JP2003232016A - Post cone for road marking - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an easily replaceable post cone for road marking, which exerts excellent durability against breaking when a strong impact is made on the post cone, for example, when a vehicle collides against the post cone. <P>SOLUTION: In this post cone for the road marking, a cap is provided at a tip; a resin pole is centrally provided; an anchor block is provided at a lower end; and the centrally located resin pole comprises a ring-shaped or spiral reinforcing body and a soft material part which is composed of a soft material. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a road surface display post cone, and more particularly to a road surface display post cone for improving the recognizability of branching of road lanes.

[0002]

2. Description of the Related Art Conventionally used post cones are
A cap is provided at the tip, a resin tube is provided at the center, and a fixing base is provided at the lower end, and a reflective tape is attached to the resin tube in a spiral shape to further improve the recognition. However, when the vehicle hits the post cone, which mainly consists of the resin tube, a bending stress is locally concentrated and crushed (kink), and as a result, “kinks” and “kinks” occur at the kink point over time. There was a problem called "cracking". For these problems,
A method has been proposed to repair the damaged resin tube by covering it with a sheath tube, but if the resin tube has a strong crease or the resin tube is cracked,
Even if the sheath tube is covered on the resin tube for repair, it is difficult to cover the sheath tube. Therefore, it is necessary to dig up the fixing table from the pavement surface and replace the whole.

[0003]

SUMMARY OF THE INVENTION According to the present invention, a road surface display post cone has a structure which exhibits excellent bending durability when subjected to a strong impact, for example, when a vehicle hits, and which can be easily replaced. The purpose of the present invention is to provide a post-cone.

[0004]

In the road surface display post cone having a cap at the tip, a resin pole at the center and a fixing base at the lower end, the resin pole located at the center is reinforced in a ring shape or a spiral shape. This is accomplished by providing a road marking post cone, which is composed of a body and a soft flesh made of a soft material.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is a post cone with a reinforcing body, which is an example of the present invention, in which a distal end cap 1 and a fixing base 2 are joined to a cylindrical resin pole 3 composed of a reinforcing body 4 and a soft meat portion 5, and a fixing bolt 6 is provided. 2 is a side view of a post cone with a reinforcing member, in which a reflective material such as the reflective tape 7 is attached in a headband shape, as seen from the outside.

The resin pole 3 with a reinforcing member has an inner diameter of 20 to 200 mm and a length of 50 to 50 in consideration of its uprightness and obstacles in the field of use for road marking, especially road branching.
It is preferably 3,000 mm, and more preferably, the inner diameter is 50 to 150 mm and the length is 500 to 20,000 mm. In addition, the resin pole is suitable by winding a tape-shaped material (soft meat portion) made of a soft material on the inner surface and / or the outer surface of the ring-shaped or spiral ring-shaped reinforcement body so that the ends slightly overlap each other. Can be obtained. The thickness of the tape-like material used is preferably 0.1 to 5 mm, more preferably 0.1 to 3 mm. The width of the tape-shaped material is preferably 5 to 50 mm, more preferably 10 to 40 mm. The resin pole composed of the reinforcing body and the soft-walled portion obtained in this way can withstand impacts from any angle and exhibits excellent durability against bending.

Although any resin material can be considered as the material of the reinforcing body 4, a hard material or a semi-hard material is preferable, especially considering the shape restoring property when being trampled and the tearing durability, and the JIS A hardness. A high hardness resin of about 75 to 99 degrees, especially a hardness urethane resin is most suitable.

As the material of the soft meat portion 5, any flexible resin material can be considered, but in view of flexibility and shape restoration property, tear durability and melt adhesion when coextruding with a hard portion, JIS A hardness 55. Low hardness resin of about 75 degrees,
Especially, low hardness urethane resin is most suitable.

As shown in FIG. 1, the reinforcing body may be provided in a spiral shape so as to be convex on the inner surface of the resin pole, and the tip cap and the fixing base can be easily joined by a screwing method. Therefore, it is a preferable mode, and by adopting such a mode, there is an advantage that the outer surface of the resin pole becomes smooth and the adhesion of dirt can be prevented. The cross-sectional shape of the reinforcing body is not particularly limited, but considering impact resistance, it is circular, semicircular, elliptical, polygonal (triangular,
Quadrilateral, and even more polygons),
It is preferable that the cross section has a semicircular shape as shown in Example 1 to be described later, and the ring-shaped or spiral-shaped reinforcing body has a semicircular inner surface and an smooth outer surface. In addition, the cross-sectional size (average diameter) and pitch of the ring-shaped or spiral-shaped reinforcement are 3
A range of -30 mm and a pitch of 6-60 mm is suitable,
More preferably, the average diameter is 8 to 16 mm and the pitch is 20 to 40.
The range is mm. The resin pole composed of the reinforcing body and the soft-walled portion may have a cylindrical shape, a polygonal cylindrical shape, or the like, but the cylindrical shape is preferable. Further, the resin pole may contain various reflective materials such as a fluorescent substance, metal powder and / or glass beads in order to impart visual recognition property and further decorative property.

The tip cap 1 and the fixed base 2 shown in FIG.
Is provided with concave grooves 8 and 9 which are fitted to a ring-shaped or spiral convex reinforcing body on the inner surface of the resin pole 3.
By these, the resin pole and the tip cap, and further the resin pole and the fixed base are joined. When the reinforcing body has a spiral shape, a screwing method is used, the joining becomes stronger, and the resin pole, the tip cap, and the fixing base are easily attached and detached.

The fixed base 2 shown in FIG. 1 includes a resin pole pressing portion 10 around the fixed base and a support portion 1 at the center of the fixed base.
1 and the insertion hole 12 of the resin pole. The support 11 is preferably cylindrical, and a concave groove 9 is provided on the cylindrical outer surface. Further, it is preferable to attach the fixing bolt 6 as a means for fixing the fixing base 2 to the ground surface. The fixing base is preferably of the structure shown in FIG. 1, but any structure can be used as long as it can firmly bond the resin poles. Further, in the structure of the tip cap 1 shown in FIG. 1, the lower end of the cap has a cylindrical shape, a concave groove 8 is provided on the outer surface thereof, and the tip has various shapes (circular, conical, Pyramids) are provided. The tip cap preferably has the structure shown in FIG. 1, but is not limited thereto.

The material of the tip cap may be any metal or resin that can be molded, but from the viewpoint of versatility and flexibility, polyurethane, low-density polyethylene, semi-rigid polyvinyl chloride, polyurethane, various types of heat can be used. Plastic elastomers and various rubbers are preferable, and low density polyethylene, particularly linear low density polyethylene, is most preferable. The material of the fixing base may be any metal or resin that can be molded, but due to its versatility and flexibility, polyurethane, low density polyethylene, semi-rigid polyvinyl chloride, polyurethane, various thermoplastic elastomers, Various rubbers are preferable, and low density polyethylene, especially linear low density polyethylene, is most suitable.

The reflective tape 7 having a fluorescent layer or the like on the surface shown in FIG. 2 is suitable as a means for enhancing the visual recognition property at night, and is provided on the whole or a part of the outer surface of the resin pole.

In the road surface indication post cone of the present invention, since the resin pole is composed of the combination of the ring-shaped or spiral-shaped reinforcing member and the soft meat portion, for example, the vehicle collides with a strong impact. The bending stress in the case of being able to be dispersed can be dispersed, and the bending durability becomes remarkably excellent. Furthermore, when the resin pole has a convex screw structure with a spiral reinforcement and a soft flesh, and a tip cap and a fixing base having a concave screw structure corresponding to this screw structure are used, replacement when broken is not possible. It's very easy. In the present invention, examples of the road surface display post cone include a display tower for increasing the visibility of branching of the road lane, a display tower indicating the boundary line between the roadway and the sidewalk, a display tower indicating that the roadway or the sidewalk is under construction, etc. However, among them, the post cone of the present invention is particularly useful as a display tower for improving the recognizability of branching of road lanes. Next, the present invention will be described more specifically by way of examples.

[0015]

Example 1 Hard urethane having a hardness of 95 degrees was extruded into a semicircular rod having a diameter of 8 mm, the smooth surface of the semicircular rod was set to the outer side, and the semicircular (convex) shape was set to the inner side, and the inner diameter was 75 mm at a pitch of 18 mm. It was spirally wound on a pipe making mandrel. A soft urethane tape with a thickness of 1 mm and a width of 20 mm, extruded with a hardness of 65 degrees, was placed on the mandrel on the mandrel with a hardness of 65 degrees and spirally wound around the upper part of the rod while a 2 mm overlap was provided and the pitch was adjusted to 18 mm. Adhesion and cooling were performed to obtain a resin pole with a reinforcing member of 75φ.

COMPARATIVE EXAMPLE 1 A soft urethane tape having a hardness of 75 degrees was formed with a thickness of 1 mm and a width of 20.
mm, a 2 mm overlap was melt-bonded and spirally wound at a pitch of 18 mm on a pipe-making mandrel for an inner diameter of 75 mm and cooled to obtain a 75φ resin tube.

In order to compare the bending durability of the 75φ resin pole with a reinforcing member of 80 cm obtained in Example 1 and the 75φ resin tube of 80 cm obtained in Comparative Example 1, in order to compare the bending durability, 90 ° in the center of the sample. Direction bending was performed at a frequency of 3 times / minute, and the occurrence of cracks in the resin portion and the number of times of bending at that time were confirmed. As a result, the resin pole with the reinforcing body of Example 1 was 53,000 times, the resin tube of Comparative Example 1 was cracked at 28,000 times, and Example 1 was compared with Comparative Example 1. Showed that it was excellent in breakage durability

The resin pole obtained in Example 1 is shown in FIG.
It was installed on the tip cap 1 and the fixed base 2 made of the linear low-density polyethylene shown in (3) to prepare a road surface display post cone. The resin pole and the tip cap, and the resin pole and the fixed base were joined firmly, and the attachment and detachment was extremely easy.

[0019]

In the road surface displaying post cone of the present invention, since the resin pole is composed of the combination of the ring-shaped or spiral reinforcing member and the soft meat portion, when the vehicle is subjected to a strong impact, for example, in a vehicle. It is possible to disperse the bending stress when the bumps collide with each other, resulting in remarkably excellent bending durability. Furthermore, if the resin pole has a convex screw structure with a spiral reinforcement and a soft flesh, and if you use a tip cap and a fixing base that have a concave screw structure corresponding to this screw structure, replace it when it is damaged. It's very easy.

[Brief description of drawings]

FIG. 1 is a sectional view showing an example of a road surface indication post cone of the present invention.

FIG. 2 is a side view showing an example of a road surface indication post cone of the present invention.

[Explanation of symbols] 1 Tip cap 2 fixed base 3 resin poles 4 Reinforcement 5 Soft meat part 6 fixing bolts 7 reflective tape 8 concave groove 9 concave groove 10 Resin pole retainer 11 Support 12 Resin pole insertion hole

Claims (5)

[Claims] 1. A road surface display post cone having a cap at the tip, a resin pole at the center, and a fixing base at the lower end,
The road surface display post cone, wherein the resin pole located in the center thereof is composed of a ring-shaped or spiral reinforcement and a soft meat portion made of a soft material. 2. The resin pole and the fixing base are joined by a ring-shaped or spiral convex reinforcing member on the outer surface or the inner surface of the resin pole and a concave groove formed in the fixing base.
Road marking post cone as described. 3. The road marking according to claim 1, wherein the resin pole and the cap are joined to each other by a ring-shaped or spiral convex reinforcement on the outer surface or the inner surface of the resin pole and a concave groove provided in the cap. Post corn. 4. The road surface display post cone according to claim 1, wherein at least one reflector is attached to the outer surface of the post cone. 5. The road marking post cone according to claim 1, wherein the resin pole is made of a resin containing a reflective material.