JP2018093578A - Terminal cap for indirect hot wire construction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a terminal cap for indirect hot wire construction, which prevents a core wire of an electric wire from contacting with a pole-mounted apparatus.SOLUTION: A terminal cap 10 comprises a pair of insulation clips 1a, 1b and a pair of shutter plates 2. The insulation clips 1a, 1b include a pair of clip pieces 11, 11 which can freely grip an electric wire W. The clip piece 11 has a groove portion 1d in which the electric wire W can be freely introduced. By use of an insulation operating bar 9 having a pair of freely openable/closable gripping arms 9a, 9b at an end thereof, the pair of clip pieces 11, 11 can be opened/closed. The shutter plate 2 can seal an opening 1k of the groove portion 1d. In a state where the pair of shutter plates 2, 2 are closed with respect to each other, the surrounding area of a terminal of the electric wire W from which a coating Wi is peeled off can be covered with the pair of clip pieces 11, 11, and the end surface of the terminal of the electric wire W can be closed with the pair of shutter plates 2, 2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a terminal cap for indirect hot wire construction. In particular, when an edge line branched from a high-voltage distribution line installed on a utility pole is cut by indirect hot wire operation, the edge of the edge line from which the coating has been peeled can be protected by covering it with an insulator. It is related with the structure of the terminal cap for indirect hot wire construction which can prevent that a core wire contacts a pillar apparatus.

  It is known that there are two types of live line work in which high-voltage distribution lines are distributed in an uninterruptible state: direct hot line method and indirect hot line method. In the direct hot wire construction method, an operator wears protective equipment such as high-pressure rubber gloves and performs power distribution work by directly touching a high-voltage distribution line that is energized. On the other hand, in the indirect hot wire method, an operator can perform power distribution work without directly touching a high-voltage power distribution line that is energized by using an insulating operation rod (hot stick) or the like.

  In general, an insulating operation rod is composed of a long operation rod and a power distribution work tool (hereinafter referred to as a tip tool) attached to the tip of the operation rod. And the insulation operating rod is comprised so that a tip tool can be replaced | exchanged according to a use, such as holding | griping or cutting | disconnecting a high voltage distribution line.

  As an insulating operation rod for gripping such a remotely disposed high-voltage distribution line, an insulating operation rod for remote gripping that can open and close a pair of gripping arms provided at the tip of the insulating operation rod by hand operation, so-called “insulation” Yatko is known. In addition to the work of gripping the electric wire using this insulating operation rod, the work of covering the electric wire with a protective tube, the operation of winding the bind wire around the electric wire, and the like are performed.

  For example, there may be a need for indirect hot-wire work for cutting an edge line (hereinafter referred to as an electric wire) branched from a high-voltage distribution line installed on a utility pole. In this case, the wire coating is peeled at a predetermined length by using an insulating operation rod having a wire sheath peeling tool at the tip.

  Next, two insulating operation rods (so-called stray link tongs) that can grip the electric wire between the fixed jaw and the movable jaw are used to hold both sides of the peeling portion of the electric wire. Next, the center part of the peeling part of an electric wire is cut | disconnected with the cutter for indirect hot wire construction in the state which grasped both sides of the peeling part of the electric wire with the stray link tong.

  Next, it is possible to prevent the core wire of the electric wire from coming into contact with the column equipment by attaching an insulating terminal cap to the end of the electric wire from which the coating has been peeled off and covering the core wire of the electric wire.

  As such a terminal cap, using an insulating operation rod having a pair of openable and closable gripping arms at the tip, it can be safely and securely attached to the wire while always checking the attachment state to the wire. A terminal cap for hot wire construction is disclosed (see, for example, Patent Document 1).

JP 2002-17034 A

  FIG. 12 is a perspective view showing a configuration of a terminal cap for indirect hot wire construction according to the prior art, in which a pair of cap members is opened. FIG. 13: is a longitudinal cross-sectional view which shows the structure of the terminal cap for indirect hot wire construction by a prior art, and is a state figure which opened a pair of cap member. 12 of the present application corresponds to FIG. 1 of Patent Document 1, and FIG. 13 of the present application corresponds to FIG. 6 of Patent Document 1.

  FIG. 14 is a left side view showing the structure of a terminal cap for indirect hot-line work according to the prior art, and for indirect hot-wire work using an insulating operation rod having a pair of openable and closable gripping arms at the tip. It is the state figure which grasped the terminal cap. Note that FIG. 14 of the present application corresponds to FIG.

  Referring to FIGS. 12 to 14, a terminal cap (hereinafter abbreviated as a terminal cap) 8 for indirect hot-wire construction according to the prior art is composed of a pair of semi-cylindrical cap members 8a and 8b having insulation properties. Yes. These cap members 8a and 8b are connected to one end side by a flexible band plate hinge 8h. Further, these cap members 8a and 8b project gripping pieces 81a and 81b which can be contacted and separated to the other end side.

  Referring to FIGS. 12 to 14, one gripping piece 81a opens a rectangular engagement hole 81h. The other gripping piece 81a protrudes from a lance 81r formed in a bowl shape. When the pair of cap members 8a and 8b are closed by using the insulating operation rod 9 having a pair of openable and closable gripping arms 9a and 9b at the tip so that the pair of gripping pieces 81a and 81b face each other (see FIG. 14). ), The lance 81r can be locked in the engagement hole 81h.

  Referring to FIGS. 12 to 14, the other cap member 8 b includes a sponge body 81 s with putty inside. By abutting the end of the electric wire W against the sponge body 81s, rain water can be prevented from entering the inside of the electric wire W.

  As shown in FIG. 14, the pair of cap members 8a and 8b can be inserted into the other cap member 8b while the pair of cap members 8a and 8b are half open, and the pair of cap arms 9a and 9b are closed to close the pair of caps. The end of the electric wire W can be clamped by reliably closing the members 8a and 8b.

  Next, a configuration of an example of an insulating operation rod for operating the terminal cap 8 will be described. FIG. 15 is a front view of the insulating operation rod. 16 is an enlarged front view of the distal end portion of the insulating operation rod shown in FIG. FIG. 17 is a left side view of FIG.

  Referring to FIGS. 15 to 17, the insulating operation rod 9 is composed of a long operation rod 91 and a gripping tool 92. Further, the insulating operation rod 9 includes an operation rod 93. The gripping tool 92 is attached to the distal end portion of the operation rod 91.

  Referring to FIG. 15 or FIG. 16, the gripping tool 92 is composed of a pair of curved gripping arms 9a and 9b that open and close. One gripping arm 9a is a fixed arm with a base end fixed, and the other gripping arm 9b rotates around a rotation shaft 9c provided at the base end of one gripping arm 9a. It is a movable arm.

  Referring to FIG. 15, the operation bar 93 is held along the operation bar 91. The distal end portion of the operating rod 93 is rotatably connected to the other gripping arm 9b. And if the operating lever 94 provided in the base end part of the action | operation stick | rod 93 is operated, the other holding arm 9b can be opened and closed with respect to one holding arm 9a. The insulating operation rod 9 is configured by an insulating plastic pipe or the like in the middle portion between the operation rod 91 and the operation rod 93, and ensures insulation so as to be suitable for the indirect hot wire method.

  Referring to FIG. 15, when the operation lever 94 is grasped and the operation lever 94 is brought close to the operation rod 91, the other gripping arm 9b can be closed with respect to the one gripping arm 9a. When the operation lever 94 is released, the other holding arm 9b can be opened with respect to one holding arm 9a by the force of a spring (not shown) connected to the operation lever 94. FIG. 15 or FIG. 16 shows a state in which the other gripping arm 9b is opened to the maximum with respect to one gripping arm 9a.

  Referring to FIG. 16 or FIG. 17, one gripping arm 9a projects a tapered gripping claw 91a. The gripping claw 91a forms a gripping surface 90a. The gripping surface 90a is formed substantially in parallel along the centrifugal direction from the rotation center of the rotation shaft 9c. Similarly, the other gripping arm 9b projects a tapered gripping claw 91b. The gripping claw 91b forms a gripping surface 90b. The gripping surface 90b is disposed with a predetermined opening angle with the gripping surface 90a. With reference to FIG. 15 or FIG. 16, when the operation lever 94 is gripped, the gripping surface 90b can be brought close to the gripping surface 90a.

  The insulation operating rod 9 shown in FIGS. 15 to 17 is a so-called “insulating Yoko” that can hold a high-voltage distribution line or the like arranged at a high place with a pair of holding claws 91a and 91b.

  Referring to FIGS. 12 to 14, the terminal cap 8 according to the prior art is inserted with the terminal of the electric wire W after being cut. As for the terminal of the electric wire W after being cut, the core wire Wc is exposed (see FIG. 12). That is, the charging unit is exposed.

  Referring to FIGS. 12 to 14, in the terminal cap 8 according to the prior art, the exposed core wire Wc comes into contact with the pillar device or the like between the time when the electric wire W is cut and the time when it is inserted, and a ground fault occurs. There is a worry to do.

  There is a demand for a safe terminal cap for indirect hot-wire construction that can quickly protect the end of the wire from which the coating has been peeled off by covering it with an insulator after cutting the wire. The above can be said to be the subject of the present invention.

  The present invention has been made in view of such a problem, and after cutting an electric wire, a terminal for safe indirect hot-wire construction that can quickly protect the terminal of the electric wire from which the coating has been peeled off by covering it with an insulator. The purpose is to provide a cap.

  The present inventor considers that the core of the wire after cutting can be prevented from coming into contact with the column equipment by quickly sealing the end of the wire after cutting with the insulating clip and the pair of shutter plates, and based on this. As a result, the inventors have invented a new terminal cap for indirect hot-wire construction as follows.

  (1) The terminal cap for indirect hot wire construction according to the present invention is an indirect method of covering and protecting a wire terminal from which the coating has been peeled off with an insulator, using an insulating operation rod having a pair of openable and closable gripping arms at the tip. A terminal cap for hot wire construction, which has a pair of clip pieces on one end side that can be inserted from the outer periphery of the electric wire in a semicircular arc shape, and that can hold the electric wire, and has an intermediate portion hinged A pair of pivotally connected shafts, extending to the other end of the pair of clip pieces, and having a pair of gripping portions that can be opened and closed using the pair of gripping arms. A semi-cylindrical insulating clip, and an insulating rectangular shutter plate that is slidably connected to at least one end of these clip pieces and that can block the opening of the groove, and the clip pieces Protruding in the centrifugal direction of the groove The shutter plate has a pair of parallel rails protruding from the rear surface thereof, and the flange portion is slidable with a guide hole opened in the parallel rail. A pair of parallel pins that connect and guide the shutter plate in a direction substantially orthogonal to the direction in which the groove extends, and a biasing member that urges a force to move the shutter plate in a direction to close the opening of the groove In the state where the pair of shutter plates are closed to each other, the periphery of the end of the electric wire from which the coating has been peeled is covered with the pair of clip pieces, and the end surfaces of the end of the electric wire are covered with the pair of shutter plates. It can be closed with.

  (2) It is preferable that the shutter plate has an outer shape that substantially overlaps the outer shape of the flange portion.

  (3) It is preferable that the urging member is composed of a “tensile coil spring”.

  (4) It is preferable that the set of insulating clips includes a “torsion coil spring” that encloses the hinge shaft and biases a force in a direction in which the pair of clip pieces close.

  The terminal cap for indirect hot wire construction according to the present invention is a slidably connected to a pair of semi-cylindrical insulating clips capable of introducing electric wires from the outer peripheral direction and both ends of the insulating clips, and the openings of the insulating clips can be sealed. Since the terminal cap is composed of such a pair of shutter plates, the core wire of the electric wire can be covered with an insulator and protected immediately after the electric wire is cut.

It is a perspective view which shows the structure of the terminal cap for indirect hot wire construction by one Embodiment of this invention. It is a perspective exploded view showing the configuration of a terminal cap for indirect hot wire construction according to the embodiment, and is a state diagram in which a pair of insulating clips are arranged to face each other. It is a perspective exploded view which shows the structure of the terminal cap for indirect hot wire construction by the said embodiment. It is a top view which shows the structure of the terminal cap for indirect hot wire construction by the said embodiment. It is a front view which shows the structure of the terminal cap for indirect hot wire construction by the said embodiment. It is a right view which shows the structure of the terminal cap for indirect hot wire construction by the said embodiment. It is a longitudinal cross-sectional view which shows the structure of the terminal cap for indirect hot wire construction by the said embodiment, and is AA arrow sectional drawing of FIG. It is a front view which shows the structure of the terminal cap for indirect hot wire construction by the said embodiment, and is a state figure before opening a set of insulation clips and introducing an electric wire into the inside of a set of insulation clips from the outer peripheral direction. is there. It is a front view which shows the structure of the terminal cap for indirect hot wire construction by the said embodiment, Comprising: Although a pair of insulation clips are closed, it is a state figure which a pair of shutter board was blocked | interrupted by the electric wire and opened. It is a longitudinal cross-sectional view which shows the structure of the terminal cap for indirect hot wire construction by the said embodiment, and is a state figure which clamps an electric wire with a set of insulation clips. It is a longitudinal cross-sectional view which shows the structure of the terminal cap for indirect hot wire construction by the said embodiment, A pair of shutter which moved the terminal cap for indirect hot wire construction from the state shown in FIG. 10, and has arrange | positioned in one edge part. It is a state figure where the board closed. It is a perspective view which shows the structure of the terminal cap for indirect hot wire construction by a prior art, and is a state figure which opened a pair of cap member. It is a longitudinal cross-sectional view which shows the structure of the terminal cap for indirect hot wire construction by a prior art, and is a state figure which opened a pair of cap member. It is a left view which shows the structure of the terminal cap for indirect hot-wire construction by a prior art, The state which hold | gripped the terminal cap for indirect hot-wire construction using the insulation operation rod which has a pair of opening-and-closing grip arms in the front-end | tip part FIG. It is a front view of an insulation operation stick. It is the front view which expanded the front-end | tip part of the insulation operating rod shown in FIG. FIG. 17 is a left side view of FIG. 16.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
[Configuration of terminal cap for indirect hot-wire construction]
Initially, the structure of the terminal cap for indirect hot wire construction by one Embodiment of this invention is demonstrated.

  FIG. 1 is a perspective view showing a configuration of a terminal cap for indirect hot wire construction according to an embodiment of the present invention. FIG. 2 is an exploded perspective view showing the configuration of the terminal cap for indirect hot-wire work according to the embodiment, and is a state diagram in which a pair of insulating clips are arranged to face each other.

  FIG. 3 is an exploded perspective view showing the configuration of the terminal cap for indirect hot wire construction according to the embodiment. FIG. 4 is a plan view showing the configuration of the terminal cap for indirect hot wire construction according to the embodiment. FIG. 5 is a front view showing the configuration of the terminal cap for indirect hot wire construction according to the embodiment.

  FIG. 6 is a right side view showing the configuration of the terminal cap for indirect hot wire construction according to the embodiment. FIG. 7 is a longitudinal sectional view showing the configuration of the terminal cap for indirect hot wire construction according to the embodiment, and is a sectional view taken along the line AA in FIG. 5.

  FIG. 8 is a front view showing the configuration of the terminal cap for indirect hot wire construction according to the embodiment before opening a set of insulating clips and introducing the electric wires from the outer peripheral direction into the set of insulating clips. FIG.

  FIG. 9 is a front view showing the configuration of the terminal cap for indirect hot wire construction according to the embodiment, in which a pair of insulating clips are closed, but a pair of shutter plates are opened by being shielded by electric wires. is there.

  FIG. 10 is a longitudinal cross-sectional view showing the configuration of the terminal cap for indirect hot wire construction according to the embodiment, and is a state diagram in which a pair of insulating clips sandwich the electric wire.

  FIG. 11 is a longitudinal sectional view showing the configuration of the terminal cap for indirect hot-wire work according to the embodiment, and the terminal cap for indirect hot-wire work is moved from the state shown in FIG. 10 and arranged at one end. It is the state figure in which a pair of shutter plates made closed.

  In addition, since the effect | action of the component which has the code | symbol same as the code | symbol used by the prior art is the same, description may be abbreviate | omitted below.

(overall structure)
Next, the whole structure of the terminal cap for indirect hot wire construction by one Embodiment of this invention is demonstrated.

  Referring to FIGS. 1 to 7, a terminal cap for indirect hot wire construction (hereinafter abbreviated as “terminal cap”) 10 according to an embodiment of the present invention is in one-to-one correspondence with a pair of semi-cylindrical insulating clips 1 a and 1 b. A rectangular shutter plate 2 having a set of insulating properties is provided. The terminal cap 10 includes a hinge shaft 1 s and a “torsion coil spring” 3.

  1 to 7, one insulating clip 1a has a clip piece 11 on one end side. One clip piece 11 forms a groove portion 1d opened in a semicircular arc shape. The electric wire W can be introduced into one groove part 1d from the outer peripheral direction.

  Similarly, referring to FIGS. 1 to 7, the other insulating clip 1 a has a clip piece 11 on one end side. The other clip piece 11 forms a groove 1d opened in a semicircular arc shape. The electric wire W can be introduced into the other groove 1d from the outer peripheral direction.

  With reference to FIG. 9 or FIG. 10, when the pair of clip pieces 11 and 11 are closed to each other, the electric wire W can be clamped.

  Referring to FIG. 2 or FIG. 3 and FIG. 5 or FIG. 7, the pair of insulating clips 1a and 1b are pivotally connected to each other by a hinge shaft 1s. The set of insulating clips 1a and 1b has a pair of gripping portions 12a and 12b. The pair of grip portions 12a and 12b extend to the other end side of the pair of clip pieces 11 and 11.

  Referring to FIG. 2 or FIG. 3 and FIG. 5 or FIG. 7, the torsion coil spring 3 covers the hinge shaft 1s. The torsion coil spring 3 urges the force in the direction in which the pair of clip pieces 11 and 11 are closed.

  Referring to FIG. 1 or 5, when the pair of gripping portions 12a and 12b are gripped by the pair of gripping arms 9a and 9b against the biasing force of the torsion coil spring 3, the pair of clip pieces 11 and 11 are opened. (See FIG. 8). On the other hand, when the pair of gripping arms 9a and 9b are released from the pair of gripping portions 12a and 12b, the pair of clip pieces 11 and 11 can be closed by the biasing force of the torsion coil spring 3 (see FIG. 1).

  Referring to FIGS. 1 to 3, one set of shutter plates 2 and 2 is slidably connected to both ends of one clip piece 11. The other set of shutter plates 2 and 2 is slidably connected to both ends of the other clip piece 11. By closing the pair of shutter plates 2 and 2 that are opposed to each other in thickness, the opening 1k of the groove 1d can be sealed (see FIG. 7).

  Referring to FIGS. 1 to 3, the clip piece 11 has rectangular flanges 1 h that protrude in the centrifugal direction of the groove 1 d at both ends. On the other hand, referring to FIG. 3, the shutter plate 2 has a pair of parallel rails 2r and 2r protruding from the back surface thereof. A guide hole 21h is opened in the parallel rail 2r.

  Referring to FIG. 3, the flange 1h includes a biasing member 12s including a pair of parallel pins 11p and 11p and a tension coil spring. The parallel pin 11p is slidably connected to the guide hole 21h. The pair of parallel pins 11p and 11p can guide the shutter plate 2 in a direction substantially perpendicular to the direction in which the groove 1d extends.

  Referring to FIG. 3, the urging member 12 s has one end locked to the end of the shutter plate 2. Further, the urging member 12s has the other end locked to the end of the flange 1h. The urging member 12s urges the force to move the shutter plate 2 in the direction of closing the opening 1k of the groove 1d.

  With reference to FIG. 5 or FIG. 11, in the state where the pair of shutter plates 2 and 2 are closed to each other, the periphery of the end of the electric wire W from which the covering Wi is peeled is covered with the pair of clip pieces 11 and 11. The end face of the terminal can be closed with a pair of shutter plates 2.

  Referring to FIG. 1 or FIG. 8, the terminal cap 10 according to the embodiment opens a pair of insulating clips 1a and 1b by using an insulating operation rod 9 having a pair of openable and closable gripping arms 9a and 9b at the tip. The electric wire W before cutting can be introduced between the pair of insulating clips 1a and 1b. Next, when the pair of gripping arms 9a and 9b are released from the pair of gripping portions 12a and 12b, the electric wire W before cutting can be clamped by a pair of insulating clips 1a and 1b.

  Next, referring to FIG. 10, when the terminal cap 10 is moved toward the end of the electric wire W with respect to the cut electric wire W from which the covering Wi has been peeled, the pair of shutter plates 2 and 2 are closed to each other. (See FIG. 5 or FIG. 11). And while covering the circumference | surroundings of the terminal of the electric wire W from which the coating | coated Wi was peeled off with the pair of clip pieces 11 * 11, the end surface of the terminal of the electric wire W can be closed with a pair of shutter plates 2.2 * (refer FIG. 11).

  Since the terminal cap 10 according to the embodiment can protect the terminal of the electric wire W from which the coating Wi has been peeled off with an insulator immediately after cutting the electric wire W, the exposed core wire Wc comes into contact with the columnar equipment or the like. There is no worry, it is safe and secure.

(Insulation clip configuration)
Next, the configuration of the insulating clips 1a and 1b according to the embodiment will be described. Referring to FIGS. 1 to 7, insulating clip 1a and insulating clip 1b are preferably made of a synthetic resin having an insulating property, and a synthetic resin having an insulating property is molded into a semi-cylindrical insulating clip 1a. 1b can be obtained.

  Referring to FIG. 2, one insulating clip 1 a projects a cylindrical hinge shaft 13 a from the central portion of the intermediate portion. The hinge shaft 13a is cut out at the center and can accommodate the torsion coil spring 3. Further, the hinge shaft 13a has a support hole 13h that supports the hinge shaft 1s so as to be rotatable, with a center portion opened.

  On the other hand, referring to FIG. 3, the other insulating clip 1 b projects a pair of cylindrical hinge shafts 13 b and 13 b from the intermediate portion. A hinge shaft 13a can be disposed between the pair of hinge shafts 13b and 13b (see FIG. 2). The pair of hinge shafts 13b and 13b have a press-fit hole 14h into which the hinge shaft 1s is press-fitted at the center.

  2 or 3, the torsion coil spring 3 is accommodated inside the hinge shaft 13a, and the hinge shaft 13a and the pair of hinge shafts 13b are arranged so that the center of the support hole 13h and the center of the press-fit hole 14h coincide with each other. By combining 13b and press-fitting the hinge shaft 1s into the press-fitting hole 14h, the pair of insulating clips 1a and 1b can be opened and closed.

(Configuration of collar and shutter plate)
Next, the configuration of the flange 1h and the shutter plate 2 according to the embodiment will be described. 1 to 7, the shutter plate 2 is preferably made of a synthetic resin having an insulating property, and the flat shutter plate 2 can be obtained by molding the synthetic resin having an insulating property.

  1 to 5, shutter plate 2 preferably has an outer shape that substantially overlaps the outer shape of flange 1h.

  Referring to FIG. 3, the flange portion 1 h has a pair of first groove portions 11 d and 11 d opened in a rectangular shape from one surface. The pair of first groove portions 11d and 11d are disposed substantially in parallel. A pair of parallel rails 2r and 2r can be accommodated in the pair of first groove portions 11d and 11d. The stop position of the shutter plate 2 relative to the flange 1h can be defined by the parallel rail 2r coming into contact with the inner wall in the longitudinal direction of the first groove 11d.

  In addition, referring to FIG. 3, a second groove portion 12d having a rectangular opening is provided between the pair of first groove portions 11d and 11d. The second groove portion 12d is formed from one surface of the flange portion 1h. The urging member 12s can be accommodated in the second groove portion 12d.

  Referring to FIG. 3, in a state where one end of urging member 12s is locked to the end of shutter plate 2, and the other end of urging member 12s is locked to the end of second groove 12d, The back surface of the plate 2 is brought into contact with one surface of the flange 1h. Next, the shutter plate 2 can be slidably connected to the flange portion 1h by press-fitting the parallel pin 11p from the outer surface of the flange portion 1h so that the parallel pin 11p is inserted into the guide hole 21h.

  Referring to FIGS. 1 to 11, the terminal cap 10 according to the embodiment has a pair of shutter plates 2 and 2 disposed at both ends of the insulating clips 1a and 1b, but the pair of shutter plates 2 and 2 is insulated. It can also be arranged only at one end of the clips 1a and 1b.

[Operation of terminal cap for indirect hot wire construction]
Next, the operation and effect of the terminal cap 10 will be described while explaining the operation method of the terminal cap 10 according to the embodiment.

  First, referring to FIG. 1 or FIG. 8, when the pair of gripping portions 12a and 12b are gripped by the pair of gripping arms 9a and 9b, the pair of insulating clips 1a and 1b can be opened. And the electric wire W before a cutting | disconnection can be introduce | transduced between a set of insulation clips 1a * 1b (refer FIG. 8).

  Next, with reference to FIG. 1 or FIG. 9, when the pair of gripping arms 9a and 9b are released from the pair of gripping portions 12a and 12b, the electric wire W before cutting can be clamped by a pair of insulating clips 1a and 1b. In the state shown in FIG. 9, the pair of shutter plates 2 and 2 are moved away from each other by being blocked by the electric wire W before cutting (see FIG. 9).

  Next, referring to FIG. 10, the electric wire W is cut and the covering Wi of the terminal is peeled off. When the pair of gripping arms 12a and 12b are gripped using the pair of gripping arms 9a and 9b (see FIG. 10) in the state shown in FIG. Thus, the terminal cap 10 can be moved.

  Next, referring to FIG. 11, when the pair of shutter plates 2, 2 move to a position over the terminal of the cut electric wire W, the pair of shutter plates 2 is urged by the urging force of the urging member 12 s (see FIG. 3). • 2 can be closed (see FIG. 5). Then, the pair of gripping arms 9a and 9b are released from the pair of gripping portions 12a and 12b, and in the state shown in FIG. 11, the pair of clip pieces 11 and 11 surround the periphery of the end of the electric wire W from which the covering Wi is peeled off. In addition to covering, the end face of the end of the electric wire W can be closed by the pair of shutter plates 2.

  Since the terminal cap 10 according to the embodiment can protect the terminal of the electric wire W from which the coating Wi has been peeled off with an insulator immediately after cutting the electric wire W, the exposed core wire Wc comes into contact with the columnar equipment or the like. There is no worry, it is safe and secure.

The terminal cap for indirect hot wire construction according to the present invention can be expected to have the following effects.
(1) After cutting an electric wire, the core wire of an electric wire can be covered with an insulator and protected immediately.
(2) The core wire after cutting can be prevented from coming into contact with the columnar equipment.
(3) The work of inserting the cut electric wire toward the opening of the terminal cap can be omitted.

  Although this invention disclosed the terminal cap suitable for indirect hot wire construction, it is anticipated that the terminal cap by this invention is applied to a general electric wire, without being limited to an aerial distribution line.

1a and 1b A set of insulating clips 1d Groove 1h Groove 1k Groove opening 1s Hinge shaft 2 Shutter plate 2r and 2r A pair of parallel rails 9 Insulating operation rods 9a and 9b A pair of gripping arms 10 Terminal cap (for indirect hot line construction) Terminal cap)
11 · 11 Pair of clip pieces 11p · 11p Pair of parallel pins 12a · 12b

Claims (4)

A terminal cap for indirect hot wire construction that uses an insulating operation rod having a pair of openable and closable gripping arms at the tip, and covers and protects the wire terminal with the insulation peeled off with an insulator,
A groove portion that is opened in a semicircular arc shape so as to be introduced from the outer peripheral direction of the electric wire is formed, a pair of clip pieces that can sandwich the electric wire are provided on one end side, and an intermediate portion is rotatably connected to each other by a hinge shaft, A pair of semi-cylindrical insulating clips extending to the other end side of the pair of clip pieces and having a pair of gripping portions that can be opened and closed using the pair of gripping arms;
A rectangular shutter plate having insulating properties, slidably connected to at least one end of these clip pieces, and capable of sealing the opening of the groove,
The clip piece has at one end a rectangular flange protruding in the centrifugal direction of the groove,
The shutter plate has a pair of parallel rails protruding from the back surface thereof,
The buttocks
A pair of parallel pins that are slidably connected to the guide holes opened in the parallel rails and guide the shutter plate in a direction substantially orthogonal to a direction in which the groove extends.
An urging member for urging a force to move the shutter plate in a direction to seal the opening of the groove, and
In the state where the pair of shutter plates are closed to each other, an indirect live wire that covers the periphery of the end of the wire with the coating peeled off with the pair of clip pieces and closes the end surface of the end of the wire with the pair of shutter plates. Terminal cap for construction.   The terminal cap for indirect hot-wire construction according to claim 1, wherein the shutter plate has an outer shape substantially overlapping with an outer shape of the flange portion.   The terminal cap for indirect hot wire construction according to claim 1, wherein the biasing member is formed of a tension coil spring.   4. The indirect hot wire according to claim 1, wherein the set of insulating clips includes a torsion coil spring that encloses the hinge shaft and biases a force in a direction in which the pair of clip pieces closes. 5. Terminal cap for construction.

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