JPH07285387A - Illumination structure for removable operation section - Google Patents

Abstract

PURPOSE:To provide an illumination structure for a removable operation section capable of easily adjusting the toning and brightness of the whole operation section including the operation section on a main body side. CONSTITUTION:A light guide body 6 is arranged in a space between a switch base 4 and the back face 1A of a case 1 generated by a connecting terminal 3, and part 6A of the light guide body 6 is extended to a button illumination section through the switch base 4. The button illumination section can be illuminated by a small electric lamp 8 used as a light source, no excess space in the thickness direction is occupied by the light guide body 6, and the toning and brightness of the whole operation section including the operation section on a main body side can be easily adjusted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an illumination structure of a detachable operation unit provided in an on-vehicle audio equipment or the like, and more particularly to a detachable operation unit using a small light bulb as a light source.

[0002]

2. Description of the Related Art It is common to mount an audio device such as a cassette tape player in an automobile. However, when the automobile is left, it is frequently stolen that such an in-vehicle audio device is removed from the automobile. There is. For this reason, in order to prevent the theft of audio equipment, recently, there has been a configuration in which the operation unit (operation panel), which is a part of the audio equipment, is made detachable, and the operation unit is detached when leaving the car so that it can be carried. Are known.

FIG. 6 is a cross-sectional view showing a conventional detachable operation section provided in such an audio device. This detachable operation section 31 can be attached to and detached from a main body (not shown) in the arrow direction. Has become. A switch board 24 having a switch 22 provided on the front surface and a connection terminal 23 provided on the back surface is provided in the casing 21. A flexible button for operating the switch 22 is provided on the surface of the case 21. 25 are provided. In addition, the button 2 is provided on the surface of the switch board 24.
An LED 26 is provided as a button illuminating unit that illuminates 5. The switch 22 is provided with a protruding portion 22A, and the button 25 facing the protruding portion 22A is provided with a pressing portion 25A.
By repeating the pressing operation of 5, ON and OFF are repeated.

As described above, the conventional detachable operation unit 31 has an L
When the button illuminator using the ED 26 is provided and the various buttons 25 are operated, the operability and the visibility of the button 25 are improved by illuminating the button 25 with the LED 26. ing. In addition,
A small light bulb is used as a light source for illuminating various buttons provided on an operation unit on the main body side to which the operation unit 31 is attached / detached in addition to the detachable operation unit 31.

[0005]

By the way, in the conventional illumination structure of the detachable operation part, since the LED is used as the light source, the LED is used between the operation part on the main body side which uses the small light bulb as the light source. There is a problem that it becomes difficult to adjust the color and the brightness.

That is, since the types of colors that LEDs can emit are limited as compared with small light bulbs, it is impossible to perform arbitrary color matching. On the other hand, the small light bulb used as the light source of the operation unit on the main body side to which the detachable operation unit is attached / detached is capable of arbitrary color adjustment. In addition, when the brightness is changed electrically by the operation on the vehicle side, a small light bulb and L
Since the ED changes differently, it is not easy to synchronize the change in brightness.

The present invention has been made in consideration of the above problems, and is a detachable operation unit that allows easy color adjustment and brightness adjustment of the entire operation unit including the operation unit on the main body side. It is intended to provide a lighting structure of the.

[0008]

In order to achieve the above object, the present invention according to claim 1 is characterized in that a switch substrate having a switch and a connection terminal on a front surface and a back surface is provided in a casing. In a detachable operation unit including a button illumination unit that illuminates a button that presses the switch provided on the front surface of the case, a light guide is provided in a space between the switch substrate generated by the connection terminal and the back surface of the case. It is characterized in that the light guide is provided and a part of the light guide extends through the switch substrate to the button illumination section.

[0009]

According to the structure of the present invention according to claim 1, the light guide is disposed in the space between the switch substrate and the back surface of the case generated by the connection terminal, and a part of the light guide is passed through the switch substrate. By extending to the button illumination part,
The light guide does not occupy an extra space in the thickness direction, and toning of the entire operation unit including the operation unit on the main body
It is possible to realize the illumination structure of the detachable operation unit in which the brightness can be easily adjusted.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing a first embodiment of a lighting structure of a detachable operation unit of the present invention, and a detachable operation unit 11 of this embodiment can be attached to and detached from a main body (not shown) in an arrow direction. Has become. Reference numeral 1 denotes a casing-shaped case. Inside the casing-shaped case 1,
The switch 2 is provided on the front surface and the connection terminal 3 is provided on the back surface.
A switch substrate 4 provided with is provided, and a flexible button 5 for operating the switch 2 is provided on the surface of the case 1. The switch 2 is provided with a protruding portion 2A, and the button 5 facing the protruding portion 2A has a pressing portion 5A.
The switch 2 is repeatedly turned on and off by repeatedly pressing the button 5.

A switch substrate 4 formed around the connection terminal 3
A light guide 6 is arranged in the space between the rear surface 1A of the case 1 and the light guide 6, and a hole 7 is provided in the light guide 6, and a small light bulb 8 is built in the hole 7. The small light bulb 8 functions as a button illumination unit that illuminates the button 5. Light guide 6
6A extends through the switch substrate 4 to the button illumination portion by the small light bulb 8. That is, in the present embodiment, the space on the side surface of the connection terminal 3 is used, and the light guide 6 is disposed in this space, so that the operating portion on the main body side can be operated without occupying an extra space in the thickness direction. The entire operation unit including the above is configured to be illuminated by the small light bulb 8.

According to this embodiment as described above, the connection terminal 3
The light guide 6 is arranged in the space between the switch substrate 4 and the back surface 1A of the case 1 caused by
Is extended to the button illumination section through the switch substrate 4 and the button illumination section is illuminated by using the small light bulb 8 as a light source. Therefore, the light guide 6 occupies an extra space in the thickness direction. Without this, it is possible to easily adjust the color and brightness of the entire operation unit including the operation unit on the main body side.

FIG. 2 is a sectional view showing a second embodiment of the present invention, showing a lighting structure in which a small light bulb 8 as a light source is attached to a substrate 9 on the main body side of an audio device. Reference numeral 10 denotes a connection terminal of the board 9, which shows an example in which the connection terminal 3 is opposed to the connection terminal 3 on the switch board 4 side. The other components are the same as those in the first embodiment shown in FIG. The second embodiment is different from the first embodiment only in the mounting structure of the small light bulb 8 as the light source, and the other structures are the same as those in the first embodiment. Obtainable.

FIG. 3 is a sectional view showing a third embodiment of the present invention, which has a structure in which a small light bulb 8 as a light source is attached to the main body side, and the small light bulb 8 is detachable as shown in FIG. 3 illustrates an illumination structure arranged on a side surface 12 of an operation unit 11. FIG. 4 is a sectional view showing a fourth embodiment of the present invention, and shows a lighting structure in which a small light bulb 8 as a light source is arranged on a side surface 13 orthogonal to the side surface 12 of FIG. The planar position of the small light bulb 8 according to each embodiment is the position shown by the broken line in FIG. In FIGS. 3 and 4, the same parts as those in FIG. 1 are indicated by the same numbers.

The third and fourth embodiments described above are different from the first embodiment only in the mounting structure of the small light bulb 8 as the light source, and the other structures are the same as those in the first embodiment. Since they are the same, the same effect can be obtained. Further, according to the third and fourth embodiments, particularly when the small light bulb 8 is disposed on the side surfaces 12 and 13 of the detachable operation unit 11, when the detachable operation unit 11 is removed from the main body side. ,
Since the small light bulb 8 is located in a position where it is difficult for the operator to touch it, it is possible to obtain an effect that it is possible to prevent the small light bulb 8 from being accidentally touched and damaged. The number, position, etc. of the small light bulbs used as the light source in each embodiment can be arbitrarily selected according to the purpose.

[0016]

According to the present invention of claim 1, a light guide is disposed in the space between the switch substrate and the back surface of the case, which is caused by the connection terminal, and a part of the light guide is passed through the switch substrate. Since it is extended to the button illumination part, it is easy to adjust the toning and brightness of the entire operation part including the operation part on the main body side without occupying extra space in the thickness direction by the light guide. It is possible to realize a removable illumination structure of the operation unit.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a first embodiment of a lighting structure of a detachable operation unit according to the present invention.

FIG. 2 is a sectional view showing a second embodiment of the present invention.

FIG. 3 is a sectional view showing a third embodiment of the present invention.

FIG. 4 is a sectional view showing a fourth embodiment of the present invention.

FIG. 5 is a plan view showing a detachable operation unit to which the third and fourth embodiments of the present invention are applied.

FIG. 6 is a cross-sectional view showing a conventional example.

[Explanation of symbols]

 1 Case 2 Switch 3, 10 Connection Terminal 4 Switch Board 5 Button 6 Light Guide 8 Small Light Bulb (Light Source) 11 Detachable Operation Section 12, 13 Side of Detachable Operation Section

Claims (1)

[Claims] 1. A button illumination for illuminating a button for pressing the switch provided on the surface of the case, wherein a switch substrate having a switch and a connection terminal provided on the front surface and the back surface, respectively, is provided in a casing. In the detachable operation section having a section, a light guide is arranged in a space between the switch board generated by the connection terminal and the back surface of the case, and a part of the light guide is passed through the switch board to the button lighting section. A lighting structure for a detachable operation unit, which is characterized by being extended.