JP3958505B2 - Road marking object - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a road marking body used in a state of being fixed and arranged on a paved road surface for the purpose of lane centerline marking, lane guidance marking, traffic regulation guidance marking, or the like.
[0002]
[Prior art]
A conventional road marking body installed on a center line or the like is required to be able to withstand and be restored by being stepped on at a considerable speed by a vehicle or the like and to be able to withstand such a situation for a considerable number of times. Therefore, the base material itself is flexible, and when it is stepped on, stress tends to concentrate, and there is a tendency not to make a joint portion that causes separation as much as possible. Therefore, usually, a method of integrally forming the pole portion including the cap portion and the base portion by injection molding or the like is often used.
[0003]
However, the method as described above requires each injection mold to meet various specifications, especially to meet many different height requirements, and has a reasonable number of many types to stock. A large amount of space is required due to the need for inventory and inventory in a space inefficient shape, which is extremely inefficient. In order to avoid such a situation, since the production is carried out after receiving the order, the delivery time becomes long, and the prompt response to the customer's request cannot be made.
[0004]
Therefore, in recent years, road marking bodies are divided into cap parts, pole parts, and base parts and stocked in the state of parts, and various shapes and heights can be obtained by fastening and assembling each member with bolts, rivets, etc. as necessary. A method for making it possible to cope with the above has been proposed.
[0005]
[Problems to be solved by the invention]
However, fastening with bolts, rivets, etc. increases the number of parts, making the process management complicated and at the same time increasing the cost. In order to secure the strength, it is necessary to fasten several parts each, and the number of man-hours for fastening Not a few. Also, bolts, rivets, etc. are exposed and unsightly in appearance, and there is a risk of rusting on the exposed parts. Furthermore, the fastening means such as screws and rivets are usually harder than the resin member constituting the road marking body, and there is a possibility that problems such as tearing from the vicinity of the hole of the fastening portion and cracks may occur when stepped on by a vehicle or the like. .
[0006]
Therefore, the present invention provides a road marking body that can be easily adapted to various heights and that each member is firmly joined without using fastening means such as screws and rivets.
[0007]
[Means for Solving the Problems]
The present invention is a cap having a pole portion formed of a cylindrical hollow columnar body having upper and lower ends opened and having the same inner diameter along the length direction, and an insertion portion having an outer diameter substantially the same as the inner diameter of the pole portion. And an insertion part of the cap part at the upper end of the pole part, and an insertion part of the base part at the lower end of the pole part. The cap part has an exposed part having the same outer diameter as the pole part. and, and pole portions are fused and the outer surface of the insertion portion of the inner surface and the cap portion of the upper end Rutotomoni, the outer peripheral surface of the upper end of the pole portion is reflective sheet having a retroreflective been deposited It is characterized by this.
[0008]
The road marking body is separated into a pole part, a cap part, and a base part. The pole part is a simple hollow columnar body, and the cap part and base part are common members. It is possible to form road marking bodies having various heights only by the above. Also, by fusing each member, the joining portion is hardly noticeable in appearance and a strong joining force can be obtained.
[0009]
Although there are a plurality of types of pole portions, the inner diameters are the same along the length direction, and the insertion portions of the cap portion and the base portion must be formed in accordance with the inner diameters of the pole portions. The cylindrical hollow columnar body that forms the pole part is stocked to a certain length, and is cut to an arbitrary length as necessary to form the pole part. The stocked cap part and base part Can be quickly responded to orders. The pole portion is simply a cylindrical hollow columnar body, and the cap portion and the base portion are also limited in shape, so that it is possible to stock in consideration of space efficiency and to save space of the stock.
[0010]
Further, the insertion portion of the cap portion to be fused with the inner surface of the upper end of the pole portion is characterized in that a plurality of protrusions are provided on the outer surface at intervals in the vertical direction. It is.
[0011]
The fusion according to the present invention may be ultrasonic fusion or high-frequency fusion. However, considering that the fusion members are cylindrical, it is easy to obtain a substantially constant fusion strength throughout the fusion part. It is more preferable to perform the rotational fusion which is. Insert the insertion part of the cap part or base part into the pole part, contact with the member by rotating one with the pressure applied from the outside of the pole part and pressing the members together, or rotating both in the opposite direction Frictional heat is generated on the surface, and the heat melts the resin on the contact surface portion, and after cooling, it is integrated and firmly joined. The fused part is the inner surface of the pole part, and the joined part hardly stands out in appearance.
[0012]
For the base part to be fused, an outer peripheral wall is provided around the outside of the fused part between the insertion part of the base part and the pole part to conceal the molten resin leakage from the fused part and to improve the appearance. At the same time, it is preferable to have a structure that prevents a decrease in strength of the fused portion. The outer peripheral wall may be provided on the outside of the insertion part by forming a groove in which the tip of the pole part is fitted on the outside of the insertion part, after the insertion part of the base part and the pole part are fused. In addition, a separate cylindrical member may be joined to the outside of the fusion part by fusion or the like, and a cylindrical member having a bottom part may be fitted to the fusion part of the base part and the pole part to fix the anchor. When the bolt is screwed and fixed to the base anchor, the bottom portion of the cylindrical member may be sandwiched and fixed between the base portion and the road surface.
[0013]
The method of forming the pole portion according to the present invention is not particularly limited as long as a cylindrical hollow columnar body can be formed, and may be by injection molding. However, a hollow extrusion that can obtain a hollow columnar body having the same inner diameter continuously. A method by molding or spiral molding is preferred. When molding a hollow columnar body as described above, extrusion molding has higher productivity and efficiency than injection molding, and since a continuous hollow columnar body can be obtained, a hollow columnar body of any length can be molded, It can be stocked as a hollow columnar body having a length corresponding to the length of the pole portion.
[0014]
As a method of fixing the road marking body to the paved road surface, etc., there is also a method of adhering to the road surface with an adhesive or the like, but there is a risk of peeling by frequent stepping by the vehicle, etc. The base anchor is embedded in the road surface and anchored It is preferable to use a method of fixing with bolts. In the present invention, since the cap portion is integrated with the pole portion, it is difficult to screw from above the pole portion at the construction site, and anchor bolts are implanted in the base portion in advance when forming the base portion. A method of rotating, screwing, and fixing the main body to the road surface is simple, reliable and preferable.
[0015]
For the purpose of reducing the bending of the base portion when the pole portion is bent, it is preferable to provide a reinforcing material having an outer diameter slightly smaller than the inner diameter of the pole portion inside the pole portion. The reinforcing material may be molded integrally with the base portion, or may be joined to the base portion by fusion or adhesion before joining the pole portion.
[0016]
The material of each member is not particularly limited as long as it can be molded and fused. However, considering the ease of molding and the resilience and durability against treading of vehicles, etc., thermoplastic polyurethane, soft polyolefin, elastomer, etc. Is preferred. From the viewpoint of recycling, it is preferable that the material of each member is the same. However, even if different materials are used in consideration of strength, etc., the area of the joint portion is not so large. The mixing amount of is small and can be easily recycled.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to the drawings.
[0018]
FIG. 1 shows the entire road marking body. The cap part 2 is integrated with the upper end part of the pole part 1 which is a cylindrical hollow columnar body, and the base part 3 is integrated with the lower end part by rotational fusion. An anchor bolt 31 projects from the lower end of the base portion 3. Further, a reflection sheet 4 having retroreflectivity is attached to the outer surface of the upper portion of the pole portion.
[0019]
FIG. 2 shows a pole portion constituting the road marking body. The pole portion 1 is formed by hollow extrusion molding using thermoplastic polyurethane, and has the same inner diameter and thickness along the length direction.
[0020]
FIG. 3 shows a cap portion constituting the road marking body. The cap portion 2 is formed by injection molding using thermoplastic polyurethane, and an exposed portion 21 whose most outside diameter is the same as the outside diameter of the pole portion, and an insertion portion whose outside diameter is almost the same as the inside diameter of the pole portion. 22.
[0021]
FIG. 4 shows a cross section around the base portion in one embodiment of the present invention. Anchor bolts 31 are implanted at the same time when the base portion 3 is molded, and the inner side surface of the pole portion 1 is rotationally fused with the outer side surface of the insertion portion 34 of the base portion 3. A reinforcing member 32 having an outer diameter slightly smaller than the inner diameter of the pole 1 is formed integrally with the base portion on the inside of the pole portion 1 to reinforce the strength of the root portion where stress is concentrated to reduce bending. An outer peripheral wall 33 formed integrally with the base portion 3 is provided outside the fused portion, so that the fused portion is concealed to improve the appearance and prevent the bonding strength of the fused portion from being lowered. ing.
[0022]
FIG. 5 shows a cross section around the base portion in one embodiment of the present invention. The reinforcing material 32 is formed separately from the base portion 3 and joined to the base portion 3 by rotational fusion. By forming the reinforcing material 32 separately from the base portion 3, the shape of the base portion molding die is simplified, and the reinforcing material 32 can be molded by extrusion. Other parts are the same as those shown in FIG.
[0023]
FIG. 6 shows a cross section around the base portion in one embodiment of the present invention. The outer peripheral wall 33 is provided by a separate member. After the pole portion 1 is rotationally fused with the insertion portion of the base portion 3, the outer peripheral wall 33 is rotationally fused to the outer peripheral surface of the pole portion 1. Thereby, the rotational fusion of the pole part 1 to the insertion part of the base part 3 becomes easy, and the appearance can be improved by concealing the fusion part. Other parts are the same as those shown in FIG.
[0024]
FIG. 7 shows a cross section around the base portion in one embodiment of the present invention. The outer peripheral wall 33 has a bottom portion 35, and by providing an opening through which the anchor bolt 31 can penetrate in the bottom portion 35, the pole portion 1 and the outer peripheral wall 33 are not joined to each other without fusion or the like. Are attached to the base anchor embedded in the road surface and sandwiched between the base portion 3 and the road surface, so that the pole portion 1 and the base portion 3 are integrated. Other parts are the same as those shown in FIG.
[0025]
【The invention's effect】
The road marking body is separated into a pole part, a cap part, and a base part. The pole part is a simple hollow columnar body, and the cap part and base part are common members. It is possible to form road marking bodies having various heights only by the above. Also, by fusing each member, the joining portion is hardly noticeable in appearance and a strong joining force can be obtained.
[0026]
Although there are a plurality of types of pole portions, the inner diameters are the same along the length direction, and the insertion portions of the cap portion and the base portion must be formed in accordance with the inner diameters of the pole portions. The cylindrical hollow columnar body that forms the pole part is stocked to a certain length, and is cut to an arbitrary length as necessary to form the pole part. The stocked cap part and base part Can be quickly responded to orders. The pole portion is simply a cylindrical hollow columnar body, and the cap portion and the base portion are also limited in shape, so that it is possible to stock in consideration of space efficiency and to save space of the stock.
[Brief description of the drawings]
FIG. 1 shows an embodiment of a road marking body according to the present invention.
2 shows a cap portion constituting the road marking body of FIG. 1. FIG.
3 shows a pole portion constituting the road marking body of FIG. 1. FIG.
4 is a cross-sectional view showing an example of the vicinity of a base portion constituting the road marking body of FIG. 1. FIG.
FIG. 5 is a cross-sectional view showing an example of the vicinity of a base portion constituting the road marking body of FIG.
6 is a cross-sectional view showing an example of the periphery of a base portion constituting the road marking body of FIG.
7 is a cross-sectional view showing an example of the periphery of a base portion constituting the road marking body of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Pole part 2 Cap part 21 Exposed part 22 Cap part insertion part 3 Base part 31 Anchor bolt 32 Reinforcement material 33 Base part outer peripheral wall 34 Base part insertion part 35 Base part outer peripheral wall bottom part

Claims (5)

A cap part and a base part having a cylindrical hollow columnar body having upper and lower ends opened and having the same inner diameter along the length direction, and an insertion part having an outer diameter substantially the same as the inner diameter of the pole part consists of a insertion portion of the cap portion to the upper end of the pole portion is inserted insertion portion of the base portion at the lower end of the pole portion, the cap portion may have a same exposure portion and the outer diameter of the pole portion, and pole Rutotomoni inner and outer surfaces of the insertion portion of the cap portion of the upper end parts and are fused, and wherein the reflecting sheet is adhered with retroreflective the outer peripheral surface of the upper end of the pole portion A road marking object. 2. The road according to claim 1, wherein a plurality of protrusions are provided on the outer surface of the insertion portion of the cap portion that is fused to the inner side surface of the upper end of the pole portion at intervals in the vertical direction. Marking object. The road marking body according to claim 1 or 2, wherein the fusion method is rotational fusion.  The road marking body according to claim 1, 2 or 3, wherein the pole portion is a cylindrical hollow columnar body formed by hollow extrusion molding or spiral molding.  The road marking body according to claim 1, 2, 3, or 4, wherein an anchor bolt projects from a lower end portion of the base portion.

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