Support column, and manufacturing method of the same or holding device used for assembling support column, and lightning strike suppression device using support column

Abstract

To provide a long support pillar which is light-weight and which can be assembled easily.SOLUTION: A support column is a hollow support column X in which a linear member L can be inserted inside, and it includes a column body 1 of a non-conductor material, and a covering layer 2 for covering the surface of the column body 1. The covering layer 2 is resin which has waterproofness, and at a butted part J where the plurality of column bodies 1 is connected in an axial direction, a reinforcement member 3 is provided. Also, in a favorable form of this invention, the resin contains a plurality of organic compounds which cures at a normal temperature by a chemical reaction.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a support pole that is lightweight and easy to assemble and that can be applied to outdoor facilities, a lightning suppression device that uses the support pole, and a holding device that can be used to assemble the support pole. [Background technology]

[0002] With the development of IT, the importance of preventing infrastructure damage caused by lightning strikes is increasing. As the electrical equipment that needs to be protected from lightning strikes is becoming more diverse, both for movable and immovable property, methods have been devised that can be installed anywhere outdoors, not just on the roof of a building. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 7405348 Summary of the Invention [Problem to be solved by the invention]

[0004] The mobile lightning suppression device described in Patent Document 1 supports the lightning suppression device body at a predetermined height using support poles, and uses a base with a mobile trailer to move the lightning suppression device to an outdoor site such as an airplane parking lot and install it at a desired location. However, the support poles that support the lightning suppression device body are made of metal to maintain electrical connection with the ground and are heavy, and on-site installation requires a considerable amount of equipment and personnel, which places significant constraints on their introduction and operation. Furthermore, for structures with such support poles, depending on the installation location, it may not be possible to introduce large-scale equipment such as heavy machinery to the site. In such locations, support poles that can be safely assembled by hand are preferable.

[0005] In view of the above problems, the present invention has an object to provide a lightweight, long support column that can be easily assembled. [Means for solving the problem]

[0006] The present invention, which solves the above problem, is a hollow support pillar into which a linear member can be inserted, comprising a pillar body made of a non-conductive material and a coating layer that covers the surface of the pillar body, the coating layer being a waterproof resin, and a reinforcing member being provided at the butt joint where multiple pillar bodies are connected axially. This configuration allows for a lightweight, long support column that can be easily assembled.

[0007] In a preferred embodiment of the present invention, the reinforcing member is a flexible reinforcing member that can be attached to the column body, the flexible reinforcing member is wrapped around the butt portion, and is further enclosed in the covering layer. With this configuration, the connection portion of the support pillar can be easily reinforced.

[0008] In a preferred embodiment of the present invention, the reinforcing member is a penetrating reinforcing member that can penetrate into the interior of the column body, and the penetrating reinforcing member has a through hole in the penetration direction and penetrates into the interior of the butt portion. Such a configuration makes it easier to reinforce and align the connection portions of the support posts.

[0009] In a preferred embodiment of the present invention, the resin contains a plurality of organic compounds that harden at room temperature through a chemical reaction. This configuration makes it possible to reinforce the support column while preventing deterioration of the column body due to moisture.

[0010] In a preferred embodiment of the present invention, the resin comprises at least one member selected from the group consisting of an isocyanate, a polyamine, and a polyol. This configuration can reinforce the support column to increase its tensile strength and weather resistance.

[0011] In a preferred form of the present invention, the lightning suppression device comprises a support pillar, a lightning suppression device main body supported by the support pillar, and a base on which the support pillar can be erected, and the linear member is made of a conductive material and is inserted into the inside of the support pillar to enable the lightning suppression device main body to be grounded. With this configuration, a lightning suppression device can be provided that is lightweight, easy to assemble, and easy to move to another installation location.

[0012] In a preferred embodiment of the present invention, the holding device is capable of holding the support column in a straight line and includes supports that can be contacted at at least three points surrounding the central axis in a cross section at a predetermined position in the axial direction of the support column, and at least one of the supports has a movable member that can change the distance from the central axis of the support column. This configuration allows a lightweight, easily assembled, long support column to be held without bending.

[0013] The present invention, which solves the above-mentioned problems, is a method for manufacturing a hollow support pillar through which a linear member can be inserted, and includes a coating process for forming a waterproof coating layer on the surface of the pillar body made of a non-conductive material, and a connecting process for connecting multiple pillar bodies in the axial direction. The formation of the coating layer includes a hardening process for hardening the resin through a chemical reaction, and the connecting process includes a reinforcing process for attaching a reinforcing member to the butt joint connecting the multiple pillar bodies. This manufacturing method allows lightweight, long support columns to be easily assembled. [Effects of the Invention]

[0014] The present invention, which solves the above problems, provides a lightweight, easily assembled long support column. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is an explanatory diagram showing a basic configuration of a support column according to a first embodiment of the present invention. FIG. [Figure 2] FIG. 2 is an explanatory diagram showing a configuration for connecting support columns according to the first embodiment of the present invention. [Figure 3]1 is an explanatory diagram showing the configuration of a lightning suppression device incorporating a support pole according to a first embodiment of the present invention. FIG. [Figure 4] 1 is an explanatory diagram showing the configuration of a lightning suppression device main body supported by a support pole according to a first embodiment of the present invention. FIG. [Figure 5] 10A and 10B are explanatory diagrams showing a modified example of the configuration of the support columns according to the first embodiment of the present invention. [Figure 6] 1A and 1B are a perspective view and a cross-sectional view showing the configuration of a holding device capable of holding a support pole according to a first embodiment of the present invention. [Figure 7] 1 is an explanatory diagram showing the configuration of a workbench on which a support column or a holding device can be placed according to a first embodiment of the present invention. FIG. [Figure 8] 10 is an explanatory diagram showing a configuration for supporting a support pole or an assembly of support poles to support a lightning strike suppression device main body according to a second embodiment of the present invention. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, the support pole X, the lightning suppression device Y, and the holding device Z according to each embodiment of the present invention will be described with reference to the drawings. The description will be made in detail in the order of the configuration of the embodiment, the method of implementation, and other examples. The following embodiments are merely examples of the present invention, and the present invention is not limited to the following embodiments.

[0017] First Embodiment As shown in Figures 1(a), 1(b), 1(c), 2(a), 2(b), and 2(c), the support column X of this embodiment is a hollow column body comprising a column body 1 and a coating layer 2, and further comprising a reinforcing member 3 when multiple columns are connected. In each drawing, Fig. 1(a) is an explanatory diagram showing the configuration of the pillar body 1 and the state in which the material of the coating layer 2 is sprayed onto the pillar body 1, Fig. 1(b) is a perspective view showing the basic configuration of the support pillar X, and Fig. 1(c) is an enlarged view of the vicinity of the end of the support pillar X shown in Fig. 1(b). Fig. 2(a) is an explanatory diagram showing the components when two support pillars X are connected to form a longer support pillar X, Fig. 2(b) is an explanatory diagram showing the process of connecting two support pillars X, and Fig. 2(c) is an explanatory diagram showing the appearance of the long support pillar X after the connection of the two support pillars X is completed. Fig. 3(a) is an explanatory diagram showing the configuration of a lightning suppression device Y incorporating a support pillar X, Fig. 3(b) is a partial cross-sectional view showing the internal configuration of the connection of the support pillars X, and Fig. 3(c) is an explanatory diagram showing a modified example of a support pillar mounting part 52 (described below) to which the support pillar X can be mounted. FIG. 4 is a cross-sectional view showing the configuration of the lightning suppression device main body 4, which constitutes the main part of the lightning suppression device Y and is supported by the support pole X. FIG. 5(a) is a perspective view showing a modified example of the configuration of the pole main body 1, and FIG. 5(b) is an enlarged view of the vicinity of the end of FIG. 5(a). FIG. 6(a) is a perspective view showing the configuration of the support pole X and the holding device Z that can hold the support pole X in a straight line, and FIG. 6(b) is a cross-sectional view of plane A of FIG. 6(a). FIG. 7(a) is an explanatory diagram showing a folded state (hereinafter referred to as the folded state) of a workbench 8 on which the support pole X or the holding device Z can be placed, FIG. 7(b) is an explanatory diagram showing a deployed state (hereinafter referred to as the deployed state) of the workbench 8, and FIG. 7(c) is an explanatory diagram showing a state in which the holding device Z holding the support pole X is placed on the deployed workbench 8. In each drawing, any direction on a plane perpendicular to the vertical direction is referred to as the horizontal direction, and any direction on a plane perpendicular to the central axis B is referred to as the cross-sectional direction.

[0018] As shown in FIG. 1(a), the pole body 1 is a hollow cylindrical member that provides the basic shape of the support pole X. Furthermore, the pole body 1 is preferably formed from a non-conductive material that is also lightweight and highly weather-resistant. Examples of such a material include paper, wood, plastic, and resin (e.g., polyvinyl chloride resin). This configuration makes the support pole X lightweight, easy to extend, and easy to handle even when it is long. Furthermore, when the support pole X is applied to the lightning suppression device Y described below, it is possible to reduce the exposure of conductive materials, thereby improving the lightning suppression effect.

[0019] As shown in Figures 1(b) and 1(c), the covering layer 2 is a laminated portion that covers the surface of the pillar body 1, particularly the outer peripheral surface, and at the same time increases the thickness of the pillar body 1 while also reinforcing it. The covering layer 2 is made of a material that is waterproof, highly weather-resistant, and has a higher tensile strength than the material of the pillar body 1, and resin that meets these requirements is particularly preferred. This configuration allows the support pillar X to remain lightweight while being strong enough to suppress flexural deformation even when it is long.

[0020] The resin forming the coating layer 2 is preferably a resin that can be hardened at room temperature by drying or chemical reaction. The resin is also preferably a material that is resistant to deterioration by light, ultraviolet rays, etc. With the above-described configuration, the support column X can be used outdoors for a long period of time.

[0021] The resin forming the coating layer 2 contains at least one selected from the group consisting of isocyanate, polyamine, and polyol. The coating layer 2 is preferably a polyurea resin produced by a chemical reaction between isocyanate and polyamine, and more preferably a polyol is mixed in addition to the polyurea resin. This configuration provides sufficient waterproofing, weather resistance, and tensile strength for the support column X used outdoors.

[0022] As shown in Figure 2(a), when connecting multiple support columns X each having a column body 1 and a coating layer 2, a reinforcing member 3 is added to the support column X at the butt joint J where the column bodies 1 are connected in the axial direction (lengthwise direction). The reinforcing member 3 includes a flexible reinforcing member 31 and a penetrating reinforcing member 32, and reinforces the elongated support column X. In the following explanation, the coating layer 2 that has been coating the column body 1 before connection is referred to as the main coating layer 21, and the newly added coating layer 2 upon connection is referred to as the sub-coating layer 22.

[0023] The flexible reinforcing member 31 is a sheet-like member formed as an assembly of fibers with high tensile strength, and as shown in FIG. 2(b), it is wrapped around the main coating layer 21 so as to straddle the two support columns X, thereby positioning the two support columns X on the same axis at the butting portion J. The flexible reinforcing member 31 is preferably made of a material that has both sufficient tensile strength and flexibility, and metal fibers are particularly preferred, but other materials may be used as long as they do not corrode the coating layer 2. Furthermore, the flexible reinforcing member 31 is preferably configured to be resistant to breakage, and in particular, to have a net structure (mesh, etc.).

[0024] The penetration reinforcement member 32 is a cylindrical member having a radius (or cross-sectional outer edge shape) substantially the same as the inner peripheral surface of the column main body 1, and can penetrate into the column main body 1. The penetration reinforcement member 32 has a through-hole 321 in the direction of penetration into the column main body 1 (penetration direction or axial direction), and maintains the hollow space inside the support column X uninterrupted. The penetration reinforcement member 32 penetrates into the column main body 1 so as to straddle the two support columns X, thereby positioning the two support columns X on the same axis at the butt joint J. With this configuration, the support columns X can be connected or reinforced without being visible from the outside of the support columns X, and the design of the support columns X can be improved.

[0025] The penetration reinforcement member 32 may be provided at any position other than the butt joint J, as long as it penetrates into the interior of the column body 1. For example, the column body 1 and the penetration reinforcement member 32 may be configured to have approximately the same length, with their ends offset from each other by a predetermined length in the axial direction (penetration direction). With this configuration, the support column X can be reinforced appropriately according to the weight of the object to be supported by the support column X, the usage environment (weather, etc.), and the ease of connecting multiple support columns X.

[0026] As shown in FIG. 2(c), the secondary coating layer 22 is an additional coating layer 2 applied over the main coating layer 21 or the flexible reinforcing member 31 so as to fill the joint between the two support columns X at the butt J, and is made of the same material as the main coating layer 21. With this configuration, the two support columns X are connected to form a single long support column X. Furthermore, as the coating layer 2 completely encapsulates the flexible reinforcing member 31, the flexible reinforcing member 31 is not affected by external weather, etc., and the support column X can be used for a longer period of time.

[0027] The length of the support column X can be determined as needed by repeating the above-described connection. In the configuration shown in Fig. 2(c), two support columns X are connected, but by repeating the same connection configuration using the reinforcing member 3 and the sub-coating layer 22 at the butt joint J of multiple support columns X, a single continuous long support column X is formed.

[0028] As shown in Figure 3(a), the lightning suppression device Y comprises a support pole X, a lightning suppression device main body 4 that is supported by the support pole X and forms the core of lightning suppression, and a base 5 on which the support pole X can be erected, and can be installed and dismantled at a desired location as needed. A connecting member C is provided at the connection between the lightning suppression device main body 4 and the support pole X, and as shown in Figure 3(b), a linear member L is inserted inside the support pole X. The lightning suppression device Y also comprises a support wire W as needed.

[0029] 3(b), the linear member L is a conductive member that can be inserted into the support pole X, and in the lightning suppression device Y, it is inserted vertically through the entire support pole X, electrically connecting the lightning suppression device main body 4 and the foundation 5. Furthermore, the linear member L is inserted through the through hole 321 in the portion where the penetration reinforcement member 32 is provided. With this configuration, the lightning suppression device main body 4 is grounded in a manner that is not visible from the outside, improving the lightning protection effect of the lightning suppression device Y and also improving the design of the entire device.

[0030] The lightning suppression device main body 4 is a device that constitutes the main part of the lightning suppression device Y, and as shown in Figure 4, has an inner electrode 41 formed of a conductive material in an approximately spherical or spherical shell shape, an outer electrode 42 (which may be divided into two, a first outer electrode 421 and a second outer electrode 422, or may be molded as a single unit) that is formed in an approximately concentric spherical shell shape with a predetermined gap between the inner electrode 41, a connecting post 43 made of a conductive material that supports the inner electrode 41 and enables it to be connected to the ground surface G, and a spacer 44 made of an insulating material that maintains the gap between the inner electrode 41 and the outer electrode 42 and supports the outer electrode 42.

[0031] The lightning suppression device main body 4 is connected to the support pole X via the connecting pole 43 and the connecting member C. At this time, the linear member L is inserted throughout the inside of the support pole X, and the inner electrode 41, the connecting pole 43, the linear member L, and the base part 5 are all made of conductive materials and are assembled in an electrically connected configuration, so that the inner electrode 41 is grounded and the lightning suppression device main body 4 acts as a capacitor, suppressing the occurrence of lightning strikes.

[0032] As shown in Fig. 4, the connection member C has a pair of flanges C1 and a reinforcing tube C2, and enables connection between the lightning suppression device main body 4 and the support pole X. The flange C1 is a flat plate-like member that is fixed by a surface-direction fixing connection (by adhesive bonding, bolting, etc.), and the reinforcing tube C2 is a thin-walled tubular member that stands upright from the flange C1 on the support pole X side. The connection member C has the reinforcing tube C2 inserted into the inside from the end of the support pole X, and the flange C1 fixedly connects the lightning suppression device main body 4. This configuration not only reinforces the upper end of the support pole X, but also stabilizes the connection with the lightning suppression device main body 4.

[0033] As shown in Figure 3(a), the base 5 is a structure made of a conductive material and has a frame 51, a support pole mounting portion 52, and a protrusion 53. It is placed on the ground surface G and allows the support pole X to be erected on top of it. This allows the lightning suppression device main body 4 to be grounded via the support pole X, and in particular the linear member L inserted inside the support pole X.

[0034] The frame 51 is a structure that determines the basic shape of the foundation 5, and is made up of a rectangular outer frame made up of columnar frame materials, particularly H-shaped steel beams, with a bottom plate attached to its bottom, and is placed on and grounded to the ground surface G. The frame 51 has a sufficient horizontal area and is weighted by H-shaped steel beams or the like, which allows it to adequately support the support column X and the lightning suppression device main body 4 even when no fasteners (anchors, etc.) are driven into the ground surface G, and also ensures stable contact with the ground surface G, allowing the lightning suppression device main body 4 to be stably grounded.

[0035] The support pole mounting part 52 is provided in the horizontal center of the frame body 51 and is a structure having an insertion part 521, a movable bottom plate 522, and an upright joint part 523, and allows the support pole X to be attached and raised or lowered. With this configuration, the horizontal width of the frame body 51 can be effectively used to support the lightning suppression device main body 4 and the support pole X.

[0036] The insertion section 521 is a cylindrical member into which the support column X can be inserted and supported upright in the height direction. The insertion section 521 has ribs or rounded corners that reinforce the connection with the movable bottom plate 522. The movable bottom plate 522 is a flat member that closes the bottom of the insertion section 521 and expands further. The movable bottom plate 522 is rotatably connected to the frame body 51 via the erection joint 523. The movable bottom plate 522 can abut the upper surface of the frame body 51. With this configuration, when the support column X connected to the lightning suppression device main body 4 is raised to erect, the movable bottom plate 522 stops the rotation of the erection joint 523, preventing the support column X from being raised too far and tipping over to the other side. This allows for safe installation of the lightning suppression device Y. Furthermore, when removing the lightning suppression device Y, the support column X only tip in one direction, making it easier to ensure safety during the work.

[0037] The erection joint 523 is an axial joint (hinge joint) that can rotate about a horizontal axis, allowing the insertion part 521 and the movable bottom plate 522 to rotate from the horizontal direction to the vertical direction. Preferably, the insertion part 521 is configured to tilt toward the longitudinal side of the frame body 51, in other words, the axis of rotation is configured to be parallel to the lateral side of the frame body 51. With this configuration, the entire longitudinal direction of the frame body 51 can withstand the fluctuations in load that occur when erecting or tilting the lightning suppression device main body 4 and the support pole X, making the work safer.

[0038] Protrusion 53 is a columnar member that protrudes vertically upward from frame body 51, and the protruding height is higher than the highest point of support column mounting portion 52. With this configuration, when multiple frame bodies 51 are stacked when not in use, protrusion 53 of the lower frame body 51 receives the bottom surface of the upper frame body 51, so that it does not come into contact with support column mounting portion 52, and frame body 51 can be easily lifted and moved by forklift or by human power.

[0039] 3(a) and 3(b), the guy wire W is a wire stretched in multiple directions between any position on the support pole X incorporated in the lightning suppression device Y and the vicinity of the peripheral edge of the frame body 51, and its tension suppresses the horizontal shaking of the support pole X. Furthermore, the connection of the guy wire W to the support pole X is not particularly limited as long as it is strong enough to prevent it from falling off, but examples include fastening the guy wire W to a ring-shaped mounting fixture or enclosing it when forming the secondary coating layer 22.

[0040] As a modification of the above-described foundation part 5, as shown in Fig. 3(c), the support pole mounting part 52 may be fixed directly to the ground surface G without any other components of the foundation part 5. In this case, the support pole X and the lightning suppression device main body 4 are installed in a predetermined location. In this case, the guy wire W is fixed to the ground surface G or the like by driving a fastener (anchor bolt, stake, etc.) into the ground surface G or the like.

[0041] As shown in Figures 5(a) and 5(b), in the support column X, an internal coating layer 23 may also be provided inside the column body 1. The internal coating layer 23 is a laminated portion formed of the same or similar material as the main coating layer 21 and the sub-coating layer 22, and covers the inner wall surface of the column body 1. With this configuration, the support column X becomes thicker and stronger, and also the column body 1 can be protected even if water or the like gets inside the support column X.

[0042] As shown in Figures 6(a) and 6(b), the holding device Z capable of holding the support columns X in a straight line includes a frame 6 and a support body 7. When connecting multiple support columns X, it is necessary to hold the entire support columns X so that they do not bend until the secondary coating layer 22 hardens, and the holding device Z maintains the shape of the support columns X during this process.

[0043] The frame 6 is a structure that forms the holding device Z and ensures a space for accommodating the support column X therein, and has through columns 61 and connecting columns 62. Furthermore, although the frame 6 in this embodiment is configured based on a triangular column, other shapes may be adopted as long as they can stably hold the support column X in a straight line.

[0044] The through columns 61 are columnar members arranged in parallel to and surrounding the central axis B of the support column X. They function as support legs that allow the holding device Z to be placed on the work site, and also maintain the shape of the holding device Z. In this embodiment, three through columns 61 are provided, two of which serve as support legs. In this case, the cross-sectional shape of the through columns 61 is preferably a shape with a curved underside, such as a circle, ellipse, or sector. This configuration limits the contact area between the through columns 61 and the placement surface, making them less susceptible to the effects of surface roughness on both surfaces, allowing for more stable use of the holding device Z.

[0045] The cross pillars 62 are columnar members arranged to surround the central axis B and to bridge between the two through pillars 61. In this embodiment, the cross pillars 62 bridge between the three through pillars 61 that are arranged surrounding the central axis B, and as shown in FIG. 6(b), form a shape based on a triangle when viewed from the direction of the central axis B. The cross pillars 62 also support the support body 7, particularly the fixed plate 71 (described later).

[0046] The support 7 is a plate-like member connected to the frame 6 and capable of abutting against and supporting the support column X, and includes a fixed plate 71 and a movable plate 72. As shown in FIG. 6(b), the support 7 can contact the support column X at at least three locations surrounding the central axis B in a cross section of the support column X at a predetermined position, thereby holding the support column X inside the frame 6. In this case, the predetermined position of the support column X refers to any position in the direction of the central axis B within a range in which the secondary coating layer 22 is not formed, and the support 7 is provided at multiple positions that satisfy this range. Furthermore, since the support 7 applies force to the support column X in a direction that crushes the cylindrical hollow portion, it is preferable that a penetration reinforcement member 32 be provided in advance on the support column X at a position expected to come into contact with the support 7.

[0047] The fixing plates 71 are flat plate-like members fixedly connected to the connecting posts 62, and two of them are provided in a V-shape or an inverted V-shape when viewed from the direction of the central axis B. This configuration makes it possible to hold the support posts X with minimal contact. Furthermore, it is preferable that the two (pair of) fixing plates 71 provided at the same position in the direction of the central axis B have the same shape and elevation angle; in other words, they are provided line-symmetrically about the center of the frame 6 in the left-right direction when viewed from the direction of the central axis B. This configuration makes it easy for the user to visually grasp the position of the central axis B, and makes it easier to arrange the support posts X in a straight line.

[0048] The movable plate 72 is a flat movable member connected to the through column 61 and arranged so that its distance from the central axis B can be changed. The movable plate 72 is sized and shaped so as not to interfere with the fixed plate 71, and together with the fixed plate 71, it can abut and hold the support column X at least three points surrounding the central axis B in the cross section of a predetermined position of the support column X. Furthermore, the movable plate 72 is provided with a movable part 721 that can change the distance from the central axis B, and an operating part 722 that can operate the movable part 721, and is movably connected to the through column 61 via these parts.

[0049] As shown in Figures 6(a) and 6(b), the movable part 721 is a columnar member that is erected on the surface of the movable plate 72 and passes through the upper through-column 61, intersecting it approximately perpendicularly. The movable part 721 also allows the movable plate 72 to move toward and / or away from the central axis B by sliding or turning a screw. With this configuration, the movable plate 72 can be operated with a small number of parts and a simple configuration.

[0050] The operating unit 722 is a member provided near the end of the movable unit 721 opposite to the movable plate 72, and although it is a columnar member in the drawings, the shape is not particularly limited as long as it is easy to handle by gripping with a human hand, etc. As an example, in the form shown in Figures 6(a) and 6(b), the operating unit 722 is a handle of a columnar member that intersects approximately perpendicularly with the axial direction of the movable unit 721, and this allows the user to easily grip it and operate the movable unit 721.

[0051] The holding device Z is configured as a single unit, consisting of the aforementioned cross column 62 and support body 7, and is installed at multiple predetermined locations as shown in Figure 6(a), allowing the support column X to be supported in a straight line. In particular, it is preferable to install units consisting of the cross column 62 and support body 7 in four or more locations, with at least two units installed per short support column X before connection. With this configuration, each part of the support column X can be stably held before the secondary coating layer 22 hardens, allowing the support column X to be assembled in a straight line more reliably.

[0052] Because the support column X and the holding device Z are long structures, it is preferable to introduce a workbench 8 for the purpose of leveling and securing a work space during work. In this case, as shown in Figures 7(a) and 7(b), the workbench 8 is a foldable table equipped with a main top plate 81, a movable top plate 82, and movable legs 83, and the support column X and the holding device Z can be placed on the main top plate 81 and the movable top plate 82.

[0053] The main top plate 81 is a flat member that constitutes the main part of the workbench 8, and is connected to a movable top plate 82 and movable legs 83. In the folded state shown in FIG. 7(a), it is preferable that the movable top plate 82 and the movable legs 83 are configured to fold along the main top plate 81, and it is further preferable that the main top plate 81 be configured in the shape of a receiving box that can store the movable legs 83. With this configuration, in addition to being able to place the support column X, the holding device Z, etc., the folded workbench 8 can be made into a shape that is easy to carry.

[0054] The movable top 82 is a member that can expand the support surface of the main top 81, and has a movable top body 821 and a top joint 822. The movable top body 821 is a flat member that is connected to the main top 81 via the top joint 822, which is an axial joint (hinge joint), and in the unfolded state shown in Fig. 7(b), the support surface is flush with the main top 81. With this configuration, the support surface of the main top 81 can be expanded.

[0055] The top joints 822 are axial joints (hinge joints) having an axial direction on a pair of opposing sides of the support surface of the main top 81, and rotatably connect the movable top main body 821 to the main top 81. The top joints 822 are provided only near both ends of the sides of the main top 81. With this configuration, the boundary between the main top 81 and the movable top main body 821 can be opened, making it possible to make both support surfaces flush.

[0056] The movable leg 83 is a columnar member provided on the opposite side of the support surface of the main tabletop 81, and includes a movable leg body 831, a leg joint 832, and an adjustment unit 833. The movable leg body 831 and the leg joint 832 are foldable support legs that can be deployed and / or retracted from a parallel orientation to a perpendicular orientation to the main tabletop 81 using a pivot joint. The adjustment unit 833 includes an extension / contraction unit that can extend and contract the movable leg body 831 in the lengthwise direction and an operating mechanism that can operate the extension / contraction unit, making it possible to adjust the overall length of the movable leg 83. With this configuration, even if the place where the workbench 8 is installed is not level, the length of the movable leg 83 can be adjusted to make the support surface of the main tabletop 81 and the movable tabletop main body 821 level.

[0057] An embodiment of the present invention having the above configuration will be described below. However, the following configuration is merely an example, and various numerical values ​​etc. can be changed as desired within a range that does not pose a safety problem.

[0058] <Example> The support column X shown in Figures 1(a) and 1(b) has a column body 1 with an axial length of 1 m, an outer diameter of 80 mm, and an inner diameter of 76 mm. The axial length of the long support column X shown in Figure 3(a) is 14 m to 16 m, and the horizontal size of the frame body 51 of the base part 5 is 6 m x 4 m. The length of the central axis B of the holding device Z shown in Figures 6(a) and 7(c) is determined in the range of 2 m to 6 m depending on the length of the support column X to be handled, and the maximum length (either diagonal or long side) of the main top plate 81 and the movable top plate body 821 combined in the unfolded state of the workbench 8 shown in Figures 7(b) and 7(c) is preferably 5 m to 8 m.

[0059] Hereinafter, a method for manufacturing the support column X according to the present invention will be described with reference to the drawings. Note that the manufacturing method described below is an example, and the manufacturing method is not limited to this, and the order of the steps may be reversed.

[0060] ≪Manufacturing method≫ When manufacturing the support column X according to the present invention, the manufacturer first prepares a cylindrical member that will become the column body 1 and a material that will form the covering layer 2. At this time, each element is made of a non-conductive material, and in particular, the material that forms the covering layer 2 is waterproof. Furthermore, the material that forms the covering layer 2 is in a liquid or paste form, and multiple types of material may be used.

[0061] <Coating process> As shown in Figures 1(a), 1(b), and 1(c), the manufacturer applies various materials to the surface of the column body 1 to form the coating layer 2 (particularly the main coating layer 21). At this time, a method of spraying a liquid or paste-like material using an application device S or the like and waiting for it to harden is preferable. In addition, when forming the coating layer 2, if the applied material is a two-liquid mixed organic compound (resin, etc.), it hardens through a chemical reaction to form the coating layer 2 (hardening process). In addition, this coating process may also include a work of applying a material to the inner wall surface of the column body 1 in the same way to form an internal coating layer 23, as shown in Figures 5(a) and 5(b).

[0062] <Connection process> Next, the manufacturer connects multiple support columns X on which the primary coating layer 21 has been formed, as shown in Figures 2(a), 2(b), and 2(c). In this process, first, at the butt joint J that connects two support columns X (particularly the column body 1) axially, a penetrating reinforcement member 32 is inserted into the interior of the column body 1, and a flexible reinforcement member 31 is wrapped around the outer surface of the column body 1 (reinforcement process). After attaching each reinforcement member 3 in this manner, the manufacturer applies the material for the secondary coating layer 22 to the butt joint J, forming the secondary coating layer 22 and enclosing the flexible reinforcement member 31. To form the secondary coating layer 22, the manufacturer also sprays the material onto the outer surface of the butt joint J using an application device S or the like, and waits for it to harden. By repeating this process, multiple support columns X become a single long support column X.

[0063] Hereinafter, a method for carrying out the present invention will be described in detail with reference to the drawings. The ...

[0064] <<Implementation Method>> In the above-mentioned connection process, in order to prevent the support column X from bending at the butt joint J or the entire support column X from bending while waiting for the secondary coating layer 22 to harden, the manufacturer holds the support column X in a straight line using a holding device Z as shown in Figures 6(a) and 6(b) and performs each operation of the connection process.

[0065] The user (or manufacturer; the same applies below) first installs the holding device Z on a level work surface. This work surface may be a substantially level surface or, as shown in FIG. 7(c), the top surface (mounting surface) of a workbench 8. Next, the manufacturer passes two (or, depending on the configuration, three or more) support columns X in series and in the same line through the internal space formed by the frame 6 of the holding device Z and holds them in place with the supports 7. At this time, each support column X is installed in a position where it is supported by the supports 7 at at least two points in the direction of the central axis B, and the butt joints J are installed in a position where they do not interfere with the supports 7. In this held state, the manufacturer applies material to the butt joints J as described above, waits for it to harden, and then forms the secondary coating layer 22.

[0066] The long support pole X assembled in the above manner is incorporated into the lightning suppression device Y, as shown in Figure 3(a). The user first inserts a wire member L made of a conductive material into the support pole X. Next, the user electrically connects one end of the wire member L drawn out from one end of the support pole X to the inner electrode 41 of the lightning suppression device main body 4, and further connects the lightning suppression device main body 4 to one end of the support pole X via a connecting member C.

[0067] Next, the user attaches the other end to the support pole mounting portion 52 of the foundation portion 5. At this time, the foundation portion 5 is placed at the location where the lightning suppression device Y will be installed. At this time, the user electrically connects the linear member L to the foundation portion 5, and then inserts the support pole X into the insertion portion 521. At this time, the axial direction of the insertion portion 521 lies approximately parallel to the ground surface G, and then the user raises the support pole X until it reaches the state shown in Figure 3(a). The support pole X can be raised by towing or hanging with heavy machinery or a hoist, or if the support pole X is lightweight, it can be raised by hand. After that, the user strings the guy wires W as necessary.

[0068] A support column X according to a second embodiment of the present invention will be described in detail below with reference to the drawings. The same components as those in the first embodiment will be designated by the same reference numerals and will not be described again. Furthermore, what is shown below is an example of the present invention, and the present invention is not limited to the following embodiment.

[0069] Second Embodiment FIG. 8(a) is a perspective view showing the configuration of the support pillar X according to this embodiment, FIG. 8(b) is an enlarged view of the vicinity of the end of the support pillar X shown in FIG. 8(a), and FIG. 8(c) is a perspective view showing the support pillar X assembled so that it can support the lightning suppression device main body 4.

[0070] As shown in Figures 8(a) and 8(b), the support column X comprises a column body 1 and a coating layer 2, and the coating layer 2 has an inner coating layer 23 between the main coating layer 21 and the column body 1. In this configuration, the column body 1 only needs to be strong enough to maintain its cylindrical shape, and an example of such a material is a thin-walled metal tube. The main coating layer 21 and the inner coating layer 23 are made of different materials. For example, the main coating layer 21 may be made of polyurethane resin, and the inner coating layer 23 may be made of vinyl chloride resin. This configuration makes it possible to achieve a lightweight, high-strength, and even higher waterproof performance.

[0071] As shown in FIG. 8(c), multiple support columns X according to this embodiment are installed in parallel and support the lightning suppression device main body 4 via connecting members C. The connecting members C are preferably flat, capable of supporting the arrangement of multiple support columns X and connecting the lightning suppression device main body 4 at the center of gravity. A grounding wire is connected to or inserted through the connecting members C to ground the lightning suppression device main body 4. This configuration allows the support columns X to support a sufficient weight by distributing the load, even if they are lightweight. Additionally, to improve the stability of the support columns X, beams may be provided to span the support columns X. Various configurations and methods may be used to connect the components. For example, connection using a connecting pipe P (such as a known pole joint), bolt fastening, adhesive bonding, or bonding by adding (curing) a coating layer 2 may be used.

[0072] The connecting pipes P are tubular structures used to connect the support columns X in series or to bridge beams between the support columns X, and are provided by combining pipes in one or more directions depending on the application. In an example configuration of the support columns X combined with the connecting pipes P in this embodiment, multiple connecting pipes P are provided in the axial middle portion of the support columns X, as shown in FIG. 8(c). In this case, the connecting pipes P are configured by combining three pipes that are perpendicular to each other, and a beam is attached between two adjacent support columns X. This makes it possible to suppress bending deformation of the erected support columns X in the cross-sectional direction and improve the strength of the structure. [Explanation of symbols]

[0073] X support column Y Lightning Suppression Device Z holding device 1 Pillar body 2 Covering layer 21 Main coating layer 22 Sub-coating layer 23 Inner coating layer 3 Reinforcement members 31 Flexible reinforcing member 32 Penetrating reinforcement member 321 Through hole 4. Lightning suppression device body 41 Inner electrode 42 Outer electrode 421 First outer electrode 422 Second outer electrode 43 Connecting pillar 44 Spacer 5 Foundation part 51 Frame 52 Support column mounting part 521 Insertion part 522 Movable bottom plate 523 Vertical joint 53 Protrusion 6 frames 61 Through pillar 62 Crossing Pillar 7 Support 71 Fixed plate 72 Movable plate 721 Moving parts 722 Operation section 8 Workbench 81 Main top plate 82 Movable top plate 821 Movable top plate body 822 Tabletop joint 83 Movable legs 831 Movable script body 832 Leg joints 833 Adjustment part B Center axis C Connection member C1 flange C2 Reinforced pipe G ground plane J Butt part L Linear member P Connecting pipe S Coating Equipment W branch line

Claims

1. A hollow support column through which a linear member can be inserted, A pillar body made of a non-conductive material and a coating layer covering the surface of the pillar body, the coating layer is a waterproof resin, A support column, in which a reinforcing member is provided at a butt portion where the plurality of column bodies are connected in the axial direction.

2. The reinforcing member is a flexible reinforcing member that can be attached to the pillar body, the flexible reinforcing member is wrapped around the butted portion and further enclosed in the covering layer; The support column of claim 1 .

3. The reinforcing member is a penetrating reinforcing member that can penetrate into the interior of the pillar main body, The penetration reinforcing member has a through hole in the penetration direction and penetrates into the inside of the butt portion. The support column of claim 1 .

4. The resin contains a plurality of organic compounds that harden at room temperature through a chemical reaction. The support column of claim 1 .

5. The resin includes at least one of the group consisting of an isocyanate, a polyamine, and a polyol. The support column of claim 1 .

6. A lightning suppression device comprising: the support pole according to claim 1; a lightning suppression device body supported by the support pole; and a base portion on which the support pole can be erected; The lightning suppression device, wherein the linear member is made of a conductive material and is inserted into the inside of the support pole to enable the lightning suppression device main body to be grounded.

7. A holding device capable of holding the support column according to any one of claims 1 to 6 in a straight line, A support is provided which can contact at least three points surrounding the central axis in a cross section at a predetermined position in the axial direction of the support column, A holding device, wherein at least one of the supports has a movable member that can change the distance of the support post from the central axis.

8. A method for manufacturing a hollow support pillar through which a linear member can be inserted, comprising: a coating step of forming a waterproof coating layer on the surface of the non-conductive pillar body; a connecting step of connecting a plurality of the column bodies in the axial direction, The formation of the coating layer includes a curing step in which the resin is cured by a chemical reaction, The manufacturing method, wherein the connecting step includes a reinforcing step of attaching a reinforcing member to the butt joints connecting the plurality of column bodies.

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