JP3968202B2 - Road sign pillar - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a road sign pillar that is erected on a road surface for separation of pedestrian roads or prevention of crossing of pedestrians.
[0002]
[Prior art]
As shown in FIG. 11, a steel fence b is installed in the central separation zone a of the road to prevent crossing. In this case, a vehicle or the like collides with the steel fence. In such a case, there are problems such as damage to vehicles and steel fences leading to secondary accidents. In FIG. 11, c is a roadway.
[0003]
In order to improve the problem when a vehicle or the like collides with the steel fence, a road sign pillar made of a hollow image body made of an elastic body (polyurethane) represented by Patent No. 1451316 is placed on the road surface at a predetermined interval. The required number of lines are arranged in the line to restrict crossing or to separate pedestrians.
When as described above, since the road sign posts made of hollow figurine body is an elastic body, such as is to be the elastically deformable collision preventing damage, such as road signs pillar or vehicle vehicles, large secondary even damaged The risk of accidents can be reduced.
[0004]
[Problems to be solved by the invention]
However, the restriction on the road sign pillar made of the hollow image object has a gap between the adjacent road sign pillars, so that a person can pass freely. For example, FIG. As shown in Fig. 3, if there is a pedestrian crossing e at a position away from the station d, even if the required number of road sign pillars f are arranged in order to regulate the crossing from the vicinity of the station, There is a problem of crossing through.
[0005]
The present invention provides a road sign pillar that can improve the above-described problems and can reliably regulate the crossing of pedestrians, even though it is a road sign pillar made of a hollow imager that is safe for people and vehicles. It is something to be done.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the road sign pillar according to the invention of claim 1 is a road sign pillar in which a main body made of a hollow imager is erected on a road surface, and a beam insertion hole is provided near the top of the main body. A hollow beam made of the same material as the main body is inserted into the hole, and the head of the road sign post is molded by a urethane foam casting method with the hollow beam inserted. The body, the beam, and the head are combined together .
[0007]
In the road sign pillar according to the invention of claim 2, in addition to the constituent elements of the invention of claim 1, the beam has an elliptical or flat cross-sectional shape, and the major axis thereof is oriented in the vertical direction of the ground. It is characterized by.
[0008]
The beam is preferably constituted by a hollow elastic body similar to the main body. Further, a connecting portion such as a hole is provided at the tip of the beam so that the beams of adjacent road sign pillars can be connected to each other through a string or the like.
[0009]
As described above, the road sign pillar of the present invention has a beam projecting outward from one side or both sides of the main body, so that it can pass between the arranged road sign pillar main bodies, but visually passes. The effect of preventing crossing can be surely exhibited and it is possible to reduce the possibility of damage when a vehicle or the like collides and the risk of a secondary accident. In addition, the main body of the road sign pillar, the beam, and the head are integrally coupled.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
Fig.1 (a) is the front view which made the cross section the half part of the main body which shows one Embodiment of this invention, FIG.1 (b) is the side view. In this figure, reference numeral 1 denotes a road sign main body. In this embodiment, polyurethane is used to form a hollow tubular body. The physical properties of the polyurethane used are as follows.
[0011]
Tensile strength: 14.7 MPa
Elongation: 300%
Tearing strength: 49 kN / m
A beam mounting hole 1-1 is provided near the top of the main body 1, and a hollow beam 2 made of the same material as that of the main body is inserted into the hole 1-1. In this state, a cast molding method of urethane foam is performed. By forming the head 3, the main body 1, the beam 2, and the head 3 are combined together.
Various physical properties of the urethane foam used for the head 3 are as follows.
Tensile strength: 2.6 MPa
Elongation: 400%
Hardness: JIS C45
Reference numeral 4 denotes a connecting hole formed in the vicinity of the end of the beam 2, and as shown in FIG. 10, adjacent beams can be connected by a connecting member 8 such as a string. Reference numeral 5 denotes a binding band, which has a structure that closes the beam end. 6 shows a reinforcing member inserted inside the main body. In this embodiment, a long reinforcing member reaching from the lower part of the head 3 to the lower end of the main body 1 and a short reinforcing member extending from the middle to the lower end of the main body 1 are made of urethane scrap. Constructed using materials. Reference numeral 7 denotes a reflecting material such as a retroreflective sheet attached to the main body 1 and the beam 2 at required positions. In this embodiment, as shown in FIG. 1 (b), the cross-sectional shape of the beam 2 and oval-shaped, its diameter is an example in which as has had toward the ground vertically, the beam 2 The cross-sectional shape is not limited to such an embodiment, and may be configured in a circle or a substantially square shape. Moreover, in the said Example, although the main body 1 and the beam 2 were comprised with polyethylene, a material is not limited to the above, Elastic bodies, such as ethylene vinyl acetate copolymer (EVA) and low density polyethylene (LDPE) Alternatively, a resin close to an elastic body can be used.
An example in which the road sign pillar configured as described above is installed on the road surface is shown in FIG. That is, in the example shown in FIG. 2, a hole 9 a approximately equal to the outer diameter of the main body 1 is formed in the base 9, the lower end of the main body 1 is inserted into the hole, and a hole 10 a larger in diameter than the main body 1 is formed in the road surface 10. The adhesive 11 is poured into the hole 10a and the main body 1 and the base 9 are bonded and fixed.
[0013]
FIG. 3 shows an installation example different from the above. That is, FIG. 2 shows an example in which the main body 1 is inserted into the base 9 and fixed with the adhesive 11 under the road surface. However, in the embodiment shown in FIG. An example is shown in which the adhesive 11 is applied to the bottom surface of the base 9 and bonded and fixed to the road surface 10. In addition, the material used for the base of this installation example is polyurethane, The physical property is as follows.
[0014]
Tensile strength: 17.6 MPa
Elongation: 300%
Hardness: JIS A90
FIG. 4 shows a third installation example in which the embodiment shown in FIG. 3 is detachable from the road surface. That is, in this embodiment, the base 9 is formed integrally with the main body 1, while the anchor 12 is embedded in the road surface 10 with the adhesive 11, and the base 9 is attached to and detached from the anchor 12 via the bolt 13. It is a free conclusion. In the above description, it has been described that the base 9 is detachably fastened to the anchor 12 via the bolt 13. However, the anchor 12 is attached to the lower surface of the base 9 via the bolt 13 during the initial installation. The anchor 12 is inserted into the adhesive 11 filled in the hole formed in the road surface and installed.
[0015]
3 and 4 show an example in which the main body and the base are integrally coupled, but the embodiment shown in FIG. 5 is an example in which the main body and the base can be freely attached and detached. is there. That is, in this embodiment, the base is divided into a flat base lower part 9-1 and a molded base upper part 9-2, and the base upper part 9-2 is further divided into left and right members 9-2L. 9-2R, and further, a flange 1-2 is formed at the lower end of the main body 1, and the lower part of the main body 1 is held by the left and right members 9-2L and 9-2R of the upper part of the base. The flange 1-2 of the main body 1 is sandwiched between the base lower part 9-1 and the base upper part 9-2 from above and below, and the base upper part 9-2 and the lower base 9-1 are anchored by bolts 13 in this state. 12 is removably screwed to the body. FIG. 6 is an explanatory view showing a state in which the base of the embodiment shown in FIG. 5 is disassembled.
[0016]
The base material used in the examples shown in FIGS. 5 and 6 is polypropylene (PP), and the physical properties are as follows.
[0017]
Tensile strength: 20 MPa
Elongation: 200%
Hardness: Rockwell hardness 60
In the above embodiment, PP is used as the base material, but high-density polyethylene (HDPE) or polyurethane can be used in addition to PP.
[0018]
In the embodiment shown in FIG. 1, the beam is inserted into the beam insertion hole of the main body, and the main body and the beam are integrally coupled by the head member of the main body, but the present invention is such an embodiment. It is not limited to.
FIG. 7 shows a modification of the present invention .
[0019]
In FIG. 7, reference numeral 1 denotes a main body, and high density polyethylene (HDPE) is used in this modification . The physical properties of the HDPE used are as follows.
[0020]
Tensile strength: 31.3 MPa
Elongation: 720%
Durometer hardness: 57
Reference numeral 3 denotes a head formed integrally with the main body 1. A male screw member 1-3 for beam attachment projects from both sides of the head, and a female screw 2-1 is provided at one end of the beam 2. And the beam 2 is attached to the main body 1 by screwing them together. In this case, of course, the head 3 side may be a female screw and the beam 2 side may be a male screw.
[0021]
The material of the beam 2 used in this modification is HDPE similar to that of the main body, and the physical properties thereof are the same as those of the main body. Further, the base of this embodiment is configured such that the base upper portion 9-2 is detachable from the base lower portion 9-1 in the same manner as the embodiment shown in FIG. 5 and FIG. This is the same as the embodiment.
[0022]
In the modification shown in FIG. 7, a head having a beam mounting screw is formed integrally with the main body 1. However, as a modification different from the above, as shown in FIG. 1 can be configured separately, and a screw 3-1 projecting from the lower end of the head 3 and a screw 1-4 formed on the main body 1 can be detachably coupled.
[0023]
Modification shown in FIG. 7 and 8, because it makes use of a screw as detaching mechanism of the body 1 and the beam 2, but using a relatively hard resin such as HDPE, modified 9 in place of the screw Example As described above, the main body 1 and the beam 2 can be connected by a member such as the rivet 14. In this way, the main body 1 and the beam 2 can be made of a relatively soft resin such as polyurethane.
[0024]
【The invention's effect】
As described above, since the road sign pillar of the present invention projects the beam outward from one side or both sides of the main body, it is possible to pass between the arranged road sign pillar main bodies. It is considered that the vehicle cannot pass through the vehicle, so that the effect of crossing prevention can be demonstrated with certainty, and even if the vehicle collides, it is difficult to break, and even if it is broken, there are few cases that lead to a secondary accident. can do.
In addition, it is advantageous because the body of the road sign post, the beam and the head are joined together.
[0025]
Further, when connecting the beams cross protruding from the body, since the cross's hardly further cross, it is possible to further increase the safety regulations effect, the further, detachably attached to the body and the base, the base and the road surface, etc. By doing so, even if the road sign pillar is damaged, it is only necessary to replace the minimum necessary parts, so that the maintenance cost can be reduced.
[Brief description of the drawings]
FIG. 1 (a) is a front view with a cross section of a half of a main body showing an embodiment of the present invention, and FIG. 1 (b) is a side view thereof.
FIG. 2 is a partial cross-sectional view showing an installation example of the embodiment shown in FIG.
FIG. 3 is a partial cross-sectional view showing a second installation example of the embodiment shown in FIG. 1;
FIG. 4 is a partial cross-sectional view showing a third installation example of the embodiment shown in FIG. 1;
FIG. 5 is a partial sectional view showing a fourth installation example of the embodiment shown in FIG. 1;
6 is an exploded view showing details of the installation structure of FIG. 5. FIG.
FIG. 7 is an explanatory view showing a modification of the present invention .
FIG. 8 is an explanatory view showing a modified example different from the above .
FIG. 9 is an explanatory view showing a modified example different from the above .
10 is an explanatory view showing a state where the embodiment shown in FIG. 3 is connected. FIG.
FIG. 11 is an explanatory view showing a conventional example in which a steel fence is installed in the central separation zone.
FIG. 12 is an explanatory diagram showing a defect of a conventional example.

Claims (2)

In a road sign pillar that stands upright on the road surface with a main body made of a hollow imager , a beam insertion hole is formed near the top of the main body ,
A hollow beam made of the same material as the main body is inserted into the insertion hole, and with the hollow beam inserted, the head of the road sign pillar is molded by a urethane foam casting method, A road sign post in which a main body, a beam, and a head are joined together. In road sign post of claim 1, an elastic body which beam has an elliptical or flattened cross-sectional shape, road sign posts that major axis is equal to or in the ground vertically oriented Iteiru.

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