JP2581227Y2 - Lighting equipment for signs, signs, etc. - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial application field] The present invention relates to the front and rear display surfaces of characters and the like.
The present invention relates to a lighting device such as a sign or a signboard usually provided with a display box provided on both sides and usually installed on a road.

[0002]

2. Description of the Related Art In conventional lighting devices for signs, signboards, and the like, an illumination lamp using a ring-shaped fluorescent lamp is a single unit, and a spare lamp is not provided.

[0003]

[Problems to be Solved by the Invention] In the sign such as a sign using an illuminating lamp, if the illuminating lamp is defective or not lit at night or in a tunnel or the like, visual confirmation is extremely poor, and the sign presented is extremely poor. Not only does it not work, but in the case of road signs, it can cause traffic accidents.

[0004] In addition, the illumination lamp has flickering when lighting,
In particular, in a cold region or a cold season, the number of seconds of the flicker becomes long, and there is a problem that it is difficult to distinguish whether the lamp is defective or just flicker.

[0005] In view of the above, the present invention eliminates the possibility of defective or unlit lighting lamps, and furthermore, both front and rear display surfaces.
An object of the present invention is to prevent traffic unevenness of light , to maintain the visual confirmation of signs such as signs, and to contribute to ensuring traffic safety.

[0006]

According to the present invention, as shown in FIGS. 1, 2, and 3, a display surface of a character or the like is arranged on both front and rear sides.
A display box 1, which is fixed to the inside of the display box 1 ring having the
-Type fluorescent lamp manufactured by Daiichi lamp 2, previously for said first lamp 2
It is arranged in a position that is arranged in the rearward direction and slightly deviated in the vertical direction and / or the horizontal direction from the fluorescent lamp tube thickness .
A ring-shaped fluorescent lamp-made second illuminating lamp 3, an illuminating lamp failure detecting sensor 4 (FIG. 3) for detecting failure or non-lighting of the first illuminating lamp 2, and a switching circuit 14 of the sensor 4
And a switch 15 for switching the power supply from the circuit side of the first lighting lamp 2 to the circuit side of the second lighting lamp 3 by the output of the first lighting lamp 2 for displaying the used lighting lamp.
Second confirmation lamp for first confirmation lamp 5 and second illumination lamp 3
6 is provided outside the display box 1 .

[0007]

In the above-mentioned means for solving the above problems, switching of the illumination lamp and the like will be described from the internal mechanism of the illumination lamp failure detection sensor 4 with reference to the circuit diagram of FIG.
When the first illuminating lamp 2 which is a fluorescent lamp is initially turned on by changing 00V to DC 12V and flowing to the rectifier circuit, the sensor circuit 10 detects that there is a case where non-lighting or flickering may occur for several seconds before the first lighting lamp 2 is turned on. Then, the detection circuit 11 is contacted. However, if the timer circuit 12 does not reach the length of a certain number of seconds or more, the first illumination lamp 2 is continuously maintained. Another point is that if a momentary power failure occurs due to lightning or the like after lighting, the sensor circuit 10 senses the momentary power failure and the detection circuit 11
At this time, the timer circuit 12 does not work because the first lighting lamp 2 is turned on, and the switching circuit 14 is directly contacted. Therefore, the holding circuit 13 stops the communication to the switching circuit 14 for a certain number of seconds. , The first illumination lamp 2 is continuously maintained.

However, if the first lighting lamp 2 is clearly defective or cut off, the detection circuit 11 contacts the switching circuit 14 through the holding circuit 13 to switch the switch 15 to the first lighting lamp 2. The circuit is switched to the circuit of the second illumination lamp 3. Further, the lighting is switched from the first confirmation lamp 5 to the second confirmation lamp 6 accordingly.

Further, the first lighting lamp and the second lighting lamp are vertically moved.
(And) or left and right, slightly larger than the fluorescent tube thickness
By installing and, light unevenness on the display surface of both the front and rear
Avoid occurring.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1, 2, and 3. A triangular box type display box 1 having display surfaces for characters and the like on both front and rear sides, and the display box Fixed inside box 1
Ring-shaped fluorescent lamp-made first illuminating lamp 2,
A ring-shaped fluorescent lamp-made second illuminating lamp 3 provided in a position parallel to the front-rear direction and a little larger than the fluorescent lamp tube thickness in the up-down direction or (and / or the left-right direction); Illumination lamp failure detection sensor 4 (FIG. 3) for detecting non-lighting, and switching circuit 1 of this sensor 4
A switch 15 for switching the power supply from the circuit side of the first lighting lamp 2 to the circuit side of the second lighting lamp 3 by the output of the switch 4
And

A first confirmation lamp 5 for the first lamp 2 and a second confirmation lamp 6 for the second lamp 3 for displaying the used lamp are provided outside the display box 1. It is characterized in that the auxiliary lighting is turned on when the lighting is abnormal.

Further, a first reflector 7 and a second reflector 8 are provided in a roof shape at the base of the rectangular box in the display box 1 in order to further enhance the display efficiency of the illuminating lamp.

In order to reduce illumination unevenness and increase efficiency, the first illuminator 2 and the second illuminator 3 which are light emitters are used.
If they are installed at the same position so as to overlap each other, light unevenness occurs on the display surface that is turned off. Therefore, the positions of the first lighting lamp 2 and the second lighting lamp 3 are shifted vertically (and) or left and right. The installation avoids uneven light.

A pair of display surfaces 1a and 1b of the display box 1 are provided.
Depending on the location, the display box 1
A first reflector 7 and a second reflector 8 are installed at the base of the inside in a roof shape.

Referring to the circuit diagram of FIG. 3, switching of the illuminating lamp and the like will be described from the internal mechanism of the illuminating lamp failure detecting sensor 4. When the first illuminating lamp 2 is initially turned on, the sensor circuit 10 detects that the non-lighting or flickering may occur for several seconds before the first lighting lamp 2 is turned on, and notifies the detection circuit 11. However, the timer circuit 1
If the number of seconds does not reach a certain length due to 2,
The first lighting lamp 2 is continuously maintained. Another point is that, when a momentary power failure occurs due to lightning or the like after lighting, the sensor circuit 10 detects the momentary power failure and contacts the detection circuit 11, but since the first lighting lamp 2 has been turned on, the timer circuit Since the switch 12 does not work and the switching circuit 14 is directly connected, the holding circuit 13 stops the connection to the switching circuit 14 for a certain number of seconds, and the first illumination lamp 2 is maintained.

However, if the first lamp 2 is obviously defective or cut off, the detection circuit 11 contacts the switching circuit 14 through the holding circuit 13 to switch the switch 15 to the first lamp 2. The circuit is switched to the circuit of the second illumination lamp 3.

Further, the lighting is switched from the first confirmation lamp 5 to the second confirmation lamp 6 accordingly. Reference numeral 16 denotes a ballast, 17 denotes a glow lamp for a first illumination lamp, and 18 denotes a glow lamp for a second illumination lamp.

It should be noted that the present invention is not limited to the above embodiment, and it is needless to say that many modifications and changes can be made to the above embodiment within the scope of the present invention.

[0019]

[Effects of the Invention] As is clear from the above description, according to the present invention, the lights installed inside and outside of illuminated road signs, signboards, signs, and the like are divided into two systems and automatically switched when the lighting is defective. In this way, the utility of road signs, signboards, and the like is maintained without stopping. Further, the display of the confirmation lamp allows the defective illumination lamp to be quickly replaced.

Further, the illumination unevenness is reduced and the efficiency is reduced.
Ring-shaped first lighting and second lighting
If the lights are installed in the same position so that they overlap,
Light unevenness occurs on the display surface on the other side. However, in the present invention
Is to move the first lamp and the second lamp up and down (and) or left and right
Since it was set slightly shifted from the fluorescent tube thickness,
Avoiding uneven light on both front and rear display surfaces
it can.

[0021] This has excellent effects such as contributing to comfortable driving of the driver and smooth traffic, and contributing to suppression of traffic accidents.

[Brief description of the drawings]

FIG. 1 is a front view showing an inside of a display box excluding a display surface according to an embodiment of the present invention.

FIG. 2 is a side view showing a positional relationship of an illumination lamp and the like inside the display box.

FIG. 3 is an electric system control circuit diagram inside the display box.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Display box 2 First illumination lamp 3 Second illumination lamp 4 Failure detection sensor 5 First confirmation lamp 6 Second confirmation lamp 7 First reflector 8 Second reflector 14 Switching circuit 15 Switching switch

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G08G 1/095 G08G 1/097 G09F 13/00-13/46 F21V 21/00-25/12

Claims (1)

(57) [Scope of request for utility model registration] 1. A display box having display surfaces for characters and the like on both front and rear sides, a first fluorescent lamp made of a ring-shaped fluorescent lamp fixed inside the display box, and a front and rear direction with respect to the first lighting lamp. Parallel and less than the fluorescent tube thickness in the vertical or horizontal direction
A second lamp made of a ring-shaped fluorescent lamp provided at a greatly displaced position, a lamp failure sensor for detecting failure or non-lighting of the first lamp, and a switch of the sensor.
A switch for switching the power supply from the circuit side of the first lighting lamp to the circuit side of the second lighting lamp by the output of the switching circuit, and a switch for the first lighting lamp for displaying the used lighting lamp.
The first confirmation lamp and the second confirmation lamp for the second illumination lamp,
A sign provided outside the display box ,
Lighting devices such as signboards.