JP5523925B2 - Hot support for wiring work - Google Patents

Description

  The present invention relates to a vertical hot support for wiring work, and more specifically, for example, even when a plurality of wirings are stretched in parallel, the wiring is cut in a live state and the work section is set as a power outage section. In this case, by supporting both sides of the cutting position with a hot support tool, it is possible to prevent the cutting edge from bouncing and coming into contact with the surrounding live line due to the cutting. By moving to a hot support and supporting at a position away from the other cut end, it is possible to prevent the cut ends from coming into contact with each other. The present invention relates to a hot support for wiring work for safety.

  A hot wire cutting tool used for such wiring work and a hot support tool used therefor are known in Patent Document 1 below. This live line cutting tool has two grippers for gripping two points of an overhead wire, and is connected between these grippers and remotely contracted so that each gripper can grip and hold. It is equipped with a bar-like wire tensioner called a hot stick that pulls the gripping points together to loosen the overhead wire, and the tension of the overhead wire can be maintained even if the overhead wire is cut between the loose gripping points. Therefore, wiring work is performed in which one disconnected end side is set as a construction section where a power failure occurs, and the other disconnected end side is returned to a live line state to be a non-construction section.

  In order to ensure electrical safety during the wiring operation, a description will be given with reference to the rod-shaped wire tensioner 1 according to the embodiment of the present invention shown in FIG. 1 and the two hot supports 2 and 3 attached thereto. The support tools 2 and 3 are attached to two places in the middle of the bar-shaped wire tensioner 1. One hot support 2 has hot support portions 21 and 22 on the upper and lower sides of the rod-like wire tensioner 1, and the other hot support 3 has a hot support portion 31 only on the rod-like wire tensioner 1.

  Initially, the hot support portions 21 and 31 on both sides on the bar-shaped wire tensioner 1 are supported at two locations along the overhead wire 4 to be cut. For this midway support, each of the hot support portions 21, 22, and 31 has a substantially C-shaped annular shape with an opening on one side, and is opened in the middle of the overhead line by opening a closing tool that closes the opening. It is accepted, and the overhead wire can be held by closing the closure after receiving. After the two points of the overhead wire are supported by the upper hot support portions 21 and 31, the rod-like wire tensioner 1 is contracted between the two wire grippers 5 and 6 holding the overhead wire 4 on both sides of the wiring work area. Pulling and slackening overhead line 1 like a virtual line.

  In this state, the overhead wire 4 is cut between the two points supported by the upper hot support portions 21 and 31. However, since the hot support portions 21 and 31 still support the overhead wire 4, the two cutting ends jump. Prevent contact with surrounding overhead wires. Next, on one hot support 2 side, the closures in the openings of the upper and lower hot support portions 21 and 31 are opened, and the one cut end 4a side supported by the upper hot support portion 21 is set to the lower hot support portion 21 side. It moves to the support part 22, closes a closing tool, and supports it in the position away from the other cut end 4b. This prevents the cut ends 4a and 4b from contacting each other.

  In the hot support tool disclosed in Patent Document 1, the mounting hole is fitted in the axial direction in the middle of the rod-shaped wire tensioner, and fixed in place by screwing or the like. Further, the closing tool employs a slide type that slides between a closed position where the opening is closed across both sides and an open position shifted to one side so as to open the opening. The closing position of the closing tool is held by elastic engagement with a click mechanism provided on the hot support portion side, and the opening operation is performed against the elastic engagement of the click mechanism via the remote operation portion. .

  On the other hand, since the hot support described in Patent Document 1 is attached by attaching the mounting hole to the bar-shaped wire tensioner in the axial direction, it is connected to both ends of the bar-shaped wire tensioner to be removed for maintenance after mounting. Equipment such as a gripping device or a connecting device with the gripping device becomes an obstacle and the work becomes complicated. In response to this, the present applicant has developed and adopted a hot support a as shown in FIG. The hot support tool a is opened after the mounting portion b to the bar-shaped wire tensioner is opened to the side without the hot support portion c, and is fitted to the bar-shaped wire tensioner in the direction perpendicular to the axis through the opened opening d. The opening d is narrowed by fastening the part d with the screw fastener e so that the part d can be fixed to the rod-shaped wire tensioner. The hot support tool a of this example is provided with a slide-type closing tool f at the opening d of the hot support part c, and is fitted and mounted on a guide g that performs straight travel and stroke regulation. An operating portion h is provided, and the closing position is elastically locked by a click mechanism j.

JP-A-8-331723

  By the way, in the mounting structure to the rod-shaped wire tensioner such as the hot support tool a shown in FIG. 4, the fastening pressure to the rod-shaped wire tensioner of the mounting portion b is sufficiently secured, It is necessary to prevent inadvertent movement due to a collision or entanglement with a remote operation tool in remote operation under such circumstances. For this reason, the fastening allowance is set sufficiently in response to the molding error of the rod-shaped wire tensioner or the hot support tool a, but sometimes the fastening pressure becomes excessive and the mounting portion b is damaged. Sometimes it happens. However, since all are located in a part of the main body, there is a disadvantage that the entire main body becomes a maintenance target even if maintenance is performed at one place.

  In view of such a problem, the present invention can be divided at the mounting portion to the wiring work tool and can be attached and detached in the direction perpendicular to the axis. It is an object of the present invention to provide a hot support tool that can reduce the maintenance target in half in the event of an emergency.

  In order to achieve the above object, the hot support tool of the present invention includes a main body having a mounting portion to the shaft portion of the wiring work tool, and an opening that opens to one side around the mounting portion of the main body. A substantially U-shaped and C-shaped hot support portion having a lip is integrally formed, and a closing device for opening and closing the hot support portion at the opening portion of the hot support portion is provided in a closed position and an open position with remote control. In the hot support provided so that it can be selectively held, the main body is divided so that the attachment part can be connected and disconnected at the attachment part, and maintenance candidate parts set according to the durability prediction are arranged on both sides of the division boundary. It is characterized by being distributed.

  In such a configuration, since the hot support tool is divided at the mounting portion of the main body to the wiring work tool, by releasing the connection, the mounting portion is positioned so as to sandwich the shaft portion of the wiring work tool from both sides. Can be attached by connecting each other, and can be removed by removing the connection. In addition, the main body is a closing member that is a movable member in which the divided mounting part is easily subjected to an excessive load due to the fastening structure, or the strength tends to be insufficient for inadvertent external force in handling or use, and its mounting structure Parts, other equipment members, and incidental members, which are not necessarily damaged, but have a high probability of being subject to maintenance. Therefore, it is possible to reduce the probability that the maintenance candidate part is simultaneously damaged by both of the main body divided pieces obtained by dividing the main body at the mounting part.

  In the above, the main body further includes a hot support portion having an opening at the upper end of the divided upper mounting portion half, integrally formed on the lower side which is the opposite opening portion, and the lower mounting portion. The unit is a single unit, and has a screw fastening part to the one mounting part half body at both ends across the axis of the mounting part, and the shaft part of the wiring work tool in which the mounting part is mounted between these two screw fastening parts It is possible to have a screwing portion for

  In such a configuration, in addition to the above, since the hot support portion has an opening at the upper end, if the closure is opened, the overhead wire can be fitted from above and received from the lower and both sides. Since the opening is closed by closing the closing tool without being inadvertently removed until it is closed, it can be received regardless of which direction the overhead line jumps when the overhead line is cut. In addition, the single mounting part half receives the screw fastening force to the mounting part half integral with the hot support part at the screw fastening parts on both sides, and the screw fastening part is screwed to the shaft part of the power distribution tool. In the direction opposite to the fastening force, the screw fastening part is located at both ends of the single mounting part half body, it is difficult to give excessive strength due to volume limitation, damage in case of emergency A maintenance candidate part for the hot support part and its attachment part, and an accessory equipment part such as a biasing spring and an elastic locking tool for the closure part also become a maintenance candidate part. However, since these maintenance candidate parts are allocated and arranged on both sides of the dividing boundary of the mounting part, the probability that both of the maintenance candidate parts on both sides of the dividing boundary are damaged at the same time can be halved.

  In the above, the main body is further connected to both sides of the mounting portion at a portion where the pair of hot support portions avoid the opening portions, and the closing tool mounting portion to which the closing tool of one hot support portion is attached is the other. The main body split piece connected to the closing tool receiving part that receives the closing tool of the hot support part in the closed position, and the closing tool receiving part that receives the closing tool of the other hot support part of the one hot support part in the closed position It is divided by the mounting part into the main body split piece connected to the closure mounting part to which the tool is attached, and has a screw fastening part to the other mounting part half on both sides across the axis of the mounting part of one mounting part half The other mounting portion half may have a screwing portion for the shaft portion of the wiring work tool on which the mounting portion is mounted.

  In such a configuration, in addition to the above, each of the mounting part halves is connected to the two divided areas, and a volume that can withstand excessive external force can be obtained. In addition, additional equipment such as a closing tool, its attachment, and a biasing spring and elastic locking device for the closing are also candidate maintenance parts, and these are distributed to the main body split pieces on both sides of the split boundary at the main body mounting part. Arranged, the probability that the maintenance candidates in both areas will be damaged at the same time is halved.

  In the above, the one hot support part is located above the mounting part and has an opening at the upper end. At one opening end, a closing tool that opens and closes around an axis, and opens the closing tool around the axis. A spring that biases in the direction, and a locking device that is elastically engaged in the closed position and locked in the closed position, and the free end of the closing device is closed at the other open end. The other hot support part is located below the mounting part, the opening part is on the side part, and the opening part opens and closes around the axis at the lower opening end. Equipped with a spring that urges around in the opening direction, and a closing device and a locking device that elastically engages at the closed position and locks in the closed position, and at the upper open end, the free end of the closing device It is possible to provide a closing tool receiver that receives the valve at the closed position.

  In addition to the above, the upper hot support part has an opening at the upper end, so if the closure is opened, it will be received from the bottom and both sides if the overhead wire is fitted from above, until the closure is closed Since the opening is closed by closing the closing tool without inadvertently removing, the overhead wire can be received in any direction when the overhead wire is cut. In addition, since the lower hot support portion has an opening on the side, the overhead wire can be transferred from the upper hot support portion without causing the lower hot support portion to dive downward. Can be put. At the same time, the closing tool is opened and closed around the axis of the lower opening end of the opening of the lower hot support part, so that the opening position becomes a side projecting side, and the overhead wire transferred from the upper hot support part is It is possible to guide the transfer to the lower hot support part without receiving from the bottom and dropping off.

  According to the hot support tool of the present invention, the main body is divided by the mounting part to the wiring work tool, and the mounting part halves are placed from both sides to the shaft part of the wiring work tool in a state of mutual disconnection. Can be easily attached by connecting each other, and can be easily removed by releasing the connection. At the same time, the maintenance candidate part set corresponding to the high probability of being a maintenance target is uniquely allocated to the attachment / detachment structure by dividing the attachment part, and distributed to the main body divided pieces on both sides of the division boundary at the attachment part This reduces the probability that the maintenance candidate part will be damaged at the same time on both of the divided pieces of the main body, and only one of the divided pieces of the main body is targeted for maintenance. The cost is halved, and even for partial repairs, the non-maintenance side can continue to be used by simply exchanging the target side without trouble.

  In addition to the above, if the hot support part has an opening at the upper end and the overhead wire is fitted from above, it will be received from the lower part and both sides and will not come off carelessly, and when the closure is closed, It is easy to ensure electrical safety by catching the overhead wire in any direction. In addition, the single mounting part half acts on the screw fixing part on both sides and the screwing part between them, and it becomes a maintenance candidate part due to volume limitation. It closes the hot support part, its attachment part, and the closing part. Ancillary equipment parts such as urging springs and elastic locking tools for tools also become maintenance candidate parts, and due to the distribution arrangement on both sides of the division boundary of these attachment parts, both maintenance candidate parts on both distribution sides are damaged at the same time The probability is halved, and only one of the divided parts of each main body is subject to maintenance, and it takes less time to replace the maintenance target side, and the cost of goods is halved. The target side can be replaced without any hassle and used for continuous use.

  In addition to the above, it is possible to eliminate the necessity of connecting each half of the mounting part to each of the divided pieces of the main body as a maintenance candidate part. Ancillary equipment parts such as fasteners are also maintenance candidate parts, which are distributed to the main body split pieces on both sides, so that the probability that both maintenance candidates will be damaged at the same time is halved. Only one of the pieces is the target, and it takes less time to replace the target side, and the cost of the article is reduced by half. For partial repair, the non-target side can replace the target side without any trouble and can be used continuously.

  In addition to the above, when the upper hot support part has an opening at the upper end and the overhead wire is fitted from above, it can be received from the lower part and both sides and will not come off carelessly, and when the closure is closed, the overhead line is separated Even if the overhead wire bounces in any direction, it is easy to achieve electrical safety. In addition, the lower hot support portion has an opening on the side, and the transfer of the overhead wire from the upper hot support portion can be easily achieved with a small routing route that does not dive down the lower hot support portion. At the same time, the closing position of the closing member of the lower hot support part is the side projecting from the lower opening end to the side, and the overhead line moving from the upper side is received from the lower side so as not to fall off and Since the transfer to the support portion is guided, the transfer can be achieved easily and quickly without failure.

It is a side view which shows the wiring work tool equipped with the hot support tool which concerns on embodiment of this invention. It is the front view, side view, and top view which show one example of the hot support tool which has the hot support part on the both sides of the mounting part to the axial part of the working tool. It is the front view and top view which show one example of the hot support tool which has the hot support part in the one side of the mounting part to the axial part of the working tool. It is a front view which shows one example of the hot support tool which has the hot support part in the one side of the mounting part to the axial part of the conventional wiring work tool.

  Several specific examples of the hot support according to the embodiment of the present invention will be described with reference to FIGS. 1 to 3 for the understanding of the present invention. The following description is a specific example of the present invention and does not limit the matters described in the claims.

  The hot support tools 2 and 3 of the present embodiment shown in FIGS. 1 to 3 commonly have mounting portions 23 and 33 for the shaft portion 11 of the rod-shaped wire tensioner 1 described as a wiring work tool. A main body 24, 34 is provided, and the mounting parts 23, 33 of the main body 24, 34 are provided with an opening 12 that opens to one side as shown in FIGS. 2 and 3. At least one hot support is integrally formed. In the illustrated example, one hot support 2 has hot support portions 21 and 22 on the upper and lower sides of the mounting portion 23 in order to mount and use it on the rod-like wire tensioner 1 that performs the separation of the overhead wire 4 according to the procedure described above. The other hot support 3 has the hot support 31 only on the mounting portion 33. However, the present invention is not limited to this, and the number and form of the hot support portions can be variously changed according to the difference in procedure and wiring work other than the separation. Further, the opening 10 of the hot support portions 21, 22 and 31 is provided with a closing device 10 for opening and closing the hot support portions 21, 22 and 31, which is accompanied by a remote operation, as shown in FIG. 2 and FIG. It is provided so that it can be selectively held at the open position indicated by the line.

  In any case, in order to achieve the purpose of the description, in various things such as the hot support 2 and the hot support 3, the mounting parts are connected to the main bodies 24, 34 by the mounting parts 23, 33. The maintenance candidate parts 14 divided so as to be released and set according to the durability prediction are distributed and arranged on both sides of the division boundary 15.

  As described above, since the hot supports 2 and 3 are divided by the mounting portions 23 and 33 to the rod-like wire tensioner 1 as the wiring work tools of the main bodies 24 and 34, the mounting portions can be removed by releasing the connection. As shown in FIGS. 2 and 3, the shaft portions 11 of the bar-shaped wire tensioner 1 can be attached by connecting them to each other and connecting them together, and can be removed if they are disconnected. Further, the main bodies 24 and 34 are movable members in which the divided mounting portions 23 and 33 are likely to receive an excessive load due to the fastening structure, or the strength tends to be insufficient with respect to an unintended external force in handling or use. Although it has the closure 10, its attachment structure part, other equipment members, and incidental members, and they are not necessarily damaged, there is a high probability of being a maintenance target. 33, the main bodies 24 and 34 are divided and arranged on both sides of the dividing boundary 15 so that both the main body divided pieces 24a and 24b divided by the mounting portions 23 and 33 and the main body divided pieces 34a and 34b In both cases, the probability that the maintenance candidate unit 14 is damaged at the same time can be halved.

  As a result, the main bodies 24, 34 are divided by the mounting portions 23, 33 to the rod-like wire tensioner 1 as the wiring work tool, and the attachment portions are attached to the shaft portion 11 of the rod-like wire tensioner 1 in a state of mutual disconnection. The halves 23a, 23b and 33a, 33b can be easily attached by connecting each other and then easily removed by releasing the connection. At the same time, the maintenance candidate portion 14 set corresponding to the high probability of being a maintenance target using the attachment / detachment structure by the division of the attachment portions 23 and 33 is set on both sides of the division boundary 15 at the attachment portions 23 and 33. The probability that the maintenance candidate portion 14 is damaged at the same time in each of the main body split pieces 24a and 24b and in both of the main body split pieces 34a and 34b due to the distribution arrangement between the main body split pieces 24a and 24b and the main body split pieces 34a and 34b. In order to perform maintenance, only one of the main body divided pieces 24a and 34a is targeted, and it takes less time to replace the target side, and the cost of goods is halved. By simply exchanging the target side without trouble, it can be used continuously.

  In the hot support tool 2 of the example shown in FIG. 2, the main body 24 is connected to both sides of the mounting portion 23 at a portion where the pair of hot support portions 21, 22 avoids the opening portion 12, and one hot support. The closing tool attaching part 16 to which the closing tool 10 of the part 21 is attached is connected to the closing tool receiving part 17 that receives the closing tool 10 of the other hot support part 22 in the closed position, and the one of the hot support parts 21 The closing part receiving part 17 for receiving the closing part 10 of the other hot support part 22 at the closing position is divided by the mounting part 23 into a main body split piece 24b connected to the closing part attaching part 16 to which the other closing part 10 is attached, On one side of the mounting part half 23a, the mounting part 23 has screw fastening parts 18, 18 by screws 18a to the other mounting part half 23b, and the mounting part 23 is mounted on the other mounting part half 23b. Dress It is assumed that with a screwed portion 19 by screw 19a with respect to the shaft portion 11 of the rod-like Zhang ray apparatus 1 is.

  As a result, each of the mounting portion halves 23a and 23b is connected to the two main body divided pieces 24a and 24b obtained by dividing the main body 24, and a volume that can withstand excessive external force can be obtained. There is no. However, the accessory 10 such as the closing tool 10 and its attachment part, the biasing spring and the elastic locking tool for the closing tool 10 are also the maintenance candidate parts 14, and these are the parts of the dividing boundary 15 at the mounting part 23 of the main body 24. By distributing and arranging the main body divided pieces 24a and 24b on both sides, the probability that the maintenance candidate portions 14 of both the main body divided pieces 24a and 24b are damaged at the same time can be halved.

  Accordingly, it is possible to eliminate the necessity of connecting each of the mounting part halves 23a and 23b to the divided main body pieces 24a and 24b as the maintenance candidate part 14, and the closing tool 10, the closing tool mounting part 16, and the closing tool. The accessory equipment parts such as the urging springs and the elastic locking members for 10 also become the maintenance candidate parts 14, which are distributed to the main body divided pieces 24 a and 24 b on both sides, so that both maintenance candidate parts 14 are damaged at the same time. The probability is reduced by half, and only one of the main body divided pieces 24a and 24b is targeted for maintenance, and it takes less time to replace the maintenance target side, and the cost of goods is halved. The target side can replace the target side without any hassle and use it continuously.

  Further, the one hot support portion 21 is positioned above the mounting portion 23, the opening 12 is at the upper end, and the opening 10 is opened and closed around the shaft 25 by using the one opening end 12 a as the closing device attachment portion 16. A spring 26 for urging the closing tool 10 around the shaft 25 in an opening direction; and an elastic locking tool 27 for elastically engaging the closing tool 10 at its closed position and locking it at the closed position. The other opening end 12b is provided with a closing member receiving portion 17 for receiving the free end 10a of the closing device 10 in the closed position, and the other hot support portion 22 is located below the mounting portion 23 so that the opening portion 12 is provided. A closing device 10 that is located on the side and opens and closes around the shaft 25 with the lower opening end 12c as a closing device attachment portion 16, a spring 26 that biases the closing device 10 about the shaft 25 in the opening direction, and the closing device 10 And elastically engages in the closed position and locks in the closed position Equipped with an elastic fastener 27, above the open end 12d, it is assumed in which a closure receiving portion 17 which receives a position closing the free end 10a of the closure 10.

  Thereby, since the upper hot support part 21 has the opening part 12 at the upper end, if the closing tool 10 is opened, if the overhead wire 4 is fitted from above, it is received from the lower part and both sides, and the closing tool 10 is closed. Since the opening 12 is closed by closing the closing tool 10 without being carelessly removed by the time, the overhead wire 4 can be received in any direction when the overhead wire 4 is cut. Further, since the lower hot support portion 22 has the opening 12 on the side, in order to transfer the overhead wire 4 from the upper hot support portion 21, the overhead wire 4 is placed below the lower hot support portion 22. It is transferred without being submerged in. At the same time, since the closing tool 10 is opened and closed around the shaft 25 of the lower opening end 12d of the opening 12 of the lower hot support portion 22, the opening position thereof is a side projecting sideward as indicated by an imaginary line in FIG. The overhead wire 4 transferred from the upper hot support portion 21 can be received from below and not dropped, and can be guided to transfer to the lower hot support portion 22.

  Therefore, if the upper hot support portion 21 has the opening 12 at the upper end and the overhead wire 4 is fitted from above, the overhead wire 4 can be received from the lower side and the both sides without being inadvertently removed, and the overhead wire 4 is separated when the closing tool 10 is closed. Even if the overhead wire 4 bounces in any direction, it is easy to receive the electrical safety. Further, the lower hot support portion 22 has the opening portion 12 on the side, and the transfer of the overhead wire 4 from the upper hot support portion 21 is performed by a small route that does not dive the lower hot support portion 22 downward. Easy to achieve. At the same time, the closing position of the closing tool 10 of the lower hot support portion 22 is the side projecting from the lower opening end 12 to the side, and the overhead wire 4 moving from the upper side is received from below and is not dropped off. Since the transfer to the lower hot support portion 22 is guided, the transfer can be achieved easily and quickly without failure.

  More specifically, the closing tool attaching portion 16 is attached to the opening ends 12a and 12c so that the base portion of the closing tool 10 is received in the recess 16a opened to the opening ends 12b and 12d and can be opened and closed by the shaft 25. . The spring 26 has both side vine portions 26b and 26c connected by a bridge portion 26a, and the bridge portion 26a is hung on the free end 10a side of the closure 10 as shown in FIG. The parts 26b and 26c are located around the shaft 25 on both sides of the base of the closing tool 10, and their end parts 26d and 26e are hooked on the opening ends 12a and 12d to urge the closing tool 10 in the opening direction.

  The elastic locking device 27 is inserted into a main body 27a screwed from the back of the concave portion 16a of the open ends 12a and 12c and passes through the main body 27a from the outside into the concave portion 16a. When the closing tool 10 is in the closed position indicated by the solid line, the lock pin 27b is elastically engaged with the engaging recess 10b provided on the outer periphery of the base portion. By combining, the closing tool 10 is locked in the closed position. Therefore, a locking tool is not necessary on the closing tool receiving portion 17 side of the open ends 12b and 12d. That is, it is possible to centrally arrange the closing tool 10 serving as the maintenance candidate part 14 and the accessory equipment necessary for the same on the closing tool attaching part 16, and avoid the closing tool receiving part 17 from becoming the maintenance candidate part 14. An operation ring 27c is provided at the rear end of the lock pin 27b. By pulling the lock pin 27b outward against the spring by the operation ring 27c, the lock with respect to the closing tool 10 is released, and the closing tool 10 is released. Is automatically opened by the bias of the spring 26. To close the closing tool 10, the closing tool 10 itself may be rotated to the closing side against the spring 26. When the closing tool 10 is in the closed position, it is automatically elastically locked by the elastic locking device 27.

  Correspondingly, the closing tool receiving portion 17 only needs to satisfy a form in which the free end 10a of the closing tool 10 can be received at the closed position without shaking, and in the illustrated example, the free end 10a of the closing tool 10 is formed as a bifurcated form. Is received in the closed position. When the closing tool 10 is attached by the shaft 25, spacers 29, 29 fitted around the shaft 25 on both sides of the base of the closing tool 10 are brought into pressure contact with both surfaces of the base of the closing tool 10 to suppress the swing of the closing tool 10. . On the other hand, the bifurcated form of the closing tool receiving portion 17 is set to an interval that allows a small gap S as shown in FIG. 2C to smoothly receive the free end 10a of the closing tool 10, and the free end 10a is set to the gap S. A chamfered portion 17a is formed on both sides of the bifurcated receiving port so that it can be received even if it is closed at a wobbling position exceeding.

  Moreover, the hot support tool 3 shown in FIG. 3 has a main body 34 divided into a divided upper mounting part half body 33a, a hot support part 31 having an opening 12 at the upper end, and a lower side as an opposite opening part. The lower mounting portion half body 33b is a single body, and the screw fastening portions 35, 35 by screws 35a to the one mounting portion half body 33a are provided at both end portions across the axis of the mounting portion 33. It has a screwing part 36 with a screw 36 a for the shaft part 11 of the rod-like wire tensioner 1 to which the attachment part 33 is attached between these screw fastening parts 35, 35.

  Thereby, since the hot support part 31 has the opening part 12 at an upper end, if the closing tool 10 is opened and the overhead wire 4 is fitted from above, it can be received from the lower part and both sides like the hot support part 21. Since the opening 12 is closed by closing the closing tool 10 without being inadvertently removed until the closing tool 10 is closed, the overhead wire 4 can be received in any direction when the overhead wire 4 is cut. . In addition, the single mounting portion half 33 b has screw fastening portions 35, 35 on both sides receiving a screw fastening force to the mounting portion half 33 a integral with the hot support portion 31, and the space between these screw fastening portions 35, 35 is between The reaction force of screwing with respect to the shaft portion 11 of the rod-shaped wire tensioner 1 is received in a direction opposite to the fastening force, and the screw fastening portions 35 and 35 are positioned at both ends of the single mounting portion half body 33a so as to limit the volume. In addition, it is difficult to give excessive strength, and it becomes the maintenance candidate part 14 for damage in the event of an emergency, the closing tool 10 of the hot support part 31, its closing tool mounting part 16, and the hot support part described above for this closing tool 10 The auxiliary equipment parts such as urging springs and elastic locking members shown with the same reference numerals as those in the cases 21 and 22 are also the maintenance candidate parts 14. However, in this case as well, these maintenance candidate parts 14 are allocated and arranged on both sides of the dividing boundary 15 of the mounting part 33, and the probability that both of the maintenance candidate parts 14 on both sides of the dividing boundary 15 are damaged at the same time can be halved.

  Therefore, when the hot support 31 has the opening 12 at the upper end and the overhead wire 4 is fitted from above, it can be received from the lower and both sides and cannot be removed carelessly, and when the closing tool 10 is closed, the overhead wire 4 is separated. Even if the overhead wire 4 jumps in any direction, it is easy to ensure electrical safety. Further, the mounting part half 33a as a single unit acts on the screw fixing part 36 by the screw fastening parts 35, 35 and the screw 36a between them, and becomes a maintenance candidate part 14 due to volume limitation, and becomes a hot support part. The auxiliary equipment parts 31 such as the closing tool 10, its attaching part 16, an urging spring or an elastic locking tool for the closing tool 10 also become the maintenance candidate parts 14, and both sides of the dividing boundary 15 of these mounting parts 33. The distribution arrangement reduces the probability that both maintenance candidate portions 14 on both distribution sides will be damaged at the same time, and only one of the main body divided pieces 34a and 34b is targeted for maintenance, and the maintenance target side is replaced. In addition, the cost of goods is reduced by half. It can be subjected to continued use.

  Further, the screwing portion 36 is screwed to the shaft portion 11 from two directions. Specifically, the angle between the two directions is 45 °. However, it is not limited to this, the angle is free, and the screwing may be from one direction. The two screw fastening portions 35 and the screwing portions 36 are positioned equidistantly from the center position of the mounting portion 33 on the dividing boundary 15 line of the mounting portion 33 so that their fastening force and screwing force can work in a balanced manner. It is good to make it. For the same reason, if there is only one screwing portion 36, it is preferable to set the mounting portion 33 center position on the dividing boundary 15 line.

  The shaft portion 11 is made of resin, for example, FRP, and even if the end surfaces of the screws 19a and 36a are planes perpendicular to the shaft, if the shaft portion 11 is pressed, the shaft portion 11 side is somewhat familiar and becomes a surface pressure state. Therefore, the anti-rotation effect is demonstrated. Incidentally, the main bodies 24 and 34 are made of aluminum, and the closing tool 10 and the screws 18a, 19a, 35a and 36a, and the elastic locking tool 27 are made of stainless steel and have rust prevention properties.

  INDUSTRIAL APPLICABILITY The present invention can be applied to a hot support that is practically used for hot-supporting an overhead wire in power distribution work, and even if there are a plurality of maintenance candidate portions, maintenance labor and parts costs can be reduced.

DESCRIPTION OF SYMBOLS 1 Bar-shaped tension device 2, 3 Hot support tool 21,22,31 Hot support part 23,33 Mounting part 23a, 23b, 33a, 33b Mounting part half body 24,34 Main body 24a, 24b, 34a, 34b Main body division | segmentation piece 10 Closing tool 11 Shaft part 12 Opening part 12a, 12b, 12c, 12d Opening end 14 Maintenance candidate part 15 Division boundary 16 Closing tool mounting part 17 Closing tool receiving part 18, 35 Screw fastening part 19, 36 Screw fastening part 25 Shaft 26 Spring 27 Elastic Locking Tool

Claims (4)

  A main body having a mounting portion for attaching the shaft of the wiring work tool, and at least one hot support portion of substantially U-shape or C-shape having an opening opening to one side around the mounting portion of the main body; In a hot support tool that is integrally formed and is provided so that a closing tool that can be opened and closed at the opening of the hot support part can be selectively held in a closed position and an open position by remote control. A hot support device, characterized in that the installation candidate is divided so that the attachment part can be connected and disconnected at the part, and the maintenance candidate parts set according to the durability prediction are distributed and arranged on both sides of the division boundary.   The main body is provided with a hot support portion having an opening at the upper end in the upper half of the divided upper mounting portion, integrally formed on the lower side which is the opposite opening portion, and the lower mounting portion is a single body, The screw fastening part to the one mounting part half is held at both ends across the axis of the mounting part, and a screw fixing part for the shaft part of the wiring work tool to which the mounting part is attached between these screw fastening parts. The hot support according to claim 1, which is held.   The main body is connected to both sides of the mounting portion at a portion where the pair of hot support portions avoid those opening portions, and the closing tool mounting portion to which the closing tool of one hot supporting portion is attached is the other hot supporting portion. The main body split piece that is connected to the closing tool receiving part that receives the closing tool in the closed position, and the closing that receives the closing tool of the other hot support part of the one hot support part in the closed position is closed by attaching the other closing tool. It is divided by the mounting part into the main body split piece connected to the tool mounting part, and has a screw fastening part to the other mounting part half on both sides across the axis of the mounting part of one mounting part half, and the other mounting part The hot support tool according to claim 1, further comprising a screwing portion for a shaft portion of the wiring work tool on which the mounting portion is mounted on the half body.   One hot support portion is located above the mounting portion and has an opening at the upper end. At one opening end, a closing tool that opens and closes around an axis, and biases the closing tool around the axis in an opening direction. Equipped with a spring, a closing device and a locking device that elastically engages at the closed position and locks to the closed position, and the other opening end receives the free end of the closing device at the closed position. The other hot support part is located below the mounting part, the opening part is on the side part, a closing tool that opens and closes around the axis at the lower opening end, and the closing tool in the opening direction around the axis. Equipped with an urging spring, a closing tool and a locking tool that elastically engages in the closed position and locks in the closed position, and receives the free end of the closing tool in the closed position at the upper open end. The hot support according to claim 3, further comprising a stopper receiver for stopping.