JP2012157149A - Compression apparatus for indirect hot line method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compression apparatus for an indirect hot line method which facilitates work of compressing a connecting sleeve by an indirect hot line method.SOLUTION: The compression apparatus for indirect hot line work of butting two electrical cables within a connecting sleeve and compressing positions of the connecting sleeve on both sides of the butting point to connect the two electrical cables includes: a rod-shaped rotor 72 rotatable by a handle mechanism section 74 disposed on an apparatus base end side; a vertically movable section 16 vertically movable in a higher position on an axis of the rod-shaped rotor 72 by receiving rotating force of the rod-shaped rotor 72; and an upper sleeve receiving section 14 opposed to the vertically movable section 16 in a higher position on the axis. The connecting sleeve is compressed between the vertically movable section 16 and the upper sleeve receiving section 14 by a lifting movement of the vertically movable section 16.

Description

  The present invention relates to a compression device for an indirect hot wire method used in an operation of connecting an electric wire and an electric wire using a connecting sleeve by an indirect hot wire method.

  In the distribution path, there is a case where connection work between the electric wires is required due to the transformer replacement work or the like. For example, a high-voltage underline is an electric wire for drawing in a transformer from a high-voltage line installed between utility poles. When the transformer is suspended, the high-voltage underline and the primary-side electric wire of the transformer are connected. Connection work is required. This connection operation is usually performed by using a connection sleeve, butting the electric wires together in the connection sleeve, and compressing both sides of the abutted portion from the outside of the connection sleeve. A compression device used for this connection work is disclosed in Patent Document 1, for example.

  FIG. 6 is a schematic perspective view illustrating a state in which connection work is performed using the compression device 30 disclosed in Patent Document 1. The electric wire 84a and the electric wire 84b are inserted into the connecting sleeve 82, the connecting sleeve 82 is compressed by the compression device 30, and the electric wires 84a and 84b are connected to each other. The connecting sleeve 82 is compressed at two places on both sides of the place where the electric wires 84a and 84b are brought together, but one place on the transformer side, that is, the electric wire 84a side on the primary side of the transformer is out of power. FIG. 5 shows a state in which the remaining one portion, that is, the high-pressure underline 84b side is compressed by the indirect hot wire method.

  The compression device 30 has a compression pliers 34 attached to the distal end portion of the insulating operation rod 32. In the work, a hook portion 36 attached to the tip portion of another insulating operation rod 32 is used. In the compression pliers 34, a stationary member 38 and a compression member 40 are pivotally supported, and a receiving portion 42 and a compression portion 44 are provided at the distal ends of the respective members. A transmission member 46 is provided continuously to the compression member 40. Further, a traction member 48 is provided continuously to the transmission member 46. The hook member 36 is hooked on the ring member 50 provided at the tip of the traction member 48 and pulled in the direction of arrow A. By closing the compression member 40, the connection sleeve 82 sandwiched between the compression portion 44 and the receiving portion 42 is compressed.

  The above connection work is usually performed by two workers. One worker holds the yatco 80 in both hands, and holds the electric wires 84a and 84b with the yatco 80 from below. The YATCO 80 is provided with a gripping portion 80a for gripping an electric wire at the distal end portion of the insulating operation rod 32, and operates an operation portion (not shown) provided near the lower end portion of the insulating operation rod 32. Thus, the gripping portion 80a is opened and closed, and the electric wires 84a and 84b can be gripped. The other operator operates the connecting sleeve 82 into which the high-voltage underline 84b is inserted so as to be correctly set to either the receiving portion 42 of the stationary member 38 or the compressing portion 44 of the compressing member 40 described above. However, the connecting sleeve 82 is compressed by operating the insulation operating rod 32 having the hook portion 36 attached to the tip in the direction of arrow A. The compression pliers 34 are configured so that the compression pliers 34 do not close unless the pulling member 48 is pulled in the direction of arrow A with a certain strong force.

  On the other hand, Patent Document 2 discloses a remotely operated compression pliers 60 that emphasizes safety and workability when compressing a sleeve or the like. FIG. 7 shows an explanatory diagram of the remote-operated compression pliers 60. The remotely operated compression pliers 60 include an insulating operation rod (remote operation rod) 62 having a rotating shaft 72 and a pliers body 68. The rotary shaft 72 is configured to be rotatable by an upper bridge 80, a front gripping portion 84, and a lower bridge 82 that also constitute the insulating operation rod 62, and a screw body 64 is pre-connected to the tip of the rotary shaft 72. The screw body 64 is coupled within the portion 86 and is rotated in conjunction with the rotary shaft body 72. A stopper 76 that stops the rotation of the rotary shaft 72 is provided in the tip connecting portion 86. A handle mechanism 74 is provided between the middle gripping portion 88 attached to the lower bridge 82 and the manual operation knob 75 at the lowermost lower end thereof, and the rotary shaft 72 can be rotated by the handle 74a. It is configured.

  The screw body 64 is formed with a forward screw portion 64a upward from the central portion and a reverse screw portion 64b downward from the central portion. And nut part 65a, 65b screwed to each screw part 64a, 64b is provided, and it has the structure by which the handle | groove part 66a, 66b of the pliers main body 68 was attached to this nut part 65a, 65b.

  With this configuration, when the rotary shaft 72 of the insulating operation rod 62 is rotated by operating the handle 74a of the handle mechanism 74, the screw body 64 rotates and is screwed into the forward screw 64a and the reverse screw 64b. The nut portions 65a and 65b are screwed in or unscrewed, whereby the handle portions 66a and 66b of the pliers body 68 are opened and closed. When the handle portions 66a and 66b are opened and closed, the tooth portion 70 is opened or closed. Therefore, when the rotating shaft 72 is rotated in the direction in which the tooth portion 70 is closed in a state where the connecting sleeve is set on the tooth portion 70, the connecting sleeve can be compressed. The rotating shaft 72 can be rotated not only by the handle 74a but also by manually rotating the manual operation knob 75 of the rotating shaft 72.

JP 2008-125291 A JP 2000-166038 A

  In the connection work using the compression device 30 of Patent Document 1 described above, when the connection sleeve 82 is compressed, the hook portion 36 at the tip of the insulating operation rod 32 is hooked on the ring member 50 of the pulling member 48, Although it is necessary to pull downward, this pulling operation requires a certain amount of force as described above, so that the burden on the workers supporting the wires 84a and 84b is large and the work is in progress. In some cases, the electric wires 84a and 84b may come off the YATCO 80. Moreover, since the operator who operates the compression apparatus 30 is not the operation | work which looks at the compression part 44 and the receiving part 42 of the compression apparatus 30 in front, but generally becomes an operation | work from the downward direction of the electric wires 24a and 24b, an operation | work is difficult. Further, if the pulling direction is not properly determined, the force is not properly applied to the compression portion 44 and the receiving portion 42 of the compression device 30, and the connection sleeve 82 may not be appropriately compressed. Therefore, the connection work requires excessive attention and a long time.

  Further, the remote-operation compression pliers 60 of Patent Document 2 can compress the connection sleeve by correctly setting the connection sleeve on the tooth portion 70 and rotating the rotary shaft 72 by the handle 74a. However, since the tooth portion 70 of the pliers main body 68 is not on the extension of the rotating shaft body 72 of the insulating operation rod 62 but is separated from the axis of the rotating shaft body 72 by a predetermined distance in the vertical direction, it is connected to the tooth portion 70. It is not easy to set and hold the sleeve. That is, it is not easy for the operator who operates the compression pliers 60 for remote operation to set the connection sleeve in a compressible state. In addition, the operator who supports an electric wire on both sides of a connection sleeve becomes less burden than the case where the compression apparatus of patent document 1 is used.

  This invention is made | formed in view of the said subject, The objective is providing the compression apparatus for indirect hot wire construction methods which can achieve the simplification of the compression operation | work of the connection sleeve by an indirect hot wire method. It is in.

In order to achieve the above object, the compression device for an indirect hot wire method according to claim 1,
In an indirect hot-wire work compression apparatus, in which two electric wires are butted in a connecting sleeve, and the positions of both sides of the abutting portion of the connecting sleeve are compressed to connect the two electric wires. A rod-shaped rotating body that is rotated by an operating means provided; a lifting unit that receives the rotational force of the rod-shaped rotating body and moves up and down at an upper position on the axis of the rod-shaped rotating body; and the shaft with respect to the lifting unit A sleeve upper receiving portion fixed in opposition to the upper position on the line, and the connecting sleeve is compressed between the sleeve upper receiving portion and the lifting portion by a lifting operation. To do.

  According to this configuration, the elevating part for compressing the connecting sleeve and the sleeve upper receiving part are arranged above the axis of the rod-shaped rotating body. Therefore, the operator (operator) can work on the axis of the rod-like rotating body of the insulating operation rod held by the operator, and can easily set the connecting sleeve in a compressible state. In addition, the compression is performed by the elevating part that moves upward by the rotation of the rod-shaped rotating body in a state where the connecting sleeve is received from above by the sleeve upper receiving part or is engaged with the elevating part. In other words, the operator can work on the axis of the rod-like rotating body of the insulated operation rod held by the operator, and the connection sleeve and the electric wire are not subjected to a downward pulling force, so that the operator holding the electric wire can be operated. The burden of is light. Accordingly, the compression work of the connecting sleeve can be facilitated.

The compression device for indirect hot wire construction method according to claim 2 is the compression device for indirect hot wire construction method according to claim 1,
One or both of the opposing surfaces of the sleeve upper receiving part and the lifting part, facing the both side positions when the connecting sleeve is set between the sleeve upper receiving part and the lifting part Further, a projection is provided. Therefore, it is possible to simultaneously compress two places of the connecting sleeve, that is, both sides of the butt of the electric wire, by a single raising / lowering operation of the raising / lowering portion, thereby greatly reducing the time for connecting the electric wire using the connecting sleeve. Can do.

The indirect hot wire method compressing device according to claim 3 is the indirect hot wire method compressing device according to claim 2,
A substantially arc-shaped recess that fits when the connecting sleeve is set between the sleeve upper receiving portion and the elevating portion is formed on the distal end surface of the protruding portion. Accordingly, during the work, the compression sleeve can be compressed with the connection sleeve to be compressed stored in the concave portion of the sleeve upper receiving part or the lifting part, so that the connection sleeve is appropriately compressed without being displaced during the work. The Rukoto.

The indirect hot wire method compressing device according to claim 4 is the indirect hot wire method compressing device according to any one of claims 1 to 3,
A torque amplifying means for amplifying a rotational force by the operating means is provided between the rod-shaped rotating body and the elevating part. That is, it is possible to accurately assist the situation in which the connecting sleeve is compressed only by raising the elevating part without using the arm length, lever, or the like. Therefore, the compression operation can be further facilitated.

  According to the compression device for an indirect hot wire method of the present invention, it is possible to compress the connecting sleeve above the axis of the rod-like rotating body of the held insulating operation rod. Therefore, the set for compressing the connecting sleeve is facilitated, and further, since the downward pulling force is not applied to the connecting sleeve and the electric wire, the burden on the operator holding the electric wire can be reduced. . Therefore, the compression work of the connecting sleeve is facilitated, and the work cost is reduced and the work safety is achieved.

It is a schematic front view of the compression apparatus for indirect hot wire construction concerning an embodiment of the invention. It is an expansion perspective view of the compression part of FIG. However, the tooth-like convex portions provided in the sleeve upper receiving portion and the lifting portion are one set, and a through hole is formed in the base portion of the sleeve upper receiving portion. It is an expansion perspective view of the compression part of FIG. However, there is one set of tooth-like convex portions provided on the sleeve upper receiving portion and the lifting portion, and a screw portion that is screwed to the bolt-like member is formed at the base of the sleeve upper receiving portion. It is an expansion perspective view of the compression part of FIG. However, there are two sets of tooth-like convex portions provided on the sleeve upper receiving portion and the lifting portion, and a through hole is formed at the base of the sleeve upper receiving portion. It is a schematic perspective view which shows the mode of the connection operation | work of the electric wire using the compression apparatus for indirect hot wire construction of FIG. However, there are two sets of tooth-like convex portions provided on the sleeve upper receiving portion and the lifting portion, and a screw portion that is screwed with a bolt-like member is formed at the base of the sleeve upper receiving portion. It is a schematic perspective view which shows a mode that the connection operation of an electric wire is performed using the compression apparatus currently disclosed by patent document 1. FIG. It is explanatory drawing of the remote-operation type compression pliers currently disclosed by patent document 2. FIG.

  Hereinafter, an embodiment of a compression device for an indirect hot wire method of the present invention will be described in detail with reference to the drawings. FIG. 1: shows the front view of the compression apparatus for indirect hot wire construction methods. FIG. 2 is an enlarged perspective view of the elevating part and the sleeve upper receiving part of the indirect hot wire method compression apparatus shown in FIG.

  The indirect hot-wire method compression apparatus 10 shown in FIG. 1 has a rotating shaft body 72 (in this embodiment, “bar-like rotation” shown in FIG. An insulating operation rod 62 having a body "72" is used. The torque amplifying means 18 is connected to the rod-like rotator 72 of the insulating operation rod 62, and the compression part 12 for compressing the connecting sleeve is attached to the torque amplifying means 18 via the rotation transmission part 19. The compression unit 12 includes an elevating unit 16 and a sleeve upper receiving unit 14. Hereinafter, each component will be described in detail.

  The rod-like rotator 72 is rotatably inserted into the upper bridge 80 and the lower bridge 82 connected by the front gripping portion 84. The rod-like rotator 72 is rotated about the axis by a handle mechanism 74 provided at the lower part of the insulating operation rod 62. The configuration of the handle mechanism 74 is the same as that described in the description of FIG. 6 of the background art.

  A tip connecting portion 86 is attached to an upper portion of the upper bridge 80, and the rod-like rotating body 72 and the rotating shaft body 18 b of the rotation input portion 18 a of the torque amplifying means 18 are connected in the tip connecting portion 86. The tip connecting portion 86 is provided with a stopper 76, and the stopper 76 stops the rotation of the rod-like rotating body 72 and the rotating shaft body 18b connected thereto. Further, another rotation shaft body (not shown) is provided as a rotation output portion of the torque amplifying means 18, and this rotation shaft body is connected to the rotation transmission portion 19, and will be described later on the upper end side of the rotation transmission portion 19. A bolt-shaped member 16 a is attached, and the bolt-shaped member 16 a rotates with the rotation of the rotation transmitting unit 19.

  The torque amplifying means 18 changes the ratio between the input rotation speed and the output rotation speed when transmitting the rotation of the rod-shaped rotating body 72 to the rotation transmitting portion 19, and the pressing force (compressive force) applied to the connecting sleeve. ). An example of the torque amplifying means 18 is a gear mechanism in which the gear ratio is changed. Therefore, it is possible to accurately compress the connecting sleeve even in a situation where the connecting sleeve is compressed on the rotating shaft without using an arm length, a lever or the like as in the present embodiment.

  FIG. 2 shows details of the compression unit 12, which includes a sleeve upper receiving portion 14 and an elevating portion 16. The sleeve upper receiving portion 14 includes a base portion 14a provided with a through hole 14f, an extension portion 14b formed continuously extending from the base portion 14a and extending substantially in parallel with the central axis of the through hole 14f, and an extension portion 14b. It has the front-end | tip part 14c formed by curving so that it may cross | intersect the central axis of the through-hole 14f above the through-hole 14f following the part 14b. A tooth-like convex portion 14d is provided below the tip portion 14c, and a substantially arc-shaped concave portion 14e is formed on the tip surface of the tooth-like convex portion 14d.

  The raising / lowering part 16 has the bolt-shaped member 16a and the raise front-end | tip part 16b formed in the front-end | tip part of the bolt-shaped member 16a. A tooth-like convex portion 16c is provided above the rising tip portion 16b, and a substantially arc-shaped concave portion 16d is formed on the tip surface of the tooth-like convex portion 16c. Here, the rising tip portion 16b is configured to be just opposite to the tip portion 14c of the sleeve upper receiving portion 14 described above. That is, as will be described later, the connecting sleeve is sandwiched between the substantially arc-shaped recesses 14e and 16d. The lower end portion of the bolt-shaped member 16 a is screwed into a screw portion formed in the rotation transmitting portion 19 through a through hole 14 f formed in the base portion 14 a of the sleeve upper receiving portion 14.

  With this configuration, when the connecting sleeve is locked to the concave portion 16d of the rising tip 16b of the lifting / lowering portion 16, the lifting / lowering portion 16 is brought into a non-rotating state, and the rotation of the rod-shaped rotating body 72 is transmitted to the rotation transmitting portion 19 to rotate. If the transmission part 19 rotates, the raising / lowering part 16 will move up and down in connection with this. The bolt-shaped member 16 a is configured such that the rotation can be stopped by the stopper 16 provided at the base portion 14 a of the sleeve upper receiving portion 14 and the tooth portion 19 a provided at the upper end of the rotation transmitting portion 19.

  FIG. 3 shows another embodiment that enables the elevating unit 16 to move up and down. The difference from FIG. 2 is that a screw portion 14 g that is screwed into the bolt-shaped member 16 a is formed in the base portion 14 a of the sleeve upper receiving portion 14, and the lower tip portion of the bolt-shaped member 16 a is fixed to the rotation transmitting portion 19. In the point. Further, the tip rising portion 16b of the bolt-shaped member 16a is configured to be freely rotatable without being constrained by the bolt-shaped member 16a.

  With this configuration, when the connecting sleeve is locked to the recess 14e of the sleeve upper receiving portion 14, the sleeve upper receiving portion 14 is brought into a non-rotating state, and the rotation of the rod-shaped rotating body 72 is transmitted to the rotation transmitting portion 19, and the rotation transmitting portion. When 19 rotates, the raising / lowering part 16 will move up and down. As in FIG. 2, the bolt-shaped member 16 a can be stopped from rotating by the stopper 16 provided at the base portion 14 a of the sleeve upper receiving portion 14 and the tooth portion 19 a provided at the upper end of the rotation transmitting portion 19. It is configured.

  Therefore, the connecting sleeve includes a tooth-like convex portion 14d provided on the lower surface of the tip portion 14c of the sleeve upper receiving portion 14, and a tooth-like convex portion provided on the upper surface of the rising tip portion 16b of the elevating portion 16. 16c and compressed above the axis of the rod-shaped rotating body 72. Here, since the substantially convex portions 14e and 16d having a substantially arc shape are formed in the respective tooth-like convex portions 14d and 16c, the connecting sleeve is formed in the concave portions 14e and 16d of the sleeve upper receiving portion 14 and the lifting and lowering portion 16, respectively. Thus, the connecting sleeve is appropriately compressed without being displaced during the compression operation.

  FIG. 4 shows a tooth-like convex portion provided at the tip end portion 14c of the sleeve upper receiving portion 14 and a tooth-like convex portion provided at the rising tip portion 16b of the elevating portion 16 so that the two connecting sleeves can be compressed simultaneously. It is an expansion perspective view of the compression part 12 provided with two 16c each. That is, two tooth-like convex portions 14d and 14d are provided on the lower surface of the distal end portion 14c of the sleeve upper receiving portion 14 at a predetermined interval in the lateral direction. Recesses 14e and 14e having substantially arc shapes are formed on the tip surfaces of the respective tooth-like convex portions 14d and 14d. Then, two tooth-like convex portions 16c and 16c are provided at the rising tip portion 16b of the elevating portion 16 at the same horizontal interval as the predetermined interval. Recessed portions 16d and 16d having a substantially arc shape are formed on the tip surfaces of the respective tooth-like convex portions 16c and 16c. Here, the above-mentioned predetermined horizontal interval is the two places on both sides when two wires are inserted into the connecting sleeve and butted against each other, and the two portions on both sides of the butted portion are compressed. Is approximately equal to the position interval. Therefore, since two places of the connecting sleeve can be compressed simultaneously by a single lifting operation of the elevating unit 16, the time for connecting the wires using the connecting sleeve can be greatly shortened.

  FIG. 5 is an explanatory diagram showing a state in which an electric wire is connected using the indirect hot wire compression apparatus of the present embodiment. However, two tooth-like convex portions 14d, 14d, 16c, and 16c are provided on the sleeve upper receiving portion 14 and the elevating portion 16 of the compression portion 12 of the compression device 10 for the indirect hot wire method, respectively. A screw portion 14g that is screwed into the bolt-shaped member 16a is formed on the base portion 14a of the receiving portion 14, and the lower end portion of the bolt-shaped member 16a is fixed to the rotation transmitting portion 19. One worker operates the indirect hot wire method compression apparatus 10 to compress the connecting sleeve 82, and the other worker (auxiliary) inserts the wires 84a and 84b into the connecting sleeve 82 with the YATCO 80. Do the work of gripping.

  First, an operator (operator) holding the compression device 10 for the indirect hot-wire method with the other operator holding the electric wires 84a and 84b with the YATCO 80, moves the connecting sleeve 82 from above to above the sleeve. It is received by the substantially arc-shaped concave portions 14e, 14e of the tooth-shaped convex portions 14d, 14d of the tip portion 14c of the receiving portion 14.

  Then, an operator (operator) who has the compression device 10 for the indirect hot wire construction method turns the handle 74a of the insulating operation rod 62 so that the rising tip portion 16b of the elevating portion 16 of the compression portion 12 is moved to the sleeve upper receiving portion 14. The connecting sleeve 82 is brought close to the lower side surface of the distal end portion 14c of the upper end portion 14c, the tooth-shaped convex portions 14d and 14d of the upper end portion 14c of the sleeve upper receiving portion 14 and the substantially arcuate concave portions 14e and 14e of the elevating portion 16b. Between the tooth-like convex portions 16c and 16c. In this state, the operator who has the indirect hot wire method compression device 10 further turns the handle 74a to apply the pressing force (compression force) amplified by the torque amplifying means 18 to the connecting sleeve 82. The connecting sleeve 82 is compressed at two locations simultaneously. In this way, the electric wire connection operation is completed by one raising operation of the elevating unit 16.

  Since the connecting sleeve 82 is received on the substantially arcuate concave portions 14e and 14e of the tooth-like convex portions 14d and 14d of the sleeve upper receiving portion 14 above the axis of the rod-like rotating body 72, it is easily set in a compressible state. It is possible. In addition, the compression of the connecting sleeve 82 is performed when the rising tip portion 16 b of the lifting and lowering portion 16 is raised above the axis of the rod-shaped rotating body 72. Therefore, since no downward force is applied to the connecting sleeve 82 and the electric wires 84a and 84b, the burden on other workers holding the electric wires 84a and 84b with the YATCO 80 can be reduced. It is possible to prevent a situation in which the gripped electric wires 84a and 84b are detached from the YATCO 52.

  According to the indirect hot wire method compression apparatus 10 of the present embodiment, the connecting sleeve 82 can be compressed above the axis of the rod-shaped rotating body 72, so that the connecting sleeve 82 can be compressed. Can be easily set. Further, in the compression, in the state where the connecting sleeve 82 is received by the sleeve upper receiving portion 14 or the connecting sleeve 82 is locked by the elevating portion 16, the rod-shaped rotating body 72 is rotated to raise the rising tip of the elevating portion 16. Since this is done by raising the portion 16b, no downward pulling force is applied to the connecting sleeve 82 and the electric wires 84a, 84b, and the burden on the operator holding the electric wire is reduced. In addition, since the toothed convex portions 14d and 16c are provided on the sleeve upper receiving portion 14 and the lifting and lowering portion 16 and the substantially arc-shaped concave portions 14e and 16d are provided on the distal end surfaces of the respective toothed convex portions 14d and 16c, The connecting sleeve 82 to be compressed can be easily locked to the sleeve upper receiving portion 14 or the lifting / lowering portion 16, and when the rising tip 16 b rises to compress the connecting sleeve, the connection sleeve 82 is connected. The sleeve is properly compressed without slipping. Therefore, the compression work of the connecting sleeve is facilitated, the cost of the wire connecting work is reduced, and the work safety is ensured.

  Note that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, tooth-like convex portions 14d and 16c are provided on the sleeve upper receiving portion 14 and the elevating / lowering portion 16, but this attachment may be screw fixing or welding. Moreover, although the shape of the raising front-end | tip part 16b formed in the front-end | tip part of the volt | bolt member 16a differs in FIG. 2 and FIG. 3, a shape does not matter in particular.

DESCRIPTION OF SYMBOLS 10 Indirect hot wire method compression apparatus 12 Compression part 14 Sleeve upper receiving part 14c Tip part 14d Tooth-like convex part 14e Concave part 16a Elevating part 16a Bolt-like member 16b Ascending tip part 16c Tooth-like convex part 16e Recess 17 stopper 18 torque amplifying means 19 rotation transmission part 30 compression device 32 insulation operation rod 34 compression pliers 42 receiving part 44 compression part 60 remote operation type compression pliers 64 screw body 68 pliers body 74 handle mechanism part 74a handle 80 Yatsuko 82 connection Sleeve 84a, 84b Electric wire

Claims (4)

In an indirect hot wire working compression apparatus that butts two electric wires in a connecting sleeve, compresses both side positions of the butt portion of the connecting sleeve, and connects the two electric wires.
A rod-like rotating body that is rotated by operating means provided on the apparatus base end side;
An elevating part that receives the rotational force of the rod-shaped rotating body and moves up and down at an upper position on the axis of the rod-shaped rotating body;
A sleeve upper receiving portion fixed to be opposed to the lifting portion at an upper position on the axis, and
A compression apparatus for an indirect hot wire method, wherein the connecting sleeve is compressed with the sleeve upper receiving portion by the ascending operation of the lifting portion.   One or both of the opposing surfaces of the sleeve upper receiving part and the lifting part, facing the both side positions when the connecting sleeve is set between the sleeve upper receiving part and the lifting part The compression apparatus for indirect hot wire construction according to claim 1, further comprising a protrusion.   3. A substantially arc-shaped concave portion that fits when the connecting sleeve is set between the sleeve upper receiving portion and the elevating portion is formed on the distal end surface of the protruding portion. The indirect hot wire method compression apparatus described in 1.   The indirect hot wire method according to any one of claims 1 to 3, wherein a torque amplifying means for amplifying a rotational force by the operating means is provided between the rod-like rotating body and the elevating part. Compression device.

Images