WO2014069347A1

WO2014069347A1 - Road surface marking ring and method for using same

Info

Publication number: WO2014069347A1
Application number: PCT/JP2013/078912
Authority: WO
Inventors: 佐藤　隆
Original assignee: 有限会社キットカッター
Priority date: 2012-10-30
Filing date: 2013-10-25
Publication date: 2014-05-08
Also published as: JP5266468B1; JP2014088693A

Abstract

[Problem] The purpose of the present invention is to provide a road surface marking ring that has a superior slippage-preventing effect over conventional marking rings, and a method for using the same. [Solution] This road surface marking ring comprises: a buried cylindrical portion that is buried in an annular groove formed in the pavement; an expanded arc portion that is formed integrally with the top end of the buried cylindrical portion and extends in the circumferential direction of the buried cylindrical portion, said expanded arc portion expanding above the pavement and in a plan view forming a C shape having a notch for water drainage in a portion in the circumferential direction; and a linear reflecting portion extending and curving along either an outer circumferential face of the expanded arc portion that is inclining downward toward the outside in the radial direction and/or an inner circumferential face of the expanded arc portion that is inclining downward toward the inside in the radial direction, or a plurality of light reflecting portions arranged along the circumferential direction of either the outer circumferential face and/or the inner circumferential face.

Description

Road marking ring and its use

The present invention relates to a road marking ring that can be used by being fitted into an annular groove formed on a paved surface, and a method of using the same.

As road marking objects installed on a conventional pavement surface, what is called a “road fence” that is installed at a center line, an outer line, a pedestrian crossing, an intersection, etc. of a road is known (for example, patent document) 1)

JP 2012-127142 A (paragraph [0002], FIG. 4)

By the way, various conventional materials such as metal, resin, rubber, etc. have been proposed for the roadway, but since all of them are block-shaped, there is a problem that they are slippery when pedestrians and motorcycles get on. It was.

This invention is made in view of the said situation, Comprising: It aims at providing the road marking ring excellent in the slip prevention effect conventionally, and its usage.

The road marking ring according to the first aspect of the present invention made to achieve the above object is an embedded cylinder part embedded in an annular groove formed in a pavement surface and an upper end part of the embedded cylinder part. A bulging arc portion that bulges upward from the pavement surface, and has a C-shape in plan view that extends in the circumferential direction of the portion and has a notch for draining in part of the circumferential direction, A linear reflector that curves and extends along one or both of an outer peripheral surface inclined downward toward the outer side in the radial direction and an inner peripheral surface inclined downward toward the inner side in the radial direction, or the outer peripheral surface and the inner And a plurality of light reflecting portions arranged along one or both circumferential directions of the peripheral surface.

According to a second aspect of the present invention, in the road marking ring according to the first aspect, a linear reflecting member formed by covering a wire having a circular cross section with a reflecting material is fitted in a reflecting member receiving groove formed in a bulging arc portion. To form a linear reflector.

A third aspect of the present invention provides the road marking ring according to the second aspect, wherein the fluorescent or phosphorescent light is provided on one or both of the outer peripheral surface and the inner peripheral surface of the bulging arc portion and extends in parallel with the linear reflecting portion. The linear light-emitting part which has the property is provided.

According to a fourth aspect of the present invention, in the road marking ring according to the third aspect, the linear light-emitting member formed into an arc shape containing a fluorescent agent or a phosphorescent agent is used as a line in the bulging arc portion. The light-emitting member accommodating portion formed in parallel with the shaped reflecting member was fitted into a linear light-emitting portion.

According to a fifth aspect of the present invention, in the road marking ring according to the fourth aspect of the present invention, the linear light emitting member projects over the reflective member housing groove and is placed on the linear reflective member.

A sixth aspect of the present invention is the road marking ring according to any one of the first to fifth aspects, wherein the shaft is formed on one or both of the outer peripheral surface and the inner peripheral surface of the embedded cylindrical portion. It has a groove shape that extends in the direction and opens downward, and includes a wire rod holding groove that holds a part of the peripheral surface of the linear member inserted from the lower end portion so as to protrude from the embedded tube portion.

According to a seventh aspect of the invention, in the road marking ring according to the sixth aspect of the invention, the wire rod holding groove is configured to become shallower as it goes upward.

The invention according to claim 8 is the road marking ring according to any one of claims 2 to 5, wherein the main body of the road marking ring is formed of a pigment, a photocatalyst, or an elastomer in which a pigment and a photocatalyst are compounded. The linear reflecting member is fixed and provided.

The method of using the road marking ring according to the invention of claim 9 is to irradiate the road marking ring according to any one of claims 3 to 5 with light containing ultraviolet rays.

[Inventions of Claims 1 and 2]
According to the first aspect of the present invention, when the road marking ring is fitted and installed in the annular groove formed on the pavement surface, the bulging arc portion protrudes above the pavement surface. The bulging arc portion has a C-shape in plan view, and since the central portion surrounded by the bulging arc portion is a recess, the bulging arc portion does not slide like a conventional road-shaped road fence. Rather, it can be used for anti-slip. Moreover, since the road surface marking ring is installed by embedding a cylindrical embedded cylindrical portion in the annular groove portion, the road surface marking ring installed on the pavement surface can be made difficult to come off. In addition, since one or both of the outer peripheral surface and the inner peripheral surface of the bulging arc portion that bulges upward from the pavement surface is provided with a linear reflecting portion or a plurality of light reflecting portions, the linear reflecting portion or The road marking ring can be visually recognized at night or in a dark place by the reflected light reflected by the plurality of light reflecting portions.

In addition, the linear reflection portion and the plurality of light reflection portions can reflect light from all directions such as the side, the upper side, and the diagonally upper side of the bulging arc portion. In particular, if a linear reflecting portion or a plurality of light reflecting portions are provided on both the outer peripheral surface and the inner peripheral surface of the bulging arc portion, light from all directions around the bulging arc portion can be reflected. The visibility is further improved. In addition, the road marking ring can be viewed three-dimensionally by reflecting light incident from one direction by the linear reflecting portions or the plurality of light reflecting portions on both the outer peripheral surface and the inner peripheral surface of the bulging arc portion. it can.

Here, a coating material that reflects light may be applied linearly to the bulging arc portion to form a linear reflecting portion, or a reflective tape that reflects light may be applied linearly to the bulging arc portion to reflect linearly. It is good also as a part. Further, a plurality of reflective beads that reflect light along the outer peripheral surface and the inner peripheral surface of the bulging arc portion may be arranged in a line to form a linear reflection portion. A linear reflecting member formed by covering a wire with a reflecting material that reflects light may be fitted into the reflecting member receiving groove of the bulging arc portion to form a linear reflecting portion. In addition, the linear reflecting member may be one in which the outer peripheral surface of the wire is coated with a paint that reflects light, or may be one in which a reflective tape is wound around the outer peripheral surface of the wire. According to the second aspect, the reflection surface of the linear reflection portion provided along the outer peripheral surface of the bulging arc portion can be constituted by a curved surface that is convex outward in the radial direction. Moreover, the reflective surface of the linear reflective part provided along the internal peripheral surface of the bulging arc part can be comprised by the curved surface which protruded toward the inner side of radial direction.

[Inventions of Claims 3 and 4]
According to claim 3, when the linear light emitting part having fluorescence is provided, the fluorescent light can be emitted by the light including ultraviolet rays incident on the linear light emitting part. The visibility in a dim place can be particularly improved. In addition, when equipped with a linear light-emitting part that has phosphorescent properties, the energy of ultraviolet rays contained in sunlight or light of lighting equipment can be stored in the linear light-emitting part to emit light, and at night or during a sudden power outage The visibility of the road marking ring can be ensured even in the dark. Moreover, since the linear light emitting portion extends in parallel with the linear reflecting portion on one or both of the outer peripheral surface and the inner peripheral surface of the bulging arc portion, the linear light emitting portion can be viewed from any direction around the bulging arc portion. It is possible to visually recognize the light emission.

Here, a fluorescent light-emitting or phosphorescent light-emitting paint may be applied linearly to the bulging arc part to form a linear light-emitting part, or a fluorescent light-emitting or light-storing light-emitting tape may be applied in a line. A light emitting part may be used. Alternatively, as in the invention of claim 4, a linear light-emitting member that is formed in an arc shape containing a luminescent agent having fluorescence or phosphorescence is fitted into the light-emitting member housing portion of the bulging arc portion to form a linear shape A light emitting unit may be used.

[Invention of claim 5]
According to the invention of claim 5, the linear light emitting member extends over the reflecting member housing groove and is disposed so as to overlap the linear reflecting member, so that the linear reflecting member is arranged with respect to the reflecting member housing groove. It can be prevented from coming off. Further, the linear reflecting member can be prevented from being stepped directly on by a vehicle or a pedestrian.

[Invention of claim 6]
According to the invention of claim 6, when the fitting between the annular groove portion of the pavement surface and the buried cylinder portion is loose and the road marking ring is loose, the linear member is attached to the wire rod holding groove of the buried cylinder portion. With this, the play can be eliminated. That is, part of the peripheral surface of the linear member inserted from the lower end portion of the wire holding groove protrudes from the wire holding groove and protrudes from the outer peripheral surface or inner peripheral surface of the embedded tube portion. By the protrusion, the embedded cylinder portion and the annular groove portion can be fitted, and the rattling of the road marking ring can be eliminated.

[Invention of Claim 7]
According to the seventh aspect of the present invention, when the buried cylinder is inserted into the annular groove with the linear member mounted on the buried cylinder, the lower end of the linear member is not caught on the edge of the annular groove. Thus, the operation of fitting the road marking ring into the annular groove can be performed smoothly.

[Invention of Claim 8]
According to the eighth aspect of the present invention, if the photocatalyst is compounded, the antifouling action can decompose the dirt adhering to the bulging arc portion and suppress slimming. Further, even if the surface of the bulging arc part is worn away, a new photocatalyst is exposed from the inside, so that the antifouling action can be maintained for a long time. Further, by coloring the main body of the road marking ring with a pigment, it is possible to improve daytime visibility or decoration. Moreover, the visibility in the dark at the time of a night or a power failure can be improved more by compounding the pigment which has fluorescence or luminous property. Moreover, since the main body of the road marking ring is made of an elastomer, it has an excellent anti-slip effect on the tire and can reduce the impact when stepped on.

[Invention of claim 9]
According to the invention of claim 9, since light containing ultraviolet rays is reflected by the linear reflecting portion, and the linear light emitting portion emits light by light containing ultraviolet rays, the visibility of the road marking ring at night or in a dark place is improved. Can be secured. Moreover, the reflected light of the linear reflection part and the light emission of the linear light emission part can be visually recognized from all directions around the bulging arc part.

The top view of the road marking ring which concerns on 1st Embodiment of this invention. Bottom view of road marking ring Sectional view taken along the line XX in FIG. 1 is a cross-sectional view taken along the line YY in FIG. Partial enlarged sectional view of the road marking ring from which the linear light emitting member is removed Partial enlarged sectional view of the road marking ring with the linear reflecting member removed Plan view of the main body of the road marking ring FIG. 7 is a cross-sectional view taken along the line ZZ in FIG. Sectional view of the road marking ring fitted in the annular groove Plan view of the road marking ring according to the second embodiment Sectional view taken along the line WW in FIG. Side view of road excavator Front view of road excavation tool Side view of rotary drilling tool Exploded side sectional view of a rotary drilling tool Perspective view of outer bit Side cross-sectional view of a rotary excavation tool in a state of excavating while sucking Side cross-sectional view of a rotary excavation tool while digging while pouring water Side sectional view of a rotary excavation tool according to another embodiment Side sectional view of a rotary excavation tool according to another embodiment Side sectional view of a rotary excavation tool according to another embodiment Plan view of the road marking ring according to the reference example Sectional view taken along the line VV in FIG.

[First Embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the road marking ring 10 has an annular shape in plan view, and is used by being fitted into an annular groove M1 formed on the pavement surface S1 as shown in FIG. The annular groove M1 is formed by, for example, excavating the pavement surface S1 with a rotary excavating tool described later, and has a cylindrical structure in which the outer portion in the radial direction is shallower than the inner portion.

The road marking ring 10 includes an embedded cylinder part 30 embedded in the annular groove part M1 and a bulging arc part 20 formed integrally with the upper end part of the embedded cylinder part 30. Further, the bulging arc portion 20 includes a linear reflecting member 40 and a linear light emitting member 50 which will be described later, and the bulging arc portion 20 excluding the linear reflecting member 40 and the linear light emitting member 50 is provided. The main body 21 and the embedded cylinder part 30 are integrally formed (see FIG. 8). A main body 11 of the road marking ring 10 which is an integrally molded product is a molded product of an elastomer (for example, a soft vinyl chloride resin) compounded with a photocatalyst (for example, titanium oxide), for example, white, orange, blue, It is colored in other vivid colors.

The embedded cylinder portion 30 has a shape that matches the internal shape of the annular groove portion M1 described above. That is, the embedded cylinder portion 30 includes a cylindrical portion 31 that fits in the deep groove portion of the annular groove portion M1, and a flange portion 32 that protrudes laterally from the outer peripheral surface of the upper end of the cylindrical portion 31 and fits in the shallow groove portion of the annular groove portion M1. And have. Further, in order to facilitate the insertion operation into the annular groove M1, the lower end portion of the cylindrical portion 31 has a tapered conical shape. When the road marking ring 10 is fitted into the annular groove M1, the upper surface of the flange 32 and the pavement surface S1 are configured to be substantially flush with each other. In addition, it is difficult to remove the road marking ring 10 installed on the pavement surface S1 by installing the embedded cylindrical part 30 having a cylindrical shape in the annular groove M1. In addition, the deep groove portion and the shallow groove portion are provided in the annular groove portion M1, and the cylindrical portion 31 and the flange portion 32 are respectively fitted to the annular groove portion M1, thereby further preventing the road marking ring 10 from coming off.

2 and 3, a plurality of wire rod holding grooves 33 are formed on the outer peripheral surface and the inner peripheral surface of the embedded tube portion 30, respectively. The wire holding groove 33 has an arcuate cross-sectional shape that extends in the axial direction of the embedded cylinder portion 30 and opens downward. Further, the wire holding groove 33 is configured to gradually become shallower from the lower end portion of the embedded cylinder portion 30 toward the upper end portion.

Specifically, the plurality of wire rod holding grooves 33 formed on the outer peripheral surface of the embedded tube portion 30 are arranged at equal intervals in the circumferential direction of the embedded tube portion 30, and the central axis thereof is the lower end of the embedded tube portion 30. It inclines so that it may leave | separate from the central axis of the embedded cylinder part 30 as it goes to an upper end part from a part.

On the other hand, as shown in FIG. 2, the plurality of wire holding grooves 33 formed on the inner peripheral surface of the embedded cylinder portion 30 are arranged so as to be shifted in the circumferential direction with respect to the wire holding grooves 33 formed on the outer peripheral surface. The central axis is inclined so as to approach the central axis of the embedded cylinder part 30 as it goes from the lower end part to the upper end part of the embedded cylinder part 30.

These wire rod holding grooves 33 have a dominant arc or circle in at least part of the axial direction, and hold the linear member L1 inserted from the lower end of the wire rod holding groove 33 (see FIGS. 3 and 4). It is possible to do. The linear member L1 has a circular cross section, and when the linear member L1 is mounted in the wire rod holding groove 33, a part of the outer peripheral surface of the linear member L1 protrudes from the wire rod holding groove 33 and the outer periphery of the embedded cylinder portion 30. It protrudes from the surface or inner peripheral surface. When the fitting between the annular groove part M1 and the buried cylinder part 30 is loose and the road marking ring 10 is rattled, the annular groove part M1 and the buried cylinder part 30 are fitted by attaching the linear member L1 to the buried cylinder part 30. The backlash of the road marking ring 10 can be eliminated. The linear member L1 is preferably an elastomer.

Here, as described above, the wire holding groove 33 becomes shallower from the lower end portion toward the upper end portion. Therefore, when the embedded cylindrical portion 30 with the linear member L1 is inserted into the annular groove portion M1, the wire holding groove 33 is formed. It is possible to prevent the lower end portion of the shaped member L1 from being caught on the edge portion of the annular groove portion M1, and the fitting operation of the road marking ring 10 to the annular groove portion M1 can be performed smoothly.

The bulging arc portion 20 of the road marking ring 10 extends in the circumferential direction of the embedded cylinder portion 30 and has a notch portion 22 for draining water (see FIGS. 1 and 9) in a part of the circumferential direction C. It has a letter shape. Further, as shown in FIG. 3, the bulging arc portion 20 projects radially inward of the embedded cylinder portion 30, and in a state where the road marking ring 10 is fitted in the annular groove portion M1, as shown in FIG. The lower surface of the bulging arc portion 20 is superimposed on the pavement surface S1, and the entire bulging arc portion 20 bulges upward from the pavement surface S1. On the other hand, the upper surface of the notch 22 is substantially flush with the pavement surface S1, so that rainwater and dust entering the inside of the bulging arc portion 20 are smoothly discharged.

As shown in FIG. 3, the cross section of the bulging arc portion 20 has a gentle mountain shape (saddle shape). A plurality of block-shaped protrusions 23 are formed at the summit portion of the bulging arc portion 20. Further, the outer peripheral surface of the bulging arc portion 20 has a retroreflective property on the outer peripheral surface inclined downward from the summit toward the outer side in the radial direction and the inner peripheral surface inclined downward from the summit in the radial direction. The linear reflection part 24 (refer FIG. 1) which has is provided. The linear reflecting portion 24 continuously extends over a range of about 270 degrees around the central axis of the road marking ring 10.

The linear reflecting portion 24 is configured by fitting a linear reflecting member 40 (see FIG. 3), which is a separate part from the main body 11 of the road marking ring 10, into a reflecting member accommodation groove 26 formed in the bulging arc portion 20. Has been. The linear reflecting member 40 has a structure in which a reflective tape having a retroreflective property (corresponding to the “reflecting material” of the present invention) is wound around the outer peripheral surface of an elastomer wire having a circular cross section in a winding shape. . On the other hand, as shown in FIG. 6, the reflecting member accommodating groove 26 has a groove shape with an arcuate cross section, and extends in a curved manner along the outer peripheral surface and inner peripheral surface of the bulging arc portion 20 ( (See FIG. 7). The linear reflecting member 40 may be fixed with an adhesive. Further, the wire as the core of the linear reflecting member 40 and the linear member L1 used by being mounted on the embedded cylinder portion 30 may have the same diameter, and may be manufactured by separating them from common linear parts. .

As shown in FIG. 1, a linear light emitting portion 25 having fluorescence or phosphorescence is provided on the outer peripheral surface and inner peripheral surface of the bulging arc portion 20. The linear light emitting unit 25 extends in a concentric arc shape in parallel with the linear reflecting unit 24. Further, the linear light emitting portion 25 continuously extends over the same range as the linear reflecting portion 24 in the circumferential direction of the bulging arc portion 20, that is, about 270 degrees around the central axis of the road marking ring 10. ing.

The linear light emitting portion 25 is formed by forming a linear light emitting member 50 (see FIG. 3) containing a fluorescent or phosphorescent light emitting agent and shaped in an arc shape on the bulging arc portion 20 (main body 21). The light emitting member accommodating portion 27 is fitted (see FIG. 5). The linear light emitting member 50 is made of, for example, an elastomer.

As shown in FIG. 4, the linear light emitting member 50 protrudes above the reflecting member housing groove 26 and overlaps the linear reflecting member 40. More specifically, as shown in FIG. 6, the upper surface of the linear light emitting member 50 is an inclined surface 51 that constitutes the linear light emitting unit 25. An arc-shaped concave curved surface 52 corresponding to the cross-sectional shape of the linear reflective member 40 is formed on a portion of the lower surface of the linear light emitting member 50 that protrudes above the reflective member housing groove 26. An uneven portion 53 is formed adjacently. The inclined surface 51, the concave curved surface 52, and the uneven portion 53 are continuous over the entire length of the linear light emitting member 50.

On the other hand, the light emitting member accommodating portion 27 is formed on the peak side of the bulging arc portion 20 with respect to the reflecting member accommodating groove 26, and extends in parallel with the reflecting member accommodating groove 26 (see FIG. 7). The light emitting member accommodating portion 27 has an uneven portion 28 extending over the entire length thereof, and the uneven portion 28 and the uneven portion 53 of the linear light emitting member 50 are engaged with each other (see FIG. 6). By arranging the linear light emitting member 50 so as to overlap the linear reflecting member 40 accommodated in the reflecting member accommodating groove 26, the linear reflecting member 40 can be prevented from coming off from the reflecting member accommodating groove 26. Further, since the linear reflecting member 40 can be prevented from being stepped on directly by a vehicle or a pedestrian, the reflection performance of the linear reflecting member 40 can be maintained for a long period of time. The linear light emitting member 50 may be fixed by an adhesive or welded to the main body 21 of the bulging arc portion 20 (specifically, vibration welding). Further, in order to extend the life of the linear reflecting portion 24 and the linear light emitting portion 25, the linear reflecting portion 24 and the linear light emitting portion 25 are made of a transparent elastomer integrated with the bulging arc portion 20. You may make it the structure covered with the protective cover (not shown).

The configuration of the present embodiment is as described above. When the road marking ring 10 is installed on the pavement surface S1, first, an annular groove M1 is formed on the pavement surface S1 with a rotary excavation tool. Next, the excavation waste in the annular groove M1 is removed, and the road marking ring 10 is fitted into the annular groove M1 by trial. At this time, when the road surface marking ring 10 rattles in the annular groove portion M1, the linear member L1 is attached to the embedded tube portion 30 to fit the embedded tube portion 30 and the annular groove portion M1. Further, when the shallow groove portion of the annular groove portion M1 is too deep and the bulging arc portion 20 is buried in the shallow groove portion, a plate-like spacer 60 (see FIG. 9) is formed between the shallow groove portion and the flange portion 32. The height is adjusted so that the bulging arc portion 20 bulges above the pavement surface S1.

Next, the road marking ring 10 is once removed, and a filler for filling the gaps between the road marking ring 10 and the annular groove M1 and the pavement surface S1 is injected into the annular groove M1. Finally, the road marking ring 10 is fitted into the annular groove M1. At this time, it arrange | positions so that the notch part 22 may become the lower side of the gradient of pavement surface S1. For example, the road marking ring 10 is arranged so that the cutout portion 22 is on the downhill side on the pavement surface S1 of the slope. Further, since a general paved road is provided with a cross slope for drainage, the road marking ring 10 is arranged so that the notch 22 is below the cross slope. This completes the installation of the road marking ring 10.

When the road surface marking ring 10 is embedded in the annular groove portion M1, the bulging arc portion 20 protrudes above the pavement surface S1. The bulging arc portion S1 has a C-shape in plan view, and the central portion surrounded by the bulging arc portion S1 is a recess (see FIG. 9). However, it can be used to prevent slipping. Further, since the road marking ring 10 is installed by embedding the cylindrical buried cylinder 30 in the annular groove M1 formed on the pavement surface S1, it is difficult to remove the road marking ring 10 installed on the pavement surface S1. can do. Moreover, since the main body 11, the linear reflecting member 40, and the linear light emitting member 50 of the road marking ring 10 are made of elastomer, they are not easily damaged even if they are repeatedly stepped on. It will not be a hindrance.

When light is irradiated to the road marking ring 10 (the bulging arc portion 20) at night or in a dark place (such as a tunnel or an underground parking lot), the light is retroreflected by the linear reflecting portion 24. For example, when the vehicle headlight is irradiated on the linear reflector 24, the vehicle driver can visually recognize the reflected light, and the visibility of the road marking ring 10 can be ensured even at night or in a dark place. . Moreover, since the linear reflection part 24 is provided in both the outer peripheral surface and inner peripheral surface of the bulging circular arc part 20, and is extended in circular arc shape along the circumferential direction, the side of the bulging circular arc part 20 is provided. It is possible to retroreflect light from all directions such as upward and obliquely upward. For example, even when light is irradiated from the outer peripheral surface of the bulging arc portion 20 from the side of the cutout portion 22 (below the paper surface in FIG. 1), it is provided along the inner peripheral surface of the bulging arc portion 20. Since the light can be retroreflected by the linear reflecting portion 24, the light from all directions around the bulging arc portion 20 can be retroreflected. As a result, the road marking ring 10 can be visually recognized from all directions around the road marking ring 10 and, at the time of installation on the pavement surface S1, it is possible to save time and effort for fine angle adjustment in consideration of the incident direction of light.

If the linear light emitting part 25 provided in the road marking ring 10 has fluorescence, linear light emission is caused by light irradiated to the linear light emitting part 25 (ultraviolet rays, particularly black light is effective). The portion 25 can be made to emit fluorescent light, and in particular, visibility in a dim time zone at dawn or evening or in a dim place can be improved. Moreover, if the linear light emission part 25 has a luminous property, the energy of the light (ultraviolet light) of sunlight and a lighting fixture (for example, a fluorescent lamp, a black light) is stored in the linear light emission part 25, and it makes it light-emit. The visibility of the road marking ring 10 can be ensured even in the dark at night or during a sudden power failure. And since the linear light emission part 25 is extended in parallel with the linear reflection part 24 on both the outer peripheral surface and internal peripheral surface of the bulging circular arc part 20, similarly to the linear reflective part 24, the bulging circular arc part The light emission of the linear light emitting unit 25 can be visually recognized from all directions around 20. Thereby, the visibility of the road marking ring 10 at night or in a dark place is further improved.

Further, since the main body 11 of the road marking ring 10 is colored in white, orange, blue, or other clear colors, the visibility of the road marking ring 10 in the daytime is improved and the decorativeness is improved. Moreover, since the main body 11 of the road marking ring 10 is made of an elastomer compounded with a photocatalyst, the dirt attached to the surface of the bulging arc portion 20 is decomposed or suppressed by the antifouling action of the photocatalyst. Can do. Further, even if the surface of the bulging arc portion 20 is worn away by friction with the tire or the like, a new photocatalyst is exposed from the inside, so that the antifouling action can be maintained for a long time. Furthermore, since the main body 11 of the road marking ring 10 has appropriate toughness, it has an excellent anti-slip effect on the tire and can reduce the impact when stepped on.

If the road marking ring 10 of the present embodiment is provided on, for example, a road center line, an outer line, a pedestrian crossing, a stop line, or a parking lot demarcation line, the presence thereof is clearly shown to the driver at night or in a dark place. can do. Moreover, since the unevenness | corrugation by the bulging circular arc part 20 can be formed in pavement surface S1, not only a slip prevention effect but alerting to the driver by vibration can be performed.

[Second Embodiment]
Hereinafter, the second embodiment of the present invention will be described with reference to FIGS. 10 and 11. The present embodiment is different from the first embodiment in that a plurality of light reflecting portions (plate-like reflecting members 45) are scattered along the circumferential direction of the outer peripheral surface and inner peripheral surface of the bulging arc portion 20. Is different. Hereinafter, only differences from the first embodiment will be described, and the same components as those in the first embodiment will be denoted by the same reference numerals, and redundant description will be omitted.

As shown in FIG. 10, for example, seven plate-like reflecting members 45 are arranged at equal intervals in the circumferential direction on the outer circumferential surface of the bulging arc portion 20, and are arranged on the inner circumferential surface of the bulging arc portion 20. For example, five plate-like reflecting members 45 are arranged at equal intervals in the circumferential direction. Each of the plurality of plate-like reflecting members 45 is fitted in a mounting recess 29 formed in a recessed manner in the main body 21 of the bulging arc portion 20.

In the present embodiment, a plurality of plate-like reflecting members 45 are scattered over the entire circumferential direction of the inner circumferential surface of the bulging arc portion 20. A configuration in which the plate-like reflecting member 45 is disposed only on the side opposite to the cutout portion 22 (for example, five plate-like reflecting members provided on the inner peripheral surface of the bulging arc portion 20 in FIG. 10) 45, a configuration in which the two plate-like reflecting members 45 at both ends are eliminated. Moreover, the structure which has arrange | positioned the several plate-shaped reflection member 45 in the circumferential direction of the bulging circular arc part 20 at unequal intervals may be sufficient.

As shown in FIG. 11, the plate-like reflecting member 45 has a structure in which a base plate 46 and a reflecting plate 47, both of which have a rectangular plate shape, are superposed, with the reflecting plate 47 facing obliquely upward. It is fixed to the mounting recess 29. Note that the reflection plate 47 only needs to have retroreflectivity, and for example, a prism (corner cube) type reflection plate or a transparent microsphere (glass bead) type reflection plate can be used. Moreover, you may employ | adopt the thing which apply | coated the reflective paint to the single side | surface of a board | plate material, and the thing which stuck the reflective seal | sticker as a reflecting plate.

The plate-like reflecting member 45 is covered with a protective cover 48 integrated with the main body 21 of the bulging arc portion 20. The protective cover 48 is made of a transparent elastomer that transmits incident light and reflected light with respect to the plate-like reflecting member 45. Here, the protective cover 48 may be configured to extend in an arc shape along the outer peripheral surface or inner peripheral surface of the bulging arc portion 20 so as to cover the plurality of plate-like reflection members 45, or a plurality of plate-like reflections. The structure which covers the member 45 separately one by one may be sufficient. The plate-like reflecting member 45 is pressed by the protective cover 48 and cannot be detached from the mounting recess 29.

The protective cover 48 may be a molded product molded separately from the main body 11 of the road marking ring 10, and the plate-like reflecting member 45 fitted in the mounting recess 20 is sealed with an elastomer sealing material. The sealing material may be used as the protective cover 48.

According to the present embodiment, the same effect as that of the first embodiment is obtained, and the plate-like reflecting member 45 is covered with the protective cover 48, so that the plate-like reflecting member 45 is directly stepped on by a vehicle or a pedestrian. The reflection performance can be maintained over a long period of time. Moreover, it can prevent that the plate-shaped reflection member 45 comes off from the main body 11 of the road marking ring 10 and is scattered on the road surface.

[Addition]
A rotary excavation tool 110, a road excavation device 200, and a road excavation method used when excavating the annular groove M1 for fitting the road marking ring 10 to the pavement surface S1 will be described with reference to FIGS. 12A to 17. To do.

A rotary excavation tool 110 is detachably attached to the road excavation device 200, and when the rotary excavation tool 110 is pressed substantially perpendicularly to the pavement surface S1 in a rotating state, a road marking ring is provided as shown in FIG. An annular groove M1 for fitting 10 is formed on the pavement surface S1.

As shown in FIG. 12B, the road surface excavator 200 includes a main body base 190 that can be fixed to the pavement surface S <b> 1, a pair of

guide posts

191 and 191 that stand vertically from the main body base 190, and the guide posts 191 and 191. And a movable base 192 supported to be movable up and down. A feed screw 188 passes vertically through the movable base 192, and the movable base 192 can be raised and lowered by rotating the feed screw 188 by rotating the handle 189.

The movable base 192 includes a spindle unit 193 for rotatably holding the rotary excavation tool 110, and a drive source 198 (specifically, an electric drive unit rotatively driving the rotary excavation tool 110 held by the spindle unit 193). Motor or engine).

As shown in FIG. 12A, the main shaft unit 193 has a structure in which a main shaft 195 penetrating the inside of the cylindrical housing 194 is rotatably supported by bearings (not shown) provided on the inner surfaces of both ends of the cylindrical housing 194. There is no. The main shaft 195 has a cylindrical structure with both ends open, and a rotary joint 196 is attached to an upper end portion protruding from the cylindrical housing 194 so as to be relatively rotatable. A flow path (not shown) communicating with the inside of the main shaft 195 is formed inside the rotary joint 196. One end of the flow path passes through a hose adapter 196A that protrudes from the side surface of the rotary joint 196, and a water supply device that supplies a suction device 210 for sucking dust or cooling water (generally tap water) to the hose adapter 196A. One of 220 is selectively connectable (see FIG. 12A).

On the other hand, a pulley 197 is integrally provided at the lower end portion of the main shaft 195 protruding downward from the movable base 192. The pulley 197 and a pulley 198B provided on the output rotation shaft 198A of the drive source 198 are connected by a belt 199, whereby the main shaft 195 and the rotary excavation tool 110 connected to the lower end of the main shaft 195 rotate at high speed. It is supposed to be.

Here, the rotary excavation tool 110 can be directly connected to the main shaft 195 as shown in FIG. 14, or can be connected to the main shaft 195 via the extension cylinder portion 111 as shown in FIG. As shown in FIG. 14, the extension cylinder part 111 is equipped with the

screw parts

112 and 113 on the upper end inner peripheral surface and the lower end outer peripheral surface, respectively. The screw portion 112 on the inner peripheral surface of the upper end can be screwed to the lower end portion of the main shaft 195, and the screw portion 113 on the outer peripheral surface of the lower end can be screwed to the upper end of the rotary excavation tool 110.

The rotary excavation tool 110 is made of, for example, stainless steel or carbon steel, and has a cylindrical structure with both ends open. As shown in FIG. 13, the rotary excavation tool 110 is connected to the main shaft 195 of the road surface excavator 200 directly or via the extension cylinder portion 111 and is connected to the lower end portion of the tube 130, and the pavement surface S <b> 1. And an inner bit 120 for drilling.

The inner bit 120 is provided coaxially below the connection cylinder 131 provided at the upper end of the tube 130 and has a flat cylindrical shape having a larger diameter than the connection cylinder 131. A male screw cylinder 121 is provided at the upper end of the inner bit 120. The male screw cylinder portion 121 is formed by reducing the outer diameter of the upper end portion of the inner bit 120 to a stepped shape and forming a male screw at the small diameter portion.

On the other hand, a plurality of

chips

122, 122 whose tips are pointed in a mountain shape are provided at the lower end of the inner bit 120. These

chips

122, 122 protrude downward and are arranged at equal intervals along the circumferential direction of the inner bit 120. Further, as shown in FIG. 14, the thickness of the chip 122 is thicker than the thickness of the peripheral wall of the inner bit 120, and protrudes into and out of the peripheral wall of the inner bit 120. In addition, the chip | tip 122 is what sintered the metal bond and the diamond abrasive grain, for example, and is being fixed by brazing or welding (laser welding).

As shown in FIG. 13, an outer bit 140 is provided outside the inner bit 120 so as to be integrally rotatable. The outer bit 140 is formed by fixing a plurality of

chips

142, 142 to an annular plate-shaped flange wall 141 (see FIG. 15) protruding to the side of the inner bit 120. The

tips

142 and 142 protrude downward from the lower surface of the flange wall 141 near the outer edge, and are disposed above the

tips

122 and 122 of the inner bit 120. Further, the

tips

142 and 142 are made of the same material as the

tips

122 and 122 provided in the inner bit 120, and the lower ends thereof are pointed, and are brazed or welded to the flange wall 141. Here, the

chips

142 and 142 of the outer bit 140 and the

chips

122 and 122 of the inner bit 120 are disposed adjacent to each other in the radial direction, and the

chips

122 and 142 are disposed so as to partially overlap each other in the vertical direction. ing.

The above-described inner bit 120 and outer bit 140 are provided with a plurality of types having different specifications (materials and dimensions) and can be appropriately replaced according to the material of the paving material and the design dimensions of the target annular groove. ing. Further, when the

tips

122 and 142 are worn and cannot be excavated, only the inner bit 120 or the outer bit 140 can be replaced.

Incidentally, as shown in FIG. 14, in the rotary excavation tool 110, the tube 130 includes a connection cylinder part 131, a relay cylinder part 132, and a female screw cylinder part 133 in order from the upper side. A female screw 131A is formed on the inner peripheral surface of the connecting tube portion 131, and the lower end portion of the main shaft 195 or the screw portion 113 of the extension tube portion 111 can be screwed therein.

The female screw cylinder part 133 is formed by forming a female screw 133A on the inner peripheral surface of a flat cylindrical body provided integrally with the lower end part of the relay cylinder part 132. A male screw cylinder 121 provided at the upper end of the inner bit 120 is screwed into the female screw cylinder 133. Further, between the stepped portion 127 formed at the proximal end portion of the male screw cylinder portion 121 on the outer peripheral surface of the inner bit 120 and the lower end edge of the tube 130 (female screw cylinder portion 133), The inner edge of the collar wall 141 is sandwiched, whereby the outer bit 140 is fixed so as to be rotatable together with the inner bit 120 (see FIG. 16).

During excavation, the rotary excavation tool 110 (main shaft 195) rotates in the direction in which the male screw cylinder portion 121 and the female screw cylinder portion 133 are tightened (clockwise when viewed from above). The outer bit 140 does not come off because the screwed state between the screw cylinder 121 and the female screw cylinder 133 is loosened.

As shown in FIG. 14, the relay tube portion 132 moves from the connection tube portion 131 toward the female screw tube portion 133, in other words, the lower end opening of the connection tube portion 131 that is separated from each other in the axial direction of the rotary excavation tool 110. The taper tube (conical tube) shape gradually increases in diameter toward the upper end opening of the inner bit 120. The inner surface 132A of the relay cylinder portion 132 is a smooth conical curved surface, and the inclination angle θ of the inner surface 132A with respect to the axis of the rotary excavation tool 110 is, for example, about 40 degrees.

Next, the road excavation method using the rotary excavation tool 110 will be described. First, the drive source 198 is activated in a state where the rotary excavation tool 110 is separated from the pavement surface S1, and the rotary excavation tool 110 is rotated at a high speed. In this state, the handle 189 is operated to lower the movable base 192, and the rotary excavation tool 110 is pressed perpendicularly to the pavement surface S1. Then, the pavement surface S1 is excavated by the tip 122 provided at the lower end portion of the inner bit 120. When the rotary excavating tool 110 is further lowered, the annular groove gradually becomes deeper. When the predetermined depth is reached, the outer bit 140 in a rotating state is pressed against the pavement surface S1, and the annular bit excavated by the inner bit 120 is obtained. The outer periphery of the groove is excavated. That is, at first, excavation is performed only by the inner bit 120, and excavation is performed by both the inner bit 120 and the outer bit 140 when the inner bit 120 has been dug to a predetermined depth.

When excavating to a predetermined depth, the drive source 198 is stopped, and the rotary excavation tool 110 is pulled up by operating the handle 189. As a result, as shown in FIG. 9, the upper end portion is stepped and widened radially outward (in other words, the radially outer portion is shallower than the inner portion). M1 is formed at a time without changing the rotary excavation tool 110.

By the way, when the suction device 210 is connected to the rotary joint 196 of the road surface excavator 200 and the pavement surface S1 is excavated while the suction device 210 is operated, dust is generated from the excavation site of the inner bit 120 as shown in FIG. The air is sucked and discharged to the outside of the road surface excavator 200 through the inside of the main shaft 195. Inside the rotary excavation tool 110, the sucked dust is guided to the inner surface 132A having a conical curved surface of the relay cylinder part 132 and smoothly flows into the lower end opening of the connection cylinder part 131, and passes through the main shaft 195 to be a suction device. Recovered at 210. Further, by sucking the inside of the rotary excavation tool 110, the air outside the rotary excavation tool 110 causes the gap between the inner and outer side surfaces of the inner bit 120 and the annular groove and the adjacent tips at the lower end of the inner bit 120. It flows between 122 and 122 and flows into the inside of the rotary excavation tool 110. The

chips

122 and 122 are cooled by this air flow.

On the other hand, when the water supply device 220 is connected to the rotary joint 196 and the pavement surface S1 is excavated while the water supply device 220 is operated, as shown in FIG. Cooling water flows into the tool 110. At this time, a part of the cooling water travels along the inner surface of the main shaft 195, the extension tube portion 111 and the connection tube portion 131, and further travels along the inner surface 132 </ b> A of the relay tube portion 132 from the lower end opening of the connection tube portion 131. Then, it flows toward the outside in the radial direction by the centrifugal force generated by the rotation of the rotary excavation tool 110, and reaches the excavation site along the inner surface of the inner bit 120. Alternatively, it is scattered toward the excavation site on the way along the inner surface 132A of the relay cylinder part 132. The cooling water that has reached the excavation site enters between

adjacent chips

122, 122 of the inner bit 120 to cool the

chips

122, 122 and lubricate the excavation site.

According to this rotary excavation tool 110, when suction is performed through the connecting tube portion 131, the dust smoothly flows into the lower end opening of the connecting tube portion 131, so that the dust can be removed more efficiently than before. On the other hand, when the cooling water is poured into the rotary excavation tool 110 through the connection cylinder 131, the cooling water travels on the inner surface of the rotary excavation tool 110 or scatters and travels toward the excavation site. Can be cooled.

[Other Embodiments]
The present invention is not limited to the first and second embodiments described above. For example, the embodiments described below are also included in the technical scope of the present invention, and further deviate from the gist other than the following. Various modifications can be made without departing from the scope.

(1) In the said 1st Embodiment, although the linear reflection part 24 (linear reflection member 40) was provided in both the internal peripheral surface and the outer peripheral surface of the bulging circular arc part 20, an inner peripheral surface and an outer peripheral surface You may provide the linear reflection part 24 (linear reflection member 40) only in any one of these.

(2) In addition, the linear reflecting member 40 has a configuration in which a reflective tape is wound around a wire having a circular cross section, but the outer peripheral surface of the wire may be covered with a paint that reflects light.

(3) Further, a coating material that reflects light may be applied linearly to the bulging arc portion 20 to form the linear reflecting portion 24, or a reflective tape that reflects light may be applied to the bulging arc portion 20 in a linear manner. Thus, the linear reflecting portion 24 may be used. Furthermore, a plurality of reflective beads that reflect light may be arranged along the outer peripheral surface or inner peripheral surface of the bulging arc portion 20 to form the linear reflection portion 24.

(4) In the first embodiment, the linear light emitting unit 25 (linear light emitting member 50) is provided in addition to the linear reflective unit 24 (linear reflective member 40), but only the linear reflective unit 24 is provided. A configuration provided (a configuration not including the linear light emitting unit 25) may be used.

(5) Although the linear light emitting part 25 (linear light emitting member 50) is provided on both the inner peripheral surface and the outer peripheral surface of the bulging arc part 20, the inner peripheral surface and the outer periphery of the bulging arc part 20 are provided. You may provide the linear light emission part 25 (linear light emission member 50) only in any one of a surface.

(6) Further, a fluorescent light-emitting or light-storing luminescent coating material may be linearly applied to the bulging arc part 20 to form a linear light-emitting part 25, or the bulging arc part 20 may have fluorescence or phosphorescence. A light emitting tape may be attached in a linear shape to form the linear light emitting unit 25.

(7) In the first embodiment, only the linear reflecting portion 24 (linear reflecting member 40) is provided on one of the outer peripheral surface or the inner peripheral surface of the road marking ring 10, and the linear light emitting portion 25 (linear shape) is provided on the other. Only the light emitting member 50) may be provided.

(8) In the said 1st Embodiment, both the linear light emission part 25 (linear light emission member 50) which has fluorescence in the road marking ring 10, and the linear light emission part 25 (linear light emission member 50) which has luminous property are both. May be provided. Specifically, even if the linear light-emitting part 25 having fluorescence is provided on one of the outer peripheral surface and the inner peripheral surface of the bulging arc part 20, and the linear light-emitting part 25 having luminous properties is provided on the other. Good.

(9) In the first and second embodiments, the photocatalyst is compounded with the elastomer constituting the main body 11 of the road marking ring 10, but for example, the main body 11 of the road marking ring 10 has a color that is not easily noticeable (for example, , Black or gray) or in a place where sliminess is unlikely to occur, the photocatalyst may not be compounded.

(10) The embedded cylindrical portion 30 of the road marking ring 10 is preferably circular in terms of the construction of the annular groove portion M1, but the bulging arc portion 20 has a plan view in the circumferential direction of a circle (perfect circle). For example, it may be an ellipse, an ellipse, or a C-shape (horse-shoe shape) in which a part of the oval is cut out in the circumferential direction.

(11) The road marking ring 10 of the first and second embodiments is not limited to outdoor concrete or asphalt pavement surface S1, but also indoor floors (for example, floors of warehouses and factories) and exterior floors (for example, entrances). (Approach) may be installed.

(12) As in the first and second embodiments, the photocatalyst is compounded in the main body 11 of the road marking ring 10 and is linear on one or both of the outer peripheral surface and the inner peripheral surface of the bulging arc portion 20. If the road marking ring 10 provided with the light emitting unit 25 (linear light emitting member 50) is used by irradiating it with ultraviolet rays (preferably, black light) at night, the linear light emitting unit 25 is in the dark. In addition, the photocatalytic antifouling effect similar to that in the daytime can be exhibited at night.

(13) In the first embodiment, the linear light emitting member 50 that is a separate part from the main body 11 of the road marking ring 10 is fitted into the main body 11. However, an elastomer in which a fluorescent pigment or a phosphorescent pigment is compounded is used. The main body 11 of the road marking ring 10 may be formed by If it does in this way, the whole surface of the bulging circular arc part 20 can be made to shine, and the visibility at night will improve more.

(14) In the second embodiment, a plurality of plate-like reflecting members 45 (corresponding to “light reflecting portions” of the present invention) are provided on both the inner peripheral surface and the outer peripheral surface of the bulging arc portion 20. However, you may make it the structure which provided the several plate-shaped reflection member 45 only in any one of an internal peripheral surface and an outer peripheral surface.

(15) As a modified example of the rotary excavation tool 110, for example, as shown in FIG. 18, the diameter of the relay cylinder portion 132 of the tube 130 is expanded while bowing inward on the way from the connection cylinder portion 131 downward. It is good also as a trumpet shape. Further, as shown in FIG. 19, the relay cylinder part 132 may be formed in a dome cylinder shape whose diameter is increased while being bowed outwardly in the middle from the connection cylinder part 131.

(16) As a modified example of the rotary excavation tool 110, for example, as shown in FIG. 20, among the lower ends of the inner bit 120, the

tips

122, 122 adjacent to each other in the circumferential direction are opened downward ( A semicircular cutout 126 may be provided that is recessed upward. The inner bit 120 having the notch 126 can be used in a dry construction method in which excavation is performed while sucking dust, but has the following effects when used in a wet construction method. That is, even when the

tips

122 and 122 are worn down and become smaller, the cooling water enters the cutout portion 126 so that the tip 122 can be cooled and the excavation site lubricated. Thereby, the fall of excavation performance by abrasion of the chip |

tips

122 and 122 can be suppressed. Here, the notch 126 may be provided between all the

chips

122 and 122 as shown in FIG. 20 or may be provided only between some of the

chips

122 and 122.

Further, when the inner bit 120 having the notch 126 is dedicated to the wet method and the inner bit 120 not having the notch 126 is dedicated to the dry method, the inner bit 120 is determined depending on the presence or absence of the notch 126. Can be easily discriminated whether or not is dedicated to the wet method.

(17) On the inner wall surface of the inner bit 120 of the rotary excavation tool 110, a spiral protrusion or groove that descends toward the front in the rotational direction of the inner bit 120 may be provided. If it does in this way, with rotation of rotary excavation tool 110, dust can be sent out upwards (paving surface S1) between the inner surface of inner bit 120 and the wall surface of annular groove M1.

[Reference example]
21 and 22 show a road marking ring 100 as a reference example that is not included in the technical scope of the present invention but has the same effects as the present invention. The road marking ring 100 is obtained by removing the linear reflecting portion 24 (linear reflecting member 40) and the linear light emitting portion 25 (linear light emitting member 50) from the road marking ring 10 of the first embodiment. The other configuration is the same as the road marking ring 10 of the first embodiment. When the road marking ring 100 is installed by being fitted into the annular groove M1 of the pavement surface S1, the C-shaped bulge arc portion 20 in plan view protrudes above the pavement surface S1, and the bulge arc portion 20 Since the central part surrounded by is a recess, it does not slide like a conventional road-shaped road fence, but rather can be used for slip prevention. By the way, if the road marking ring 100 of the present reference example is colored in a clear color such as white, orange, and blue with a pigment, the visibility in the daytime is improved, but there is a problem that dirt is easily noticeable. On the other hand, when the road marking ring 100 is molded with an elastomer compounded with a photocatalyst, it is possible to prevent the occurrence of dirt and slime compared to the case where no photocatalyst is added, and the road marking ring is used over a long period of time. 100 can be kept clean. Specifically, the road marking ring 100 formed by compounding 0.5 to 5% by weight of titanium oxide with respect to soft vinyl chloride resin is more soiled than the road marking ring 100 not containing titanium oxide. It was difficult to adhere, and it was confirmed by a field test that the antifouling action increased with the increase in titanium oxide. Moreover, if the road marking ring 100 is formed with an elastomer compounded with a fluorescent pigment or a phosphorescent pigment, the entire surface of the bulging arc portion 20 can be illuminated, and visibility at night is further improved.

DESCRIPTION OF SYMBOLS 10 Road marking ring 11 Road marking ring main body 20 A bulging circular arc part 22 Notch part 24 Linear reflection part (light reflection part)
25 Light Emitting Unit 26 Reflecting Member Housing Groove 27 Light Emitting Member Housing 30 Embedded Tube 33 Wire Holding Groove 40 Linear Reflecting Member 45 Plate Reflecting Member (Light Reflecting Unit)
50 linear light emitting member L1 linear member M1 annular groove S1 pavement surface

Claims

An embedded cylinder portion embedded in an annular groove formed on the pavement surface;
It is integrally formed at the upper end of the buried cylinder part and extends in the circumferential direction of the buried cylinder part, and has a C-shape in plan view having a notch for draining in a part of the circumferential direction, above the pavement surface. A bulging arc portion that bulges into,
A linear reflector that extends in a curved manner along one or both of the outer peripheral surface inclined downward toward the radially outer side and the inner peripheral surface inclined downward toward the radially inner side of the bulging arc portion, or A road marking ring comprising a plurality of light reflecting portions arranged along the circumferential direction of one or both of the outer peripheral surface and the inner peripheral surface.
The road marking according to claim 1, wherein a linear reflecting member formed by covering a wire having a circular cross section with a reflecting material is fitted into a reflecting member receiving groove formed in the bulging arc portion to form the linear reflecting portion. ring.
The linear light emission part which was provided in one or both of the outer peripheral surface and inner peripheral surface of the said bulging circular arc part, and was equipped with the linear light emission part which has the fluorescence or the luminous property extended in parallel with the said linear reflection part. Road marking ring.
A linear light-emitting member that is formed into an arc shape containing a fluorescent agent or a phosphorescent light-emitting agent is fitted into a light-emitting member housing portion that is formed in parallel with the linear reflecting member in the bulging arc portion. The road marking ring according to claim 3, wherein the linear light emitting portion is used.
The road marking ring according to claim 4, wherein the linear light emitting member projects over the reflective member accommodation groove and overlaps the linear reflective member.
A circumferential surface of a linear member that is formed on one or both of the outer peripheral surface and the inner peripheral surface of the embedded cylindrical portion, extends in the axial direction of the embedded cylindrical portion, and opens downward, and is inserted from the lower end portion. The road marking ring according to any one of claims 1 to 5, further comprising a wire rod holding groove for holding a part of the wire rod in a state of protruding from the embedded cylinder portion.
The road marking ring according to claim 6, wherein the wire holding groove is configured to become shallower as it goes upward.
6. The linear reflection member is fixed to a main body of a road marking ring formed of a pigment, a photocatalyst, or an elastomer in which a pigment and a photocatalyst are compounded. 6. Road marking ring.
A method of using a road marking ring, wherein the road marking ring according to any one of claims 3 to 5 is irradiated with light containing ultraviolet rays.