Indirect hot wire tool support

Abstract

To provide an indirect hot wire tool support with which a physical burden on a worker performing an indirect hot wire work using an indirect hot wire tool, especially a burden on arms of the worker, can be greatly lessened.SOLUTION: An indirect hot wire tool support 1 includes a body belt 2 that is put across the body of a worker, a holding structure 3 that houses and holds an axis end 52 side of an indirect hot wire tool 50, and a coupling tool 4 that couples the holding structure 3 to the body belt 2 in an attachable / detachable manner. The holding structure 3 includes a cylindrical body 5 into which the axis end 52 side of the indirect hot wire tool 50 is inserted, a reception member 6 that receives the axis end 52 led from a vertically lower side end of the cylindrical body 5, and a position change structure 7 that connects the cylindrical body 5 and the reception member 6 and changes the distance between the cylindrical body 5 and the reception member 6.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an indirect live-line tool support for supporting an indirect live-line tool. [Background technology]

[0002] Conventionally, when carrying out distribution work on electric wires installed between utility poles, the work is carried out while electricity is still flowing through the wires, that is, in an uninterrupted state. There are two types of live-line work: a direct live-line method in which a worker wearing insulating protective gear such as insulating clothing and insulating gloves works by directly touching the live electric wires, and an indirect live-line method in which a worker uses an indirect live-line tool to work without directly touching the live electric wires.

[0003] In addition, the former direct live-line method requires workers to wear large insulating protective gear to prevent electric shock, etc., which results in lower work efficiency than the latter indirect live-line method, and since the worker directly touches the live electric wire, there is a risk of accidental electric shock. For this reason, in recent years, the latter indirect live-line method using indirect live-line tools has become mainstream from the perspective of improving work efficiency and the working environment.

[0004] Furthermore, indirect live-line construction is usually performed by two workers, and not only are there cases where one worker operates one indirect live-line tool with both hands, but there are also cases where one worker operates two indirect live-line tools with one hand each, making the work extremely physically demanding for the workers. For this reason, various types of indirect live-line tool supports have been invented and patent applications have been filed for the purpose of reducing the burden on workers during indirect live-line work. Furthermore, the following Patent Document 1 is known as a prior application that is considered to be particularly relevant to the present invention.

[0005] Patent Document 1 discloses an invention entitled "Hot Stick Support" that relates to a hot stick support used for remote operation in indirect live-line construction. The hot stick support disclosed in Patent Document 1 is a hot stick support that supports a hot stick during indirect live-line work on overhead electric cables, and comprises a cylindrical holder that can accommodate the axial end side of the hot stick and has multiple slits extending in the longitudinal direction, a shaft end bearing portion that is slidably arranged within the holder and receives the load of the axial end of the hot stick accommodated therein, a number of bolts that pass through the slits from the outside and are screwed into the shaft end bearing portion, a knob that is attached to one of the bolts and can be tightened to clamp the holder between the bolt and the shaft end bearing portion, and a mounting portion that is formed integrally with the holder and is worn on a part of the worker's body. According to the invention disclosed in Patent Document 1 as described above, the axial end position of the hot stick in the axial direction of the holder can be freely and easily changed within the holder. In other words, when a hot stick is supported by the hot stick support disclosed in Patent Document 1, the position of the tip (upper end) of the hot stick can be freely changed within the length of the slit formed in the holder. Furthermore, according to the invention disclosed in Patent Document 1, it is also possible to change the axial direction of the hot stick relative to the extension direction of the belt worn by the worker. Therefore, according to the invention disclosed in Patent Document 1, when a worker performs work using a hot stick, the position of the tip (upper end) of the hot stick and the axial direction of the hot stick relative to the extension direction of the belt worn by the worker can be changed as desired and maintained in that position. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2018-82538 A Summary of the Invention [Problem to be solved by the invention]

[0007] In the invention disclosed in the prior Patent Document 1, the range in which the position of the tip (upper end) of the hot stick can be changed is limited to the axial length of the holder, and more specifically, the length of the slit formed in the holder. Moreover, due to its structure, the axial end of the hot stick cannot be moved further vertically downward from the bottom surface position of the holder. That is, "moving the axial end of the hot stick further vertically downward from the bottom surface position of the holder" means operating so as to pull back the axial end of the hot stick to the back side of the operator. When this operation cannot be performed, the operator had to move backward while holding the hot stick. However, since the indirect live wire work using a hot stick is usually performed in a narrow bucket installed on an aerial work vehicle, the range in which the operator can move backward is extremely narrow, and in fact, there is a situation where the operator can hardly move backward. For this reason, when using the invention disclosed in Patent Document 1, there is a problem that it is difficult to increase (widen) the movable range of the tip (upper end) of the hot stick.

[0008] The present invention has been made in view of such conventional circumstances, and its object is to temporarily fix the indirect live wire tool to the operator's body while increasing the movable range of the tip (upper end) of the indirect live wire tool (such as a hot stick) even in a situation where an operator using the indirect live wire tool cannot freely move backward in the bucket of an aerial work vehicle, and to provide an indirect live wire tool support.

Means for Solving the Problems

[0009] The indirect live-line tool support, which is a first invention for solving the above problems, comprises a waist belt worn diagonally across the worker's body, a holding structure that accommodates and holds the shank end side of the indirect live-line tool, and a connector that detachably attaches the holding structure to the waist belt, and is characterized in that the holding structure comprises a cylindrical body through which the shank end side of the indirect live-line tool is inserted, a receiving member that receives the shank end extending from the vertical lower end of the cylindrical body, and a position change structure that connects the cylindrical body and the receiving member and changes the distance between the cylindrical body and the receiving member. In the first invention having the above configuration, the holding structure has the function of receiving and holding the shaft end side of the indirect live-line tool. The waist belt is worn diagonally across the torso of the worker's body, and has the function of holding the holding structure receiving the shaft end side of the indirect live-line tool near the worker's side. The connector has the function of detachably connecting the holding structure to the waist belt. Furthermore, since the holding structure is composed of the cylinder, the receiving member, and the position change structure, the distance from the vertical lower end of the cylinder to the receiving member can be changed as desired, and the length of the shaft end side of the indirect live-line tool that can be accommodated in the holding structure can be changed as desired. As a result, according to the first aspect of the present invention, the shaft end position of the indirect live-line tool can be moved further rearward beyond the back of the operator.

[0010] The second invention is the above-mentioned first invention, characterized in that the position change structure includes a length adjustment member, a first belt having one end fixed to the circumferential surface of a cylindrical body and the other end engaged with the length adjustment member, and having a movably provided receiving member between the one end and an installation position of the length adjustment member, and a second belt having one end fixed to the circumferential surface of the cylindrical body on the side opposite to the fixing position of the one end of the first belt, and the other end fixed to the length adjustment member. In the second invention having the above configuration, the first belt constituting the position change structure has the function of connecting the cylindrical body and the length adjustment member and holding the receiving member between them, and the second belt has the function of connecting the cylindrical body and the length adjustment member. As a result, a loop is formed by the cylinder, the first belt, and the second belt, and the receiving member and the length adjustment member are provided on this loop. Furthermore, by providing a length adjustment member, the circumference of the loop can be changed to a desired length. In other words, by changing the engagement position of the length adjustment member on the other end side of the first belt, i.e., by changing the installation position of the length adjustment member arranged on the first belt, the distance (closer or farther away) from the cylindrical body to the receiving member can be changed as desired. As a result, according to the second aspect of the present invention, the structure for changing the length of the shaft end side of the indirect live-line tool that can be housed in the holding structure as desired can be simplified.

[0011] The third invention is the first or second invention described above, characterized in that the connector has a rotating part that can change the angle between the axis of the indirect live-line tool and the extension direction of the waist belt. In the third invention having the above configuration, by providing the rotating part, it is possible to easily change the angle θ that the axis of the indirect live-line tool makes with respect to the extending direction of the waist belt.

[0012] The fourth invention is the first or second invention described above, characterized in that it is provided with an auxiliary connecting structure that is arranged on the waist belt vertically above the installation position of the holding structure, connects the waist belt and the indirect live-line tool, and has an adjustable length. In the fourth invention having the above configuration, the auxiliary connection structure is provided, so that the angle θ that the axis of the indirect live-line tool makes with respect to the extending direction of the waist belt can be maintained at a desired angle. Effect of the Invention

[0013] According to the first aspect of the present invention, the shaft end of the indirect live-line tool can be moved so as to pass over the back of the operator and be pulled back further rearward. In addition, the range of the length by which the shaft end of the indirect live-line tool can be pulled back can be set as desired. More specifically, in the case of the first invention, there is no restriction on the movable range of the tip side of the indirect live-line tool, unlike the case of using the holder disclosed in the above-mentioned Patent Document 1. As a result, even if a worker using the indirect live-line tool is unable to step back freely inside the bucket of the aerial work vehicle, the range of motion of the tip (upper end) of the indirect live-line tool, i.e., the range of motion in the axial direction of the rod body of the indirect live-line tool, can be increased. Therefore, according to the first aspect of the present invention, it is possible to improve the operability of the indirect live-line tool when performing indirect live-line work while holding the indirect live-line tool.

[0014] According to the second aspect of the present invention, the position change structure is made up of the first and second belts and the length adjustment structure, thereby making the structure extremely simple. Therefore, the weight of the holding structure in the second aspect of the invention can be reduced. As a result, according to the second aspect of the invention, the weight of the indirect live-line tool support itself can be reduced, so that the operability of the indirect live-line tool can be further improved.

[0015] According to the third aspect of the present invention, the angle θ that the axis of the indirect live-line tool makes with respect to the direction in which the waist belt extends can be easily changed at the connection portion between the waist belt and the holding structure. Therefore, according to the third invention, it is possible to increase both the axial moving range of the indirect live-line tool and the moving range when the axis of the indirect live-line tool is rotated around the connection part between the waist belt and the holding structure as a fulcrum. Therefore, according to the third aspect of the present invention, it is possible to further improve the operability of the indirect live-line tool when the indirect live-line tool is used in a state in which it is temporarily fixed to the body of a worker.

[0016] According to the fourth invention, when the shaft of the indirect live-line tool is rotated as desired around the connection part between the waist belt and the holding structure as a fulcrum, the indirect live-line tool can be temporarily fixed in that position if necessary. Therefore, the fourth aspect of the present invention also makes it possible to improve the operability of the indirect live-line tool. [Brief description of the drawings]

[0017] [Figure 1] FIG. 2 is an image diagram of an indirect live-line tool support according to the present embodiment. [Diagram 2]FIG. 2 is a conceptual diagram of a usage state of the indirect live-line tool support according to the present embodiment. [Diagram 3] 4 is a cross-sectional view of the waist belt and a length adjustment member in the thickness direction of the waist belt before the circumferential length of the waist belt is adjusted. FIG. [Figure 4] 11 is a cross-sectional view in the thickness direction of the waist belt during an operation for lengthening the circumference of the waist belt. FIG. [Diagram 5] 11 is a cross-sectional view in the thickness direction of the waist belt after the circumferential length of the waist belt has been increased. FIG. [Figure 6] FIG. 11 is an axial cross-sectional view of the indirect live-line tool with the length of the holding structure shortened. [Figure 7] FIG. 11 is an axial cross-sectional view of the indirect live-line tool with the length of the holding structure increased; [Figure 8] 11 is an axial cross-sectional view of an indirect live-line tool having a holding structure according to a modified example of the indirect live-line tool support according to the embodiment. FIG. [Figure 9] FIG. 4 is a partially enlarged view of the periphery of a connector in the indirect live-line tool support according to the embodiment. [Figure 10] 4 is a partial enlarged view of the periphery of an auxiliary connection structure in the indirect live-line tool support according to the embodiment. FIG. [Figure 11A] FIG. 13 is an image diagram showing the other end side of the first belt before being bundled. [Figure 11B] FIG. 13 is an image diagram of the other end side of the first belt bundled together. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] An indirect live-line tool support according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 11B.

[0019] [1; Basic form of the present invention] An indirect live-line tool support according to an embodiment of the present invention (hereinafter simply referred to as "the present embodiment") and its usage state will be described with reference to Figs. 1 and 2. Fig. 1 is a conceptual diagram of an indirect live-line tool support according to the present embodiment, and Fig. 2 is a conceptual diagram of the indirect live-line tool support in use. The indirect live-line tool support 1 of this embodiment, as shown in Figures 1 and 2, for example, comprises a waist belt 2 worn diagonally across the body of an operator 53, a holding structure 3 that accommodates and holds the axial end 52 side of a rod body 51 of an indirect live-line tool 50 (see Figure 2), and a connecting device 4 that detachably attaches the holding structure 3 to the waist belt 2.

[0020] In addition, the holding structure 3 in the indirect live-line tool support 1 in this embodiment includes a cylindrical body 5 through which the axial end 52 of the indirect live-line tool 50 (see Figure 2) is inserted, a hollow container-like receiving member 6 having a hollow portion capable of accommodating the axial end 52 (see Figure 2) that receives and supports the axial end 52 (see Figure 2) leading out from the vertical lower end (lead-out port 5b) of the cylindrical body 5, and a position change structure 7 that connects the cylindrical body 5 and the receiving member 6 and can change the distance from the vertical lower end (lead-out port 5b) of the cylindrical body 5 to the receiving member 6 as desired.

[0021] (How to adjust the length of the waist belt) The waist belt 2 in the indirect live-line tool support 1 according to this embodiment is provided with a length adjustment member 81, so that the circumference thereof can be changed in accordance with the physique of the worker 53 wearing the waist belt 2. Here, the structure of the length adjustment member 81 and the procedure for changing the circumferential length of the waist belt 2 using this length adjustment member 81 will be described with reference to Figs. Figure 3 is a cross-sectional view in the thickness direction of the waist belt of the waist belt and the length adjustment member before adjusting the circumference of the waist belt, Figure 4 is a cross-sectional view in the same direction during an operation to lengthen the circumference of the waist belt, and Figure 5 is a cross-sectional view in the same direction after the circumference of the waist belt has been lengthened. As the waist belt 2 shown in Figs. 3 to 5, for example, a band made of woven filamentary synthetic fibers can be used. Moreover, the length adjustment member 81 shown in Figures 3 to 5 has two engaging or fixing rods (engaging portion 8b and fixing portion 8c) suspended parallel to each other on the inside (within the ring) of the main body portion 8a, which is a ring made of, for example, synthetic resin or metal.

[0022] Furthermore, the other end 2b side of the waist belt 2 is wound around the peripheral side surface of the locking portion 8b of the length adjustment member 81 once, and then led out from the back surface 16b side of the main body portion 8a. In addition, one end 2a of the waist belt 2 is wrapped around the peripheral surface of the fixing portion 8c of the length adjustment member 81 once, and then is led out on the back surface 16b side of the main body portion 8a, on the opposite side to the direction in which the other end 2b of the waist belt 2 is led out, and is sewn and fixed to the waist belt 2 arranged on the lower layer at the position led out from the main body portion 8a. In other words, the other end 2b of the waist belt 2, which is engaged with the engaging portion 8b of the length adjustment member 81, is engaged so as to be slidable along the peripheral surface of the engaging portion 8b, whereas the one end 2a of the waist belt 2 is fixed to the fixed portion 8c and is immovable. Further, the waist belt 2, which is fastened to the fastening portion 8b of the length adjustment member 81, is pressed against the back surface 16b side by the main body portion 8a. Therefore, in the state shown in FIG.

[0023] To increase the circumferential length of the annular waist belt 2 equipped with the length adjustment member 81 shown in FIG. 3, as shown in FIG. 4, the circumferential edge of the main body portion 8a on the fixing portion 8c side of the length adjustment member 81 is pressed against one end portion 2a of the waist belt 2 while tilting the circumferential edge of the main body portion 8a on the locking portion 8b side so as to lift it off the waist belt 2, i.e., toward the surface 16a side of the main body portion 8a (see the direction indicated by symbol P in FIG. 4). By this operation, the waist belt 2 (the other end 2b side) that is engaged with the engaging portion 8b of the length adjustment member 81 is released from the state where it is pressed down by the main body portion 8a, and becomes easier to slide on the peripheral surface of the engaging portion 8b (see Figure 4). As a result, the other end 2b of the waist belt 2, which is in the released state, is automatically pulled up, i.e., the other end 2b of the waist belt 2 moves toward the fixed portion 8c of the length adjustment member 81 via the engaging portion 8b of the length adjustment member 81 (sliding in the direction indicated by symbol Q in Figure 4), thereby lengthening the circumference of the waist belt 2 (see Figure 5).

[0024] On the other hand, to shorten the circumference of the annular waist belt 2 equipped with the length adjustment member 81, for example, in the state shown in Figure 3, the other end 2b side of the waist belt 2 leading out from the engaging portion 8b side of the main body portion 8a may be pulled strongly in the direction away from the length adjustment member 81 (the direction indicated by the symbol R in Figure 3). 5, this action causes the loop-shaped waist belt 2 to be pulled into the retaining portion 8b of the length adjustment member 81 (moving in the direction indicated by symbol R in FIG. 5), slides along the peripheral side surface of the retaining portion 8b, and then is sent out in a direction away from the main body portion 8a of the length adjustment member 81 (towards the other end portion 2b), ultimately shortening the peripheral length of the waist belt 2.

[0025] (Regarding the holding structure) A mechanism for changing the length of the shaft end 52 side of the rod body 51 of the indirect live-line tool 50 housed and held in the holding structure 3 will be described with reference to Figs. FIG. 6 is an axial cross-sectional view of the indirect live-line tool with the length of the holding structure shortened, and FIG. 7 is an axial cross-sectional view of the indirect live-line tool with the length of the holding structure lengthened. The length adjustment member 82 shown in FIGS. 6 and 7 has the same structure as the length adjustment member 81 shown in FIGS. The holding structure 3 of the indirect live-line tool support 1 in this embodiment includes a cylindrical body 5 made of, for example, synthetic resin, and a dish-shaped (more preferably deep dish-shaped) receiving member 6 made of, for example, synthetic resin, and a position change structure 7 that connects and integrates these together and allows the distance between the cylindrical body 5 and the receiving member 6 to be changed as desired.

[0026] Further, the position change structure 7 in the holding structure 3 is constituted by a length adjustment member 82, a first belt 9 and a second belt 10, as shown in, for example, FIGS. More specifically, as shown in Figures 6 and 7, the length adjustment member 82 has a main body portion 8a and a locking portion 8b that are arranged parallel to each other within a ring of the annular main body portion 8a (same structure as the previous length adjustment member 81). Moreover, one end 9a of the first belt 9 is fixed onto the circumferential surface of the cylindrical body 5, and the other end 9b side is engaged with the engaging portion 8b of the length adjustment member 82. Furthermore, between the one end 9a of the first belt 9 and the length adjustment member 82, a receiving member 6 is movably provided. More specifically, slits 6b, 6b are formed in the bottom 6a of the receiving member 6 near its periphery, penetrating the thickness direction. As shown in Fig. 6, the other end 9b side of the first belt 9, one end 9a of which is fixed to the circumferential side of the cylinder 5, enters one slit 6b from the inside of the receiving member 6, is led out to the outer bottom surface of the receiving member 6, and is arranged so as to cover the outer bottom surface, and then enters again from the other slit 6b into the inner space of the receiving member 6 and is led out of the receiving member 6 through this inner space. In this way, the receiving member 6 is attached so as to be slidable on the first belt 9. Furthermore, the other end 9b side of the first belt 9 led out from the other slit 6b of the receiving member 6 is slidably fastened to a fastening portion 8b of the length adjusting member . In addition, the other end 10b of the second belt 10 is fixed to the fixed portion 8c of the length adjustment member 82, and one end 10a of the second belt 10 is fixed to the side of the cylindrical body 5 (the side opposite to the side to which one end 9a of the first belt 9 is fixed).

[0027] The holding structure 3 having the position change structure 7 as described above has a cylindrical body 5, a first belt 9 having a receiving member 6, a length adjustment member 82, and a second belt 10 which are interconnected to form a loop, as shown in FIG. Furthermore, by tilting the peripheral edge of the length adjustment member 82 on the side of the engaging portion 8b toward the surface 16a of the main body portion 8a in the state shown in Figure 6, that is, by operating it in the same manner as the length adjustment member 81 shown in Figure 4 above, the other end 9b side of the first belt 9 can be moved toward the receiving member 6 side (in the direction indicated by the symbol T in Figure 6) via the engaging portion 8b of the length adjustment member 82. As a result, the circumferential length of the loop formed by the cylindrical body 5, the first belt 9 having the receiving member 6, the length adjustment member 82, and the second belt 10 linked together becomes longer. As a result, the axial length S of the cylindrical body 5 of the holding structure 3 shown in FIG. 1 That is, the distance from the insertion opening 5a of the cylindrical body 5 to the bottom of the receiving member 6 (S 1 ) in the same direction as shown in Figure 7 2 It can be changed (lengthened) to. That is, the length S of the shaft end 52 side of the rod body 51 of the indirect live-line tool 50 that can be accommodated and held in the holding structure 3 is 1 (See Figure 6) with a longer length S 2 (See Figure 7).

[0028] As shown in FIG. 2, when the attachment position of the support structure 3 on the waist belt 2 worn by the worker 53 is the same (does not change), the length S of the support structure 3 is 1 is length S 2 By changing to (S 2 -S 1 ) so that the position of the shaft end 52 of the rod body 51 of the indirect live-line tool 50 can be retreated toward the rear side of the operator 53. This means that the tip position of the indirect hot-line tool 50 (not shown) is set to (S 2 -S 1 This means that the indirect live-line tool 50 can be held on the torso of the operator 53 in a state where the indirect live-line tool 50 is moved back toward the rear side of the operator 53 by a distance of 1.0 mm (the distance from the torso of the operator 53). Moreover, in the indirect live-line tool support 1 according to this embodiment, the longer the first belt 9 is, the greater the amount of retraction of the shaft end 52 side of the rod body 51 of the indirect live-line tool 50 can be made. In other words, when working with the indirect live-line tool 50 temporarily fixed to the torso of the worker 53 using the indirect live-line tool support 1 of this embodiment, the movable range of the tip side of the indirect live-line tool support 1 (= the amount of retreat of the shaft end 52 of the indirect live-line tool 50) can be increased. Therefore, according to the indirect live-line tool support 1 of this embodiment, even in a situation where a worker 53 using the indirect live-line tool 50 cannot freely step back inside the bucket of the aerial work vehicle, the range of motion of the tip (upper end) of the indirect live-line tool 50 is increased, and the indirect live-line tool 50 can be temporarily fixed to the body of the worker 53 while still allowing work to be performed using the indirect live-line tool 50.

[0029] In addition, the length (S 2 ), the other end 9b side of the first belt 9 leading out from the engaging portion 8b side of the length adjustment member 82 shown in FIG. 7 may be pulled strongly in the direction away from the length adjustment member 82 (the direction indicated by the symbol U in FIG. 7). In this case, the first belt 9 on the side where the receiving member 6 is engaged is sent out to the other end 9b side of the first belt 9 via the engaging portion 8b of the length adjustment member 82, so that the axial length (S 2 ) can be shortened.

[0030] FIG. 8 is an axial cross-sectional view of an indirect live-line tool having a holding structure according to a modified example of the indirect live-line tool support according to the present embodiment. 6 and 7, an example is described in which the first belt 9 that has passed through the slit 6b is placed on the outer bottom surface of the receiving member 6, but the same action and effect can be obtained when the first belt 9 that has passed through the slit 6b is placed on the inner bottom surface of the receiving member 6. 8, the other end 9b of the first belt 9, one end 9a of which is fixed to the circumferential surface of the cylinder 5, may be inserted into one slit 6b from the outer bottom surface of the receiving member 6, led out to the inner bottom surface (inner space) of the receiving member 6, and then disposed so as to cover the inner bottom surface, and then led out again from the other slit 6b to the outer bottom surface of the receiving member 6, and then engaged with the engaging portion 8b of the length adjustment member 82 via the outer bottom surface of the receiving member 6 and the side surface. In this case as well, the receiving member 6 is attached so as to be slidable on the first belt 9. The length (S 3 ) can be changed as desired.

[0031] In addition, in the holding structure 3 of the indirect live-line tool support 1 of this embodiment, an example is given in which the first belt 9 is inserted through a pair of slits 6b, 6b formed in the bottom 6a of the receiving member 6, making the receiving member 6 slidable on the first belt 9, but the same effect can be achieved by providing one or more belt loops (not shown) on the outer surface of the receiving member 6 and inserting the first belt 9 through the belt loops.

[0032] (About connectors) The connector 4 in the indirect live-line tool support 1 according to this embodiment will be described with reference to FIG. FIG. 9 is a partial enlarged view of the periphery of the connector in the indirect live-line tool support according to this embodiment. As shown in Figure 9, the connector 4 includes a snap hook 12 that is removably hooked onto a desired number (one or more) of D-rings 14 provided on the surface of the waist belt 2, for example, and a rotating part 13 provided at the base of the snap hook 12. In addition, the rotating part 13 is equipped with a rotating shaft 13a that enables the angle θ (see Figure 9) between the axial direction of the cylindrical body 5 of the holding structure 3 (= the axial direction of the rod body 51 of the indirect live-line tool 50) and the direction in which the waist belt 2 extends to be changed as desired, and a bearing 13b that receives this rotating shaft 13a. Furthermore, the side of the snap hook 12 that is not hooked onto the D-ring 14 is connected to the holding structure 3 via, for example, a connecting belt 11 or the like.

[0033] The indirect live-line tool support 1 of this embodiment is equipped with a connecting device 4 as shown in Figure 9, so that when a holding structure 3 that houses and holds the axial end 52 side of the rod body 51 of the indirect live-line tool 50 is connected to the waist belt 2 via the connecting device 4, the angle θ between the axial direction of the rod body 51 of the indirect live-line tool 50 and the extension direction of the waist belt 2 can be easily changed. As a result, when the indirect live-line tool 50 is temporarily fixed to the body of the worker 53 by the indirect live-line tool support 1 according to this embodiment, the operability of the indirect live-line tool 50 can be improved.

[0034] In FIG. 2, an example is described in which, for example, three D-rings 14 are provided at desired intervals near the sides of the waist belt 2 when the worker 53 puts on the waist belt 2. In this case, by selecting a desired one of the three D-rings 14 as the hooking position of the connector 4, the worker 53 can change the connecting position of the retaining structure 3 on the waist belt 2 as desired. As a result, when the indirect live-line tool 50 is temporarily fixed to the body of an operator 53 using the indirect live-line tool support 1 of this embodiment, the range of movement of the indirect live-line tool 50 in the axial direction of the rod body 51 of the indirect live-line tool 50 can be made larger. Therefore, according to the indirect live-line tool support 1 of this embodiment, the operability of the indirect live-line tool 50 can be improved while significantly reducing the physical burden on the worker 53 when using the indirect live-line tool 50.

[0035] In addition, Figure 1 shows an example in which multiple D-rings 14 are directly attached to the surface of the waist belt 2, but it is also possible to prepare a separate "D-ring attachment belt" (not shown), provide the required number (multiple) of D-rings 14 on this "D-ring attachment belt," and attach this "D-ring attachment belt" to the surface of the waist belt 2 in a detachable manner. In this case, when there is no need to provide multiple D-rings 14 on the waist belt 2 (for example, when there is a risk of erroneous operation of the indirect live-line tool 50), the separate "D-ring attachment belt" can be removed from the waist belt 2, and the connector 4 can be attached to a single D-ring 14 attached to the waist belt 2.

[0036] (Auxiliary connection structure) The auxiliary connection structure 17 of the indirect live-line tool support 1 according to this embodiment will be described with reference to FIG. FIG. 10 is a partial enlarged view of the periphery of the auxiliary connection structure in the indirect live-line tool support according to this embodiment. As shown in Figure 10, the auxiliary connecting structure 17 includes another snap hook 12 (however, this snap hook 12 does not need to have a rotating part 13) that is detachably hooked to another D-ring 14 provided vertically above (towards the shoulder of the worker 53) the connecting position (hooking position) of the holding structure 3 (connector 4) on the waist belt 2, and a loop circumference adjustment structure that is connected to this snap hook 12 and has a length adjustment member 83 and an auxiliary belt 18. The length adjustment member 83 provided in the auxiliary connection structure 17 has the same structure as the length adjustment member 81 (see Figs. 3 to 5). The procedure for adjusting the circumferential length of the loop formed by this length adjustment member 83 and the auxiliary belt 18 is the same as the procedure for adjusting the circumferential length of the waist belt 2 shown in Figs. 3 to 5.

[0037] To use the auxiliary connecting structure 17 as described above, the rod body 51 of the indirect live-line tool 50 is first inserted into the loop end 18a of the ring consisting of the length adjustment member 83 and the auxiliary belt 18, and then the snap hook 12 provided at the end opposite the loop end 18a is hooked onto the D-ring 14 provided on the waist belt 2 near the shoulder of the operator 53. As a result, in the indirect live-line tool 50 , the rod body 51 on the tip side based on the shaft end 52 can be connected to the vicinity of the shoulder of the waist belt 2 by the auxiliary connecting structure 17 . In this case, the angle θ (see Figure 9 above) between the axial direction of the indirect live-line tool 50 and the extension direction of the waist belt 2 is adjusted as desired by rotating the rotating part 13 of the connector 4 which is hooked onto a D-ring 14 provided on the waist belt 2 near the side of the worker 53, and the length of the auxiliary connecting structure 17 is adjusted to a length that can maintain this angle θ, so that the worker 53 can temporarily fix the indirect live-line tool 50 to his or her body while maintaining this angle θ. Therefore, the convenience during use of the indirect live-line tool support 1 according to this embodiment can be significantly improved.

[0038] In addition, since the auxiliary connecting structure 17 is provided with a length adjustment member 83, the circumferential length of the loop formed by the auxiliary belt 18 and the length adjustment member 83 can be changed as desired. In other words, the distance from the snap hook 12 that is hooked onto the D-ring 14 provided on the waist belt 2 near the shoulder of the worker 53 to the loop end 18a of the auxiliary belt 18 that is hooked onto the rod body 51 of the indirect live-line tool 50 can be changed as desired.

[0039] In addition, in order to prevent the position where the loop end 18a of the auxiliary belt 18 is hooked on the rod body 51 of the indirect live-line tool 50 from moving unintentionally, a stopper 19 may be provided near the loop end 18a of the auxiliary belt 18, and this stopper 19 may be used to tighten the loop end 18a side of the auxiliary belt 18, thereby fixing the loop end 18a on the peripheral side of the rod body 51.

[0040] (About the belt fixing band) The belt fixing band of the indirect live-line tool support 1 according to this embodiment will be described with reference to FIGS. 11A and 11B. FIG. 11A is an image diagram showing the state before the other end side of the first belt is bundled, and FIG. 11B is an image diagram showing the state after the other end side of the first belt is bundled. In the indirect live-line tool support 1 according to this embodiment, the axial length of the cylindrical body 5 of the holding structure 3 can be changed as desired using the first belt 9 and the length adjustment member 82, as shown in, for example, Figures 6 and 7 above. Moreover, by using a similar structure, the circumferential length of the waist belt 2 and the length of the auxiliary connecting structure 17 can also be changed as desired. In this case, the longer the first belt 9, the waist belt 2 and the auxiliary belt 18, the larger the range of adjustable lengths can be, but from a safety standpoint, it is not desirable to perform indirect live-line work with the ends of these belts hanging down.

[0041] In consideration of such circumstances, the first belt 9 of the indirect live-line tool support 1 according to this embodiment may be provided with a fixing band 15 at the other end 9b as shown in FIG. 11A, for example. In this case, as shown in FIG. 11B, the other end 9b side of the first belt 9 can be appropriately bundled and a fixing band 15 can be provided around the outer periphery thereof, thereby keeping the other end 9b side of the first belt 9 in a bundled state. In addition, by providing fixing bands 15 (not shown) on the waist belt 2 and the auxiliary belt 18, the end sides of each can be similarly bound together. In either case, the ends of the belt can be bundled compactly, thereby improving safety when a worker 53 works while supporting the indirect live-line tool 50 with the indirect live-line tool support 1 of this embodiment.

[0042] (About the shoulder rest) As shown in Figs. 1 and 2 above, the waist belt 2 may be provided with a shoulder pad 20 as required. In this case, the burden on the worker 53 when performing indirect live-line work by wearing the waist belt 2 (the indirect live-line tool support 1 according to this embodiment) on the body can be reduced.

[0043] [2; About the action and effect of this invention] According to the indirect live-line tool support 1 of this embodiment as described above, even in a situation where the worker 53 using the indirect live-line tool 50 cannot freely step back inside the bucket of the aerial work vehicle, the indirect live-line tool 50 can be temporarily fixed to the body of the worker 53 while increasing the range of motion of the tip (upper end) of the indirect live-line tool 50. This means that with the indirect live-line tool support 1 of this embodiment, most of the load of the indirect live-line tool 50 can be supported by the waist belt 2 via the holding structure 3, and in this case, the worker 53 can perform indirect live-line work by simply placing his or her hand on the rod body 51 to orient the indirect live-line tool 50 in the desired direction (angle). As a result, the indirect live-line tool support 1 according to this embodiment can significantly reduce the physical burden on the worker 53, particularly the burden on the arms, when performing indirect live-line work using the indirect live-line tool 50. [Industrial Applicability]

[0044] As described above, the present invention is an indirect live-line tool support that can significantly reduce the physical strain, particularly the strain on the arms, of a worker when performing indirect live-line work using an indirect live-line tool, and can be used in technical fields related to the maintenance of power transmission equipment, etc. [Explanation of symbols]

[0045] 1...indirect live-line tool support 2...body belt 2a...one end 2b...other end 3...holding structure 4...connecting device 5...cylinder 5a...insertion port 5b...outlet 6...receiving member 6a...bottom 6b...slit 7...position change structure 81, 82, 83...length adjustment member 8a...main body 8b...locking portion 8c...fixing portion 9...first belt 9a...one end 9b...other end 10...second belt 10a...one end 10b...other end 11...connecting belt 12...snap hook 13...rotating portion 13a...rotating shaft 13b...bearing 14...D-ring 15...fixing band 16a...surface side 16b...back side 17...auxiliary connecting structure 18...auxiliary belt 18a...loop end 19...stopper 20...shoulder pad 50... Indirect live wire tool 51... Rod 52... Shaft end 53... Operator

Claims

1. A waist belt that is worn diagonally across the worker's body; A holding structure that holds and accommodates a shaft end side of the indirect live-line tool; a connector for removably attaching the retaining structure to the waist belt; The holding structure includes: a cylindrical body through which the shaft end side of the indirect live-line tool is inserted; a receiving member that receives the shaft end extending from a vertically lower end of the cylindrical body; An indirect live-line tool support comprising a position change structure that connects the cylindrical body and the receiving member and changes the distance between the cylindrical body and the receiving member.

2. The position change structure includes: A length adjustment member; a first belt having one end fixed to the circumferential surface of the cylindrical body and the other end engaged with the length adjustment member, the first belt including the receiving member movable between the one end and a mounting position of the length adjustment member; The indirect live-line tool support according to claim 1, further comprising a second belt, one end of which is fixed onto the peripheral surface of the cylinder opposite the fixed position of the one end of the first belt, and the other end of which is fixed to the length adjustment member.

3. 3. The indirect live-line tool support according to claim 1, wherein the connector includes a rotating portion capable of changing an angle between an extension direction of the waist belt and an axis of the indirect live-line tool.

4. The indirect live-line tool support device according to claim 1 or 2, characterized in that it is provided with an auxiliary connecting structure arranged on the waist belt vertically above the installation position of the holding structure, connecting the waist belt and the indirect live-line tool, and having a length that can be changed.

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