JP2007009623A - Traffic lane marker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the reflective performance of a reflective sheet and improve the durability of a reflective material to a fault caused from the outside. <P>SOLUTION: The reflective sheet 14 is arranged to become long in a longitudinal direction (vertical direction) for improving the perceptivity of a driver in a columnar body 11 of a traffic lane marker 10, and the reflective sheet 14 is prevented from a fault caused by treading by a tire with a rib shaped protrusion 13. A base 12 is formed with grooves 15 in parts against which the rib shaped protrusions 13 collide when the columnar body 11 falls to reduce stress caused on the root of the columnar body 11 when a fault occurs on a pedestal 12. A reinforcing sheet with tensile strength larger than that of the columnar body 11 is bonded to either the inner surface or the outer surface of the columnar body 11. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a resin-made, collapsible lane separator (also referred to as a line-of-sight guide) installed on a road for the purpose of central separation, lane separation, etc. It relates to a lane marking that improves the durability of reflectors against external obstacles.

  FIG. 8 is a diagram showing an example of a conventional retractable lane separator. As shown in FIG. 8, the lane marking 100 has a shape in which a cylindrical column main body 101 protrudes on a pedestal (base) 102 installed on a road surface. Is wound at regular intervals (usually three steps) in a band shape.

  The column main body 101 is made of soft synthetic resin such as polyurethane thermoplastic elastomer as a material, so it has excellent bending resistance. It flexes and deforms flexibly even if it is stepped on by a tire, and restores itself when the tire is no longer loaded. To do.

As a prior art document in which such a lane marking 100 is described, for example, there is Patent Document 1. Patent Document 1 discloses a technique for preventing the reflective sheet 103 from being torn or peeled by covering the reflective sheet 103 bonded to the column main body 101 of the lane separator with a protective film having translucency. Are listed.
Japanese Patent Laid-Open No. 10-147913

  In the conventional lane separator 100, a reflective sheet 103 is simply disposed in a strip shape on a columnar column main body 101. Therefore, when the vehicle is collided with the vehicle or is stepped on with a tire, the reflective sheet 103 directly touches the bumper or tire of the vehicle and easily peels off or the surface becomes dirty. Even when the reflective sheet 103 is covered with a protective film as in Patent Document 1, the problem of surface contamination due to tire marks is not solved, and the protective film itself may be peeled off by rubbing with a tire or the like. There was a problem. As described above, in the conventional lane marking 100, the reflective sheet 103 is significantly worn and it is difficult to maintain the reflective performance.

  The present invention solves the above-described problems, and provides a lane separator that is not easily damaged by external obstacles such as a vehicle collision or a stepping on a tire, and that can easily improve and maintain the reflection performance of a reflector. For the purpose.

  In order to solve the above-mentioned problems, the present invention forms a plurality of rib-shaped protrusions that are long in the vertical direction on the outer periphery of the column body of the lane separator, and disposes a reflector between the plurality of rib-shaped protrusions. It is characterized by. By providing rib-shaped protrusions on the pillar body of the lane separator, there is less possibility of bumpers, tires, etc. coming into direct contact with the reflecting surface of the pillar body when a vehicle crashes or when it is stepped on by a tire. .

  Moreover, the shape of the horizontal section of the hollow part of the column main body of the lane separator is not a circle but a flat shape. As a result, it is possible to increase the area of the reflective material facing in the directly facing direction of the vehicle traveling direction, and the reflection luminance in the directly facing direction in the traveling direction of the vehicle is improved.

  In addition, in order to protect the base part of the pillar body, a groove with a width larger than the width of the rib-like protrusion is provided in the part where the pillar-like body hits when the pillar body on the pedestal top surface of the lane separator is tilted. It is characterized by that. This makes it possible to suppress the bending angle of the base portion of the column main body when the column main body of the lane separator is tilted, and to reduce fatigue wear of the column main body due to stress.

  In addition, a reinforcing sheet having a greater elongation strength than the material of the column main body is bonded to the inner peripheral surface or the outer peripheral surface of the column main body of the lane separator. As a result, damage to the column body and the reflector due to the column body being pulled when the vehicle collides or when the vehicle is stepped on by a tire is reduced. In particular, the reflective material has a smaller elongation than the column main body resin, so there is a high possibility that it will not follow the elongation of the column main body resin and break. By suppressing the elongation of the main body, damage to the reflector can be reduced.

  In addition, on the outer peripheral surface of the column main body of the lane separator, a reflecting material that is longer in the vertical direction than the outer peripheral direction is divided into a plurality of pieces in the outer peripheral direction, and the inner peripheral surface or outer periphery of the column main body corresponding to the range occupied by the reflecting material A reinforcing sheet having a higher vertical strength than the material of the column main body is bonded to the position of the surface. Vertical reflection is effective for recognition of road alignment, such as curve depth and distance, as a driver's visual recognition characteristic. However, the vertically long reflective material is weak against pulling, and has a practical problem in terms of durability. According to the present invention, by attaching the reinforcing sheet to the column main body, the possibility of breakage of the reflecting material due to longitudinal pulling when the tire is stepped on is reduced. Therefore, the problem when using a vertically long reflective material is solved, and a lane separator with excellent reflection performance can be realized.

  In the present invention, a rib-like protrusion is provided on the pillar body of the lane separation mark, so that a bumper, a tire, or the like can be in direct contact with the reflecting surface of the pillar body at the time of a vehicle collision or a stepping with a tire. The nature becomes less. As a result, the wear of the reflective material can be reduced and the performance can be maintained for a long time.

  In addition, by providing a groove on the upper surface of the pedestal pedestal or by attaching a reinforcing sheet to the column body, the possibility of damage to the column body or the reflector due to stress such as bending or pulling is reduced. As a result, it is possible to reduce the wear of the column main body and the reflector of the lane separation mark, and it is possible to maintain a higher gaze guidance effect in the long term.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view of a lane separator according to an embodiment of the present invention. The lane separator 10 includes a column main body 11 and a pedestal 12.

  The column main body 11 is provided with rib-shaped protrusions 13 in the vertical direction. A reflective sheet 14 is attached to the outer peripheral surface between the rib-shaped protrusion 13 and the rib-shaped protrusion 13 so that the vertical direction (vertical direction) is long. The pedestal 12 is provided with a groove 15 at a portion where the rib-like protrusion 13 abuts when the column main body 11 falls. Further, protrusions 16 are provided on both sides of the column body 11 on the upper surface of the base 12.

  FIG. 2 is a front view, top view, and side view of a lane separator according to this embodiment. 2A is a top view of the lane separator 10, FIG. 2B is a front view of the lane separator 10, and FIG. 2C is a side view of the lane separator 10. FIG.

  In the present embodiment, as shown in FIG. 2 (B), the reflective sheet 14 is attached to the portion that becomes the valley of the rib-like protrusion 13 so that the longitudinal direction becomes longer. It is said that when the reflection sheet 14 is emphasized in the vertical direction, the depth of the curve and the sense of distance can be easily visually identified.

  FIG. 3 is a diagram for comparing and explaining a conventional lane separator and the lane separator according to the present embodiment. FIG. 3A is an example of the column main body 101 of the conventional lane separator 100, and FIG. 3B is an example of the column main body 11 of the lane separator 10 according to the present embodiment.

  As shown in FIG. 3A, the conventional lane separator 100 has a cylindrical shape, so that both ends are deep when viewed from the front, and the area is actually facing the front direction of the vehicle traveling direction. Will become narrower. In this case, sufficient reflection performance cannot be obtained in the directly opposite direction of the vehicle traveling direction which occupies most of the applications.

  On the other hand, as shown in FIG. 3B, the column body 11 of the lane separator 10 according to this embodiment has a flat shape like a cross section of a convex lens instead of a cylindrical shape when viewed from above. Compared with the conventional cylindrical type, the curved surface has a gentle arc. Therefore, the area of the surface effective for the reflection that is actually facing the direction of the vehicle traveling direction is wider than that of the cylindrical one.

  If the lane separator 10 according to the present embodiment is installed so that the surface in which the gentle arc is drawn is directly opposite to the vehicle traveling direction, the area of the reflection sheet 14 facing the directly facing direction of the vehicle traveling direction increases. Therefore, the reflected luminance in the front direction of the vehicle traveling direction is significantly improved as compared with the conventional lane separator 100.

  FIG. 4 is a diagram showing a state where the pillar body of the lane separator is stepped on the tire. The column main body 11 of the lane separator 10 according to the present embodiment is provided with rib-shaped protrusions 13 in the vertical direction. Since such rib-shaped projections 13 exist, even when the column main body 11 of the lane separator 10 is stepped on the tire 20 as shown in FIG. The possibility that the tire 20 directly contacts the attached reflection sheet 14 is low. In addition, even when the vehicle collides, the possibility that the reflection sheet 14 directly contacts the bumper is low. For this reason, the reflection sheet 14 is less damaged and damaged, and the durability is improved.

  In the case of the conventional lane marking 100 as shown in FIG. 8, there is a high possibility that the tire 20 or the bumper directly contacts the reflective sheet 103, and therefore the reflective sheet 103 may be stained or damaged. However, the present invention solves this problem.

  Next, the features of the pedestal 12 of this embodiment will be described. When the lane marking 10 is stepped on the tire 20, the most burdensome part is the base part of the column main body 11 having the highest degree of deformation. In order to reduce the burden on the base portion of the column main body 11, the pedestal 12 of the lane separator 10 according to the present embodiment is devised.

  First, the pedestal 12 is provided with a groove 15 at a portion where the rib-shaped protrusion 13 hits when the pillar body 11 is tilted. When the rib-shaped protrusions 13 are present on the column main body 11, the burden on the rib-shaped protrusions 13 is increased when the tire 20 is stepped on. In particular, the burden on the base portion of the column main body 11 can be fatal. In order to reduce the burden on the rib-shaped protrusion 13 at the base portion of the column main body 11, the pedestal 12 of the lane separator 10 according to the present embodiment has a width slightly larger than the lateral width of the rib-shaped protrusion 13. The groove 15 is provided along the direction in which the column main body 11 is easily bent.

  Further, the pedestal 12 is provided with pedestals at both ends of the portion where the column main body 11 is installed in order to prevent a heavy burden from being applied directly to the base portion of the column main body 11 when the column main body 11 is stepped on the tire 20. A mountain-shaped protrusion 16 is provided along the outer edge of 12. When the tire 20 rides on the lane marking 10, the tire 20 is applied to the protrusion 16 provided on the pedestal 12, so that the load directly applied to the bent portion of the base portion of the column main body 11 is reduced.

  FIG. 5 is a cross-sectional view of the lane separator according to this embodiment. FIG. 5 is a view showing a cut surface obtained by cutting the lane separator 10 of FIG. 2B along a-a ′. 5A is an example in which a reinforcing sheet 17 is disposed on the inner surface of the column main body 11 of the lane separation mark 10, and FIG. 5B is an example of the outer surface of the column main body 11 of the lane separation mark 10 and the inner side of the reflection sheet 14. This is an example in which a reinforcing sheet 17 is arranged.

  Moreover, FIG. 6 is a figure which shows the example of arrangement | positioning of the reinforcement sheet | seat by this Embodiment. In FIG. 6, the position of the reinforcing sheet 17 that cannot be seen from the outside is indicated by a broken line. FIG. 6A shows an example in which a reinforcing sheet 17 is arranged on the inner surface of the column main body 11 at a portion where the reflecting sheet 14 is disposed. FIG. 6B shows the reinforcing sheet up to the root portion on the inner surface of the column main body 11. FIG. 6C illustrates an example in which the reinforcing sheet 17 is disposed on the outer surface of the column main body 11 and inside the reflection sheet 14.

  The collapsible performance of the column main body 11 (restorability of repeated bending) is that the column main body 11 is bent when the tire 20 is stepped on in addition to the stress of elongation generated by the column main body 11 being pulled when the vehicle collides. It decreases at an accelerated rate due to the duplication of stress. However, the conventional lane marking 100 does not have a structure that suppresses the “elongation” of the column main body 101.

  Further, since the reflection sheet 14 has less elongation than the resin of the column main body 11, the reflection sheet 14 cannot follow the “elongation” of the resin of the column main body 11 at the time of a vehicle collision, and is likely to break. For this reason, in the conventional lane separator 100, the reflective sheet 14 cannot be disposed vertically with respect to the column main body 11 of the lane separator 10 as in the present embodiment.

  In the lane separator 10 according to the present embodiment, a reinforcing sheet 17 having a greater strength than the column main body 11 is disposed on the column main body 11 in order to suppress the vertical extension of the column main body 11. Since a soft synthetic resin such as urethane elastomer that can be elastically deformed is used as the material of the column main body 11, the material of the reinforcing sheet 17 is, for example, carbon (carbon fiber having a higher elongation strength than the soft synthetic resin). ) Use sheets, glass cloth, etc. When the difficulty of extending the reinforcing sheet 17 differs between the vertical direction and the horizontal direction, it is preferable to use the reinforcing sheet 17 so that the direction in which the reinforcing sheet 17 is less likely to extend is the vertical direction of the column main body 11.

  As a result, it is possible to reduce damage to the lane separator 10 caused by the “elongation” of the column main body 11 caused by being pulled. In particular, since the expansion of the column main body 11 is suppressed by the reinforcing sheet 17, the risk of the reflection sheet 14 breaking due to the extension of the column main body 11 is reduced, and the reflection sheet 14 can be arranged vertically with respect to the column main body 11. It becomes possible.

  The reinforcing sheet 17 may be disposed on the inner surface of the pillar body 11 which is hollow as shown in FIG. 5A or on the outer surface of the pillar body 11 as shown in FIG. Further, a reinforcing sheet 17 may be disposed on the entire column main body 11 as shown in FIG. 6B, and the entire column main body 11 may be reinforced, or a reflective sheet as shown in FIGS. 6A and 6C. The reinforcing sheet 17 may be arranged around the arrangement portion 14 and the reflecting sheet 14 may be emphasized for reinforcement.

  FIG. 7 is a diagram for explaining an example of an embodiment of another lane separator. FIG. 7A shows an example in which oblique lines are provided at a constant rate on the reflective sheet 14, and FIG. 7B shows an example in which a horizontal cut is made in the reflective sheet 14. .

  As shown in FIG. 7A, visibility and alerting can be enhanced by providing the reflective sheet 14 with diagonal lines at a constant rate. The white reflective sheet 14 has the highest reflection performance, but an oblique line is particularly effective when attention is paid (particularly visibility during daytime). The combination of the white and yellow reflecting sheets 14 separated by diagonal lines is also very effective for improving the visibility.

  Further, as shown in FIG. 7B, by placing a horizontal cut in the reflection sheet 14, the load on the reflection sheet 14 due to the expansion and contraction of the column main body 11 can be reduced.

It is a perspective view of a lane separator according to an embodiment of the present invention. It is the front view, top view, and side view of the lane separator according to this embodiment. It is a figure for comparing and explaining the conventional lane separator and the lane separator according to the present embodiment. It is a figure which shows the state in which the column main body of the lane separation mark was stepped on by the tire. It is sectional drawing of the lane separator according to this Embodiment. It is a figure which shows the example of arrangement | positioning of the reinforcement sheet | seat by this Embodiment. It is a figure explaining the example of embodiment of another lane separator. It is a figure which shows the example of the conventional retractable lane separator.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Lane separation mark 11 Column main body 12 Base 13 Rib-shaped protrusion 14 Reflective sheet 15 Groove 16 Projection 17 Reinforcement sheet

Claims (5)

A lane marking comprising a column body capable of elastic deformation and a pedestal attached to the bottom of the column body,
A plurality of rib-like protrusions that are long in the vertical direction are formed on the outer periphery of the column main body,
A lane separation mark characterized in that a reflective material is disposed between the plurality of rib-shaped protrusions. In the lane marking as claimed in claim 1,
The lane separation mark according to claim 1, wherein a shape of a horizontal section of the column main body hollow portion is a flat shape. In the lane marking as claimed in claim 1 or claim 2,
A lane separator having a width larger than the width of the protrusion is provided in a portion of the upper surface of the pedestal where the rib-shaped protrusion hits when the pillar body is tilted. In the lane marking according to any one of claims 1 to 3,
A lane separation mark characterized in that a reinforcing sheet having a greater elongation strength than the material of the column main body is bonded to the inner peripheral surface or outer peripheral surface of the column main body. A lane marking comprising a column body capable of elastic deformation and a pedestal attached to the bottom of the column body,
On the outer peripheral surface of the column main body, a reflecting material whose vertical direction is longer than the outer peripheral direction is provided by being divided into a plurality of pieces in the outer peripheral direction,
A reinforcing sheet having at least a vertical extension strength larger than that of the material of the column main body is bonded to the position of the inner peripheral surface or outer peripheral surface of the column main body corresponding to the range occupied by the reflector. Lane separator.

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