JP2019031774A - Display pole - Google Patents

Abstract

To provide a display pole in which the display functions even when a road is flooded.SOLUTION: A display pole comprises: a base part fixed to a road; a tubular outer cylinder fixedly erected on the base part; and a float housed in the outer cylinder and configured so as to be freely movable in an axial direction. The outer cylinder has an inflow part into which water flows when the road is flooded. The float is protruded in a vertical direction from an upper end of the outer cylinder by buoyancy against water flown into the outer cylinder.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a display pole installed on a road.

  2. Description of the Related Art Conventionally, display poles that are erected on a roadway lane separation band, a boundary part between a roadway and a sidewalk, etc., and clearly indicate the boundary by a fluorescent color or a reflective material, are widely used on the road.

JP 2006-109576 A

  When roads are flooded due to disasters such as floods and tsunamis, it becomes difficult to visually check the road conditions due to muddy water. When moving to an evacuation meeting place etc. on foot in such a situation, the sidewalk has many obstacles such as steps and gutters, and it is dangerous to move on foot, so move on a relatively flat roadway on foot Is preferred. However, if the display pole is submerged due to flooding, the position of the road, in particular, the boundary between the roadway and the sidewalk becomes invisible, making it difficult to evacuate on foot. Therefore, it is necessary to have a mechanism that can clearly display the boundary between the roadway and the sidewalk even during flooding.

  The present invention has been made paying attention to such problems, and an object of the present invention is to provide a display pole whose display functions even when the road is flooded.

  According to an embodiment of the present invention, there is provided a base that is fixed to a road, a cylindrical outer cylinder that is erected and fixed to the base, and a float that is accommodated in the outer cylinder and configured to be movable in the axial direction. The outer cylinder has an inflow portion through which water flows into the interior when the road is flooded, and the float protrudes vertically from the upper end of the outer cylinder by buoyancy with respect to the water that has flowed into the outer cylinder. And

  According to the above aspect, the outer cylinder projects from the upper end of the float when the road is flooded, thereby providing a display pole that can function even when the road is flooded.

It is a schematic sectional drawing explanatory drawing of the display pole by one Embodiment of this invention. It is explanatory drawing at the time of the flooding of the road of the display pole by one Embodiment of this invention. It is explanatory drawing at the time of installing the display pole by one Embodiment of this invention on the road. It is explanatory drawing at the time of installing the display pole by one Embodiment of this invention on the road. It is explanatory drawing which shows the other example of the installation method of the display pole by one Embodiment of this invention. It is explanatory drawing which shows the other example of the installation method of the display pole by one Embodiment of this invention. It is a schematic sectional drawing of the modification of the display pole by one Embodiment of this invention. It is explanatory drawing of the other modification of the display pole by one Embodiment of this invention.

  Hereinafter, a display pole 1 according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic cross-sectional view showing an example of a display pole 1 according to an embodiment of the present invention.

  The display pole 1 includes a base 10, an outer cylinder 20, and a float 30.

  The base 10 is fixed to the surface of a road or a curb on a sidewalk and supports the outer cylinder 20 upright. A lower portion of the base portion 10 has a flange portion 18 in contact with the road surface, and the flange portion 18 of the base portion 10 has a fixing hole 12. The base portion 10 is fixed to the road surface by inserting the bolt 13 installed in the vertical direction on the road surface through the fixing hole 12 and fastening the bolt 13 with the nut 14.

  The outer cylinder 20 is a main body of the display pole 1 and has a hollow cylindrical shape with both sides in the axial direction (vertical direction) open. The outer cylinder 20 is fixed to the base 10 and is supported upright substantially perpendicular to the road surface. The axial length of the outer cylinder 20 is set to a height of, for example, about several tens of cm to 1 m from the road surface. In addition, it does not necessarily need to be a cylinder, and the cross section may be a cylindrical shape such as an ellipse or a rectangle.

  The surface of the outer cylinder 20 is painted or covered with a highly visible fluorescent color (warning color) such as orange, yellow, and yellowish green. In the vicinity of the upper end portion of the outer cylinder 20, a band 25 of a reflective material for improving the visibility by nighttime lighting is applied.

  An outer cylinder side fixing portion 21 having a diameter smaller than that of the entire outer cylinder 20 is provided at the lower end in the axial direction of the outer cylinder 20. The outer cylinder side fixing portion 21 is fixed to a round hole-like base side fixing portion 11 formed in the base portion 10 so that the outer cylinder 20 is supported upright with respect to the base portion 10.

  The outer cylinder side fixing portion 21 has a male screw shape, and the base side fixing portion 11 has a female screw shape corresponding to the male screw of the outer cylinder side fixing portion 21. The outer cylinder 20 is fixed to the base 10 by screwing the male screw of the outer cylinder-side fixing part 21 into the female screw of the base-side fixing part 11.

  The fixing of the outer cylinder 20 and the base 10 is not limited to screwing, but may be another shape. For example, the base side fixing portion 11 is formed corresponding to the shape of the end portion of the outer cylinder side fixing portion 21, and the outer cylinder side fixing portion 21 is fitted to the base side fixing portion 11 so that the outer cylinder 20 is connected to the base portion 10. It may be fixed to.

  A plurality of outer cylinder side water passage holes 22 are formed in the outer cylinder side fixing portion 21 of the outer cylinder 20 over the circumferential direction. A plurality of base side water passage holes 15 are formed in the base side fixing portion 11 of the base portion 10 at positions corresponding to the outer cylinder side water passage holes 22. In a state where the outer cylinder 20 is fixed to the base portion 10, the outer cylinder side water passage hole 22 and the base portion water passage hole 15 communicate with each other, and the outside of the base portion 10 communicates with the inside of the outer cylinder 20. Thereby, when the display pole 1 is submerged, an inflow portion through which water flows into the outer cylinder 20 is configured.

  A rod-like float 30 is provided inside the outer cylinder 20.

  The float 30 has an outer diameter slightly smaller than the inner diameter of the outer cylinder 20 and is accommodated in the outer cylinder 20 so as to be movable in the axial direction. The float 30 is configured to float on water when the road is flooded and water flows into the outer cylinder 20, and to protrude in the vertical direction from the upper end of the outer cylinder 20.

  The float 30 is made of a porous resin (for example, polystyrene) having closed cells. A core rod 31 is inserted through the center of the float 30 in the radial direction over substantially the entire axial direction. The core rod 31 is formed of a hard material (for example, resin, wood, metal, etc.) and prevents the float 30 from being bent or broken. The lower end portion of the float 30 is provided with a flange portion 32 whose diameter is larger than the outer diameter of the float 30. The float 30 may be solid or hollow.

  The upper end portion of the outer cylinder 20 is provided with a stopper portion 23 that is slightly larger than the outer diameter of the float 30 and has a diameter smaller than that of the flange portion 32. The stopper portion 23 is fixed to the upper end portion of the outer cylinder 20 after the float 30 is inserted into the outer cylinder 20. The flange portion 32 and the stopper portion 23 prevent the float 30 from coming off from the outer cylinder 20 when it floats.

  FIG. 2 is an explanatory diagram showing a state of the display pole 1 when the road is flooded according to an embodiment of the present invention.

  When the road is flooded, the display pole 1 is submerged. At this time, water flows into the outer cylinder 20 from the base side water passage hole 15 and the outer cylinder side water passage hole 22. The float 30 provided inside the outer cylinder 20 has a specific gravity smaller than that of water as a whole, and floats on the water flowing into the outer cylinder 20 due to buoyancy against water.

  At this time, the float 30 projects upward from the upper end portion of the outer cylinder 20 in accordance with the water immersion depth of the display pole 1. The surface of the float 30 can be visually recognized immediately by the degree of protrusion of the float 30 by giving a display according to the inundation depth (infiltration depth display part 35). The inundation depth display unit 35 is configured so that, for example, a band made of a fluorescent color or a reflective material at intervals of 10 cm is provided on the surface of the float 30 and the inundation depth can be visually recognized by the number of bands.

  Next, the display of the display pole 1 of the present embodiment configured as described above will be described.

  3A and 3B are explanatory diagrams illustrating an example in which the display pole 1 is installed on a road.

  FIG. 3A shows an example when the display pole 1 is installed on a road. In FIG. 3A, the road shows a non-flooded state. The display pole 1 is installed at a boundary portion between the roadway 100 and the sidewalk 200, for example, and functions as a pedestrian separation mark. The installation of the display pole 1 is not limited to the boundary portion between the roadway 100 and the sidewalk 200, and may be a sign indicating a separation zone or a junction on the roadway 100, or a sign that separates a pedestrian and a bicycle on the sidewalk 200. It is good.

  Since the outer cylinder 20 of the display pole 1 is a warning color such as orange or yellow, the presence of the outer cylinder 20 can be easily confirmed from a vehicle passing through the roadway 100 or a pedestrian walking along the sidewalk 200. Since the reflective material strip 25 is provided near the upper end of the outer cylinder 20, it can be easily confirmed at night by the reflected light emitted by the vehicle light. In this state, the float 30 is held inside the outer cylinder 20.

  Next, a case where the roadway 100 and the sidewalk 200 are flooded will be described.

  When a disaster such as flood or tsunami occurs, it is necessary to move to a safe evacuation site. When the road of the evacuation route to the evacuation meeting place is flooded, since the water is usually muddy water, it is difficult to visually check the situation of the road. It is difficult to determine whether or not it is a situation where it is possible to walk safely when the road is flooded, even if you have land insight and prior information. People who do not have such information, such as commuters, travelers and foreigners who are not residents of the district, are in a situation where it is difficult to ensure further safety.

  Furthermore, in general, if the inundation depth of the flooded road exceeds 20 cm, even a healthy male may be dangerous if there is a flow, and if the inundation depth exceeds 60 cm, walking becomes difficult.

  FIG. 3B shows when the road is flooded. When the road is flooded with muddy water, the road surface condition of the road cannot be seen, so it is difficult to see what the inundation depth is and what is present on the roadway 100 or the sidewalk 200. It becomes.

  In particular, the sidewalk 200 has many obstacles such as a step, a curb 220, a side groove 210, and a side groove lid 211. Therefore, when the sidewalk 200 is flooded, it is difficult to visually recognize the obstacle due to muddy water. These obstacles are dangerous for pedestrians when they have to walk on the flooded road for evacuation.

  On the other hand, it is rare that the vehicle travels on the roadway 100 when the road is flooded. Since the road surface of the roadway 100 is flat so that the vehicle can run smoothly, a pedestrian walks on the roadway 100 instead of the sidewalk 200 when there is a flooded road in the movement route to the evacuation site. It is safer.

  Therefore, when there is a flooded road in the middle of an evacuation route to an evacuation meeting place at the time of a disaster such as a flood, it is important that a pedestrian can visually recognize a place where he can walk safely.

  As described above, the display pole 1 of the present embodiment is accommodated in the base 10 fixed to the road, the cylindrical outer cylinder 20 standing and fixed to the base 10, and the outer cylinder 20, and is movable in the axial direction. The float 30 is configured. The outer cylinder 20 includes an inflow portion (base side water passage hole 15 and outer cylinder side water passage hole 22) through which water flows into the interior when the road is submerged, and the float 30 includes an outer cylinder as shown in FIG. 3B. It protrudes in the vertical direction from the upper end portion of the outer cylinder 20 by buoyancy with respect to the water flowing into the inside 20.

  With such a configuration, the following effects are obtained.

  Since the float 30 protrudes from the outer cylinder 20 of the display pole 1, even if the road is flooded and the entire outer cylinder 20 of the display pole 1 is submerged, the position of the display pole 1 can be visually recognized by the float 30. . Therefore, since the display pole 1 is erected at the boundary between the roadway 100 and the sidewalk 200, the boundary between the roadway 100 and the sidewalk 200 can be visually recognized even when the road is flooded.

  When the float 30 protrudes from the outer cylinder 20 of the display pole 1, the degree of the inundation depth of the road can be roughly grasped by the inundation depth display unit 35 of the float 30.

  Since the boundary between the roadway 100 and the sidewalk 200 and the inundation depth can be visually observed, the road functions as a mark for walking on the roadway 100 with less irregularities than when walking on the sidewalk 200 where obstacles cannot be seen due to muddy water when the road is flooded .

  Since the boundary between the roadway 100 and the sidewalk 200 and the inundation depth can be visually observed, it can be visually observed that the inundation depth is so large that walking is dangerous, and a dangerous route can be clearly indicated.

  The display pole 1 has a simple configuration that simply includes a float 30 that floats due to buoyancy against water inside the outer cylinder 20, and can display the boundary between the roadway 100 and the sidewalk 200 and the inundation depth without greatly increasing the cost. . Thereby, a safe evacuation route can be guided by continuously installing the display pole 1 in the middle of the route to the evacuation meeting place in units of regions and municipalities.

  In this case, a display for guiding the direction and route of the evacuation meeting place may be provided on the surface of the display pole 1. For example, by providing a display such as a map or an arrow around the upper end of the float 30 or the upper part of the outer cylinder 20, the route to the evacuation meeting place can be guided.

  Next, another installation example of the display pole 1 of the present embodiment will be shown.

  4A and 4B are explanatory diagrams of another example of the method for installing the display pole 1 according to the present embodiment, and show an example in which the display pole 1 is installed in an underpass on a road. 4A is a front view of the underpass, and FIG. 4B is a cross-sectional view of the underpass.

  Since the underpass intersects with other roads and tracks, the road surface is lower than other places. For this reason, when the underpass is submerged, the depth of the underpass is greater than that of the surrounding road. When the inundation depth is large, it is dangerous for vehicles and pedestrians to pass.

  Therefore, by installing the display pole 1 in the middle of the underpass entrance of the road and in the middle of the underpass, if the underpass is submerged, prevent the vehicle or pedestrian from entering the underpass. Can be notified. In this case, an indication that the pedestrian or the vehicle is at risk or dangerous may be provided around the upper end of the float 30.

  Next, with reference to FIG. 5, a modified example of the warning display using the display pole 1 of the present embodiment will be described.

  The display pole 1 according to this modification is configured not only to visually check the inundation depth but also to give a warning by light emission or sound by the float 30 protruding according to the inundation depth when the road is flooded.

  The display pole 1 shown in FIG. 5 includes a light emitting element 50, a solar cell 55, and a water immersion sensor 52, and these are electrically connected to the controller 51. When the inundation sensor 52 of the float 30 detects inundation at the time of flooding of the road, the float 30 floats and the controller 51 emits the light emitting element 50 to warn of flooding of the road.

  The solar cell 55 is provided on the upper end surface of the float 30 and generates power using sunlight. The surface of the solar cell 55 may be covered with a translucent cover or the like. The light emitting element 50 is formed of, for example, an LED, and a plurality of light emitting elements 50 are provided in the circumferential direction on the side surface of the upper end portion of the float 30. The submergence sensor 52 is provided at the lower end of the float 30, and when the display pole 1 is submerged and water flows into the outer cylinder 20, this is detected and transmitted to the controller 51. The inundation sensor 52 may be configured to measure the floating height of the float 30 and detect the inundation depth.

  The controller 51 is provided inside the float 30 and is electrically connected to the light emitting element 50, the water immersion sensor 52, and the solar cell 55, respectively. For example, the float 30 is formed in a hollow shape, and these components and cables that electrically connect the components are arranged inside the float 30. The controller 51 causes the light emitting element 50 to emit light when the water immersion sensor 52 detects water immersion. The controller 51 may include a battery that stores electric power generated by the solar battery 55.

  Moreover, you may provide the utterance part 56 which utters an audio | voice at the upper end part of the float 30. When the inundation sensor 52 detects inundation, in addition to the light emission of the light emitting element 50, the controller 51 causes the utterance unit 56 to emit an alarm sound, a sound that the road is flooded, or the like.

  Further, the controller 51 may be configured to change the color or blinking speed of the light emitting element 50 or change the sound of the uttering unit 56 according to the water immersion depth detected by the water immersion sensor 52.

  With such a configuration, it is possible to notify the inundation and the inundation depth not only by display due to the floating of the float 30 but also by light emission or sound when the road is flooded.

  Furthermore, the lower end of the outer cylinder 20 may be provided with a flow rate sensor 57 for detecting the flow rate of water so that an alarm corresponding to the flow rate of the flooded road may be displayed.

  Furthermore, the controller 51 may be provided with a communication function. When the controller 51 detects inundation to the management center of the area or local government using the communication function, the controller 51 transmits information such as the inundation depth. In such a configuration, the management center collects information sent from each display pole 1, and creates an inundation map or the like in which inundation information is added to information on the map of the area or municipality where the display pole 1 is installed. be able to. Thereby, wide area disaster information can be collected by the plurality of display poles 1.

  The controller 51, the light emitting element 50, and the solar cell 55 are arranged inside the upper side of the float 30 that floats according to the water immersion depth of the display pole 1 when the road is flooded. Thereby, since these electric components do not flood, there is little possibility that a communication function will be impaired by flooding. Therefore, the communication function is unlikely to break down, and a more accurate inundation map can be created. Note that the controller 51, the light emitting element 50, the solar cell 55, and the like may be molded with resin to prevent water from entering.

  Moreover, you may comprise so that the controller 51 shown in FIG. 5 may provide the communication function to the display pole 1 installed in the underpass like FIG. 4A and FIG. 4B. In such a configuration, a warning display board is installed in the vicinity of the underpass entrance, and the information sent from the underpass display pole 1 indicates that the underpass is submerged and the underpass submergence depth. It can be displayed on the warning display board. Thereby, the warning which prevents that a pedestrian and a vehicle approach to an underpass can be displayed.

  The embodiment of the present invention has been described above, but the above embodiment is merely one example of application of the present invention, and the technical scope of the present invention is limited to the specific configuration of the above embodiment. is not.

  The display pole 1 includes a base side water passage hole 15 and an outer cylinder side water passage hole 22 in the base 10 and the outer cylinder 20, and is configured to communicate with each other, but water flows into the outer cylinder 20. The configuration is not limited to this. For example, the inflow portion may be configured by penetrating a hole in the side surface of the outer cylinder 20 in the circumferential direction. The position of this hole can be arrange | positioned above the base 10 (location shown by A of FIG. 1), for example.

  In addition, the base 10 is configured so that the base-side water-passing hole 15 of the base 10 communicates with the opening at the lower end of the outer cylinder 20 without the outer-tube-side water-passing hole 22 of the outer cylinder 20. An inflow portion through which water flows into the outer cylinder 20 may be configured by water flowing into the water passage hole 15.

  Further, as shown in FIG. 6, the entire outer cylinder 20 is made of a material that easily permeates water, such as a material having a large number of holes or a mesh material, and water enters the inside of the outer cylinder 20 during water immersion. The inflow part may be comprised by flowing in.

  Furthermore, an inflow portion constituted by a hole penetrating the side surface of the outer cylinder 20 may be combined with an inflow portion constituted by the base side water passage hole 15 and the outer cylinder side water passage hole 222 shown in FIG. You may combine the inflow part which the outer cylinder 20 used as the raw material which osmose | permeates water.

DESCRIPTION OF SYMBOLS 1 Display pole 10 Base 11 Base side fixing | fixed part 12 Fixing hole 13 Bolt 14 Nut 15 Base part side water passage hole 18 Flange part 20 Outer cylinder 21 Outer cylinder side fixing part 22 Outer cylinder side water passage hole 23 Stopper part 30 Float 31 Core rod 32 Flange part 50 Light emitting element 51 Controller 52 Submerged sensor 55 Solar cell 56 Voice part 57 Flow rate sensor

Claims (6)

A base fixed to the road;
A cylindrical outer cylinder that is erected and fixed to the base;
A float housed in the outer cylinder and configured to be movable in the axial direction;
The outer cylinder includes an inflow portion through which water flows into the interior when the road is flooded,
The display pole according to claim 1, wherein the float protrudes in a vertical direction from an upper end portion of the outer cylinder by buoyancy with respect to water flowing into the outer cylinder. The base includes a base side water passage hole into which water flows when the road is submerged.
The display pole according to claim 1, wherein the inflow portion and the base side water passage hole communicate with each other in a state where the outer cylinder is fixed to the base portion.   The display pole according to claim 1, wherein the inflow portion is configured by a hole penetrating a side surface of the outer cylinder.   The display pole according to any one of claims 1 to 3, wherein the inflow portion is configured by the outer cylinder being made of a material that permeates water. The lower end portion of the float has a flange portion that is larger than the outer diameter of the float,
The display pole according to any one of claims 1 to 4, wherein a stopper portion having a diameter smaller than that of the flange portion is provided at an upper end portion of the outer cylinder.   The display pole according to any one of claims 1 to 5, wherein the float includes a water immersion depth display unit that displays a water immersion depth at a portion protruding from the outer cylinder.

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