JPH08158322A - Internal illuminating guide sign - Google Patents

Abstract

PURPOSE: To provide a thin guide sign which can be illuminated at night. CONSTITUTION: A laminated layer of a name plat 1 and a light guide plate 2 are housed in a frame case. A lamp 4 is installed close to the upper end surface of the light guide plate 2. The name plate 1 is marked with the name of a spot or the next spot, at which a traffic signal mechanism is set up, on a light permeable plate surface. The light guide plate 2 is installed attached with a vehicle illuminating apparatus of the traffic signal mechanism and displays the name plate 1 inside a frame 9 by lighting up a lamp 4 at night. A fluorescent light is used for the lamp 4, which makes it possible to reduce the thickness of the internal illuminating sign.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a road sign, and more particularly to a guide sign such as a spot name sign and a notice light sign attached to a traffic signal light device.

[0002]

2. Description of the Related Art In FIGS. 5 (a) and 5 (b), a point name sign 14 is a small plate for displaying a place name of a road on which a traffic signal is installed, and is attached to a vehicle lamp 15. Normally, the arm 13 protruding from the signal column 12 for mounting the vehicle lamp 15 or the arm 1 protruding from the signal column 12 in parallel with the arm 13 of the vehicle lamp 15 is mounted.
6 is attached.

The conventional point name marker 14 is only a place name is marked on the reflective surface of the panel of the display board, and in the daytime in order to recognize the marking content of the point name marker 14 from the inside of the running vehicle. Each problem does not occur, but it is difficult to recognize the marking contents at night.

[0004]

However, if the sign is made to emit light by the illuminator, the marking content can be easily recognized even at night. Conventionally, external illumination type (external irradiation type) and internal illumination type (internal irradiation type) are generally known as illumination methods for signs. The external illumination type is a system in which a lighting tool is installed outside the display surface of the sign to illuminate the display surface of the sign from the outside, and the internal illumination type is a system in which light is transmitted from the inside of the sign to the display surface. . With either method, the contents of the sign can be clearly displayed at night, but if external lighting is used to illuminate the point name sign attached to the vehicular lamp, the light beam will also be transmitted to the vehicular lamp. Irradiation hinders signal display, and the use of the interior lighting system requires a capacity of the lamp house for incorporating the lighting fixture in the sign, which increases the thickness of the sign and increases the size of the sign. There is. This problem is also the same in the warning light sign attached to the vehicular lamp. The notice light sign is a sign that indicates the name of the point ahead of the traffic light.

An object of the present invention is to provide an internally-illuminated guide sign which can be illuminated at night with the content of the marking being thin.

[0006]

In order to achieve the above object, an internal lighting guide sign according to the present invention has a light guide plate, a name plate, a lamp, and a frame case, and is for a traffic signal vehicle. An internal-illumination type guide sign installed along with a lamp, the light guide plate is a transparent plate of acrylic resin, receives light rays from the end face of the plate and forms a surface light source on the plate surface, and the name plate is , The name of the point where the traffic signal is installed or the name of the point in front of the traffic signal is marked on the plate surface of the light-transmissive plate.The light guide plate and the name plate are laminated, and the lamp is Is a rod-shaped fluorescent lamp and is arranged close to the end face of the light guide plate.The frame case has a stack of the light guide plate and the name plate and a lamp built in, and the name plate faces the opening of the frame. To maintain the shape.

Further, a diffusion sheet is provided between the light guide plate and the name plate, and the diffusion sheet diffuses the light emitted from the light guide plate over the entire surface of the name plate.

Further, a reflection sheet is provided on the back surface of the light guide plate,
The reflection sheet forms the ground color of the name plate according to the light emission color.

[0009]

The light of the lamp enters the light guide plate from its end face and causes the plate surface of the light guide plate to emit light, and the light guide plate serves as a surface emission source. The diffusion sheet disperses the light on the entire surface of the name plate.
The name plate receives the light emitted from the light guide plate and displays the content marked on the plate surface. If the reflecting plate is made to emit light as the background color on the back surface of the light guide plate, the emitted background color gives contrast to the marking, or the content of the marking can be light-emitted and displayed with the light emission color of the background color. Since the lamp is not built inside the sign, it does not require a lamp house and can be made thin.In addition, a rod-shaped fluorescent tube is used for the lamp, and this is placed in a frame case that covers the light guide plate. Can be incorporated.

The lamp can be installed at any of the upper, lower, or both edges of the light guide plate, and the lamp can be installed in one piece or in two or more pieces.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2, the present invention comprises a combination of a name plate 1, a light guide plate 2, a frame case 3 and a lamp 4. The name plate 1 is a transparent or light-transmissive sheet, and the display surface is provided with a sign 6 such as a name of a place where a traffic signal is installed or a place name ahead thereof. The light guide plate 2 is a transparent plate made of acrylic resin or the like. The light guide plate 2,
The name plate 1 is a light guide plate 2 with a diffusion sheet 7 sandwiched between the plates.
The reflection sheet 8 is laminated on the back surface of the frame, and the frame case 3 is internally provided with the name plate 1 facing the opening of the frame 9. Lamp 4
Is a rod-shaped fluorescent lamp, which is arranged parallel to the upper edge of the light guide plate 2 and is housed in the frame case 3. The shape of the frame case 3 is not particularly limited. The frame case 3 holds the stack of the light guide plate 2 and the name plate 1 in place, exposes the plate surface of the name plate 1 in the frame 9 to cover the other surface of the stack, and the light guide plate 2
It is only necessary to have a space in which a fluorescent lamp can be installed as the lamp 4 at one edge, and to further provide an installation space for a ballast and a glow lamp necessary for lighting the lamp 4. As shown in FIG. 3, the lamp 4 has a light shield 10 on the outer surface except for the portion that irradiates the light guide plate 2 with light, and is arranged close to one end surface of the light guide plate 2 and the periphery of the lamp 4 is covered by a reflection cover 11. Surrounded. In addition, the end surface of the light guide plate 2 other than the light incident surface is optically shielded.

In the embodiment, when the power of the lamp 4 is turned on, the lamp 4 lights up and emits light, and the light incident from the end surface of the light guide plate 2 is evenly transmitted through the entire surface of the light guide plate 2, and the light guide plate 2 emits surface light. As the light source, the entire surface is uniformly emitted by the diffusion sheet 7, and the name plate 1 on the front surface is illuminated with the dispersed light, and at the same time, the reflection sheet 8 on the back surface is illuminated, and the reflection sheet 8 emits the background color of the sign 6. Therefore, the characters marked on the nameplate 1 can be clearly read from the front of the sign even at night.

The size of the conventional point name sign varies, but for example, 400 mm in length, 400 mm in width, and 60 m in thickness.
When a plate of m is used, a stack of the name plate 1 and the light guide plate 2 having the same size can be housed in a frame case 3 having a length of 600 mm, a width of 1300 mm, and a thickness of 100 mm, and the amount of protrusion to the front is There are few metal fittings on the back surface of the frame case 3, and this metal fitting is used as shown in FIG.
It can be attached to the arm 13 or 16 protruding from the signal column 12 as shown in (a) and (b). Regarding the relationship between the lamp 4 and the light guide plate 2, as shown in FIG.
In addition to installing one lamp 4 on the upper edge of the light guide plate 2, FIG.
As shown in (b), two short lamps 4 may be arranged,
Alternatively, the lamps 4 may be installed on both sides of the light guide plate 2 as shown in FIG.

[0014]

As described above, according to the present invention, a light guide plate is used, and guide signs such as a spot name marker and a notice light marker attached to a vehicle signal lamp by introducing light emitted from the outside into the light guide plate. Since it is internally illuminated, the visibility of the sign can be improved with almost no effect on the vehicular signal light, and a rod-shaped fluorescent lamp is used for the light guide plate lighting device. Since it is arranged in parallel with one edge of the light guide plate and is installed inside the frame, it is not necessary to provide a lamp house on the back side of the sign as in general internal lighting signs, therefore it is possible to make it thinner. Therefore, it has an effect that it can be installed on the arm of the signal pole like the conventional plate mark.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a sectional view of the same.

FIG. 3 is a diagram showing a relationship between a light guide plate and a lamp.

4A to 4C are other examples showing the relationship between the light guide plate and the lamp.

FIG. 5 is a diagram showing an installation procedure of a point name marker.

[Explanation of symbols]

 1 Name Plate 2 Light Guide Plate 3 Frame Case 4 Lamp 6 Marking 7 Diffusing Sheet 8 Reflective Sheet 9 Frame 10 Light Shield 11 Reflective Cover 12 Signal Pole 13 Arm 14 Point Name Marker 15 Vehicle Lamp 16 Arm

Claims (3)

[Claims] 1. An internally illuminated guide sign having a light guide plate, a name plate, a lamp, and a frame case, which is attached to a vehicular lamp of a traffic signal and is installed. A transparent plate made of acrylic resin that receives light rays from the end face of the plate and forms a surface light source on the plate surface.The name plate is the name of the point where the traffic signal is installed on the plate surface of the light transmissive plate or the traffic light. The name of the point in front of the traffic light is marked, the light guide plate and the name plate are stacked, and the lamp is a rod-shaped fluorescent lamp that is placed close to the end face of the light guide plate and has a frame. The internal lighting guide sign is characterized in that the case includes a light guide plate, a laminated name plate, and a lamp, and holds the name plate facing the opening of the frame. 2. The diffusion sheet is provided between the light guide plate and the name plate, and the diffusion sheet diffuses light emitted from the light guide plate over the entire surface of the name plate. Internal illuminated guide signs. 3. The internal lighting according to claim 1, wherein the light guide plate has a reflection sheet on the back surface thereof, and the reflection sheet forms the background color of the name plate by the color of the light emitted from the reflection sheet. Ceremony guide sign.