JP2021130941A - Road marking and method of constructing road marking - Google Patents

Abstract

To provide a road marking capable of easily and reliably fixing an IC tag to a road surface and a construction method of the road marking.SOLUTION: A road marking according to the present invention is a road marking arranged on a road surface in order to guide a moving body, and includes a base member laid on the road surface in order to be fixed to the road surface, and a melting type road marking member fused to the base member; the melting type road surface marking member includes a notch part formed in a part of a side fused to the base member, an IC tag arranged in a space formed by the notch part, and a heat resistant member arranged so as to close the notch part where the IC tag is arranged.SELECTED DRAWING: Figure 3

Description

The present invention relates to a method for constructing road markings and road markings, and more specifically to a method for constructing road markings and road markings provided with IC tags.

Generally, there are signs installed to guide pedestrians and automobiles passing through the road, and road markings drawn or installed directly on the road surface.

Road markings include, for example, those formed by burying plastic resin and metal studs in the road, and those formed by simply drawing directly on the road with paint. The road markings formed in this way are widely used with various ingenuity in consideration of ease of installation, cost, visibility, and the like.

For example, Patent Document 1 discloses a reflector having a retroreflective material, which is preformed using a melt-type lane marking paint before being installed on a road surface, and has a shape bulging toward the side opposite to the road surface. Has been done. When the melt-type lane marking paint is cured, the reflector is fixed to the asphalt pavement as a reflective road stud, so that the reflector can be easily installed at any place on the road surface.

By the way, in recent years, technologies related to car navigation systems and automatic driving systems using map information, traffic information, driving information, environmental information and the like have been developed. In these systems, how to acquire accurate information such as map information, traffic information, driving information, and environmental information is important, and GPS, in-vehicle cameras, wireless tags, communication technology, etc. are used. There is.

Therefore, there is a technique of mixing an IC tag with a paint applied to a road surface and spraying it using a sprayer or the like at the time of construction of road markings (see, for example, Patent Document 2). Specifically, a paint in a high temperature state (about 200 ° C.) is applied to a predetermined position on the road using a spray gun or the like. Subsequently, the glass beads and the IC tag mixed on the surface of the paint before being cooled and solidified are sprayed using a sprayer or the like. As a result, the IC tag is placed on the surface of the road marking.

Japanese Unexamined Patent Publication No. 2016-164359 Japanese Unexamined Patent Publication No. 2011-252294

However, in the construction method described in Patent Document 2, although the IC tag can be easily arranged by spraying the IC tag on the road surface, the adhesion to the road surface is unstable. Further, although the IC tag is protected by a covering material, it is prominently exposed on the surface of the road surface, so that it is fully conceivable that the IC tag will be worn and damaged when a vehicle or the like passes through it.

Therefore, the present invention has been made in view of the above problems, and one of the objects of the present invention is a road marking and a road marking that can easily and surely fix the IC tag to the road surface. Is to provide the construction method of.

In order to achieve the above object, the present invention comprises at least the following configurations or carries out procedures. In the following description, reference numerals and the like shown in the drawings may be added to facilitate understanding of the present invention, but each component of the present invention is limited to those shown in the drawings. It should be broadly interpreted to the extent that those skilled in the art can technically understand it.

The road marking according to one aspect of the present invention is a road marking arranged on the road surface to guide a moving body, and is a base member laid on the road surface to be fixed to the road surface and the base member. A molten road marking member to be fused is provided, and the molten road marking member is formed by a notch formed on a part of the side to be fused to the base member and the notch. It is characterized by including an IC tag arranged in a space and a heat-resistant member arranged so as to close the notch in which the IC tag is arranged.
With such a configuration, in the road marking according to one aspect of the present invention, since the IC tag is arranged in the space formed by the notch in the molten road marking member fused to the base member, the IC tag is placed on the road surface. Can be easily and securely fixed.

Further, preferably, the heat-resistant member is arranged at least between the base member and the IC tag.
With such a configuration, in the road marking according to one aspect of the present invention, since the heat-resistant member is arranged between the base member and the IC tag, the IC tag is damaged by heat when the road marking is constructed. Can be avoided.

Further, preferably, the heat-resistant member is arranged so as to cover the IC tag arranged in the notch portion.
With such a configuration, in the road marking according to one aspect of the present invention, since the heat-resistant member is arranged so as to cover the IC tag, it is possible to prevent the IC tag from being damaged by heat or impact from the surroundings.

Further, preferably, the heat-resistant member is made of urethane.
With such a configuration, the road marking according to one aspect of the present invention can more reliably protect the IC tag by utilizing the heat resistance and the hardness / elasticity of urethane.

Further, preferably, the molten road marking member has a substantially circular shape or a substantially elliptical shape, and the thickness of the central portion is formed to be larger than that of the peripheral portion, and the notch portion is formed by the molten road marking. It is characterized in that it is formed in the central portion of the member.
With such a configuration, the road marking according to one aspect of the present invention reduces the impact on the vehicle side even if the tires of the vehicle pass through, and the IC is formed in the central portion having a large thickness. Since the tags are arranged, it is possible to prevent the IC tags from being damaged.

Further, preferably, the base member is larger than the molten road marking member.
With such a configuration, the road marking according to one aspect of the present invention reduces the possibility that a gap is formed between the road surface, the base member, and the molten road marking member, and has high adhesion and more reliable adhesion. be able to.

Further, preferably, the surface of the molten road marking member has a curved surface shape.
With such a configuration, the road marking according to one aspect of the present invention can reduce the burden on the vehicle side even if the tires of the vehicle pass through.

Further, preferably, the base material and the melt-type road marking member are formed of a melt-type paint.
With such a configuration, since the road marking according to one aspect of the present invention is formed of the same material, the adhesiveness is good, and the work efficiency and the production efficiency are improved, so that the production cost can be reduced.

Further, preferably, the molten road marking member is formed of a molten paint containing glass beads.
With such a configuration, the road marking according to one aspect of the present invention can be improved in visibility by the glass beads included in the molten road marking member.

Further, preferably, it is a method of constructing a road marking that is arranged on the road surface to guide a moving body, in which a base member is laid on the road surface and the base member laid on the road surface is heated. The molten road marking member is arranged on the melted base member, and the melted road marking member has a notch formed in a part of the side to be fused to the base member. It is characterized by including an IC tag arranged in the space formed by the notch portion and a heat-resistant member arranged so as to close the notch portion in which the IC tag is arranged.
With such a configuration, in the road marking construction method for constructing the road marking according to one aspect of the present invention, the IC tag is arranged in the space formed by the notch in the molten road marking member fused to the base member. Therefore, the IC tag can be easily and surely fixed to the road surface.

As described above, according to the present invention, it is possible to realize a road marking and a method of constructing a road marking that can easily and surely fix the IC tag to the road surface.

It is a figure which shows the state that a vehicle is traveling on the road which arranged the road marking 100 which concerns on one Embodiment of this invention. It is a perspective view which shows the road marking 100 which concerns on one Embodiment of this invention. It is a perspective view which shows the molten road marking member 110 and the base member 200 which constitute the road marking 100 which concerns on one Embodiment of this invention. It is sectional drawing which shows the appearance that the road marking 100 which concerns on one Embodiment of this invention is installed on the road surface 20. It is a flowchart which shows the construction method 400 of the road surface marking which constructs the road marking 100 which concerns on one Embodiment of this invention on the road surface 20.

Hereinafter, one embodiment of the present invention will be specifically described with reference to the drawings. It should be noted that the embodiments described below are merely examples of specific examples for carrying out the present invention, and do not limit the interpretation of the present invention.

<Outline of road markings>
FIG. 1 is a diagram showing a state in which a vehicle is traveling on a road on which a road marking 100 according to an embodiment of the present invention is arranged. In FIG. 1, on the road (road surface) 20 on which the vehicle (moving body) 10 travels, the road marking 100 continuously arranged as the center line 30 includes an IC tag. Using the IC tag, various information is transmitted and received between each vehicle, wireless base station, management center, etc., and for example, the vehicle 10 traveling on the road is controlled to realize driving support, automatic driving, and the like. Will be done.

Typically, the vehicle 10 traveling on the road is assisted or automatically driven along the center line 30. When the vehicle 10 tries to deviate from the center line 30, the IC tag included in each road marking 100 detects it and notifies the driver by operating the warning device provided in the vehicle 10. Further, the IC tag and the driving support system provided in the vehicle 10 guide the vehicle 10 to the correct driving path, or the vehicle 10 is controlled by an automatic driving system that travels on the correct driving path in advance.

It should be noted that the information acquired by using the IC tag installed on the road in this way is not limited to only the vehicle traveling on the road. It is also possible to collect and analyze map information, traffic information such as traffic jams, and environmental information such as weather and temperature via radio base stations, etc., as well as live cameras and security cameras installed on roads, and It can be used in combination with image data acquired by an in-vehicle camera, and can also be used for various other systems and applications.

<Detailed composition of road markings>
FIG. 2A is a perspective view showing the road marking 100 according to the embodiment of the present invention, and FIG. 2B shows the molten road marking member 110 and the base member 200 constituting the road marking 100 according to the embodiment of the present invention. It is a perspective view which shows. In FIGS. 2A and 2B, the road marking 100 includes a molten road marking member 110 and a base member 200.

The melt-type road marking member 110 is formed by solidifying a line material formed of a melt-type paint into a substantially circular shape, and the thickness of the central portion is formed larger than that of the peripheral portion. It is also assumed that the tires of the vehicle pass over the road marking 100, and if the molten road marking member 110 has a substantially circular shape and the thickness of the peripheral portion is smaller than that of the central portion, the road marking 100 On the other hand, regardless of the direction in which the tire passes, the influence of impact on the vehicle can be mitigated. As a result, the burden on the tires of the vehicle and the burden on the vehicle itself can be reduced, and the impact on the driver, passengers, and the load can also be reduced.

Further, the surface of the molten road marking member 110 has a curved surface shape and a gentle shape. If the surface of the molten road marking member 110 is provided with a step shape, when the tire passes over the road marking 100, the step shape gives a large burden to the tire of the vehicle or the vehicle itself. It ends up.

Then, as will be described later, since the IC tag is arranged in the central portion where the thickness is formed to be large, the IC tag may be damaged by increasing the thickness of the central portion in which the IC tag is arranged. I'm avoiding it.

Further, the molten road marking member 110 may be formed of a molten paint containing glass beads. More specifically, as shown in FIGS. 2A and 2B, a melting type formed of a melting type coating material containing glass beads by forming an uneven pattern in a grid pattern on the surface of the melting type road marking member 110. The visibility of the road marking member 110 is further improved.

The base member 200 is formed to be equal to or larger than the molten road marking member 110. This is because when the road marking 100 is formed by the molten road marking member 110 and the base member 200, it is necessary to surely adhere to the road surface 20, and the road surface 20, the molten road marking member 110 and the base member 200 It reduces the possibility of gaps being formed between the two. More specifically, in the molten road marking member 110, the adhesion between the molten road marking member 110 and the base member 200 is increased in order to prevent foreign matter from entering the notch portion described later.

Further, if a melt-type paint similar to the melt-type paint used in the melt-type road marking member 110 is applied to the base member 200, the integrity is improved, the adhesiveness is further improved, and the production efficiency and work efficiency are improved. Will also improve, leading to a reduction in production costs.

FIG. 3 is a cross-sectional view showing a state in which the road marking 100 according to the embodiment of the present invention is installed on the road surface 20. In FIG. 3, a road marking 100 is formed on the road surface 20, and the road marking 100 includes a molten road marking member 110 and a base member 200.

The molten road marking member 110 is fused and arranged on the base member 200 fixed to the road surface 20. Further, the molten road marking member 110 forms a notch portion 111 on a part of the side to be fused with the base member 200, and the IC tag 120 and heat resistance are formed in the space formed by the notch portion 111. The member 130 is arranged.

The IC tag 120 is a wireless electronic device that mainly transmits information to an electronic device provided in the vehicle 10, and is, for example, a wireless tag such as an RFID tag and a UHF tag, but generally has a high temperature (generally). It is vulnerable to (200 degrees or more) and severe impact.

Therefore, the heat-resistant member 130 is arranged at least between the IC tag 120 and the base member 200 so that the IC tag 120 and the base member 200 do not come into contact with each other. When the molten road marking member 110 is fused onto the base member 200, the IC tag 120 comes into contact with the high temperature portion in order to fuse the molten road marking member 110 while heating and melting the base member 200. To prevent damage.

The IC tag 120 is arranged in the space formed by the notch portion 111, and the heat-resistant member 130 so as to close the notch portion 111 in order to protect the IC tag 120 from external foreign matter and the like. Is placed.

Here, urethane foam having low thermal conductivity, hardness, and elasticity is used as the heat-resistant member 130, but the material of the heat-resistant member 130 is not limited to urethane. For example, if the thermal conductivity is low and the space of the notch 111 can be secured by arranging the notch 111 so as to close the notch 111, ceramic, cork, gypsum, clay, glass fiber, etc. It may be wood, resin, or the like.

Further, the road marking 100 formed on the road surface 20 is arranged in the space formed by the notch 111 of the molten road marking member 110 in order for the vehicle to pass through or receive other external impacts. It is necessary to protect the IC tag 120. On the other hand, if the IC tag 120 is submerged in water, data communication cannot be performed well and there is a possibility of radio interference.

Therefore, it is preferable that the IC tag 120 is arranged in the central portion with respect to the thickness direction of the molten road marking member 110. More specifically, it may be arranged at a position of about 3 mm to 6 mm from the uppermost surface of the molten road marking member 110 and about 6 mm to 10 mm from the road surface 20. As a result, even if the road marking 100 is worn, it is possible to prevent the IC tag 120 from being immediately exposed, and even if there is heavy rain, flood, or snowfall, the IC tag 120 is submerged and causes radio interference. The possibility can be reduced.

<Construction method of road markings>
Next, a method of constructing the road marking 100 on the road surface 20 will be described.
FIG. 4 is a flowchart showing a road marking construction method 400 for constructing the road marking 100 according to the embodiment of the present invention on the road surface 20. The road marking construction method 400 includes a base member laying step 410, a base member heating / melting step 420, and a melting type road marking member arranging step 430.

In the base member laying step 410, the base member 200 is laid on the road surface 20. The base member 200 typically has a substantially circular shape as shown in FIG. 2B, and is formed to be equal to or larger than the molten road marking member 110. The size and thickness of the base member 200 may be appropriately set according to the type of road markings arranged on the road surface 20, and for example, those having a diameter of about 70 mm to 120 mm and a thickness of about 1 mm to 3 mm are used. ..

In the base member heating / melting step 420, the base member 200 laid on the road surface 20 is heated and melted by using, for example, a torch or the like. As a result, the base member 200 is adhered to the road surface 20. Here, for the base member 200, for example, a line material resin as a so-called pavement adhesive is used, but a melt-type paint used for the melt-type road marking member 110 may be applied.

In the melting type road marking member arrangement step 430, the melting type road marking member 110 is arranged on the base member 200 in the state of being melted in the base member heating / melting step 420. More specifically, in a state where the surface of the base member 200 is melted, the molten road marking member 110 is placed on the base member 200 before being cured, so that the base member 200 is marked with a molten road surface. The member 110 is adhered.

Here, the molten road marking member 110 has a notch portion 111 formed in a part of the side to be fused to the base member 200, and the IC tag 120 is formed in the space formed by the notch portion 111. Is placed. The IC tag 120 may be melted, damaged or damaged by the heated / melted base member 200, but the heat-resistant member 130 is arranged so as to close the notch 111. Therefore, the IC tag 120 is protected.

By adhering the molten road marking member 110 to the base member 200 adhered to the road surface 20, the road marking 100 composed of the molten road marking member 110 and the base member 200 is securely fixed to the road surface 20. Can be done. Further, since the size of the base member 200 is formed larger than that of the molten road marking member 110, it is difficult for a gap to be generated between the road surface 20 and the molten road marking member 110, and as a result, a notch is formed. Foreign matter and water from the outside are less likely to enter the space formed by the portion 111.

As described above, according to the road marking 100 and the road marking construction method 400 according to the embodiment of the present invention, the road marking member 110 is formed by the cutout portion 111 which is fused to the base member 200. Since the IC tag 120 is arranged in the space, the IC tag 120 can be easily and surely fixed to the road surface 20.

In the present embodiment, the molten road marking member 110 has a substantially circular shape, but is not limited to this, and may have a substantially elliptical shape, for example. If the long axis of the ellipse is arranged along the center line 30, continuity may be ensured as the center line, and in addition, visibility is appropriately considered according to the lane markings and stop lines in the parking lot. It does not matter if it has a shaped shape.

Further, in the present embodiment, the base member 200 is mainly configured to be larger than the molten road marking member 110 as an example, but the present invention is not limited to this, and the base member 200 may have the same size. Further, even if the structure is small, any structure may be used as long as it has a structure of sticking to the road surface 20 and the inside of the cutout portion 111 is sealed.

Further, although the base member 200 is assumed to be a solid having a substantially circular shape as shown in FIG. 2B, it may be in a liquid state. In that case, the liquid road surface marking member 110 is applied to the road surface 20 and the molten road marking member 110 is placed on the base member before it is cured.

Further, in the present embodiment, the heat-resistant member 130 is arranged between the IC tag 120 and the base member 200 so that the IC tag 120 and the base member 200 do not come into contact with each other, but the present invention is limited to this. The heat-resistant member 130 may be arranged so as to cover the IC tag 120 arranged in the notch 111. If the heat-resistant member 130 is arranged so as to cover the IC tag 120, the IC tag 120 can be more firmly protected from external impact, water, high temperature, and the like.

In the present embodiment, the center line 30 formed on the road (road surface) 20 on which the vehicle 10 travels is taken as an example, but the road marking 100 is not limited to the application to such a road. , For example, it may be applied in a sidewalk, a parking lot, or other areas forming a marking line or a stop line.

The specific embodiment of the present invention has been described above. The above description is merely an embodiment, and the scope of the present invention is not limited to this one embodiment, and is broadly interpreted to a range that can be grasped by those skilled in the art.

The present invention can be used for road markings and the like for guiding a moving body, and is particularly useful for road markings and the like provided with an IC tag.

10 Vehicle (moving body)
20 Road (road surface)
30 Center line 100 Road marking 110 Melting road marking member 111 Notch 120 IC tag 130 Heat-resistant member 200 Base member 400 Road marking construction method 410 Base member laying step 420 Base member heating / melting step 430 Melting road marking member Placement step

Claims (10)

A pavement marking placed on the road surface to guide a moving object.
A base member laid on the road surface to be fixed to the road surface, and
A molten road marking member to be fused to the base member is provided.
The molten road marking member is
A notch formed in a part of the side to be fused to the base member,
An IC tag arranged in the space formed by the notch and
A road marking which includes a heat-resistant member arranged so as to close a notch in which the IC tag is arranged. The road marking according to claim 1, wherein the heat-resistant member is arranged at least between the base member and the IC tag. The road marking according to claim 1 or 2, wherein the heat-resistant member is arranged so as to cover the IC tag arranged in the cutout portion. The road marking according to any one of claims 1 to 3, wherein the heat-resistant member is made of urethane. The molten road marking member has a substantially circular shape or a substantially elliptical shape, and has a central portion having a thickness larger than that of a peripheral portion.
The road marking according to any one of claims 1 to 4, wherein the cutout portion is formed in a central portion of the molten road marking member. The road marking according to any one of claims 1 to 5, wherein the base member is larger than the molten road marking member. The road marking according to any one of claims 1 to 6, wherein the surface of the molten road marking member has a curved surface shape. The road marking according to any one of claims 1 to 7, wherein the base material and the molten road marking member are formed of a molten paint. The road marking member according to any one of claims 1 to 8, wherein the molten road marking member is formed of a molten paint containing glass beads. It is a construction method of road markings that are placed on the road to guide moving objects.
A base member is laid on the road surface,
The base member laid on the road surface is heated and melted to melt it.
A molten road marking member is placed on the melted base member, and the road marking member is arranged.
The molten road marking member is
A notch formed in a part of the side to be fused to the base member,
An IC tag arranged in the space formed by the notch and
A method for constructing road markings, which comprises a heat-resistant member arranged so as to close a notch in which the IC tag is arranged.

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