JPH10183537A - Imitative tree for central separation zone of road - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the construction cost and maintenance cost of a central separation zone by forming an imitative tree with a flat glare-proof plate having a main vein rib and lateral vein ribs derived from the main vein rib to the right and left and stretched with a mesh plate in the space surrounded by the main vein rib, lateral vein ribs, and an outer peripheral edge and a support bored with a slit insertable with the lower section of the glare-proof plate at the upper end. SOLUTION: A glare-proof plate 1 is provided with three pairs of lateral vein ribs 4 derived from a main vein rib 3 symmetrically to the right and left, a mesh plate 6 is integrally connected and stretched to the main vein rib 3, lateral vein ribs 4, and an outer peripheral rib 5 surrounding them, and the whole is formed into a flat semi-elliptical shape. Shock ribs are provided between the periphery of the main vein rib 3 and lateral vein ribs 4 and the mesh plate 6. A slit 10 is bored from the upper end of a support 2 so that the fitting section 8 of the glare-proof plate 1 is freely inserted, bolt holes are bored at the portion of the slit 10, and the fitting section 8 is fixed with bolts 12 and nuts 13. The unit cost of the glare-proof plate is lower than that of a natural tree, and its maintenance cost can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a false tree installed on a median strip or the like of a road.

[0002]

2. Description of the Related Art At present, a guard rail is installed in a median strip of a road to secure safety, and trees are planted side by side. The purpose of planting trees on the median strip is not only to obtain the appearance of the strip and to show the beauty of the road, but also to obtain anti-glare action for oncoming vehicles. Is well known to play an important role of this anti-glare effect.

[0003]

When a median strip is provided over a very long distance, such as a road, especially an expressway, the cost of trees to be planted there is high and the planting is expensive. It takes a lot of manpower, time and money to care for trees,
Also, cleaning of fallen leaves is expensive. Furthermore, the environment on the highway is severe due to various factors, and it cannot be said that the trees are suitable for growing trees. In fact, a limited number of trees are selected and used. In this way, planting and building trees as a marking device for the median strip is inevitable because it requires a lot of work and cost from selection of trees to maintenance and management of breeding.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object to reduce the construction cost and maintenance of the median strip as a marking device for the median strip. The purpose of the present invention is to provide an artificial tree for a median strip that replaces the trees of the above.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, a false tree for a median strip of a road according to the present invention has a main rib and a plurality of pairs of side ribs derived right and left from the main rib. An antiglare plate formed by flattening a mesh plate in an airspace surrounded by the main ribs, the side vein ribs, and the outer peripheral ribs, and a slit formed at an upper end to allow a lower portion of the antiglare plate to be freely inserted. The anti-glare plate comprises a buffer rib, which is thinner than the main rib and the side rib, and thicker than the mesh plate, between the periphery of the main rib and the lateral rib and the mesh plate. It is connected by intervening.

The anti-glare plate is formed of a synthetic resin such as new polyethylene or recycled polyethylene, and has outer peripheral ribs formed in a semi-elliptical shape in the longitudinal direction, and the buffer ribs are extended below the main ribs in a strip shape. It is preferable that the mounting portion to be formed is provided in a plane surrounded by the outer peripheral edge rib.

It is preferable that the mesh plate is formed in a lattice shape such that the mesh is 10 to 50 mm square and the corners of the mesh are slightly obliquely positioned vertically and horizontally.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing an antiglare plate of a false wood according to the present invention, FIG. 2 is a side view of its support, and FIG. FIG. 4 is a side elevational view showing the anti-glare plate assembled to the support, and FIG. 4 is a side view of the anti-glare plate. And three pairs of side vein ribs 4 are integrally provided at predetermined intervals so as to be symmetrically derived from the left and right sides. A mesh plate 6 is integrally formed with the main vein rib 3 and the outer peripheral edge rib 5 surrounding the side vein ribs 4. Connected to the main rib 3
And, it is stretched so as to fill the air space between the lateral vein rib 4 and the outer peripheral edge rib 5, and the entire outer shape is formed in a semi-elliptical shape in the major axis direction and flat.

A buffer rib 7 which is thinner than the main ribs 3 and the side ribs 4 and thicker than the mesh plate 6 is provided between the periphery of the main ribs 3 and the side ribs 4 and the mesh plate 6. Below the main vein rib 3, a mounting portion 8 for extending the buffer rib 7 in a strip shape is provided in a plane surrounded by the outer peripheral edge rib 5. A plurality of bolt holes 9 are drilled through the mounting portion 8.

The support column 2 is provided with a slit 10 having a predetermined depth from the upper end so that the mounting portion 8 of the anti-glare plate 1 can be freely inserted. Also, a plurality of bolt holes 11 corresponding to the bolt holes of the mounting portion 8 of the anti-glare plate 1 are formed in the slit 10 through the holes, and the bolts 12 and the nuts 13 are used for bolting and fixing to form a detachably fixed mounting. Is done.

As shown in FIGS. 3 and 4, an anchor bolt 15 is provided in the buried portion 14 of the support column 2, and the buried portion 14 is placed on a foundation 16 on which a split stone is laid.
The anchor 2 is fixed, and the support column 2 is prevented from being pulled out and rotated by the anchor bolt 15 and is installed upright.

As shown in FIG. 5, the mesh plate 6 is formed in a lattice shape having a thickness d of 10 mm and a mesh s of 30 mm square. It is generally and preferably formed to be located in the left-right direction.
However, the thickness d, mesh s and mesh s of the mesh plate 6
Is not limited as described above, and depending on the installation conditions of the road such as an anti-glare effect on the light of an oncoming vehicle and wind pressure, for example, a mesh having a large mesh s can be used in a place where a strong wind is generated. Then, in order to surely obtain the anti-glare effect at the curved portion of the road, the mesh s is formed so as to be adapted to the condition of the installation place such as making the mesh s small. Experimentally, a mesh s in the range of 10 mm to 50 mm square can be used.

The artificial wood A is manufactured by placing a new polyethylene or a recycled polyethylene in an extruder mold (not shown) composed of an upper mold and a lower mold whose front and back surfaces respectively face the antiglare plate 1. The molten material is injected from the mounting portion 8 at the base of the main rib 3, and the main rib 3 and the side rib 4 are used as injection gates and formed through the buffer ribs 7 and the mesh plate 6 and the peripheral rib 5 in the flow direction. I do.

[0014]

Since the pseudo tree of the present invention has the above-described structure, the following effects can be obtained. The mesh plate occupying most of the anti-glare plate is reinforced with the main ribs, the side ribs, and the peripheral ribs, so that it has sufficient strength even in a strong wind.
In particular, the anti-glare plate is provided with seed vein ribs and side vein ribs, and these ribs are further provided with a gate when molded by an extruder.
As a result, the resin of the constituent material flows uniformly in each part, and a uniform resin amount and pressure are obtained in the stitched plate and the peripheral ribs, so that the entire anti-glare plate has uniform strength. In addition, the connection portion between each of the main ribs and the side vein ribs and the mesh plate is provided with a buffer rib without changing the thickness extremely, and the thickness is changed obliquely through the buffer rib, The most heavily loaded connections also have sufficient strength.

Since the anti-glare plate and the column are detachable, if the durability of the anti-glare plate is limited, it can be easily replaced with a new anti-glare plate. In addition, the unit price is lower than that of natural trees, and maintenance and management costs are extremely reduced. In other words, trees are strong against direct sunlight coming from above, but if the reflection from the road hits the backside of the leaves, they will extremely lose their viability. Can also contribute significantly to road maintenance costs.

[Brief description of the drawings]

FIG. 1 is a front view of an antiglare plate of artificial wood according to the present invention.

FIG. 2 is a side view of the support of the artificial tree of the present invention.

FIG. 3 is a front view showing a state in which an anti-glare plate is assembled on the support of the artificial wood according to the present invention, and is installed upright.

FIG. 4 is a side view showing a state in which an anti-glare plate is assembled on the support of the artificial wood according to the present invention, and is installed upright.

FIG. 5 is an enlarged view of a main part showing a mesh structure of the antiglare plate of the artificial wood according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS A Simulated tree 1 Anti-glare board 2 Prop 3 Main vein rib 4 Side vein rib 5 Peripheral edge rib 6 Mesh plate 7 Buffer rib 8 Attachment part 9 Bolt hole 10 Slit 11 Bolt hole 12 Bolt 13 Nut

Claims (2)

[Claims] 1. A flat plate having a main rib and a plurality of pairs of side ribs derived from the main rib on the left and right sides, wherein a mesh plate is stretched in an air space surrounded by the main rib, the side rib, and an outer peripheral rib. A pseudo-wood for a median strip of a road, comprising: an anti-glare plate formed at a lower end; 2. The anti-glare plate according to claim 1, further comprising a cushioning rib, which is thinner than the main ribs and the side vein ribs and thicker than the mesh ribs, between the periphery of the main ribs and the side ribs and the mesh plate. A pseudo tree for a median strip of a road, which is connected and interposed.