Corn bar

Abstract

The invention provides a cone bar that reduces the burden on workers during installation, removal, and reinstallation, and also reduces the risk of falls and other accidents by preventing people from stepping over it. [Solution] The cone bar 1 according to the embodiment comprises a lower bar 11 which has mounting portions 10 at both ends and is attached to a road cone 2, and an upper bar 12 which is positioned parallel to the lower bar 11 at a step above and horizontally offset from the lower bar 11, and the lower bar 11 and the upper bar 12 are connected to each other and can be attached to and detached from the road cone 2 as a single unit.

Description

【Technical Field】 【0001】 The present disclosure relates to a cone bar attached to a load cone. 【Background Art】 【0002】 Conventionally, a cone bar has been used by being attached to load cones arranged at intervals, for example, to suppress intrusion into a restricted area where entry is restricted. And, for example, in Patent Document 1, it is described that by using a dedicated bar having a two-stage structure and a load cone having a dedicated attachment structure, it is easier to recognize the presence of the cone bar. 【Prior Art Documents】 【Patent Documents】 【0003】 【Patent Document 1】 Utility Model Registration No. 3127987 Gazette 【Summary of the Invention】 【Problems to be Solved by the Invention】 【0004】 By the way, in the conventional configuration, although the presence of the cone bar is easy to recognize, a dedicated bar and attachment structure are required, and there is a problem that installation, removal, and reinstallation are troublesome and the burden on workers increases. Further, in the conventional cone bar, even if the presence of the cone bar is recognized, a person can easily step over it, and there has been a problem as a risk of tripping and falling when stepping over. 【0005】 The present disclosure has been made in view of the above circumstances, and its object is to provide a cone bar that can reduce the burden on workers in installation, removal, and reinstallation, and can suppress a person from stepping over and reduce risks such as falling. 【Means for Solving the Problems】 【0006】 A cone bar according to one aspect of the present disclosure comprises a lower bar having mounting portions at both ends and being attached to a road cone, and an upper bar positioned parallel to the lower bar at a step above and horizontally offset from the lower bar, wherein the lower bar and the upper bar are connected to each other and can be attached to and detached from the road cone as a single unit. [Brief explanation of the drawing] 【0007】 [Figure 1] This diagram schematically shows an example of how to install a cone bar according to the embodiment. [Figure 2] A schematic diagram showing an example of a cone bar configuration. [Figure 3] A schematic diagram showing an example of the angle range for setting the cone bars. [Figure 4] A schematic diagram showing an example of the configuration and mounting method of a light-emitting device. [Figure 5] A schematic diagram showing an example of the configuration of a dedicated weight. [Figure 6] Figure 1 schematically shows other examples of cone bar configurations. [Figure 7] Figure 2 schematically shows other examples of cone bar configurations. [Figure 8] Figure 3 schematically shows other examples of cone bar configurations. [Modes for carrying out the invention] 【0008】 The embodiments will be described below with reference to the drawings. As shown in Figure 1 as a plan view, front view, and side view, the cone bar 1 is used by being attached to a pair of road cones 2. Hereafter, the directions indicated by arrows in Figure 1 will be described as left / right, front / back, and up / down. 【0009】 The cone bar 1 of this embodiment comprises a lower bar 11 having annular mounting portions 10 at both ends into which the upper end of the road cone 2 is inserted, an upper bar 12 positioned parallel to the lower bar 11 at a step-like position above the lower bar 11 and shifted horizontally backward, and connecting members 13 connecting both ends of the lower bar 11 and both ends of the upper bar 12, respectively. 【0010】 The lower bar 11 and upper bar 12 are formed in a rod shape and have an alternating white and black color scheme achieved by coloring or wrapping tape around them. However, the color scheme is not limited to this, and different color schemes can be used depending on the location and situation in which the cone bar 1 is installed, such as black and yellow, green and white, or blue and white. The connecting member 13 can also have the same or different color scheme as the lower bar 11 and upper bar 12. 【0011】 As shown in Figure 2(a), the cone bar 1 is formed as a single unit, comprising the lower bar 11, the upper bar 12, and each connecting member 13. Therefore, by attaching each mounting portion 10 to the upper end of the road cone 2, the cone bar 1 can be attached to the road cone 2 as a single unit, with the lower bar 11 and the upper bar 12 connected to each other. Furthermore, the cone bar 1 can be removed from the road cone 2 as a single unit, with the lower bar 11 and the upper bar 12 connected to each other. 【0012】 In this configuration, the connecting members 13 are installed at an angle relative to the lower bar 11 such that their ends on the upper bar 12 side are closer to each other. Specifically, if the lower bar 11, upper bar 12, and connecting members 13 are arranged on a virtual XY plane (P), each connecting member 13 is connected such that the angle of inclination (α) between it and the lower bar 11 is 45 degrees or less. Note that the angle of inclination (α) shown here is just an example and is not limited to it. 【0013】 Furthermore, the mounting portion 10 is formed in a generally flat annular shape, and if the plane along the surface of the mounting portion 10 is called the mounting portion surface (R), then the mounting portion surface (R) is provided rotated with respect to the XY plane (P). In this embodiment, the rotation angle (β) between the mounting portion surface (R) and the XY plane (P) is 60 degrees. Note that the rotation angle (β) shown here is just an example and is not limited thereto. 【0014】 Therefore, when the cone bar 1 is attached to the road cone 2, the mounting surface (R) becomes parallel to the installation surface, as shown in the cross section of line AA in the side view in Figure 1, and consequently the connecting member 13 becomes inclined backward with respect to the installation surface. However, "parallel" here does not mean a state where they are perfectly parallel, but also includes a state where there is a slight deviation that can be considered roughly parallel to the naked eye. 【0015】 Thus, the cone bar 1 can be positioned in a staggered parallel configuration by simply attaching the mounting portion 10 of the lower bar 11 to the road cone 2. Furthermore, the cone bar 1 can be removed from the road cone 2 as a single unit by grasping and lifting either the lower bar 11 or the upper bar 12. By making the lower bar 11 and upper bar 12 detachable as a single unit, the cone bar 1 significantly reduces the burden on workers during installation, removal, and reinstallation. In addition, with the configuration of the cone bar 1, the two lower bars 11 and upper bars 12 do not separate during attachment or detachment. 【0016】 In this embodiment, the length (L1) of the lower bar 11 is assumed to be approximately 1910 mm, the length (L2) of the upper bar 12 is assumed to be approximately 1150 to 1220 mm, the length (L3) of the connecting member 13 is assumed to be approximately 500 mm, and the height of the road cone 2 is assumed to be approximately 690 mm. However, the values ​​shown here are just examples and are not limited to them. 【0017】 In this case, in the installed state where the cone bar 1 is attached to the load cone 2, the upper bar 12 is located approximately 300 mm above the lower bar 11 in the front view and approximately 200 mm behind the lower bar 11 in the plan view. Also, the upper bar 12 is arranged at a position approximately 980 - 1000 mm from the installation surface. 【0018】 Therefore, as shown in the front view in FIG. 1, the upper bar 12 is positioned above the lower bar 11, and since the upper bar 12 is located above the lower bar 11, it psychologically inhibits people from trying to straddle, and can reduce safety risks such as falls. Also, since the upper bar 12 is at a height of approximately 1000 mm from the installation surface, it can further physically inhibit people from trying to straddle. Further, in the front view, since the upper bar 12 is positioned approximately 300 mm above the lower bar 11, for example, A4-sized paper can be placed vertically on the upper bar 12, and cautionary notices such as "Entry prohibited" can also be placed. 【0019】 Also, in the case of the above structure, as shown in an example of the arrangement pattern in FIG. 3 in the plan view, even when the cone bar 1 is installed sharing one load cone 2A, the installable angle (γ) between the cone bar 1 and the other cone bar 1 can be arranged in a state exceeding approximately 270 degrees. Thereby, for example, it becomes possible to flexibly install the cone bar 1 according to the shape of the restricted area (X) that restricts people's entry, and the freedom of installation can be improved. Also, although not shown in the figure, since another cone bar 1 can be arranged on the load cone 2 on the non-sharing side, the number of required load cones 2 can be reduced and the installation range can be made space-saving. 【0020】 In addition, as shown in Fig. 2(b), the cone bar 1 of the present embodiment is configured such that the orientation of the mounting portion 10 can be adjusted. Therefore, as shown in the installation state, since the mounting portion surface (R) and the XY plane (P) are inclined during use, the mounting portion 10 protrudes left and right. On the other hand, as shown in the storage state, by aligning the orientation of the mounting portion 10 with the mounting portion surface (R) and the XY plane (P), the mounting portion 10 can be made not to protrude left and right. 【0021】 As a result, when storing during non-use or transporting to the installation location, etc., since the mounting portion 10 does not protrude, the storage space can be reduced, and it can be easily transported without getting caught on other cone bars 1. Note that the present embodiment does not intend to exclude those in which the angle of the mounting portion 10 cannot be adjusted, and it is explained that the above convenience can be obtained by making the angle of the mounting portion 10 adjustable. 【0022】 Also, although not shown in Figs. 1 to 3, as shown in Fig. 4(a), a light emitter 20 can be provided on the cone bar 1. In the case of Fig. 4(a), a plurality of light emitters 20 are provided on the lower bar 11 and the upper bar 12, respectively. That is, the light emitter 20 is provided integrally with the cone bar 1. This light emitter 20 is constituted by an LED. At this time, it is desirable to provide the light emitter 20 at least at both left and right end positions in the lateral direction of the lower bar 11 and the upper bar 12. Thereby, even in a dark situation, the widths of the lower bar 11 and the upper bar 12 can be clearly indicated. Note that the light emitter 20 can also be provided in the connecting member 13. 【0023】 As shown in Fig. 4(b), the operation of the light emitter 20 is controlled by a control device 21. The control device 21 is fixed to, for example, the connecting member 13, and includes a control unit 22, a solar module 23, an illuminance sensor 24, a human presence sensor 25, a switch 26, etc. Also, between each light emitter 20 and the control device 21, they are connected by a cable 27. 【0024】 The control device 21 then uses the power generated and charged by the solar module 23 to control the lighting and extinguishing of the light-emitting element 20. Specifically, the control device 21 lights up or flashes the light-emitting element 20, for example, when the illuminance detected by the illuminance sensor 24 falls below a predetermined value, or when a person is detected by the motion sensor 25. 【0025】 Furthermore, the control device 21 controls the operation of the light-emitting element 20 to one of the following based on the setting of the switch 26 operated by the worker: to light up or flash when a person is detected by the motion sensor 25, to light up or flash continuously regardless of whether a person is detected, or to stay off continuously regardless of whether a person is detected. However, the operation of the light-emitting element 20 shown herein is just an example and is not limited thereto. Alternatively, without providing a switch 26, the light-emitting element can be configured to flash or light up continuously when a person is detected when it becomes dark. 【0026】 As a result, when it gets dark, such as in the evening or at night, the light-emitting element 20 is turned on or flashed by the control device 21, making the presence of the cone bar 1 clearly visible to the surroundings. Furthermore, by providing a switch 26, the operation of the light-emitting element 20 can be switched according to the conditions of the location where the cone bar 1 is installed. In addition, because the light-emitting element 20 is integrated with the cone bar 1, when the cone bar 1 is installed, the light-emitting element 20 is automatically installed in the designated position, so as not to excessively increase the burden on the worker. 【0027】 Incidentally, the cone bar 1 has a lower bar 11 and an upper bar 12 that are parallel but at different levels, with the upper bar 12 being positioned higher and further back than the lower bar 11. Therefore, depending on the weight, the center of gravity of the cone bar 1 becomes higher, and its center of gravity may be further back than that of the lower bar 11. As a result, when attached to the road cone 2, there is a risk that the cone bar 1 may tilt or come off. 【0028】 Therefore, in this embodiment, the posture of the cone bar 1 is maintained so that the lower bar 11 and the upper bar 12 are properly staggered and parallel by using a special weight 30, which is shown as an example in Figure 5(a). This special weight 30 is made of, for example, canvas, and has an annular portion 31 that is attached to the upper end of the road cone 2, and one or more strip-shaped portions 32 that extend outward from the outer edge of the annular portion 31. In this embodiment, two strip-shaped portions 32 are provided at positions diagonally opposite the outer edge of the annular portion 31. Note that the material and the number of strip-shaped portions 32 are not limited to this, and for example, three or more strip-shaped portions 32 may be provided around the outer circumference of the annular portion 31, for example, at equal intervals. 【0029】 The annular portion 31 and the strip-shaped portion 32 are formed to be hollow, allowing for the filling or storage of granular, liquid, or solid weights. Therefore, the dedicated weight 30 can be used by filling it with easily available materials such as sand or iron sand as weights at the work site. Alternatively, the dedicated weight 30 can be made of an impermeable material, allowing the use of water or other liquids as weights. Furthermore, a pocket can be provided in the strip-shaped portion 32 to allow for the storage or addition of small iron plates or other items on the spot. 【0030】 As shown in Figure 5(b), this special weight 30, when the road cone 2 is attached, is positioned so that the annular portion 31 overlaps the mounting portion 10 above it, thereby pressing down on the mounting portion 10 from above, and the downward-hanging strip portion 32 presses down on the mounting portion 10 from the side. This reduces the likelihood of the cone bar 1 tilting or coming loose. 【0031】 Furthermore, as shown in Figure 5(c) for the dedicated weight 30A, an unfilled portion 33 can be provided between the annular portion 31 and the strip portion 32 by sewing them together, so as not to contain the weight. In Figure 5(c), the areas where the weight is filled are schematically shown with hatching. In this case, since the annular portion 31 and the strip portion 32 are not connected, the filled or contained weight will not be unevenly distributed. 【0032】 This ensures that the weight is positioned on the annular portion 31 without shifting, and that the mounting portion 10 is securely held in place from above. Furthermore, since there is no weight in the unattached area, it becomes more flexible, allowing the strip-shaped portion 32 to hang down along the surface of the road cone 2 and securely hold the sides of the mounting portion 10. In addition, the strip-shaped portion 32 does not bulge outwards and obstruct passage or work. 【0033】 According to the embodiments described above, the following effects can be obtained. The cone bar 1 according to this embodiment comprises a lower bar 11 that is attached to a road cone 2 and has mounting portions 10 at both ends, and an upper bar 12 that is positioned parallel to the lower bar 11 at a step above and horizontally offset from the lower bar 11, and the lower bar 11 and the upper bar 12 are connected to each other and can be attached to and detached from the road cone 2 as a single unit. 【0034】 As the lower bar 11 and upper bar 12 are positioned at different levels, and the upper bar 12 is positioned higher than the lower bar 11, it is possible to psychologically deter people from stepping over the cone bar 1. Furthermore, by attaching the lower bar 11 to the road cone 2, the cone bar 1 can be installed as a single unit, consisting of the lower bar 11 and the upper bar 12. In addition, since workers can attach and detach the two bars by gripping either the lower bar 11 or the upper bar 12, the work can be performed efficiently. 【0035】 Therefore, it is possible to reduce the risk of people stepping over the cone bar and causing falls, and also reduce the burden on workers during installation, removal, and reinstallation. In addition, since the upper bar 12 is located behind the lower bar 11, it does not obstruct the front side of the cone bar 1, i.e., passages where entry is not restricted. 【0036】 The cone bar 1 includes a connecting member 13 that connects the lower bar 11 and the upper bar 12, and the connecting member 13 is integrally formed with the lower bar 11 and the upper bar 12. This allows the cone bar 1 to be formed with a simple structure. 【0037】 The cone bar 1 has connecting members 13 that are inclined so that the ends on the upper bar 12 side are closer together. This allows the cone bar 1 to be installed in an orientation that suits the shape of the restricted area (X), thereby improving the degree of freedom in installation. 【0038】 The cone bar 1 is inclined such that the connecting member 13 is tilted such that the angle between it and the lower bar 11 is 45 degrees or less in a plan view. This expands the range of possible angles (γ) between one cone bar 1 and the other cone bar 1 to over 270 degrees, further improving the flexibility of installation. 【0039】 In the cone bar 1, the upper bar 12 is positioned above the upper end of the road cone 2. As a result, the upper bar 12 is positioned higher from the installation surface, which further psychologically and physically deters people from stepping over it, thus further reducing the risk of falls and other accidents. In addition, by ensuring a distance of approximately 300 mm between the lower bar 11 and the upper bar 12 when viewed from the front, as in the embodiment, warning notices and other posters can be placed on the upper bar 12 in a front-facing, easily visible manner, thereby encouraging pedestrians to pay attention. 【0040】 The cone bar 1 includes a human presence sensor 25 that detects people, and light-emitting elements 20 provided on at least the lower bar 11 and the upper bar 12, which can emit light when a person is detected by the human presence sensor 25. This allows the presence of the cone bar 1 to be announced, for example, by illuminating the light-emitting elements 20 when a person approaches at night. Furthermore, by not illuminating when there is no need to, such as when no one is nearby, the impact on the surroundings due to unnecessary illumination can be reduced. In addition, by providing a light-emitting element 20 on the upper bar 12, it is possible to deter people from stepping over the cone bar, even at night. 【0041】 The cone bar 1 is equipped with a control device 21 that controls the operation of the light-emitting element 20. The control device 21 controls the light-emitting element 20 to one of the following actions: to light up or flash when a person is detected by the motion sensor 25; to light up or flash continuously regardless of whether a person is detected; or to stay off continuously regardless of whether a person is detected. This allows the lighting, flashing, or extinguishing of the light-emitting element 20 to be controlled according to the conditions of the location where the cone bar 1 is installed. 【0042】 The cone bar 1 has an annular portion 31 and one or more strip-shaped portions 32 extending outward from the outer edge of the annular portion 31. The cone bar 1 is attached to the road cone 2 so that the annular portion 31 overlaps the mounting portion 10, thereby pressing down on the mounting portion 10 from above, and is equipped with a dedicated weight 30 that presses down on the mounting portion 10 from the side with the strip-shaped portions 32 hanging down below. This allows the cone bar 1, which is positioned above and behind the road cone 2 and is a concern to tilt or detach from the road cone 2, to be positioned so that the lower bar 11 and the upper bar 12 are in an appropriate positional relationship. 【0043】 Furthermore, by using the dedicated weight 30, the road cone 2 can be pressed even more firmly against the installation surface. This prevents gaps from forming below the road cone 2, thereby preventing scattered objects from passing through and the road cone 2 from shifting position. 【0044】 Furthermore, the dedicated weight 30 has an annular portion 31 and a strip-shaped portion 32 that are hollow, allowing for the filling or storage of granular, liquid, or solid weights inside. This makes it usable as a weight by filling it with sand or water on-site, and when it is removed, the weight can be discarded to make it lighter and easier to transport, thus improving convenience. 【0045】 In this embodiment, a structure in which the lower bar 11, upper bar 12, and connecting member 13 are integrally formed is illustrated, but other configurations are also possible. Note that the structures described below are merely examples and are not limited to them; functionally identical or similar structures can be adopted. 【0046】 For example, as shown in Figure 6(a), the cone bar 1A can be configured such that the lower bar 11A, the upper bar 12A, and the connecting member 13A are treated as separate components and integrated together by a mounting bracket 40. That is, the cone bar 1A can be configured to include a connecting member 13A that connects the lower bar 11A and the upper bar 12A, and the connecting member 13A can be detachably attached to at least one of the lower bar 11A and the upper bar 12A. In this case, the lower bar 11A can be a commercially available one. 【0047】 This allows commercially available components to be used as is for the lower bar 11A and upper bar 12A. It also enables the use of an upper bar 12A in a location where a component equivalent to the lower bar 11A is already installed. In this case, the upper bar 12A can be a commercially available product having a mounting section 10, as indicated by the dashed line. Furthermore, as with the other configuration examples described below, a light-emitting element 20 and a dedicated weight 30 can also be provided. 【0048】 Furthermore, as shown in Figure 6(b) for the cone bar 1B, the connecting member 13B can be made into a clamp structure having a receiving portion 50 connected to the main body of the connecting member 13B and a retaining portion 51 that is screwed to the receiving portion 50 with a screw 52. This allows the upper bar 12B to be assembled to the already installed lower bar 11B as needed, or a commercially available product to be used as the upper bar 12B. Note that the clamp structure shown here is just one example, and other structures such as a structure divided in the front-to-back direction or a structure that elastically clamps like a clip can also be used. 【0049】 Furthermore, as shown in Figure 6(c) in its disassembled state, the cone bar 1C can also be configured to have a folding structure by connecting the upper bar 12C and the connecting member 13C with a hinge 60, and then connecting to the lower bar 11C by opening the hinge 60 and assembling it. In other words, the cone bar 1C is equipped with a connecting member 13C that connects the lower bar 11C and the upper bar 12C, and any of the lower bar 11C, upper bar 12C, or connecting member 13C can be made foldable. This makes it easy to store and transport the upper bar 12C and the connecting member 13C. In this case, the hinge 61 on the lower bar 11C side can be fixed to the lower bar 11C with screws or a clamp structure. Also, by using a clamp structure for the hinge 61, it can be fixed to the upper bar 12C when folded, allowing it to maintain a closed state for storage and transport. The hinge 60 can also be fixed to the upper bar 12C or the connecting member 13C with screws or a clamp structure. 【0050】 Furthermore, as shown in Figure 7(a) as the installed state of the cone bar 1D, a connecting member 13D is provided to connect the lower bar 11D and the upper bar 12D, and the configuration can be made foldable when the lower bar 11D, upper bar 12D and connecting member 13D are connected. Specifically, the connecting member 13D can be rotatably attached to both ends of the lower bar 11 by first pins 70, second pins 71 with screw threads are provided at both ends of the upper bar 12D, elongated holes 72 into which the second pins 71 can slide are formed in the connecting member 13D, and the second pins 71 can be fastened together with the connecting member 13D by wing nuts 73. Also, by using wing nuts 73, it is possible to fasten without requiring special tools. Alternatively, screw holes may be provided on the upper bar 12D side, and wing screws may be used for fastening instead of wing nuts 73. 【0051】 As a result, the cone bar 1D can be folded entirely by loosening the wing nut 73, as shown in the folded state. In this case, if the connecting member 13D is positioned behind the lower bar 11D, the entire lower bar 11D and upper bar 12D can be seen from the front. Furthermore, by making the first pin 70 somewhat longer, it is possible to arrange the connecting member 13D, upper bar 12D, and lower bar 11D on roughly the same plane from the front of the illustration, improving convenience during storage and transport. In addition, by tightening the wing nut 73 in the folded state, the folded state can be maintained during storage and transport. 【0052】 Furthermore, as shown in Figure 7(b) as the installed state of the cone bar 1E, connecting members 13E can be rotatably provided at both ends of the lower bar 11E, and the connecting member 13E on the right side of the diagram and the upper bar 12E can be rotatable. A screw hole 80 is provided on the left end side of the upper bar 12E, and a wing nut 81 is provided on the connecting member 13E on the left side of the diagram to secure it. In this case, it is preferable to configure it so that the wing nut 81 does not come off the connecting member 13E. Alternatively, a pin with a screw thread can be provided on the upper bar 12E and secured with a wing nut. 【0053】 As a result, the cone bar 1E can be folded as a whole by loosening the wing nut 81, as shown in the folded state. In this case, by arranging the connecting members 13E in front of and behind the lower bar 11E, respectively, it is possible to arrange each component on roughly the same plane from the front of the illustration in the order of the left connecting member 13E, lower bar 11E, right connecting member 13E, and upper bar 12E, without excessively reducing visibility from the front, thereby improving convenience during storage and transport. Furthermore, in the folded state, the left connecting member 13E, lower bar 11E, and upper bar 12E can be tied together using, for example, a string or band, to maintain the folded state during storage and transport. In addition, although not shown in the illustration, it is also possible to connect both ends of the connecting member 13 to the lower bar 11 and upper bar 12 so as to be rotatable, and to fold the middle portion of each connecting member 13 inward. 【0054】 Furthermore, as shown in Figure 8(a), the cone bar 1F can be configured so that the connecting member 13F is positioned approximately perpendicular to the lower bar 11F. In this case, both ends of the connecting member 13F can be directly fixed to the lower bar 11F and the upper bar 12F, respectively. Alternatively, both ends of the connecting member 13F can be made into the clamp structure described above. In addition, the lower bar 11F and the upper bar 12F can be made of the same type of material. 【0055】 As a result, as shown in Figure 8(b), it is possible to reduce the gap (S) between adjacent upper bars 12F in the installed state, which psychologically and physically discourages people from stepping over it, further reducing the risk of falls and other accidents. Note that in Figure 8(b), the lower bar 11F and the upper bar 12F are arranged in a staggered parallel manner. Such a cone bar 1F is very useful in situations where it is necessary to restrict access over a long area along a passageway, for example. Furthermore, by arranging it so as to connect the cone bar 1 exemplified in Figure 3 to the left side of the diagram, flexibility in placement can be ensured. 【0056】 The embodiments described above are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims of the invention and its equivalents. [Explanation of Symbols] 【0057】 In the drawing, 1, 1A-1F are cone bars, 2, 2A are road cones, 10 is the mounting part, 11, 11A-11F are the lower bars, 12, 12A-12F are the upper bars, 13, 13A-13F are the connecting members, 20 is the light-emitting element, 21 is the control device, 25 is the motion sensor, 30, 30A are the dedicated weights, 31 is the annular part, and 32 is the strip-shaped part.

Claims

[Claim 1] The lower bar has mounting points at both ends and is attached to the road cone, The system includes an upper bar positioned parallel to the lower bar, at a height above and horizontally offset from the lower bar, and having a step-like configuration. The lower bar and the upper bar are connected to each other and are a cone bar that can be attached to and detached as a single unit from the road cone. [Claim 2] A connecting member is provided to connect the lower bar and the upper bar. The cone bar according to claim 1, wherein the connecting member is formed integrally with the lower bar and the upper bar. [Claim 3] A connecting member is provided to connect the lower bar and the upper bar. The cone bar according to claim 1, wherein the connecting member is detachably provided to at least one of the lower bar and the upper bar. [Claim 4] A connecting member is provided to connect the lower bar and the upper bar. The cone bar according to claim 1, wherein any of the lower bar, the upper bar, and the connecting member are foldable. [Claim 5] The cone bar according to any one of claims 2 to 4, wherein the connecting member is inclined such that, in the installed state, the ends on the upper bar side are closer to each other. [Claim 6] The cone bar according to claim 5, wherein the connecting member is inclined such that the angle between it and the lower bar is 45 degrees or less in a plan view. [Claim 7] The cone bar according to claim 1, wherein the upper bar is positioned above the upper end of the road cone. [Claim 8] A motion sensor that detects people, At least the lower bar and the upper bar are provided with a light-emitting element that can emit light when a person is detected by the motion sensor, The cone bar according to claim 1, comprising: [Claim 9] The system includes a control device for controlling the operation of the light-emitting element, The cone bar according to claim 8, wherein the control device controls the light-emitting element to perform one of the following actions: light up or flash when a person is detected by the motion sensor, light up or flash at all times regardless of whether a person is detected, or turn off at all times regardless of whether a person is detected. [Claim 10] The cone bar according to claim 1, comprising an annular portion and one or more strip-shaped portions extending outward from the outer edge of the annular portion, wherein the annular portion is attached to the road cone from above the mounting portion to press down on the mounting portion from above, and the strip-shaped portions hanging down below press down on the mounting portion from the side. [Claim 11] The cone bar according to claim 10, wherein the annular portion and the strip-shaped portion are formed to be hollow in which granular, liquid, or solid weights can be filled or accommodated.

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