Supporting column and method of manufacturing the same

The deformable support column addresses visibility issues by supporting display signs conspicuously and safely, with integrated drainage and versatile functionality.

JP2026011304APending Publication Date: 2026-01-23NOK CORP
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Patent Information

Application Number
JP2024111793
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-07-11
Publication Date
2026-01-23

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Abstract

To provide a support column capable of supporting a display member so as to be conspicuous and a method for manufacturing the same.SOLUTION: A support column 1 includes a columnar column member 2 having an opening part side 22c in an upper end side 22e, and a support member 3 arranged in the column member 2 and supporting a display member 10 having a rod-like partial side 22e inserted into a space inside the column member 2 from the opening part side 10a. The column member 2 is formed of a material restorably deformable even by the action of an external force.SELECTED DRAWING: Figure 6
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Description

[Technical Field]

[0001] The present invention relates to a support column and a method for manufacturing the same. [Background technology]

[0002] For example, Patent Document 1 discloses a display device in which an elastically deformable display board is attached to an elastically deformable support. This display device can prevent pedestrians and others who collide with the display device from being injured and can also prevent damage to the display device itself. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-43039 Summary of the Invention [Problem to be solved by the invention]

[0004] The height from the ground to the top of the support pole is about knee-high for an adult, so if the sign is placed next to a parked vehicle, for example, it will be difficult for pedestrians and cyclists to see.

[0005] The present invention has been made in view of the above-mentioned problems, and has as its object to provide a support pole capable of supporting a display member in a conspicuous manner, and a manufacturing method thereof. [Means for solving the problem]

[0006] A support column according to one aspect of the present invention comprises a column-shaped column member having an opening at its upper end, and a support member disposed within the column member and supporting a display member having a rod-shaped portion that is inserted into the internal space of the column member through the opening, wherein the column member is formed from a material that is deformable so as to be able to recover its original shape even when subjected to an external force.

[0007] In a support column according to one aspect of the present invention, the support member has a flat bottom plate portion and a cylindrical portion rising from the bottom plate portion.

[0008] In a support column according to one embodiment of the present invention, the support column described in claim 2 has a cylindrical column body having the opening at its upper end and a base attached to the lower end of the column body.

[0009] In one aspect of the support column of the present invention, the tubular portion is arranged within the column body, and further includes a cylindrical member arranged between the outer peripheral surface of the tubular portion and the inner peripheral surface of the column body.

[0010] In a support column according to one aspect of the present invention, the cylindrical member has a tapered surface formed thereon, the diameter of which decreases from the upper end side to the lower end side of the cylindrical member.

[0011] The support column according to one aspect of the present invention further includes a flow path member that forms a flow path for draining water, connecting the internal space within the tubular portion with the external space of the support column.

[0012] The support column according to one aspect of the present invention further includes a cap member that closes the opening of the column member.

[0013] In a support column according to one aspect of the present invention, the opening of the column member supports the rod-shaped portion.

[0014] A support column according to another aspect of the present invention comprises a columnar column member having an opening at the upper end, the opening supporting a display member having a rod-shaped portion that is inserted into the internal space of the column member, and the column member is formed from a material that is deformable so as to be able to recover its original shape even when subjected to an external force.

[0015] A method for manufacturing a support column according to one aspect of the present invention comprises a column-shaped column member having an opening at its upper end, a support member placed within the column member, and a display member having a rod-shaped portion inserted into the internal space of the column member through the opening, wherein the column member is formed from a material that can be deformed so as to be able to recover even when subjected to the action of an external force, and includes a step of inserting the rod-shaped portion into the column member through the opening of the column member and supporting the rod-shaped portion with the support member. [Effects of the Invention]

[0016] According to the present invention, it is possible to provide a support column that can support a display member in a conspicuous manner, and a method for manufacturing the same. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a front view schematically showing the structure of a support column 1 according to one embodiment of the present invention. [Figure 2] FIG. 2 is a cross-sectional view taken along line 2-2 in FIG. [Figure 3] FIG. 1 is a bottom view of a support column 1 according to an embodiment of the present invention. [Figure 4] FIG. 2 is a perspective view showing a schematic structure of a support member 3 according to one specific example. [Figure 5] FIG. 5 is a partially enlarged cross-sectional view taken along line 5-5 in FIG. 4. [Figure 6] 1 is a cross-sectional view showing a usage mode of a support pole 1 according to an embodiment of the present invention. [Figure 7] FIG. 10 is a perspective view schematically showing the structure of a support member 3A according to another specific example. [Figure 8] FIG. 10 is a plan view schematically showing the structure of a support member 3A according to another specific example. [Figure 9] FIG. 10 is a partial plan view schematically showing the structure of a support member 3A according to another specific example. DETAILED DESCRIPTION OF THE INVENTION

[0018] An embodiment of the present invention will be described below with reference to the accompanying drawings. Fig. 1 is a front view schematically showing the structure of a support column 1 according to an embodiment of the present invention. As shown in Fig. 1, the support column 1 has a column member 2. The column member 2 has a base 21 and a column-shaped column main body 22 attached to the base 21. In this example, the base 21 is formed in an annular shape around the axis x. The base 21 extends from the column main body 22 in a roughly disk-like shape in a horizontal direction perpendicular to the axis x. Meanwhile, the column main body 22 rises vertically from the base 21 along the axis x. In this example, the column main body 22 is formed in a cylindrical shape centered on the axis x.

[0019] The column body 22 may be fixed to the base 21 using fixing members (not shown) such as bolts and nuts, or may be attached to the base 21 using, for example, an adhesive. The support column 1 is supported on a contact surface such as the ground by the base 21. The base 21 may be fixed to an installation surface using, for example, an adhesive or anchor bolts (not shown). In this example, one or more reflective layers 23 are formed on the outer circumferential surface of the column body 22 adjacent to the upper end of the column body 22, each extending in the circumferential direction. The reflective layer 23 is formed, for example, from a high-intensity prism-type reflective sheet. In this example, three annular reflective layers 23 are arranged in the vertical direction.

[0020] A cap member 24 that closes the internal space of the pillar body 22 is disposed at the upper end of the pillar body 22. The cap member 24 is removably attached to the pillar body 22. In this example, the cap member 24 is connected to the pillar body 22 by a connecting member 25 such as a chain. One end of the connecting member 25 is connected to an annular engaging portion 24a formed on the cap member 24. Meanwhile, the other end of the connecting member 25 is connected to an annular engaging portion 22a attached to the outer circumferential surface of the pillar body 22. The engaging portion 22a may be formed integrally with the pillar body 22. The connecting member 25 allows the cap member 24, even when removed from the pillar body 22, to be held hanging from the pillar body 22.

[0021] The pillar member 2, i.e., the base 21 and the pillar body 22, are both made of a material that is deformable and can recover its original shape even when subjected to an external force. Specifically, when an external force is applied to the pillar member 2, for example, by contact with a vehicle or a pedestrian, the pillar member 2 can elastically deform without breaking. Furthermore, when the external force is released, the pillar member 2 has the restoring ability to recover its original shape. The pillar member 2 is made of an elastic material such as polyurethane elastomer. However, the pillar member 2 may be made of other resin materials or the like that have similar flexibility. Furthermore, the cap member 24 is made of the same elastic material as the pillar member 2. The base 21 may be made of a material different from that of the pillar body 22.

[0022] FIG. 2 is a cross-sectional view taken along line 2-2 in FIG. 1. Referring to both FIGS. 1 and 2, the pole body 22 is formed into a hollow cylindrical shape around the axis x. That is, the pole body 22 has a circular outline in a cross section perpendicular to the axis x. The lower end 22b of the pole body 22 is open. Meanwhile, the upper end 22c of the pole body 22 is closed by a construction light 22d. The construction light 22d is formed into a cylindrical shape centered on the axis x. The construction light 22d has a light-emitting element (not shown), such as an LED (light-emitting diode) that can emit light in various colors. The light-emitting element can emit light using power supplied from a battery, such as a cell, that is also incorporated into the construction light 22d.

[0023] An opening 22e is formed in the construction light 22d. The opening 22e is connected to the space inside the pole body 22. The opening 22e is closed by the cap member 24 described above. The opening 22e defines, for example, a cylindrical space centered on the axis x. The cap member 24 has a flat, disk-shaped main body 24b, the aforementioned engagement portion 24a that protrudes upward from the main body 24b along the axis x, and a protruding portion 24c that protrudes downward from the main body 24b along the axis x. The protruding portion 24c is formed in a cylindrical shape corresponding to the opening 22e. The opening 22e is closed by the main body 24b and the protruding portion 24c.

[0024] The main body 24b, the engaging portion 24a, and the protruding portion 24c are integrally formed from the aforementioned elastic material. A mechanism for restricting rotation of the cap member 24 about the axis x may be incorporated into the support column 1. This mechanism may include, for example, a convex portion that protrudes radially outward from the outer peripheral surface of the protruding portion 24c about the axis x, and a concave portion that is recessed radially outward from the inner peripheral surface of the opening 22e about the axis x, which faces the outer peripheral surface of the protruding portion 24c (all not shown). The convex portion that protrudes radially outward of the protruding portion 24c engages with the concave portion that is recessed radially outward of the opening 22e, thereby restricting rotation of the cap member 24 about the axis x.

[0025] FIG. 3 is a bottom view of a support column 1 according to one embodiment of the present invention. Referring to FIGS. 2 and 3 together, the support column 1 further includes a support member 3 disposed within the column member 2. The support member 3 has a flat bottom plate portion 31 extending along an imaginary plane perpendicular to the axis x, and a cylindrical portion 32 rising from the bottom plate portion 31 along the axis x. The bottom plate portion 31 is formed in a circular shape around the axis x as a whole. The bottom plate portion 31 extends along the lower surface of the column member 2, i.e., the base 21. The diameter of the bottom plate portion 31 is set smaller than the diameter of the lower surface of the base 21. In this manner, the bottom plate portion 31 is disposed within the base 21. In this example, the upper surface of the bottom plate portion 31 supports the lower end 22b of the column main body 22 of the column member 2.

[0026] In this example, the tubular portion 32 is formed in a cylindrical shape centered on the axis x. That is, the tubular portion 32 is defined coaxially with the column main body 22. The diameter of the tubular portion 32 is defined to be smaller than the diameter of the column main body 22. For example, the diameter of the tubular portion 32 is set to be equal to or smaller than half the diameter of the column main body 22. Here, the diameter is the outer diameter defined by the outer peripheral surface of the column main body 22 and the outer diameter defined by the outer peripheral surface of the tubular portion 32. In this way, the tubular portion 32 is disposed inside the column main body 22. Moreover, the size, i.e., the diameter, of the bottom plate portion 31 may be set to be larger or smaller than the height of the tubular portion 32 from the bottom plate portion 31. Here, the height of the tubular portion 32 is set to be about half the diameter of the bottom plate portion 31. Moreover, in this example, the height of the tubular portion 32 is set to be about one-eighth the height of the column main body 22.

[0027] A cylindrical member 4 is disposed between the outer peripheral surface of the tubular portion 32 and the inner peripheral surface of the column main body 22. The tubular member 4 is formed in a cylindrical shape centered on the axis x. That is, the tubular member 4 is defined coaxially with the column main body 22 and the tubular portion 32. In this example, the tubular member 4 occupies the space between the outer peripheral surface of the tubular portion 32 and the inner peripheral surface of the column main body 22. The lower end of the tubular member 4 is supported on the upper surface of the bottom plate portion 31. Furthermore, the upper end of the tubular member 4 is disposed higher than the upper end of the tubular portion 32 in the direction along the axis x. In this example, the height of the tubular member 4 is set to be approximately six times the height of the tubular portion 32. Furthermore, the height of the tubular member 4 is set to be approximately three-quarters the height of the column main body 22.

[0028] The cylindrical member 4 has a first region 41 at the lower end, a second region 42 at the upper end, and a third region 43 defined between the first and second regions 41, 42. The inner diameters of the first, second, and third regions 43 are uniform. In this example, the second region 42 is located adjacent to the upper end of the cylindrical member 4. The outer peripheral surfaces of the first, second, and third regions 43 cooperate to define a uniform outer shape. The inner diameter of the first region 41 is larger than the inner diameter of the second region 42. The inner peripheral surface of the third region 43 connects the inner peripheral surfaces of the first and second regions 41 and 42. The inner peripheral surface of the third region 43 is thus defined by a tapered surface 44 whose diameter decreases from the upper end to the lower end of the cylindrical member 4. The tapered surface 44 is, for example, a truncated cone. The upper end of the cylindrical member 4 may be set to the same height as the cylindrical portion 32. In this case, the cylindrical member 4 may be formed of the first region 41 only.

[0029] As shown in FIGS. 2 and 3 , one or more holes 26 are formed in the base 21 on the outer periphery of the outer edge of the lower surface of the bottom plate portion 31 of the support member 3. The holes 26 extend, for example, parallel to the axis x. Each hole 26 allows passage of a fixing member such as an anchor bolt for fixing the base 21, i.e., the support pole 1, to the ground. In this example, three holes 26 are formed in the base 21, spaced equally apart around the axis x. Meanwhile, recesses 31a are formed on the outer edge of the bottom plate portion 31 of the support member 3, recessed inward around the holes 26 of the base 21. Note that if the support pole 1 is not fixed to the ground with anchor bolts or the like, the holes 26 do not need to be formed in the base 21.

[0030] FIG. 4 is a perspective view schematically illustrating the structure of a support member 3 according to one specific example. FIG. 5 is a partially enlarged cross-sectional view taken along line 5-5 in FIG. 4. Referring to FIGS. 2 to 5 together, a hole 33 is formed in the bottom plate portion 31, penetrating the bottom plate portion 31 along the axis x. The diameter of the hole 33 is set smaller than the diameter of the tubular portion 32. A groove portion 34 extending radially is formed in the lower surface of the bottom plate portion 31. The groove portion 34 connects the inner edge and the outer edge of the bottom plate portion 31. A flow path member 5 is disposed in the groove portion 34. The flow path member 5 connects the internal space of the tubular portion 32 with the external space of the support column 1. Specifically, the inner end of the flow path member 5 is connected to the interior of the tubular portion 32. Meanwhile, the outer end of the flow path member 5 is connected to the external space through a recess 21a formed in the lower end of the base 21.

[0031] As shown in FIG. 5 , in this example, the groove 34 is formed in a quadrangular shape such as a square in a cross section perpendicular to the longitudinal direction. Meanwhile, the flow path member 5 is similarly formed in a generally cylindrical shape in a cross section perpendicular to the longitudinal direction. In this example, one end of the flow path member 5 protrudes into the hole 33 of the bottom plate portion 31. Thus, the flow path member 5 forms a flow path for draining water from the internal space of the support column 1. The shapes of the groove 34 and the flow path member 5 described above are merely examples, and the flow path member 5 may be formed in other shapes. For example, instead of being cylindrical, the flow path member 5 may be formed in a rectangular tube shape or a U-shaped cross section. The groove 34 may be formed on the upper surface of the bottom plate portion 31, or may be formed as a slit penetrating from the upper surface to the lower surface of the bottom plate portion 31.

[0032] The cylindrical member 4 is made of a resin material such as epoxy resin. On the other hand, the support member 3, i.e., the bottom plate portion 31, the cylindrical portion 32, and the flow path member 5, are made of a metal material including, for example, stainless steel. The lower end of the cylindrical portion 32 is attached to the upper surface of the bottom plate portion 31 by, for example, welding. Specifically, the entire periphery of the edge of the lower end of the cylindrical portion 32 may be welded to the upper surface of the bottom plate portion 31. The support member 3 and the flow path member 5 may be made of a resin material. Similarly to the support member 3 and the flow path member 5, the connecting member 25 is made of a metal material such as stainless steel or a resin material.

[0033] Next, we will explain how to use the support pole 1. The support pole 1 is installed on the ground, for example, in a parking lot or on a road. In this example, we will assume that the support pole 1 is fixed to the ground using anchor bolts, adhesive, or the like. Figure 6 is a cross-sectional view showing how the support pole 1 is used in accordance with one embodiment of the present invention. A display member 10, such as a banner, is supported on the support pole 1. First, the cap member 24 is removed from the opening 22e at the upper end of the pole body 22. The connecting member 25 holds the cap member 24 in a state where it hangs from the outer circumferential surface of the pole body 22. In this way, the internal space of the pole body 22 is opened.

[0034] The display member 10 has, for example, a vertical pole (rod-shaped portion) 10a, a horizontal pole 10b, and a flag 10c attached to the vertical pole 10a. The vertical pole 10a of the display member 10 is inserted into the pole body 22 through the opening 22e. At this time, the lower end of the vertical pole 10a is guided into the tubular member 4, i.e., the tubular portion 32, by, for example, the tapered surface 44 of the tubular member 4. When the lower end of the vertical pole 10a reaches the upper surface of the bottom plate portion 31, the vertical pole 10a is supported within the tubular portion 32 of the support member 3. In this way, the vertical pole 10a of the display member 10 is supported by the tubular portion 32. At this time, the vertical pole 10a may be supported not only by the tubular portion 32 but also by the opening 22e of the tubular member 4 and / or the pole body 22.

[0035] According to the support pole 1 described above, the support member 3 for supporting the vertical pole 10a is disposed within the pole member 2. Specifically, the bottom plate portion 31 of the support member 3 is disposed within the base 21 of the pole member 2, and the tubular portion 32 of the support member 3 is disposed within the pole body 22 of the pole member 2. The pole member 2 is formed from a material that is deformable and recovers its shape when subjected to force. Therefore, even if a pedestrian comes into contact with the support pole 1, i.e., the pole member 2, the pedestrian can be prevented from coming into direct contact with the support member 3. Furthermore, even if an external force is applied due to contact, the elastic deformation of the pole member 2 can prevent the pedestrian from being injured. As a result, the support pole 1 can safely support the display member 10. Furthermore, because the display member 10 rises from the upper end of the pole member 2, the support pole 1 can support the display member 10 in a conspicuous manner.

[0036] Furthermore, a cylindrical member 4 is disposed between the inner peripheral surface of the column body 22 of the column member 2 and the outer peripheral surface of the tubular portion 32 of the support member 3. The cylindrical member 4 has a tapered surface 44 whose diameter decreases from the upper end to the lower end of the cylindrical member 4. When the lower end of the vertical pole 10a is inserted through the opening 22e of the column body 22, the tapered surface 44 easily guides the lower end of the vertical pole 10a into the tubular portion 32 of the support member 3. Therefore, the lower end of the vertical pole 10a can be easily inserted from the opening 22e to the tubular portion 32 of the support member 3. Moreover, in the support column 1, the opening 22e of the column body 22 is positioned above the upper end of the tubular portion 32. Therefore, the opening 22e can assist in supporting the vertical pole 10a. Such support by the opening 22e prevents the vertical pole 10a from tilting, improving the appearance of the display member 10 and reducing the installation space of the support column 1.

[0037] Furthermore, when the cap member 24 is removed and the opening 22e is open, it is expected that rainwater or the like will infiltrate the column body 22 through the opening 22e. The rainwater or the like will reach the inside of the tubular portion 32, for example, by running along the inner circumferential surface of the column body 22 or the inner circumferential surface of the tubular member 4. The rainwater or the like in the tubular portion 32 flows into the flow path member 5 through the holes 33 formed in the bottom plate portion 31, and then passes through the flow path member 5 and is discharged to the space outside the support column 1. In this way, the column member 2 is drained. Therefore, it is possible to prevent liquids such as rainwater from accumulating in the column member 2, particularly in the tubular portion 32. When the support member 3 and the flow path member 5 are made of stainless steel, corrosion of the support member 3 and the flow path member 5 by liquids such as rainwater can be suppressed.

[0038] Furthermore, for example, when the vertical pole 10a is not inserted into the pole member 2, the opening 22e of the pole member 2 is closed by the cap member 24. The cap member 24 can prevent rainwater and the like from entering the pole member 2. In this case, the support pole 1 itself can be used as a lane separator. For example, the support pole 1 can be used as a signpost to clearly indicate the boundaries between roadways or between sidewalks and roadways on public roads, expressways, parking lots, etc. In this case, the pole member 2 may be colored to blend in with the environment in which it is installed. For example, in public roads, expressways, and parking lots of commercial facilities, the pole member 2 may be colored in an eye-catching color such as orange or green. For example, in parking lots of shrines, temples, and hotels, the pole member 2 may be colored in a subdued color such as beige.

[0039] Furthermore, the support pole 1 is fixed to an installation surface such as the ground by, for example, anchor bolts, adhesives, etc. When the support pole 1 is not supporting the display member 10, it can be used as a lane dividing marker, as described above. Therefore, there is no need to move the support pole 1 even when it is not supporting the display member 10. However, when the support pole 1 is not fixed to the installation surface, it can be moved to, for example, the position where the display member 10 is desired to be displayed. Moreover, the pole member 2 is formed from a material that can be deformed and restored to its original shape even when a force is applied. Therefore, even if a vehicle, pedestrian, etc. comes into contact with the pole member 2, damage or injury to the vehicle or pedestrian can be prevented, and damage to the pole member 2 can also be avoided.

[0040] The support pole 1 described above can be used for a variety of purposes depending on the installation location. For example, when installed on a highway, the display member 10 may display an emergency such as an accident or disaster occurring on the highway. The display member 10 may also display a route guide or waiting area at an event venue. Furthermore, the display member 10 may display a warning when a vehicle is stopped on the road, or may display the boundary of the road shoulder during snowfall or a sign for snow removal work. Furthermore, the display member 10 may display a message welcoming foreign guests visiting Japan or the national flag, or may display the national flag or municipal flag during national holidays or festivals.

[0041] FIG. 7 is a perspective view schematically showing the structure of a support member 3A according to another specific example. FIG. 8 is a plan view schematically showing the structure of the support member 3A. FIG. 9 is a partial plan view schematically showing the structure of the support member 3A. Referring to FIGS. 7 to 9 together, this support member 3A incorporates a flow path member 5A instead of the flow path member 5 described above. Note that the flow path member 5A is not shown in FIG. 8. As shown in FIG. 8 in particular, a notch, i.e., a slit 35, which connects the hole 33 and the outer edge of the bottom plate portion 31, is formed in the bottom plate portion 31. The slit 35 penetrates from the upper surface to the lower surface of the bottom plate portion 31. The flow path member 5A is disposed in this slit 35.

[0042] As shown in FIG. 7 in particular, the flow path member 5A is formed into a flat U-shape in a cross section perpendicular to its longitudinal direction. In this example, the flow path member 5A is housed in the slit 35. That is, the height of the flow path member 5A in the direction along the axis x matches the thickness of the bottom plate portion 31. One end of the flow path member 5A is connected to the hole 33, and the other end of the flow path member 5A is connected to the external space via the recess 21a formed in the base 21 of the pillar member 2, as described above. Such a flow path member 5A also forms a flow path for draining water from the pillar member 2, i.e., the support pillar 1. Other components similar to those of the support member 3 described above are assigned the same reference numerals, and redundant explanations will be omitted here.

[0043] In the support column 1 described above, the column body 22 may have a polygonal outline other than a circle, such as a triangle or a rectangle, in a cross section perpendicular to the axis x. Similarly, the tubular portion 32 of the support member 3 may have another shape, such as a rectangular tube. In addition, in the above-described embodiment, the entire support member 3 is disposed inside the column member 2, but, for example, a part of the bottom plate portion 31 may be partially exposed to the outside from the base 21. Furthermore, the formation of the second region 42 may be omitted in the tubular member 4. That is, a third region 43 is formed at the upper end of the tubular member 4. In this case, the upper end of the tapered surface 44 of the third region 43 may be continuous with the inner circumferential surface of the column body 22.

[0044] Although the present invention has been described above through the above embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments. It will be apparent to those skilled in the art that various modifications and improvements can be made to the above embodiments. It is clear from the claims that such modifications and improvements can also be included within the technical scope of the present invention.

[0045] The above-described embodiments are intended to facilitate understanding of the present invention and are not intended to limit the scope of the present invention. Furthermore, the above-described embodiments do not limit the scope of the present invention, and the present invention may include any and all applications. The components of the above-described embodiments, as well as their arrangement, materials, conditions, shapes, sizes, and the like, are not limited to those exemplified and may be modified as appropriate.

[0046] For example, the present invention includes differences that occur during implementation, such as manufacturing tolerances. Furthermore, within the scope of technical inconsistency, components shown in different embodiments can be partially substituted or combined. Furthermore, each configuration can be appropriately and selectively combined to achieve at least some of the above-described problems and effects. [Explanation of symbols]

[0047] 1 support column, 2 column member, 3, 3A support member, 4 cylindrical member, 5, 5A flow path member, 10 display member, 10a vertical pole (rod-shaped portion), 10b horizontal pole, 10c flag, 21 base, 21a recess, 22 column body, 22a engagement portion, 22b lower end, 22c upper end, 22d construction light, 22e opening, 23 reflective layer, 24 cap member, 24a engagement portion, 24b body, 24c protruding portion, 25 connecting member, 26 hole, 31 bottom plate portion, 31a recess, 32 cylindrical portion, 33 hole, 34 groove portion, 35 slit (notch), 41 first region, 42 second region, 43 third region, 44 tapered surface, x axis

Claims

1. a columnar member having an opening at its upper end; a support member disposed within the pillar member and supporting a display member having a rod-shaped portion that is inserted into the space inside the pillar member through the opening, The support column is formed from a material that is deformable and can be restored even when subjected to an external force.

2. The support member is A flat bottom plate portion, The support column according to claim 1 , further comprising: a cylindrical portion rising from the bottom plate portion.

3. The pillar member is A cylindrical pillar body having the opening at its upper end; The support pole according to claim 2 , further comprising: a base attached to a lower end of the pole body.

4. The cylindrical portion is disposed within the column body, The support column according to claim 3 , further comprising a cylindrical member disposed between an outer peripheral surface of the cylindrical portion and an inner peripheral surface of the column body.

5. The support column according to claim 4 , wherein the cylindrical member has a tapered surface whose diameter decreases from the upper end side to the lower end side of the cylindrical member.

6. The support column according to claim 2 , further comprising a flow path member that forms a flow path for draining water, connecting an internal space within the tubular portion with an external space of the support column.

7. The support post of claim 1 , further comprising a cap member closing the opening in the post member.

8. The support post of claim 1 , wherein the opening in the post member supports the rod portion.

9. a columnar member having an opening at an upper end, the opening supports a display member having a rod-shaped portion that is inserted into the space inside the pillar member; The support column is formed from a material that is deformable and can be restored even when subjected to an external force.

10. A method for manufacturing a support column, comprising: a columnar column member having an opening at an upper end; a support member disposed within the column member; and a display member having a rod-shaped portion inserted into an internal space of the column member through the opening, the column member being formed from a material that is deformable and can be restored even when subjected to the action of an external force, A method for manufacturing a support column, comprising the steps of inserting the rod-shaped portion into the column member through the opening of the column member and supporting the rod-shaped portion with the support member.

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