JP5132016B2 - Meter structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a meter structure, and more particularly, to a meter structure for an automobile that displays speed, engine speed, various warning lights, and the like.
[0002]
[Prior art]
5A and 5B are diagrams showing a conventional automobile meter structure 201. FIG. 5A is an exploded perspective view showing the overall structure, and FIG. 5B is a cross-sectional view. 6A shows a display screen before power-on, and FIG. 6B shows a display screen after power-on.
[0003]
As shown in FIG. 5A or 5B, the conventional automobile meter structure 201 is for displaying the speed of the automobile, the engine speed, various warning lights, etc. on the display unit 202 of the meter body. A self-luminous device 203 (for example, VFT) is disposed. A smoke front glass 205 is arranged so as to cover the display unit 202 of the meter body and to face the driver.
[0004]
In such a meter structure 201, the smoked front glass 205 before turning on the power is jet black as shown in FIG. 6A, and the driver cannot see anything. Then, as shown in FIG. 6B, the smoke front glass 205 after turning on the power emits light from the light emitting device 203 (for example, VFT), so that the jet black smoke front glass 205 Numbers, letters, symbols, and pictograms representing speed, engine speed, various warning lights, etc. are lit or blinked.
[0005]
[Problems to be solved by the invention]
However, the meter structure 201 described above does not normally display when the power is turned on because the entire area of the smoked front glass 205 facing the driver looks uniform jet black, such as various indications including direction indications, high beams, fog lights, and fuel warning lights. I can't figure out where warning lights are displayed.
Therefore, this meter structure 201 has a disadvantage that the driver is burdened during traveling because the driver needs to watch the entire display surface.
[0006]
In other words, the meter structure 201 described above requires the driver to pay attention to the entire area of the smoke front glass 205 during driving, or the driver must empirically store the location where all displays are displayed. There was a need for improvement.
[0007]
The present invention has been made to satisfy the above-mentioned desires, and an object of the present invention is to provide a meter structure capable of grasping a region that a driver should pay attention to in advance, thereby reducing the burden on the driver. That is.
[0008]
[Means for Solving the Problems]
In order to achieve the above-described object, the present invention provides a meter structure including a meter main body that emits and displays light, as described in claim 1, and is a planar first see-through portion that covers a display portion of the meter main body. And a planar second fluoroscopic portion disposed on the surface side of the first fluoroscopic portion, and a light guide plate disposed between the first fluoroscopic portion and the second fluoroscopic portion, and the light guide An uneven portion made of the same material as the light guide plate, which is a part of the light guide plate , on the surface of the plate, and the light guided by the light guide plate diffuses and emits light more strongly than other portions. An uneven portion is provided to represent the region, and the uneven portion is an area within the display portion that is not normally displayed when the power is turned on but is displayed as appropriate according to the situation, and around the area to be noticed by the driver in advance. It is arranged to surround .
[0009]
Here, as an uneven | corrugated | grooved part, the coating film etc. which apply | coated the rib, sandblast, the predetermined coating material, etc. can be illustrated, for example. And as a coating film, the surface may be smooth or uneven | corrugated, and surface roughness is arbitrary.
In the meter structure configured in this way, the driver can grasp in advance the location where various warning lights etc. are arranged through the second fluoroscopic part by the light lines appearing on the surface of the light guide plate, and the various warning lights etc. You can quickly check the lighting.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS.
1A and 1B are diagrams showing a meter structure of an automobile according to the present embodiment, where FIG. 1A is an exploded perspective view showing the overall structure, and FIG. 1B is a cross-sectional view.
2A and 2B are diagrams showing the display surface, where FIG. 2A shows a display surface before power-on, and FIG. 2B shows a display surface after power-on.
[0012]
As shown in FIG. 1, an automobile meter structure 10 according to the present embodiment includes a self-luminous device 13 (for displaying an automobile speed, an engine speed, various warning lights, etc. on a display unit 12 of the meter body. For example, VFT) is arranged. Smoke glass 14 (first see-through part) is arranged so as to cover display unit 12 of the meter body, and front glass 15 (second see-through part) is placed on the surface side of smoke glass 14 so as to face the driver. Is arranged. Further, an optical plate 11 is installed between the smoke glass 14 and the front glass 15.
Further, as shown in the cross section of FIG. 1B, the light guide plate 11 is provided with an uneven portion 16 on the surface thereof. Light is transmitted through the light guide 11 from the light source 18 and diffused by the concavo-convex portion 16, so that this portion emits light strongly and emits light linearly.
[0013]
The state of the display surface in this embodiment will be described with reference to FIG.
As shown in FIG. 2A, first, the linear light-emitting unit 22 emits light around the self-light-emitting device 13 for displaying the speed of the automobile, the engine speed, various warning lights, and the like. It can be clearly seen by enclosing it in a ring shape.
Next, as shown in FIG. 2B , when the self-luminous device (for example, VFT) emits light, the speed of the automobile, the engine speed, various warning lights, etc. are displayed in the linear light-emitting unit 22 The numbers, characters, symbols, and pictograms that are represented are displayed in a lit or blinking manner.
[0014]
With the above configuration, since the linear light-emitting unit 22 emits light and appears in a ring shape around the display of the vehicle speed, engine speed, various warning lights, etc., the driver is provided with various warning lights. It is possible to grasp the location in advance and quickly check the lighting of various warning lights.
[0015]
In addition, in the display section 12 of the meter main body behind the smoke glass 14, unnecessary portions such as the segments of the self-light emitting device 13 are not visible when not lit, and only the light emitting portion is visible when lit. For this reason, the driver can surely read the correct values of the speed and the engine speed and determine whether various warning lights are lit or not.
[0016]
Next, an example of a specific shape of the uneven portion 16 will be described with reference to FIG.
3A, 3B, and 3C are enlarged sectional views of the concavo-convex portion 16.
First, in the specific example A, as shown in FIG. 3A, a convex portion 16a is formed on the optical plate 11. Further, the surface of the convex portion 16a is sandblasted to produce fine irregularities.
[0017]
Next, in the specific example B, as shown in FIG. 3B, fine irregularities 16b are formed on the surface of the optical plate 11 by sandblasting.
Next, in the specific example C, as shown in FIG. 3C, a recess 16c is formed in the optical plate 11.
[0018]
In order to improve the visibility of the display unit, it is preferable to form an antireflection film on the surface of the portion of the optical plate 11 surrounded by the concavo-convex part 16 by AR coating or the like.
[0019]
Instead of providing the concave and convex portion 16 on the optical plate 11, the light is reflected along the thickness direction by the tapered surface 17 provided at the edge of the through hole 19 formed in the optical plate 11, as shown in FIG. It may be formed as possible. As shown in FIG. 4A, a tapered surface 17 provided at the edge of the through hole 19 formed in the optical plate 11 is formed .
[0020]
Further, as shown in FIG. 4B, a tapered surface 17 is formed at the edge of the through hole 19 formed in the optical plate 11 , and a convex portion 16a with sandblasting is formed on the upper surface. The shape is a more preferable shape. The light guide plate 11 in the region sandwiched between the light lines formed by the tapered surface 17 has a through hole 19 formed therein. Thus, it goes without saying that an antireflection film need not be provided in order to increase the visibility of the display unit, as in the case where the concavo-convex part 16 is used. Moreover, in embodiment mentioned above, although the transparent surface glass was employ | adopted, the form which employ | adopted the smoked surface glass which has a predetermined light transmittance is also contained in this invention.
[0021]
【Effect of the invention】
As described above, according to the present invention, as described in claim 1, the meter structure includes a meter main body that performs light emission display, and is a planar first fluoroscopic portion that covers the display portion of the meter main body. And a planar second fluoroscopic portion disposed on the surface side of the first fluoroscopic portion, and a light guide plate disposed between the first fluoroscopic portion and the second fluoroscopic portion, and the light guide Through the second see-through portion, the surface of the plate is provided with a concavo-convex portion having translucency for expressing light by emitting light stronger than other portions by diffusing the light guided by the light guide plate. The driver can grasp in advance the location where various warning lights and the like are arranged by the light lines appearing on the surface of the light guide plate, and can quickly check the lighting of the various warning lights and the like.
[Brief description of the drawings]
1A and 1B are views showing a meter structure of an automobile according to the present embodiment, in which FIG. 1A is an exploded perspective view showing an overall structure, and FIG. 1B is a cross-sectional view.
2A and 2B are diagrams showing a display surface of a meter of an automobile according to the present embodiment, in which FIG. 2A is a display surface on which only a linear light emitting unit emits light, and FIG. 2B is a display surface on which a self light emitting device emits light. Indicates.
FIG. 3 is a cross-sectional view of a main part for explaining an example of a specific shape of an uneven portion.
FIG. 4 is a cross-sectional view of a main part for explaining an example of a specific shape of a tapered surface provided at an edge of an optical plate.
5A and 5B are diagrams showing a conventional automobile meter structure, in which FIG. 5A is an exploded perspective view showing the overall structure, and FIG. 5B is a cross-sectional view.
6A and 6B are diagrams showing a display surface of a conventional automobile meter, in which FIG. 6A shows a display surface before power-on, and FIG. 6B shows a display surface after power-on.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Meter structure 11 Light-guide plate 12 Display part 13 Self-light-emitting device 14 Smoke glass 15 Surface glass 16 Uneven part 16a Convex part 16b Fine uneven part 16c Concave part 17 Tapered surface 18 Light source 19 Through-hole 22 Linear light-emitting part

Claims (1)

A meter structure having a meter body for displaying light emission,
A planar first see-through part covering the display part of the meter body, a planar second see-through part arranged on the surface side of the first see-through part, the first see-through part and the second see-through part; A light guide plate installed between
On the surface of the light guide plate, an uneven portion made of the same material as that of a part of the light guide plate and made of the same material as the light guide plate, the light guided by the light guide plate diffuses more strongly than other portions. An uneven part for representing a line is provided, and the uneven part is an area in the display part that is not normally displayed when the power is turned on but is appropriately displayed according to the situation, and is an area that the driver should pay attention to in advance. A meter structure characterized by being arranged to surround the periphery .

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