WO2012161499A2

WO2012161499A2 - Reflector for marking a road surface and method for manufacturing same

Info

Publication number: WO2012161499A2
Application number: PCT/KR2012/004034
Authority: WO
Inventors: 이동복
Original assignee: (주)에스시아이
Priority date: 2011-05-24
Filing date: 2012-05-22
Publication date: 2012-11-29
Also published as: WO2012161499A3; KR20120130909A; CN103562462A; KR101281153B1; US20140144370A1

Abstract

The present invention relates to a reflector for marking a road surface, characterized in that a base is attached to a road installation or to a road surface; a light-transmitting body made of a transparent material is mounted on the base; and a reflection layer is formed at a contact surface where the light-transmitting body and the base contact each other, so as to reflect the light incident upon the light-transmitting body. The reflector for marking a road surface according to the present invention may be attached to a center line or to a lane line so as to complete construction, and may be readily attached to the center line or the lane line without requiring the installation of a separate strut at a guard rail or at a road installation, thereby enabling easy work. Further, the reflector for marking a road surface according to the present invention is structured such that the reflection layer formed on the light-transmitting body is concealed towards the inside of the base and an exposed surface of the light-transmitting body is exposed from the outside of the base, thereby increasing reflection efficiency.

Description

Road sign reflector and manufacturing method thereof

The present invention relates to a road marking reflector, and more particularly, to a road marking reflector attached to a road and a road facility to reflect light emitted from the vehicle to the vehicle to display a destination or lane of a road.

In general, road signs of various roads have signs indicating the destination of the road and its direction, and road bottles or luminous bodies reflected by the headlights of driving vehicles on the center line, lane, curved road or guide rail of the road. Alternatively, road signs using reflective paper or the like are provided.

The road signs such as road bottles and luminous bodies reflect the light from the headlights of the vehicle at night, which enables the driver of the vehicle to identify the center line or lane position, as well as informing the direction of the road. It is made by using a retroreflective body having a retroreflective property.

The retroreflector refers to an object that causes the light emitted from the light source to be reflected back to the original light source side. Typical materials for such reflectors include glass beads.

Korean Unexamined Patent Publication No. 10-2007-0102770 discloses a glass bead for retroreflective glass and a method of manufacturing the same. The retroreflective glass beads include the first step of forming a resin layer on the upper surface of the polyester polymer film, and evenly coat the glass beads by a mechanical method through a press roller and a support roller located above and below the transparent polymer film. And a second step of seating only half of the diameter of the glass bead in the coated resin layers, and to increase the retroreflective brightness on the glass beads in which the half is seated and the top half is exposed. It is prepared through a third step of depositing and a fourth step of leaving the glass bead from which the aluminum vacuum deposition film is formed, only half of the glass bead separation roller is located through the glass bead separation roller located above the polymer film.

However, such glass beads are randomly scattered on the paint layer when constructing the lanes, and are randomly sprayed on the binder holding the glass beads when manufacturing road bottles or signs. The glass beads fixed to the paint layer or binder in the state exposed to the air and the glass beads fixed to expose the exposed surface to the inside of the paint layer or binder, that is, the vacuum deposition film are exposed to the outside of the paint layer or binder are mixed. There is a problem that the reflection efficiency of the lane is reduced.

The present invention is to solve the above problems, one side of the glass bead with a vacuum deposition film formed over the entire area of the reflector for road markings to be buried inside the paint layer or binder, the other side of the glass bead exposed surface is By arranging to be exposed to the outside air, it is possible to increase the amount of light incident on the reflector for road markings, and thus an object of the present invention is to provide a reflector for road markings with improved retroreflective efficiency.

In addition, the present invention can be attached to the lane during the construction of the center line and lanes of the road, and can be attached immediately to the guardrail and the road facilities of the road without the need to install a separate road sign reflector for easy installation There is another purpose to provide.

Road marking reflector according to the present invention for achieving the above object is a base attached to a road facility or road surface; A light transmitting body mounted on the base and formed of a transparent material; And a reflective layer formed on a contact surface between the light projecting member and the base to reflect light incident on the light projecting body.

The base has a flat lower portion and an upper portion formed with a convex dome structure, and the light transmitting body is partially inserted into the base such that a portion of the outer circumferential surface is exposed to the upper surface of the base.

The base has a flat lower portion and an upper portion on which a plurality of inclined surfaces are formed, and the light transmitting body is partially inserted into an upper portion of the base such that a portion of the outer circumferential surface is exposed to the upper surface of the base.

Method for manufacturing a road marking reflector for achieving the above object comprises the steps of preparing a mold provided with a cavity therein; An arranging step of arranging a light-transmitter formed of a transparent material and having a reflective layer formed in the cavity so that the reflective layer is spaced apart from an inner circumferential surface of the cavity; An injection step of forming a base by injecting a resin into the cavity; And separating the base from the cavity after the base is cured.

The preparing step may form a semi-spherical inlet groove on the inner circumferential surface of the cavity, and the arrangement step may be arranged so that the exposed surface of the light-transmitter other than the reflective layer is inserted into the inlet groove.

An adhesive layer is formed between the light transmitting body and the reflective layer.

Method for manufacturing a road marking reflector for achieving the above object comprises the steps of preparing a mold provided with a cavity therein; Arranging a light-transmitter formed of a transparent material in the cavity; A reflective layer forming step of forming a reflective layer on a portion of the surface of the light projecting body opposite to the inner circumferential surface of the cavity; An injection step of forming a base by injecting a resin into the cavity; And separating the base from the cavity after the base is cured.

The preparation step is to apply a binder on the inner circumferential surface of the cavity, the arrangement step is sprayed so that a portion of the outer circumferential surface of the light-transmitter is embedded in the binder, the reflective layer forming step is a reflection layer on the exposed surface exposed to the outside of the binder It is characterized by forming.

The preparing step forms a semi-spherical inlet groove on the inner circumferential surface of the cavity, the arranging step inserts the light-transmitter into the inlet groove, and the reflective layer forming step forms a reflective layer on the exposed surface exposed by the cavity. It is characterized by.

The reflective layer forming step is characterized by forming an reflective layer after applying the adhesive on the surface of the light transmitting body.

According to the road sign reflector according to the present invention, the construction can be completed by attaching to the center line and lanes, and can be immediately attached to the guardrail and the road facility of the road without having to install a separate post, etc. .

In addition, in the reflector for road marking according to the present invention, the reflective layer formed on the light-transmitter is buried inside the base, and the exposed surface of the light-transmitter is exposed to the outside of the base, thereby improving reflection efficiency.

1 is an enlarged perspective view of a reflector for a road marking according to a first embodiment of the present invention;

FIG. 2 is an enlarged perspective view of the road marking reflector shown in FIG. 1; FIG.

3 is a cross-sectional view of a reflector for a road sign according to a second embodiment of the present invention.

4 is a perspective view of a reflector for a road sign according to a third embodiment of the present invention.

5 is a cross-sectional view of FIG. 4.

6 is a cross-sectional view of a reflector for a road marking according to a fourth embodiment of the present invention.

7 is a cross-sectional view of a reflector for a road marking according to a fifth embodiment of the present invention.

8 is a process chart showing a manufacturing method of a reflector for a road sign according to a first embodiment of the present invention.

9 is a process chart showing a manufacturing method of a reflector for a road sign according to a second embodiment of the present invention.

10 is a process chart showing a manufacturing method of a reflector for a road marking according to a third embodiment of the present invention.

11 is a process chart showing a manufacturing method of a reflector for a road sign according to a fourth embodiment of the present invention.

12 is a process chart showing the manufacturing method of the reflector for road markings according to the fifth embodiment of the present invention.

13 is a process chart showing a manufacturing method of a reflector for a road marking according to a sixth embodiment of the present invention;

Hereinafter, with reference to the accompanying drawings, it will be described in detail a reflector for a road sign according to an embodiment of the present invention. 1 to 2 illustrate a reflector for a road sign according to a first embodiment of the present invention.

1 to 2, the road marking reflector 1 is installed at the center line 2 or the guard rail 3 of the road, and reflects light emitted from the headlights of the vehicle 4 in the direction of the vehicle. The base 10, the light transmissive body 21, and the reflective layer 30 are provided by informing the destination and the traveling direction of the road.

Base 10 has a flat bottom and a dome structure at the top. An adhesive part 10a is formed on the bottom of the base 10 so as to be attached to the center line 2, the guard rail 3, the sign of the road, and the like. The adhesive part 10a may be formed by applying an adhesive to the bottom of the base 10, or alternatively, may combine a double-sided tape provided with an adhesive layer.

The base 10 is embedded with a part of the light transmitting body 21 for retroreflecting light emitted from the vehicle 4 to the vehicle. The light transmitting body 21 is made of glass or transparent plastic and has a spherical shape.

The reflective layer 30 is formed between the base 10 and the light projecting member 10, that is, the base 10 and the light projecting member 21 so as to reflect light emitted from the vehicle 4 and incident on the light projecting body 21. It is formed in the contact surface which contacts. The reflective layer 30 is formed by depositing aluminum on a portion of the outer circumferential surface of the light transmitting body 21.

Meanwhile, FIG. 3 illustrates a road marking reflector 2 according to the second embodiment of the present invention. Referring to FIG. 3, the base 11 has an inclined surface that is flattened at an upper side and a lower side, and tapered to a narrow side toward the upper side. In the light transmitting body 21, the reflective layer 30 is buried in the upper portion of the base 11 and in the inclined surface.

The base 11 is exposed to the upper part of the base 11 and the upper part of the base to prevent the light emitting body 21 from being separated from the base 12 or contaminated from contaminants such as dust and dirt. A protective layer 17 made of a transparent material is provided to surround the exposed surface of the base), and an adhesive part 11a is provided at the bottom of the base 11 to be attached to a road, a guard rail, a sign, and the like.

4 and 5 illustrate a reflector 3 for road marking according to a third embodiment of the present invention. 4 and 5, the base 12 has an inclined surface that is flattened at an upper portion and a lower portion thereof and tapered toward an upper portion thereof, and an adhesive portion 12a is formed at a bottom surface thereof.

1 to 3, the light-transmitting member 22 has a plurality of incidence surfaces 22a that are flat on the bottom and adjacent to each other on the outer circumferential surface, and have a first groove 22b having a shape corresponding to the outer shape therein. ) Is pulled in from the bottom.

A reflective layer 30 formed of aluminum is formed on the inner circumferential surface of the first groove 22b, and the first groove 22b blocks air from contacting the reflective layer 30 to prevent corrosion of the reflective layer 30. The blocking layer 18 is filled. Although not shown in the drawings, a protective layer 17 as shown in FIG. 3 may be further provided on the base 12.

6 shows a road marking reflector 4 according to a fourth embodiment of the present invention. Referring to FIG. 6, the base 12 has an inclined surface where the top and bottom are flat and tapered toward the top, and the adhesive part 12a is formed on the bottom.

The light-transmitter 23 has a convex dome-shaped structure at the top and a flat portion at the bottom thereof, and a semi-spherical second groove 23a having a diameter smaller than the diameter of the light-transmitter 23 is formed from the bottom thereof. On the inner circumferential surface of the second groove 23a and the bottom surface of the light transmissive body 23, a reflective layer 30 on which aluminum is deposited is formed so as to reflect light transmitted through the light transmissive body 23.

The second groove 23a is filled with a blocking layer 18 that blocks air from contacting the reflective layer 30, and the light-transmitting member 23 is separated from the base 12 in the upper portion of the base 12, or in a vehicle. The protective layer 17 made of a transparent material is formed so as to prevent damage by the dust and to prevent contamination from dirt, dust, and the like.

7 shows a road marking reflector 5 according to a fifth embodiment of the present invention. Referring to FIG. 7, the road marking reflector 5 includes a base 13, a light projector 21, and a reflective layer 30.

The base 13 has a flat bottom portion, and the top portion is formed adjacent to a plurality of inclined surfaces 13b having normals in different directions, and an adhesive portion 13a is formed on the bottom surface to be attached to the road surface. Each of the inclined surfaces 13b has a structure in which a plurality of surfaces having inclined angles corresponding to each other with respect to the bottom surface of the base 13 are arranged in the direction in which they cross each other to form floors and valleys.

The light-transmitting body 21 is made of glass and has a spherical shape, and a reflective layer 30 formed of aluminum is formed on the outer circumferential surface thereof. A portion where the reflective layer 30 is not formed is exposed to the outside of the inclined surface 13b, and a portion where the reflective layer 30 is formed is buried inside the inclined surface 13b, that is, inside the base. The entire transparent surface of the light transmitting body 21 may be embedded in the base 13. In this case, the base 13 is preferably made of a transparent material so that light is incident on the light transmitting body (21).

The light-transmitting body 21 may be buried only on the inclined surface 13a which is formed to be inclined downward in the direction in which the vehicle is located from each floor formed by the inclined surfaces 13b, or alternatively, may be buried in the entire inclined surface 13b.

The upper part of the base 13 is provided with a protective layer 17 made of a transparent material to prevent the light-transmitter 21 from being separated from the base 13 or damaged by a vehicle, and to prevent contamination from dirt or dust. have.

Hereinafter, a method of manufacturing a reflector for a road sign according to the present invention will be described in detail with reference to the accompanying drawings.

8 shows a method of manufacturing a reflector for a road sign according to a first embodiment of the present invention. Referring to FIG. 8, the manufacturing method of the reflector 6 for road marking includes a preparation step, an arrangement step, an injection step, and a separation step.

In the preparing step, the mold 41 having the semi-spherical cavity 41a is prepared. The mold 41 is open at the top so that the resin 41, which will be described later, can be filled into the cavity 41a. .

In the arranging step, the light-transmitting body 21 formed of a transparent material and having a reflective layer formed on a part thereof is arranged on the inner circumferential surface of the cavity, but the reflective layer is arranged so as to be spaced apart from the inner circumferential surface of the cavity. Arrange in contact with the inner circumferential surface of the.

The injection step injects the resin 50 into the cavity 41a to form the base 10 supporting the light transmitting bodies 21. Here, the light-transmitting body 21 has a spherical shape and is made of glass.

In the method of forming the reflective layer 30 on the light-transmitting body 21, the light-transmitting body 21 formed of a transparent material is evenly sprayed onto the sheet on which the adhesive layer is formed, and then a part of the light-transmitting body 21 is buried in the adhesive layer using a roller. Pressurize Thereafter, the outer circumferential surface of the light-transmitter 21 exposed to the outside of the adhesive layer is deposited with aluminum to form the reflective layer 30, and the light-transmitter is separated from the sheet. As described above, the reflective layer may be applied to the aluminum deposition method, or may be formed by applying an aluminum paint containing a powder of aluminum as a pigment in an oily varnish.

In the separation step, after the resin 50 is cured, the adhesive sheet 60 is attached and separated from the mold 41. In the road marking reflector 5 formed through this process, the light-transmitter 21 is completely embedded in the resin 50, and the reflective layer 30 faces the inside of the base formed by the resin 50, and the exposed surface is It has a structure disposed so as to face the outside of the base.

9 illustrates a method of manufacturing a road marking reflector having a structure in which a part of the light transmitting body 21 is exposed from the resin 50 and the other part, that is, the reflective layer 30 is embedded in the resin 50. Referring to FIG. 9, the manufacturing method of the road marking reflector 7 according to the present invention includes a preparation step, an arrangement step, an injection step, and a separation step, wherein the preparation step includes a resin of the light transmitting body 21. (50) The method further includes forming a plurality of semi-spherical inlet grooves 41b on the inner circumferential surface of the cavity 41a so as to expose a portion of the outer circumferential surface to the outside of the surface of the resin 50 without completely buried therein.

The inlet grooves 41b formed in the mold 41 are preferably formed to be close to each other so that a large number of the light-transmitters 21 can be arranged in the cavity 41a.

The inlet groove 41b undergoes an arranging step of inserting the exposed surface of the light-transmitting body 21, and then manufactures a reflector for road marking through an injection step and a separation step.

Since the injection step and the separation step are the same as the manufacturing method of the reflector for road marking according to the first embodiment of the present invention, duplicate description thereof will be omitted.

10 illustrates a method of manufacturing a reflector for a road marking according to a third embodiment of the present invention. Referring to FIG. 10, the method for manufacturing the reflector 8 for road marking according to the present invention includes a preparation step of preparing a mold 41 having a cavity 41a therein, and a light-transmitting body 21 formed of a transparent material. An arrangement step of arranging the cavity 41a, a reflection layer forming step of forming a reflection layer 30 on a part of the surface of the light projecting member 21 opposite to the inner circumferential surface of the cavity 41a, and a resin in the cavity 41a. Injecting (50) to form a base, and the resin 50, that is, a separation step of separating the base from the cavity (41a) after the base is cured.

In the arranging step, the light emitting bodies 21 are adjacent to each other in a state in which the semicircular cavity 41a is provided to accommodate the light transmitting bodies 21, that is, the inner circumferential surface of the cavity 41a is in contact with each other. In the reflective layer forming step, the reflective layer 30 is formed by spraying a paint including a reflective material on the outer circumferential surface of the light transmitting body 21 arranged on the inner circumferential surface of the cavity 41a. The reflective layer 30 formed in the reflective layer forming step is formed only in the region on the side opposite to the inner circumferential surface of the cavity 41a, and is not formed in the portion in contact with the inner circumferential surface of the cavity 41a and in the area around the circumferential surface. The reflective layer forming step may be deposited using aluminum. Since the injection step and the separation step carried out later are the same as the manufacturing method of the reflector for road marking according to the first embodiment of the present invention, redundant description is omitted.

11 shows a method of manufacturing a reflector for a road sign according to a fourth embodiment of the present invention. Referring to FIG. 11, the method of manufacturing the road marking reflector 9 according to the present invention includes a preparation step, an arrangement step, a reflection layer forming step, an injection step, and a separation step. Since it is the same as the manufacturing method of the reflector for road marking according to the first embodiment of the present invention, redundant description is omitted.

The preparation step further includes applying a binder 70 to the inner circumferential surface of the cavity 41a so that about half of the light-transmitting body 21 may be embedded therein. The binder 70 applied in the preparation step may not only provide a bonding force for coupling the light transmitting bodies 21 to each other, but also surround the remaining areas to form the reflective layer 30 only in a predetermined area of the light transmitting body 21. Has a mask function.

The arranging step is spraying or arranging a part of the outer circumferential surface of the light-transmitting body 21 to be preferably embedded in the interior of the binder 70 applied to the inner circumferential surface of the cavity 41a so that the reflective layer forming step is performed using the binder 70. The reflective layer 30 is formed by a deposition method using a paint or aluminum containing a reflective material on the exposed surface exposed to the outside.

Although not shown in the drawing, the binder 70 is applied to the inner circumferential surface of the cavity 41a, and the outer circumferential surface of the light transmissive body 21, that is, the binder ( An adhesive layer may be formed by applying an adhesive to firmly bond the exposed surface of the light-transmitting body 21 exposed to the outside of the 70 and the reflective layer 30 to each other.

12 illustrates a method of manufacturing a reflector for a road marking according to a fifth embodiment of the present invention. Referring to FIG. 12, in the manufacturing method of the reflector 10 for road marking according to the present invention, a mold 41 having a cavity 41a is prepared therein, and a semi-spherical inlet groove 41b is formed on an inner circumferential surface of the cavity 41a. And a step of arranging the light-transmitter 21 in the cavity 41a by inserting the light-transmitter 21 formed of a transparent material into the inlet groove 41b, and the inner circumferential surface of the cavity 41a. A reflective layer forming step of forming a reflective layer 30 on a portion of a surface of the light projecting member 21 opposite to the surface, that is, an exposed surface exposed to the cavity 41a, and injecting a resin 50 into the cavity 41a. An injection step of forming a base, and a separation step of separating the base from the cavity after the resin 50, that is, the base is cured. The inlet groove 41b formed in the preparation step is preferably formed to be close to each other so as to accommodate as many light emitters 21 as possible in the cavity 41a, and formed at a depth corresponding to half of the light transmissive body 21. It is preferable.

The reflective layer forming step is formed by using a paint or aluminum containing a reflective material, and although not shown in the drawing, in order to enhance the bonding force between the reflective layer 30 and the light transmitting body 21 before forming the reflective layer 30. An adhesive may be applied to the outer circumferential surface of the light transmitting body 21.

Through the reflective layer forming step, the reflective layer 30 is formed on the inner circumferential surface of the cavity 41a as well as the outer circumferential surface of the light-transmitting body 21. In this case, the reflective layer formed on the inner circumferential surface of the cavity 41a is manufactured through an injection step and a separation step. It remains on the surface of the road marking reflector 10, that is, the surface of the base, and reflects light.

Meanwhile, FIG. 13 illustrates a method of manufacturing a reflector for road marking according to a sixth embodiment of the present invention. Referring to FIG. 13, the manufacturing method of the reflector 11 for road marking includes a preparation step, an arrangement step, an injection step, and a separation step.

In the preparing step, the mold 42 having the cavity 42a is prepared. The mold 42 is open at the top so as to fill the cavity 42a with the resin 50 described later, and the cavity 42a. The bottom surface of) is formed in a triangular wave shape alternately formed with the floor and the valley.

In the arranging step, the light-transmitting member 21 having the reflective layer formed on a portion of the outer circumferential surface thereof is arranged on the inclined bottom surface of the cavity 42a. It is arranged to contact the bottom surface of the, and in the injection step, the resin 50 is injected into the cavity 42a to form a base for supporting the light-transmitting body 21.

In the separation step, the resin 50 is cured and the light transmitting body 21 is firmly fixed to the resin, and then the resin 50 is separated from the mold 42.

Road marker reflector according to the present invention as described above and a method of manufacturing the same has been described with reference to an embodiment shown in the drawings, but this is only an example, those of ordinary skill in the art It will be understood that other variations and equivalent embodiments are possible.

Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims

A base attached to the road facility or the road surface;

A light transmitting body mounted on the base and formed of a transparent material;

And a reflective layer formed on a contact surface between the light projecting member and the base to reflect light incident on the light projecting body.
The method of claim 1,

The base has a flat lower portion and an upper portion formed of a convex dome structure,

The light reflector is a part for the road sign reflector, characterized in that the portion is inserted into the interior of the base so that a portion of the outer peripheral surface is exposed to the upper surface of the base.
The method of claim 1,

The base has a flat lower portion and an upper portion formed with a plurality of inclined surfaces,

The light reflector is a road marking reflector, characterized in that a portion is inserted into the upper portion of the base so that a portion of the outer peripheral surface is exposed to the upper surface of the base.
A preparation step of preparing a mold having a cavity provided therein;

An arranging step of arranging a light-transmitter formed of a transparent material and having a reflective layer formed in the cavity so that the reflective layer is spaced apart from an inner circumferential surface of the cavity;

An injection step of forming a base by injecting a resin into the cavity;

And separating the base from the cavity after the base is cured.
The method of claim 4, wherein

The preparation step forms a semi-spherical inlet groove on the inner circumferential surface of the cavity,

And the arranging step is arranged so that the exposed surface of the light transmitting body other than the reflective layer is inserted into the recess groove.
The method of claim 4, wherein

A method for manufacturing a reflector for road markings, characterized in that an adhesive layer is formed between the light transmitting body and the reflecting layer.
A preparation step of preparing a mold having a cavity provided therein;

Arranging a light-transmitter formed of a transparent material in the cavity;

A reflective layer forming step of forming a reflective layer on a portion of the surface of the light projecting body opposite to the inner circumferential surface of the cavity;

An injection step of forming a base by injecting a resin into the cavity;

And separating the base from the cavity after the base is cured.
The method of claim 7, wherein

The preparation step is to apply a binder on the inner peripheral surface of the cavity,

The arraying step is sprayed so that a portion of the outer peripheral surface of the light-transmitter is embedded in the binder,

The reflective layer forming step is characterized in that for forming a reflective layer on the exposed surface exposed to the outside of the binder.
The method of claim 7, wherein

The preparation step forms a semi-spherical inlet groove on the inner circumferential surface of the cavity,

The arranging step inserts the light transmitting body into the inlet groove,

The reflective layer forming step is characterized in that for forming a reflective layer on the exposed surface exposed to the cavity.
The method of claim 7,

The reflective layer forming step

And a reflective layer is formed after applying an adhesive to a surface of the light transmissive body.