JPH10143097A - Bulletin board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a bulletin board easy to see even in the bark, to reduce the remodeling cost or fitting cost, and to reduce the trouble for maintenance after the bulletin board is fitted by fitting the bulletin board, which uses a thin type back light, to the surface of a bus stop indicator with a power source. SOLUTION: The light self-emitting bulletin board 2 is completed by sliding and fitting the projection part of a bottom plate in a groove formed of intermediate pressing plates 4t and 4b and then fitting and fixing the intermediate part 1B of a frame with a screw (u). The back light of a light guide plate type which uses a thin and light cold cathode-ray tube is used at the top 1A of the frame and a narrow place on the surface of the main body 1 of the bus indicator. Then the bulletin board 2 finished by fitting a film where a timetable is printed, a transparent plate for protecting the printed film, and their attaching and detaching mechanism is inserted between the intermediate pressure plates 4t and 4b of the bus stop indicator and fitted to the intermediate part 1B of the frame. Consequently, the light self-emitting bus top bulletin board 2 can be formed which adopts a postfitting system and is light and saving space.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bulletin board for a bus stop sign (hereinafter referred to as a bus stop bulletin board) which specifies a company name, a stop name, a timetable, an operation system diagram and the like of a route bus and various shuttle buses.

[0002]

2. Description of the Related Art In a conventional bus stop bulletin board, a metal pipe is set up on a concrete base, a bus company name, a stop name and a destination are written on a disk attached above the concrete pipe, and a square plate on which a timetable is written below is written. There is an old-shaped thing just pasted, and then a signboard type thing with a thickness of about 10 cm using an aluminum frame has become widespread. More recently, electronic equipment has been installed in the thickness of about 10 cm. Then, as the bus approaches, there are also high-tech objects that turn on the indicator lamps and announce that the bus is coming, but these are not equipped with a lighting system, so when it gets dark, the bus stop Light from street lights and the like provided nearby was used, and it was unavoidable that a timetable with particularly small characters became difficult to read.

[0003] Among the objects currently in use, there is a lantern-type stop tower that draws the flow of a tram stop, and these are equipped with a lighting system and can read small characters in the timetable even when it becomes dark. Some things are made so that they are not difficult.
This type of lantern lighting system has the drawback that the life of the light source is short because ordinary fluorescent lamps, which are widely used for home use, are used. It was convenient in the trams and trolleybus industries, which had a lot of electricity maintenance factors.
As described above, the stop tower is a sturdy and large-sized product suitable for a tram, and its installation cost is high. Therefore, the tower is unsuitable for a bus stop that requires simple and space-saving, and has a low penetration rate.

[0004]

As a bus stop bulletin board,
10cm thick using a widespread aluminum frame
Due to its structure, there is no space for a lighting system due to its structure, but there is no power supply, and a high-tech type device with electronic equipment in a thickness of about 10 cm (hereinafter referred to as high-tech type). In spite of the fact that the power supply is secured, there is no space for installing the lighting system, that is, it was considered impossible to install the lighting system as long as the current product is assumed.

[0005] On the other hand, in the market, the ratio of elderly people among bus users has been increasing, and the contents of notices are easy to see even in darkness, which is inconvenient for elderly people and people with poor eyes. In order to eliminate the problem, there was a need for a device such as lighting a bus stop bulletin board. However, as mentioned above, bus stop bulletin boards are divided into large and sturdy models equipped with a lighting system in advance, and simple and space-saving models without a lighting system. It is divided into high-tech type or not.
Therefore, the model to be adopted is selected based on the presence or absence of the minimum required functions.When a function other than the initially assumed function is required, it is usual to add a new budget and replace it with another model. In addition, this expense and trouble hindered the expansion and spread of easy-to-read bus stop bulletin boards with backlight required by the market.

[0006]

SUMMARY OF THE INVENTION In order to eliminate the above-mentioned obstacles and to spread a bus stop bulletin board with a backlight, which is easy to see even in the dark, according to the demand of a market with a high ratio of elderly people, the cost of remodeling or installation is low. After installation, a product that requires less maintenance is required.To do this, use a thin, long-life backlight to create a self-luminous bulletin board that is thick enough to fit on a conventional bus stop bulletin board. It is considered that a method of easily attaching and forming the surface of the bus stop bulletin board by attaching it to the surface of the corresponding bus stop bulletin board or inserting it in place of the panel panel on the surface is an effective means.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention provides a simple self-luminous device by mounting a bulletin board using a thin backlight on the surface of a bus stop sign with a power source without a conventional lighting system to form the surface of the bus stop sign. The back light used for this is a light guide plate type developed as a backlight for liquid crystal display elements, or a thin backlight of a direct light source type using a U-shaped tube or a W-shaped tube. It was selected and used as appropriate from among them.

As described above, according to the present invention, a bulletin board utilizing a thin backlight of a light guide plate type is attached to the surface of a bus stop sign, or inserted in place of a panel plate on the surface.
It is easy to make a self-luminous bus stop sign board with low remodeling cost or installation cost. For example, in the case of the high-tech bus stop bulletin board where power supply is secured, about two mounting holes inside the main body and a backlight After performing additional work to the extent that a lead wire with a power supply connector is attached, insert the thin backlight instead of the front panel, connect the connector, etc. to make a self-luminous bulletin board, On the bulletin board, necessary posting items, for example, a translucent thin plate printed with a timetable, or a transparent plate superimposed on a translucent film and posted, during the daytime, while being similar to the conventional timetable, At night, it is a timetable that is easy to see by the light of the backlight. As long as you use a bus stop bulletin board with a secured power supply, a self-luminous bus stop sign bulletin board (hereinafter referred to as a voluntary Can be to that bus stop bulletin board.).

In order to save maintenance and inspection costs after mounting, the use of a cold cathode tube as a light source for the backlight can reduce the life span of a general fluorescent lamp used in a conventional lighting system. From 4,000 hours to 5,000 hours to a cold cathode tube life of 10,000 hours to 20,000 hours
In addition to being able to extend the time to 0 hours, there is no repetition of lighting and non-lighting that is often seen at the end of the life of a hot cathode tube including a general fluorescent lamp. The use of a cathode ray tube not only prolongs the life of the tube, but also greatly extends the practical product life, such that there is no problem if the lamp is lit at a certain level of brightness even if it becomes darker than the specified value. Is what you can do.

Further, by using a thin backlight of a light guide plate type or a direct light source type using a light emitting diode called an LED, which has a longer life than a lamp using a conventional glass tube, the cold cathode tube is used. The service life can be extended as described above, and the service life of the light source element can be extended without having to consider the service life of the light source element. Therefore, the maintenance and inspection cost after mounting can be greatly reduced as compared with the conventional lamp type.

According to the present invention, the surface luminance is 2,000 cd / m ² , even though the size of the illuminated surface is as large as A3, in a shallow place of only 15 mm between the surface plate of the bus stop sign where the power source is secured and the top of the frame. By using a thin and bright backlight with a thickness of 12 mm, and attaching a film printed with a timetable and a bulletin board part finished to a thickness of 15 mm or less even if a mechanism for attaching and detaching the printed film is added, it is thin, bright, easy to see, It is a retrofit bulletin board.

In addition, the above method may be applied to a notice portion other than the timetable portion of the bus stop sign, for example, a portion in which the name of the bus company, the name of the stop or the destination is specified, or a bus system diagram portion on the back side of the timetable. It can also be used for posting bus stops for pick-up buses at inns and various organizations.

[0013]

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

FIGS. 1 to 3 show a self-luminous bus stop bulletin board according to a first embodiment of the present invention. An aluminum frame 1A having a structure in which an intermediate portion 1B can be partially removed by a screw u, a self-luminous A bulletin board 2, an upper bulletin board 3, an aluminum intermediate holding plate 4t, 4b for fixing a self-luminous bulletin board, an electric lead-in wire 5, an antenna 6 of a high-tech device, a lamp 7 for notifying the approach of a bus, a column 8, a concrete-made Base 9
It is constituted by. The self-luminous bulletin board 2 is attached to the groove formed by the intermediate holding plates 4t and 4b by sliding the overhang portion 2C of the bottom plate into the groove, and then the intermediate portion 1B of the frame.
And fix it with screws u to complete.

FIG. 4 is a structural view of a light guide plate type backlight 2Z frequently used in the present invention. A diffuser plate 2Za, a light guide plate 2Zb, and a reflection sheet 2Z whose surfaces are light emitting surfaces of the backlight are shown.
c, the components of the lower body box 2Zd, the upper body box 2Ze, and the light source 2Zf are assembled with almost no gap, and the surface of the backlight of the direct light source type including the row lamp type or the surface required for uniforming the luminance of the light emitting surface. Since there is no need for a light diffusion space provided between the light source and the reflector that covers the light source,
It is possible to reduce the thickness accordingly, and still obtain a bright issuing surface with high luminance uniformity. It should be noted that since the direct light type backlight is commonly found in home lighting equipment as well as in flashlights, it is understood that this is a known fact and the drawing is omitted.

According to the first embodiment, the vertex 1 of the frame
A, in a narrow place of only 15 mm on the surface 1D of the main body 1 of the bus stop sign, the thickness is 12 mm, and the luminance is 2,000 cd / m.
² , using a light guide plate type backlight 2Z using a thin, bright and cold negative tube, attaching a timetable printed film, a transparent plate for protecting the printed film, and a mechanism for attaching and detaching the same. Notice board 2 finished within 15mm
A self-luminous bus stop bulletin board which is bright and saves space at a low retrofitting cost by a retrofitting method of being inserted between the intermediate holding plates 4t and 4b of the bus stop sign and mounting the intermediate portion 1B of the frame.

FIGS. 5 and 6 and the second embodiment correspond to the first embodiment.
The upper bulletin board 3 on which the name of the bus company, the name of the stop, the destination and the like are written is also lit to make it stand out. Therefore, the description of the overlapping part with the first embodiment will be omitted. In this embodiment, the light guide plate type backlight 13Z is assembled with a translucent film on which a bus company name, a stop name, a destination and the like are written, and a transparent resin plate covering the same, thereby forming a self-luminous type upper bulletin board 13X. The bottom 13C of the bulletin board
After inserting from the presser plate 14t side to the lower side of the upper part of the frame 11A, fixing with the presser plate 14t and connecting with the power supply, the removed middle part 11B of the frame is attached and screwed to fix the upper bulletin part 13. Complete.

The upper display section 13 of the present embodiment uses a light guide plate type backlight 13Z using a cold cathode tube as a light source to obtain the same thickness and required brightness as those of the timetable 2, In addition to the bulletin board 2, the upper bulletin board 13 is also illuminated to make it easy to see and stand out as a self-luminous bus stop bulletin board.

In the third embodiment shown in FIGS. 7 and 8, a self-luminous bulletin board with a backlight is installed on the front and back sides of a bus stop where many routes are used repeatedly, and a large number of timetables are displayed for easy viewing. It is made possible. That is, a translucent film (not shown) in which the company name, the stop name, the destination, and the like attached to the upper bulletin boards 23H and 23J and the timetable of the multi-line attached to the bulletin boards 22H and 22J are displayed. The written translucent film (not shown) is lit up by the light of the backlight provided in each of them, thereby forming a bright, easy-to-read, double-sided self-luminous bus stop bulletin board.

As described above, in this embodiment, assuming a bus stop where many routes are used repeatedly, that is, a bus stop with a large number of users, the bus stop is made more conspicuous than in the second embodiment.
As shown in the cutaway perspective view of FIG. 8, the upper notice portions 23H and 23J are thinned down to a thickness close to that of the light guide plate type backlight of the bulletin boards 22H and 22J, while being a direct light source type using a cold cathode fluorescent lamp W-tube 23W. By using the backlight, the brightness of the upper sign sections 23H and 23J is increased, that is, the upper part is brightened to make it more conspicuous.
In this description, the description of the same parts as those of the above embodiment is omitted, and
The same applies hereinafter.

Fourth Embodiment A self-luminous bus stop bulletin board is obtained by replacing the light source of the backlight 2Z of the first embodiment with a light emitting diode 32Z (hereinafter referred to as LED) according to FIG.
That is, a light guide plate type backlight 32Z using an LED light source is used. In order to prolong the lamp replacement cycle, which is one of the important objectives of the present invention, a long-life self-luminous bus stop plate is used as a light source with an LED having a longer life than a cold-cathode tube as a light source. is there.

FIG. 9 shows L used for a self-luminous bus stop bulletin board.
FIG. 3 is a structural diagram of a light guide plate type backlight using an ED as a light source. The light guide plate type backlight 32z using a surface of a diffusion plate 32Za as a light emitting surface includes a light guide plate 32Zb and a reflection sheet 3.
2Zc, lower box 32Zd, upper box 32Ze, light source 3
2Zf component parts are assembled with almost no gap, and the LED chip used here is 2mm x 3mm
Since the size is as small as 1.5 mm, the thickness of the backlight is further reduced. In this case, a color conversion sheet recently sold may be used in place of the diffusion plate 32Za.

Fifth Embodiment A self-luminous bus stop bulletin board uses the backlight 2Z of the bulletin board 2 of the first embodiment of the first embodiment as shown in FIG.
This is a light source type backlight 42Z directly under the ED. The light source type backlight 42Z directly under the LED includes the diffusion plate 4
2Za, main body lower box 42Zd, main body upper box 42Ze, light source 4
2Zf, a printed circuit board 42Zp, and the direct light source type backlight 42Z is 2 mm × 3
A required number of LED chips each having a size of 1.5 mm × 1.5 mm are mounted on the printed circuit board 42Zp in accordance with the required luminance.
By using Zf, a thin, lightweight backlight 42Z of a direct light source type can be realized. The thin, lightweight backlight 42Z that satisfies the required luminance is easy to handle and reduces the time and effort of installation. The objective is to reduce the cost required for the modification and installation, and to reduce the maintenance and cost after the installation due to the long life.

Further, a lamp 7 (FIG. 1) conventionally used for notifying the approach of the bus, which is conventionally attached to a high-tech bus stop sign, is incorporated in a backlight of a light source type directly under the LED, and the lamp 7 is mounted. It is also possible to change to a long-life LED.

As described above, the present invention is characterized by using a long-life light source such as a cold-cathode tube or LED for the purpose of extending the life of the lamp used for these bus stop signs. It is not limited to the same light source, and the combination is changed as necessary as in the present embodiment, that is, the backlight with the LED light source in the upper part and the cold cathode tube as the light source in the lower part of the timetable. Using a light,
The present invention is characterized in that a long-life light source is used as required.

[0026]

As described above, according to the present invention, the lamp replacement cycle can be extended at least twice as long as that of the conventional lamp by using a long-life light source such as a cold-cathode tube or an LED. At the same time, a bulletin board using a light guide plate type or a thin type using a W-shaped tube or a thin type using an LED, and a backlight using a direct light source type is used. This has a great effect on the spread of self-luminous bus stop sign bulletin boards required by the market and easy to see even in the dark.

[Brief description of the drawings]

FIG. 1 is a perspective view of a self-luminous bus stop bulletin board showing a first embodiment of the present invention.

FIG. 2 is a perspective view of a self-luminous bulletin board displaying the timetable of FIG. 1 described above.

FIG. 3 is a partially cutaway perspective view showing the mounting state of the self-luminous bulletin board.

FIG. 4 is a structural diagram of a light guide plate type backlight.

FIG. 5 is a perspective view of a part of a self-luminous bus stop bulletin board showing a second embodiment of the present invention.

FIG. 6 is a structural diagram of the upper bulletin board according to the second embodiment.

FIG. 7 is a side view of a part of a self-luminous bus stop bulletin board showing a third embodiment of the present invention.

FIG. 8 is a structural diagram of a light guide plate type backlight for an upper bulletin board according to the third embodiment.

FIG. 9 is a structural diagram of a light guide plate type backlight using an LED light source used in a fourth embodiment of the present invention.

FIG. 10 is a structural view of a direct light source type backlight using an LED light source used in a fifth embodiment of the present invention.

[Explanation of symbols]

1 ... body of self-luminous bus stop bulletin board 1A ... frame 1B, 11B ... middle part of frame 1T ... top of frame 1D ... surface of main body 2 ... self-luminous bulletin board 2C ... self-luminous Bottom plate of type bulletin board 22H, 22J… Bulletin board 2Z, 32Z… Light guide plate type backlight 2Za …… Light guide plate type backlight diffuser 2Zb …… Light guide plate type backlight 2Zc …… Light guide plate type backlight Reflective sheet 2Zd: Lower body of light guide plate type backlight 2Ze: Upper body of light guide plate type backlight 2Zf: Light source of light guide plate type backlight 3, 13, 23H, 23J: Upper sign 4b, 4t , 14t: Intermediate holding plate 5: Electric lead-in wire 6: Antenna of high-tech device 7: Lamp to notify the approach of bus 8: Support 9: Concrete base u: Screw 13A: Light-emitting portion of upper bulletin board 13C: Bottom of upper bulletin board 13X: Self-luminous upper bulletin board 13Z: Self-luminous upper bulletin board Backlight part 23W: W-shaped tube of cold cathode tube 32Za: Light guide plate type backlight diffuser with LED light source 32Zb: Light guide plate type backlight light guide plate with LED light source 32Zc: Light guide plate type backlight with LED light source Reflective sheet 32Zd: Lower body of light guide plate type backlight using LED light source 32Ze: Upper body of light guide plate type backlight using ED light source 32Zf: Light source of light guide plate type backlight using LED light source 42Z: Direct light source type back Light 42Za: Diffusing plate of backlight directly under LED light source system 42Zd: Light source under LED PCB backlight main body lower box 42Ze ...... LED directly below the light source system directly below the backlight of the main body upper box 42Zf ...... LED light source backlights source 42Zp ...... LED directly below the light source backlights

Claims (3)

[Claims] 1. A translucent film that specifies necessary notices on a thin backlight in a bulletin board for a bus stop sign used for a stop of a route bus or a pick-up bus for an inn or various organizations. Or, a transparent board is superimposed to form a thin bulletin board that can change the content of the bulletin board. The bulletin board is mounted on the surface of a bus stop sign that can be equipped with power supply or power supply, and the backlight is turned on. Bulletin board for self-luminous bus stop sign. 2. A self-luminous bus stop signboard according to claim 1, wherein a light guide plate type or a thinned direct light source type backlight using a cold cathode tube as a light source is used. Light-emitting bus stop signboard. 3. The self-luminous bus stop signboard according to claim 1, wherein a light guide plate type using a light emitting diode called an LED as a light source or a thin backlight of a direct light source type is used. Bulletin board for self-luminous bus stop sign.