JPS5925038Y2 - meter dial - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a meter dial used in vehicle meters.

FIG. 1 is a perspective view showing the appearance of a speedometer, and FIG. 2 is a sectional view showing a conventional meter dial.

As a device for illuminating meters, there is one that illuminates characters and scales using transmitted light.

As shown in FIG.
(Some structures do not have the light guide plate 4), and are guided to the entire area of the dial 3, and the scale 6 printed on the dial 3 (usually printed in a predetermined color on a colorless transparent sheet material) Light 10-a leaks out from the digits and numbers 5 (usually white translucent printing sand printing) and displays them, and unnecessary parts are usually black or an opaque printing layer close to it, i.e. dial base color printing. The layer 7 blocks light from the light guide plate 4.

However, this structure has the disadvantage that a strong contrast occurs between the scale and numeral parts 5 and 6 and the dial background color printing layer 7 due to the difference in brightness, which easily causes eye fatigue.

As a structure other than this, without making the ground color opaque,
For example, if the printing layer is such that only a slight amount of light leaks, the entire dial surface will shine weakly due to light 10-b, and the scale and numbers will shine strongly due to light 10-a, reducing the difference in brightness. Although the above-mentioned drawbacks are solved, the manufacturing process still has the following drawbacks.

(1) Imbalance of illumination occurs due to uneven printing of the ground color printing layer 7, etc.

(2) If a pinhole or the like is found in the printing process of the background color printing layer 7, it is impossible to repair it.

Therefore, the above structure cannot be a fundamental solution either.

The purpose of the present invention is to provide a meter dial structure that can easily and inexpensively eliminate the drawbacks of the conventional ones.
The feature is that the meter dial is made of a translucent plate with a predetermined background color, and the above characters and scales are printed on the surface of the meter dial in a predetermined color that is brighter than the base color of the meter dial. This is because it is formed from a transparent printing layer.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 3 is a sectional view showing a meter dial according to an embodiment of the present invention.

In the figure, the dial plate 3 is formed of a translucent board material colored in a predetermined background color, such as green or blue, and on its surface is a translucent character printing layer in a predetermined color, for example, the base color. 5 and a scale printing layer 6 are formed.

As a result, as shown in the figure, the light from the light guide plate 4 passes through the dial (colored semi-transparent plate) 3, and some of the light 1
The light 0-b illuminates the colored dial base color, and the other part of the light 10-a passes through the printed layers 5 and 6 of the characters and scales.

The above structure gives a clear and soft feel.

The present invention solves the drawbacks of the conventional structure not by reducing the brightness difference (although there is a limit), but by making the brightness difference (large).

That is, if the character printing layer 5 and the scale printing layer 6 are white and semitransparent, and the dial 3 is green, blue, etc. semitransparent, the character printing layer 5 and the scale printing layer 6 have almost the same luminance as the dial 3. They are the same (may be a little off...due to the passing of light), but the difference in brightness is large, giving a clear and delicate feeling.

In this way, since the disadvantages of the conventional structure are solved by the difference in brightness, the color combination of the character and scale printing layers 5, 6 and the dial plate 3 is important.

As mentioned above, the invention according to the present invention can prevent eye fatigue due to its clear and soft feel, and it can be manufactured at a lower cost than the conventional ones since the dial base color printing layer of the conventional structure is not required. It is.

In addition, if you use opaque ink (for example, white opaque ink) to print the letters and scales instead of semi-transparent ink, the letters and scales will be white when the meter is not illuminated, and when the meter is illuminated. At times, it is possible to create a dial with the impression that the surrounding background color stands out and the letters and scales appear dark and sunken.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the appearance of a speedometer, FIG. 2 is a sectional view showing a conventional meter dial, and FIG. 3 is a sectional view showing a meter dial according to an embodiment of the present invention. 1...Speedmeter, 2...Pointer,
3...Dial plate, 4...Light guide plate, 5...
...Character printing layer, 6...Scale printing layer, 1
0... Lighting lamp.

Claims (1)

[Scope of utility model registration request] In a meter dial whose letters and scales are illuminated by transmitted light, the meter dial is formed of a translucent plate with a predetermined background color, and the letters and scales are placed on the surface of the meter dial with the base color of the meter dial. A meter dial plate characterized in that it is formed of a translucent printing layer of a predetermined color with greater brightness.