KR102557104B1 - Road indicator and induction rod - Google Patents

Abstract

According to the present embodiments, the construction process is simple and rapid, the fixability is improved in various road environments, so the cost due to frequent replacement is not incurred, and the function continuity is excellent, which can greatly contribute to the prevention of safety accidents. Road signs and eye guide rods that can maintain adhesive strength and solid adhesion even at low temperatures are provided.

Description

Road marker and line guide rod {ROAD INDICATOR AND INDUCTION ROD}

The present embodiments relate to a road marker and an eye guide rod installed on a road to indicate a lane and induce safe driving by retroreflecting light from a vehicle headlight.

Road markers, lane markers, and line guide rods are installed on the road surface to achieve various road traffic regulation purposes, such as marking road boundaries, traffic safety zones, etc., or preventing illegal U-turns, and ensuring the safety of drivers and pedestrians. Reflectors or reflective sheets that reflect light are provided on road markers, lane markers, and line guide rods so that drivers can easily recognize and identify them.

Conventional road surface fixing methods such as road markers and gaze guide rods were bolted to the road using a metal structure holding method or anchor bolts. According to this prior art, for example, at least three or as many as six bolts are required to install one line of sight induction rod, so the construction process is cumbersome and takes a long time, and due to the nature of asphalt, there is a problem that the bolts are easily pulled out even in a small collision due to the contraction and expansion of the road due to the temperature and the significant decrease in fixing force due to the aging of the asphalt. In particular, there was also a problem in that the bolts that were separated when the structure was damaged were bounced by a collision or left on the road, causing secondary accidents.

In order to solve the above problems, for example, there has been an attempt to dig up the road and bury the road marker, but the road has to be drilled as much as the volume of the road marker, resulting in a lot of damage and dents due to frequent pressure on the road. In addition, road signs made of rubber or plastic, and especially line guide rods and lane separator products have low adhesive strength between road pavement materials made of asphalt and cement due to the nature of the material, shrinkage in low temperature environments such as winter, and the adhesive surface is not maintained. There was a problem that the product was easily separated from impact.

The present embodiments have been devised from the foregoing background, and the construction process is simple and rapid, and the fixability is improved even in various road environments, so the cost due to frequent replacement is not incurred, and the function continuity is excellent, so it can greatly contribute to the prevention of safety accidents. Road signs and gaze guide rods having a structure that can maintain strong adhesive strength with adhesives even at low temperatures can be provided.

According to the present embodiments, a road sign may be provided which includes an upper portion disposed on the surface of a road surface and provided with a reflector for reflecting light incident from a traveling vehicle, a lower portion of a hollow cylindrical shape inserted into the road surface, connected to the lower surface of the upper portion and opened downward, an annular insertion groove is drilled in the road surface, a portion of the road surface is inserted into the lower portion, the lower portion is seated in the insertion groove, and the lower portion seated in the insertion groove is fixed to the road surface by an adhesive.

In addition, according to the present embodiments, a hollow rod-shaped body having a reflector for reflecting light incident from a traveling vehicle on the upper side, and a bushing formed in a hollow cylindrical shape and coupled to the outer surface of the lower end of the body, and an annular insertion groove is perforated on the road surface, a part of the road surface is inserted into the body, and the lower end of the body coupled with the bushing is seated in the insertion groove, and the bushing and the lower end of the body are fixed to the road surface by adhesive in the insertion groove. this can be provided.

According to the present embodiments, the construction process is simple and rapid, the fixability is improved even in various road environments, so the cost due to frequent replacement is not incurred, and the function continuity is excellent, which can greatly contribute to the prevention of safety accidents. Even at low temperatures, it is possible to maintain strong adhesion with the adhesive.

1 is a perspective view of a road marker according to the present embodiments.
2 is a perspective view showing an example in which a road marker according to the present embodiments is installed on a road surface.
3 is a side view showing an example in which a road marker according to the present embodiments is installed on a road surface.
4 is a perspective view of a road marker according to the present embodiments.
5 is a side view showing an example in which a road marker according to the present embodiments is installed on a road surface.
6 is a plan view of a part of a road marker according to the present embodiments.
7 is a perspective view of a gaze induction rod according to the present embodiments.
Figure 8 is a perspective view of a part of the gaze induction rod according to the present embodiments.
Figure 9 is a side view of a part of the gaze induction rod according to the present embodiments.
Figure 10 is a perspective view of a part of the gaze induction rod according to the present embodiments.

DETAILED DESCRIPTION Some embodiments of the present disclosure are described in detail below with reference to exemplary drawings. In adding reference numerals to components of each drawing, the same components may have the same numerals as much as possible even if they are displayed on different drawings. In addition, in describing the present embodiments, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present technical idea, the detailed description may be omitted. When "comprises", "has", "consists of", etc. mentioned in this specification is used, other parts may be added unless "only" is used. In the case where a component is expressed in the singular, it may include the case of including the plural unless otherwise explicitly stated.

Also, terms such as first, second, A, B, (a), and (b) may be used in describing the components of the present disclosure. These terms are only used to distinguish the component from other components, and the nature, sequence, order, or number of the corresponding component is not limited by the term.

In the description of the positional relationship of components, when it is described that two or more components are "connected", "coupled" or "connected", the two or more components may be directly "connected", "coupled" or "connected", but it should be understood that two or more components and other components may be further "interposed" to be "connected", "coupled" or "connected". Here, other components may be included in one or more of two or more components that are “connected”, “coupled” or “connected” to each other.

In the description of the temporal flow relationship related to components, operating methods, production methods, etc., for example, “after”, “after”, “after”, “before”, etc. In the case where a temporal or chronological relationship is described, it may include non-continuous cases unless “immediately” or “directly” is used.

On the other hand, when a numerical value or corresponding information (eg, level, etc.) for a component is mentioned, even if there is no separate explicit description, the numerical value or its corresponding information is various factors (eg, process factors, internal or external shocks, noise, etc.). It can be interpreted as including the error range that may occur.

1 is a perspective view of a road marker according to present embodiments, FIG. 2 is a perspective view showing an example in which a road marker according to present embodiments is installed on a road surface, FIG. 3 is a side view showing an example in which a road marker according to present embodiments is installed on a road surface, FIG. 4 is a perspective view of a road marker according to present embodiments, FIG. Figure 7 is a perspective view of a part of the line guide rod according to the present embodiments, Figure 8 is a perspective view of a part of the line guide rod according to the present embodiments, Figure 9 is a side view of a part of the line guide rod according to the present embodiments, Figure 10 is a perspective view of a part of the line guide rod according to the present embodiments.

1 to 6, the road marker 100 according to the present embodiments includes an upper portion 110 disposed on the surface of the road surface R and provided with a reflector 111 for reflecting light incident from a traveling vehicle, a hollow cylindrical lower portion 120 inserted into the road surface R, connected to the lower surface of the upper portion 110 and opened downward, and an annular insertion groove H in the road surface R This is perforated and a part of the road surface R is inserted into the lower part 120, the lower part 120 is seated in the insertion groove H, and the lower part 120 seated in the insertion groove H is fixed to the road surface R by an adhesive.

Referring to FIGS. 1 to 3 , the road marker 100 according to the present embodiments includes an upper portion 110 provided with a reflector 111 and a lower portion 120 inserted into the road surface R. In the present embodiments, the shape of the upper part 110 is not limited, and for example, as shown in FIG. 1 (A), it is formed in a substantially hexagonal shape and provided with reflectors on both sides, or in FIG.

The road marker 100 according to the present embodiments is fixed to the road surface R as the lower portion 120 is inserted into the insertion groove H formed in the road surface R and an adhesive is applied. The insertion groove H is formed in a shape corresponding to the lower part 120 so that the lower part 120 can be inserted therein. The lower part 120 is formed extending downward from the lower surface of the upper part 110, and is formed in a hollow cylindrical shape opening downward. Therefore, the insertion groove (H) is formed in an annular shape, and has a depth equal to or greater than the vertical length of the lower portion 120. For example, after drilling an insertion groove (H) in the road surface (R), applying an adhesive, and then inserting the lower part 120 into the insertion groove (H), the road sign 100 according to the present embodiments can be fixed and installed on the road surface (R). The adhesive may be an epoxy resin or silicone. By forming the insertion groove H into an annular shape, when the lower part 120 is inserted into the insertion groove H, the portion inside the insertion groove H of the road surface R is inserted into the lower part 120. Therefore, both the inner and outer surfaces of the lower part 120 contact and adhere to the inner surface of the insertion groove H by means of an adhesive to improve adhesion. In addition, since both the inner and outer surfaces of the lower part 120 are in contact with the inner surface of the insertion groove H, contact between the lower part 120 and the road is maintained even if it shrinks in a low-temperature environment such as in winter, so the adhesive strength is not reduced.

That is, according to the present embodiments, the bolting structure is not adopted compared to the conventional method of installing road markers using anchor bolts, and less damage to the road occurs compared to the conventional method of embedding road markers in the road. Therefore, the construction process becomes simpler and faster, durability is improved, and secondary accidents are prevented.

In addition, since the lower portion 120 is formed in a hollow cylindrical shape and the insertion groove H is formed in an annular shape accordingly, even if the road marker 100 according to the present embodiments is fixed to the road surface R with an adhesive, when an impact occurs, the road marker 100 can be rotated while being inserted into the insertion groove H. When the road marker 100 rotates, the direction of the reflector 111 changes, causing a problem that cannot be recognized by the driver. Therefore, in order to prevent rotation of the road marker 100, a protruding portion 112 protruding downward and inserted into the road surface R may be formed on the lower surface of the upper portion 110. In addition, in order to prevent rotation of the road marker 100, a slit 121 may be formed in the lower portion 120 to cut the inner and outer surfaces of the lower portion 120.

According to the present embodiments, the lower surface of the upper portion 110 may be wider than the lower portion 120 in a horizontal direction. That is, the lower part 120 is formed by extending downward from the lower surface of the upper part 110, and the lower surface of the upper part 110 where the lower part 120 is located may have a larger area than that of the lower part 120. Therefore, when the lower part 120 is inserted into the insertion groove H, the lower surface of the upper part 110 is supported on the road surface R.

According to the present embodiments, a protrusion 112 may be formed on the lower surface of the upper portion 110 to protrude downward and be inserted into the road surface R. That is, an insertion groove H into which the lower part 120 is inserted and a hole G into which the protruding part 112 is inserted are further formed on the road surface R, so that the lower part 120 and the protruding part 112 can be inserted into the insertion groove H and the hole G, respectively. Therefore, the road marker 100 according to the present embodiments can be fixed to the road surface R by drilling the insertion groove H and hole G in the road surface R, applying an adhesive to the insertion groove H and/or hole G, and then inserting the lower portion 120 and the protrusion 112 into the insertion groove H and hole G, respectively.

These protrusions 112 may be spaced apart from each other and may be provided in plurality, and an embodiment in which two protrusions 112 are provided is shown in the drawing. When a plurality of protrusions 112 are provided, holes G are formed at positions corresponding to the protrusions 112 on the road surface R. As the lower surface of the upper part 110 is formed wider in the horizontal direction than the lower part 120, the protruding part 112 can be located outside the lower part 120 on the lower surface of the upper part 110. Therefore, the road sign 100 according to the present embodiments is prevented from rotating on the road surface R. As shown in the figure, the protrusions 112 may be provided as a pair on opposite sides with the lower portion 120 interposed therebetween, and accordingly, the holes G may also be provided with a pair on opposite sides with the insertion groove H interposed therebetween.

In addition, according to the present embodiments, a slit 121 cutting the inner and outer surfaces of the lower part 120 may be formed. By forming the slit 121, when the lower part 120 is inserted into the insertion groove H, an empty space is formed therein, and therefore, the adhesive applied to the insertion groove H fills the empty space, and the adhesive strength is improved. Rotation of the road marker 100 is prevented. These slits 121 may be formed to the lower end of the lower part 120 as shown in the drawing.

Referring to FIGS. 4 to 6, the road marker 100 according to the present embodiments is formed hollow to be coupled to the outer surface of the lower part 120, and is inserted into the insertion groove H together with the lower part 120. It may further include a bushing 400. The bushing 400 may be formed of, for example, a rubber material. The bushing 400 is formed in a shape corresponding to the lower portion 120 so as to be coupled to the outer surface of the lower portion 120, and may be formed in a hollow cylindrical shape as shown in the drawing. The bushing 400 is coupled to the lower part 120 and inserted into the insertion groove H together, and the outer surface of the bushing 400 and the inner surface of the lower part 120 are in contact with the inner surface of the insertion groove H. It can be coupled by an adhesive.

A plurality of protrusions 410 formed long in the vertical direction may be provided on the outer surface of the bushing 400 along the circumferential direction. That is, as shown in the drawing, the plurality of protrusions 410 may be disposed adjacent to each other, and a groove may be formed long in the vertical direction between the protrusions 410 . Therefore, when the lower portion 120 and the bushing 400 are inserted into the insertion groove H where the adhesive is applied, the adhesive is filled in the space formed by the groove, so that the adhesive strength can be further improved.

In addition, the bushing 400 may be inserted into the insertion groove H in a compressed state. That is, the width of the insertion groove (H) is formed to be narrower than the thickness of the lower part 120 and the bushing 400, and the bushing 400 is compressed and inserted into the insertion groove (H), thereby expanding the bushing 400. Adhesion with the road can be improved by the force. In particular, even if shrinkage occurs in a low-temperature environment such as in winter, the contact with the road is maintained by the expansion force of the bushing 400, so the adhesive strength is not reduced.

In addition, the protrusion 410 may include a first surface 410a facing one side in the circumferential direction and a second surface 410b facing the other side in the circumferential direction. The first surface 410a and the second surface 410b are formed to have a predetermined inclination in the circumferential direction from the outer circumferential surface of the bushing 400. According to one embodiment, the first surface 410a is the second surface (410b). It may be formed with a gentler slope than (see FIG. 6). Therefore, as described above, when the bushing 400 is inserted into the insertion groove H in a compressed state, the protrusion 410 is greatly compressed. As the first surface 410a is formed with a gentler slope than the second surface 410b, each protrusion 410 is inclined in a certain direction and compressed. For example, the protrusion 410 may be inclined and compressed in a circumferential direction from the first surface 410a to the second surface 410b. Therefore, since the adhesive force between the outer surface of the bushing 400 and the road by the adhesive becomes constant along the circumferential direction, the impact from the outside is uniformly distributed, thereby reducing the probability of damage.

In addition, the protrusion 410 may further include a third surface 410c positioned between the first surface 410a and the second surface 410b. This third surface 410c may be formed as a plane. That is, the third surface 410c may be formed without curvature. Therefore, when the bushing 400 is inserted into the insertion groove H formed in an annular shape, an empty space is formed on the third surface 410c and the inner surface of the insertion groove H, and the empty space is filled with adhesive. The adhesive strength can be further improved.

On the other hand, referring to FIG. 7, the gaze induction rod 700 according to the present embodiments includes a hollow bar-shaped body 710 provided with a reflector 711 for reflecting light incident from a traveling vehicle on the upper side, a bushing 730 formed in a hollow cylindrical shape and coupled to the outer surface of the lower end 720 of the body 710, and an annular insertion groove H is perforated on the road surface to form an inner portion of the body 710. A part of the road surface R is inserted to the side, and the lower end 720 of the body 710 to which the bushing 730 is coupled is seated in the insertion groove H, and the bushing 730 seated in the insertion groove H and the lower end 720 of the body 710 are fixed to the road surface R by an adhesive. That is, in general, the urethane-based material, the eye guide rod, has high elasticity in terms of material characteristics, but it is not easy to bond with the road pavement material by means of an adhesive. A detailed description of what is in common with the above-described road marker 100 will be omitted and a brief description will be given focusing on the differences.

The body 710 is vertically long and may be formed in a hollow rod shape with an empty interior. A reflector 711 is provided on the upper side of the body 710 to reflect light so that the driver can recognize it. The upper side of the body 710 where the reflector 711 is provided may have a substantially oval cross section, and the lower side of the body 710 may have a substantially circular cross section.

A bushing 730 is coupled to the outer surface of the lower end 720, and the lower end 720 to which the bushing 730 is coupled is inserted into the insertion groove H and fixed to the road surface R by an adhesive. The bushing 730 may be formed of a rubber material, and has protrusions formed long in the vertical direction on an outer circumferential surface thereof, so that adhesion by an adhesive may be improved. Accordingly, the adhesive may be filled into the groove formed between the plurality of protrusions, and the adhesive strength may be further improved. Such a bushing 730 can be inserted into the insertion groove H in a compressed state, and thus the adhesive force is further improved by the expansion force of the bushing 730 and the decrease in adhesive force due to shrinkage in a low temperature environment is prevented.

The protrusion formed on the outer surface of the bushing 730 may include a first surface facing one side in the circumferential direction and a second surface facing the other side in the circumferential direction, and the first surface may be formed with a gentler slope than the second surface. Therefore, when the bushing 730 is compressed, all of the plurality of protrusions are inclined in a certain direction and compressed, and the impact from the outside is uniformly distributed, thereby reducing the probability of damage.

In addition, the protrusion of the bushing 730 may further include a third surface positioned between the first surface and the second surface, and the third surface may be formed as a plane. Therefore, the adhesive is filled in the empty space formed between the inner surface of the annular insertion groove H and the third surface of the plane, and the adhesive strength can be further improved.

Meanwhile, a support part 721 supported on an upper surface of the bushing 730 may protrude from the outer circumferential surface of the body 710 . That is, the support portion 721 is located above the lower portion 720 and serves as a stopper for the bushing 730 coupled to the lower portion 720 . The support portion 721 may be formed in an annular shape as shown in the drawing, and may be formed to be tapered so that the thickness becomes thinner toward the outside.

Referring to FIGS. 8 to 9 , the body 710 and the bushing 730 may be coupled by a coupling member 800 . That is, the gaze induction rod 700 according to the present embodiments may further include a coupling member 800 that penetrates the upper surface of the support portion 721 and the bushing 730 and couples the body 710 and the bushing 730. The coupling member 800 may be a bolt as shown in FIG. 8 or may be a bolt and nut as shown in FIG. 9 . A plurality of coupling members 800 may be provided.

Since the body 710 and the bushing 730 are coupled by the coupling member 800, separation of the body 710 and the bushing 730 when an impact such as a vehicle collision is applied is prevented. That is, in order to install the gaze induction rod 700 according to the present embodiments, an insertion groove (H) is drilled in the road surface (R), and the core (C) is left inside as the insertion groove (H) is formed in an annular shape. Therefore, the inner surface of the body 710 is in contact with the outer surface of the core (C), and the outer surface of the body 710 is coupled to the road paving material by the bushing 730 and the contact agent coupled to the body. The hardness of the core (C) is often reduced due to vibrations, contraction and expansion of roads due to temperature, deterioration of asphalt concrete, etc., and is easily broken by impact. In this way, when the core (C) is broken, the body 710 bonded to the core (C) is not fixed to the core (C) and is separated from the bushing 730 and pulled out of the road surface (R). By fixing the body 710 and the bushing 730 with the coupling member 800, the problem of the body 710 being separated from the bushing 730 can be prevented. The body 710 and the bushing 730 may be coupled to the coupling member 800 after being inserted into the insertion groove (H), or may be inserted into the insertion groove (H) after being coupled to the coupling member 800.

As shown in FIG. 9 , a wing portion 731 may be provided on the bushing 730 to facilitate coupling with the body 710 by the coupling member 800 . That is, the bushing 730 is provided with a wing portion 731 extending outwardly and supported on the lower surface of the support portion 721, and the coupling member 800 may be coupled to the support portion 721 and the wing portion 731. When the bushing 730 is inserted into the insertion groove (H), the wing portion 731 may be positioned on the road surface (R) without being inserted into the insertion groove (H).

Referring to FIG. 10, one of the outer surface of the lower end 720 of the body 710 and the inner surface of the bushing 730 is provided with a rail 732 that is recessed and disposed vertically, and the other guide 722 inserted into the rail 732 may protrude. In the drawing, an embodiment in which the rail 732 is provided on the bushing 730 and the guide 722 is provided on the lower end 720 is shown. The relative position of the bushing 730 and the body 710 can be determined by the rail 732 and the guide 722 . That is, when the rail 732 and the guide 722 are coupled without being engaged, the body 710 may be rotated so that the rail 732 and the guide 722 are engaged.

In addition, since the rail 732 and the guide 722 are formed, coupling and separation between the body 710 and the bushing 730 become easier. After installing the line guide rod on the road surface R, there are cases in which it needs to be removed for maintenance, relocation, etc., but due to the rail 732 and the guide 722, it is firmly attached to the inside of the insertion groove H.

Although the above-described coupling member 800, rail 732 and guide 722 are shown in the drawing only for the gaze induction rod 700 according to the present embodiments, it can be applied to the road sign soldier 100 according to the present embodiments as well. That is, the upper part 110 and the bushing 400 may be coupled by a coupling member, and the bushing 400 may be provided with wings extending outwardly. In addition, a rail 732 may be provided on one of the outer surface of the lower part 120 and the inner surface of the bushing 400 and a guide 722 may be provided on the other.

According to the road marker and the gaze induction rod having the above shapes, the process is simple and quick, the durability is improved, secondary accidents can be prevented, and a strong coupling can be maintained even at low temperatures.

The above description is merely illustrative of the technical idea of the present disclosure, and various modifications and variations can be made to those skilled in the art without departing from the essential characteristics of the technical idea. In addition, since the present embodiments are not intended to limit the technical idea of the present disclosure, but to explain, the scope of the present technical idea is not limited by these embodiments. The scope of protection of the present disclosure should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of rights of the present disclosure.

100: road marker 110: upper part
111: reflection part 112: protrusion part
120: lower part 121: slit
400: bushing 410: protrusion
410a: first surface 410b: second surface
410c: third side 700: gaze induction rod
710: body 711: reflector
720: lower part 721: support part
722: guide 730: bushing
731: wing part 732: rail
H: insertion groove G: hole
R: road surface C: core

Claims (19)

an upper portion provided with a reflector located on the surface of the road surface to reflect light incident from the traveling vehicle;
a hollow cylindrical lower part inserted into the road surface, connected to the lower surface of the upper part, and opened downward;
Including,
An annular insertion groove is perforated in the road surface, a part of the road surface is inserted into the lower portion, the lower portion is seated in the insertion groove, and the lower portion seated in the insertion groove is fixed to the road surface by an adhesive,
It is formed hollow to be coupled to the outer surface of the lower portion, and further includes a bushing inserted into the insertion groove together with the lower portion,
A plurality of protrusions formed long in the vertical direction are provided on the outer surface of the bushing along the circumferential direction,
The bushing is inserted into the insertion groove in a compressed state,
The protrusion includes a first surface facing one side in the circumferential direction and a second surface facing the other side in the circumferential direction,
The road signage, characterized in that the first surface is formed with a gentler slope than the second surface. According to claim 1,
The lower surface of the upper part is formed wider in a horizontal direction than the lower part. According to claim 1,
A road sign bottle, characterized in that a protrusion protruding downward and inserted into the road surface is formed on the lower surface of the upper part. According to claim 3,
The protrusions are spaced apart from each other and are provided in plurality. According to claim 3,
The protruding portion is a road marker, characterized in that located outside the lower part on the lower surface. According to claim 3,
The road marker, characterized in that the protrusions are provided as a pair on opposite sides with the lower part interposed therebetween. According to claim 1,
A road sign bottle, characterized in that a slit is formed in the lower part to cut the inner and outer surfaces of the lower part. delete delete delete delete delete According to claim 1,
The protrusion part further comprises a third surface positioned between the first surface and the second surface. According to claim 13,
The road sign bottle, characterized in that the third surface is formed as a plane. A hollow bar-shaped body having a reflector for reflecting light incident from a traveling vehicle on an upper side thereof;
a bushing formed in a hollow cylindrical shape and coupled to an outer surface of the lower end of the body;
Including,
An annular insertion groove is perforated in the road surface, and a part of the road surface is inserted into the body, and the lower end of the body to which the bushing is coupled is seated in the insertion groove, and the bushing and the lower end of the body seated in the insertion groove are fixed to the road surface by an adhesive,
A plurality of protrusions formed long in the vertical direction are provided on the outer surface of the bushing along the circumferential direction,
The bushing is inserted into the insertion groove in a compressed state,
The protrusion includes a first surface facing one side in the circumferential direction and a second surface facing the other side in the circumferential direction,
The first surface is a gaze guide rod, characterized in that formed with a gentler slope than the second surface. According to claim 15,
One of the outer surface of the lower end of the body and the inner surface of the bushing is recessed and provided with a rail disposed in the vertical direction, and the other guide rod, characterized in that the guide inserted into the rail protrudes. According to claim 15,
Gaze induction rod, characterized in that the outer peripheral surface of the body is formed with a protruding support supported on the upper surface of the bushing. 18. The method of claim 17,
Gaze induction rod characterized in that it further comprises a coupling member that penetrates the upper surface of the support and the bushing and couples the body and the bushing. According to claim 18,
The bushing extends outwardly and is provided with a wing portion supported on a lower surface of the support portion, and the coupling member is coupled to the support portion and the wing portion, characterized in that the guide rod.

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