Utility pole with scaffold bolt and scaffold bolt used on utility pole

Abstract

To provide a utility pole with a scaffold bolt and the scaffold bolt used on the utility pole to remind people not to forget to replace fall prevention equipment.SOLUTION: The utility pole includes a utility pole body and multiple scaffold bolts 3 arranged at predetermined intervals in the height direction of the utility pole body. The scaffold bolt 3 has a connection part 31 connected to the utility pole body side, a bolt main part that extends from the connection part 31 to the outside of the utility pole body and is gripped or used as a foothold by a worker, a neck 33 that extends from the bolt main part to the outside of the utility pole body, and a head 34 that is arranged on the outside of the neck 33 and is formed with a larger diameter than the neck 33. On the scaffold bolt of the same height as a predetermined height or in the vicinity of that height, at least a portion from the neck 33 to the head 34 is provided with a height indicator 5 for indicating the height from the ground.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a utility pole with a scaffold bolt and a scaffold bolt for use on a utility pole. [Background technology]

[0002] When workers work on utility poles, they use fall protection devices (lanyards) to prevent them from falling from the poles.

[0003] However, fall prevention devices are handled differently by workers when they are below a certain height from the ground and when they are above that height. Specifically, the handling of fall prevention devices differs depending on the height, with 5 m above the ground as the standard. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2022-40944 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, when a worker climbs a utility pole or concentrates on his or her work, the worker may mishandle the fall protection equipment in relation to its height from the ground.

[0006] Therefore, an object of the present invention is to provide a utility pole with a scaffold bolt and a scaffold bolt for use on a utility pole that prevents mishandling of fall prevention equipment. [Means for solving the problem]

[0007] The present invention is a utility pole with scaffolding bolts, comprising a utility pole body and a plurality of scaffolding bolts arranged at predetermined intervals in the height direction of the utility pole body, each of the scaffolding bolts comprising a connecting part connected to the utility pole body, a bolt main part extending from the connecting part to the outside of the utility pole body and being gripped or placed by a worker, a neck part extending from the bolt main part to the outside of the utility pole body, and a head part arranged on the outside of the neck part and having a larger diameter than the neck part, and wherein a height indicating part indicating the height from the ground is provided on at least a part of the portion from the neck part to the head part of the scaffolding bolts at or near a predetermined height.

[0008] In the utility pole with scaffolding bolts of the above configuration, a height indicator showing the height from the ground is provided from the neck to the head of the scaffolding bolt at a height equal to or near a specified height, or on at least a part of the neck to head, so that a worker climbing the utility pole can visually recognize the height indicator and thus recognize the height from the ground.

[0009] In the utility pole with scaffolding bolts of the present invention, the height indicator at the specified height is set to a height that changes the handling of fall prevention equipment that prevents a worker who falls from the utility pole body from crashing into the ground.

[0010] According to the above-described configuration of the utility pole with scaffolding bolt, the height indication unit is set to the height indication unit of the scaffolding bolt at a predetermined height, so that the worker can visually recognize the height indication unit and change the handling of the fall prevention equipment, thereby ensuring the safety of the worker.

[0011] In the electric pole with scaffolding bolts of the present invention, the head can have an inner surface that protrudes radially outward from the outer end of the neck, and the height indicating portion can have an inner surface portion that covers the inner surface of the head.

[0012] According to the utility pole with scaffolding bolts having the above-mentioned configuration, the height indication portion has an inner surface portion that covers the inner surface of the head portion, so that the inner surface portion is easily within the range that can be visually recognized by a worker.

[0013] In the scaffolding bolt-equipped utility pole of the present invention, the height indication portion may be configured to include a neck circumference portion that covers the periphery of the neck portion.

[0014] According to the above-described configuration of the utility pole with scaffolding bolts, the height indication portion is provided with a neck circumference portion that covers the periphery of the neck portion, so that the surrounding portion is easily within the range that can be visually recognized by the worker.

[0015] The present invention is a scaffolding bolt for use on an electric pole, comprising a connecting part connected to the electric pole, a bolt main part extending from the connecting part to the outside of the electric pole and being gripped or placed by a worker, a neck part extending from the bolt main part to the outside of the electric pole, and a head part which is arranged on the outside of the neck part and has a larger diameter than the neck part, and the scaffolding bolt for use on an electric pole has a height indicating part indicating the height from the ground provided on at least a part of the part from the neck part to the head part at or near a predetermined height.

[0016] According to the scaffolding bolt used on the utility pole of the above configuration, a height indicator showing the height from the ground is provided on at least a part of the neck to the head at a position equal to or near a specified height, so that a worker can recognize the height from the ground by visually recognizing the height indicator. Effect of the Invention

[0017] According to the utility pole with scaffolding bolts and the scaffolding bolts used on the utility poles of the present invention, a height indication portion is provided, so that a worker climbing the utility pole can visually recognize the height indication portion and recognize the height from the ground. [Brief description of the drawings]

[0018] [Figure 1] FIG. 1 is an explanatory diagram showing the erected state of a utility pole. [Diagram 2] FIG. 2 is a front view showing the overall configuration of the scaffolding bolt and the height display unit of the first embodiment. [Diagram 3] FIG. 3 is a perspective view of the inner surface of a height indicator attached to the head of a scaffolding bolt. [Figure 4] FIG. 4 is a side view from the inner surface side of a height indicator attached to the head of a scaffold bolt. [Diagram 5] FIG. 5 is a front cross-sectional view of a height indicator attached to the head of a scaffold bolt. [Figure 6] FIG. 6 is a perspective view from the inner surface side of a height display unit of the second embodiment attached to the neck of a foothold bolt. [Figure 7] FIG. 7 is a side view from the inside of a height indicator attached to the neck of a scaffold bolt. [Figure 8] FIG. 8 is a cross-sectional view of a height indicator attached to the neck of a scaffold bolt. [Figure 9] FIG. 9 is a side view from the inner surface of a height indicator part showing another example of the second embodiment, which is attached to the neck part of a foothold bolt. [Figure 10] 10(a) to 10(h) are front views showing specific examples of height indicating parts in which the neck to the head of a foothold bolt is colored. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] A utility pole (power pole) according to one embodiment of the present invention will be described with reference to Figures 1 to 10. As shown in Figure 1, utility pole 1 is a utility pole with scaffolding bolts, and comprises a utility pole body 2 whose lower part is buried in a predetermined place, and scaffolding bolts 3 (also called scaffolding nails or scaffolding members) attached at predetermined intervals in the height direction. The utility pole body 2 is a support for overhead lines 4, and is of a general structure.

[0020] The scaffolding bolt 3 is a standardized one of general structure, and as shown in Figure 2, it has a connecting part 31 connected to the pole main body 2, an anti-slip part 32 extending from the connecting part 31 to the outside of the pole main body 2, a neck part 33 extending from the anti-slip part 32 to the outside of the pole main body 2, and a head part 34 protruding from the outside of the neck part 33.

[0021] In this embodiment, the connecting portion 31, the non-slip portion 32, and the neck portion 33 are formed in a cylindrical shape, and the head portion 34 is a hexagonal bolt head. The connecting portion 31 is configured to be embedded in the utility pole body 2, and a male thread 31a is cut on the outer circumferential surface, which is screwed into an internal thread formed on the utility pole body 2. The non-slip portion 32 has a non-slip portion 32a formed on the main portion of the bolt, which is an area where an operator holds it or places his / her foot on it. The configuration of the non-slip portion 32a is not particularly limited, and a general configuration is used, in which case, a recess and a protrusion (reference numerals omitted) are formed on the outer circumferential surface of the non-slip portion 32. The neck portion 33 is a circular portion between the non-slip portion 32 and the head portion 34, and has nothing applied to its surface, and has a neck portion 33a formed in a circular shape. The diameter of the non-slip portion 32a of the non-slip portion 32 is formed slightly larger than the diameter of the neck portion 33a of the neck portion 33. Head 34 has an inner surface 34a that protrudes radially outward from the outer end of neck 33, a hexagonal outer circumferential surface 34b, and an outer surface 34c that faces inner surface 34a on the outside.

[0022] Although the head 34 is hexagonal, it may be polygonal prism along the axis 3a of the scaffolding bolt 3. In this case, the inner surface 34a and the outer surface 34c are polygonal prism surfaces, and the outer peripheral surface 34b is flat with the same number of corners as the polygonal prism.

[0023] As shown in Figure 1, multiple such scaffolding bolts 3 are attached to the utility pole main body 2 at predetermined intervals, for example, more than 1.8 m above the ground and attached to the utility pole main body 2 at 45 cm intervals in the vertical direction by connecting parts 31 (male threads 31a).

[0024] Of these scaffold bolts 3, a height indicator 5 indicating the height from the ground is provided from the neck 33 to the head 34 at a position equal to or near a predetermined height. In other words, the predetermined height is set to a height at which the handling of a fall prevention device (lanyard) that prevents a worker who has fallen from the utility pole body 2 from crashing into the ground is changed, and the height indicator 5 is provided for the scaffold bolts 3 at such a predetermined height.

[0025] In this case, multiple scaffold bolts 3 are attached to the utility pole body 2 at 45 cm intervals above 1.8 m above the ground, and if 5 m above the ground is used as the reference point for changing the handling of fall prevention equipment, a height display unit 5 is provided on the seventh scaffold bolt 3, as shown in Figure 1. Alternatively, using the seventh bolt as the reference point, height display units 5 are provided on the scaffold bolts 3 above and below it.

[0026] The height indication unit 5 will be described below as a common concept between the configuration of the utility pole 1 in the utility pole with a scaffolding bolt and the configuration of the scaffolding bolt 3 having a connecting portion 31, an anti-slip portion 32, a neck portion 33, and a head portion 34 that conform to standards.

[0027] A height display unit 3 of a first embodiment attached to a utility pole with a scaffold bolt, i.e., a scaffold bolt 3, will be described with reference to Fig. 2 to Fig. 5. The height display unit 5 in the first embodiment is a separate member from the scaffold bolt 3 and is configured to cover the head 34 of the scaffold bolt 3. Specifically, as shown in Figs. 3 to 5, the height display unit 5 has a hexahedral surface covering unit 6 that covers the outer peripheral surface 34b of the head 34 (covers the entire circumferential circumference of the outer peripheral surface 34b), and an inner surface covering unit 7 (corresponding to the inner surface) that is formed integrally with the surface covering unit 6 and covers the inner surface 34a of the head 34.

[0028] The surface covering portion 6 is integrally formed along the outer peripheral surface 34b of the head 34. The length of the surface covering portion 6 along the axis 3a of the scaffolding bolt 3 is formed to be slightly longer than the length of the outer peripheral surface 34b.

[0029] The surface covering portion 6 and the inner covering portion 7 are freely bendable via a hexagonal fold line portion 8. In other words, the surface covering portion 6 and the inner covering portion 7 can be relatively folded via the fold line portion 8, and the surface covering portion 6 and the inner covering portion 7 are folded via the fold line portion 8 by an external force (e.g., human force). The inner covering portion 7 is formed all around the circumference in correspondence with the surface covering portion 6, and specifically, is formed at six locations corresponding to the six faces of the surface covering portion 6.

[0030] The length of the inner covering portion 7 along the axis 3a of the scaffolding bolt 3 is formed to be a length that substantially matches the neck circumference 33a of the neck portion 33 when folded via the fold line portion 8. Each inner covering portion 7 is configured so as not to overlap with an adjacent inner covering portion 7 when covering the inner surface 34a of the head portion 34. In this case, each inner covering portion 7 is formed in a semicircular shape including the fold line portion 8 so as not to overlap with an adjacent inner covering portion 7. Note that the width of the inner covering portion 7 is narrower at least at the tip end, with the fold line portion 8 as the base end, toward the tip.

[0031] In Figures 2 to 4, the head 34 is formed in a semicircular shape including the fold line portion 8, but it may also be formed in a polygonal shape. In this case, when the head 34 is hexagonal or polygonal prism-shaped, one head may be provided on each side of the inner surface 34a, or on all sides.

[0032] Furthermore, the color of the height display unit 5 or the surface colors of the surface covering unit 6 and the inner surface covering unit 7 are bright colors such as "red" and "yellow" that are easy to visually recognize. Alternatively, in consideration of late-night work, a reflector may be applied to the surface of the surface covering unit 6 and the inner surface covering unit 7 as the height display unit 5. Alternatively, a phosphorescent plate may be used as the height display unit 5.

[0033] When installing such a height indication unit 5 on a scaffold bolt 3 at the specified height, it is possible to do so after the scaffold bolt 3 is attached to the pole body 2, or before the scaffold bolt 3 is attached to the pole body 2, but the installation method for both is similar.

[0034] That is, as shown in Fig. 2, the inner surface covering portion 7 of the height indicating portion 5 is made flush with the surface covering portion 6 without being folded at the folding line portion 8, the height indicating portion 5 is moved from the outside of the head portion 34 toward the connecting portion 31, and the surface covering portion 6 is placed over the head portion 34 so as to fit along the outer peripheral surface 34b of the head portion 34, and then, as shown in Figs. 3 to 5, the inner surface covering portion 7 is folded toward the inner surface 34a using the folding line portion 8. At this time, since the surface covering portion 6 is integrally formed so as to fit along the outer peripheral surface 34b of the head portion 34, the outer surface 6a of the surface covering portion 6 and the outer surface 34c of the head portion 34 are substantially flush with each other.

[0035] In this way, when the height display unit 5 is installed on the scaffold bolt 3 at the predetermined height, the height display unit 5 can be visually recognized by the worker. In other words, the height from the ground can be recognized and the handling of the fall prevention device can be changed, thereby ensuring the safety of the worker. In addition, since the height display unit 5 includes the inner surface covering portion 7 that covers the inner surface 34a of the head portion 34, the inner surface covering portion 7 can easily be placed within the range that can be visually recognized by the worker. Furthermore, since the height display unit 5 uses a color that is easy to visually recognize, visual recognition becomes even easier.

[0036] Incidentally, the mounting of the scaffold bolt 3 of the height indicating part 5 can be performed either after the scaffold bolt 3 is mounted on the utility pole main body 2 or before the scaffold bolt 3 is mounted on the utility pole main body 2, but the mounting method is similar in both cases. However, when performing the mounting before the scaffold bolt 3 is mounted on the utility pole main body 2, it is also possible to use a method in which the inner surface covering part 7 of the height indicating part 5 is folded in advance at the folding line part 8, and then the surface covering part 6 is moved from the connecting part 31 side to the head part 34 side using the space surrounded by each inner surface covering part 7, and the surface covering part 6 is placed over the head part 34 so as to fit along the outer peripheral surface 34b of the head part 34.

[0037] A second embodiment of the height display unit 5 attached to the scaffold bolt-attached utility pole of the present invention, i.e., the scaffold bolt 3, will be described with reference to Figs. 6 to 9. The height display unit 5 of the second embodiment is a separate member from the scaffold bolt 3, as in the first embodiment, and is configured to cover the neck circumference 33a of the neck 33 of the scaffold bolt 3, as shown in Fig. 6. Specifically, the height display unit 5 in the second embodiment is configured from an annular body 10 having a gap 9 in the center that fits with the neck 33 so as to cover the entire neck 33.

[0038] As shown in Figs. 6 and 8, the length of the ring-shaped body 10 is set to the length of the substantially entire axis 3a of the scaffold bolt 3 at the neck circumference 33a, and as shown in Fig. 7, the ring-shaped body 10 is formed as two splits of the first ring-shaped body 10A and the second ring-shaped body 10B via the hinge portion 10a along the axis 3a of the scaffold bolt 3. In addition, a hook-and-loop fastener 10C is provided on the opposing surfaces of the first ring-shaped body 10A and the second ring-shaped body 10B, and the first ring-shaped body 10A and the second ring-shaped body 10B can be opened and closed via the hinge portion 10a, and the first ring-shaped body 10A and the second ring-shaped body 10B are closed by the hook-and-loop fastener 10C. That is, the ring-shaped body 10 is a ring-shaped body in which a plurality of the first ring-shaped bodies 10A and the second ring-shaped body 10B are connected together. The diameter D of the ring-shaped body 10 is set to be smaller than the head portion 34 of the scaffold bolt 3. In addition, the color of the height display portion 5 in the second embodiment is the same as that of the height display portion 5 in the first embodiment.

[0039] The height indication part 5 in the second embodiment of the scaffolding bolt-equipped utility pole covers the neck circumference 33a of the neck 33 of the scaffolding bolt 3, as shown in Figure 8, and is installed on the neck circumference 33a of the neck 33 by opening the first ring body 10A and the second ring body 10B via the hinge part 10a and fitting the neck circumference 33a into the gap 9, and then closing the first ring body 10A and the second ring body 10B using a hook-and-loop fastener 10C.

[0040] According to this height display unit 5, the height display unit 5 is attached so as to cover the periphery of the neck portion 33, so that the height display unit 5 is easily placed within the range that can be visually recognized by the worker. Also, as described above, the diameter of the anti-slip portion 32a of the anti-slip portion 32 is formed to be slightly larger than the diameter of the neck circumference portion 33a of the neck portion 33. Therefore, if the height display unit 5 is firmly fitted on the outside of the neck portion 33, for example, even if the worker's foot touches the outer periphery of the height display unit 5 and moves toward the anti-slip portion 32, the height display unit 5 is unlikely to move to the anti-slip portion 32.

[0041] FIG. 9 shows another example of the height display unit 5 in the electric pole with scaffolding bolts of the second embodiment. In the above embodiment, the first ring body 10A and the second ring body 10B are configured to close the hook-and-loop fastener 10C. However, in another example, instead of the hook-and-loop fastener 10C, the first ring body 10A and the second ring body 10B are formed at both ends with locking portions 13 and 14 that engage with each other via stepped surfaces 11 and 12 that overlap in the circumferential direction. In this configuration, the first ring body 10A and the second ring body 10B can be freely opened and closed via the hinge portion 10a, and the first ring body 10A and the second ring body 10B are closed by the locking portions 13 and 14. The other configurations are the same as those of the second embodiment.

[0042] The present invention is not limited to the first and second embodiments. For example, in the first embodiment, the height display unit 5 has a hexahedral surface covering portion 6 that covers the outer peripheral surface 34b of the head 34, and an inner surface covering portion 7 that covers the inner surface 34a of the head 34. However, it may be composed of the surface covering portion 6, the inner surface covering portion 7, and a portion that covers the outer surface 34c of the head 34 (not shown). Here, the head 34 of the scaffolding bolt 3 may have the inner surface covering portion 7 that covers at least a part or all of the inner surface 34a, or the surface covering portion 6 that covers a part or all of the outer peripheral surface 34b of the head 34.

[0043] In the second embodiment, the scaffold bolt 3 is formed as a split of the first annular body 10A and the second annular body 10B so as to cover the neck circumference 33a of the neck 33. However, the scaffold bolt 3 may be formed of only one of the first annular body 10A and the second annular body 10B. In this case, however, it is preferable to provide the anti-slip portion 32 with a means for preventing it from moving.

[0044] In the above first and second embodiments, the height indicator 5 is configured as a separate member from the scaffold bolt 3. However, it is also possible to form the height indicator 5, which indicates the height from the ground, from the neck 33 to the head 34 integrally with the scaffold bolt 3. In this case, for example, it is considered to color the area from the neck 33 to the head 34.

[0045] Here, the colored height display section 5 is shown in Fig. 10(a) to (h). In Fig. 10(a) to (h), the colored height display section 5 is the part shown with a thick line in Fig. 10. Fig. 10(a) is an example in which the entire circumference of the neck circumference 33a of the neck section 33 is colored. Fig. 10(b) is an example in which the entire inner surface 34a of the head section 34 is colored. Fig. 10(c) is an example in which the entire circumference of the neck circumference 33a of the neck section 33 and the entire inner surface 34a of the head section 34 are colored. Fig. 10(d) is an example in which the entire circumference of the neck circumference 33a of the neck section 33, the entire inner surface 34a of the head section 34, and the entire outer peripheral surface 34b of the head section 34 are colored. FIG. 10(e) is an example in which the entire circumference of the neck circumference 33a of the neck 33, the entire inner surface 34a of the head 34, the entire outer circumference of the outer surface 34b of the head 34, and part of the outer surface 34c of the head 34 are colored. FIG. 10(f) is an example in which the entire inner surface 34a of the head 34 and the entire outer circumference of the outer surface 34b of the head 34 are colored. FIG. 10(g) is an example in which the entire outer circumference of the outer surface 34b of the head 34 is colored. FIG. 10(h) is an example in which the entire inner surface 34a of the head 34, the entire outer circumference of the outer surface 34b of the head 34, and part of the outer surface 34c of the head 34 are colored. The colors of these colors are the same as those of the height indicator 5 of the first embodiment.

[0046] In addition, the colored height indicating portion 5 does not need to be applied to the entire neck circumference 33a of the neck portion 33, the inner surface 34a of the head portion 34, and the outer peripheral surface 34b of the head portion 34, but may be applied to only a part of the neck circumference 33a of the neck portion 33, a part of the inner surface 34a of the head portion 34, or a part of the outer peripheral surface 34b of the head portion 34.

[0047] In each of the above embodiments, the head 34 is hexagonal. However, although not shown, the head may be square or cylindrical (such as the head of a hexagon socket bolt). In this case, the surface covering portion in the first embodiment is configured to cover the square outer peripheral surface or cylindrical outer peripheral surface of the head, and each inner surface covering portion is formed at four locations or at predetermined locations via folding line portions corresponding to the surface covering portion. [Explanation of symbols]

[0048] 1... Utility pole, 2... Utility pole body, 3... Scaffolding bolt, 4... Overhead line, 5... Display section, 6... Surface covering section, 6a... Outer surface, 7... Inner covering section, 8... Broken line section, 31... Connection section, 32... Anti-slip section, 33... Neck section, 33a... Neck circumference section, 34... Head, 34a... Inner surface, 34b... Outer circumferential surface, 34c... External surface

Claims

1. A utility pole body and a plurality of scaffold bolts arranged at predetermined intervals in the height direction of the utility pole body, The scaffolding bolt includes a connecting portion connected to the utility pole main body side, a bolt main portion extending from the connecting portion to the outside of the utility pole main body and being gripped or put under the foot by a worker, a neck portion extending from the bolt main portion to the outside of the utility pole main body, and a head portion disposed on the outside of the neck portion and formed with a larger diameter than the neck portion, A utility pole with a scaffolding bolt, in which a height indicating portion showing the height from the ground is provided on at least a portion of the neck portion to the head portion of the scaffolding bolt that is equal to or near a predetermined height.

2. The electric pole with scaffolding bolts as described in claim 1, wherein the height display unit at the specified height is set to a height at which the handling of a fall prevention device that prevents a worker who falls from the electric pole body from crashing into the ground is changed.

3. The head portion has an inner surface provided so as to protrude radially outward from an outer end of the neck portion, The scaffolding bolt-attached utility pole according to claim 1 or 2, wherein the height indication portion includes an inner surface portion covering the inner surface of the head portion.

4. The scaffolding bolt-attached utility pole according to claim 1 or 2, wherein the height indication portion includes a neck portion that covers the periphery of the neck portion.

5. A scaffolding bolt for use on utility poles, The bolt comprises a connecting part connected to the utility pole, a bolt main part extending from the connecting part to the outside of the utility pole and on which an operator can grip or place his / her foot, a neck part extending from the bolt main part to the outside of the utility pole, and a head part disposed on the outside of the neck part and formed with a larger diameter than the neck part, A scaffolding bolt used on a utility pole having a height indication portion indicating the height from the ground provided on at least a part of the neck portion to the head portion at or near a predetermined height.

Images