is switched in accordance with the operation of the illuminated knob. a first illumination unit mounted on the wiring board for illuminating the illumination knob;
A fiber-shaped light guide part embedded in the illumination knob,
A second light emitting section is provided opposite to one end of the light guide section for supplying light of a different color from the first light emitting section to the light guide section from the one end, and a second light emitting section is provided behind the wiring board. A mounting plate to which a light emitting part is attached is provided, and an opening having a diameter slightly larger than the light guide part is provided in the wiring board so that the light guide part can be inserted therein.

[Effect]

The above technical means works as follows.

When the switch is not switched, the illumination knob is illuminated only by the first illumination section, and when the switch is switched, light is supplied from the second illumination section to the light guide section in conjunction with this switching. , the illuminated knob is illuminated by both the first illuminator and the second illuminator to indicate that the switch is being toggled. At this time, there is a wiring board in front of the second lighting section, and this wiring board has only an opening large enough to insert the light guide, so the light from the second lighting section is directed to the wiring board. This prevents the light from leaking into the illumination knob.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS A push button device showing an embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

In the figure, 1 is an operation panel that is attached to the front of the car stereo, and this operation panel 1 includes an illuminated knob 3 that is made of a material that can transmit light, such as acrylic, and whose surface is treated with plastic processing to diffuse light. There are several. This illuminated knob 3
The outer frame 1 is always maintained by a coil spring 4 supported by a light guide plate 11 made of a transparent material such as acrylic.
It is urged to protrude from the front surface of 3. Further, a stopper 3a is provided on the periphery of the illumination knob 3 to prevent the illumination knob 3 from being pulled out from the front surface of the outer frame 13. Furthermore, an optical fiber 10 is embedded in the illumination knob 3, and the tip 10a of the optical fiber 10 is housed in the illumination knob 3 without protruding from the front surface of the illumination knob 3.

5 in the figure is a switch, and this switch 5 corresponds to the operation knob 3 so that when the illumination knob 3 is pressed, it is switched between ON and OFF. It is mounted on a wiring board 8 arranged at the rear. Further, a lamp 6 having a green illumination color is mounted on the wiring board 8, and this lamp 6 is arranged so as to illuminate the plurality of illumination knobs 3 all at once. Further, the wiring board 8 is provided with an opening 12 large enough to allow insertion of the optical fiber 10 embedded in the illumination knob 3. Note that the light guide plate 11 described above is also provided with a hole 14 large enough to insert the optical fiber 10, and the light guide plate 11 passes through the hole 14 and the opening 12, and
The optical fiber 10 is arranged to be routed to the rear of the wiring board 8.

7 in the figure is an LED with red illumination color,
This LED 7 is attached to a mounting plate 9 screwed to the rear of the wiring board 8 and is arranged to face an end of an optical fiber 10 that is routed to the rear of the wiring board 8. In addition, LED7 is switch 5
It is designed to turn on and off in conjunction with the switching operation.

In the push button device formed as described above, when the switch 5 is in the OFF state, the illumination knob 3 is in the lamp 6
The entire illumination knob 3 is illuminated in green.

In addition, the switch 5 is activated by operating the illumination knob 3.
When turned on, the entire illumination knob 3 is illuminated in green by the lamp 6, and
The LED 7 is turned on and red light is supplied to the optical fiber 10. The red light is then output from the tip 10a of the optical fiber 10, illuminating the illumination knob 3 so that a red dot stands out on the green background.

[Effect of idea]

According to the present invention described above, even when a plurality of lighting knobs are used adjacently, the wiring board is arranged in front of the LED (second lighting section), and the wiring board The light from the LED directly
Since the light is not supplied to the illuminated knob,
Without partitioning each lighting knob, it is possible to suppress color mixing between adjacent lighting knobs.

Also, even when using only one illuminated knob,
If you check whether the light guide (optical fiber) is illuminated or not, it has a more reliable indicator function compared to the conventional technology that memorizes the color and confirms whether the switch is ON or OFF based on the color. It comes to have.

[Brief explanation of the drawing]

Fig. 1 is a front view of a push button device according to an embodiment of the present invention when used in a car stereo operation panel, Fig. 2 is a sectional view of the same push button device, and Fig. 3 is a sectional view of a conventional push button device. be. 3... Lighting knob, 4... Elastic member, 5... Switch, 6... Lamp (first lighting section), 7...
LED (second illumination part), 8... wiring board, 9...
Mounting plate, 10... Optical fiber (light guide part), 10
b... One end of the optical fiber, 12... Opening.

Claims (1)

[Scope of utility model registration request] A lighting knob provided so as to be resettable by an elastic member, a wiring board equipped with a switch disposed behind the lighting knob and switched in accordance with the operation of the lighting knob, and mounted on the wiring board,
a first illumination unit for illuminating the illumination knob;
a fiber-shaped light guide part embedded in the light-emitting knob; and a second light guide part that faces one end of the light-guide part and supplies light of a different color from the first light guide part to the light guide part from the one end. At the rear of the wiring board, there is provided a mounting plate to which a second illumination part is attached, and the wiring board has a diameter slightly larger than that of the light guide part so that the light guide part can be inserted into the wiring board. A push button device characterized by being provided with an opening.