JPH0449546Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an indicating instrument installed in a car, a motorcycle, a small boat, an agricultural machine, etc., and particularly to a lighting device in an indicating instrument.

[Prior art]

Generally, for this type of indicator, the display part of the indicator is placed at the rear in order to improve visibility when illuminating the display part of the indicator such as scales and numbers at night. Transmitted light type display board illumination is used in which transmitted light is illuminated in a desired color using irradiated light from an illumination lamp.

As an example of display board illumination of such an indicating instrument, for example, the display board is formed of a translucent resin such as polycarbonate, and display parts such as letters and scales are printed on the surface of the display board in a desired color, for example, white ink. is printed or painted, and the background color part is printed or painted with a light-opaque treatment, for example, with black ink that does not transmit light, while leaving the form of the display part intact.

Therefore, during nighttime illumination, the illumination light from the illumination lamp provided behind the display board directly or indirectly illuminates the back side of the display board, and this light does not pass through the display part of the display board. As a result, the display section is illuminated in a desired color such as white.

[Problem that the invention attempts to solve]

In the case of such a lighting device for an indicating instrument, the irradiation light from the illumination lamp is irradiated onto the display board side depending on the positional relationship between the internal equipment, such as the instrument body, and the illumination lamp. There is a problem in that the irradiated light may be blocked, and the illumination effect of the display section will be halved.

[Purpose of invention]

This idea was devised by focusing on the above-mentioned problem, and involves forming a display board by overlapping two substrates, and forming a convex part in the center of the lower display board that is laminated. At the same time, a light guide part is formed on at least a part of the convex part, and the irradiated light from the illumination lamp is transmitted through the light guide part of the display board, so that the display board or the display part formed at least in the outer part of the convex part is formed. At the same time, by reflecting and guiding the irradiated light indirectly from between the instrument case and the display board to illuminate the display board or the display part, the lighting effect on the display board or the display part can be improved. It is an object of the present invention to provide a lighting device for an indicating instrument that can increase the

[Means for solving problems]

In order to achieve the above object, the present invention forms a display board with display parts such as letters and scales on a transparent substrate, and fixes this display board to the instrument body with screws etc. In an indicating instrument comprising an instrument body with a plate attached thereto housed in an instrument case and a lighting lamp for illuminating the display plate mounted inside the instrument case, a convex portion is provided in the center of a translucent substrate. a first display board having a concave portion in its outer part; a second display board is stacked and arranged at a constant interval from the convex part of the first display board, and at least the first display board a display part is provided in the concave part of the first display board, and a light guide part is formed in the entire area or a part of the convex part of the first display board to allow the irradiation light from the illumination lamp to pass therethrough, and A light beam guiding portion is provided in which a gap is formed between a peripheral edge of a display board and an inner wall of the instrument case, and the irradiation light from the illumination lamp is directed to a convex portion of the first display board; and the instrument case. The display section is formed so as to be illuminated through a gap between the display panel and the periphery of the first display panel.

〔Example〕

Embodiments of the present invention will be described below based on the accompanying drawings.

1 to 3 show an illumination device for an indicating instrument applied to a motorcycle or the like, each showing an embodiment of the present invention.

In the figure, a meter body 2 is housed and fixed inside a meter case 1, and a pointer 4 is attached and fixed to the upper end portion of a pointer shaft 3 that constitutes a part of the meter body 2. Further, a lighting lamp 5 for night illumination is attached to the bottom of the instrument case 1 so as to face inward of the instrument case 1.

Further, a display plate 8 is fixed to a plate 6 provided on the upper part of the instrument body 2 via screws 7 or the like. The display board 8 in this embodiment is, for example,
The first display board 11 is made of a substrate made of polycarbonate or the like having translucent properties, and has a convex part 9 in the center part and a concave part 10 in the outer part of the board. It is made up of a convex portion 9 of a first display board 11 and a second display board 12 which are of the same size and stacked at a constant interval.

In addition, the first and second display plates 11 and 12 are each formed with an insertion hole 13 through which the base side of the pointer shaft 3 and the pointer 4 are inserted, and each display plate is connected by the screw 7. Mounting holes 14 for fixing and holding the display plates 11 and 12 are respectively formed, and screw portions for fixing the respective display plates 11 and 12 are provided in the portion of the plate 6 on the upper end side of the instrument body 2 corresponding to the positions of the mounting holes 14. A fixing hole 6A is formed in the plate 6 of the instrument body 2 by inserting the screw 7 into the mounting hole 14 of each display plate 11, 12.
The display plates 11 and 12 are fixedly held on the meter body 2 by tightening the screws.

In this embodiment, a light-shielding layer 16 of, for example, dark blue is printed on the back surface of the recessed portion 10 of the first display board 11, except for the portion that will become the display portion 15 for characters, numbers, etc. formed, and furthermore,
On this light-shielding layer 16, a display layer 17 of, for example, white is formed on the entire back surface of the recessed portion 10 by means such as printing, and the color of the 15 display portions is determined by this display layer 17. be done. Further, in this embodiment, no printing, painting, or other treatment is applied to the front and back surfaces of the nine concave portions of the first display board 11, and the untreated portions of the convex portions 9 are used to prevent illumination from the illumination lamps 5. A light beam guide portion 18 is formed to guide the irradiation light beam. A cylindrical spacer portion 19 is integrally provided on the back side of the convex portion 9 of the first display plate 11 so as to surround the mounting hole 14 position, and the height of the spacer portion 19 allows the second The gap size between the back side of the display board 12 and the front side of the convex portion 9 provided on the first display board 11 is set.

Further, the second display panel 12 is provided with a reflective layer 2 having a good reflection effect, for example, a white color, on the entire surface of the second display panel 12.
0 is formed by means such as printing, and a display portion 15A serving as at least a scale or the like is provided on the reflective layer 20.
A display layer 17A having good translucency, for example, a light blue color, is formed by printing or other means on the portion where the display layer 17A has a light-shielding effect, except for the scale portion forming the display portion 15A. good, for example,
A light shielding layer 16A of black color or the like is formed, and each display section 1
5, 15A first and second display boards 11, 1
2 are arranged in a stacked manner to constitute the display board 8 of the entire indicator.

Further, a gap 21 is provided between the outer peripheral edge of the first display board 11 and the inner wall portion of the instrument case 1,
Above this gap 21 is a reflector plate 22 which is placed on the upper end surface of the instrument case 1 and which allows the irradiated light from the illumination lamp 5 to be reflected and guided to each of the display plates 11 and 12.
is installed.

Note that a see-through plate 23 made of a transparent synthetic resin material is fitted to the upper open side of the instrument case 1.

As in the above configuration, the display board 8 is housed in the instrument case 1 and attached to the upper part of the instrument body 2.
a first display board 11 having a convex part 9 in the central part of a translucent substrate and a concave part 10 in the outer part thereof;
A light ray guiding portion is formed by the convex portion 9 of the first display plate 11 and the second display plate 12 stacked and arranged at a constant interval, and is provided on the convex portion 9 of the first display plate 11. When the irradiation light from the illumination lamp 5 is guided to the back side of the second display board 12 through the illumination lamp 18, the display section 15 provided in the ten recesses of the first display board 11 is indirectly illuminated. At the same time, a portion of the irradiated light from the illumination lamp 5 is transmitted to the periphery of each display board 11, 12 through a gap 21 provided between the inner wall of the instrument case 1 and the periphery of the first display board 11. Guide the light upward,
By indirectly irradiating the guided irradiation light to the display section 15 of the first display board 11 through the reflection plate 22, the illuminating light 5 is transmitted from the central part and the outer peripheral part of the display board 8. The irradiated light can be efficiently guided toward the surface of the recess 10 provided in the first display board 11 and the display section 15, and there is an effect that a bright and clear illumination display can be performed.

Further, in this embodiment, the display section 15 of the first display board 11 is formed of the display layer 17 of a transparent color such as white, so that the display section 15 is used for transmitted illumination, and the surrounding area of the display section 15 is The ten recesses can be brightly illuminated by the indirect light.

In addition, a portion of the light rays irradiated onto the light guide portion 18 provided on the convex portion 9 of the first display panel 11 is reflected and guided to ten concave portions of the first display panel 11. However, a part of the other light rays irradiates the display section 15A provided on the second display board 12, and the display section 15A consisting of the display layer 17A is transmitted and illuminated.
The scale forming the display section 15A is easily readable.

Note that a space can be provided between the first display board 11 and the second display board 12 with an appropriately set dimension by the spacer part 19, so that the irradiation light from the illumination lamp 5 can be Effectively the first display board 11
Once the illumination light has been guided above each display board 11, 12, it is reflected off the back surface of the transparent board 23 and reaches the front surface of each display board 11, 12. This also has the effect of illuminating the subject to some extent.

FIG. 4 shows a second embodiment of this invention, in which a light-shielding layer 16 having good light-shielding properties, such as black, is formed on the entire surface of the recess 10 of the first display board 11. , display parts 15 and 15A such as letters and scales are formed on this light shielding layer 16, respectively,
A reflective layer 20 of, for example, white color with good reflection efficiency is formed on the entire surface of the second display panel 12, and a light-shielding layer 20, which is the background color of the second display panel 12, is formed on the reflective layer 20. A light-shielding layer 16A having good properties, such as black color, is formed on the entire surface.

In addition, a light-shielding layer 16B is formed on a part of the front surface and back surface of the convex portion 9 of the first display plate 11, and this light-shielding layer 16
The amount of light transmitted by the light guide section 18 is arbitrarily set by B, and the amount of light irradiated from the illumination lamp 5 is adjusted so that the display sections 15 and 15A provided in the recess 10 of the first display board 11 and the recess are adjusted. The degree of illumination of 16 light-shielding layers provided in 10 display portions and serving as a background color is set as appropriate.

Further, in this embodiment, the spacer portion 19 is
The first display board 11 is integrated from the back side of the display board 12.
The height of the spacer portion 19 determines the gap between the display panels 11 and 12. Therefore, the illumination light from the illumination lamp 5 is
Similarly to the above-described embodiment, the light beam is indirectly transmitted through the light guide section 18 provided at the center of the display panel 8 and the gap section 21 formed by the gap between the inner wall section of the instrument case 1 and the outer peripheral section of the first display panel 11. The first
The 16 light-shielding layers of the recess 10 provided in the display board 11 and the display portions 15 and 15A can be well illuminated.

In addition, in the embodiment described above, the first display board 11
Although the spacer portion 19 is integrally formed on the second display plate 12, a separately provided cylindrical spacer portion may be interposed between each display plate 11 and 12 to set the gap size. Alternatively, the pointer 4 may be formed of a translucent material such as acrylic resin, and the indicator portion of the pointer 4 may be made to emit light using the irradiated light from the illumination lamp 5.

In addition, display portions 15 and 15A formed on the display board 8
may be provided in accordance with the shape of the display board 8, for example, a rectangular shape, and
The illumination of the display sections 15 and 15A may be determined as appropriate depending on the layout, external design, etc., such as a combination of transmitted illumination and indirect illumination, or a method of illuminating only with indirect light.

[Effect of idea]

In this invention, a display board with display parts such as letters and scales is formed on a translucent substrate, and this display board is fixed to the instrument body via screws, etc., and the instrument body to which this display board is attached is attached. is housed in an instrument case, and an illumination lamp for illuminating the display board is mounted in the instrument case, wherein the translucent substrate has a convex part in the center part and a concave part in the outer part thereof. forming a first display board having a first display board, a second display board stacked and disposed at a constant interval from the convex part of the first display board, and a display part at least in the concave part of the first display board; In addition, a light guide portion is formed in the entire area or a part of the convex portion of the first display board to allow the irradiated light from the illumination lamp to pass therethrough, and the peripheral edge of the first display board and A light ray guiding portion is provided in a convex portion of the first display plate to form a gap between the inner wall portion of the instrument case and the illumination light from the illumination lamp, and the instrument case and the first
Since the display section is formed so as to be illuminated through the gap between the display panel and the peripheral edge of the display panel, there is an effect that the illumination effect on the display panel or the display section can be enhanced.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of the main parts showing an embodiment of this invention, Fig. 2 is a sectional view showing the instrument body of Fig. 1 assembled into the instrument case, and Fig. 3 is Fig. 2. Fig. 4 is an exploded perspective view of the main parts showing the second embodiment of this invention, and Fig. 5 shows the instrument body of Fig. 4 assembled into the instrument case. FIG. DESCRIPTION OF SYMBOLS 1... Instrument case, 2... Instrument body, 5... Lighting lamp, 8... Display board, 9... Convex part, 10... Recessed part, 11... First display board, 12... Second display board. Display board, 15, 15A...Display section, 16, 16A, 1
6B... Light shielding layer, 17, 17A... Display layer, 18
...Light beam guide section, 19...Spacer section, 20...
Reflective layer, 21... void, 22... reflective plate.

Claims (1)

[Scope of utility model registration request] A display board with display parts such as letters and scales is formed on a transparent substrate, this display board is fixed to the instrument body via screws, etc., and the instrument body with this display board attached is placed inside the instrument case. In the indicator instrument comprising a lighting lamp installed in the instrument case for storing and illuminating the display board, the first indicator has a convex part in the center part of the translucent substrate and a concave part in the outer part of the translucent substrate. A display board is formed, a second display board is stacked and arranged at a constant interval from the convex part of the first display board, and a display part is provided in at least the concave part of the first display board, and the first display board is provided with a display part. A light guide portion that allows the irradiated light from the illumination lamp to pass through the entire area or a part of the convex portion of the display board, and the peripheral edge of the first display board and the inner wall of the instrument case. and a light beam guiding section that forms a gap between the illuminating light and the convex portion of the first display board, and between the instrument case and the periphery of the first display board. 1. An illumination device for an indicating instrument, characterized in that the display section is illuminated through a gap in the display section.