Electric wire support cover

Abstract

To reduce the labor required for protective treatment to prevent workers from getting electric shock for electric wire support parts.SOLUTION: An electric wire support cover comprises: a support member cover portion 100a (an upper protruding portion 1c of a front insulating sheet 1 and an upper protruding portion 2c of a rear insulating sheet 2) that is formed of an insulating sheet and can cover a second connection portion 220 and a fourth shed portion 234 of a polymer insulator 200; and a wire cover portion 100b (a right protruding portion 1a, a left protruding portion 1b, a lower protruding portion 1d, a central portion 1e of the front insulating sheet 1, and a right protruding portion 2a, a left protruding portion 2b, a lower protruding portion 2d, and a central portion 2e of the rear insulating sheet 2) formed of an insulating sheet and capable of covering at least a supported portion 300a of a wire 300.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a wire support cover. [Background technology]

[0002] Electric wires carrying high-voltage electricity used for train operations, etc. are usually fixed to structures such as steel towers via support members such as insulators that support the electric wires. However, when carrying out work around such structures such as painting or improving equipment, if such electric wires come into contact with the parts supported by the support members (hereinafter, the support members and the electric wires in the vicinity of the parts supported by the support members are collectively referred to as the "electric wire support parts"), there is a danger of electric shock to the worker.

[0003] Therefore, in order to prevent electric shock to workers performing any work near the electric wire support parts, it is common to carry out protective treatment for such electric wire support parts before starting work to prevent electric shock to the workers. Examples of materials that can be used for such protective treatment include flat insulating sheets (see, for example, Patent Document 1). When using such a planar insulating sheet for protection, it is necessary to perform the protection process, for example, by wrapping it around both the support member and the electric wire that constitute the electric wire support part, and then securing it with tape or the like. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2018-11401 A Summary of the Invention [Problem to be solved by the invention]

[0005] Protecting wire support parts using such flat insulating sheets requires a great deal of effort, such as wrapping the sheet and securing it with tape, which places a heavy burden on workers.

[0006] An object of the present invention is to reduce the effort required for protective treatment performed on an electric wire support portion to prevent an operator from getting an electric shock. [Means for solving the problem]

[0007] In order to solve the above problem, the invention described in claim 1 is a wire support cover, A support member cover portion formed of an insulating sheet and capable of covering at least a portion of a support member that supports an electric wire; a wire cover portion formed of an insulating sheet and capable of covering at least a portion of the wire supported by the support member; The present invention is characterized by comprising:

[0008] The invention described in claim 2 is the electric wire support part cover described in claim 1, a division portion in which the insulating sheet is divided; A connecting means for detachably connecting the divided parts; The present invention is characterized by comprising:

[0009] The invention described in claim 3 is the electric wire support part cover described in claim 2, The division portion includes a first division portion formed in the wire cover portion, The connecting means includes first connecting means that allows the first divided portion to be detachably attached.

[0010] The invention described in claim 4 is the electric wire support part cover described in claim 3, The connector further comprises a protruding portion formed so as to protrude from at least one of the first divided portions, and at least a portion of the first connection means is provided on the protruding portion.

[0011] The invention described in claim 5 is the electric wire support part cover described in claim 2, the divided portion includes a second divided portion formed so as to be continuous from the electric wire cover portion to the support member cover portion, The connecting means includes second connecting means that allows the second divided portion to be detachably attached.

[0012] The invention described in claim 6 is the electric wire support part cover described in claim 2, The connecting means is characterized by being a hook-and-loop fastener.

[0013] The invention described in claim 7 is the electric wire support part cover described in claim 6, The hook-and-loop fastener is characterized in that the surface on which the hook-shaped naps are provided faces outward.

[0014] The invention described in claim 8 is the electric wire support part cover described in claim 3, The wire cover portion is formed into a cylindrical shape extending along the electric wire when attached so as to cover the portion of the electric wire supported by the support member.

[0015] The invention described in claim 9 is the electric wire support part cover described in claim 8, The support member cover portion is formed so as to protrude from the electric wire cover portion.

[0016] The invention described in claim 10 is the electric wire support part cover described in claim 9, The wire cover portion is characterized in that, when attached so as to cover the portion of the wire supported by the support member, it is formed into a cylindrical shape having a cross-sectional shape that gradually becomes wider from one end connected to the support member cover portion to the other end.

[0017] The invention described in claim 11 is the electric wire support part cover according to any one of claims 1 to 10, The insulating sheet is characterized by having an EVAC layer.

[0018] The invention described in claim 12 is the electric wire support part cover according to any one of claims 1 to 10, The supporting member is characterized in that it is an insulator.

[0019] The invention described in claim 13 is the electric wire support part cover described in claim 12, The support member cover portion is formed so as to be able to cover at least the connection portion of the insulator to which the electric wire is connected and the cap portion disposed at a position closest to the connection portion.

[0020] The invention described in claim 14 is the electric wire support part cover according to any one of claims 1 to 10, The support member cover portion and the electric wire cover portion are characterized in that they are integrally formed by a first insulating sheet and a second insulating sheet that are arranged so as to overlap each other.

[0021] The invention described in claim 15 is the electric wire support part cover described in claim 14, The first insulating sheet and the second insulating sheet are welded to each other at least at a portion of their ends.

[0022] The invention described in claim 16 is the electric wire support part cover according to any one of claims 1 to 10, The insulating sheet is characterized in that at least a part of the corners thereof is rounded. Effect of the Invention

[0023] According to the present invention, it is possible to reduce the labor required for protective treatment performed on the electric wire support portion to prevent workers from getting electric shock. [Brief description of the drawings]

[0024] [Figure 1] 1 is a diagram showing a polymer insulator and an electric wire to be protected by an electric wire support part cover according to an embodiment of the present invention; [Diagram 2]1 is a front view of the electric wire support portion cover according to the embodiment, showing a state in which the first and second hook-and-loop fasteners are connected and the third and fourth hook-and-loop fasteners are disconnected. [Diagram 3] 1 is a rear view of the electric wire support portion cover according to the embodiment, in which the first and second hook-and-loop fasteners are connected and the third and fourth hook-and-loop fasteners are disconnected. [Figure 4] 1 is a front view of the electric wire support portion cover according to the embodiment, showing a state in which the first hook-and-loop fastener and the second hook-and-loop fastener and the third hook-and-loop fastener and the fourth hook-and-loop fastener are disconnected. [Diagram 5] 13A and 13B are diagrams illustrating a state in the middle of attaching the electric wire support part cover according to the embodiment so as to cover the polymer insulator and the electric wire. [Figure 6] 1 is a front view showing a state in which the electric wire support part cover according to the embodiment is attached so as to cover the polymer insulator and the electric wire. FIG. [Figure 7] 13 is a perspective view showing a state in which the electric wire support portion cover according to the embodiment is attached so as to cover the polymer insulator and the electric wire, in which the lower fourth surface fastener is not used. [Figure 8] 11A and 11B are bottom views showing the state in which the wire support part cover of the embodiment is attached so as to cover the polymer insulator and the wire, where (a) shows the state in which the lower fourth hook-and-loop fastener is not used, and (b) shows the state in which the lower fourth hook-and-loop fastener is used. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0025] Hereinafter, an electric wire support cover 100 according to an embodiment of the present invention will be described with reference to the drawings. However, the technical scope of the present invention is not limited to the illustrated examples. In the following, an example will be described in which the support member that supports the electric wire is an insulator (polymer insulator 200) whose cap portion is formed of a polymer as shown in Fig. 1, and the electric wire 300 is connected below the insulator. Also, the up-down direction, left-right direction, and front-rear direction will be defined based on the state in which the electric wire support part cover 100 is attached so as to cover the polymer insulator 200 and the electric wire 300 as shown in Fig. 6 and Fig. 7. That is, the horizontal direction in which the electric wire 300 extends is defined as the left-right direction, and the horizontal direction perpendicular to the left-right direction is defined as the front-rear direction.

[0026] [1 Configuration Description] First, the configuration of the electric wire support portion cover 100 will be described.

[0027] 2 to 4, the wire support part cover 100 is formed by overlapping two insulating sheets, one at the front and one at the back. The insulating sheet located at the front side is referred to as front insulating sheet 1, and the insulating sheet located at the rear side is referred to as rear insulating sheet 2.

[0028] The insulating sheet constituting the wire support part cover 100 is a sheet having an insulating layer formed of an insulator, and may be a single-layer sheet formed of only an insulating layer, or a multi-layer sheet in which a base fabric or the like is bonded in addition to the insulating layer. Regardless of the specific structure, an insulating sheet is considered to be any sheet-like member that has a layer formed of an insulator and has the effect of blocking electrical current between one side and the other side.

[0029] Specifically, the insulating layer is preferably made of EVAC (ethylene vinyl acetate copolymer), and a sheet having a base fabric laminated thereon is preferably used as the insulating layer. The base fabric may be made of, for example, the same EVAC as the insulating layer.

[0030] 2 and 4, the front insulating sheet 1 is divided into left and right parts at the center. The right side of the division is referred to as a first front insulating sheet 11, and the left side is referred to as a second front insulating sheet 12.

[0031] As shown in Figs. 2 and 4, the first front insulating sheet 11 and the second front insulating sheet 12 are formed so as to overlap in the front-rear direction at a predetermined width on the left and right at the central dividing portion.

[0032] In the portion where such first front side insulating sheet 11 and second front side insulating sheet 12 overlap in the front-to-rear direction, the rear surface of the first front side insulating sheet 11 is provided with a first hook-and-loop fastener 3, which is the female surface of the hook-and-loop fastener, i.e., the surface on which the loop-shaped nap of the hook-and-loop fastener is arranged, as shown in Figure 4.

[0033] In addition, in the portion where the first front side insulating sheet 11 and the second front side insulating sheet 12 overlap in the front-to-rear direction, the front side of the second front side insulating sheet 12 is provided with a second hook-and-loop fastener 4, which is the male surface of the hook-and-loop fastener, i.e., the surface on which the hook-shaped nap of the hook-and-loop fastener is arranged, as shown in Figure 4.

[0034] As a result, by connecting the first hook-and-loop fastener 3 and the second hook-and-loop fastener 4, the first front surface insulating sheet 11 and the second front surface insulating sheet 12 can be connected as shown in FIG.

[0035] It is preferable that the first hook-and-loop fastener 3 is attached not by sewing directly to the first front side insulating sheet 11, but by sewing to a sheet-like member that can be heat-welded to the first front side insulating sheet 11, and then welding the sheet-like member to the first front side insulating sheet 11. It is preferable that the second hook-and-loop fastener 4 is attached not by sewing directly to the second front side insulating sheet 12, but by sewing to a sheet-like member that can be heat-welded to the second front side insulating sheet 12, and then welding the sheet-like member to the second front side insulating sheet 12. The fact that such an attachment method is preferable also applies to the third hook-and-loop fastener 5 and the fourth hook-and-loop fastener 6 described later. This makes it possible to prevent a decrease in insulation due to minute holes occurring at the seams.

[0036] In addition, when the first front insulating sheet 11 and the second front insulating sheet 12 are connected, the front insulating sheet 1 is formed in a cross shape having protrusions (right protrusion 1a, left protrusion 1b, upper protrusion 1c, lower protrusion 1d) on the left and right and on the top and bottom as shown in Fig. 2. The portion other than these protrusions (the rectangular portion in the center) is referred to as a center portion 1e as shown in Fig. 2.

[0037] 2, the corners between the right protrusion 1a and the upper protrusion 1c, between the upper protrusion 1c and the left protrusion 1b, between the left protrusion 1b and the lower protrusion 1d, and between the lower protrusion 1d and the right protrusion 1a are rounded, that is, processed to make the shape of the end curved when viewed from the front-to-rear direction. These parts are called curved parts R1 to R4, respectively. 4, the upper right corner of the second front surface insulating sheet 12 is also rounded, forming a curved portion R5.

[0038] The rear insulating sheet 2 is formed in a cross shape having protrusions (right protrusion 2a, left protrusion 2b, upper protrusion 2c, lower protrusion 2d) on the left and right and on the top and bottom as shown in Fig. 3. The portion other than these protrusions (the rectangular portion in the center) is referred to as a center portion 2e as shown in Fig. 3.

[0039] 3, the corners between the right protrusion 2a and the upper protrusion 2c, between the upper protrusion 2c and the left protrusion 2b, between the left protrusion 2b and the lower protrusion 2d, and between the lower protrusion 2d and the right protrusion 2a are rounded, that is, processed to make the shape of the end curved when viewed from the front-to-rear direction. These parts are called curved parts R6 to R9, respectively.

[0040] That is, as shown in Figures 2 and 3, the rear side insulating sheet 2 is formed so that when viewed from the front-to-rear direction, it has the same shape as the front side insulating sheet 1 when the first front side insulating sheet 11 and the second front side insulating sheet 12 are connected.

[0041] 2 to 4, the front insulating sheet 1 and the rear insulating sheet 2 are connected at their upper ends at the upper protrusion 1c of the front insulating sheet 1 and the upper protrusion 2c of the rear insulating sheet 2. In other words, the front insulating sheet 1 and the rear insulating sheet 2 are formed from a continuous insulating sheet connected at this portion. This connection portion is referred to as connection portion S.

[0042] 2 to 4, a recess is provided in the left-right center of the upper end of the upper protrusion 1c of the front side insulating sheet 1 and the left-right center of the upper end of the upper protrusion 2c of the rear side insulating sheet 2, and only in this portion are the upper ends of the upper protrusions 1c of the front side insulating sheet 1 and 2c of the rear side insulating sheet 2 not connected. This portion is defined as an opening H.

[0043] The front insulating sheet 1 and the rear insulating sheet 2 are thermally welded at a portion of the front insulating sheet 1 from the upper end of the right protrusion 1a to the right end of the upper protrusion 1c and at a portion of the rear insulating sheet 2 from the upper end of the right protrusion 2a to the right end of the upper protrusion 2c, and at a portion of the front insulating sheet 1 from the upper end of the left protrusion 1b to the left end of the upper protrusion 1c and at a portion of the rear insulating sheet 2 from the upper end of the left protrusion 2b to the left end of the upper protrusion 2c. As shown in Figures 2 to 4, these welded portions are referred to as welded portions W.

[0044] Near the lower end of the front side of the front side insulating sheet 1, as shown in Figure 2, a third hook-and-loop fastener 5, which is the male surface of the hook-and-loop fastener, i.e., the surface on which the hook-shaped nap of the hook-and-loop fastener is arranged, is provided so as to extend in the left-right direction.

[0045] As shown in Figure 2, the third hook-and-loop fastener 5 is composed of a right third hook-and-loop fastener 51 and a central third hook-and-loop fastener 52 attached to the first front side insulating sheet 11, and a left third hook-and-loop fastener 53 attached to the second front side insulating sheet 12.

[0046] Near the lower end of the front side of the rear side insulating sheet 2, as shown in Figure 4, a fourth hook-and-loop fastener 6, which is the female side of the hook-and-loop fastener, i.e., the side on which the loop-shaped raised portions of the hook-and-loop fastener are arranged, is provided so as to extend in the left-right direction.

[0047] As shown in Figure 4, the fourth hook-and-loop fastener 6 is composed of an upper fourth hook-and-loop fastener 61 formed to extend from the right end of the right protruding portion 2a to the left end of the left protruding portion 2b along the lower end of the right protruding portion 2a and the lower end of the left protruding portion 2b, and a lower fourth hook-and-loop fastener 62 provided on the lower protruding portion 2d.

[0048] As a result, by connecting the third hook-and-loop fastener 5 and the fourth hook-and-loop fastener 6, it is possible to connect the lower end of the first front surface insulating sheet 11 and the lower end of the second front surface insulating sheet 12.

[0049] [2. Installation method and installation status] Next, a method of attaching the electric wire support part cover 100 so as to cover the electric wire support part in which the electric wires 300 are supported by the polymer insulator 200 will be described.

[0050] As shown in FIG. 1, the polymer insulator 200 comprises a first connection portion 210 which is a portion connected to a structure such as a steel tower, a second connection portion 220 which is a portion to which an electric wire 300 is connected, and a number of cap portions (from the top, a first cap portion 231, a second cap portion 232, a third cap portion 233 and a fourth cap portion 234) arranged between the first connection portion 210 and the second connection portion 220.

[0051] In the polymer insulator 200, a first shed portion 231, a second shed portion 232, a third shed portion 233, and a fourth shed portion 234 are formed of a polymer, which is an insulating material.

[0052] The electric wire 300 is a wiring for power transmission arranged so as to extend in the horizontal direction, and as shown in FIG. 1, is connected to the second connection portion 220 of the polymer insulator 200 and suspended in the air.

[0053] When attaching the wire support part cover 100 so as to cover the second connection part 220 and the fourth cap part 234 of the polymer insulator 200, as well as the part of the wire 300 supported by the second connection part 220 (hereinafter referred to as the "supported part 300a") and a specified range on either side of the part, first, as shown in Figure 4, the wire support part cover 100 is disconnected from the first hook-and-loop fastener 3 and the second hook-and-loop fastener 4, and from the third hook-and-loop fastener 5 and the fourth hook-and-loop fastener 6.

[0054] Next, the electric wire supporting portion cover 100 in this state is placed so as to cover the second connection portion 220 and the fourth cap portion 234 of the polymer insulator 200, and the supported portion 300a of the electric wire 300 and predetermined areas on the left and right sides thereof.

[0055] Specifically, the second connection portion 220 and the fourth shed portion 234 of the polymer insulator 200 are passed between the left end of the first front side insulating sheet 11 and the right end of the second front side insulating sheet 12 of the front side insulating sheet 1 to be positioned between the front side insulating sheet 1 and the rear side insulating sheet 2, and the electric wire 300 is passed between the lower end of the front side insulating sheet 1 and the lower end of the rear side insulating sheet 2 to be positioned between the front side insulating sheet 1 and the rear side insulating sheet 2, thereby achieving the state shown in Fig. 5. In this state, as shown in Fig. 5, the opening H at the upper end of the electric wire supporting part cover 100 is inserted into the portion of the polymer insulator 200 between the third shed portion 233 and the fourth shed portion 234.

[0056] In this state, by connecting the first hook-and-loop fastener 3 and the second hook-and-loop fastener 4 and connecting the third hook-and-loop fastener 5 and the fourth hook-and-loop fastener 6, as shown in Figures 6 and 7, the upper protrusion 1c of the front side insulating sheet 1 and the upper protrusion 2c of the rear side insulating sheet 2 of the wire support part cover 100 cover the second connection part 220 and the fourth cap part 234 of the polymer insulator 200, and the right protrusion 1a, the left protrusion 1b, the lower protrusion 1d, and the central part 1e of the front side insulating sheet 1 of the wire support part cover 100 and the right protrusion 2a, the left protrusion 2b, the lower protrusion 2d, and the central part 2e of the rear side insulating sheet 2 of the wire support part cover the supported part 300a of the wire 300 and a specified range to the left and right of the supported part 300a. Thus, the wire support part cover 100 can be attached.

[0057] When the third hook-and-loop fastener 5 and the fourth hook-and-loop fastener 6 are connected, the fourth hook-and-loop fastener 6 may have its upper fourth hook-and-loop fastener 61 connected to the third hook-and-loop fastener 5 at the center in the left-right direction as shown in Fig. 8(a), or may have its lower fourth hook-and-loop fastener 62 connected to the third hook-and-loop fastener 5 as shown in Fig. 8(b). When the lower fourth hook-and-loop fastener 62 is used, as shown in Fig. 8(b), the lower fourth hook-and-loop fastener 62 is connected to the third hook-and-loop fastener 5 at the center in the left-right direction and the upper fourth hook-and-loop fastener 61 is connected to the third hook-and-loop fastener 5 near both ends in the left-right direction, so that the upper fourth hook-and-loop fastener 61 and the lower fourth hook-and-loop fastener 62 are used together. When the lower fourth hook-and-loop fastener 62 provided on the lower protrusion 2d is used, as shown in FIG. 8(b), the front-to-rear spacing between the front-side insulating sheet 1 and the rear-side insulating sheet 2 can be made wider in the center in the left-to-right direction, making it easier to cover the polymer insulator 200 with the wire support part cover 100 even when the portion of the polymer insulator 200 covered by the wire support part cover 100 (the second connection part 220 and the fourth cap part 234) is large in the front-to-rear direction.

[0058] That is, the upper protruding portion 1c of the front side insulating sheet 1 and the upper protruding portion 2c of the rear side insulating sheet 2 correspond to a portion that can cover at least a part (the second connection portion 220 and the fourth cap portion 234) of the polymer insulator 200 that supports the electric wire 300. This portion is defined as a support member cover portion 100a.

[0059] Further, the right protruding portion 1a, the left protruding portion 1b, the lower protruding portion 1d, and the central portion 1e of the front side insulating sheet 1 and the right protruding portion 2a, the left protruding portion 2b, the lower protruding portion 2d, and the central portion 2e of the rear side insulating sheet 2 correspond to a portion that can cover at least the portion (supported portion 300a) of the electric wire 300 that is supported by the second connecting portion 220 of the polymer insulator 200. This portion is referred to as the electric wire cover portion 100b.

[0060] In addition, in the portion between the lower end of the front insulating sheet 1 and the lower end of the rear insulating sheet 2, through which the electric wire 300 passes during installation, the electric wire cover portion 100b of the electric wire support portion cover 100 is divided in the front-rear direction, and the divided portions are provided with the third hook-and-loop fastener 5 and the fourth hook-and-loop fastener 6 so as to be detachably connectable. This divided portion is referred to as the first divided portion 100c. Furthermore, when the third hook-and-loop fastener 5 and the fourth hook-and-loop fastener 6 are connected, the male surface of the hook-and-loop fastener, i.e., the surface on which the hook-shaped raised portions of the hook-and-loop fastener are arranged, faces outward (the side that does not face the polymer insulator 200 and the wire 300 covered by the wire support part cover 100, in this case downward).

[0061] In addition, in the portion between the left end of the first front side insulating sheet 11 and the right end of the second front side insulating sheet 12 of the front side insulating sheet 1, through which the second connecting portion 220 and the fourth shed portion 234 of the polymer insulator 200 pass during installation, the support member cover portion 100a and the wire cover portion 100b of the wire support portion cover 100 are divided into left and right portions, and the first hook-and-loop fastener 3 and the second hook-and-loop fastener 4 are provided so that the divided portions can be detachably connected. This divided portion is referred to as the second divided portion 100d. Furthermore, when the first hook-and-loop fastener 3 and the second hook-and-loop fastener 4 are connected, the male surface of the hook-and-loop fastener, i.e., the surface on which the hook-shaped raised portions of the hook-and-loop fastener are arranged, faces outward (the side that does not face the polymer insulator 200 and the wire 300 covered by the wire support part cover 100, in this case the front).

[0062] In addition, when the third hook-and-loop fastener 5 and the fourth hook-and-loop fastener 6 are connected, the wire cover portion 100b becomes tubular extending in the left-right direction as shown in FIG. 7, and the cross-sectional shape of such a tube (shape viewed from the left-right direction) becomes approximately triangular in shape with its width in the front-to-rear direction gradually increasing from the upper end connected to the support member cover portion 100a to the lower end as shown in FIG. 7.

[0063] [3 Explanation of effects] The wire support portion cover 100 in this embodiment is formed from an insulating sheet and includes a support member cover portion 100a (upper protruding portion 1c of the front side insulating sheet 1 and upper protruding portion 2c of the rear side insulating sheet 2) capable of covering the second connection portion 220 and the fourth shed portion 234 of the polymer insulator 200, and a wire cover portion 100b (right protruding portion 1a, left protruding portion 1b, lower protruding portion 1d, and central portion 1e of the front side insulating sheet 1, and right protruding portion 2a, left protruding portion 2b, lower protruding portion 2d, and central portion 2e of the rear side insulating sheet 2) formed from an insulating sheet and capable of covering at least the supported portion 300a of the wire 300.

[0064] As a result, as described above, by simply attaching the wire support part cover 100 so that the support member cover part 100a covers the second connection part 220 and the fourth cap part 234 of the polymer insulator 200 and the wire cover part 100b covers at least the supported part 300a of the electric wire 300, it is possible to cover all of the parts of the wire support part where the electric wire 300 is supported by the polymer insulator 200 that may be subject to electric shock (the parts of the wire 300 and the polymer insulator 200 that are located below the cap parts formed by the insulating material (the first cap part 231, the second cap part 232, the third cap part 233, and the fourth cap part 234)). This makes it possible to reduce the effort required for protective treatment to prevent electric shock to workers working around the wire support part where the electric wire 300 is supported by the polymer insulator 200.

[0065] Furthermore, since the support member cover portion 100a and the wire cover portion 100b are integrally formed, the risk of losing a part and becoming unusable can be reduced compared to, for example, a case in which these are composed of multiple separate parts.

[0066] Furthermore, since the wire support part cover 100 includes portions into which the insulating sheet is divided (first divided portion 100c and second divided portion 100d) and connection means for freely attaching and detaching these divided portions (third hook-and-loop fastener 5 and fourth hook-and-loop fastener 6 for freely attaching and detaching the first divided portion 100c, and first hook-and-loop fastener 3 and second hook-and-loop fastener 4 for freely attaching and detaching the second divided portion 100d), as described above, with these connection means disconnected, the second connection portion 220 and fourth cap portion 234 of the polymer insulator 200 and at least the supported portion 300a of the wire 300 can be covered with the wire support part cover 100, and then these connection means can be connected, making the installation work of the wire support part cover 100 even easier.

[0067] Furthermore, since the divided portions of the insulating sheet constituting the wire support part cover 100 include the first divided portion 100c (the portion between the lower end portion of the front side insulating sheet 1 and the lower end portion of the rear side insulating sheet 2) formed in the wire cover part 100b, it becomes even easier to cover the wires 300 with the wire support part cover 100.

[0068] Furthermore, since the divided portion of the insulating sheet constituting the wire support part cover 100 includes the second divided portion 100d (the portion between the left end portion of the first front side insulating sheet 11 and the right end portion of the second front side insulating sheet 12 of the front side insulating sheet 1) formed so as to continue from the wire cover portion 100b to the support member cover portion 100a, it becomes even easier to cover the second connection portion 220 and the fourth cap portion 234 of the polymer insulator 200 with the wire support part cover 100.

[0069] Furthermore, since the rear side insulating sheet 2 has a downward protrusion 2d and the lower fourth hook-and-loop fastener 62 of the fourth hook-and-loop fastener 6 is provided on the downward protrusion 2d, when the third hook-and-loop fastener 5 and the fourth hook-and-loop fastener 6 are connected, when the lower fourth hook-and-loop fastener 62 is connected to the third hook-and-loop fastener 5 at the left-and-right center as shown in Figure 8(b), the front-to-rear distance between the front side insulating sheet 1 and the rear side insulating sheet 2 at the left-and-right center can be made wider than when the upper fourth hook-and-loop fastener 61 is connected to the third hook-and-loop fastener 5 at the left-and-right center as shown in Figure 8(a). As a result, by using the upper fourth surface fastener 61 and the lower fourth surface fastener 62 appropriately, it becomes possible to accommodate polymer insulators 200 of various sizes.

[0070] Furthermore, since the hook-and-loop fastener is used as the means for detachably connecting the first divided portion 100c and the second divided portion 100d, large gaps are unlikely to occur at the connection portion, reducing the risk of electric shock caused by tools or other items used by workers entering through the gap. Furthermore, since the hook-and-loop fastener creates minute gaps at the connection portion, water can be drained through such gaps, making it difficult for water to accumulate inside the electric wire support portion cover 100 even when used outdoors.

[0071] Furthermore, since the means for enabling the first divided portion 100c and the second divided portion 100d to be freely connected and detached is a hook-and-loop fastener, the risk of the polymer insulator 200 and the wire 300 being damaged by the wire support portion cover 100 can be reduced compared to, for example, a case in which metal fittings or the like are used for connection.

[0072] Furthermore, when the first hook-and-loop fastener 3 and the second hook-and-loop fastener 4 are connected, the male surface of the hook-and-loop fastener, i.e., the second hook-and-loop fastener 4 which is the surface on which the hook-shaped nap is arranged, faces outward (the side that does not face the polymer insulator 200 and the electric wire 300 covered by the wire support part cover 100, in this case the front), and when the third hook-and-loop fastener 5 and the fourth hook-and-loop fastener 6 are connected, the male surface of the hook-and-loop fastener, i.e., the third hook-and-loop fastener 5 which is the surface on which the hook-shaped nap is arranged, faces outward (the side that does not face the polymer insulator 200 and the electric wire 300 covered by the wire support part cover 100, in this case the downward), thereby further reducing the risk of the wire support part cover 100 damaging the polymer insulator 200 and the electric wire 300.

[0073] In addition, when the third hook-and-loop fastener 5 and the fourth hook-and-loop fastener 6 are connected and the wire cover portion 100b is attached so as to cover the supported portion 300a of the electric wire 300, the wire cover portion 100b becomes tubular and extends horizontally along the electric wire 300, so that the wire cover portion 100b can cover a long portion of the electric wire 300 in the left-right direction. Furthermore, even if the electric wire 300 is raised or lowered on the left and right sides of the supported portion 300a, the wire cover portion 100b changes shape accordingly, making it easier to cover the electric wire 300.

[0074] Furthermore, the upper protrusion 1c of the front side insulating sheet 1 and the upper protrusion 2c of the rear side insulating sheet 2, which form the support member cover portion 100a, are formed to protrude from the right protrusion 1a, the left protrusion 1b, the lower protrusion 1d, and the central portion 1e of the front side insulating sheet 1, which forms the wire cover portion 100b, and the right protrusion 2a, the left protrusion 2b, the lower protrusion 2d, and the central portion 2e of the rear side insulating sheet 2, which form the wire cover portion 100b. This makes it possible to efficiently cover the second connection portion 220 and the fourth cap portion 234 of the polymer insulator 200 and at least the supported portion 300a of the wire 300 while reducing the area of ​​the insulating sheets.

[0075] In addition, the cross-sectional shape (shape viewed from the left and right) of the cylindrical portion of the wire cover part 100b is a generally triangular shape whose width in the front-to-rear direction gradually increases from the upper end connected to the support member cover part 100a to the lower end, making it easier to cover the bottom of the wires 300 without any gaps, and making it more difficult for items such as tools used by workers to enter the wire support part cover 100 from the bottom of the wire cover part 100b.

[0076] Furthermore, since the insulating layer of the insulating sheet constituting the wire support part cover 100 is formed from EVAC (ethylene vinyl acetate copolymer), EVAC is less likely to affect the polymer forming the cap portion of the polymer insulator 200, making it easier to use the wire support part cover 100 in a wire support part in which the wire 300 is supported by the polymer insulator 200.

[0077] In addition, since the support member cover portion 100a and the wire cover portion 100b are integrally formed by the front side insulating sheet 1 and the rear side insulating sheet 2 arranged so as to overlap each other, the wire support portion cover 100 can be made flat when not in use, making it easy to store and carry.

[0078] In addition, the portion of the front-side insulating sheet 1 extending from the upper end of the right protrusion 1a to the right end of the upper protrusion 1c and the portion of the rear-side insulating sheet 2 extending from the upper end of the right protrusion 2a to the right end of the upper protrusion 2c are welded together, and also the portion of the front-side insulating sheet 1 extending from the upper end of the left protrusion 1b to the left end of the upper protrusion 1c and the portion of the rear-side insulating sheet 2 extending from the upper end of the left protrusion 2b to the left end of the upper protrusion 2c are welded together, making it difficult for items such as tools used by workers to enter the wire support part cover 100 through these welded portions (welded portion W).

[0079] In addition, by applying R processing to each corner of the insulating sheet constituting the electric wire support part cover 100 to form curved parts R1 to R9, the risk of the polymer insulator 200 and the electric wire 300 being damaged by the corners of the insulating sheet can be reduced.

[0080] [4 Variations] Below, a modification of the above embodiment will be described.

[0081] [(1) Modification 1: Change in the range covered by the support member cover] In the description of the above configuration, the support member cover portion 100a (the upper protruding portion 1c of the front side insulating sheet 1 and the upper protruding portion 2c of the rear side insulating sheet 2) covers only the second connection portion 220 and the fourth cap portion 234 of the polymer insulator 200, but the area covered by the support member cover portion 100a may be further expanded.

[0082] For example, it may cover the area from the second connection portion 220 to the third shed portion 233, it may cover the area from the second connection portion 220 to the second shed portion 232, it may cover the area from the second connection portion 220 to the first shed portion 231, or it may cover the entire polymer insulator 200.

[0083] However, as described above, covering only the second connection portion 220 and the fourth shed portion 234 of the polymer insulator 200 is preferable from the viewpoint of providing sufficient protective treatment while adequately covering the portions of the polymer insulator 200 that may be subject to electric shock and reducing costs by making the support member cover portion 100a smaller and limiting the amount of insulating sheet used.

[0084] [(2) Modification 2: Change of support member] In the explanation of the above configuration, the support member for supporting the electric wire is the polymer insulator 200. However, the support member is not limited to the polymer insulator 200, and any support member that can be covered with the electric wire support part cover 100 can also be used for protective treatment of the electric wire support part in which the electric wire is supported by another type of support member.

[0085] For example, it may be used for protective treatment of an electric wire support part in which an electric wire is supported by a porcelain insulator having a cap portion formed of porcelain, or it may be used for protective treatment of an electric wire support part in which an electric wire is supported by a support member other than an insulator.

[0086] However, since polymer insulators are easily affected and damaged by the cap portion formed by the polymer or the material of the wire support part cover, the materials that can be used for protective treatment are limited. However, the wire support part cover 100 uses EVAC, which has a low effect on polymers, as the material for the insulating layer of the insulating sheet. In addition, the use of hook-and-loop fasteners, adjustment of the direction in which the male surface faces, and R processing on each corner make it less likely to scratch the polymer, making it the most suitable for use with the polymer insulator 200.

[0087] When the support member is an insulator, there is no problem if it covers at least the cap portion located closest to the connection portion to which the electric wire is connected (the fourth cap portion 234 in the case of the above-mentioned polymer insulator 200), because this covers all of the parts of the insulator that may cause electric shock when touched (such as the metal parts below the fourth cap portion 234 in the case of the above-mentioned polymer insulator 200); however, when the support member is something other than an insulator, the size of the support member cover portion 100a can be determined so as to cover all of the parts that may cause electric shock, depending on the structure of such support member.

[0088] [(3) Modification 3: Change in connection means] In the description of the above configuration, the case has been described in which the wire support part cover 100 is equipped with the first hook-and-loop fastener 3, the second hook-and-loop fastener 4, the third hook-and-loop fastener 5 and the fourth hook-and-loop fastener 6. However, the means for enabling the first divided part 100c and the second divided part 100d to be detachably connected need only be something that enables the wire support part cover 100 to open these divided parts when covering the polymer insulator 200 and the wire 300 and close them after covering, and is not limited to hook-and-loop fasteners.

[0089] However, as described above, in order to reduce the risk of electric shock caused by tools and other items used by workers entering through the gaps, to reduce the risk of the wire support cover 100 damaging the polymer insulator 200 and the wire 300, and to reduce the risk of water accumulating inside the wire support cover 100 when used outdoors, it is most preferable to use hook-and-loop fasteners. [Explanation of symbols]

[0090] 100 Wire support cover 1 Front insulation sheet (first insulation sheet) 11 First front insulation sheet 12 Second front insulation sheet 1a Right protrusion (wire cover) 1b Left protrusion (wire cover) 1c Upper protrusion (support member cover) 1d Lower protrusion (wire cover) 1e Center section (wire cover section) 2 Rear insulation sheet (second insulation sheet) 2a Right protrusion (wire cover part) 2b Left protrusion (wire cover) 2c Upper protrusion (support member cover) 2d Lower protrusion (wire cover, protrusion) 2e Center section (wire cover section) 3. First hook-and-loop fastener (connection means, second connection means) 4. Second hook-and-loop fastener (connection means, second connection means) 5. Third hook-and-loop fastener (connection means, first connection means) 51 Right 3rd hook-and-loop fastener 52 Center 3rd hook-and-loop fastener 53 Left third hook-and-loop fastener 6 Fourth hook-and-loop fastener (connection means, first connection means) 61 Top 4th hook-and-loop fastener 62 Lower 4th hook-and-loop fastener 100a Support member cover part 100b Wire cover part 100c 1st division part (division part) 100d 2nd division part (division part) S Connection W Welded part H opening R1, R2, R3, R4, R5, R6, R7, R8, R9 curved section 200 Polymer insulator (supporting member) 210 First connection part 220 Second connection part (connection part) 231 First Kasabe 232 Second Kasabe 233 3rd Kasabe 234 4th Kasabe (Kasabe) 300 electric wire 300a Supported part

Claims

1. A support member cover portion formed of an insulating sheet and capable of covering at least a portion of a support member that supports an electric wire; a wire cover portion formed of an insulating sheet and capable of covering at least a portion of the wire supported by the support member; A wire support cover comprising:

2. a division portion in which the insulating sheet is divided; A connecting means for detachably connecting the divided parts; The wire support cover according to claim 1 , further comprising:

3. The divided portion includes a first divided portion formed in the wire cover portion, 3. The electric wire support cover according to claim 2, wherein the connecting means includes a first connecting means for making the first divided portion detachable.

4. 4. The electric wire support cover according to claim 3, further comprising a protruding portion formed to protrude from at least one of the first divided portions, and at least a portion of the first connection means is provided on the protruding portion.

5. the divided portion includes a second divided portion formed so as to be continuous from the electric wire cover portion to the support member cover portion, 3. The electric wire support cover according to claim 2, wherein the connecting means includes second connecting means for making the second divided portion detachable.

6. 3. The wire support cover according to claim 2, wherein the connecting means is a hook-and-loop fastener.

7. 7. The electric wire support cover according to claim 6, wherein the hook-and-loop fastener is provided so that the surface on which the hook-shaped raised portions are provided faces outward.

8. The electric wire support portion cover according to claim 3, characterized in that the electric wire cover portion is formed into a cylindrical shape extending along the electric wire when attached so as to cover the portion of the electric wire supported by the support member.

9. The wire support portion cover according to claim 8 , wherein the support member cover portion is formed so as to protrude from the wire cover portion.

10. The wire support portion cover according to claim 9, characterized in that, when the wire cover portion is attached so as to cover the portion of the wire supported by the support member, the wire cover portion is formed into a cylindrical shape having a cross-sectional shape whose width gradually increases from one end connected to the support member cover portion to the other end.

11. The wire support cover according to any one of claims 1 to 10, wherein the insulating sheet comprises an EVAC layer.

12. 11. The electric wire support cover according to claim 1, wherein the support member is an insulator.

13. The wire support portion cover according to claim 12, characterized in that the support member cover portion is formed so as to be able to cover at least the connection portion of the insulator to which the electric wire is connected and the cap portion located at a position closest to the connection portion.

14. The wire support portion cover according to any one of claims 1 to 10, characterized in that the support member cover portion and the wire cover portion are integrally formed by a first insulating sheet and a second insulating sheet arranged in a double overlapping manner.

15. The electric wire support cover according to claim 14, wherein the first insulating sheet and the second insulating sheet are welded to each other at least at a part of their ends.

16. The electric wire support cover according to any one of claims 1 to 10, wherein at least a part of a corner of the insulating sheet is rounded.

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