JP5227256B2 - Road marking object - Google Patents

Description

  The present invention relates to a road marking body that is erected and installed for the purpose of, for example, marking of a traveling direction at a median strip of a road or a branch point of an expressway.

  As a conventional road marking body, a columnar body projecting from a road surface is flexible, so that it can be restored to its original shape without being damaged by a collision from a vehicle. Such a road marking body reflects light rays from the headlight of the vehicle, guides the driver's line of sight even at night, and recognizes the center line, road shoulder, etc. Has been made

  For example, in Patent Document 1, a retroreflective sheet is attached to the pole portion of the sign body having a base portion fixed to a road and a flexible pole portion protruding from the base portion. In addition, a circumferential recess is formed on the outer peripheral surface of the base portion of the sign body over the entire circumference, and a number of glass bead reflectors are disposed at appropriate intervals on the strip. The present applicant has proposed a road marking body characterized in that a strip-shaped reflector is wound around and attached to the concave portion over the entire circumference.

Japanese Patent No. 3958640

  The road marking body described in Patent Document 1 uses a band-like reflector provided with a reflector attached to a concave portion provided in the base portion, thereby facilitating the mounting work to the base portion, and the reflector can be removed. It is suppressed. The present invention improves this to improve the visibility.

In order to achieve the above object, the present invention is configured as follows.
That is, the road marking body according to the present invention is a road marking body including a base portion fixed to a road and a flexible column-shaped pole portion protruding upward from the base portion. And
In the base portion, a circumferential recess is formed on the outer peripheral surface over the entire circumference,
A belt-like reflector is wound around the entire circumference and attached to the recess.
The band-shaped reflector is configured by arranging a number of glass bead reflectors at appropriate intervals on the surface of the band-shaped body,
The reflector is arranged to form a plurality of rows in the longitudinal direction of the strip;
The belt-like body is characterized in that a through groove extending from the front surface to the back surface is provided between the rows formed by the reflectors.

According to the road marking body according to the present invention, a number of glass bead reflectors are arranged on the surface of the band-like body at appropriate intervals to form the band-like reflector, and the reflector is formed on the band-like body. Since it arrange | positions so that a several row | line | column may be formed in a longitudinal direction, the said reflector is arrange | positioned in multiple rows over the perimeter of the outer peripheral surface of the said base part, and visibility at night etc. improves.
In addition, since the reflectors are disposed so as to form a plurality of rows in the longitudinal direction of the strips, a plurality of reflectors can be disposed at a time by attaching an integral strip reflector, Installation work is good.

  In addition, since a through groove extending from the front surface to the back surface of the belt-like body is provided between the rows formed by the reflectors, when the vehicle contacts the road marking body and the base portion is distorted, it follows this. The distortion of the strip is absorbed by the through grooves between the rows. Thereby, breakage and dropout of the reflector are suppressed.

Further, if a circular notch is provided at the end of the through groove, when the vehicle contacts the road marking body and the base portion is distorted, the strip is greatly distorted in the through groove, The force concentrated on the end portion of the through groove is preferably dispersed at the notch, and the destruction of the band-like body is suppressed.
Further, if the diameter of the notch is made larger than the width of the through groove, the radius of the notch is increased, so that the force concentrated on the end of the through groove is further dispersed. Is more preferable.

  According to the road marking body according to the present invention, a plurality of rows of reflectors are disposed on the belt-like reflector, the visibility is improved, and breakage and dropout of the belt-like reflector are suppressed by the through grooves between the rows. .

(A) which shows one Embodiment of the road marking body which concerns on this invention is a top view, (b) is a front view. It is sectional drawing of FIG. It is a figure which shows one Embodiment of the strip | belt-shaped reflector which concerns on this invention. (A) is an enlarged view of FIG. 3, (b) is an AA cross-sectional view of (a). It is an enlarged view of a base part vicinity, (A) is a figure which shows the condition before attaching a strip | belt-shaped reflector, (B) is a figure which shows the condition after attaching a strip | belt-shaped reflector.

Embodiments of the present invention will be specifically described with reference to the drawings.
FIG. 1 is a plan view and a front view showing an embodiment of a road marking body according to the present invention, and FIG. 2 is a cross-sectional view of FIG.
In the drawings, 1 is a pole portion of a road marking body, 2 is a base portion, and the road marking body according to the present invention is configured by protruding the pole portion 1 on the upper surface of the base portion 2. .

The cap part 12 is being fixed to the pole part 1 by fusion | melting so that the upper end of the pillar part 11 formed in the cylindrical hollow pillar shape may be plugged up. A reflective sheet 14 having retroreflectivity that reflects outgoing light in parallel to incident light is attached to the outer peripheral side surface of the column portion 11.
The pole portion 1 is formed of a thermoplastic polyurethane resin so that the pole portion 1 is flexible so that it can be restored to its original state after being stepped on by a vehicle or the like. Can be suitably used.

Reference numeral 4 denotes a reinforcing cylinder that reinforces the column part 11 from the inside. The reinforcing cylinder 4 is formed in a cylindrical shape having an outer diameter slightly smaller than the inner diameter of the column part 11.
The material of the reinforcing cylinder 4 is preferably a thermoplastic polyurethane, a soft polyolefin, an elastomer, or the like in consideration of ease of molding, resilience to treading of a vehicle, durability, and the like.

The base portion 2 is formed in a flat columnar shape, provided with an annular column portion insertion annular groove 22 for inserting the column portion 11 on the upper surface, and an annular reinforcement tube insertion ring for inserting the reinforcement tube 4 therein. The groove 21 is formed so as to be provided.
The column part 11 and the reinforcing cylinder 4 are respectively inserted into and fused to the column part insertion annular groove 22 and the reinforcement cylinder insertion annular groove 21 and fixed to the base part 2.
By fusing the reinforcing cylinder 4 together with the base 11 to the base 2, when the pole 1 is bent due to the vehicle passing over the road marking body, the stress applied to the base of the post 11 is applied. The reinforcing cylinder 4 can be dispersed.
As the material of the base portion 2, like the column portion 11 and the reinforcing cylinder 4, thermoplastic polyurethane, soft polyolefin, elastomer, and the like that are excellent in ease of molding and resilience to trampling of vehicles can be suitably used. Further, hard synthetic resins such as polyethylene, polypropylene, ABS resin, ASA resin, polyvinyl chloride resin, and acrylic resin can also be suitably used. In this embodiment, it is formed using thermoplastic polyurethane.
Anchor bolts 6 are integrally planted on the lower surface of the base 2 when the base portion 2 is molded.
Further, the shape of the base portion 2 is not limited to the above-described columnar shape, and may be a trapezoidal weight, for example.

  An air vent hole 13 is formed in the upper end of the cap portion 12 so as to penetrate from the upper surface to the lower surface. By providing the air vent hole 13, when the pole portion 1 is stepped on by a vehicle or the like and crushed, air inside the hollow portion 15 in the hollow pillar-shaped column portion 11 is discharged from the air vent hole 13. Is prevented from bursting due to an increase in internal air pressure.

Reference numeral 3 denotes a belt-like reflector.
The band-shaped reflector 3 is formed by arranging reflectors 31 made of glass beads on the surface of the band-shaped body 32 at an appropriate interval.
A side wall groove portion 24 for attaching the strip-shaped reflector 3 is formed on the side wall of the base portion 2 over the entire circumference.
The band-shaped reflector 3 is wound around and attached to the side wall groove portion 24. Thus, the band-shaped reflector 3 is hardly detached by being attached to the side wall groove portion 24 of the base portion 2, and the reflector 31 is attached to the side wall groove portion. It can be provided without projecting from the side wall of the base portion 2 by the amount of 24, and it is preferable because it can prevent positional displacement in the vertical direction.

In the side wall of the base portion 2, a buffer groove 23 is formed in the circumferential direction above the side wall groove portion 24.
When the buffer groove 23 is formed above the side wall groove portion 24 where the band-like reflector 3 is attached, the road marking body is crushed by a wheel or the like and a force such as a load is applied to the base portion 2 from above. Moreover, since the force from the upper direction is dispersed at this position by crushing the buffer groove 23, the force applied to the belt-like reflector 3 attached below the buffer groove 23 is reduced, and the belt-like reflector 3 is reduced. Occurrence of dropout and destruction of the product is reduced.

FIG. 3 is a view showing an embodiment of the strip-shaped reflector 3 according to the present invention, FIG. 4 (a) is an enlarged view of FIG. 3, and (b) is an AA cross-sectional view of (a). is there.
The reflectors 31 are arranged so as to form a plurality of rows in the longitudinal direction of the belt-like body 32, and in this embodiment, two rows are formed. By arranging the reflectors 31 in a plurality of rows in this way, the reflectors 31 are arranged in a plurality of rows on the outer peripheral surface of the base portion 2, and thus visibility at night and the like is improved.
Further, by attaching the integrated strip-shaped reflector 3, a plurality of rows of reflectors 31 can be disposed at a time, and the material of the strip-shaped body 32 that is easy to mount is made of metal such as steel, stainless steel, and aluminum. Although it may be used, it is preferable to use a highly elastic synthetic resin such as rubber, urethane resin, or elastomer in order to make it easy to embed and form the reflector 31, so that the reflector 31 is difficult to come off. It is more preferable to use a thermoplastic synthetic resin having a certain degree of hardness, such as polyethylene and polypropylene.

The band-like body 32 is formed with the length in the longitudinal direction corresponding to the circumference of the side wall groove portion 24 of the base portion 2, and screw holes 35 are formed in the vicinity of both ends from the front surface to the back surface. I am letting. The belt-like reflector 3 is wound around the side wall groove portion 24 of the base portion 2 so that both ends of the belt-like body 32 are aligned, and the fixing screws 5 are respectively inserted into the screw holes 35 to be inserted into the base portion 2. It is fixed to part 2.
The screw hole 35 is formed at a position corresponding to the center in the width direction of the belt-like body 32. This is to prevent a problem that the force concentrates near the screw hole 35 of the strip-shaped reflector 3 and breaks when a wheel or the like collides with the road marking body and a force is applied to the base portion 2 and the strip-shaped reflector 3. belongs to.

In the belt-like body 32, through grooves 33 penetrating from the front surface to the back surface are formed between the rows formed by the reflectors 31 arranged. Specifically, the through-groove 33 is formed in a single line at the center of each row formed by the reflectors 31 and is formed in a long shape such that its end is located near each screw hole 35.
By providing the through groove 33, when the vehicle or the like comes into contact with the road marking body and the base portion 2 is distorted, the distortion of the belt-like body 32 generated following this is absorbed by the through groove 33. The distortion at the mounting position of the reflector 31 is further reduced, and the drop of the reflector 31 is suppressed.
The through groove 33 is formed at a position corresponding to the center of the row of the reflectors 31 in order to make the distance between the through groove 33 and the reflector 31 farther so as to further prevent the reflector 31 from dropping off. is there.
In the present embodiment, the reflector 31 is disposed at the center position between the through groove 33 and the side edge of the belt-like body 32.

Circular cutouts 34 are formed at both ends of the through groove 33. Specifically, the diameter of the notch 34 is formed to be slightly larger than the width of the through groove 33.
By providing the notch 34 at the end of the through-groove 33, when the vehicle or the like contacts the road marking body and the belt-like body 32 is distorted by the through-groove 33 as described above, The concentrated force is dispersed at the notch 34, and the destruction of the band-like body 32 is suppressed.
Further, by making the diameter of the notch 34 larger than the width of the through groove 33, the radius of the notch 34 is increased, the force concentrated on the end of the through groove 33 is further dispersed, and the band-shaped body 32 is broken. Is more suppressed.

FIG. 5 is an enlarged view of the vicinity of the base portion 2, (A) is a diagram showing a situation before the strip-shaped reflector 3 is attached, and (B) is a diagram showing a situation after the strip-shaped reflector 3 is attached. is there.
The side wall groove portion 24 of the base portion 2 is formed to have a width corresponding to the belt-like body 32.
Further, in the side wall groove portion 24, the protrusion 25 is formed so as to protrude outward at a position corresponding to the through groove 33 of the wound belt-like reflector 3. Specifically, the width and length of the ridge 25 are formed corresponding to the width and length of the through groove 33, and the protrusion size of the ridge 25 is formed smaller than the thickness of the strip 2. Has been.
By forming the ridges 25 as described above, the ridges 25 are accommodated inside the through grooves 33 and the through grooves 33 are crushed when the strip-shaped reflector 3 is wound around and attached to the side wall grooves 24. The distortion of the belt-like body 32 can be absorbed while suppressing the displacement of the belt-like reflector 3 that occurs in the side wall groove 24.

  In the base portion 2, the belt-like reflector 3 is wound around the side wall groove portion 24, and the fixing screw 5 inserted through the screw hole 35 is screwed into the small hole 26 provided in the side wall groove portion 24, so that the base portion 2 has the belt-like reflection. The body 3 is fixed.

  In the present embodiment, the reflectors 31 are arranged in two rows on the belt-like reflector 3, but the present invention is not limited to this, and the reflectors 31 may be arranged in three or more rows. In such a case, the through grooves 33 may be provided between all the rows constituting the reflector 31, or may be appropriately selected.

DESCRIPTION OF SYMBOLS 1 Pole part 11 Column part 12 Cap part 13 Air vent hole 14 Reflection sheet 15 Hollow part 2 Base part 21 Reinforcement cylinder insertion annular groove 22 Column part insertion annular groove 23 Buffer groove 24 Side wall groove 25 Projection 26 Small hole 3 Band-shaped reflector 31 reflector 32 band 33 through groove 34 notch 35 screw hole 4 reinforcing cylinder 5 fixing screw 6 anchor bolt

Claims (2)

A road marking body comprising a base portion fixed to a road, and a flexible pole-shaped pole portion protruding upward from the base portion,
In the base portion, a circumferential recess is formed on the outer peripheral surface over the entire circumference,
A belt-like reflector is wound around the entire circumference and attached to the recess.
The band-shaped reflector is configured by arranging a number of glass bead reflectors at appropriate intervals on the surface of the band-shaped body,
The reflector is arranged to form a plurality of rows in the longitudinal direction of the strip;
The sign according to claim 1, wherein a through groove extending from the front surface to the back surface is provided between the rows formed by the reflector.   The road marking according to claim 1, wherein a circular notch is provided at an end of the through groove, and a diameter of the notch is larger than a width of the through groove. body.

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