JP4708181B2 - road sign - Google Patents

Description

  The present invention relates to a structure of an internally illuminated road sign, and in particular, includes a box-shaped road sign body having a light-transmissive display part on the front surface and an illumination part that illuminates the display part from the inside of the road sign body. It relates to the structure of the road sign provided.

  2. Description of the Related Art Conventionally, as a road sign installed on a road, there is an internally illuminated road sign that irradiates a display board provided with an illumination device inside with back (transmission) illumination. Such a road sign includes a main body case, a display panel that is detachable from the main body case and is semi-translucent, a fluorescent lamp as a lighting device mounted in the main body case, and an appropriate position. Are provided with a lighting device such as a ballast or a glow lamp, and the fluorescent lamp is turned on at night to improve the visibility of the display panel (see, for example, Patent Document 1).

In recent years, light-emitting diodes (LEDs) with low power consumption and long life have begun to be used as light sources for various light-emitting devices, instead of light bulbs and fluorescent lamps.
When an internally illuminated road sign using LEDs as a light source instead of a fluorescent lamp is to be realized, an LED illumination device in which a plurality of LEDs are usually arranged on a substrate is used as the illumination device.
JP 2002-69946 A

  However, the LED and the bag cannot be used permanently, and there is a possibility that the LED lighting device is broken due to the LED element being disconnected. In such a case, there is a problem that the worker has to replace the LED lighting device with a new one usually at a high place with the road sign still installed on the road.

  In addition, because of the restrictions on the structural strength and aesthetic appearance of the main body case of the road sign, the outlet of the lighting device has positional or size restrictions, and it is difficult to replace the LED lighting device from the outlet. There was a problem.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a reasoning sign having a structure in which an LED lighting device can be easily replaced even at a high place while being installed on a road. .

  It is another object of the present invention to provide a reasoning sign having a structure in which an LED lighting device can be easily replaced even with a takeout port subject to positional or size restrictions.

The present invention employs the following configuration in order to solve the above problems.
That is, according to one aspect of the present invention, the road sign of the present invention includes a box-shaped road sign body having a light-transmitting display section on the front surface and an illumination section that illuminates the display section from the inside of the road sign body. The illuminating part is configured by arranging a plurality of light emitting diodes on the front surface of a plate-like substrate, and is a removable top cover part provided in an opening on the upper surface of the road sign body And a guide part for guiding the insertion / extraction of the illumination part from the opening to the inside / outside of the road sign body and for installing the illumination part at a position suitable for illuminating the display part. Features.

In addition, the road sign of the present invention preferably has wires that are supported at the left end and the right end so that the illumination unit is guided to the guide unit while being suspended.
In the road sign of the present invention, when the illumination unit is installed on the guide unit, a plurality of illumination units are arranged in contact with each other in the vertical position, and when the illumination unit is suspended by the wire, It is desirable that the plurality of illumination units have a gap with respect to each other in the vertical position by a wire stopper provided on the top.

  In the road sign of the present invention, each of the plurality of lighting units is a surface in which an upper end surface and a lower end surface are inclined in the front-rear direction, and a lower end portion of the upper lighting unit arranged in the vertical relationship The surface and the upper end surface of the lower illumination unit are preferably in surface contact with each other when installed on the guide portion.

In the road sign of the present invention, each of the plurality of lighting units preferably has a trapezoidal side surface.
In the road sign of the present invention, it is desirable that each of the plurality of lighting units has a parallelogram shape on the side surface.

  In the road sign of the present invention, the guide unit guides and installs the left or right side of the illumination unit, and the second guide unit guides and installs the right or left side of the illumination unit. It is desirable that the first guide portion is provided to be rotatable around the second guide portion.

According to the present invention, it is possible to easily replace the LED lighting device even when the road sign is still installed on the road and at a high place.
Further, according to the present invention, it is possible to easily replace the LED lighting device even in the case of a road sign having a takeout port subjected to positional or size restrictions.

Hereinafter, embodiments to which the present invention is applied will be described with reference to the drawings.
FIG. 1 is an overview of an internally illuminated road sign.
In FIG. 1, a road sign 1 includes a road sign main body 2 having a display unit 21 on a front surface, and an illumination unit 3 (not shown) that illuminates the display unit 21 from the inside of the road sign main body 2 (see FIG. 2 and the like). Is provided.

  The road sign main body 2 has, for example, a hollow box shape having a width (width) of 2400 millimeters, a height (length) of 1650 mm, and a depth (thickness) of 400 mm. For example, the display unit 21 attaches a blue or green translucent acrylic plate or fiber sheet obtained by cutting out shapes such as letters, symbols, and figures to the surface of a white translucent (light transmissive) acrylic plate or fiber sheet. Thus, when the light illuminated by the illumination unit 3 is irradiated from the back side, the entire display surface 21 including a cutout portion of characters and the like can be clearly seen.

FIG. 2 is an overview diagram inside the road sign, and FIG. 3 is an overview diagram inside the road sign body.
In FIG. 2, the illuminating unit 3 is an LED illuminating device configured by arranging a plurality of light emitting diodes 31 on the front surface of a plate-like substrate, and the light emitting diodes 31 emit white light to thereby display the display unit 21. Illuminate. The detailed shape and the like of the illumination unit 3 will be described later with reference to FIGS. And this illumination part 3 is arrange | positioned inside the road sign main body 2 by being guided by the guide part 31 for installing in the position suitable for illuminating the display part 21. FIG.

This illumination part 3 can be removed from the inside of the road sign main body 2, and when the illumination part 3 is removed from the road sign main body 2, it becomes as shown in FIG.
4 is a longitudinal sectional view of the road sign as viewed from the side, and FIG. 5 is a transverse sectional view of the road sign as viewed from above.

  As shown in FIGS. 4 and 5, on the upper surface of the road sign body 2, for example, the lighting unit 3 that is damaged or old and needs to be replaced is taken out from the inside of the road sign body 2, and new illumination is performed. An opening 25 is provided to allow the portion 3 to enter the road sign body 2. When the road sign 1 is used, an upper cover part 23 that can be removed to close the opening 25 is fixed to the road sign body 2 with a screw or the like (not shown).

  The guide unit 22 guides the insertion / extraction of the illumination unit 3 from the opening 25 to the inside / outside of the road sign body 2 and is a position suitable for the illumination unit 3 to illuminate the display unit 21. Is fixed by a support 24 at a position close to the front surface (display unit 21 side), for example, 80 mm from the display unit 21. The support portion 24 supports the guide portion 22 inside the road sign body 2 by connecting the guide portion 22 with the bottom, back and front upper portions of the road sign body 2, for example.

Next, the illumination unit 3 will be described in detail with reference to FIGS.
As described above, the illuminating unit 3 is an LED illuminating device configured by arranging a plurality of light emitting diodes 31 on the front surface of a plate-like substrate, and the light emitting diodes 31 emit white light, thereby causing the display unit 21 to emit light. Illuminate. The illumination unit 3 is configured by arranging a plurality of illumination units 3A having an appropriate size, for example, a size of 500 mm long × 440 mm wide.

6 is a perspective view of the lighting unit, FIG. 7 is a cross-sectional view of the lighting unit viewed from above, and FIG. 8 is a vertical cross-sectional view of the lighting unit viewed from the side.
As shown in FIGS. 6 to 9, the illumination unit 3A has, for example, 120 white light-emitting diodes 31 arranged on a 500 mm long × 440 mm wide substrate. And the upper end part surface and lower end part surface of 3 A of illumination units incline in the front-back direction of 3 A of illumination units. In addition, through holes 32 for passing the wires 4 described later are provided at both left and right ends of the lighting unit 3A.

Next, the relationship between the illumination unit 3 </ b> A and the guide unit 22 will be described with reference to FIGS. 9 to 11.
As described above, the upper end surface and the lower end surface of the illumination unit 3A are inclined in the front-rear direction of the illumination unit 3A, but there are four shapes of the illumination unit 3A depending on the difference in inclination. That is, a first shape in which the upper end surface of the lighting unit 3A is inclined downward from the back side toward the front side and the lower end surface is inclined upward from the back side toward the front side (see FIGS. 6 and 8), the upper end A second shape in which the part surface is inclined upward from the back side to the front side and the lower end surface is inclined downward from the back side to the front side. A third shape that is inclined downward, and a fourth shape in which both the upper end surface and the lower end surface are inclined upward from the back side toward the front side. The lighting unit 3A having the first and second shapes has a trapezoidal side surface, and the lighting unit 3A having the third and fourth shapes has a parallelogram shape on the side surface.

FIG. 9 is a diagram illustrating a state in which the illumination units having the first and second shapes are arranged in the guide portion.
In FIG. 9, the second shape illumination unit 3 </ b> A, the first shape illumination unit 3 </ b> A, and the second shape illumination unit 3 </ b> A are guided into the guide portion 22 from above. The lower end surface of the upper illumination unit 3 and the upper end surface of the lower illumination unit 3 arranged in the vertical position relationship are in surface contact with each other when the guide unit 22 is installed. .

  When the inclined surfaces come into surface contact with each other, the illumination unit 3 is pressed against the guide portion 22, and the illumination unit 3 that is a light source is not shaken by a slight vibration.

FIG. 10 is a diagram illustrating a state in which the lighting units having the first and second shapes are connected.
In FIG. 10, the illuminating unit 3 composed of the illuminating units 3A having the second, first, and second shapes is supported by the wires 4 that pass through the through holes 32 provided at the left and right ends of each illuminating unit 3A. Are connected. This wire 4 is one continuous wire and passes under the lower end surface of the lowermost lighting unit 3A. The lighting unit 3 composed of these three lighting units 3A is suspended by the wire 4. The guide unit 22 is guided while being guided. The through hole 32 is provided near the front surface of the illumination unit 3A where the light emitting diode 31 is disposed.

  When the plurality of illumination units 3A are installed on the guide portion 22, the plurality of illumination units 3A are arranged in contact with each other in the vertical position, and are provided on the wire 4 when suspended by the wire 4. The plurality of illumination units 3 have gaps in the vertical position by a wire stopper (not shown).

FIG. 11 is a diagram illustrating a state in which the illumination unit having the third shape is arranged in the guide unit.
In the example shown in FIG. 9 described above, two different types of lighting units 3A must be combined, but in the example shown in FIG. 11, only the lighting units 3A having the same shape need to be combined.

FIG. 12 is a view for explaining how to take out the LED display devices arranged at both ends.
As described above, in order to take out or insert the illumination unit 3 from the inside of the road sign body 2, the opening 25 provided on the upper surface of the road sign body 2 is used. The size of the opening 25 may be limited due to various restrictions. In that case, the illumination unit 3 (illumination unit 3A) installed on the left and right ends of the road sign body 2 cannot be taken in and out.

  Therefore, as shown in FIG. 12, the left end side is such that the portion that guides and installs the left side of the illumination unit 3 is rotatable about the rotation shaft 26 in the portion that guides and installs the right side of the illumination unit 3. The guide part 22 is configured.

Similarly, the guide portion 22 on the right end side is configured so that the portion that guides and installs the right side of the illumination unit 3 is rotatable about the rotation shaft 26 in the portion that guides and installs the left side of the illumination unit 3. To do.
By comprising in this way, the illumination part 3 installed in the right-and-left both ends in the road sign main body 2 can be taken in and out.

  In this case, the support portion 24 connects the guide portion 22 in the vicinity of the rotation shaft 26 and the road sign body 2 only to the bottom surface and the upper portion of the front surface of the road sign body 2, thereby The guide portion 22 is supported.

  As mentioned above, although the embodiment of the road sign to which the present invention is applied has been described, the present invention is not limited to the above-described embodiment, and various modifications are possible within the scope not departing from the gist of the present invention. Can take configuration or shape.

It is a general-view figure of an internally illuminated road sign. It is an external view inside a road sign. It is a general-view figure inside a road sign main part. It is the longitudinal cross-sectional view which looked at the road sign from the side. It is the cross-sectional view which looked at the road sign from the top. It is a perspective view of an illumination unit. It is the cross-sectional view which looked at the illumination unit from the top. It is the longitudinal cross-sectional view which looked at the illumination unit from the side. It is a figure which shows a mode that the illumination unit of a 1st and 2nd shape was arrange | positioned in a guide part. It is a figure which shows a mode that the lighting unit of the 1st and 2nd shape was connected. It is a figure which shows a mode that the illumination unit of a 3rd shape has been arrange | positioned in a guide part. It is a figure for demonstrating how to take out the LED display apparatus arrange | positioned at both ends.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Road sign 2 Road sign main body 3 Illumination part 3A Illumination unit 4 Wire 21 Display part 22 Guide part 23 Upper cover part 24 Support part 25 Opening part 26 Rotating shaft 31 Light emitting diode 32 Through-hole

Claims (5)

In a road sign comprising a box-shaped road sign body having a light-transmissive display part on the front surface and an illumination part that illuminates the display part from inside the road sign body,
The illumination unit is configured by arranging a plurality of light emitting diodes on the front surface of a plate-shaped substrate,
A detachable upper lid provided in an opening on the upper surface of the road sign body;
A guide unit for installing the illumination unit at a position suitable for illuminating the display unit while guiding the insertion / extraction of the illumination unit from the opening to the inside / outside of the road sign body;
Equipped with a,
Since the illumination unit is guided by the guide unit while being suspended, the illumination unit has wires supported at the left end and the right end, and when the illumination unit is installed on the guide unit, the plurality of illumination units are in a vertical position relationship. in is disposed in contact with each other, road signs by a wire stopper provided on the wire as they are suspended by the wire of the plurality of lighting units and wherein Rukoto to have a gap from each other in the vertical positional relationship. Each of the plurality of lighting units is a surface in which the upper end surface and the lower end surface are inclined in the front or back direction,
The lower end surface of the upper illumination unit and the upper end surface of the lower illumination unit arranged in the vertical position relationship are in surface contact with each other when installed in the guide unit. The road sign according to claim 1 . The road sign according to claim 2 , wherein each of the plurality of lighting units has a trapezoidal side surface. The road sign according to claim 2 , wherein each of the plurality of lighting units has a parallelogram shape on a side surface. The guide portion is
A first guide part for guiding and installing the left or right side of the illumination part;
A second guide part for guiding and installing the right side or the left side of the illumination part;
With
The road sign according to any one of claims 1 to 4 , wherein the first guide portion is provided so as to be rotatable around the second guide portion.

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