JP3806558B2 - Retroreflective pole - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pole having retroreflectivity.
[0002]
[Prior art]
Reflective tape is attached to the outer surface of the pole body, and when the vehicle headlight is irradiated, the retroreflective pole made to retroreflect the light in the direction of the vehicle, particularly as road safety equipment, for example, Widely used in road signs, gaze guidance signs, snow poles, pedestrian crossing fences, etc.
[0003]
Conventionally, the pole body is formed from an extruded material made of aluminum or an aluminum alloy, a metal material such as a galvanized steel pipe, a synthetic resin material such as a polyethylene pipe or a vinyl chloride pipe, a fiber reinforced synthetic resin material such as FRP, or the like. The tape is retroreflective by a retroreflective lens composed of microsphere groups and microprism groups supported by a support material, and the support material is generally formed from an acrylic resin or a vinyl chloride resin, and This reflective tape is firmly attached to the pole body with an adhesive or adhesive suitable for the material of the pole body so that peeling due to aging does not occur.
[0004]
[Problems to be solved by the invention]
However, such a pole needs to be replaced due to deterioration due to aging, damage due to vehicle collision, or the like. Conventionally, when trying to dispose of the pole removed in such a case, the reflective tape is firmly attached to the pole body as described above, and it is difficult to separate the pole body and the reflective tape. It is not easy to separate and recycle the reflective tape, and most of them treat the pole body and the reflective tape as industrial waste as a single unit.
[0005]
Even if the pole body is made of polyethylene that can be easily recycled, the pasted reflective tape is made of acrylic resin or vinyl chloride resin, which is different from the conventional materials. And reflective tape could not be recycled as a unit. Therefore, it is possible to cut and discard only the part where the reflective tape is applied, and collect and recycle other parts. However, if the reflective tape is applied over a wide area, discard more than half of the pole body. In addition, since it takes time and effort to cut, the recycling effect is very poor and impractical.
[0006]
Accordingly, the present invention is to solve the above problems, and to provide a pole that is easy to recycle and has a retroreflective property that is highly recyclable.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is configured as follows. That is, the retroreflective pole according to the present invention is a retroreflective pole comprising a pole body and a retroreflective reflecting sheet attached to the pole body, the pole body and the reflective pole. Both the support material for supporting the retroreflective lens of the sheet is formed from olefinic hydrocarbon , and can be pulverized and recycled without separating the pole body and the reflective sheet. It is characterized in that it is adhered to the outer surface of the pole body with an acrylic pressure-sensitive adhesive or adhesive .
[0008]
According to the present invention, since the pole body and the support material for supporting the retroreflective lens of the reflective tape are both made of olefinic hydrocarbon, the pole body and the reflective tape are pulverized and recycled without separation. can do. Therefore, recycling becomes easy and recycling efficiency improves.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be specifically described with reference to the drawings.
First, FIG. 1 is a cross-sectional view of the main part showing an embodiment of the present invention, FIG. 2 is a cross-sectional view of the main part showing another embodiment of the present invention, and FIG. 3 is still another embodiment of the present invention. It is sectional drawing of the principal part which shows.
[0010]
In the drawing, 1 is a pole body, which is formed from olefinic hydrocarbons. Olefin-based hydrocarbons are easy to recycle and produce less harmful substances during recycling. The type of olefinic hydrocarbon to be used is not limited, but among olefinic hydrocarbons, polyethylene and polypropylene, which are particularly excellent in moldability, strong against impact, and low in cost, are preferable. Further, a mixed material of polyethylene and polypropylene may be used, and further, a reinforcing material such as glass fiber may be mixed therein. In the case of recycling a material mixed with a reinforcing material such as glass fiber, it can be removed by filtering with a filter or the like in the molten state at the time of recycling.
[0011]
Reference numeral 2 denotes a reflection sheet, which is firmly attached to the outer surface of the pole body 1 with an adhesive 21 or an adhesive suitable for the material of the pole body 1. In the reflection sheet 2 in this embodiment, a retroreflective lens 23 composed of a small prism group 22 satisfying retroreflectivity is latticed by a seal leg 26 on a support member 25 arranged with an air layer 24 on the back surface. The retroreflective lens 23 and the support material 25 are both formed from olefinic hydrocarbons. The type of olefinic hydrocarbon used is not particularly limited, but polyethylene and polypropylene are preferred for the same reason as in the case of the pole body 1. In addition, it is preferable to use the same kind of the adhesive material 21 and the adhesive, etc. However, since polyethylene and polypropylene are difficult to use as the adhesive material 21 and the adhesive because of their properties, generally, An acrylic pressure-sensitive adhesive material 21 or an adhesive is used. Even if the pressure-sensitive adhesive material 21 is made of another material such as an acrylic material, an adhesive, or the like, there is no problem in recycling as long as the amount is normally used.
[0012]
As shown in FIG. 2, the reflection sheet 2 has a retroreflective lens 23 formed of a group of microspheres 27 such as glass beads satisfying the retroreflective property supported by a support member 25, and an upper portion of the retroreflective lens 23. Further, a protective film 28 is disposed so as to confine the air layer 24 in a capsule shape, and both of the protective film 28 and the support material 25 may be made of olefinic hydrocarbons. Also in this case, polyethylene and polypropylene are preferable as the olefinic hydrocarbon. Reference numeral 29 denotes an aluminum vapor deposition film.
[0013]
In addition, as shown in FIG. 3, the reflective sheet 2 is partially embedded with a retroreflective lens 23 made of a microsphere group 27 such as glass beads that satisfies the retroreflective property, in a support material 25 made of olefin hydrocarbon. A protective film 28 is disposed above the protective film 28, and both the protective film 28 and the support member 25 may be made of olefinic hydrocarbons. Also in this case, polyethylene and polypropylene are preferable as the olefinic hydrocarbon.
[0014]
The reflection sheet 2 shown in FIG. 1 is extremely suitable for recycling because the entire reflection sheet 2 is made of olefinic hydrocarbon. When the reflective sheet 2 shown in FIGS. 2 and 3 is used, it is preferable to remove the microspheres 27 such as glass beads when recycling. In order to remove the microspheres 27 such as glass beads, the microspheres 27 can be removed by filtering with a filter or the like in a molten state during recycling.
[0015]
Note that the retroreflective lens 23 of the reflective tape 2 shown in FIG. 1 and the protective film 28 of the reflective tape 2 shown in FIGS. 2 and 3 are both made of olefinic hydrocarbons as described above. Moreover, it is exposed as the outer surface. However, since olefinic hydrocarbons do not have high scratch resistance and weather resistance, their outer surfaces may be scratched or deteriorated depending on the place of use. Therefore, in this case, a protective layer made of an acrylic resin or the like that is excellent in scratch resistance and weather resistance may be provided on the outer surface so as not to hinder recycling.
[0016]
The pole according to the present invention can be widely used as road safety equipment, for example, for road signs, line-of-sight guidance signs, snow poles, pedestrian crossing fences, and the like.
[0017]
For example, as shown in FIG. 4, a yellow reflective tape 2 made of polyethylene and having a support material 25 as shown in FIGS. 1 to 3 is attached to the outer periphery of a pole body 1 made of polyethylene. A gaze guidance mark is obtained by attaching the gaze guidance specimen 3 having the retroreflector 31 to the upper end of the pole P according to the present invention.
[0018]
Further, as shown in FIG. 5, a wide red reflecting tape 2 in which a support member 25 as shown in FIGS. 1 to 3 is made of a mixed material of polyethylene and polypropylene is disposed on the outer periphery of a pole body 1 formed using polyethylene. A two-stage snow pole can be obtained by connecting a small-diameter pole P according to the present invention, which is manufactured by sticking a plurality of parts, to a large-diameter pole Q formed using polyethylene in an extendable manner. As shown in FIG. 5, the line-of-sight sample body 3 having the retroreflectors 31 may be attached to the poles P and Q as appropriate. 5A shows a state where the upper pole P is extended, and FIG. 5B shows a state where the upper pole P is contracted.
[0019]
Also, as shown in FIG. 6, a book in which a yellow reflecting tape 2 made of polyethylene is attached to the outer periphery of a pole body 1 made of polyethylene as shown in FIGS. By attaching the sign body 4 to the upper end of the pole P according to the invention, a sign device can be obtained.
[0020]
Further, as shown in FIG. 7, a support member 25 as shown in FIGS. 1 to 3 is formed on the outer periphery of the pole body 1 which uses polyethylene and is sleeved at the time of molding to reduce the outer diameter from the center to the tip. A covering type snow pole can be obtained by covering the upper end of the pole P according to the present invention, in which a plurality of wide red reflective tapes 2 made of a mixed material of polypropylene and polypropylene are pasted at a plurality of locations. In this case, the cap 5 is preferably formed from the same material as the pole body 1.
[0021]
Also, as shown in FIG. 8, on the outer circumferences of a substantially flat wide long pole body 1 made of polyethylene and a short pole body 1 having a thick outer diameter, as shown in FIGS. The long and short poles P1 and P2 according to the present invention are used in which the supporting material 25 is made of polyethylene-coated reflective tape 2, and the short pole P2 is disposed between the traveling lane and the opposite lane in the road direction. A pedestrian crossing prevention fence can be obtained by erecting a long pole P1 between the short poles P2 and standing up at appropriate intervals along the vertical poles P2.
[0022]
In the gaze guidance mark, the two-stage snow pole, the marking device, etc., if the gaze guidance specimen 3 and the marking body 4 are attached to the pole P so as to be separable, the gaze guidance specimen 3 and the sign are disposed at the time of disposal. The main body 4 and the like are separated from the pole P, and the pole P can be recycled with the reflective tape 2 attached to the pole body 1.
[0023]
The pole according to the present invention is not limited to the above application, and is not limited to road safety equipment, and can be widely used for other applications.
[0024]
【The invention's effect】
According to the present invention, since the pole body and the support material that supports the retroreflective lens of the reflective tape are both made of olefinic hydrocarbon, the pole body and the reflective tape are pulverized and recycled without separation. can do. Therefore, recycling becomes easy and recycling efficiency improves.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a main part showing an embodiment of the present invention.
FIG. 2 is a cross-sectional view of a main part showing another embodiment of the present invention.
FIG. 3 is a cross-sectional view of a main part showing still another embodiment of the present invention.
FIG. 4 is a front view showing an embodiment of a use state of the present invention.
FIG. 5 is a front view showing another embodiment of the usage state of the present invention.
FIG. 6 is a front view showing still another embodiment of the usage state of the present invention.
FIG. 7 is a front view showing still another embodiment of the usage state of the present invention.
FIG. 8 is a perspective view showing still another embodiment of the usage state of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Pole main body 2 Reflective tape 21 Adhesive 22 Micro prism group 23 Retroreflective lens 24 Air layer 25 Support material 26 Seal leg part 27 Microsphere group 28 Protective film 29 Aluminum vapor deposition film 3 Line-of-sight sample 31 Retroreflector 4 Label Body 5 Cap

Claims (4)

A retroreflective pole comprising a pole body and a retroreflective reflective sheet attached to the pole body, the pole body and a support material for supporting the retroreflective lens of the reflective sheet. Both are formed from olefinic hydrocarbons so that the pole body and the reflective sheet can be crushed and recycled without separation , and the reflective sheet is an acrylic adhesive or adhesive on the outer surface of the pole body. A retroreflective pole characterized by being attached by In the reflection sheet, a retroreflective lens composed of a group of microprisms satisfying retroreflectivity is supported by a support material disposed on the back surface thereof, and both the retroreflective lens and the support material are made of olefinic hydrocarbon. The pole having retroreflective properties according to claim 1.  The retroreflective pole according to claim 1, wherein the reflective sheet comprises a retroreflective lens made of a group of microspheres satisfying the retroreflective property and supported by a support material made of olefinic hydrocarbon. .  In the reflection sheet, a retroreflective lens composed of a group of microspheres satisfying the retroreflective property is supported by the support material, and a protective film is disposed on the retroreflective lens, both of the protective film and the support material. The pole having retroreflective property according to claim 1, wherein is made of olefinic hydrocarbon.

Images