JP2975561B2 - Gaze guidance road signpost - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gaze guide road signpost, and more particularly to an improvement of a gaze guide road sign post incorporating a self-illuminating device.

[0002]

2. Description of the Related Art A gaze-guided road signpost is provided with a reflective sign band made of a reflexive reflective tape or the like on a pole in order to improve visibility to a driver or a pedestrian of a vehicle running at night. However, when the vehicle is traveling with the headlights directed downward with the light beam, the reflected light from the reflective marker band does not reach the driver sufficiently, and the visibility is reduced. In order to solve this problem, a self-illuminating type gaze guide sign pillar having a built-in light emitter such as a light emitting diode has been provided. This gaze-guided road signpost is disclosed in, for example, JP-A-6-108425 and JP-A-7-33162.
No. 1 publication.

[0003] The line-of-sight guidance signpost disclosed in Japanese Patent Application Laid-Open No. 6-108425 has a pole made of a steel pipe, a solar cell, a storage battery,
An illuminating device including a light emitting body and a circuit for controlling light emission and the like is incorporated in the inside of the steel pipe pole. The luminous body is made of electroluminescence, is arranged along the periphery of the pole, and is covered by a transparent cylinder made of acrylic resin or the like. The control circuit charges the storage battery with electric power generated by the solar cell in the daytime, and emits electroluminescence by the electric power from the storage battery at night to illuminate the pole.

[0004] In addition, the gaze guidance signpost disclosed in Japanese Patent Application Laid-Open No. Hei 7-331621 also has a pole made of a steel pipe or a hard synthetic resin .
In addition, a self-illuminating device including a solar cell, a storage battery, a luminous body, a control circuit, and the like is incorporated inside the pole. The luminous body is composed of a light emitting diode, and one end of the optical fiber is connected to the light emitting surface of the light emitting diode, and the other end is exposed to the pole peripheral surface. The control circuit charges the storage battery with electric power generated in the solar cell in the daytime, makes the light emitting diode emit light by the electricity from the storage battery at night, and illuminates characters, figures, symbols, etc. formed by the other end of the optical fiber. Like that.

[0005]

A gaze-guided road signpost having such a self-illuminating device has significantly improved visibility at night. However, in these gaze-guided road signposts, the illuminating device is built into the pole, and the pole is incapable of avoiding collision with the vehicle. Can not avoid. In particular, this type of line-of-sight road signpost is premised on being trampled by a car, even if it is installed once, when installed in a line-of-sight signpost equipped with a pole that has the flexibility to bend when a car crashes. Since the self-illuminating device is fatally injured, it cannot be installed in a place where the probability of stepping on is high.

[0006] It is an object of the present invention to provide a gaze-guided road signpost that has the flexibility to bend when a pole collides with a vehicle, but does not damage the self-illuminating device.

[0007]

To achieve the above object, according to the solution to ## visual guidance road sign post of the present invention and a port Lumpur and the base, the solar cell, a storage battery for storing electric power of the solar cell, storage battery A luminous body that emits light by the electric power stored in the
Illuminated apparatus including a control circuit for controlling the light emission like is incorporated, it has led to the circumferential surface of the pole by an optical fiber the light from the light emitting element, the solar cell, a storage battery, the light emitter and the control circuit is stepped to the automobile The light-receiving side end , which is built into the base that does not deform even if
And the light-receiving surface of the solar cell built in the base.
Connected via an optical fiber installed inside the
It is characterized by .

In the gaze-guided road signpost of the present invention, during the daytime, the solar cell is activated by sunlight taken in from one end of the optical fiber, and the storage battery stores the power generated by the solar cell. At night, the control circuit causes the luminous body to emit light by electric power from the storage battery.

Even if a vehicle such as an automobile collides with a pole,
Damaged solar cells, accumulators and control circuits are protected by the base, and the poles have only undamaged optical fibers, so that even if the poles deform, they do not lose their self-illuminating function. For this reason, the pole is made of a material having flexibility to bend when the vehicle collides with the vehicle, and even if the pole is installed in a place where there is a high probability of being stepped on by the vehicle, the self-illumination function can be reliably maintained.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the gaze-guided road signpost of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, the gaze-guided road signpost includes a pole 11 having flexibility to bend when a vehicle collides and a base 12 which does not deform when stepped on by the vehicle. The pole itself comprises a body 13 and a top 14. The pole body 13 is formed of a hollow pipe formed by molding a thermoplastic elastomer such as urethane resin and having both ends opened. Although not shown, a member having a screw is fitted to the lower end opening of the main body 13 by projecting a screw portion, and is fixed by resin. The top 14 is made of a synthetic resin molded material such as urethane resin having a flat plate-like top. The lower part is fitted to the upper end opening of the main body 13 and is joined to the main body 13. Three reflective marker strips 15 are provided on the peripheral surface of the pole body 13 along the longitudinal direction of the body 13 at intervals. The reflective marker band itself is formed by winding a retroreflective tape around the peripheral surface of the pole 11, or by applying a fluorescent paint or the like to the peripheral surface of the main body 13. The base 12 is made of a solid material formed by molding a hard urethane resin having a substantially disk shape. The base 12 is provided with a recess in which the lower end of the pole body 13 fits, and the pole body 1 is located in the center of the recess.
There is provided a hole through which the third screw member passes.

This gaze-guided road signpost further incorporates a self-illuminating device inside. The self-illuminating device itself includes a solar cell 21 and a storage battery 2 as well shown in FIG.
2, a light emitting diode 23, a control circuit 24, a light emitting optical fiber 25 and a light receiving optical fiber 26. Solar cell 21, storage battery 22, light emitting diode 2
The control circuit 3 and the control circuit 24 are incorporated in a substrate and sealed in a housing 27 made of silicon resin or the like. This unit avoids the aforementioned recesses and through holes in the base,
It is housed in a chamber formed inside the base 12. The light-emitting optical fiber 25 has one end connected to the light-emitting diode 23 facing the light-emitting surface of the light-emitting diode 23, and the other end passing through an opening in the base 12 and the portion of the pole body 13 in the base 12. Is disposed near the upper end of the main body 13 and connected to a lens 28 attached thereto. The light receiving optical fiber 26 has one end facing the light receiving surface of the solar cell 21 and connected thereto, and the other end connected to the base 12 and the pole body 1.
Through the opening in the portion fitted in the base 12 in the 3, through the interior space of the main body 13 is fitted to the top 14 of the pole, to expose the end face on the outer surface of the top 14 receiving
It is the light side end .

For installation on a road, a screw member provided in the pole body is passed through a hole in the base 12, and a lower end of the pole 11 is fitted into a recess of the base 12, and the base 12
Is screwed into a leg member buried in the road, and the pole 11 is erected on the road surface.

When installed on the road, the solar cells 2
1 is a light receiving side end of the top 14 and a light receiving optical fiber 2
6, the sunlight is received, the electricity is generated by the sunlight, the storage battery 22 stores the power from the solar battery 21, and the control circuit 24 prevents the storage battery 22 from being overcharged.
At night, the control circuit 24 stores the light emitting diode 23 in the storage battery 2.
2 to control the current flowing from the storage battery 22 to the light emitting diode 23, causing the light emitting diode 23 to blink and emit light,
The blinking light beam is emitted from the end of the light emitting optical fiber 25 located on the peripheral surface of the pole. At dawn, control circuit 2
4 interrupts the current flowing from the storage battery 22 to the light emitting diode 23, and the storage battery 22 is charged again by the solar cell 21.

This line of sight guide road sign is used together with other line of sight guide road signs of the same construction for the center line sign of the road, for the lane guide display, and for the traffic regulation guide display of the channelization. You. At this time, in the daytime, the light from the headlights of the automobile passing through the reflective sign strip 15 is retroreflected to make the driver confirm the presence of the gaze guidance sign pole. At night, reflective sign strip 15
Not only retroreflects the light from the headlights of the car passing through it, but also
The end located on the peripheral surface of the vehicle blinks, so that the driver can confirm the presence of the gaze guidance sign even if the light beam of the headlight of the vehicle is directed downward.

Even if the driver erroneously drives and collides with the line of sight guide sign and steps on the pole 11 with the wheels, the inside of the pole 11 is only the optical fibers 25 and 26 which are not damaged by the stepping on the pole 11 and may be damaged. A certain solar cell 21, storage battery 22, light emitting diode 23 and control circuit 24 are arranged inside the base 12,
Is always protected by the self-illumination function. In addition, even if the pole 11 and the base 12 are contaminated by wind and rain or dust, if the pole 11 and the base 12 are sprinkled with water containing detergent to remove the contaminants, or if they are subjected to water pressure from a water sprinkler or the like, the solar cell 21 and the storage battery 22 , Light emitting diode 2
3 and the control circuit 24 are not only sealed by the housing 27 and protected by the base 12 but also emit and receive light by optical fibers 25 and 26, and the solar cell 21, the storage battery 22, the light emitting diode 23 and the control circuit 24 does not cause a failure due to these, so that a long-term and stable self-illuminating function can be obtained.

In the embodiment described above, the light emitting optical fiber 25 has the light emitting side end connected to the lens 28.
It may be connected to another optical member such as a reflecting mirror incorporated in the pole body 13, and the light emitting side end may be connected to the pole body 1.
The light-emitting diode 23 may be illuminated by a light beam from the light-emitting diode 23 itself. The light receiving optical fiber 26 has a solar cell side end that is
Although it is directly connected to the light receiving surface of the solar cell 21, it may be connected to the light receiving surface of the solar cell 21 via a light diffusing member or the like. It may be attached to an optical lens or a mirror, or connected to the top 14 configured as a condenser lens.

[0018]

As described above, in the gaze-guided road signpost of the present invention, even if the vehicle collides with the pole, the base protects the solar cell, the storage battery, and the control circuit, and prevents these damages. At the same time, the light from the solar cell is received by an optical fiber, so that even if the pole is deformed, the self-illuminating function is not lost, so the pole is made of a material that has the flexibility to bend when a vehicle collides. Even if the vehicle is installed in a place where there is a high probability that the vehicle will be stepped on by the vehicle, the self-illuminating function can be reliably maintained.

[Brief description of the drawings]

FIG. 1 is a partially broken front view showing an embodiment of a gaze guidance signpost of the present invention.

FIG. 2 is a plan view.

FIG. 3 is an enlarged front view around a base.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Pole 12 ... Base 21 ... Solar cell 22 ... Storage battery 23 ... Light emitting diode 24 ... Control circuit 25, 26 ... Optical fiber

Claims (1)

(57) [Claims] 1. A solar cell comprising a pole and a base,
A self-illuminating device including a storage battery that stores the power of the solar cell, a luminous body that emits light by the electric power stored in the storage battery, and a control circuit that controls light emission and the like is incorporated, and the light from the luminous body is poled by an optical fiber. in the peripheral surface guided by and visual guidance road sign posts, the solar cell, a storage battery, the light emitter and the control circuit is incorporated in the base which is not deformed even if stepped on an automobile, and the light-receiving side formed in pole edge
And the light-receiving surface of the solar cell built in the base.
A gaze-guiding road signpost, which is connected via an optical fiber disposed inside the ruler .