Pole equipment mounting bracket and pole equipment mounting method

Abstract

To prevent a swollen snow cap from forming on an arm for fitting a column-top device.SOLUTION: A fitting has a column-top device fitting member 11 and a clamping member 12. The column-top device fitting member 11 has a longitudinal portion 11a having a predetermined length in a longitudinal direction and a transverse portion 11b having a predetermined length in a transverse direction from an upper end of the longitudinal portion 11a. The longitudinal portion 11a is provided with a bolt hole for fastening with a bolt 13a and a nut 13b for fitting an arm. The horizontal portion 11b is provided with a bolt hole for fastening a column-top device 4 with a bolt 14a and a nut 14b for fitting the column-top device. The clamping member 12 is constructed separately from the column-top device fitting member 11 and is provided with a bolt hole through which the bolt 13a for fitting the arm passes, and sandwiches a column fitting arm 3 between the column-top device fitting member 11 fastened by the arm fitting bolt 13a and the nut 13b and the clamping member 12.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a pole-mounted device mounting bracket for mounting pole-mounted devices such as high-voltage cutouts and insulators to a pole mounting bracket attached to a pole, and a pole-mounted device mounting method. [Background technology]

[0002] Conventionally, when mounting pole-mounted equipment such as high-voltage cutouts and insulators to a pole mounting bracket attached to a pole, for example, in the pole-mounted equipment mounting bracket and pole-mounted equipment mounting method described in Patent Document 1, as disclosed in FIG. 1 thereof, bracket 212 (hereinafter referred to as an "orthogonal cross bracket") is attached perpendicular to bracket 203 (hereinafter referred to as the "pole mounting bracket"), and pole-mounted equipment such as dead-end insulator 213 and cutout switch 214 (hereinafter referred to as a "high-voltage cutout") are mounted to the orthogonal cross bracket. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2016-085940 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the pole-mounted equipment mounting bracket and pole-mounted equipment mounting method described in the above-mentioned Patent Document 1, an orthogonal cross arm is attached to a pole mounting arm extending from a pole, and pole-mounted equipment such as a dead-end insulator or a high-voltage cutout is attached to the orthogonal cross arm. Therefore, when it snows, snow is likely to form at the intersection of the pole mounting arm and the orthogonal cross arm, and in particular in areas with heavy snowfall, the snow at the intersection of the arms becomes large.

[0005] When the snow buildup at the intersections between the cross brackets becomes too large, problems can occur such as the weight of the snow, wind, vibrations, and even the weight of the snow itself causing the pole mounting brackets and orthogonal cross brackets to deform or bend, causing the snow to fall off, or the pole-mounted equipment attached to the orthogonal cross brackets to fall off or become damaged. In order to prevent such problems, regular snow removal is required, which is a very heavy workload.

[0006] In particular, the intersection of the pole mounting bracket and the orthogonal cross bracket is prone to snow accumulation, and since pole-mounted equipment is attached to the orthogonal cross bracket, in heavy snowfall areas with a significant amount of snowfall overnight, the snow accumulation at the intersection of the pole mounting bracket and the orthogonal cross bracket and the snow accumulation around the pole-mounted equipment merge together, causing the snow accumulation to increase even further, creating a major problem.

[0007] Therefore, the present invention has been made with attention to the above problems, and aims to provide a pole-mounted equipment mounting bracket and a pole-mounted equipment mounting method that can prevent the occurrence of thickened snow caps on the cross brackets that mount pole-mounted equipment such as high-voltage cutouts and insulators. [Means for solving the problem]

[0008] In order to solve the above problems, the pole-mounted equipment mounting bracket of the present invention is a pole-mounted equipment mounting bracket for mounting pole-mounted equipment to a pole mounting bracket attached to a pole, the pole-mounted equipment mounting bracket having a vertical portion having a predetermined length in the vertical direction and a horizontal portion having a predetermined length in the horizontal direction from the upper end of the vertical portion, the vertical portion being provided with a bracket mounting bolt hole for passing a bracket mounting bolt through it and fastening it with a nut, while the horizontal portion being provided with a pole-mounted equipment mounting bolt hole for passing a pole-mounted equipment mounting bolt through it and fastening it with a nut to mount the pole-mounted equipment, a clamping member which is formed separately from the pole-mounted equipment mounting member and is provided with a bracket mounting bolt hole through which the bracket mounting bolt that has passed through the bracket mounting bolt hole in the vertical portion passes, and which clamps the pole mounting bracket between the pole-mounted equipment mounting member and the pole-mounted equipment mounting member fastened by the bracket mounting bolt and nut; The clamping member has a back plate portion provided with at least two bracket mounting bolt holes vertically spaced apart by the height direction of the bracket, and a pair of side plate portions bent from both sides of the back plate portion, the pair of side plate portions having bracket lateral side surface abutting side plate portions whose end faces abut against the lateral side surfaces of the bracket, bracket upper protruding plate portions protruding along the upper side surface of the bracket from the upper side of the bracket lateral side surface abutting side plate portions, and bracket lower protruding plate portions protruding along the lower side surface of the bracket from the lower side of the bracket lateral side surface abutting side plate portions, and a gap is provided in the vertical direction between the bracket lateral side surface abutting side plate portions and the bracket upper protruding plate portion and between the bracket lower protruding plate portion and the bracket lateral side surface abutting side plate portions. It is characterized by: Furthermore, in the pole-mounted equipment mounting bracket of the present invention, the vertical and horizontal portions that constitute the pole-mounted equipment mounting member are formed by bending a single steel plate cut to a predetermined shape, and each portion is composed of a back plate portion and a pair of side plate portions bent inward from both the left and right sides of the back plate portion, and after bending at the boundary between the vertical and horizontal portions, the end faces of the pair of side plate portions of the vertical portion and the end faces of the pair of side plate portions of the horizontal portion are butt-welded to each other. The pole equipment mounting bracket according to the present invention is also characterized in that the height from the lower end surface of the upper protruding plate portion of the bracket to the upper side surface of the horizontal portion is at least 200 mm. In addition, the pole-mounted equipment installation method of the present invention is characterized in that when any of the above-mentioned multiple pole-mounted equipment mounting brackets are fixed to the pole mounting bracket at a predetermined interval, the orientation of the horizontal portions of multiple adjacent pole-mounted equipment mounting brackets is alternately changed while fixing them to the pole mounting bracket, and the pole-mounted equipment is installed on the horizontal portions whose orientations are alternately changed. Effect of the Invention

[0009] The pole-mounted equipment mounting bracket of the present invention has a vertical portion and a horizontal portion, the vertical portion having an arm mounting bolt hole for passing an arm mounting bolt through and fastening with a nut, while the horizontal portion has a pole-mounted equipment mounting bolt hole for passing the pole-mounted equipment mounting bolt through and fastening with a nut to mount the pole-mounted equipment, and a clamping member that is constructed separately from the pole-mounted equipment mounting member, has an arm mounting bolt hole through which the arm mounting bolt that has passed through the arm mounting bolt hole in the vertical portion can pass, and clamps the pole mounting arm between the pole-mounted equipment mounting member fastened with the arm mounting bolt and nut. Therefore, the pole-mounted equipment mounting bracket of the present invention is fixed to the pole by clamping the pole with the pole-mounted equipment mounting member and clamping member using the pole-mounted equipment mounting bolt and nut, and pole-mounted equipment such as a high-voltage cutout or insulator is attached by passing the equipment mounting bolt through the pole-mounted equipment mounting bolt hole in the horizontal part extending from the upper end of the vertical part, thereby eliminating the need for an orthogonal crossing arm that is installed across the pole mounting arm and eliminating the intersections between the arms, thereby preventing the accumulation of snow at the intersections between the arms and significantly reducing the workload of removing snow, as well as improving workability and reducing product costs by the amount of the orthogonal crossing arm being omitted. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a perspective view of a pole equipment mounting bracket according to an embodiment of the present invention. [Diagram 2] 1A to 1C are a front view, a plan view, and a bottom view, respectively, of a pole-mounted equipment mounting bracket according to an embodiment of the present invention. [Diagram 3] 1A and 1B are a left side view and a right side view, respectively, of a pole-mounted equipment mounting bracket according to an embodiment of the present invention. [Figure 4] FIG. 2 is a perspective view of a pole equipment mounting member constituting the pole equipment mounting bracket of the embodiment of the present invention. [Diagram 5] 1A to 1D are a front view, a plan view, a bottom view, and an enlarged view of part A of a pole-mounted equipment mounting bracket according to an embodiment of the present invention. [Figure 6] 1A and 1B are a left side view and a right side view, respectively, of a pole-mounted equipment mounting member that constitutes a pole-mounted equipment mounting bracket according to an embodiment of the present invention. [Figure 7] FIG. 2 is a perspective view of a clamping member that constitutes the pole equipment mounting bracket of the embodiment of the present invention. [Figure 8] 1A to 1E are a front view, a left side view, a right side view, a plan view, and a bottom view, respectively, of a clamping member that constitutes a pole equipment mounting bracket of an embodiment of the present invention. [Figure 9]1 is a perspective view showing a state in which pole equipment is attached to a pole equipment mounting bracket of an embodiment of the present invention. FIG. [Figure 10] 1A and 1B are a plan view and a front view, respectively, showing a state in which a pole-mounted device 4 is mounted on a pole-mounted device mounting bracket 1 according to an embodiment of the present invention. [Figure 11] 1A and 1B are a perspective view and a front view, respectively, showing a pole-mounted equipment mounting bracket according to an embodiment of the present invention fixed to a pole mounting bracket and a pole-mounted equipment mounted to the pole-mounted equipment mounting bracket. [Figure 12] 1A and 1B are a plan view and a left side view, respectively, showing a pole-mounted equipment mounting bracket of an embodiment of the present invention fixed to a pole mounting bracket and a pole-mounted equipment mounted to the pole-mounted equipment mounting bracket. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, an embodiment of the pole equipment mounting bracket according to the present invention will be described with reference to the drawings. Note that the embodiment described below is merely one example of the present invention, and the present invention is not limited to the following embodiment, and can be modified as appropriate within the scope of the technical concept of the present invention.

[0012] <Configuration of the pole-mounted equipment mounting bracket 1 according to the embodiment of the present invention> A pole-mounted equipment mounting bracket 1 of an embodiment of the present invention is configured as shown in Figures 1 to 3, and is a bracket for mounting pole-mounted equipment 4 such as high-voltage cutouts and insulators to a pole mounting bracket 3 extending horizontally from a pole 2 without using an orthogonal cross bracket, and is configured with a pole-mounted equipment mounting member 11, a clamping member 12 configured separately from the pole-mounted equipment mounting member 11, two sets of bracket mounting bolts 13a and nuts 13b, one set of pole-mounted equipment mounting bolts 14a and nut 14b, etc.

[0013] (Pole-mounted equipment mounting member 11) The pole-mounted equipment mounting member 11 is formed by bending a single steel plate cut to a predetermined shape as shown in Figures 4 to 6 into an upside-down L-shape when viewed from the front, and has a vertical portion 11a having a predetermined length in the vertical direction and a horizontal portion 11b having a predetermined length in the horizontal direction from the upper end of the vertical portion 11a.

[0014] The vertical portion 11a is composed of a back plate portion 11a1 and a pair of side plate portions 11a2, 11a2 bent inward at approximately 90 degrees from both the left and right sides of the back plate portion 11a1, and the back plate portion 11a1 is provided with arm mounting bolt holes 11a11, 11a12 for inserting two arm mounting bolts 13a at a distance of at least the height H (see FIG. 11(b)) of the pole mounting arm 3. Since a so-called square root bolt is used as the arm mounting bolt 13a, the shape of the arm mounting bolt holes 11a11, 11a12 is formed into a square shape into which the square root portion of the arm mounting bolt 13a fits.

[0015] The horizontal portion 11b is integral with the vertical portion 11a and is formed by bending its upper end, and is composed of a back plate portion 11b1 and a pair of side plate portions 11b2, 11b2 bent inwardly at approximately 90 degrees from both the left and right sides of the back plate portion 11b1, and the back plate portion 11b1 is provided with a pole-mounted equipment mounting bolt hole 11b11 for fastening the pole-mounted equipment 4 with a pole-mounted equipment mounting bolt 14a and a nut 14b. Note that, since the pole-mounted equipment mounting bolt 14a is also a so-called square root bolt like the arm mounting bolt 13a, the pole-mounted equipment mounting bolt hole 11b11 is formed in a square shape into which the square root portion of the pole-mounted equipment mounting bolt 14a fits.

[0016] Here, the reason why the pole-mounted device mounting member 11 is formed in an upside-down L-shape in front view with the vertical portion 11a and the horizontal portion 11b having a predetermined length in the horizontal direction from the upper end of the vertical portion 11a is that pole-mounted devices 4 such as cutouts are installed at a high position on the pole 2, and in areas with heavy snowfall, snow caps form on the cutouts, etc., and the snow caps become thicker, but when the pole-mounted device mounting bracket 1 is installed on the pole mounting arm 3, the vertical portion 11a erected from the pole mounting arm 3 makes it possible to separate the snow caps on the pole-mounted devices 4 such as cutouts from the snow caps on the pole mounting arm 3 in the vertical direction, preventing the snow caps from combining and becoming thicker. Also, by adopting a structure in which multiple pole-mounted devices 4 such as cutouts are installed independently, the effect of separating the snow caps can be obtained by appropriately increasing the distance between each pole-mounted device 4.

[0017] (Holding member 12) The clamping member 12 is used to attach the pole equipment mounting bracket 1 to the pole mounting arm 3 by clamping the pole equipment mounting arm 3 between it and the pole equipment mounting member 11 as shown in Figure 1 etc., and is formed by bending inward a single steel plate cut to a specified shape as shown in Figures 4 to 6.

[0018] In other words, the clamping member 12 is composed of a back plate portion 12a and a pair of left and right side plate portions 12b, 12b bent inward by approximately 90 degrees from both the left and right sides of the back plate portion 12a. The back plate portion 12a is divided into a central back plate portion 12a1 which faces the pole mounting arm 3 and has a length approximately the same as the height H of the pole mounting arm 3, and an upper back plate portion 12a2 and a lower back plate portion 12a3 which are provided above and below the central back plate portion 12a1. The upper back plate portion 12a2 and the lower back plate portion 12a3 are provided with arm mounting bolt holes 12a21, 12a31, respectively, for inserting arm mounting bolts 13a in alignment with the arm mounting bolt holes 11a11, 11a12 of the pole-mounted equipment mounting member 11 at a distance of at least the height H of the pole mounting arm 3.

[0019] The pair of left and right side plate portions 12b, 12b each have an arm lateral side abutting side plate portion 12b1, 12b1 whose end face abuts the lateral side of the pillar mounting arm 3, an arm upper protruding plate portion 12b2, 12b2 that protrudes along the upper side of the pillar mounting arm 3 from the upper side of the arm lateral side abutting side plate portion 12b1, 12b1, and an arm lower protruding plate portion 12b3, 12b3 that protrudes along the lower side of the pillar mounting arm 3 from the lower side of the arm lateral side abutting side plate portion 12b1, 12b1, and gaps 12b4, 12b4, 12b5, 12b5 are provided in the vertical direction, i.e., up and down, between the arm lateral side abutting side plate portions 12b1, 12b1, the arm upper protruding plate portions 12b2, 12b2, and the arm lower protruding plate portions 12b3, 12b3.

[0020] Therefore, when the arm mounting bolts 13a are passed through the arm mounting bolt holes 12a21, 12a31 of the back plate portion 12a and the nuts 13b are tightened to clamp the pole mounting arm 3 between the pole-mounted equipment mounting member 11 and the clamping member 12, the end faces of the arm lateral side abutting side plate portions 12b1, 12b1 press against and abut the lateral sides of the pole mounting arm 3, and the upper back plate portion 12a2 and the lower back plate portion 12a3 are bent relative to the central back plate portion 12a1 and inclined toward the pole-mounted equipment mounting member 11, so that the lower end faces of the arm upper protruding plate portions 12b2, 12b2 and the upper end faces of the arm lower protruding plate portions 12b3, 12b3 reliably press against and abut the upper and lower sides of the pole mounting arm 3, respectively. This more reliably presses against and abuts the three sides of the pole mounting arm 3 from three directions, allowing the pole mounting arm 3 to be reliably attached.

[0021] Here, the height from the lower end surface of the upper protruding plate portions 12b2, 12b2 of the clamping member 12 to the upper side surface of the back plate 11b1 of the horizontal portion 11b is at least 200 mm, and in this embodiment, it is 300 mm. The upper limit of the height is determined by the weight of the pole equipment to be mounted on this pole equipment mounting member 11, the weight of snow that covers the pole equipment mounting member 11, and the bearing strength of the pole equipment mounting member 11, but it is desirable that it is about 300 mm.

[0022] The reason for this is that when the pole-mounted equipment mounting bracket 1 of this embodiment is fixed to the pole mounting arm 3, by making the height from the lower end surface of the upper protruding plate portions 12b2, 12b2 of the clamping member 12 to the upper side surface of the back plate 11b1 of the horizontal portion 11b 300 mm, the height from the upper side surface of the pole mounting arm 3 to the upper side surface of the back plate 11b1 of the horizontal portion 11b is also 300 mm, and it has been confirmed as a result of experiments, etc., that it is possible to prevent bird damage, such as crows and the like that land on the pole mounting arm 3 pecking at the bottom, etc. of the cut-out pole-mounted equipment 4 and causing malfunctions.

[0023] (Arm mounting bolt 13a and nut 13b, etc.) As described above, the arm mounting bolt 13a and the pole-mounted equipment mounting bolt 14a are well-known square root bolts, and well-known hexagonal nuts are used as the nuts 13b, 14b that are screwed onto them.

[0024] <Method for mounting a pole-mounted device using the pole-mounted device mounting bracket 1 according to an embodiment of the present invention> Next, an example of a method for mounting a pole equipment using the pole equipment mounting bracket 1 of the embodiment according to the present invention configured as described above will be described.

[0025] Fig. 9 is a perspective view showing a state in which a pole equipment 4 is attached to a pole equipment mounting bracket 1 of an embodiment according to the present invention, and Figs. 10(a) and (b) are a plan view and a front view thereof. Figs. 11(a) and (b) are a perspective view and a front view, respectively, showing a state in which a pole equipment mounting bracket 1 of an embodiment according to the present invention is fixed to a pole mounting bracket 3 and a pole equipment 4 is attached to the pole equipment mounting bracket 1, and Figs. 12(a) and (b) are a plan view and a left side view, respectively, of that state.

[0026] As shown in Figures 9 and 10, the pole-mounted equipment 4 is configured by providing a pole-mounted equipment main body 4a with a mounting bracket 4b for mounting the pole-mounted equipment main body 4a to a pole-mounted equipment mounting bracket 1 and an orthogonal cross bracket. After aligning the position of the bolt hole provided in the mounting bracket 4b with the pole-mounted equipment mounting bolt hole 11b11 of the pole-mounted equipment mounting member 11 of the pole-mounted equipment mounting bracket 1, the pole-mounted equipment mounting bolt 14a is passed through from below and fastened with a nut 14b.

[0027] As shown in Figs. 11 and 12, the transformer 5 and the like are attached to the support 2 by means of adjustable band fittings 6, 6 and the like, and the support mounting bracket 3 is fixed by means of adjustable band fittings 7, 7 and the like.

[0028] Three pole-mounted equipment mounting brackets 1 are provided on the pole mounting arm 3 at a predetermined interval, and the three pole-mounted equipment mounting brackets 1 alternately change the orientation of the horizontal portions 11b to mount the pole-mounted equipment 4 to the pole mounting arm 3, so that adjacent pole-mounted equipment 4 are mounted alternately on the left and right sides of the pole mounting arm 3.

[0029] This prevents pole-mounted equipment 4 from being installed on one side of the pole mounting arm 3, making it possible to ensure a large gap between adjacent pole-mounted equipment 4, and preventing snow accumulation on the pole mounting arm 3 and around the pole-mounted equipment 4 from becoming thicker.

[0030] Incidentally, the method of mounting the pole-mounted equipment mounting bracket 1 of the embodiment alternately on the left and right along the longitudinal direction of the pole mounting arm 3 is merely one example, and only one pole-mounted equipment mounting bracket 1 of the embodiment may be provided on the pole mounting arm 3, or, if multiple pole-mounted equipment mounting brackets 1 are provided, they may of course be provided on only one side, either the left or right, at a predetermined interval along the longitudinal direction of the pole mounting arm 3.

[0031] <Summary of the pole-mounted device mounting bracket 1 according to the embodiment of the present invention> As described above, the pole-mounted equipment mounting bracket 1 of the embodiment of the present invention has a vertical portion 11a and a horizontal portion 11b, in which the vertical portion 11a is provided with an arm mounting bolt hole 11a11 for passing the arm mounting bolt 13a through and fastening it with a nut 13b, while the horizontal portion 11b is provided with a pole-mounted equipment mounting bolt hole 11b11 for passing the pole-mounted equipment mounting bolt 14a through and fastening it with a nut 14b to mount the pole-mounted equipment 4, and a clamping member 12 that is constructed separately from the pole-mounted equipment mounting member 11, is provided with an arm mounting bolt hole 12a21 through which the arm mounting bolt 13a passed through the arm mounting bolt hole 11a11 of the vertical portion 11a passes, and is fastened by the arm mounting bolt 13a and the nut 13b.

[0032] Therefore, according to the pole-mounted equipment mounting bracket 1 of the embodiment of the present invention, the pole mounting arm 3 is clamped between the pole-mounted equipment mounting member 11 and the clamping member 12 using the arm mounting bolt 13a and nut 13b to fix it to the pole mounting arm 3, and pole-mounted equipment 4 such as a high-voltage cutout or insulator is attached to the pole-mounted equipment mounting bolt hole 11b11 of the horizontal portion 11b extending horizontally from the upper end of the vertical portion 11a, thereby eliminating the need for an orthogonal cross arm that crosses the pole mounting arm 3 and eliminating the intersections between the arms, which prevents the snow from thickening at the intersections between the arms and significantly reduces the workload of removing the snow. It is also possible to prevent the pole-mounted equipment from falling or being damaged due to the pole mounting arm 3 being deformed or bent by the weight of the snow, and it is also possible to prevent the falling of thickened snow.

[0033] In addition, the horizontal portion 11b of the pole-mounted equipment mounting member 11 for mounting the pole-mounted equipment 4 is provided at the upper end of the vertical portion 11a, and is positioned higher than the pole mounting arm 3, so that the pole-mounted equipment 4 such as high-voltage cutouts and insulators are also installed at a higher position than the pole mounting arm 3, making it possible to separate it from the snow cap that accumulates on the pole mounting arm 3, so that the snow cap on the pole mounting arm 3 can be separated from the snow cap on the pole-mounted equipment 4, and in this respect too, the snow cap on the pole mounting arm 3 and around the pole-mounted equipment 4 can be prevented from becoming thicker.

[0034] Also, since there is no need for orthogonal cross arms that are installed across the pole mounting bracket 3 and there are no intersections between the brackets, this is extremely effective as a measure to prevent crows and other birds that often build nests at the intersections of brackets, and since there is no need for orthogonal cross arms, it is possible to reduce the cost and transportation costs of the orthogonal cross arms. Also, since there is no need for orthogonal cross arms, there is no need for three pin insulators, which greatly reduces the work time required to install the pole equipment mounting bracket 1.

[0035] Furthermore, in the pole-mounted equipment mounting bracket 1 of the embodiment of the present invention, the vertical portion 11a and the horizontal portion 11b that constitute the pole-mounted equipment mounting member 11 are formed by bending a single steel plate cut to a predetermined shape, and each of them is composed of a back plate portion 12a and a pair of side plate portions 11a2, 11a2 bent inward from both the left and right sides of the back plate portion 12a, and at the boundary 11c between the vertical portion 11a and the horizontal portion 11b, end faces 11a21, 11a21 cut at a 45 degree angle of the pair of side plate portions 11a2, 11a2 of the vertical portion 11a are butt-welded to end faces 11b21, 11b21 cut at a 45 degree angle of the pair of side plate portions 11b2, 11b2 of the horizontal portion 11b.

[0036] Therefore, even when the pole-mounted equipment mounting member 11 is formed in an L-shape with a vertical portion 11a and a horizontal portion 11b, and pole-mounted equipment 4 having a high-voltage cutout, insulators, etc. at the tip of the horizontal portion 11b is mounted to the horizontal portion 11b, the strength of the pole-mounted equipment mounting member 11 is improved, so that the pole-mounted equipment 4 can be reliably supported even if the snow cap on the pole-mounted equipment 4 increases in size and its weight in areas with heavy snowfall.In addition, the pole-mounted equipment mounting member 11 can be constructed without using square pipes (square steel pipes), thick steel plates, etc., taking into account the increase in snow cap size in areas with heavy snowfall.This makes it possible to reduce the weight of the fittings themselves, and also reduces the burden of the installation work for the pole-mounted equipment mounting fittings 1 and the pole-mounted equipment 4.

[0037] In addition, in the pole-mounted equipment mounting bracket 1 according to the embodiment of the present invention, the clamping member 12 has a back plate portion 12a provided with arm mounting bolt holes 12a21, 12a31 that are spaced apart vertically in the height direction of the pole mounting arm 3, and a pair of side plate portions 12b, 12b bent from both sides of the back plate portion 12a. The pair of side plate portions 12b, 12b are arm-side surface abutting side plate portions 12b1, 12b1 whose end faces abut against the lateral side surfaces of the pole mounting arm 3, and arm-side surface abutting side plate portions 12b1, 12b2 whose end faces abut against the lateral side surfaces of the pole mounting arm 3. The arm has upper protruding plate portions 12b2, 12b2 protruding from above b1 along the upper side of the pillar mounting arm 3, and lower protruding plate portions 12b3, 12b3 protruding from below the arm lateral side abutting side plate portions 12b1, 12b1 along the lower side of the pillar mounting arm 3, and vertical gaps 12b4, 12b5 are provided between the arm lateral side abutting side plates 12b1, 12b1 and the arm upper protruding plate portions 12b2, 12b2 and between the arm lower protruding plate portions 12b3, 12b3, respectively.

[0038] Therefore, when the arm mounting bolts 13a are passed through the arm mounting bolt holes 12a21, 12a31 of the back plate portion 12a and the nuts 13b are tightened to clamp the pole mounting arm 3 between the pole-mounted equipment mounting member 11 and the clamping member 12, the end faces of the arm lateral side abutting side plate portions 12b1, 12b1 press and abut against the lateral sides of the pole mounting arm 3, and the upper back plate portion 12a2 and the lower back plate portion 12a3 bend relative to the central back plate portion 12a1 and incline toward the pole-mounted equipment mounting member 11, so that the lower end faces of the arm upper protruding plate portions 12b2, 12b2 and the upper end faces of the arm lower protruding plate portions 12b3, 12b3 press and abut against the upper and lower sides of the pole mounting arm 3, respectively, and clamp the pole mounting arm 3 so as to bite into the three sides from three directions, thereby enabling it to be securely fixed to the pole mounting arm 3.

[0039] In particular, in the case of the clamping member 12 of the embodiment, vertical gaps 12b4, 12b5 are provided between the arm lateral side abutment side plate portions 12b1, 12b1 and the arm upper protruding plate portions 12b2, 12b2 and the arm lower protruding plate portions 12b3, 12b3, respectively, so that when the clamping member 12 clamps the pillar mounting arm 3, the upper back plate portion 12a2 and the lower back plate portion 12a3 are more likely to bend relative to the central back plate portion 12a1, and the lower end surfaces of the arm upper protruding plate portions 12b2, 12b2 and the upper end surfaces of the arm lower protruding plate portions 12b3, 12b3 are more likely to bite into the upper and lower sides of the pillar mounting arm 3, respectively, thereby enabling the arm to be fixed more securely to the pillar mounting arm 3.

[0040] In the pole-mounted equipment mounting bracket 1 of the embodiment according to the present invention, the height from the pole mounting arm 3 to the horizontal portion 11b is at least 200 mm, and in this embodiment it is 300 mm.

[0041] As a result, it is possible to sufficiently separate the height of pole-mounted equipment 4 such as high-voltage cutouts and insulators from the upper side of the pole mounting arm 3, making it possible to reliably separate the snow cover on the pole mounting arm 3 from the snow cover on the pole-mounted equipment 4, and reliably preventing the snow cover on the pole mounting arm 3 and around the pole-mounted equipment 4 from becoming thicker.

[0042] In addition, by making the height from the lower end surface of the upper protruding plate portions 12b2, 12b2 of the clamping member 12 to the upper side surface of the back plate 11b1 of the horizontal portion 11b at least 200 mm and not less than 300 mm, it is possible to prevent crows and other birds that perch on the pillar mounting arm 3 from pecking at the bottom of the cutout pillar-mounted equipment 4 and causing damage to the pillar-mounted equipment 4.

[0043] In addition, in the pole-mounted equipment 4 mounting method of the embodiment of the present invention, when the above-mentioned multiple pole-mounted equipment mounting brackets 1 are fixed at a predetermined interval to the pole mounting bracket 3 extending horizontally from the pole 2, the orientation of the horizontal portion 11b of the equipment mounting member 11 of each pole-mounted equipment mounting bracket 1 is alternately changed and fixed.

[0044] Therefore, when multiple pole-mounted equipment mounting brackets 1 of the embodiment are used to install multiple pole-mounted equipment 4 at intervals in the longitudinal direction of the pole mounting arm 3, it is possible to ensure a larger interval between adjacent pole-mounted equipment 4 than when multiple pole-mounted equipment mounting brackets 1 are installed on the pole mounting arm 3 without changing the orientation of the horizontal portion 11b, which also makes it possible to prevent the accumulation of snow on the pole mounting arm 3 and around the pole-mounted equipment 4 from becoming thicker.

[0045] In the above embodiment, the length of the vertical portion 11a of the pole equipment mounting member 11 constituting the pole equipment mounting bracket 1 is constant, and the height from the lower end surface of the upper protruding plate portions 12b2, 12b2 of the clamping member 12 to the upper side surface of the back plate 11b1 of the horizontal portion 11b, i.e., the height from the upper side surface of the pole mounting bracket 3 to the upper side surface of the back plate 11b1 of the horizontal portion 11b, is at least 200 mm or more, and is set to 300 mm in this embodiment, but the present invention is not limited to this, and the height may be set to 300 mm, 350 mm, or 30 When multiple pole-mounted equipment mounting brackets 1 are provided, it is of course possible to prepare multiple ones with different lengths, such as 200 mm, 250 mm, 350 mm, etc., or to change the height of the arm mounting bolt holes 11a11, 11a12 provided below the vertical portion 11a of the pole-mounted equipment mounting member 11, or to provide three or more holes so that the height at which the arm mounting bolt 13a is passed can be changed, so that the height from the upper side of the pole mounting arm 3 to the upper side of the back plate 11b1 of the horizontal portion 11b can be changed for each pole-mounted equipment mounting bracket 1.

[0046] In the above embodiment, the boundary 11c between the vertical portion 11a and the horizontal portion 11b that constitute the pole-mounted device mounting member 11 is described as being welded by butting the end faces 11a21, 11a21 cut at an angle of 45 degrees of the pair of side plate portions 11a2, 11a2 of the vertical portion 11a against the end faces 11b21, 11b21 cut at an angle of 45 degrees of the pair of side plate portions 11b2, 11b2 of the horizontal portion 11b. However, the present invention is not limited to this. It is possible to simply butt end faces 11a21, 11a21 and end faces 11b21, 11b21 together without welding, or to cut them at an angle other than 45 degrees and weld or simply butt end faces 11a21, 11a21 and end faces 11b21, 11b21 together.It is also possible to manufacture pole-mounted equipment mounting member 11 having vertical portion 11a and horizontal portion 11b by pressing using a mold or the like without welding.

[0047] Furthermore, in the method of mounting pole-mounted equipment 4 of the embodiment of the present invention, when mounting multiple pole-mounted equipment mounting brackets 1 of the embodiment of the present invention to the pole mounting arm 3, the orientation of the horizontal portion 11b of the pole-mounted equipment mounting member 11 is alternately changed for mounting. However, the present invention is not limited to this, and it is of course also possible to mount multiple pole-mounted equipment mounting brackets 1 on the pole mounting arm 3 without changing the orientation of the horizontal portion 11b, and to mount each pole-mounted equipment 4 on the horizontal portion 11b. [Explanation of symbols]

[0048] 1 Pole equipment mounting bracket 11 Pole equipment mounting parts 11a Vertical section 11a1 Back plate part 11a11, 11a12 Bracket mounting bolt holes 11a2 Side plate part 11a21 End face 11b Lateral part 11b1 Back plate part 11b11 Bolt holes for pole-mounted equipment installation 11b2 Side plate part 11b21 End face 11c boundary 12 Clamping member 12a Back plate part 12a1 Center back plate section 12a2 Upper back plate part 12a21 Bracket mounting bolt hole 12a3 Lower back plate part 12a31 Bracket mounting bolt hole 12b Side plate part 12b1 Arm arm side contact side plate 12b2 Upper protruding plate of bracket 12b3 Arm arm lower protruding plate part 12b4,12b5 gap 13a Bracket mounting bolt 13b Nut 14a Pole equipment mounting bolts 14b Nut 2 pillars 3 Post mounting bracket 4 Pole equipment 5. Transformer 6,7 Adjustable band fittings

Claims

1. A pole-mounted equipment mounting bracket for mounting a pole-mounted equipment to a pole mounting bracket attached to a pole, a pole-mounted equipment mounting member having a vertical portion having a predetermined length in the vertical direction and a horizontal portion having a predetermined length in the horizontal direction from an upper end of the vertical portion, the vertical portion being provided with an arm mounting bolt hole for fastening an arm mounting bolt with a through-nut, while the horizontal portion being provided with a pole-mounted equipment mounting bolt hole for fastening a pole-mounted equipment mounting bolt with a through-nut to mount the pole-mounted equipment; a clamping member configured separately from the pole-mounted equipment mounting member, the clamping member having a bracket mounting bolt hole through which the bracket mounting bolt passed through the bracket mounting bolt hole in the vertical portion passes, and the clamping member clamping the pole mounting bracket between the pole-mounted equipment mounting member and the pole-mounted equipment mounting member fastened by the bracket mounting bolt and a nut, The clamping member is a back plate portion provided with at least two bolt holes for mounting the bracket, the bolt holes being spaced apart vertically in the height direction of the bracket; A pair of side plate portions bent from both sides of the back plate portion, The pair of side plate portions are an arm lateral side abutment side plate portion having an end surface abutting against the lateral side surface of the arm; an upper arm protruding plate portion protruding from an upper side of the arm lateral side abutment side plate portion along an upper side surface of the arm; a bracket lower protruding plate portion protruding along a lower surface of the bracket from a lower side of the bracket lateral surface abutting side plate portion, A pole-mounted equipment mounting bracket, characterized in that a gap is provided in the vertical direction between the arm lateral side abutment side plate portion and the arm upper protruding plate portion and between the arm lower protruding plate portion.

2. The pole-mounted equipment mounting bracket according to claim 1, The vertical portion and the horizontal portion constituting the pole-mounted equipment mounting member are each formed by bending a single steel plate cut to a predetermined shape, and each of the vertical portion and the horizontal portion is formed by bending a back plate portion and a pair of side plate portions bent inward from both the left and right sides of the back plate portion, a pair of side plate portions of the vertical portion and a pair of side plate portions of the horizontal portion are butt-welded to each other after being bent at the boundary between the vertical portion and the horizontal portion.

3. In the pole-mounted equipment mounting bracket according to claim 1, A pole-mounted equipment mounting bracket, characterized in that the height from the lower end surface of the upper protruding plate portion of the bracket to the upper side surface of the horizontal portion is at least 200 mm.

4. In the pole-mounted equipment mounting bracket according to claim 2, A pole-mounted equipment mounting bracket, characterized in that the height from the lower end surface of the upper protruding plate portion of the bracket to the upper side surface of the horizontal portion is at least 200 mm.

5. A pole-mounted equipment mounting method, characterized in that when a plurality of pole-mounted equipment mounting brackets according to any one of claims 1 to 4 are fixed to a pole mounting bracket at a predetermined interval, the orientation of the horizontal portions of a plurality of adjacent pole-mounted equipment mounting brackets is alternately changed while the brackets are fixed to the pole mounting bracket, and pole-mounted equipment is mounted on the horizontal portions whose orientations are alternately changed.

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