JP6626286B2 - Lifting pole device - Google Patents

Description

  The present invention relates to a lifting pole device, for example, installed at a median strip of a road or at a junction of a highway to control the flow of vehicles, or installed in an unmanned parking lot to prevent unauthorized release of vehicles. For a lifting pole device.

  2. Description of the Related Art Conventionally, a resin pole has been used to be installed at a median strip of a road or at a junction of an expressway to control the flow of a vehicle. This is a pole made of orange or red resin to stand out. Such a pole is fixed to the road with an anchor bolt or the like, and cannot be easily removed. In addition, in an unmanned parking lot or the like, an elevator pole device is installed as a car stop to prevent unauthorized parking of a parked vehicle. This lifting pole device includes a pole for preventing unauthorized release of a vehicle and a lifting mechanism for lifting and lowering the pole (see Patent Documents 1 and 2).

  A conventional lifting pole device installed in an unmanned parking lot includes a lifting pole, a guide roller attached to the lifting pole, and an embedding case that houses the lifting pole and the guide roller. The guide roller rolls on the inner wall of the embedding case to guide the elevating pole up and down. The lifting pole device includes a motor for driving the lifting pole and a geared wire. A rotational force is applied to the geared wire, and the rotational force is transmitted to the chain sprocket and the rotating chain, so that the lifting pole moves up and down.

JP-A-8-128020 JP-A-8-128021

However, the lifting pole device according to the above prior art document has the following problems for structural reasons.
(1) The clearance adjustment between the embedding case and the guide roller is complicated.
(2) Repair of an elevating pole at the time of abnormality is complicated.
(3) Laying the embedded case is complicated.
(4) The structure for waterproof measures is complicated.

  Hereinafter, the reasons for the above problems will be described. First, regarding the clearance adjustment of (1), in the prior art lifting pole apparatus, the guide roller is directly attached to the pole. The embedding case is formed of a hollow quadrangular prism, and the guide roller rolls on four inner walls of the embedding case. Here, there is a gap between the lifting pole and the embedding case, and a guide roller is installed in this gap. For this reason, unless the positions of the guide rollers are properly adjusted, there is a possibility that the guide rollers in the four directions cannot be properly brought into contact with the embedding case. That is, there is a case where the guide rollers in three directions contact the embedding case, but the remaining guide rollers do not contact the embedding case. In such a case, the elevating pole is inclined or cannot be raised or lowered in the vertical direction. In order to solve this, accurate adjustment of the position of the guide roller is required, which is very complicated.

  Next, the reason that the repair of the lifting pole in (2) is complicated is that the rotating chain is directly engaged with the lifting pole. The lifting pole is often damaged due to contact with the vehicle. Therefore, the lifting pole is often removed for repair or replacement. At this time, since the rotating chain as the elevating mechanism is attached to the elevating pole, it cannot be easily removed and is very complicated.

  Next, regarding the laying of the embedding case of (3), it is considered that the embedding case of the prior art has a high strength such as steel because the guide roller comes into contact therewith. For this reason, the embedding case itself is quite heavy. In order to install such an embedding case, it is necessary to excavate and embed the ground and adjust the height so that the upper end is flush with the road surface. Such precise ground excavation and height adjustment is very complicated.

  Further, regarding the waterproof measure (4), the prior art discloses that the motor itself is installed at a position higher than the ground in order to prevent water from entering the motor. In addition, the motor is installed in a place different from the lifting pole device. Therefore, another space for installing the motor is required, and a complicated transmission mechanism for transmitting the driving force of the motor to the lifting mechanism of the lifting pole is also required.

  In view of the above problems, according to one aspect of the present invention, a lifting pole device capable of controlling a flow of a vehicle, preventing unauthorized release from a parking lot, and quickly raising and lowering a pole with a simple structure. I will provide a.

  In view of the above problem, a first means is an elevating pole device for raising and lowering a pole with respect to a road surface, comprising a pole member including a pole and a pole support, a guide unit and a guide rail for raising and lowering the pole member. A mechanism and a drive mechanism for driving the elevating mechanism are provided, and the guide unit is mounted on the pole support. With such a configuration, it is possible to remove the pole from the pole support while maintaining the state of coupling between the pole support and the guide unit. Therefore, repair and replacement of the pole are easy.

  The second means has a configuration in which, in addition to the structure of the first means, two sets of lifting mechanisms are provided at positions at an angle difference of 90 ° with respect to the pole support when viewed from above. I have. With such a configuration, the pole support is vertically guided by these two sets of elevating mechanisms.

  The third means is such that, in addition to the configuration of the first means or the second means, the guide rail of the elevating mechanism has a plate-like portion extending in the vertical direction, and the guide unit moves the guide rail from the front and back surfaces. A configuration is provided in which at least two rollers are provided for sandwiching. With this configuration, at least two rollers reliably hold the guide rail.

  The fourth means further includes, in addition to any one of the first to third means, an upper casing accommodating the elevating mechanism and the drive mechanism, and a lower casing at least partially inserted into the upper casing. In this configuration, the upper end of the lower casing is located higher than the bottom surface of the upper casing. With such a configuration, even if water enters the upper casing, water does not enter the lower casing up to the upper end of the lower casing.

  The fifth means adopts a structure in which a plurality of bent steel plate parts are joined to the upper casing in addition to the structure of the fourth means. With such a configuration, if a technique such as rivet bonding is used, the upper casing can be manufactured at low cost, and a plated steel sheet that is less likely to rust can be used.

  The sixth means adopts a structure in which at least one drain port is provided on the bottom surface of the upper casing in addition to the structure of the fourth means or the fifth means. With such a configuration, even if water enters the upper casing, the water is quickly discharged to the outside through the drain port.

  The seventh means adopts a configuration in which the lower casing is a vinyl chloride pipe laid in a vertical direction in addition to any one of the fourth means to the sixth means. With such a configuration, the polyvinyl chloride pipe exerts an earth retaining function to protect the lifting mechanism. Further, when laying the lower casing, it is only necessary to lay a vinyl chloride pipe of an appropriate length and then cut the pipe to an appropriate length.

  Eighth means is provided in addition to any one of the fourth means to the seventh means, wherein an opening / closing lid is provided at a position corresponding to the pole on the upper surface of the upper casing so as to open and close according to the elevation of the pole. Is adopted. With such a configuration, when the pole is lowered, the opening / closing lid is closed, so that water can be effectively prevented from entering.

  In a ninth aspect, in addition to any one of the first to eighth aspects, the driving mechanism includes an electric motor having a predetermined motor rotation shaft, a driving sprocket engaged with the electric motor, The driven sprocket is provided at a distance from the driven sprocket, a chain spanned between the driven sprocket and the driven sprocket, and an engaging member that engages the chain with a pole support is provided. I have. With such a configuration, the pole can be raised and lowered only by supplying power from the outside. In addition, since the drive mechanism is a simple drive mechanism such as an electric motor, a sprocket, and a chain, it is not easily broken and repair is easy.

  According to a tenth aspect, in addition to the configuration of the ninth aspect, a waterproof cover for accommodating an electric motor is further provided, and an oil seal is provided around a motor rotation shaft protruding from the prevention cover. I am taking it. With such a configuration, the electric motor is kept waterproof even if water enters the upper casing.

  The eleventh means adopts a configuration in which the waterproof cover is provided with a waterproof connector for connecting the electric motor and the power supply, in addition to the configuration of the tenth means. With such a configuration, it is possible to reliably prevent water from entering near the power wiring.

  The twelfth means has a configuration in which, in addition to any one of the first to eleventh means, a position sensor for detecting the position of the pole support is further provided. With such a configuration, the pole support can be stopped at the appropriate highest and lowest positions. Further, by changing the installation position of the position sensor, the highest position and the lowest position of the pole support can be changed.

  In a thirteenth aspect, in addition to any one of the first to twelfth aspects, the pole member includes an exchangeable attachment for mounting a different type of pole to the pole support. The configuration is adopted. By replacing the attachment with such a configuration, various types of poles can be easily replaced depending on the application.

  The lifting pole device of the present invention can raise and lower the pole only by supplying power from the outside, despite its simple structure. Further, since the lifting mechanism for vertically moving the pole is not directly connected to the pole, the pole can be easily replaced.

1A is a schematic top view of a lifting pole device according to an embodiment of the present invention, FIG. 1B is a schematic front view, FIG. 1C is a plan view of an opening / closing lid, FIG. 1D is a schematic side view. FIG. 2 is a perspective view of the pole support and the lifting mechanism. FIG. 3 is a plan view of a part of the pole support, the lifting mechanism, and the driving mechanism. FIG. 4 is a front view of a part of the pole support, the lifting mechanism, and the driving mechanism. FIG. 5A is a schematic diagram before the lifting pole device is installed in the ground, FIG. 5B is a schematic diagram in a state where the lower casing is installed in the ground, and FIG. FIG. 5 is a schematic view of a state where the remaining components of the lifting pole apparatus are installed, and FIG. 5D is a schematic view of a state where the periphery of the lifting pole apparatus is fixed with mortar. FIG. 6A is a schematic diagram illustrating a state in which the pole projects from the road surface, FIG. 6B is a schematic diagram illustrating a state where the pole is descending, and FIG. FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

[Overview]
An overall outline of the lifting pole device 1 according to the present embodiment will be described based on FIGS. 1A to 1D and FIG. The lifting pole apparatus 1 includes a pole member including a pole 111 and a pole support 113, a lifting mechanism including a guide unit 211 and a guide rail 213 for lifting and lowering the pole member, and a driving mechanism for driving the lifting mechanism. The guide unit 211 is attached to the pole support 113.

[Pole members]
The pole member includes a pole 111 and a pole support 113 that supports the pole 111. The pole 111 is a cylindrical body or a columnar body that moves up and down with respect to the road surface G. The pole 111 is positioned such that the upper end surface thereof is slightly lower than the road surface G when in the lowest position. The pole 111 is installed at a median strip of a road or at a junction of a highway, and is used to control a flow of a vehicle, restrict a vehicle from entering a facility, and stop at an unmanned parking lot. Used for etc. In the case of a highway, for example, at a place where the vehicle merges from the parking area to the main line, a large number of such roads can be installed between the main line and the merging path to prevent reverse running. For this reason, the pole 111 is made of resin when installed on a median strip or a highway, but is made of metal when installed in an unmanned parking lot or the like. In addition to the above-mentioned applications, by being installed at the intersection with the sidewalk at the intersection, it can also be used to prevent the vehicle from entering the sidewalk. In that case, a marble pole or the like may be used. It can also be used during disasters such as tsunamis. For example, the pole is lowered during normal times. Then, raise the pole in an emergency such as a tsunami. By raising the pole, it is possible to restrict vehicles from going in the direction of the tsunami. At the same time, for a vehicle coming from the direction of the tsunami (vehicle escaping from the tsunami), a resin pole can be used to step down on the pole and escape in the opposite direction of the tsunami.

  Further, the shape of the pole 111 can be variously selected depending on the installation location and application. For example, the cross section may be elliptical or polygonal (triangle, pentagon, hexagon, etc.). Further, the pole 111 of the present embodiment is detachable from the pole support 113. This is to make it possible to easily select various types of poles 111 according to the application. Specifically, an attachment 115 is attached to the pole support 113, and the pole 111 is detachable from the attachment 115. The attachment 115 has a shape corresponding to a fitting portion formed at the lower end of the pole 111. Specifically, a boss having a diameter smaller than the diameter of the pole 111 is formed, and a fitting portion between the boss and the pole 111 is fitted. The attachment 115 is replaceable so that poles having different outer diameters and materials can be easily attached to the pole support 113.

  The pole support 113 is a hollow columnar body having a C-shaped cross section, and supports the attachment 115 described above. Therefore, the attachment 115 moves up and down together with the pole support 113 moving up and down. As a result, the pole 111 itself moves up and down together with the pole support 113. Various methods can be used for fixing the pole 111 to the pole support 113 or the attachment 115, but fixing with a bolt is the most common. For example, if the structure is fixed with one bolt, the pole 111 can be easily replaced. Note that the shape and structure of the pole support 113 of the present embodiment are merely examples, and pole supports of other shapes and structures can be used.

[Elevating mechanism]
The lifting mechanism includes a guide unit 211 and a guide rail 213. The elevating mechanism includes a support 215 parallel to the guide rail 211. A bottom plate 217 is fixed to the lower end of the support 215, and the lower end of the guide rail 213 is supported by the bottom plate 217. As shown in FIG. 2, the guide unit 211 includes first and second roller supports 211a and 211b attached to the above-described pole support 113, and a second roller support 211a and 211b rotatably supported by the roller supports 211a and 211b. The first and second rollers 211c and 211d are provided. The first roller support 211a is a U-shaped member. The first roller support 211a has an intermediate portion attached to the outer wall of the pole support 113. A first roller 211c is rotatably supported inside the first roller support 211a via a first roller shaft 211e. The first roller shaft 211e is fixed to the first roller support 211a by a circlip 211f. Here, the first roller 211c is parallel to the outer wall of the pole support 113 to which the first roller support 211a is attached.

  The second roller support 211b is composed of two members having an L-shaped cross section, and is positioned so as to sandwich the first roller support 211a from both sides. That is, each second roller support 211b rises at a right angle from the outer wall of the pole support 113 and extends in a direction away from the pole support 113. Two second roller shafts 211g are fixed to the portion of the second roller support body 211b farthest from the pole support body 113 so as to be vertically separated. These second roller shafts 211g are also fixed by circlips 211f. A second roller 211d is rotatably supported on each of the second roller shafts 211g. The second roller 211d is also parallel to the outer wall of the pole support 113. Therefore, the second roller 211d is parallel to the first roller 211c.

  Here, the positional relationship between the first roller 211c and the second roller 211d will be described. When the lifting mechanism is viewed from above, as shown in FIG. 3, the second roller 211d is farther from the outer wall of the pole support 113 than the first roller 211c. This is a horizontal positional relationship. The positional relationship is such that a predetermined gap is formed between the first roller 211c and the second roller 211d. This gap is a distance corresponding to the thickness of a guide rail 213 described later. That is, the guide rail 213 is sandwiched between the first roller 211c and the second roller 211d. Further, as shown in FIG. 4, the vertical positional relationship between the first roller 211c and the second roller 211d is such that the first roller 211c is positioned between two upper and lower second rollers 211d. It is supposed to. The two second rollers 211d are both equidistant from the outer wall of the pole support 113.

  Returning to FIG. 1A, the guide rail 213 is disposed between the first roller 211c and the second roller 211d, and extends in the vertical direction. The upper end of the guide rail 213 is fixed to an upper casing 41 described later, and the lower end of the guide rail 213 is fixed to a bottom plate 217 provided at the lower end of the column 215. The guide rail 213 extends from the upper end to the lower end of the lifting pole device 1, and its length is slightly longer than the moving distance of the guide unit 211. Further, as described above, since the guide rail 213 is sandwiched between the first and second rollers 211c and 211d, the guide unit 211 can move up and down in the vertical direction along the guide rail 213. The guide rail 213 is formed in a U-shaped cross section, and houses the first roller 211c and the first roller support 211a therein. However, the cross-sectional shape of the guide rail 213 is not limited to a U-shape, and may have a plate-shaped portion extending in the vertical direction. For example, the shape may be a simple flat plate or an L-shape. In short, any shape can be adopted as long as the shape is sandwiched between the first roller 211c and the second roller 211d.

  Although not shown, the first and second roller supports 211a and 211b are fixed to the pole support 113 by a predetermined method. For example, welding and bolting are common. Moreover, you may make it fix with an adhesive agent. In the case of bolting, a slot is formed in the first and second roller supports 211a and 211b, and the positions of the first and second roller supports 211a and 211b are determined by the pole support 113. May be configured so that fine adjustment is possible. Further, in the present embodiment, one guide roller 211c and two second rollers 211d are provided for one set of guide units, but the present invention is not limited to this. That is, two first rollers 211c and one second roller 211d may be provided, or three or more rollers may be provided. In some cases, one first roller 211c and one second roller 211d may be provided.

  As shown in FIG. 3, two sets of guide units 211 are attached to two mutually perpendicular outer walls of the pole support 113. That is, two sets of guide units are provided at two places with an angle difference of 90 °. This is a structure in which the lower guide unit 211 in FIG. 3 prevents vertical swing in the figure relative to the pole, while the left guide unit 211 in the figure prevents horizontal swing in the figure. Therefore, the pole support 113 can be raised and lowered in the vertical direction without being inclined by these two sets of guide units 211. In the lifting mechanism according to the present embodiment, the guide unit 211 can be mounted on the pole support 113 after being appropriately adjusted. Therefore, the positional relationship with the guide rail 213 can be easily optimized.

  The elevating mechanism is provided with a position sensor for detecting the position of the pole support 113 in the vertical direction. This position sensor mainly detects the uppermost position and the lowermost position of the moving range of the pole support 113. Specifically, an upper limit proximity sensor 219a and a lower limit proximity sensor 219b are fixed to a driving sprocket support bracket described later (see FIGS. 1A and 1B), while a chain described later is used. An upper limit sensor dog 220a and a lower limit sensor dog 220b are attached to 315 (see FIGS. 1A and 1D). The upper and lower sensor dogs 220a and 220b are separated from each other at a predetermined interval. The distance between the upper and lower sensor dogs 220a and 220b corresponds to the maximum movement distance (elevation stroke) of the pole support 113. When the chain 315 is driven to raise the pole support 113, the upper limit sensor dog 220a approaches the upper limit proximity sensor 219a. At this time, the upper limit sensor dog 220a is made of a metal piece. Since the upper-limit proximity sensor 219a is a sensor that can detect the approach of the metal member, it can determine that the pole support 113 has risen. On the other hand, when the pole support 113 descends to the lowest position, the lower limit sensor dog 220b approaches the lower limit proximity sensor 219b. Since the lower limit proximity sensor 219b can also detect the approach of the lower limit sensor dog 220b made of a metal piece, the lowering of the pole support 113 can be detected.

[Drive mechanism]
Next, the driving mechanism will be described. The driving mechanism includes an electric motor 311, a driving sprocket 313 connected to the electric motor 311, a driven sprocket 319 installed at a distance from the driving sprocket, and a bridge between the driving sprocket 313 and the driven sprocket 319. And an engaging member 317 that engages the chain 315 with the pole support 113.

  The electric motor 311 is arranged in the upper end region of the lifting pole device 1 such that the motor rotation shaft 311a faces in the horizontal direction. A first coupling 311b is attached to a tip of the motor rotation shaft 311a. The first coupling 311b is engaged with a second coupling 311c attached to the driving sprocket 313. The driving sprocket 313 is supported by a sprocket shaft 313a, and the sprocket shaft 313a is supported by bearings. Therefore, when the motor rotation shaft 311a of the electric motor 311 rotates, the driving sprocket 313 also rotates. The electric motor 311 is covered by a waterproof cover 321. In the waterproof cover 321, an oil seal for preventing water from entering is provided at a portion where the motor rotation shaft 311 a protrudes. The waterproof cover 321 is also provided with a waterproof connector 323. The electric motor 311 and an external power supply (not shown) are connected via the waterproof connector 323.

  As shown in FIG. 3, an engaging member 317 is attached to an outer wall of the pole support 113. This engagement member 317 is for engaging the chain 315 with the pole support 113. The engaging member 317 is fixed to the pole support 113 by a screw and is engaged with a hole of the chain 315 by a pin. However, the structure of the engaging member 317 is an example, and another structure may be adopted.

[casing]
The above-described pole member, lifting mechanism, drive mechanism, and the like are housed in a predetermined casing. As shown in FIG. 1B, the casing includes an upper casing 41 and a lower casing 47. The upper casing 41 is exposed on the road surface G, and mainly accommodates a drive mechanism including the electric motor 311. The upper casing 41 is made of a thin steel plate. Specifically, a part is manufactured by bending a notched or drilled steel plate, and the manufactured part is joined by a method such as rivet joining to form an upper casing. By employing such a manufacturing method, the upper casing can be manufactured at low cost. Further, a rust-resistant plated steel plate can be used. In addition, other than rivet joining, techniques such as screwing and welding can also be used. When the upper casing 41 is viewed from above, it has a rectangular shape as shown in FIG. A pole 111 is provided on one side of the rectangle, and an electric motor 311 is provided on the other side.

  A predetermined drain port 413 is provided on the bottom surface of the upper casing 41. This is because when water enters the upper casing 41, the water can be drained smoothly. In the present embodiment, two drain holes 413 are provided near the installation area of the electric motor 311. A drain pipe 415 is connected to each of the two drain ports 413. The drain pipe 415 is connected to a predetermined drain box (not shown) through the ground. Further, a predetermined wiring lead-in pipe 417 is arranged along the drain pipe 415. The wiring drawing pipe 417 is for drawing wiring to the electric motor 311 into the upper casing 41. For this reason, the wiring lead-in piping 417 extends from the power supply (not shown) to the inside of the upper casing 41. Note that the number and position of the drain holes 413 are not particularly limited.

  A circular opening 419 is formed on the bottom surface of the upper casing 41 at a position corresponding to the lifting mechanism. This circular opening 419 is for the lower casing 47 to be inserted. The lower casing 47 of this embodiment is a vinyl chloride pipe having a diameter of about 300 mm for earth retaining. The vinyl chloride pipe is placed vertically in the ground, and the upper casing 41 is placed on the upper end of the lower casing 47. At this time, the lower casing 47 is installed so that the upper end thereof is slightly higher than the bottom surface of the upper casing 41 (for example, about 30 mm to 50 mm). In this way, even if water enters the upper casing 41, it is possible to prevent water from entering the lifting mechanism side due to the step. When laying the lower casing 47, it is possible to prepare a vinyl chloride pipe of an appropriate length and cut the upper end after the laying to adjust the height. is there.

  The length of the lower casing 47 is determined according to the length of the lifting mechanism. At this time, the length of the lower casing 47 is a length that reaches further below the lower end of the guide rail 213 of the lifting mechanism. This is to prevent the lowermost end of the guide rail 213 from contacting the bottom surface in the lower casing 47. In the present embodiment, a distance of about 50 mm is secured between the bottom surface of the lower casing 47 and the lower end of the guide rail 213. As described above, since the guide rail 213 is separated from the bottom surface of the lower casing 47, even if water enters the lower casing 47, the guide rail 213 and the like can be reliably prevented from being immersed in water. Note that the dimensions and length of the lower casing 47 are merely examples, and are not particularly limited.

  FIGS. 5A to 5D are diagrams for explaining a procedure for installing the upper casing 41 and the lower casing 47 of the lifting pole device 1 underground. First, a hole that allows the upper casing 41 and the lower casing 47 to be installed is dug in the ground. The hole for installing the lower casing 47 is, for example, about 1000 mm deep from the ground (see FIG. 5A). Next, the lower casing 47 is installed. In this state, the crushed stones 51 are spread in the holes and sufficiently compacted (see FIG. 5B). The rolling is performed to prevent the upper casing 41 from sinking even when a force is applied to the upper casing 41 from above. Next, the mortar 53 is filled on the crushed stone 51, and the upper casing 41 is disposed on the mortar 53 (see FIG. 5C). At this time, the upper end surface of the upper casing 41 is flush with the ground G. Thereafter, the periphery of the upper casing 41 is further filled with mortar 53 and solidified (see FIG. 5D). Thereby, the upper casing 41 has a certain strength.

  The entire upper surface of the upper casing 41 is an opening. This opening is sealed by a rectangular lid body 43. A rib for increasing strength is provided on the lower surface of the lid main body 43. However, the rib is not essential. A pole opening 44 is formed at a position corresponding to the pole 111 in the lid main body 43. The pole opening 44 is an opening through which the pole 111 passes when moving up and down. An opening / closing lid 45 (see FIG. 1C) is provided in the pole opening 44. The opening / closing lid 45 is for sealing the pole opening 44 when the pole 111 is lowered. The opening / closing lid 45 is provided with a spring for applying a spring force in a sealing direction.

[Action]
Next, based on FIGS. 6 (A) to 6 (C), the operation of each part will be described by taking as an example a case where the lifting pole device 1 is installed in the median strip. First, when used for the median strip, the pole 111 is stationary in an elevated state (see FIG. 6A). Thereby, the flow of the oncoming vehicle can be controlled. On the other hand, when the road is flooded due to a flood or the like, the pole 111 needs to be lowered. The pole 111 is moved up and down by a control unit (not shown) controlling the electric motor 311.

  The control unit transmits a command to the electric motor 311 to rotate the electric motor 311 in a direction to lower the pole 111. When the electric motor 311 rotates, the driving sprocket 313 also rotates. Since the chain 315 extends between the driving sprocket 313 and the driven sprocket 319, the chain 315 also moves. The chain 315 is engaged with the pole support 113 via an engaging member 317 (see FIG. 1D). For this reason, the pole support 113 tends to descend as the chain 315 moves. At this time, since the pole support 113 is guided by the two sets of guide units 211, it descends along the guide rails 213, and as a result, the pole members (the pole 111 and the pole support 113) also descend (FIG. 6 ( B)).

  When the pole support 113 reaches near the lowermost position of the guide rail 213, the L-shaped lower limit sensor dog 220b attached to the chain 315 approaches the lower limit proximity sensor 219b. Then, the lower limit proximity sensor 219b detects the approach of the lower limit sensor dog 220b. Thus, it can be determined that the pole support 113 has approached the lowermost position of the guide rail 213. The information of the lower limit proximity sensor 219b is sent to the control unit, and the control unit sends a signal to stop the electric motor 311. Therefore, the electric motor 311 stops, and the lowering of the pole support 113 also stops (see FIG. 6C). At this time, an open / close lid 45 with a spring (see FIG. 1D) is provided above the pole 111 and on the upper surface of the upper casing 41. Therefore, when the pole 111 is completely lowered, the opening / closing lid 45 is closed by the spring force.

  On the other hand, when raising the pole, the above operation is reversed. That is, a signal for raising the pole 111 is transmitted from the control unit. The electric motor 311 rotates in a direction opposite to that in the case of descending, and rotates the driving sprocket 313. As a result, the chain 315 is driven, and the pole support 113 is raised. As the pole support 113 rises, the pole 111 also rises. At this time, the tip of the pole 111 pushes the opening / closing lid 45 open against the spring force. Then, it continues to ascend to the uppermost position. Then, the upper limit sensor dog 220a fixed to the chain 315 approaches the upper limit proximity sensor 219a (see FIG. 1A). The upper limit proximity sensor 219a detects the approach of the upper limit sensor dog 220a made of a metal piece, and transmits the detection to the control unit. The control unit transmits a signal for stopping the electric motor 311, thereby stopping the electric motor 311 and stopping the rise of the pole 111.

  As described above, the lifting pole device 1 of the present embodiment can freely raise and lower the pole 111 simply by supplying power and a signal for controlling the electric motor 311 from an external power supply. Therefore, the center divider can be flexibly changed, and the pole 111 can be quickly lowered in an emergency. Further, since no hydraulic pump or pneumatic pump is used, the apparatus itself can be made compact and installation underground is easy.

  DESCRIPTION OF SYMBOLS 1 ... Pole device, 111 ... Pole, 113 ... Pole support, 115 ... Attachment, 211 ... Guide unit, 211a ... 1st roller support, 211b ... 2nd roller support, 211c ... 1st roller 211d ... second roller, 211e ... first roller shaft, 211f ... circlip, 211g ... second roller shaft, 213 ... guide rail, 215 ... post, 217 ... bottom plate, 219a ... proximity sensor for upper limit, 219b ... Lower limit proximity sensor, 220a: upper limit sensor dog, 220b: lower limit sensor dog, 311: electric motor, 311a: motor rotating shaft, 313: driving sprocket, 315: chain, 317: engaging member, 319: driven sprocket, 321 ... Waterproof cover, 323: waterproof connector, 41: upper casing, 413: drain port, 4 5 ... drain pipe, 417 ... wire pull pipe 43 ... lid body 45 ... lid, 47 ... lower casing 51: crushed stone, 53 ... mortar, G ... road

Claims (13)

A lifting pole device that raises and lowers a pole with respect to a road surface,
A pole member including a pole and a pole support, a lifting mechanism including a guide unit and a guide rail for lifting and lowering the pole member, and a driving mechanism for driving the lifting mechanism,
The guide unit is a lifting pole device attached to the pole support. The lifting pole device according to claim 1,
The lifting pole device, wherein two sets of the lifting mechanism are provided at a position at an angle difference of 90 ° from the pole support when viewed from above. The lifting pole device according to claim 1 or 2,
The lift pole device, wherein the guide rail of the lift mechanism has a plate-shaped portion extending in a vertical direction, and the guide unit includes at least two rollers for sandwiching the guide rail from the front and back. The lifting pole device according to any one of claims 1 to 3,
An upper casing accommodating the lifting mechanism and the driving mechanism, and a lower casing at least partially inserted into the upper casing,
An elevating pole device in which an upper end of the lower casing is higher than a bottom surface of the upper casing. The lifting pole device according to claim 4,
A lifting pole device in which the upper casing is formed by joining a plurality of bent steel plate parts. The lifting pole device according to claim 4 or 5,
A lifting pole device, wherein at least one drain port is provided on a bottom surface of the upper casing. The lifting pole device according to any one of claims 4 to 6,
The lifting pole device, wherein the lower casing is a vinyl chloride pipe laid vertically. The lifting pole device according to any one of claims 4 to 7,
An elevating pole device, wherein an opening / closing lid that opens and closes in accordance with the elevating of the pawl is provided at a position corresponding to the pole on the upper surface of the upper casing. The lifting pole device according to any one of claims 1 to 8,
The driving mechanism includes an electric motor having a predetermined motor rotation shaft, a driving sprocket engaged with the electric motor, a driven sprocket installed away from the driving sprocket, and a driving sprocket disposed between the driving sprocket and the driven sprocket. An elevating pole device comprising a chain to be bridged and an engaging member for engaging the chain with the pole support. The lifting pole device according to claim 9,
An elevating pole device further comprising a waterproof cover for accommodating the electric motor, wherein an oil seal is provided around the motor rotation shaft protruding from the waterproof cover. The lifting pole device according to claim 10,
A lifting pole device, wherein the waterproof cover is provided with a waterproof connector for connecting the electric motor and a power supply. The lifting pole device according to any one of claims 1 to 11,
A lifting pole apparatus further comprising a position sensor for detecting a position of the pole support. The lifting pole device according to any one of claims 1 to 12,
An elevating pole apparatus, wherein the pole member includes an exchangeable attachment for mounting different types of poles to the pole support.

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