JP5474418B2 - Indirect hot wire work tool - Google Patents

Description

  The present invention relates to an indirect hot wire working tool for holding a connecting tool that connects an installed main line and a branch line that branches an electric circuit from the main line. Specifically, a pair of tools that sandwich the main line at one end side. For indirect hot wire work to hold connectors, spring members that urge to widen the gap on one end of the connector, and bolts and nuts that narrow the gap on the one end of the connector Related to tools.

  Conventionally, an electric circuit is electrically branched by connecting a branch line such as an underline to a trunk line such as a high-voltage distribution line installed on a steel tower or utility pole, and then generally via a high-voltage cutout or a transformer from the branch line Electricity is supplied to consumers such as households. The trunk line and the branch line are connected by a dedicated connector 100 as shown in FIG. 5, for example.

  This connector 100 is a type that is generally popular, and is a deformed plate-like first and second connector portions 110 and 120 that face each other, and a spring member 130 that is a retaining ring formed by forming a wire into a C shape. , Bolts 141 and nuts 142.

  The first and second connector portions 110 and 120 hold the trunk line 1 at one end (upper end in the illustrated state of use) 110a and 120a. The spring member 130 is attached to the other end portion (lower end portion in the illustrated state of use) of the first and second connector portions 110 and 120, and is one end portion of the first and second connector portions 110 and 120. Energize to widen the distance between the 110a and 120a sides. The bolt 141 passes through the intermediate portion of the first and second connectors 110 and 120, and the nut 142 is tightened, whereby the interval between the one end portions 110a and 120a of the first and second connector portions 110 and 120 is reduced. Has been.

  More specifically, as shown in FIG. 5B, the widths of the connector portions 110 and 120 are such that the other end portions 110b and 120b are narrower than the one end portions 110a and 120a and the intermediate portions 110c and 120c. Is formed. Accordingly, the first and second connector portions 110 and 120 are provided with step portions 110d and 120d at the boundaries between the intermediate portions 110c and 120c and the other end portions 110b and 120b.

  In addition, on the inner surfaces of the first and second connector portions 110, 120 on the one end portions 110a, 120a side, concave curved grip portions 110e, 120e extending along the side surface of the trunk line 1 are formed. The main line 1 is held between 110e and 120e.

  In addition, a protruding portion 120f is provided on the inner surface of the second connector portion 120 on the other end portion 120b side, and the protruding portion 120f abuts on the inner surface of the first connector portion 110 on the other end portion 110b side. The first and second connector portions 110 and 120 are arranged such that the distance between the one end portions 110a and 120a is narrowed or widened. Further, through holes 110g and 120g through which the shaft portion 141b of the bolt 141 passes are formed in the intermediate portions 110c and 120c of the first and second connector portions 110 and 120, respectively.

  The bolt 141 is formed in such a length that the proximal end portion and the distal end portion of the shaft portion 141 b protrude from the outer side surfaces of the first and second connector portions 110 and 120. Further, the base end portion of the shaft portion 141b is formed in a quadrangular prism shape, and a through hole (not numbered) through which the branch line 2 is inserted is formed in the width direction of the connector portions 110 and 120. In order to keep the through-holes facing the width direction of the first and second connector portions 110 and 120 and to prevent the bolt 141 from rotating together when the nut 142 is tightened or loosened, The through hole 110g formed in the first connector portion 110 has a quadrangular shape.

  A square washer 151 is sandwiched between the head 141 a of the bolt 141 and the first connector portion 110. Accordingly, the square washer 141 is formed with a through hole (not numbered) through which the shaft 141b of the bolt 141 passes. The square washer 141 and the outer surface of the first connector portion 110 sandwich the branch line 2 inserted through the through hole of the bolt 141. A groove 110f for fitting the branch line 2 is formed on the outer surface of the first connector portion 110.

  A washer member 150 is sandwiched between the nut 142 fastened to the shaft portion 141 b of the bolt 141 and the second connector portion 120. The washer member 150 is a combination of a spring washer 151 on the nut 142 side and a flat washer 152 on the second connector portion 120 side.

  The C-shaped spring member 130 sandwiches the other end portions 110b and 120b of the first and second connector portions 110 and 120 from the outer surface at each end, and the first and second connector portions 110 and 120 The one end portions 110a and 120a are biased so that the distance between them is increased. A recess (not shown) is formed on the outer surface of the first and second connector portions 110 and 120 at a portion sandwiched between the end portions of the spring member 130 so that the end portion of the spring member 130 is not easily detached. Have been

  In order to connect or separate the trunk line 1 and the branch line 2 with such a connecting tool 100, a connecting tool support tool 200 that is an indirect hot wire working tool as shown in FIG. 6 is used. . The connector support 200 is provided on the distal end side with a cylindrical body 210 having a slit 211 into which the spring member 130 of the connector 100 is fitted, and on the proximal end side of the cylindrical body 210, and is provided with an insulating operation rod 3 (FIG. 7). (See FIG. 4).

  Here, a method of connecting the trunk line 1 and the branch line 2 using the coupler 100 using the coupler 100 will be described. The tip of the branch line 2 is inserted in advance through a through hole formed in the shaft 141b of the bolt 141 of the connector 100, and the tip of the branch line 2 is sandwiched between the first connector part 110 and the square washer 151. Like that. The first and second connector portions 110 and 120 are urged by the spring member 130 so that the one end portions 110a and 120a are separated from each other, and the branch line 2 is connected to the first connector portion 110 and the square washer 151 with a spring force. Therefore, the bolt 141 does not come out of the through hole formed in the shaft portion 141b of the bolt 141.

  On the other hand, as shown in FIG. 7, the trunk line 1 is in a state in which a portion connecting the branch line 2 is peeled and the core wire 1 a is exposed. Then, the operator winds the vicinity of the end of the branch line 2 around the main line 1, and connects the front end of the branch line 2 along the main line 1 by a stray link tong (not shown) and attaches it to the front end of the branch line 2. The connected connector 100 is brought close to the part where the main line 1 is peeled off. In this connector 100, the gripping portions 110e and 120e of the first and second connector portions 110 and 120 are close to each other in parallel or substantially in parallel with the main line 1, and the spring member 130 is in a downward posture.

  On the other hand, the tip portion of the insulating operation rod 3 is attached to the chrysanthemum portion 220 of the connector support 200. By lifting the insulating operation rod 3, the coupling tool support 200 is brought close to the coupling tool 100, the spring member 130 of the coupling tool 100 is fitted into the slit 211 of the coupling tool support 200, and the first and second connector portions. The other end portions 110 b and 120 b of 110 and 120 are inserted into the cylindrical body 210 of the coupler support tool 200, and the stepped portions 110 d and 120 d are placed on the edge of the cylindrical body 210. And the space | interval of the 1st, 2nd connector parts 110 and 120 is expanded rather than the outer diameter of the core wire 1a which the trunk line 1 exposed. In addition, it is fixed by rotating the seat 220, so that the spring member 130 can be released by rotating the seat 220 in the opposite direction after the work.

  Then, by slightly raising the insulating operation rod 3, the exposed core wire 1a of the trunk line 1 is positioned between the gripping portions 110e and 120e of the first and second connector portions 110 and 120 of the connector 100. To do. Then, by using a ratchet attached to the tip of an insulating insulating rod (not shown), the nut 142 of the connector 100 is tightened to narrow the interval between the one end portions of the first and second connector portions 110 and 120. The holding portions 110e and 120e are fixed in a state of sandwiching the core wire 1a of the trunk line 1. Then, the trunk line 1 and the branch line 2 are connected.

  Finally, when the insulating operation rod 3 is lowered, the spring member 130 of the connector 100 is removed from the slit 211 of the connector support 200, and the other end portions 110b and 120b of the first and second connector portions 110 and 120 are removed. Is extracted from the cylindrical body 210 of the connector support 200, and the series of operations is completed.

  In addition, Patent Document 1 discloses an underline connector for indirect hot-wire work that temporarily holds a main line and allows the branch line and the main line to be finally tightened in this state.

JP 2002-56942 A

  When connecting the trunk line 1 and the branch line 2, the nut 142 of the connector 100 is tightened, so an excessive load is applied to the spring member 130 of the connector 100 and the cylinder 210 of the connector support 200, The spring member 130 may come off from the connector portions 110 and 120. In this case, the spring member 130 must be reattached to the connector portions 110 and 120, but this work becomes very troublesome.

  In addition, in order to connect the trunk line 1 and the branch line 2, it is possible to use an underline connector for indirect live-line work as described in Patent Document 1, but a commonly used connector. 100 is not only required to be used, but also in the work of separating the main line 1 and the branch line 2 connected by the connecting tool 100 which is generally popular, the spring member 130 is removed from the connector portions 110 and 120. It may come off.

  Then, this invention makes it a subject to provide the tool for indirect hot-wire work which made it possible to perform the operation | work which connects and isolate | separates a trunk line and a branch line without a hindrance with the coupler which has generally spread. .

  The indirect hot wire working tool according to the present invention includes a pair of plate-like connector portions each having a through hole formed in an intermediate portion thereof, and spans between the through holes of the pair of connector portions. A pair of bolts projecting to the outer surface side of the shaft and having the tip end of the shaft projecting to the outer surface of the other connector portion, and being fastened, tightened or loosened to the tip end of the shaft portion of the bolt. A nut that narrows or widens one end of the connector part, a washer member that externally fits the shaft of the bolt between the nut and the other connector part, and is attached to the other end part of the pair of connector parts A tool for indirect hot-line work that holds a connector provided with a spring member that is biased so as to separate one end of the pair of connector portions, or a head of a bolt of the connector or A receiving part for fitting the washer member is formed on one end side, A side plate portion in which a through hole is formed in the intermediate portion, a receiving portion for fitting the washer member of the connector or the head of the bolt is formed on one end portion side, and a side plate portion in which the through hole is formed in the intermediate portion A bridging portion that is bridged on the other end side of both side plate portions facing each other so that the receiving portions and the through holes of the both side plate portions face each other, and maintains a constant interval on the other end side side; A bolt that spans between the through holes of the both side plate portions, and the tip portion of the shaft portion protrudes from one of the side plate portions, and is fastened, tightened or loosened to the tip portion side of the shaft portion of the bolt. And a nut that narrows or widens the distance between the one end portions of both side plate portions.

  According to this indirect hot wire working tool, the other end portion of the connector is set between the one end portions of the two side plate portions facing each other. That is, in the connector, the head of the bolt is fitted into the receiving part of one side plate part or the receiving part of the other side plate part, and the washer member is fitted to the receiving part of the other side plate part or the receiving part of one side plate part. It is assumed that In this connector, the branch line is connected in advance with one connector part and a bolt, and is expanded so that one end part side of both the connector parts can hold the trunk line. Therefore, the distance between the two side plate portions of the indirect hot wire working tool is wider than the distance between the two connector portions.

  Then, after the trunk line is positioned between the one end portions of both the connector portions in a state where the interval is widened, the nut of the tool for indirect hot wire work is tightened. Then, the space | interval is narrowed and the one end part of the two side plate parts will be in the state which presses the one end part side of both the connector parts of a connector.

  Then, tighten the nut of the connector. A washer member is fitted to the receiving part of the other or one side plate part of the indirect hot wire working tool, and the nut of the connector is fastened outside the outer surface of the side plate part. Can be tightened. Then, by tightening the nut of the connector, the distance between the one end portions of both connector portions of the connector is narrowed, and the one end portions of both connector portions firmly sandwich the trunk line. In this way, the main line and the branch line are reliably connected.

  Then, the indirect hot-wire work tool is loosened by loosening the nut of the indirect hot-wire work tool, widening the distance between the one end portions of the two side plate portions, and pulling the two side plate portions away from each connector portion of the connector. Remove from the connector.

  Moreover, in order to isolate | separate the connected trunk line and branch line, as the state (including parallel) of the side part part of two side plate parts of the tool for indirect hot wire work widened, either or The head of the bolt of the connecting tool is fitted into the receiving part of the other side plate part, the nut of the connecting tool is fitted into the receiving part of the other or one side plate part, and the other end of the connecting tool is one end part of the two side plate parts. Set to the side.

  And the nut of the tool for indirect hot wire work is tightened, and it is set as the state which pinches | interposes so that the one end part side of two side-plate parts may contact | connect the connector part of a connector. And the nut of a connection tool is loosened, the nut of the tool for indirect hot wire work is loosened, and the space | interval of the one end part side of two side plate parts is expanded. Then, the space | interval by the side of the one end part of the connector part of a coupling tool spreads larger than the diameter of a trunk line.

  When the tool for indirect hot wire work is lowered, the connector comes out from between the two side plate portions, and one end portion of the connector portion of the connector is detached from the main line, so that the main line and the branch line are separated.

  In this way, when connecting the main line and the branch line with the connecting tool, and when separating them, the connecting tool is set on the indirect hot wire working tool, and the nut fastened to the bolt of the connecting tool is tightened. Therefore, the spring member of the connector is not subjected to a large load, and therefore, the spring member is prevented from being detached from the connector portion.

  Further, in the indirect hot wire working tool according to the present invention, it is preferable that a protruding portion protrudes from both side portions of the one side plate portion toward the other side plate portion.

  According to this indirect hot wire working tool, the connecting tool is supported on the protruding portion protruding from one of the side plates, so that a load from the connecting tool is applied to the protruding portion instead of the receiving portion. In addition, even if the washer member of the connector is shifted to a position where it cannot be fitted in the receiving portion of the other side plate, the connector can be stably set. Further, the spring member of the connector is covered not only by the two side plate portions but also by the protruding portion, so that an external force can be prevented from being applied to the spring member.

  Further, in the indirect hot wire working tool according to the present invention, a through hole is formed on the other end side of the both side plate portions, and the bridging portion is a penetration formed on the other end side of the both side plate portions. It is composed of a bolt that spans a hole and a plurality of nuts that are fastened to the bolt, with the bolt head and one nut sandwiching one side plate, and two nuts sandwiching the other side plate It is preferable that the side plate portions are fixed on the other end side.

  According to this indirect hot wire working tool, the bridging portion is constituted by a bolt and a plurality of nuts, whereby the other end portions of the two side plate portions are held so as to maintain a constant interval, and further, the insulation The tip of the Yatco can be gripped so as to pinch the bolt shaft or nut.

  Further, in the indirect hot wire working tool according to the present invention, a bolt spanned in a through hole formed in an intermediate portion of the both side plate portions has a head portion welded to one of the side plate portions. Preferably it is.

  According to this indirect hot wire working tool, the bolt head is welded to one of the side plates, so that when the nut is tightened or loosened, the bolt does not rotate together, and workability is improved. Can be improved.

  In the indirect hot wire working tool according to the present invention, it is preferable that the receiving portion formed in each side plate portion is formed in a U shape in which one end portion side of each side plate portion is opened.

  According to this indirect hot wire working tool, the workability for connecting the trunk line installed above can be improved by forming the receiving portion in a U-shape opened to one end side. That is, since the coupler that connects the branch lines along the trunk line is set to the indirect hot wire working tool lifted from below, the coupler is placed in the receiving portion of the lifted indirect hot wire working tool. It is easy to fit the bolt and the washer member, and even if the force for stopping the connection tool acts by raising the tool for indirect hot wire work and the main line enters between the connector parts of the connection tool, It is possible to prevent the nut from being removed from within the receiving part of the tool for indirect hot wire work.

  According to the present invention, when the interval between the one end portions of the pair of connector portions provided in the commonly used connector is narrowed or expanded, a force is applied to the spring member provided in the connector. Since an indirect hot wire working tool that does not act is provided, it is possible to prevent a problem that the spring member is detached from the connector portion when the main line and the branch line are connected or separated.

It is a perspective view which shows one Embodiment of the tool for indirect hot wire work which concerns on this invention. It is a side view which shows one Embodiment of the tool for indirect hot wire work which concerns on this invention. It is one Embodiment of the tool for indirect hot wire work which concerns on this invention, Comprising: It is a front view which shows the state in the middle of connecting a trunk line and a branch line. It is one Embodiment of the tool for indirect hot wire work which concerns on this invention, Comprising: It is a front view which shows the final state which connects a trunk line and a branch line. FIG. 1 shows a connector that is generally popular, where (a) is a front view and (b) is a side view. It is a side view which shows the state which attached the connection tool to the conventional tool for indirect hot wire work (connector support tool). It is the schematic which shows the state which connects a branch line to a trunk line with a coupling tool.

  One embodiment of an indirect hot wire working tool according to the present invention will be described with reference to FIGS. This indirect hot wire working tool (hereinafter referred to as “connector support tool”) connects the main line 1 and the branch line 2 with the generally popular connector 100 shown in FIG. Used to separate the trunk line 1 and the branch line 2 connected by the tool 100.

  As shown in FIG. 1, the connector supporter includes a first side plate portion 10 and a second side plate portion 20 that face each other in parallel or substantially in parallel in an initial state, and one end portion of the first side plate portion 10 ( The connector 100 is set to be sandwiched between the upper end portion 10a side in the illustrated use state and the one end portion 20a (upper end portion in the illustrated use state) side of the second side plate portion 20.

  The first side plate portion 10 forms a receiving portion 11 into which the head portion 141a of the bolt 141 or the washer member 150 of the connector 100 is fitted in one end portion 10a, and the other end portion (lower end portion in the illustrated use state) 10b and the middle. The through holes 12 and 13 through which the shaft portions 31b and 41b of the bolts 31 and 41 pass are formed in the portion 10c, respectively.

  Further, the second side plate portion 20 forms a receiving portion 21 into which the washer member 150 of the connector 100 or the head portion 141a of the bolt 141 is fitted at one end portion 20a, and the other end portion (lower end portion in the illustrated use state) 20b. And the through-holes 22 and 23 which the axial parts 31b and 41b of the volt | bolts 31 and 41 penetrate are formed in the intermediate part 20c, respectively.

  The receiving portions 11 and 21 formed on the first and second side plate portions 10 and 20 are formed in a U-shape opened to the one end portions 10a and 20a, and are formed between the two teeth 11a and 11b; 21a and 21b. Grooves 11c and 21c are formed in the groove. One tooth 11a, 21a is formed longer than the other tooth 11b, 21b, and the head 141a and the washer member 150 of the bolt 141 are guided by the one tooth 11a, 21a and are easily fitted in the receiving portions 11, 21. Has been.

  A shaft portion 31b of a bolt (hereinafter referred to as “fixing bolt”) 31 penetrates through the through holes 12 and 22 formed on the other end portions 10b and 20b of the first and second side plate portions 10 and 20. The first and second side plate portions 10, 20 are connected by a plurality of (three in the drawing) nuts 32, 32, 32 (hereinafter referred to as “fixing nuts”) fastened to the fixing bolt 31. The width on the other end 10b, 20b side is kept constant.

  However, a plain washer 33 is interposed between the head 31 a of the fixing bolt 31 and the first side plate portion 10 that are located on the outer surface side of the first side plate portion 10. A fixing nut 32 is fastened to the inner side surface of the first side plate portion 10 via a flat washer 33. Further, fixing nuts 32, 32 are fastened to the outer surface side and the inner surface side of the second side plate portion 20 via plain washers 33, 33.

  In this manner, the fixing bolt 31 is fastened to the fixing nut 32 via the plain washer 33, so that the fixing nut 32 is not loosened. Further, the plain washer 33 is made larger than the head of the fixing bolt 31 and the outer diameter of the fixing nut 32, and the first and second side plate portions 10, 20 are formed from the fixing bolt 31 and the fixing nut 32. Instead of concentrated load, distributed load is applied.

  The bridge portion 30 is provided by the fixing bolt 31, the fixing nut 32, and the plain washer 33. However, the bridging portion 30 may not have a flat washer. In any case, the bridging portion 30 is provided in such a length that the connector 100 can be sandwiched between the first side plate portion 10 and the second side plate portion 20.

  Then, a shaft portion 41b of a bolt (hereinafter referred to as “operation bolt”) 41 passes through the through holes 13 and 23 formed in the intermediate portions 10c and 20c of the first and second side plate portions 10 and 20, One end 10a of the first side plate 10 and one end of the second side plate 20 are tightened or loosened by tightening or loosening a nut 42 (hereinafter referred to as "operation nut") that is fastened to the operation bolt 41. The interval with the portion 20a can be narrowed or expanded.

  When the distance between the one end portion 10a of the first side plate portion 10 and the one end portion 20a of the second side plate portion 20 is narrowed, both or one of the first side plate portion 10 and the second side plate portion 20 is inclined. . Therefore, the through holes 13 and 23 formed in the intermediate portions 10c and 20c of the first and second side plate portions 10 and 20 are arranged so that the shaft portion 41b of the operation bolt 41 can relatively move. Slightly formed in a long hole.

  A washer 43 is interposed between the head 41 a of the operation bolt 41 and the outer surface of the first side plate portion 10. Further, the operation bolt 41 is fixed by a nut 44 on the inner surface side of the first side plate portion 10. All or any of the head 41a, the washer 43, and the nut 44 of the operation bolt 41 is fixed to the first side plate portion 10 by welding or the like.

  And the front-end | tip part of the axial part 41b of the bolt 41 for operation protrudes from the outer surface of the 2nd side plate part 20, and the nut 42 for operation is fastened. However, between the operation nut 42 and the outer side surface of the second side plate portion 20, a spring washer 45 for fitting the shaft portion 41 b of the operation bolt 41 is interposed. Further, the thread on the tip edge of the shaft portion 41b of the operation bolt 41 is crushed so that the operation nut 42 does not come off from the shaft portion 41b of the operation bolt 41 even if the operation nut 42 is loosened too much.

  Further, projecting portions 50, 50 projecting from both side portions toward the second side plate portion 20 are provided on the intermediate portion 10 c of the first side plate portion 10. Even if the first side plate portion 10 and / or the second side plate portion 20 are inclined, the lengths of the protrusion portions 50 and 50 are set so that the tip portions of the protrusion portions 50 and 50 do not collide with the second side plate portion 20. Is set.

  Although not shown, projecting portions 50 and 50 that project from the second side plate portion 20 toward the first side plate portion 10 may be provided. In any case, the stepped portions 110d and 120d of the connector 100 are supported on the protruding portions 50 and 50.

  The connector support is configured as described above, and the method of use will now be described with reference to FIGS.

  First, a method for connecting the branch line 2 to the trunk line 1 will be described. The distal end portion of the branch line 2 is attached to the connector 100 as shown in FIG. 5 and is connected to the connecting main line 1 as shown in FIG. 7 by a stray link tongue (not shown). The connector 100 is positioned in the vicinity of the site where the core wire 1a is exposed by being peeled off.

  As shown in FIG. 3, the connector 100 to which the distal end portion of the branch line 2 is attached is larger than the outer diameter of the trunk line 1 with the one end portions 110 a and 120 a side of the first and second connector portions 110 and 120 facing upward. The other end portions 110b and 120b are spread downward.

  On the other hand, as shown in FIG. 3, the connector supporter is in a state in which the first side plate portion 10 and the second side plate portion 20 are parallel to each other or the one end portions 10a and 20a side are slightly expanded to face each other. Then, the insulating yoke 5 attached to the distal end portion of the insulating operation rod 4 includes the shaft portion 31b of the fixing bolt 31 that is the bridging portion 30 of the coupler support and the fixing nut 32 fastened to the fixing bolt 31. Let it be in a gripping state.

  Then, when the insulating operation rod 4 is lifted, the connecting tool support is brought closer to the connecting tool 100 and further raised. Then, the connector 100 is set to the one end portions 10a and 20a of the first and second side plate portions 10 and 20 of the connector support.

  That is, the step portions 110d and 120d of the first and second connector portions 110 and 120 of the connector 100 are supported on the protrusions 50 and 50 of the connector support tool, and the head 141a of the bolt 141 is the first side plate. The washer member 150 of the connector 100 is fitted in the receiving part 21 of the second side plate part 20.

  Since the receiving portions 11 and 21 are open to the one end portions 10a and 20a, and the one teeth 11a and 21a are longer than the other teeth 11b and 21b, the bolt 141 and the washer member 150 of the connector 100 are the receiving portions. 11 and 21 are easy to enter.

  Further, the tip end portion of the shaft portion 41 b of the bolt 141 of the connector 100 protrudes from the outer surface of the second side plate portion 20, and the nut 142 is positioned at a position slightly spaced from the outer surface of the second side plate portion 20. It is concluded. The spring member 130 of the connector 100 set in this way is covered inside the two protrusions 50 and 50.

  And the core wire 1a of the trunk line 1 is pinched | interposed by the one end part 110a, 120a side of the 1st, 2nd connector part 110,120 of the connection tool 100 by raising the insulation operation stick | rod 4. FIG. When the core wire 1a of the trunk line 1 hits the contact portion on the inner surfaces of the first and second connector portions 110 and 120 of the connector 100, the rising connector 100 is pressed down.

  Moreover, since the receiving parts 11 and 21 formed in the 1st and 2nd side plate parts 10 and 20 of a connector support tool are opened in the one end part side, ie, the trunk line 1 side, in the receiving parts 11 and 21 Therefore, the bolt 141 and the washer member 150 of the connector 100 are not detached.

  Then, by tightening the operation nut 42 fastened to the operation bolt 41 of the coupler support tool with, for example, a ratchet, the intermediate portion 10c of the first side plate portion 10 and the intermediate portion 20c of the second side plate portion 20 Reduce the interval. Since the head 41a of the operation bolt 41 is fixed to the first side plate portion 10 by welding or the like, the operation nut 42 can be tightened without the operation bolt 41 rotating together.

  Even if the ratchet or the like is misaligned due to an operation of the ratchet or the like, the ratchet or the like hits the projecting portions 50 and 50, so that no impact force is applied to the spring member 130 of the connector 100.

  And the 1st side board part 10 and the 2nd side board part 20 become narrow posture by narrowing the space | interval of the intermediate parts 10c and 20c, and the space | interval by the side of the one end part 10a and 20a is narrowed. . Then, the space | interval of the 1st connector part 110 of the connector 100 and the one end part 110a, 120a side of the 2nd connector part 120 is also narrowed, and the holding parts 110e and 120e will be in the state which pinches | interposes the trunk line 1 lightly.

  Then, the nut 142 fastened to the bolt 141 of the connector 100 is fastened by, for example, a ratchet. The distance between the first side plate portion 10 and the one end portion 10a, 20a side of the second side plate portion 20 is reduced, and the interval between the second side plate portion 20 and the nut 142 of the connector 100 is increased. The nut 142 can be tightened.

  By tightening the nut 142, as shown in FIG. 4, the distance between the first connector part 110 of the connector 100 and the one end part 110a, 120a side of the second connector part 120 is further narrowed, and the holding part 110e. , 120e holds the main line 1 firmly.

  The operation of tightening the operation nut 42 fastened to the operation bolt 41 of the coupler support tool and the work of tightening the nut 142 fastened to the bolt 141 of the coupler 100 may be performed alternately. After tightening the operation nut 42 until the first and second side plate portions 10 and 20 are in the final inclined posture, the nut 142 fastened to the bolt 141 of the connector 100 may be tightened.

  In this way, the trunk line 1 and the branch line 2 are connected by the connector 100. In the operation of connecting the trunk line 1 and the branch line 2, the first connector portion 110 and the second connector portion 120 of the connector 100 are connected to the first side plate portion 10 and the second side plate portion 20 of the connector support tool. By continuing to be sandwiched between the spring members 130, no load is applied to the spring members 130, and therefore, the spring members 130 are not detached from the connector portions 110 and 120.

  And since the 1st side-plate part 10 and the 2nd side-plate part 20 have pinched | interposed the connection tool 100, the connection tool support tool loosens the nut 42 for operation, and / or the 1st side-plate part 10 of the inclination attitude | position, and / or. After the interval on the one end portion side of the second side plate portion 20 is widened, the insulating operation rod 4 to which the insulating yoke 5 holding the bridging portion 30 is attached is pulled down. Then, the connection tool support is removed from the connection tool 100 connecting the trunk line 1 and the branch line 2.

  In addition, when it was difficult to remove the connector support from the connector 100, the operation nut 42 was further loosened to further increase the distance between the first side plate portion 10 and the one end portion 10a, 20a side of the second side plate portion 20. As a state, the insulating operation rod 4 is pulled down. Moreover, a series of work is complete | finished by removing the stray link tong which makes the branch line 2 along the trunk line 1. FIG.

  Next, a method for separating the main line 1 and the branch line 2 connected by the connector 100 will be described. A state in which the vicinity of the tip of the branch line 2 and the trunk line 1 are held in advance by a stray link tong. And as for the connector support tool, the insulating Yatco 5 grasps the bridge | crosslinking part 30 as the state (including parallel) the one end parts 10a and 20a side of the 1st side board part 10 and the 2nd side board part 20 were expanded. The insulating operation rod 4 with the insulating yarn 5 attached to the tip is lifted.

  And it is set as the state which set the connector 100 to the one end parts 10a and 20a side of the 1st side board part 10 and the 2nd side board part 20 of a connector support tool. That is, the stepped portions 110 d and 120 d of the connector 100 are supported by the protruding portions 50 and 50 protruding from the first side plate portion 10, and fastened to the head 141 of the bolt 141 of the connector 100 and the bolt 141. The nut 142 is fitted into the receiving portions 11 and 21 of the first side plate portion 10 and the second side plate portion 20.

  Then, the operation nut 42 fastened to the operation bolt 41 of the coupler support tool is tightened by the ratchet, and the first side plate portion 10 and / or the second side plate portion 20 is set in the inclined posture, and the one end portions 10a, 20a. Reduce the distance between the sides. Then, the first connector portion 110 and the second connector portion 120 of the connector 100 are sandwiched so as to be in close contact with the first side plate portion 10 and the second side plate portion 20, and the second side plate portion 20 is received. The washer member 150 of the connector 100 is fitted in the part.

  Then, the nut 142 of the connector 100 is loosened by a ratchet so that the first connector portion 110 of the connector 100 and the one end portions 110a and 120a of the second connector portion 120 can be separated. However, both end portions 10a and 20a of the first side plate portion 10 and the second side plate portion 20 of the connector support tool sandwich the first connector portion 110 and the second connector portion 120 of the connector 100. The one end portions 110a and 120a are not separated from each other.

  And the operation nut 42 of a connection tool support is loosened with a ratchet, and the space | interval of each end part 10a, 20a side of the 1st side board part 10 and the 2nd side board part 20 is expanded. Then, since the nut 142 is loosened, the connecting tool 100 has the first connector part 110 and the one end part 110a, 120a side of the second connector part 120 on the first side plate part 10 and the second side by the spring member 130. It spreads along the inner surface of the side plate portion 20.

  When the distance between the first connector part 110 and the one end part 110a, 120a side of the second connector part 120 is narrower than the core line 1a of the trunk line 1, the operation nut 42 of the connector support tool is further loosened, The space | interval of each edge part 10a, 20a side of the side plate part 10 and the 2nd side plate part 20 is expanded further. And if the space | interval of the one end parts 10a and 20a side of the 1st connector part 110 and the 2nd connector part 120 expands larger than the outer diameter of the core wire 1a of the trunk line 1, it will grasp the bridge | crosslinking part 30 of a connector support tool. The insulation operating rod 4 with the insulation yoke 5 attached to the tip is pulled down.

  Then, the trunk line 1 comes off from between the first connector part 110 and the second connector part 120 of the connector 100. In addition, since the vicinity of the tip of the branch line 2 is held by the trunk line 1 by the stray link tong, the connection tool support is detached from the connection tool 100, and the connection tool 100 hangs down by its own weight. It becomes a state.

  In this way, the trunk line 1 and the branch line 2 connected by the coupler 100 can be separated. In this work, since the first side plate portion 10 and the second side plate portion 20 of the work tool continue to sandwich the first and second connector portions 110 and 120 of the connector 100, no load is applied to the spring member 130. The spring member 130 is not detached from the first and second connector portions 110 and 120.

  The present invention can be variously modified without being limited to the above embodiment. For example, in the method of setting the connector 100 to the connector support tool, the washer member 150 of the connector 100 is fitted to the receiving portion 11 of the first side plate portion 10, and the connector is connected to the receiving portion 21 of the second side plate portion 20. A head 141 of 100 bolts 141 may be fitted.

  Further, the connector support tool projects a protruding portion 50 from one side portion of the first side plate portion 10 toward the second side plate portion 20, and is connected to the second side plate portion 20 from the other side portion. The protruding portion 50 may be provided toward the one side plate portion 10, or the protruding portions 50 and 50 may not be provided at all.

  The bridging portion 30 spanned between the other end portions 10b, 20b of the first side plate portion 10 and the second side plate portion 20 is not a fixing bolt 31 or a fixing nut 32 but a plate-like portion. Also good. In other words, the elongated plate-like body may be bent into a U shape, and the first side plate portion 10, the bridging portion 30, and the second side plate portion 20 may be integrally formed continuously. In this case, naturally, the through holes 12 and 22 are not formed on the other end portions 10 b and 20 b of the first side plate portion 10 and the second side plate portion 20.

  Further, the head 41a of the operation bolt 41 may be fixed so as not to rotate together with a wedge or the like without being welded, or holds the head 41a of the operation bolt 41 even if not fixed. By using a tool, it may be prevented from co-rotating. Further, the operation bolt 41 may be one in which a nut is fastened to one of both nut bolts.

  In addition, the receiving portions 11 and 21 are preferably formed in a U shape opened to one end side of the first side plate portion 10 and the second side plate portion 20 from the viewpoint of workability, but the first side plate portion 10 and the second side plate part 20 may be formed in a lateral L shape that opens to the same side face part side and is bent to the other end part partway.

1 ………… Main line 2 ………… Branch line 10 ………… (First) side plate portion 10a …… One end portion 10c …… Intermediate portion 11 ………… Reception portion 12 ………… Through hole 13 ………… Through hole 20 ......... (second) side plate part 20a ....... one end 20c .... intermediate part 21 .... receiving part 22 .... through hole 23 .... through hole 30 .... bridge part 31 .... ... (for fixing) bolt 32 ......... (for fixing) nut 41 ......... (for operation) bolt 42 ......... (for operation) nut 50 ......... projecting part 100 ... coupling tool 110 ... (first Connector portion 110a ... one end 120 ... (second) connector portion 120a ... other end 130 ... spring member 141 ... bolt 142 ... nut 150 ... washer member

Claims (5)

A pair of plate-like connector parts with a through hole formed in the middle part, and spanned between the through holes of the pair of connector parts, with the head protruding to the outer surface side of one connector part, and the tip of the shaft part A bolt whose side protrudes to the outer surface side of the other connector portion and the bolt is fastened or tightened or loosened to a tip end side of the bolt portion, thereby narrowing the interval between the one end portions of the pair of connector portions, or A nut that expands, a washer member that externally fits the shaft portion of the bolt between the nut and the other connector portion, and is attached to the other end portion side of the pair of connector portions, and separates one end portion side of the pair of connector portions A tool for indirect hot-line work that holds a connector provided with a spring member that is biased to allow
A receiving part for fitting the head of the bolt or the washer member of the connector is formed on one end side, and a side plate part having a through hole formed in the intermediate part, and the washer member of the connector or the head of the bolt are fitted. A side plate portion having a receiving portion formed on one end side and a through hole formed in an intermediate portion, and other side plate portions facing each other so that the receiving portions of the both side plate portions and the through holes face each other. Bridged between the end portion side, the bridging portion that maintains a constant distance on the other end side, and the through hole of the both side plate portions, and the tip end portion of the shaft portion from either side plate portion It is provided with a protruding bolt and a nut that is tightened, tightened, or loosened on the tip side of the shaft portion of the bolt, thereby narrowing or expanding the interval on one end side of both side plate portions. Indirect hot-line work tool.   The indirect hot wire working tool according to claim 1, wherein projecting portions are provided so as to project from both side portions of the one side plate portion toward the other side plate portion.   A through hole is formed on the other end portion side of the both side plate portions, and the bridging portion includes a bolt spanning a through hole formed on the other end portion side of the both side plate portions and a plurality of bolts fastened to the bolt. It is composed of nuts, and the bolt head and one nut sandwich either side plate part, and the two nuts sandwich the other side plate part to fix the both side plate parts on the other end side. The tool for indirect hot wire work according to claim 1 or 2.   4. The bolt spanning through a through hole formed in an intermediate portion of the both side plate portions, the head portion of which is welded to one of the side plate portions. The tool for indirect hot wire work as described in the item.   The indirect hot-wire work tool according to any one of claims 1 to 4, wherein the receiving portion formed in each side plate portion is formed in a U shape in which one end portion side of each side plate portion is opened. .

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