JP2578008Y2 - Information display device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information display device which is installed on a road or in a road work vehicle and displays road works or other road information by predetermined characters, figures or symbols.

[0002]

2. Description of the Related Art Conventionally, as a road information display panel for displaying road works or various road information, as shown in FIG.
A lamp chamber 52 is formed by providing a front lens 51 on the front of the housing 50, and a printed board 5 installed on a back plate of the lamp chamber 52.
3 are arranged in a two-dimensional direction to form a display section, and a plurality of light emitting elements 54 such as LEDs are arranged in a predetermined shape, and all or one of the light emitting elements 54, 54. A structure in which the units are turned on or blinked simultaneously or sequentially is used.

[0003]

However, in the configuration of the above-mentioned conventional road information display panel, a large number of light emitting elements 54 are used. Since the base 53 and the housing 50 are seen through the front lens 51, they shine white and have a different appearance from the surrounding colors. Further, when the light emitting element 54 is turned on, there is a problem that halation is caused by interference of light and not only the outline of the display is blurred, but also the light emitting element 54 is tilted due to vibration, and unevenness of light is formed. Was.

[0004] The present invention has been made in view of the above problems, and when the light emitting element is not lit, the casing and the front lens surface appear to be uniform, and the visibility at the time of lighting is good.
It is another object of the present invention to provide an information display device in which the light emitting element does not tilt due to vibration.

[0005]

In order to achieve the above-mentioned object, an information display device according to the present invention comprises a lamp chamber having a front lens provided on a front surface of a housing so as to have a predetermined shape. In a display device in which a plurality of light-emitting elements are arranged in a two-dimensional direction to constitute a display section in the lamp chamber, the light-emitting elements are arranged on a printed board and are made of an elastic material such as rubber or soft synthetic resin.
Through holes are formed in the black elastic holding member so as to correspond to the respective light emitting elements, and the top of the light emitting element is formed in each through hole of the elastic holding member.
Each light emitting element such that the end faces the front side hole end of the corresponding through hole
The It is an Abstract that fits.

[0006]

According to the above arrangement, the top ends of the arranged light emitting elements are provided.
The (light emitting portion) faces the front side hole end of the through hole of the elastic holding member.
As described above, the structure fitted at a time, that is, the structure in which the gap between many light-emitting elements is filled with the black elastic holding member, makes the printed board or the casing invisible through the front lens,
When the light emitting element is not lit, the casing and the front lens surface appear to be uniform. In addition, since the arranged light-emitting elements have a structure in which the gap between the light-emitting portions is filled with a black elastic holding member, there is no halation to the surroundings when the light-emitting element is turned on, the display outline becomes clear, and the display at the time of lighting is clear The visibility becomes good. Furthermore, the gap between the arranged light emitting elements is filled with an elastic holding member,
Since the structure supports each light emitting element , the light emission of the light emitting element
In addition to preventing tilting of the light emitting element on the printed circuit board during manufacturing, the tilting is corrected by fitting the elastic holding member, and the arrangement of the light emitting elements is aligned.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the information display device according to the present invention will be described below with reference to the drawings. FIGS. 1 to 4 show an information display device according to the present invention, and the present embodiment shows an information display device 1 which is used by being mounted on a rear body of a road work vehicle or the like. A lamp chamber 5 is formed by sealing a front opening 3 of a container 2 having a shape with a front lens 4. The interior of the lamp room 5 constitutes a display section 6 for forming road information such as a detour direction. In this embodiment, four sections of display sections 6, 6,... They are arranged in the direction. Each of the display units 6
A plurality of light-emitting elements 8, 8,... Composed of a plurality of light-emitting diodes (LEDs) or light-emitting chips are arranged in a two-dimensional direction in a matrix or honeycomb shape on a printed board 7 to form an arrow symbol. 9 is the printed board 7
A plurality of through-holes 10, 10... Corresponding to the respective light emitting elements 8, 8... Arranged above are formed, and a black or elastic material such as rubber or soft synthetic resin having appropriate elasticity is formed. Are soldered at predetermined positions on the printed circuit board 7, and the top ends (light emitting portions) of the light emitting elements 8, 8... Correspond to the corresponding through holes 10, 10,.
Are arranged so as to face the end of the hole on the front side, and the gap between the arranged light emitting elements 8, 8,... Is filled with the elastic holding member 9.

The housing 2 is provided around a lens mounting bracket 12 having a G-channel cross section on the outer periphery of the front surface of a back plate 11 fixedly supporting the printed board 7.
3 and a cover frame 14 having an angled cross section is fixedly provided on the front and side surfaces of the lens mounting bracket 12 to form a rectangular frame structure. On the inner edge 12 a of the lens mounting bracket 12, bent claws 15, 15... Are formed at appropriate intervals, so that the front lens 4 is inscribed in the cover bracket 14.
After being dropped along a, all the bent claws 15 are bent to the rear side of the front lens 4 to fix the front lens 4. Reference numeral 16 denotes a sealing agent having appropriate elasticity filled and sealed in a gap between the outer periphery of the front lens 4 and the inner edge 12a of the lens mounting bracket 12, and the gap secures a width of about 1 to 10 mm around the front lens 4. It is configured to do so.

The display units 6, 6,... Are configured to supply electric power from an external source such as a vehicle power supply or the like so that they can be simultaneously or selectively turned on or blinked. According to the arrow symbol according to the embodiment, as shown in FIG. 5, by selecting any one of the arrow directions and lighting them all at once, as the road information of the “left arrow row” or the “right arrow row”, Not only can it be used, but also by sequentially lighting it in the direction of the arrow, the movement of the display of the arrow symbol can be given, and the visibility can be improved.

Incidentally, the cover bracket 14 can display a zebra mark composed of a diagonal stripe pattern of yellow and camphor if necessary to enhance the gazeability, as shown in FIG. The information display device 1 can be used by being attached to a rear part of a vehicle body such as a road work vehicle a.

Further, as shown in FIG. 6, the information display device 1 according to the present invention comprises a road information panel 17 mounted on a road work vehicle a.
Can also be used as a sub-display section of That is, the embodiment shows a structure in which the information display devices 1 and 1 are provided along both sides of the main display unit 18 displaying a rightward arrow,
By performing operations such as blinking the display units 6, 6... Of the two information display devices 1, 1, the visibility of the main display unit 18 can be improved.

[0012]

Advantages of the Invention The information display device according to the present invention is configured as described above, so that the visibility of the display on the road information panel or the information display device can be improved . In addition, during assembly, even if the soldered light emitting element is slightly tilted, it can be fitted to the elastic holding member at once, and it is naturally corrected in this fitted state, and a large number of possible to place the light-emitting element in position and that Do. Therefore, it has features such as easy assembly of the information display device and securing mass productivity, and the practical effect after the implementation of the present invention is extremely large.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view showing a main part of an embodiment of an information display device according to the present invention.

FIG. 2 is a partially cutaway front view of the information display device.

FIG. 3 is a rear view of a main part of the information display device.

FIG. 4 is an exploded perspective view of a main part showing a structure of a bent claw of a front lens attachment portion.

FIG. 5 is a front view showing a lighting operation state of the information display device.

FIG. 6 is a perspective view showing a usage example of the information display device according to the present invention.

FIG. 7 is a vertical sectional view showing a main part of a conventional information display device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Information display apparatus 2 Case 4 Front lens 6 Display part 7 Printed board 8 Light emitting element 9 Elastic holding member 10 Through hole 17 Road information board 18 Main display part

Claims (1)

(57) [Scope of request for utility model registration] 1. A lamp chamber is formed by providing a front lens on the front of a casing, and a plurality of light emitting elements are arranged in a two-dimensional direction so as to have a predetermined shape, and a display section is formed in the lamp chamber. In a display device, the light emitting elements are arranged on a printed board,
A through hole is formed in a black elastic holding member made of an elastic material such as a synthetic resin so as to correspond to each light emitting element, and a top end of the light emitting element corresponds to each through hole of the elastic holding member.
An information display device , wherein each light emitting element is fitted so as to face a front end of a through hole .