JP2015206170A - Traffic lane separation method using delineator sign pole, and delineator sign pole - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a traffic lane separation method, using a delineator sign pole, that can improve visibility of a suppression bar and improve adjacent-lane-entry suppression effect even when a driver is at a long separation distance from the delineator sign pole, and the delineator sign pole.SOLUTION: In a lane separation method of performing lane separation by installing a plurality of delineator sign poles 1, each having a suppression bar 13 formed at an upper part of a sign pole body to project to one or both sides in a lateral direction, at intervals along a travel direction of a road, respective suppression bars 13 of the delineator sign poles 1 are protruded obliquely to a direction parallel with the travel direction of the road to face the travel direction. Each suppression bar 13 has a base part 131 which is formed as a different body from the sign pole body and fitted to an upper end part of the sign pole body, and a bar part 132 protruded from the base part 131, and the base part 131 is provided to rotate around the axis of the sign pole body and to be fixed at a predetermined rotational angel θ.

Description

  The present invention relates to a lane separation method and a line-of-sight guidance sign column using a line-of-sight guidance sign column having a detent bar protruding in the lateral direction on the upper part of the sign post body, and in particular, to improve the visibility of the deterrence bar, such as a vehicle The present invention relates to a lane separation method using a line-of-sight guidance sign column and a line-of-sight guidance sign column having improved lane protrusion suppression effect.

  As a line-of-sight guide sign column that separates the lane by installing it on the road surface such as the center line of the roadway, the median strip, the boundary part of the sidewalk, etc., to prevent the crossing of vehicles and pedestrians, A T-shaped gaze guidance sign column having a deterrent bar (also referred to as a beam) protruding in the lateral direction at the top is known (Patent Document 1).

  Conventionally, when a plurality of line-of-sight guide marker columns are installed side by side, the respective restraining bars are arranged so as to be continuous in a straight line. As a result, a psychological protrusion suppression effect is given to drivers and pedestrians.

Japanese Patent No. 4180037

  When lane separation is performed by installing such line-of-sight guidance sign pillars along the center line of the roadway, the line of sight when observed from the driver of the vehicle traveling on the roadway is arranged in a straight line parallel to the lane. Each deterrence bar crosses diagonally. The suppression bar at this time is observed by the driver to be shorter than the actual length of the suppression bar, and the visibility of the suppression bar is reduced.

  In particular, as the line-of-sight guidance sign column with a longer separation distance along the traveling direction from the driver, the line of sight as viewed from the driver intersects the deterrence bar at an acute angle. For this reason, as the line-of-sight guide sign column located at a middle distance to a long distance from the driver, the visibility of the deterrence bar decreases, and the psychological protrusion deterring effect becomes lower than the short distance. This is particularly noticeable when performing lane separation on highways. This is because the driver's line of sight on the highway is inevitably far away.

  In this case, it is necessary to shorten the interval between the line-of-sight guidance sign columns and bring adjacent deterrence bars close to each other. However, this requires a large number of installations per predetermined distance.

  Therefore, the present invention provides a lane separation method using a gaze guidance sign column that can improve the visibility of the deterrence bar and improve the protrusion depressing effect even with a gaze guidance sign column that is far away from the driver. It is another object of the present invention to provide a gaze guidance sign column that can be suitably used for this.

  Other problems of the present invention will become apparent from the following description.

1. Lane separation is achieved by installing a plurality of line-of-sight guidance sign pillars having a deterrent bar formed so as to project in one or both of the lateral directions on the upper part of the sign pillar body at intervals along the road traveling direction. In the lane separation method using the gaze guidance sign column to be performed,
A line of sight characterized in that an extension direction of the deterrence bar of each of the line-of-sight guide sign columns is inclined in a direction in which the deterrence bar faces the traveling direction with respect to a direction parallel to the traveling direction of the road. Lane separation method using guidance sign pillars.

  2. 2. The lane separation method using the gaze guidance sign column according to claim 1, wherein a block is installed on a road surface between the gaze guidance sign columns adjacent to each other.

  3. 3. The lane separation method using the line-of-sight guidance sign column according to claim 1 or 2, wherein a display unit indicating the traveling direction of the road is provided on the deterrence bar.

  4). 4. A lane separation method using the line-of-sight guidance sign pillar according to the above 1, 2 or 3, wherein a vent hole is provided in the deterrence bar.

5. In the line-of-sight guidance marker column having a deterrent bar formed so as to protrude in one or both of the lateral directions on the upper part of the marker column body,
The deterrence bar is formed separately from the sign post body, has a base attached to the upper end of the sign post main body, and a bar portion protruding from the base,
The line-of-sight guidance marker column, wherein the base portion is provided so as to be rotatable around an axis of the marker column body and to be fixed at a predetermined rotation angle.

6). A polygonal column protrudes from one of the upper end surface of the marker column main body and the surface of the base portion of the restraining bar that faces the upper end surface of the marker column main body, and the other surface is provided with the polygonal column. Having a polygonal recess in plan view to engage,
When the restraining bar is attached to the upper end of the sign post body, the rotation angle around the axis of the sign post body is defined by the engagement of the polygonal pillar and the recess. 6. The line-of-sight guidance marker column as described in 5 above.

7). Either one of the upper end portion of the marker column main body and the base portion of the deterrent bar has a plurality of notch portions arranged around the axis of the marker column main body, and the other engages with the notch portion. Has a protruding part,
6. The line-of-sight guidance marker according to claim 5, wherein the rotation angle of the marker column main body about an axis is defined by the protrusion part engaging with one of the notch parts. Pillar.

  8). 8. The line-of-sight guidance sign column according to claim 5, 6 or 7, wherein a display portion indicating a traveling direction of the road is provided in the bar portion of the suppression bar.

  9. The line-of-sight guidance marker column according to any one of 5 to 8 above, wherein an air vent hole is provided in the bar portion of the suppression bar.

  According to the present invention, a lane separation method using a gaze guidance sign column that can improve the visibility of the deterrence bar and improve the overhang deterrence effect even with a gaze guidance sign column that is far away from the driver. In addition, it is possible to provide a line-of-sight guidance sign column that can be suitably used for this.

(A) is a front view which shows 1st Embodiment of the gaze guidance sign pillar used for the lane separation method which concerns on this invention, (b) is the top view Sectional drawing which shows an example of the road edge attachment structure of a gaze guidance sign pillar Sectional drawing which decomposes | disassembles and shows the structure of the upper end part of a gaze guidance sign pillar The top view which shows the installation aspect of the gaze guidance sign pillar in the lane separation method which concerns on this invention (A) is a figure which shows the example of installation of the gaze guidance sign pillar which applied the lane separation method which concerns on this invention, (b) is a figure which shows the example of installation of the conventional gaze guidance sign pillar (A) is the example which applied the lane separation method which concerns on this invention, (b) is a top view which respectively shows the example which applied the conventional lane separation method (A)-(c) is a top view explaining the relationship between the length of a suppression bar and lane width The figure which shows the state which installed the block between the gaze guidance sign pillars in the lane separation method which concerns on this invention The front view which shows 2nd Embodiment of the gaze guidance sign pillar used for the lane separation method which concerns on this invention. The front view which shows 3rd Embodiment of the gaze guidance sign pillar used for the lane separation method which concerns on this invention. The front view which shows 4th Embodiment of the gaze guidance sign pillar used for the lane separation method which concerns on this invention. The front view which shows 5th Embodiment of the gaze guidance sign pillar used for the lane separation method which concerns on this invention. (A) is a top view which shows 6th Embodiment of the line-of-sight guidance sign pillar used for the lane separation method which concerns on this invention, (b) is 7th of the line-of-sight guidance sign pillar used for the lane separation method concerning this invention. The top view which shows the embodiment of The other example of the structure for inclining the protrusion direction of a suppression bar | burr around the axis | shaft of a marker pillar main body is shown, (a) is sectional drawing which decomposes | disassembles and shows the structure of the upper end part of a gaze guidance marker pillar, (b) Plan view of the sign post body FIG. 6 shows still another example of a structure for inclining the protruding direction of the deterrence bar around the axis of the sign post body, (a) is an exploded cross-sectional view showing the structure of the upper end portion of the line-of-sight guide sign post, and (b). Is a plan view of the sign post body

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

  1A and 1B show a first embodiment of a gaze guidance sign column used in a lane separation method according to the present invention, where FIG. 1A is a front view, FIG. 1B is a plan view, and FIG. 2 is a gaze guidance sign. FIG. 3 is an exploded sectional view showing the structure of the upper end portion of the line-of-sight guidance sign column.

  The line-of-sight guide sign post 1 has a base 12 having a diameter larger than that of the sign post main body 11 at the lower end of the cylindrical sign post main body 11 and a deterrence bar 13 at the upper end of the sign post main body 11. And has a T-shape as a whole.

  The sign post body 11 is generally formed of a flexible polyurethane, such as polyurethane elastomer, in the form of a hollow cylinder, and a driver, a pedestrian or the like (hereinafter referred to as a driver) is noted on the outer peripheral surface thereof. A reflector 14 made of a retroreflective sheet or the like for arousing is attached.

  As shown in FIG. 2, the lower end portion of the marker column main body 11 is a solid core portion 111, and the head portion side of the fixing bolt 112 is embedded in the core portion 111. The screw portion side of the fixing bolt 112 protrudes from the lower end surface of the sign post body 11. In the sign post body 11, the screw portion of the fixing bolt 112 protruding from the lower end portion is embedded in the road surface GL in a state where the core portion 111 is accommodated in the recess 121 formed in the pedestal 12. It is installed on the road surface GL by being screwed into the female screw.

  As shown in FIG. 3, the restraining bar 13 extends in the lateral direction by a predetermined length from both the base 131 having a cylindrical cap structure whose upper end is closed and the opposite positions of the outer peripheral surface of the base 131. And two flat bar portions 132 formed so as to protrude. The deterrence bar 13 is formed separately from the sign post body 11.

  As a material constituting the deterrence bar 13, for example, a synthetic resin such as polyethylene can be used in addition to the same polyurethane as the marker column body 11. When the overhang length of the bar portion 132 is relatively short, a relatively flexible synthetic resin having a hardness (JIS K6253: 1997) DuroA (instantaneous) of about 95 can be used. When the length is relatively long, it is preferable to use a relatively hard synthetic resin having a hardness DuroA (instantaneous) of 98 or more to prevent bending.

  The deterrence bar 13 is formed so that the inner diameter of the base 131 is the same as or slightly larger than the outer diameter of the marker column main body 11 and covers the outer periphery of the upper end of the marker column main body 11. At the time of attachment, the restraining bar 13 can be rotated around the axis of the sign post body 11, and is fixed by an adhesive with the bar portion 132 oriented in an arbitrary direction.

  Next, an example of the lane separation method according to the present invention in which the lane separation is performed by installing a plurality of the line-of-sight guide sign pillars 1 at intervals along the road traveling direction will be described with reference to FIGS. It explains using.

  In the present invention, a lane is a line formed on a road surface such as a motorway, a bicycle path, a sidewalk, etc., for separating or regulating the traveling direction and flow of vehicles and pedestrians. Specific examples include a road center line, a line indicating a roadside zone, a line indicating a merging or splitting of a plurality of roads, a line formed on a boundary line between a motorway, a bicycle path, and a sidewalk. It is done.

  In the lane separation method illustrated in FIG. 4 to FIG. 6, the protruding direction of the bar portion 132 of each deterrence bar 13 of the line-of-sight guidance sign column 1 is indicated by a direction parallel to the traveling direction of the road (shown by a broken line in FIG. 4). Direction), the restraining bar 13 is inclined in a direction facing the traveling direction.

  Here, the traveling direction of the road is a direction in which a vehicle such as an automobile or a two-wheeled vehicle or a pedestrian travels. Accordingly, the deterrence bar 13 is arranged in a direction parallel to the road traveling direction so that the side surface of the bar part 132 responsible for the overhang deterrence function faces a vehicle or a pedestrian traveling along the road traveling direction. On the other hand, it is attached in a state of being rotated by a predetermined angle around the axis of the sign post body 11.

  FIG. 4 shows an example in which the inclination angle θ with respect to the traveling direction of the road of each deterrence bar 132 is set to be the same in each line-of-sight guidance sign column 1. 1 is not necessarily the same.

  Reference sign CL in the figure is a lane formed on the road with a predetermined width W and parallel to the traveling direction of the road. Here, the center line of the road whose running direction is opposite on both sides of the lane CL is illustrated. Each line-of-sight guidance sign column 1 is installed along this lane CL.

  In the conventional lane separation method in which a plurality of line-of-sight guide sign columns are installed, the protruding direction of the bar portion 132 of each deterrence bar 13 is parallel to the road traveling direction (lane CL) as shown by a broken line in FIG. By being oriented so that each of the restraining bars 13 is aligned, the restraining bars 13 are arranged so as to be continuous in a straight line. However, in the present invention, since it is installed to be inclined with respect to the traveling direction of the road, as shown in FIG. It will come to face a little. For this reason, the visibility of each suppression bar 13 is improved as compared with the conventional method shown in FIG. 5B in which the extension direction of the suppression bar 13 is oriented along the road traveling direction.

  This will be further described with reference to FIG. (A) is an example which applied the lane separation method concerning the present invention, and (b) is a top view showing an example which applied the conventional lane separation method, respectively. In (a) and (b), the length of each deterrence bar 13 of the line-of-sight guidance sign column 1 and the interval between the adjacent line-of-sight label column 1 are the same.

  When each of the line-of-sight guide sign pillars 1 installed along the lane CL is observed from a driver A traveling on the road along the lane CL, the line of sight from the driver A, as shown by an arrow line, It intersects at an acute angle with the side surface of each deterrent bar 13. At this time, in the case of the lane separation method according to the present invention shown in (a), the bar portion 132 of each restraining bar 13 is inclined so as to face the driver or the like A with respect to the traveling direction of the road. The crossing angles θ1 and θ2 at which the lines of sight a1 and a2 from the driver A or the like indicated by the lines intersect the bar portion 132 are the deterrence bars 13 of the line-of-sight guidance sign column 1 that are at the same distance in the conventional lane separation method shown in FIG. Is larger than the crossing angles θ11 and θ12 with the lines of sight a11 and a12.

  In particular, the effect becomes more remarkable as the distance from the driver A of the line-of-sight guidance sign column 1 becomes longer. As is clear from the comparison of the crossing angles θ2 and θ12 with the deterrence bar 13 of the line-of-sight guidance sign column 1 installed at a long distance from the driver A or the like, the deterrence bar 13 is inclined farther as in the present invention. The crossing angle θ2 between the deterrence bar 13 of the line-of-sight guidance sign column 1 installed on the line of sight and the line of sight a2 from the driver A or the like is larger than the crossing angle θ12 of the conventional line of sight a12. That is, when observed from a driver A or the like, the deterrence bar 13 in the present invention is visually recognized longer in the lateral direction than in the past. Therefore, the visibility of the suppression bar 13 is improved accordingly. Thereby, the protrusion suppression effect by the lane separation method which installed multiple line-of-sight guidance sign pillars 1 can be improved more.

  Further, in the conventional case, the line of sight a11 from the driver A or the like may break out between the adjacent deterrence bars 13 and 13 by slipping backward from between the respective deterrence bars 13 and 13 of the adjacent line-of-sight guidance sign column 1. It will be visually recognized. In this case, it is necessary to shorten the installation interval between the adjacent line-of-sight guidance sign columns 1 or to increase the length of each deterrence bar 13, but there is a problem that both lead to an increase in cost.

  On the other hand, in the case of the present invention, even if the installation interval of the line-of-sight guidance sign column 1 and the overhang length of each deterrence bar 13 are the same as the conventional one, the adjacent deterrence bars 13 and 13 are closer than the conventional case. To be visually recognized. In particular, as the distance from the driver A becomes larger, the end portions of the adjacent deterrence bars 13 and 13 are visually recognized so as to overlap each other. For this reason, the deterrence bar 13 of each line-of-sight guidance sign column 1 is visually recognized as if it is a fence or a wall that continues along the lane CL, and the psychological protrusion suppression effect given to the driver or the like can be increased more than before. it can.

  This will be explained by a specific installation example. When the installation interval of the line-of-sight guidance sign column 1 is 2.5 m and the overhang length (full length) of the deterrence bar 13 is 750 mm, the distance between the adjacent deterrence bars 13 and 13 in the related art. Assuming that the apparent gap length is 100%, the apparent gap between the adjacent deterrence bars 13 and 13 in the present invention can be narrowed to 60%. In this case, since the distance from the driver or the like exceeds 10 m, the gap between the adjacent deterrence bars 13 and 13 apparently becomes almost zero and can be visually recognized as a continuous fence or wall. .

  Moreover, according to this invention, in order to make the suppression bar 13 visually recognizable like a continuous fence or wall, the installation interval of the line-of-sight guidance sign column 1 is shortened or the overhanging length of the suppression bar 13 is increased. There is no need to increase costs.

  The inclination angle of the deterrence bar 13 with respect to the traveling direction of the road is appropriately determined depending on the relationship between the width of the lane CL and the length of the deterrence bar 13 so that each bar portion 132 of the deterrence bar 13 does not protrude from the lane CL to the road side. Can be determined. For example, even when the lane CL has the same width, as shown in FIG. 7A, when the overhanging length of the restraining bar 13 is short, the inclination angle θ with respect to the road traveling direction can be made relatively large. As the overhang length of the deterrence bar 13 becomes longer, the inclination angle θ needs to be reduced as shown in (b) and (c).

  For example, when the lane CL is 800 mm wide and the overhang length (full length) of the deterrent bar 13 is 750 mm, the inclination angle θ with respect to the road traveling direction can be inclined up to 90 °. Similarly, it can be inclined up to 65 ° for 850 mm, 60 ° for 900 mm, 55 ° for 950 mm, and 50 ° for 1000 mm. The specific inclination angle θ can be appropriately determined within the range up to the maximum value.

  In the present invention, a block 2 may be installed on the road surface between adjacent line-of-sight guidance sign columns 1 and 1 as shown in FIG. Since both the upper restraining bar 13 and the lower block 2 can provide a psychological protrusion restraining effect to the driver or the like, this is a preferred embodiment in the present invention.

  The block 2 may use a resin block in addition to a general concrete block. A reflective material 21 such as a retroreflective sheet may be provided on the surface of the block 2, preferably the side facing the road.

  9 to 13 are front views showing second to seventh embodiments of the line-of-sight guidance sign column. Since the site | part of the same code | symbol as the gaze guidance label | pillar column shown in 1st Embodiment has shown the site | part of the same structure, those description uses the description of 1st Embodiment, and abbreviate | omits here.

  The line-of-sight guidance sign column 1 according to the second embodiment shown in FIG. 9 is provided with a display unit 133 indicating the traveling direction of the road on the side surface of the bar unit 132 of the deterrence bar 13. Here, the display unit 133 exemplifies a display instructing the traveling direction which is the left direction in the figure by arranging a plurality of the ones formed in an arrow shape by a reflecting material such as a retroreflective sheet. As a result, the traveling direction can be visually recognized by a driver or the like.

  The display unit 133 can be provided on one side or both sides of the bar unit 132. When the traveling direction faces in the opposite direction across the line-of-sight guide sign column 1 such as a center line or the like, the front and back surfaces facing the driver or the like are respectively indicated to indicate the traveling direction in the opposite direction. By providing the portion 133, it is possible to make the traveling direction visually recognized by a driver or the like traveling in each traveling lane.

  Further, when the line-of-sight guidance sign pillar 1 is installed at a branching part to the entrance of an expressway service area or the like, for example, the front and back surfaces facing the driver or the like are respectively instructed to indicate the traveling direction in the same direction. By providing the display unit 133 in the vehicle, it is possible to make both the driver traveling in the main line and the deceleration lane visually recognize the traveling direction. In recent years, in particular, efforts have been made to prevent reverse running from the entrance / exit of service areas. Thus, indicating the direction of travel using the deterrence bar 13 configured with good visibility in this way indicates reverse running. It is also effective for countermeasures.

  In the line-of-sight guidance marker column 1 according to the third embodiment shown in FIG. 10, an air vent hole 134 is provided in the bar portion 132 of the suppression bar 13. Thereby, the wind load of the suppression bar 13 can be reduced. When the deterrence bar 13 receives wind and the sign post body 11 tilts, the visibility is reduced. Moreover, there is a possibility of protruding to the road side where the vehicle or the like is traveling. By reducing the wind load by the wind vent hole 134, the inclination of the sign post body 11 can be suppressed.

As a result of experiments, the present inventor confirmed that the wind load at a wind speed of 40 m / sec in a deterrence bar (projection area of deterrence bar: 0.075 m ² ) not provided with a vent hole as shown in FIG. On the other hand, the bar with the same overhang length provided with the air vent hole (projection area 0.047 m ² excluding the air vent hole) was 56 N, and the wind load of 36% could be reduced.

  In FIG. 10, four rectangular vent holes 134 are formed in each bar portion 134, but the shape and number of the vent holes 134 are arbitrary depending on the overhang length and area of the bar portion 132. Can be set to

  In the line-of-sight guidance marker column 1 according to the fourth embodiment shown in FIG. 11, the bar portion 132 of the deterrence bar 13 is provided with both a display portion 133 indicating the traveling direction and an air vent hole 134. As a result, both the effect of allowing the driver or the like to visually recognize the traveling direction and the effect of reducing the wind load of the deterrent bar 13 can be achieved.

  For example, when only the single side of the bar portion 132 of the deterrent bar 13 needs to be visually recognized, such as when the line-of-sight guide sign post 1 is installed on a roadside belt, the line of sight according to the fifth embodiment shown in FIG. As in the case of the guide sign post 1, the air vent hole 134 may be formed in an arrow shape so that the air vent hole 134 also serves as a display unit indicating the traveling direction. FIG. 12 shows an example in which a reflective material such as a retroreflective sheet is provided on the entire side surface of the bar portion 132 other than the air vent hole 134. However, when the reflective material is provided on the suppression bar 13, the bar portion A part of the side surface of 132 may be used.

  The deterrence bar 13 shown in each of the above embodiments is formed so that the bar part 132 projects in a straight line from the base part 131 in the lateral direction. However, the line-of-sight guidance sign according to the sixth embodiment shown in FIG. Like the pillar 1, the restraining bar 13 may have a shape in which each bar portion 132 protruding from the base portion 131 is bent in a dogleg shape in the opposite direction from the middle of the protruding direction.

  Further, as in the line-of-sight guide marker column 1 according to the seventh embodiment shown in FIG. 13B, the deterrence bar 13 has the bar portions 132 protruding from the base portion 131 gently curved in opposite directions. It may be a shape.

  Furthermore, in the above embodiment, the bar portion 132 of the suppression bar 13 is formed so as to protrude from the base portion 131 in both directions opposite to each other in the lateral direction, but is not limited thereto. For example, when it is only necessary to visually recognize only one side of the bar portion 132 of the deterrent bar 13 as in the case where the line-of-sight guidance sign column 1 is installed on the roadside belt of the road, only one side in the lateral direction of the base portion 131 is not shown. It may be formed so as to overhang.

  Although not shown, the bar portion 132 of the suppression bar 13 is not limited to a flat plate shape, and may be a round bar shape or a square bar shape.

  FIG. 14 shows another example of a structure for inclining the protruding direction of the deterrent bar 13 around the axis of the marker column main body 11. (A) is sectional drawing which decomposes | disassembles and shows the structure of the upper end part of a gaze guidance sign pillar, (b) is a top view of a sign pillar main body.

  A head 16 is fixed to the upper end of the sign post body 11 so as to cover the hollow sign post body 11. And the convex part 161 of polygonal column shape is protrudingly provided by the upper surface of the head 16 which is the upper end surface of the label | marker pillar main body 11. As shown in FIG.

  On the other hand, when attached to the base 131 of the deterrent bar 13 so as to cover the upper end of the sign post body 11, a portion that comes into contact with the upper end surface of the sign post main body 11 (upper face of the convex portion 161), that is, the base 131. On the ceiling inner wall surface 135, a polygonal concave portion 136 that can be engaged by fitting with the convex portion 161 is formed. Here, the convex portion 161 is a regular decagonal column and the planar shape of the concave portion 136 is a regular decagonal shape, but is not particularly limited.

  According to this structure, when the base 131 of the restraining bar 13 is attached so as to cover the upper end of the sign post body 11, the concave 136 formed in the base 131 and the convex projecting from the upper end surface of the sign post main body 11 are provided. Part 161 is engaged. At this time, the rotation angle of the suppression bar 13 is changed by the number of polygons by slightly rotating the suppression bar 13 around the axis of the marker column body 11 to change the engagement state between the convex portion 161 and the concave portion 136. Can be adjusted.

  Accordingly, when the deterrence bar 13 is attached to the sign post body 11 installed on the road surface, the depressing bar 13 is rotated around the axis of the sign post main body 11 so that the convex portion 161 and the concave portion 136 engage with each other. By changing the above, it is possible to arbitrarily determine the protruding direction of the bar portion 132 of the deterrence bar 13 with respect to the traveling direction of the road. Here, since the convex portion 161 is a regular decagonal column, the restraining bar 13 can be easily set to rotate around the axis of the marker column main body 11 by 36 ° to have a desired rotation angle.

  The deterrent bar 13 whose rotation angle is determined in this way may be fixed by adhering to the upper end portion of the sign post body 11 with an adhesive, or a through hole 137 is formed in the base 131 as shown in the figure. At the same time, a through-hole 162 is also formed in the head 16, and the screw 17 is inserted through the base 131 from above to be fixed by screwing into a nut 163 attached to the head 16. Good. When fixing using the screw 17, the rotation angle of the deterrence bar 13 after installation can be easily changed. Further, it is possible to replace only the suppression bar 13.

  In this example of the line-of-sight guidance marker column 1, instead of forming the convex portion 161 on the marker column main body 11 side and forming the concave portion 136 on the base 131 side, a concave portion is formed on the marker column main body 11 side, and the base 131 A convex portion may be formed on the side.

  FIG. 15 shows still another example of the structure for inclining the protruding direction of the deterring bar 13 around the axis of the marker column main body 11. (A) is sectional drawing which decomposes | disassembles and shows the structure of the upper end part of a gaze guidance sign pillar, (b) is a top view of a sign pillar main body.

  In this line-of-sight guidance sign column 1, a plurality of grooves 164 arranged at predetermined intervals around the axis of the sign post body 11 are formed on the upper surface of the head 16 fixed to the upper end of the sign post body 11. .

  On the other hand, when attached to the base 131 of the deterrent bar 13 so as to cover the upper end of the sign post body 11, a portion that comes into contact with the upper end face (the upper face of the head 16) of the sign post body 11, that is, the base 131. Only one protrusion 138 that can engage with the groove 164 is formed on the ceiling inner wall surface 135.

  According to this structure, when the base 131 of the restraining bar 13 is attached so as to cover the upper end of the sign post main body 11, one convex portion 138 formed on the base 131 is formed on the upper end surface of the sign post main body 11. Engage with any of the groove portions 164 formed. At this time, the rotation angle of the suppression bar 13 is adjusted by the number of the groove portions 164 by slightly rotating the suppression bar 13 around the axis of the marker column main body 11 and selecting the groove portion 164 with which the convex portion 138 is engaged. Can do.

  Therefore, when attaching the deterrence bar 13 to the sign post body 11 installed on the road surface, the depressing bar 13 is rotated around the axis of the sign post main body 11 and the position of the groove 164 with which the convex part 138 engages is selected. Thus, the overhanging direction of the bar portion 132 of the deterrence bar 13 with respect to the road traveling direction can be arbitrarily determined. Here, since 20 grooves 164 are arranged along the outer periphery of the upper surface of the head 16, the restraining bar 13 can be easily rotated around the axis of the sign post body 11 by 18 ° so that a desired rotation angle is obtained. Can be set to

  The deterrence bar 13 may also be fixed by bonding to the upper end portion of the marker column main body 11 with an adhesive, or may be fixed using screws 17 as in the case of FIG.

  Also in this example of the line-of-sight guide marker column 1, instead of forming the groove 164 on the marker column main body 11 side and forming the convex portion 138 on the base 131 side, a convex portion is formed on the marker column main body 11 side, A groove may be formed on the 131 side.

1: Line-of-sight guide marker 11: Marker column body 111: Core part 112: Fixing bolt 12: Pedestal 121: Recess 13: Deterrent bar 131: Base part 132: Bar part 133: Display part 134: Ventilation hole 135: In the ceiling Wall surface 136: Concave portion 137: Through hole 138: Convex portion 14: Reflective material 15: Embedding leg 16: Head 161: Convex portion 162: Through hole 163: Nut 164: Groove portion 2: Block 21: Reflective material A: Driver, etc. a1, a2, a11, a12: line of sight CL: lane GL: road surface

Claims (9)

Lane separation is achieved by installing a plurality of line-of-sight guidance sign pillars having a deterrent bar formed so as to project in one or both of the lateral directions on the upper part of the sign pillar body at intervals along the road traveling direction. In the lane separation method using the gaze guidance sign column to be performed,
A line of sight characterized in that an extension direction of the deterrence bar of each of the line-of-sight guide sign columns is inclined in a direction in which the deterrence bar faces the traveling direction with respect to a direction parallel to the traveling direction of the road. Lane separation method using guidance sign pillars.   The lane separation method using the line-of-sight guidance sign column according to claim 1, wherein a block is installed on a road surface between the adjacent line-of-sight guidance sign columns.   The lane separation method using the line-of-sight guidance sign column according to claim 1 or 2, wherein a display unit indicating a traveling direction of the road is provided on the deterrence bar.   The lane separation method using the line-of-sight guidance sign column according to claim 1, 2 or 3, wherein an air vent hole is provided in the restraining bar. In the line-of-sight guidance marker column having a deterrent bar formed so as to protrude in one or both of the lateral directions on the upper part of the marker column body,
The deterrence bar is formed separately from the sign post body, has a base attached to the upper end of the sign post main body, and a bar portion protruding from the base,
The line-of-sight guidance marker column, wherein the base portion is provided so as to be rotatable around an axis of the marker column body and to be fixed at a predetermined rotation angle. A polygonal column protrudes from one of the upper end surface of the marker column main body and the surface of the base portion of the restraining bar that faces the upper end surface of the marker column main body, and the other surface is provided with the polygonal column. Having a polygonal recess in plan view to engage,
When the restraining bar is attached to the upper end of the sign post body, the rotation angle around the axis of the sign post body is defined by the engagement of the polygonal pillar and the recess. 6. The line-of-sight guidance sign column according to claim 5, Either one of the upper end portion of the marker column main body and the base portion of the deterrent bar has a plurality of notch portions arranged around the axis of the marker column main body, and the other engages with the notch portion. Has a protruding part,
6. The line-of-sight guidance according to claim 5, wherein the rotation angle around the axis of the marker column main body is defined by engaging the protrusion with any one of the notches. Signpost.   8. The line-of-sight guidance sign column according to claim 5, 6 or 7, wherein a display portion indicating a traveling direction of the road is provided in the bar portion of the suppression bar.   The line-of-sight guidance marker column according to any one of claims 5 to 8, wherein an air vent hole is provided in the bar portion of the suppression bar.

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