JPH0458841B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improved structure of a stud-type road signal device installed at the center of the ground surface of an intersection.

[Conventional technology] Equipped with a solar cell, a storage battery, and a light emitting diode, the electromotive force of the solar cell is charged to the storage battery when it is bright during the day, and when it is dark at night, the electromotive force of the solar cell decreases. A ground-mounted stud-type road signal device configured to detect when a vehicle has been parked and turn on a light emitting diode using electric power from a storage battery charged during the day by operating a switching circuit is already known, for example, from U.S. Pat. No. 4,050,834. There is.

In addition, the applicant covered the solar cells of this type of signal device with a light-transmitting member having a spherical light-receiving surface, thereby solving the problem of insufficient electromotive force of the solar cells of the signal device as seen in the above-mentioned publication, and by covering the solar cells of the signal device with a light-transmitting member having a spherical light-receiving surface. In the 1980s, he devised a signal device that solved the problem of dust accumulating on the light-receiving surface of solar cells and blocking sunlight when installed.
-An application has already been filed under No. 32678.

[Problems to be Solved by the Invention] These conventional devices have solar cells arranged integrally over the entire top surface, so if a large load is applied when a car runs over the solar cells, the solar cells may be crushed. Moreover, in that case, maintenance was not easy because the solar cell could not be repaired unless the entire solar cell was replaced. That is, in the conventional structure, one solar cell was used to cover the power consumption of the light emitting diodes on all four sides, so if that solar cell was destroyed, all four sides would disappear as soon as the storage battery ran out of power. Ta.

[Means for Solving the Problems] The present invention solves the above-mentioned problems by providing a spiral-shaped partition wall in the center of a truncated quadrangular pyramid-shaped stud main body to partition four equal accommodating parts. At the same time, window holes are formed on the four side walls of the stud main body to form pairs with the respective housing parts and communicate with each other, and on the other hand, a solar cell is provided on the horizontal surface, and a reflector with a built-in light emitting diode is integrally provided on the inclined surface. A signal unit body is formed, and the signal unit body is fitted onto the stud main body such that the solar cell is located in the housing portion and the reflector is located in the window hole.

[Function] By dividing the rivet main body with a mandibular partition wall provided in the center to form a housing section, the structure of the inner part in particular is strengthened, and damage can be reduced by withstanding loads. Even if the signal unit is damaged, the signal unit loaded in the storage section can only be damaged by being crushed directly.
Other signal units can continue to operate normally. Furthermore, the damaged signal unit can be efficiently repaired by replacing it.

[Example] In the figure, reference numeral 1 indicates an aluminum die-cast stud body formed in the shape of a short square truncated pyramid. Four housing parts 3a to 3d with equal
At the same time, horizontally elongated window holes 4a to 4d are formed on the four side walls to form pairs and communicate with each of the accommodating portions 3a to 3d, respectively. A through hole 5 is formed at the center of the partition wall 2, and through holes 6 are formed at each corner of the four side walls. A cylindrical portion 7 is formed to hang down from the lower surface of the rivet main body 1.

8a to 8d are signal units in which a solar cell 9 is provided on a horizontal surface and a reflector 10 is provided on an inclined surface.
1 and a resin lens 12 are built in. The light-receiving surface of the solar cell 9 is a translucent member 15 such as tempered glass.
It is inlaid and protected. A stepped hole 17 and semicircular stepped holes 18a and 18b are formed in the edge frame portion of this signal unit body.

The horizontal solar cells 9 of the signal unit bodies 8a to 8d are accommodated in the respective accommodating parts 3a to 3d, and the inclined reflector 10 is accommodated in the window holes 4a to 4d.
4d and fit into the rivet main body 1. 22 is a bolt having a square plate-shaped head 23;
The bolt is inserted into the through hole 5 so that the head 23 covers the corner of each signal unit body 8a to 8d, and a nut 24 is tightened to the downward protrusion of the bolt to fix it. .

Reference numeral 27 denotes a substantially cubic container with an open top, which is buried underground with its upper edge aligned with the ground surface. Reference numeral 19 is a printed circuit board constituting a light/dark sensitive switching circuit, and 20 is a sealed storage battery such as a small lead shielded battery, which are housed in this container 27. Further, the cylindrical portion 7 of the stud main body 1 is fitted into this container 27, and the bolts 28 inserted into each through hole 6 are screwed, and the mounting holes 17 and stepped holes 18a of each signal unit body 8a to 8d are screwed. , 18b is screwed into a screw hole 29 provided in the rivet main body 1 to fix it. An O-ring 30 is attached to the upper opening edge of the container 27, and the O-ring 30 is hermetically pressed to the lower surface of the stud body 1. This prevents rainwater from entering, and even when hydrogen gas is generated and the internal pressure increases when the storage battery 20 is overcharged, its airtightness prevents hydrogen gas from leaking.

In this way, the top surface of the stud body 1 has a swirl-shaped partition wall 2.
By fitting the signal unit bodies 8a to 8d into the four accommodating parts 3a to 3d divided into sections and the window holes 4a to 4d formed in the four side walls, respectively, the signal unit bodies 8a to 8d have high strength against pressing loads and are not easily damaged. Since each signal unit is independent, even if some of the signal units become damaged or fail, healthy signal units continue to operate. Therefore, only the failed signal unit body needs to be replaced, making maintenance easier.

Furthermore, in this way, the four signal unit bodies 8a
8d to the stud body 1, it is possible to freely combine and use signal unit bodies in which the colors of the reflector 10 and light emitting diode 11 are red, blue, or yellow, depending on the conditions of the installation site, for example. There is a convenience that can be done.

[Effect of light emitting light] As described above, in the ground-mounted stud-type road signal device of the present invention, the stud body is structurally robust and difficult to damage, and the signal unit body can be colored according to the conditions at the installation site. It has various advantages, such as being easy to change, and even if it breaks down, it can be repaired at low cost and maintenance is easy.

[Brief explanation of the drawing]

The drawings relate to an embodiment of the present invention, and FIG. 1 is an external perspective view, FIG. 2 is an exploded perspective view, and FIG. 3 is a sectional view. 1...Tack body, 2...Partition wall, 3a to 3d...
Receiving portion, 4a to 4d...window hole, 8a to 8d...signal unit body, 9...solar cell, 10...reflector, 11...light emitting diode.

Claims (1)

[Claims] 1. A spiral-shaped partition wall is provided in the center of the truncated square pyramid-shaped tack body to form four equal housing sections, and horizontally oblong window holes are formed on the four side walls of the tack body outside the partition wall. A signal unit body is formed by forming a solar cell on a horizontal surface and integrally providing a reflector with a built-in light emitting diode on an inclined surface, while communicating the window holes with each of the housing parts, A ground-mounted tack-type road signal device, characterized in that the signal unit body is fitted to the tack main body so that the signal unit body is located in the housing portion and the reflector is located in the window hole.