JPS6136959Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a novel control indicator for automobiles, and more specifically, the invention relates to a novel control indicator for automobiles, which is equipped with a display body such as characters and symbols for indicating the operating mode of the device, and a control lever for controlling the device. In the control indicator, the light from the light source that supplies light for illuminating the display is also used to illuminate the operating knob attached to the tip of the control lever, making it easier to confirm the position of the operating knob. The purpose of this invention is to provide a novel control indicator for automobiles.

The inventive control indicator for automobiles is
In a control indicator that is equipped with characters, symbols, etc. that indicate the operating mode of the device and a control lever that controls the device, the display is provided by printing on the back side of a transparent substrate, and the light from the light source is providing a light guide display plate that can be introduced into the wall thickness and illuminate the display body with the light introduced into the wall thickness;
An operation knob attached to the tip of the control lever is moved along the display body of the light guide display board, and an inclined reflective surface is formed on the back surface of the upper and lower edges of the light guide display board, so that the inclined reflection It is characterized in that the light introduced into the wall thickness of the light guide display plate is reflected toward the operation knob by the surface.

The details of the automotive control indicator of the present invention will be explained below with reference to specific embodiments shown in the accompanying drawings.

1 to 3 show a first embodiment of the control indicator for an automobile according to the present invention, which is applied as an air control indicator for an automobile. 1a is a light guide display board, and a transparent substrate 2 made of a transparent material such as acrylic resin;
Indicators 3a, 3a, . . . such as letters and symbols indicating the operating mode of the air conditioner are provided on the back side of the air conditioner.
The display bodies 3a, 3a, . . . have bright colors that are relatively in contrast to the color of the case, which will be described later, and are applied to the back surface of the transparent substrate 2a by printing or the like. 4
Reference numeral a denotes a case having a recess 5a for receiving the light guiding display plate 1a and a light bulb mounting hole 6a, and the light bulb mounting hole 6a is formed at the rear end of a light bulb arranging portion 7a that projects slightly rearward from one end of the recess. There is. The case 4a is formed in a color that has a relatively clear contrast with the color of the display bodies 3a, 3a, . . . described above. If the case 4a is black, the display bodies 3a, 3a, . . . may be of a lighter color, such as white, blue, red, etc., if the case 4a is black. Light guide display board 1a
is received in a fitted manner in the recess 5a of the case 4a, and one end is arranged so as to cover the front surface of the light bulb placement part 7a of the case 4a, and the surface opposite to the light bulb placement part 7a (front side) is It is cut obliquely to form an inclined reflective surface 8a. Reference numerals 20 and 21 are inclined reflective surfaces formed on the back surfaces of the upper and lower edges of the light guide display panel 1a, and a colored filter layer 2 is provided on the front surface of the light guide display panel 1a corresponding to the inclined reflective surfaces 20 and 21.
2 and 23 are formed. 10a is case 4a
A projecting edge formed on the periphery of the inner bottom surface of the recess 5a,
This projecting edge 10a supports the back surface of the light guide display plate 1a, so that an appropriate gap is formed between the light guide display panel 1a, the back surface, and the inner surface of the case 4a. 11
A is a small light bulb for a light source, and is attached to the light bulb attachment hole 6a, and the light source part is arranged in the light bulb placement part 7a.

Reference numeral 12a denotes a surface plate disposed further in front of the light guide display panel 1a, and a window 13a through which the light guide display panel 1a faces is formed. And this window 13a
The edges thereof cover the peripheral edge of the light guide display panel 1a. 14a and 15a are windows 13 of the surface plate 12a
The control levers 16a, 17a extend rearward through the slide grooves 41a, 15a. Operation knobs 18a and 19a are attached to the tips of the control levers 16a and 17a.

The upper and lower filter layers 22 and 23 may be colored in the same color, or may be colored in different colors. In addition, if the brightness of the light reflected by the inclined reflective surfaces 20 and 21 is too high and may dazzle the viewer, a frosted surface may be formed in these areas instead of the filter layers 22 and 23 to reduce the brightness. Of course, the filter layers 22 and 23 are also effective in lowering the brightness.

Therefore, in the automobile control indicator configured in this manner, the light from the light bulb 11a enters the light guide display panel 1a from the surface of the light guide display panel 1a facing the light bulb 11a, and this light is reflected at an angle. It is reflected by the surface 8a and the light guide display plate 1a
It illuminates the entire area and illuminates the display elements 3a, 3a, . . . attached to the back surface of the light guide display panel 1a from the back side. Therefore, display bodies 3a, 3 in a dark background
A,... will be brightly illuminated and will appear to stand out. In addition, the light is reflected by the inclined reflection surfaces 20 and 21 formed on the upper and lower edges, and is emitted to the front.
The lower or upper surfaces of the operation knobs 18a, 19a are illuminated. Incidentally, the inclined reflective surfaces 2 of the operation knobs 18a and 19a
If the surface illuminated by the light reflected by the filter layers 22 and 21 is white, colored illumination by the colored light by the filter layers 22 and 23 is performed.

4 to 6 show a second embodiment of the control indicator for an automobile according to the present invention, in which the same parts as in the first embodiment are denoted by the same number with the additional symbol "a" and "c". ", and only the different parts will be explained.

In this embodiment as well, the upper and lower side walls of the case 4c are removed, and slide grooves 14c and 15c are formed between the upper and lower inner end surfaces of the surface plate 12c and the upper and lower outer end surfaces of the light guide display panel 1c. . In addition, an inclined reflective surface 20 is provided on the back surface of the upper and lower edges of the light guide display plate 1c.
c, 21c are formed, and further a light guide display plate 1
Notch strips 26 and 27 are formed on the front surface of the upper and lower edges of c. Furthermore, the operation knob 18c, 1
The rear side of the portion 9c on the light guide display plate 1c side is arranged to fit into the cutout strips 26, 27, and the portions corresponding to the inclined reflective surfaces 20c, 21c are colored transparent portions 28, 29. .

Therefore, in this embodiment, the light introduced into the thickness of the light guide display plate 1c is transmitted through the display plates 3c, 3.
c, .
In order to transmit through the colored transparent parts 28 and 29 of 19c,
The operating knobs 18c and 19c can be easily recognized in any position. In this embodiment, if the brightness of the light reflected by the inclined reflective surfaces 20c, 21c is too high and may dazzle the viewer, the surface of the light guide display plate 1c corresponding to these inclined reflective surfaces 20c, 21c may be A colored filter film may be applied to the surface, or a frosted surface may be formed.

As explained above, in the automotive control indicator of the present invention, an inclined reflective surface is formed on the back surface of the upper and lower edges of the light guide display plate, and the light is introduced into the wall thickness of the light guide display board using the inclined reflective surface. Since the reflected light is reflected towards the operating knob, the operating knob is brightly illuminated and has improved visibility. Moreover, the light for illuminating the operation knob uses the light emitted directly from the light guide display board, and since no external components are used in the way, there is no attenuation on the way, making the illumination light for the operation knob extremely bright. can do.

[Brief explanation of drawings]

1 to 3 show a first embodiment of the automotive control indicator of the present invention, in which FIG. 1 is a front view, FIG. 2 is a sectional view taken along line C-C in FIG. 1, and FIG. 1 is a sectional view taken along the line D-D in FIG. 6 is a cross-sectional view taken along the line GG in the figure, and FIG. 6 is a cross-sectional view taken along the line H-H in FIG. 4. 1a, 1c...Light guide display plate, 2a, 2c...Transparent substrate, 3a, 3c...Display body, 20, 20
c, 21, 21c... Slanted reflective surface, 11... Light source, 16a, 16c, 17a, 17c... Control lever, 18a, 18c, 19a, 19c
...Operation knob.

Claims (1)

[Scope of utility model registration request] In a control indicator for an automobile, which is equipped with an indicator such as characters or symbols indicating the operating mode of the device and a control lever for controlling the device, an indicator is added by printing or the like on the back side of a transparent substrate. A light guide display plate is provided, which allows light from a light source to be introduced into the wall thickness thereof, and illuminates the display body with the light introduced into the wall thickness, and is attached to the tip of the control lever. The operation knob is moved along the display body of the light guide display board, and an inclined reflective surface is formed on the back surface of the upper and lower edges of the light guide display board, so that the operation knob is moved along the display body of the light guide display board. A control indicator for an automobile characterized in that light introduced into the wall thickness is reflected toward an operation knob.