JPS5810734Y2 - Traffic safety sign device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a traffic safety sign that is installed on the road surface of an intersection, etc., and used to indicate the existence of an intersection to passersby such as vehicle drivers and pedestrians. .

In recent years, the occurrence of traffic accidents has become a major social problem due to the rapid increase in the number of cars.Especially during the morning and evening commuting hours, patrol cars often come and go even in the back streets of residential areas, which are considered normal living zones. This has spread and poses a serious danger to the elderly, young children, etc.

Therefore, as a traffic safety measure in residential areas, it would be extremely expensive to install traffic signals at all dangerous points, so it is recommended to install luminous road studs with internal light sources on the road surface. is being carried out.

However, since such luminous road studs require a power supply,
Installation requires work such as road surface roughing, cable burying, wiring, and road surface repair after these are completed. In particular, road surface roughing and repair must be carried out at night or during the day with traffic blocked off. However, the installation was subject to various restrictions and the required construction costs were large.

In view of the above points, the present invention was devised to solve such problems and eliminate such drawbacks.The purpose of this invention is to enable construction at any time without the need for road roughing, repair, etc. It is an object of the present invention to provide a traffic safety sign device that can reduce construction costs, and is easy to maintain and inspect.

In order to achieve such an objective, the present invention has a lens installed in front of a flat reflector that reflects the received beam light and projects it in the viewing direction of passersby, and a road stud installed on the road surface. It consists of a projector that is installed above the road stud and projects the beam of light onto the lens in a concentrated manner, and a controller that controls the lighting of the projector, and is capable of converting the reflected light from the lens into diverging light in the target direction. This is how it was done.

Hereinafter, the present invention will be explained in detail with reference to figures showing embodiments.

Figure 1 shows the structure of a road stud installed on the road surface, where A is a plan view and B is a Y-Y cross-sectional view at A, showing an inclined surface toward the upper surface of a base 1 made of concrete, plastic, etc. 2, a flat reflecting mirror 3 is fixed to the inclined surface 2, and these surfaces are covered with a cover 4 made of translucent glass or plastic to prevent damage.
Legs 6 are formed below the base 1 to facilitate embedding inside the road surface 5.

The cover 4 has a concave surface 7 formed on the surface facing the plane reflecting mirror 3, and has the function of a concave lens.

Note that when the road studs 8 are fixed to the road surface 5 with an adhesive or the like, the legs 6 are not necessary, and in this case, the lower part of the base 1 may be made flat.

Therefore, when the road studs 8 are installed in the road surface 5 by burying or gluing, and beams L1 to L3 such as visible light or invisible light are projected from above, these beams L1 to L3 are received by the reflecting mirror 3. Direction D1. D2 and direction D3.

In this case, since there is a cover 4 having the function of a concave lens in front of the plane reflector 3, as shown in FIG. The reflected light is reflected by the concave lens 9 and reflected at a wide angle θ, so that the reflected light can be seen from any location on the approach path.

Generally, a wide angle of about 12 degrees in the vertical direction and about 20 degrees in the horizontal direction is most effective, so the curvature of the concave surface 7 formed on the cover 4 is adjusted as described above. It is set to have a wide angle.

The top part 10 of the base 1 has a convex lens shape, and is also equipped with a reflector 11 of the same shape and similar to the plane reflector 3, and projects reflected light also in the close viewing direction D3, so that it can be seen just before an intersection. It is also visible from above a stopped vehicle.

Therefore, as long as the beams L1 to L3 are present, passersby can confirm the presence of the road stud 8 from a distance as well as from a nearby position, and passersby are alerted to traffic safety.

In addition, when invisible light is used as the beam lights L1 to L3, a fluorescent substance or the like is attached to the surface of the flat reflecting mirror 3.
It suffices to emit visible light with invisible light, and by selecting a fluorescent substance, or by coloring the flat reflecting mirror 3 or the cover 4, the light projected toward passersby can be made into any color tone, such as red or white. be able to.

In addition, since the plane reflecting mirror 3 is divided into segments of appropriate size and an optical system is configured for each segment,
Since the light source can be seen as a plurality of light intensity points, passersby are alerted to traffic safety.

In the embodiment of the road stud described above, the surface of the cover 4 facing the reflector is formed with four surfaces 7 to have the function of a concave lens, but as shown in FIG. 1
2 may be formed to have the function of a Fresnel lens,
Furthermore, as shown in FIG. 4, by using a convex mirror 13 as the reflecting mirror, the reflected light may be spread over a predetermined wide angle so that the reflected light can be seen from any location on the approach road. FIG. 5 shows a projector for projecting light beams L1 to L3 onto the road stud 8, where A is a partially cutaway side view and B is a bottom view. A projection 15 is formed, and a sealed beam lamp 1 is used as a light source.
6 is fitted, and the sealed beam lamp 16 is locked by a ring 18 that is fitted into the groove 17. Furthermore, a transparent cylinder 19 made of glass, plastic, etc. is placed around the projection opening for the beam lights L1 to L3. is fixed, and by coloring the cylinder 19 in red and orange, it also functions as a warning light.

In addition, a mounting part 20 is fixed to the top of the shade 14, and a mounting bracket 23 is locked from both sides by bolts 21 and nuts 22, and the mounting brackets are tightened together by a bolt 24 and a nut 25 at the other end of the mounting bracket 23. , the projector made up of these can be easily attached to a pipe or the like.

However, it is of course possible to select various light sources depending on the conditions, such as sealed beam lamps and xenon lamps, and it is also possible to use measures such as double filaments or incorporating dual light sources as a countermeasure against dimming at night. Optional.

FIG. 6 is a perspective view of a situation in which the road studs 8 described above are installed on the road surface of an intersection, and a floodlight 26 is installed obliquely above the stud 8, and the floodlight 26 is attached to a pole 27 on the side of the road
It projects a beam of light from diagonally above the road stud 8, and the road stud 8 directs this beam in the viewing direction D1□ for passersby on each road.
- It is reflected and projected to D14.

However, the installation position of the floodlight 26 is determined by each reflector 3 of the road stud 8.
, 11 as long as the position can project the heavy beam light, and in some cases, a plurality of them may be installed and used.

A controller 28 is attached to the base of the pole 27 to control the lighting of the floodlight 26, but in the case of the figure, an ultrasonic reflection detection type installed on the side of a road 29 where vehicles enter frequently is used. It is electrically connected to a vehicle detector 30 such as a vehicle by an overhead wire 31, and a vehicle 32 such as a car is connected to a vehicle detector 3.
0 is detected, the sensing output causes the floodlight 26 to be activated only for a predetermined period of time, such as the time until the vehicle 32 passes over the road stud 8.
is flashed to give special attention to the driver of the vehicle 32.

Furthermore, after lighting, the cylinder 19 of the projector 26 emits red or orange light, which is particularly effective.

In addition, various functions may be selected for the controller 28, and the flashing cycle of the floodlight 26 may be changed from a long cycle to a short cycle based on the sensing output of the vehicle sensor 30. A time switch is provided without using a time switch, and the floodlight 26 is turned on and off only at specific times such as morning and evening, or at night, the supply voltage to the floodlight 26 is switched, the light source inside the floodlight 26 is switched, etc. The beam light may be reduced.

Incidentally, the same effect can be achieved by providing a photoelectric switch 33 above the pole 27 and performing the dimming control based on the output of the photoelectric switch 33 instead of using a time switch for dimming the light at night.

Also, in particular, it does not automatically flash, that is, intermittent lighting,
Continuous lighting may be sufficient in some cases, and in this case, it is sufficient to simply provide a manual open/close switch in the controller 28, and it is also possible to switch to blinking control later due to budget constraints.

Note that the controller 28 can be easily configured using a relay circuit, a semiconductor logic circuit, etc., and a detailed explanation thereof will be omitted.

As is clear from the above explanation, according to the present invention, construction can be carried out at any time without the need for road surface excavation, repair, etc., reducing construction costs. Since only the floodlights and controllers need to be targeted, maintenance and inspection are easy.In addition, they are much cheaper than traffic signals, and can be installed in large numbers in residential areas without requiring huge costs. , has a great effect on maintaining traffic safety on branch roads and private roads.

It goes without saying that the shapes and structures of road studs and floodlights can be modified or selected in various ways.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Figure 1A is a plan view of a road stud, Figure B is a YTY sectional view in Figure A, Figure 2 is a diagram showing the optical system of the road stud, and Figure 3 4 are sectional views showing other embodiments of the optical system, FIG. 5A is a partially cutaway side view of the projector, FIG. 5B is a bottom view of FIG.
The figure is an inkstone drawing showing the installation status of road studs and floodlights. 1...Base, 3.11...Reflector, 5
... Road surface, 8 ... Road studs, 26 ...
...Floodlight, 27...Pole, 28...
...Controller, 30...Vehicle sensor, 33...
...Photoelectric switch, L, L. ~L3...Beam light, D1~D3. D1□～D
14...Visual direction.

Claims (1)

[Scope of utility model registration request] A lens is disposed in front of a plane reflecting mirror that reflects the received beam light and projects it in the viewing direction of passersby, and a road stud is installed on the road surface, and the beam is directed to the lens provided above the road stud. A traffic safety sign device comprising a projector that projects light in a concentrated manner and a controller that controls lighting of the projector, and is configured to convert light reflected from the lens into diverging light in a target direction. .