JP2002061129A - Road sign body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a road sign body easily coping with various heights and firmly joining respective members without using a fastening means such as a machine screw and a rivet. SOLUTION: This road sign body is separated into a pole part 1, a cap part 2 and a base part 3. The pole part 1 is a mere hollow columnar body. Since the cap part 2 and the base part 3 are respectively a common member, the road sign body having various heights can be formed only by changing the length of the pole part 1. A joining part is not conspicuous at all in an external appearance by fusing respective members, and strong joining force can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a road marking body used in a state of being fixed and arranged on a pavement road surface for the purpose of center line marking, lane guidance marking or traffic regulation guidance marking of a lane.

[0002]

2. Description of the Related Art A conventional road sign installed on a center line or the like is required to be able to withstand being stepped on a vehicle or the like at a considerable speed, to be restored, and to be able to withstand such a situation a considerable number of times. It is said. Therefore, the base material itself is flexible, and stress tends to be concentrated when trampled, and there is a tendency that a joint that causes separation is not formed 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 above-mentioned method requires various injection molding dies to meet various specifications, particularly to meet a variety of height requirements, and requires many types of stocks for stocking. The fact that a proper number of stocks is required and that stocking in a shape with poor space efficiency requires a large amount of space, which is extremely inefficient.
In order to avoid such a situation, the production is performed after receiving the order, so that the delivery time becomes long, and it is not possible to promptly respond to the request of the customer.

Therefore, in recent years, a sign for roads has been replaced with a cap,
A method has been proposed in which a pole part and a base part are separately stocked in a state of parts, and if necessary, each member is fastened and assembled with bolts, rivets, etc. so that it can correspond to various shapes and heights. ing.

[0005]

However, fastening using bolts, rivets, etc., increases the number of parts, complicates the process management, and leads to an increase in cost. At the same time, in order to secure strength, fastening is performed at several places. Is necessary, and the man-hour for fastening is not small. In addition, bolts, rivets, etc. are exposed, making the appearance unsightly, and rust is also feared at the exposed portions. Further, 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 defects such as breakage and cracks may occur from near the hole of the fastening portion when stepped on a vehicle or the like. .

Accordingly, the present invention provides a road marking body which can easily cope with various heights and in which each member is firmly joined without using fastening means such as screws and rivets.

[0007]

According to the present invention, there is provided a pole portion comprising a cylindrical hollow columnar body having upper and lower ends opened and having the same inner diameter along the length direction, and having substantially the same inner diameter as the pole portion. A cap portion having an insertion portion having an outside diameter of the base portion and a base portion, the insertion portion of the cap portion is inserted at the upper end of the pole portion, the insertion portion of the base portion is inserted at the lower end of the pole portion, and the inner surface of the pole portion and the cap are inserted. The portion and the outer surface of the insertion portion of the base portion are fused and integrated with each other.

The road sign is separated into a pole, a cap, and a base. Since the pole is a simple hollow pillar and the cap and the base are common members,
It is possible to form road markings of various heights only by changing the length of the pole portion. In addition, the fusion bonding of the members makes it possible to obtain a strong bonding force with almost no apparent joints in appearance.

Although there are a plurality of types of pole portions, the inside diameters are the same along the length direction, and the cap portion and the insertion portion of the base portion need to be formed in accordance with the inside diameters of the pole portions, respectively. . The cylindrical hollow columnar body that forms the pole part has a certain length in stock and is cut to an arbitrary length as necessary to make the pole part, and the cap part and base part that are also in stock By fusing together, it is possible to respond quickly to orders. The pole portion is merely a cylindrical hollow columnar body, and the cap portion and the base portion are also limited in shape, so that the inventory can be made in consideration of space efficiency, and the space of the inventory can be reduced.

[0010] The joining method of the respective members may be by adhesion using an adhesive or the like. Since no heat is generated by the bonding method, it is preferable that the bonding force is sufficient because there is no fear of deformation due to release of molding distortion of the resin due to heat.

The fusion according to the present invention may be ultrasonic fusion or high-frequency fusion. However, considering that the fusion members are cylindrical, a substantially constant fusion strength is obtained in the entire fusion portion. It is more preferable to perform rotary fusion, which is easy. The cap or base is inserted into the pole part, and pressure is applied from the outside of the pole part to press the members together and rotate either one or both in the opposite direction. The frictional heat is generated on the surface, and the resin melts on the contact surface due to the heat. After cooling, the resin is integrated and firmly joined. The fused portion is the inner surface of the pole portion, and the joined portion is hardly noticeable in appearance.

An outer peripheral wall is provided at a portion where the base portion is to be fused so as to surround the outside of the fusion portion between the insertion portion of the base portion and the pole portion, so as to conceal leakage of molten resin from the fusion portion. It is preferable to adopt a structure for improving the appearance and preventing a decrease in the strength of the fused portion. The outer peripheral wall may be provided on the outside of the insertion portion by forming a groove into which the tip of the pole portion is fitted by integral molding with the base portion, and after the insertion portion of the base portion and the pole portion are fused. A separate cylindrical member may be provided on the outside of the fused portion by welding or the like, or a cylindrical member having a bottom may be fitted to the fused portion of the base portion and the pole portion to anchor. When the bolt is screwed to the base anchor and fixed, the bottom of the cylindrical member may be sandwiched and fixed between the base and the road surface.

The method of forming the pole portion according to the present invention is not particularly limited as long as a cylindrical hollow column can be formed, and may be injection molding. However, a hollow column having the same inner diameter is obtained continuously. The preferred method is hollow extrusion molding or spiral molding. When molding a hollow column as described above, extrusion molding has higher productivity and efficiency than injection molding, and a continuous hollow column can be obtained, so that a hollow column of any length can be formed, It can be stocked as a hollow pillar having a length corresponding to the length of the pole portion.

As a method of fixing the road marking body to a pavement road surface or the like, there is a method of bonding the road sign surface to the road surface with an adhesive or the like. However, it is preferable to use a method of fixing with an anchor bolt. 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 an anchor bolt is implanted in advance in the base portion when forming the base portion. The method of rotating, screwing and fixing the main body to the road surface is simple, reliable and preferable.

It is preferable that a reinforcing material having an outer diameter slightly smaller than the inner diameter of the pole portion is provided inside the pole portion in order to reduce the bending of the root portion when the pole portion is bent. The reinforcing material may be formed integrally with the base portion, or may be joined to the base portion by welding or bonding before joining the pole portion.

The material of each member is not particularly limited as long as it can be formed and fused, but thermoplastic polyurethane and soft polyolefin are considered in consideration of ease of forming, restorability to trample on a vehicle or the like, durability, and the like. , Elastomers and the like are 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. Is small and can be easily recycled.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows the entire road marking body. A cap portion 2 is integrated at the upper end of a pole portion 1 which is a cylindrical hollow columnar body, and a base portion 3 is integrated at a lower end portion by rotational fusion. An anchor bolt 31 protrudes from the lower end of the base portion 3. Further, a reflective sheet 4 having a retroreflective property is attached to an outer surface on an upper portion of the pole portion.

FIG. 2 shows a pole portion constituting a road marking body. The pole portion 1 is formed by hollow extrusion molding using thermoplastic polyurethane, and has the same inner diameter and wall thickness along the length direction.

FIG. 3 shows a cap constituting a road marking body. The cap part 2 is formed by injection molding using thermoplastic polyurethane, and an exposed part 21 whose outer diameter is substantially the same as the outer diameter of the pole part, and an insertion part whose outer diameter is substantially the same as the inner diameter of the pole part. 22.

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 as the base portion 3 is formed, and the inner surface of the pole portion 1 is rotationally fused to the outer surface of the insertion portion 34 of the base portion 3. Inside the pole portion 1, a reinforcing member 32 having an outer diameter slightly smaller than the inner diameter of the pole 1 is integrally formed with the base portion to reinforce the strength of the root portion where stress is concentrated and reduce bending. An outer peripheral wall 33 integrally formed with the base portion 3 is provided outside the fused portion, so that the fused portion is concealed, the appearance is improved, and the effect of preventing a decrease in the joining strength of the fused portion is obtained. ing.

FIG. 5 shows a cross section around the base portion in one embodiment of the present invention. The reinforcing member 32 is the base portion 3
And is joined to the base part 3 by rotational fusion. By forming the reinforcing member 32 separately from the base portion 3, the shape of the base portion forming die is simplified,
In addition, the reinforcing member 32 can be formed by extrusion. The other parts are the same as in the embodiment shown in FIG.

FIG. 6 shows a cross section around the base portion in one embodiment of the present invention. The outer peripheral wall 33 is provided as a separate member. After the pole portion 1 is rotationally fused to 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. This facilitates rotational fusion of the pole portion 1 to the insertion portion of the base portion 3 and can improve the appearance by hiding the fusion portion. The other parts are the same as in the embodiment shown in FIG.

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, the pole portion 1 and the outer peripheral wall 33 are provided.
The anchor bolt 31 is screwed to a base anchor buried in the road surface without being joined by fusion or the like, and is sandwiched between the base portion 3 and the road surface, so that the pole portion 1 and the base portion 3 are integrated. The other parts are the same as in the embodiment shown in FIG.

[0025]

According to the present invention, a road sign is provided with a pole, a cap,
Separated into the base part, the pole part is a simple hollow columnar body, and the cap part and the base part are common members. Therefore, only by changing the length of the pole part, road marking bodies of various heights Can be formed. In addition, the fusion bonding of the members makes it possible to obtain a strong bonding force with almost no apparent joints in appearance.

Although there are a plurality of types of pole portions, the inside diameters are the same along the length direction, and the cap portion and the insertion portion of the base portion need to be formed in accordance with the inside diameters of the pole portions. . The cylindrical hollow columnar body that forms the pole part has a certain length in stock and is cut to an arbitrary length as necessary to make the pole part, and the cap part and base part that are also in stock By fusing together, it is possible to respond quickly to orders. The pole portion is merely a cylindrical hollow columnar body, and the cap portion and the base portion are also limited in shape, so that the inventory can be made in consideration of space efficiency, and the space of the inventory can be reduced.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a road marking body according to the present invention.

FIG. 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 illustrating an example of a periphery of a base portion constituting the road marking body of FIG. 1;

FIG. 5 is a cross-sectional view showing an example of a periphery of a base portion constituting the road marking body of FIG. 1;

FIG. 6 is a cross-sectional view showing an example of a periphery of a base portion constituting the road marking body of FIG. 1;

FIG. 7 is a cross-sectional view showing an example of the vicinity of a base portion constituting the road marking body of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pole part 2 Cap part 21 Exposed part of cap part 22 Insert part of cap part 3 Base part 31 Anchor bolt 32 Reinforcement 33 Outer wall of base part 34 Insert part of base part 35 Bottom part of outer wall of base part

Claims (5)

[Claims] An upper end and an lower end are opened, and a pole portion formed of a cylindrical hollow columnar body having the same inner diameter along the length direction is provided, and an insertion portion having an outer diameter substantially equal to the inner diameter of the pole portion is provided. It consists of a cap part and a base part, the insertion part of the cap part is inserted at the upper end of the pole part, the insertion part of the base part is inserted at the lower end of the pole part, and the inner surface of the pole part and the insertion part of the cap part and the base part are inserted. A road marking object characterized in that the outer side surface is fused and integrated. 2. A pole portion 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 portion having an outer diameter substantially equal to the inner diameter of the pole portion. It consists of a cap part and a base part, the insertion part of the cap part is inserted at the upper end of the pole part, the insertion part of the base part is inserted at the lower end of the pole part, and the inner surface of the pole part and the insertion part of the cap part and the base part are inserted. A road marking object characterized in that its outer surface is bonded and integrated. 3. The road sign according to claim 1, wherein the fusion method is rotational fusion. 4. The road marking body according to claim 1, wherein the pole portion is a cylindrical hollow pillar formed by hollow extrusion molding or spiral molding. 5. The road sign according to claim 1, wherein an anchor bolt projects from a lower end of the base.