JP3828688B2 - Lighting device for automobile operation panel - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lighting device for an operation panel such as an air conditioning operation panel disposed on an instrument panel of an automobile.
[0002]
[Prior art]
Conventionally, as an operation panel disposed on an instrument panel of an automobile, for example, an air conditioning operation panel 1, as shown in FIG. 4 (a), a temperature setting rotation operation knob 4 for setting temperature, on / off of a fan, and air blowing intensity The fan control rotation operation knob 5 for setting the air flow and the air blow mode setting rotation operation knob 6 for setting the air blowing position are arranged in parallel on the upper part of the panel surface, and the slide operation for selecting the intake air inside / outside air The slide recess 17 in which the knob 7 is disposed is disposed at the center of the lower portion of the panel surface, and the display portions 4a to 7a are provided around the rotation operation knobs 4 to 6 on the panel surface and the upper portion of the slide recess 17 respectively. What is provided is known. Reference numeral 8 denotes an air conditioner switch disposed on one lower side of the panel surface.
[0003]
As an illuminating device for the display units 4a to 7a in this type of operation panel, the rotary operation knobs 4 to 6 and the display units 4a to 7a of the slide operation knob 7 are connected between the rotary operation knobs 4 and 5 and between 5 and 6. What was illuminated with the light from the light source 13 arrange | positioned in the back part of this is known.
[0004]
However, in this case, the display unit is illuminated, but the slide operation knob 7 itself is not illuminated, so there is a problem that it is not possible to know which operation position is located at night.
[0005]
Therefore, as a means for giving the slide operation knob a night illumination function, as shown in FIGS. 4B and 4C, a light transmission rod member 27 made of transparent resin is embedded in the operation knob 7, and one end 27a is operated. It is known that the light guide surface 27b is formed so as to face the front end surface of the knob 7 and to extend the other end side to the back portion of the panel surface and to incline toward the light source 13 at the other end portion. Such means are disclosed in, for example, Japanese Utility Model Publication No. 54-61953 and Japanese Utility Model Publication No. 59-22557.
[0006]
[Problems to be solved by the invention]
However, since the light transmission rod member 27 is attached to the slide operation knob 7 in the above configuration, there is a problem that the cost is increased.
[0007]
SUMMARY OF THE INVENTION The present invention has been made in view of the above-described conventional problems, and it is an object of the present invention to provide a lighting device for an operation panel of an automobile that can illuminate a slide operation knob and recognize its operation position, and can be configured simply and at low cost. And
[0008]
[Means for Solving the Problems]
The lighting device for the operation panel of the automobile according to the present invention has a slide recess in which a plurality of rotation operation knobs are arranged in parallel at the upper portion of the panel surface, and a slide operation knob that is slid right and left is arranged at the lower portion of the panel surface. On the operation panel of an automobile provided with a light source for illuminating the display part provided around the rotary operation knob and at the top of the slide recess, on the back, and above the slide operation knob positioned at each operation position An illumination opening is formed in the upper wall of the slide recess and the light source is disposed so that the tip of the end surface is illuminated obliquely from above to the outside of the slide recess, and the upper surface of the tip of the slide operation knob is positioned. and together with the reflected light is formed from a plane which is inclined downwardly toward the distal end so as to be directed obliquely downward, is projected from the slide recess of the tip portion of the slide operation knob, the illumination aperture The light that passes through is designed not to hit the lower wall of the slide recess, and the light from the light source that illuminates the display on the panel surface from the back illuminates the tip of the slide control knob directly through the illumination opening. Therefore, the reflected light can be seen from the sight line position of the occupant, the operation position of the slide operation knob can be easily recognized even at night, and it can be easily determined whether it is positioned at the normal operation position, and there are no additional parts. The slide operation knob can be illuminated at a low cost with a simple configuration, and the light passing through the illumination opening does not hit the lower wall of the slide recess, and the tip of the slide operation knob in the normal operation position When only the slide operation knob is not located at the operation position, the entire slide recess is not illuminated, so that the appearance is good.
[0010]
In addition, the top surface of the tip of the slide operation knob is configured with a surface that is inclined downward toward the tip so that the reflected light is directed obliquely downward. Is illuminated and the strong reflected light is emitted obliquely downward and does not enter the passenger's eyes directly.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a lighting device for an operation panel of an automobile according to the present invention will be described with reference to FIGS. In addition, the same reference number is attached | subjected about the component same as the prior art example demonstrated with reference to FIG.
[0012]
Reference numeral 1 denotes an air-conditioning operation panel arranged on an instrument panel of an automobile, and a display board 3 made of a synthetic resin decorative board which is translucent and has a required display is arranged on the front surface of a main body part 2 made of a synthetic resin molded product. Configured.
[0013]
An opening 14 for arranging a temperature setting rotation operation knob 4 (see FIG. 4) for setting an air conditioning temperature is arranged on the right side of the upper part of the air conditioning operation panel 1, and a fan control for turning on / off the fan and selecting a blowing intensity is provided in the center. An opening 15 for arranging the rotation operation knob 5 (see FIG. 4) is formed on the left side and an opening 16 for arranging the air blowing mode setting rotation operation knob 6 (see FIG. 4) for setting the air blowing position is formed on the left side. A slide recess 17 in which the inside / outside air switching slide operating knob 7 for selecting the inside / outside air for intake air is selected is formed in the lower central portion of the panel 1, and an opening 18 in which the air conditioner switch 8 is disposed is formed on the right side. ing.
[0014]
Respective displays for displaying the set positions of the respective knobs 4 to 7 on the periphery of the openings 14 to 16 for arranging the respective rotation operation knobs 4 to 6 of the main body 2 and the upper portion of the slide recess 17 for arranging the slide operation knob 7. Portions 4a to 7a are provided, and light passage holes 9 to 12 corresponding to the display symbols are formed through the portions.
[0015]
On the back of the main body 2, a light source 13 that illuminates the display units 4 a to 7 a is disposed at a position corresponding to between the rotation operation knobs 4 and 5 and between 5 and 6. Then, when the slide operation knob 7 is positioned at either the outside air intake or the inside air intake operation position on the upper wall 19 of the slide recess 17, as shown in FIG. The illumination opening 21 is formed so as to illuminate the front end portion of the upper end surface 7 from obliquely upward, and the arrangement position of the light source 13 is set. Further, the tip of the slide operation knob 7 protrudes from the slide recess 17 so that the light passing through the illumination opening 21 does not hit the lower wall 20 of the slide recess 17. Furthermore, the upper surface of the tip portion of the slide operation knob 7 is constituted by an inclined surface 22 that is inclined downward toward the tip, and the light from the light source 13 obliquely above the top surface of the upper end surface of the slide operation knob 7. It is configured such that the strong reflected light 23 is emitted obliquely downward.
[0016]
In the above configuration, the display units 4a to 7a around the rotary operation knobs 4, 5, 6 on the upper part of the air conditioning operation panel 1 and on the upper part of the lower slide operation knob 7 are supplied from the light source 13 disposed on the back. Properly illuminated by light.
[0017]
In addition, since the light from the light source 13 directly illuminates the tip of the upper end surface of the slide operation knob 7 through the illumination opening 21 formed in the upper wall 19 of the slide recess 17, the diffusely reflected light can be visually recognized from the sight line position of the occupant. The operation position of the slide operation knob 7 can be easily recognized at night, and it can be easily determined whether or not the operation position of the slide operation knob 7 is located at the regular operation position.
[0018]
In addition, since the tip of the slide operation knob 7 protrudes from the slide recess 17 so that the light passing through the illumination opening 21 does not hit the lower wall 20 of the slide recess 17, only the tip of the slide operation knob 7 is When illuminated and the slide operation knob 7 is not located at the operation position, the entire slide recess 17 is not illuminated, so that the appearance is good.
[0019]
In addition, since the upper surface of the distal end portion of the slide operation knob 7 is constituted by the inclined surface 22 inclined downward toward the distal end, the strong reflected light 23 is emitted obliquely downward and does not directly enter the passenger's eyes, There is no such thing as dazzling because it only sees diffuse reflection.
[0020]
Further, since the illumination opening 21 is simply opened in the upper wall 19 of the slide recess 17 and the configuration is simple with no additional parts, it can be constructed at low cost.
[0021]
【The invention's effect】
According to the lighting device for the operation panel of the automobile of the present invention, as described above, the light source for illuminating the display portion provided around the rotary operation knob and on the upper portion of the slide recess is disposed on the back, and is positioned at each operation position. An illumination opening is formed in the upper wall of the slide recess, the light source is positioned, and the slide is slid so that the tip of the upper end surface of the slide operation knob is illuminated obliquely from above to the outside of the slide recess. The top surface of the tip of the operation knob is configured with a surface inclined downward toward the tip so that the reflected light is directed obliquely downward, and the tip of the slide operation knob protrudes from the slide recess and passes through the illumination opening. Since the light does not strike the lower wall of the slide recess, the tip of the top end of the slide operation knob is directly illuminated by the light from the light source that illuminates the display on the panel surface, and the reflected light is It can be seen from the position of the operator's line of sight, the operation position of the slide operation knob can be easily recognized even at night, and it can be easily determined whether or not it is positioned at the regular operation position, and the slide operation with a simple configuration with no additional parts The knob can be illuminated and can be configured at low cost. Furthermore, the light passing through the illumination opening does not hit the lower wall of the slide recess, and only the tip of the slide operation knob in the normal operation position is illuminated and slides. When the operation knob is not located at the operation position, the illumination is not applied to the entire slide recess, so that the appearance is improved. In addition, the top surface of the tip of the slide operation knob is configured with a surface that is inclined downward toward the tip so that the reflected light is directed obliquely downward. Is illuminated and the strong reflected light is emitted obliquely downward and does not enter the passenger's eyes directly.
[Brief description of the drawings]
FIG. 1 is a front view of a main body in an embodiment in which a lighting device for an operation panel of an automobile according to the present invention is applied to an air conditioning operation panel.
FIG. 2 is a cross-sectional view taken along the line AA in FIG.
FIG. 3 is a cross-sectional view taken along the line BB in FIG. 1;
4A and 4B show a conventional air conditioning operation panel of an automobile, in which FIG. 4A is a front view, FIG. 4B is a cross-sectional view taken along the line CC of FIG. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Air-conditioning operation panel 4 Temperature setting rotation operation knob 4a Display part 5 Fan control rotation operation knob 5a Display part 6 Air blow mode setting rotation operation knob 6a Display part 7 Inside / outside air switching slide operation knob 7a Display part 13 Light source 17 Slide recessed part 19 Upper wall 21 Lighting aperture

Claims (1)

In the operation panel of an automobile, a plurality of rotation operation knobs are arranged in parallel at the top of the panel surface, and a slide recess is provided at the bottom of the panel surface that slides left and right. A light source that illuminates the display section around the operation knob and on the top of the slide recess is arranged on the back, and the tip of the upper end surface of the slide operation knob located at each operation position is obliquely upward from the slide recess outward. An illumination opening is formed in the upper wall of the slide recess and the light source is positioned, and the top surface of the tip of the slide operation knob is positioned so that the reflected light is directed obliquely downward. together constitute at surface inclined downward toward the the tip portion of the slide operation knob is projected from the slide recess, the light passing through the illumination opening is a hit in the lower wall of the slide recess Lighting apparatus for an automobile of the operation panel, characterized in that the the like.

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