JP2016103421A - Connector for pull-down wire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector for a pull-down wire which can prevent defective biting of a high-voltage wire of the connector for a pull-down wire.SOLUTION: A connector 1 for a pull-down wire comprising a pair of conductive holding pieces 2a and 2b whose separation distance can be adjusted with a bolt 32 comprises: a high-voltage wire holding portion 3 formed to be able to hold a high-voltage wire; a pull-down wire holding portion 4 formed to be able to hold a pull-down wire; and a flat plate-like gripping portion 5 provided below at least either one of the pair of holding pieces 2a and 2b. The gripping portion 5 has an engagement portion 52 which engages with an engagement hole 6 formed in the holding piece. Between the holding piece 2a in which the gripping portion 5 is provided and the gripping portion 5 is provided a spring 7. The gripping portion 5 is provided to be slidable relative to the either one of the holding pieces 2a and 2b.EFFECT: Even when the connector for a pull-down wire is mounted on the high-voltage wire while gripping the gripping portion with insulation pincers, the gripping portion is slid so that a state where the high-voltage wire is parallel to the connector can be maintained and therefore deviation of the connector for a pull-down wire relative to the high-voltage wire can be prevented.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an underline connector for electrically connecting an electric wire laid between utility poles and an underline.

  A conventional underline connector is used to connect an electric wire and an underline, and includes a connection portion that sandwiches and connects an electric wire, and a grip portion that is formed following the connection portion. The gripping part is gripped and connected.

  Specifically, a pair of high-voltage wire connection parts for gripping electric wires, a plate-like gripping part gripped by an insulating jacket, and a downline connector provided with a guide material attached to the gripping part are disclosed. The upper end of the high-voltage line connecting portion is opened by pressing the high-voltage line connecting portion biased so as to be closed by the spring to hold the electric wire (see Patent Document 1).

Japanese Unexamined Patent Publication No. 2011-1000061

  However, when the above-described conventional underline connector is attached to the high-voltage line, the high-voltage line is slanted because the high-voltage line is disposed not diagonally with respect to the ground because of the slackness. An underline connector is attached to the location. For this reason, when the work is performed by gripping the grip portion of the underline connector with an insulating jacket or the like, even though it seems that the high voltage line is inserted in parallel to the high voltage line holding portion from the viewpoint of the operator, In some cases, the high-voltage line is inserted obliquely, which causes a biting failure.

  Therefore, it is desired to develop a connector for a pull-down line that can hold the high-voltage line in the high-voltage line holding portion while maintaining the parallel state of the high-voltage line and the connector regardless of the mounting position and the inclination of the high-voltage line. It was.

  This invention is made | formed in view of the situation which concerns, and makes it the main subject to provide the connector for underline which can prevent the biting | fitting defect of the high voltage | pressure line of the connector for underline.

  In order to achieve the above object, the underline connector according to the present invention is a drawline connector having a pair of conductive holding pieces whose separation distance can be adjusted by bolts, and can hold a high voltage line. A high-voltage wire holding portion formed on the holding wire, a drawing wire holding portion formed so as to be able to hold a drawing line, and a flat plate-like holding portion provided below at least one of the pair of holding pieces. The portion has an engaging portion that engages with an engaging hole formed in the holding piece, a spring is provided between the holding piece on which the holding portion is provided and the holding portion, and the holding portion is It is characterized by being provided so as to be swingable with respect to the one sandwiching piece.

  Since the grip portion is provided so as to be swingable, the pair of sandwiching pieces can be prevented from moving in an unintended direction by the grip portion swinging. For this reason, the parallel state of the high-voltage line and the underline connector can be maintained, and the underline connector can be prevented from shifting with respect to the high-voltage line. Moreover, even if it tightens by a ratchet, the parallel state of a high voltage | pressure line and a connector can be maintained because a holding part swings.

Moreover, you may make it the engaging part of a holding part engage with the engaging hole formed in the clamping piece so that sliding with respect to the wiring direction of a high voltage | pressure wire is possible.
By being formed so as to be swingable with respect to the wiring direction of the high-voltage line, the swinging direction of the gripping portion is limited, so that the parallel state of the high-voltage line and the connector can be easily maintained.

  Furthermore, the spring may be a coil spring or a leaf spring.

  As described above, according to the underline connector according to the present invention, even if the holding part is attached to the high-voltage line by holding the holding part with the insulating yoke, the holding part swings and the high-voltage line and the connector are connected. And the underline connector can be prevented from shifting with respect to the high-voltage line. For this reason, it is possible to prevent the biting failure of the high-voltage line of the underline connector. Moreover, even if it tightens by a ratchet, the parallel state of a high voltage | pressure line and a connector can be maintained because a holding part swings.

FIG. 1 shows the overall structure of the underline connector according to the present invention. FIG. 1 (a) is a front view of the underline connector. (B) is a side view of the underline connector. FIG. 2 shows a structure in which the gripping part and the clamping piece are engaged, and FIG. 2A is an enlarged perspective view of the gripping part. (B) is an expansion perspective view which shows a part of lower end of a clamping piece. FIG. 3 is an enlarged perspective view of a gripping portion showing an embodiment of the underline connector using a leaf spring.

Hereinafter, the underline connector according to the present invention will be described with reference to the drawings.
In FIG. 1, the underline connector 1 includes a pair of conductive sandwiching pieces 2 a and 2 b whose separation distance can be adjusted by a bolt, and a high-voltage wire sandwiching part formed so as to be able to sandwich a high-voltage line. 3, a drawing line holding part 4 formed so as to be able to hold a drawing line, and a flat plate-like holding part 5 provided below at least one of the pair of sandwiching pieces 2a and 2b.

  The high-voltage wire clamping portion 3 includes arc-shaped high-voltage wire clamping recesses 3a and 3b formed on the upper ends of the pair of clamping pieces 2a and 2b, respectively, at opposite positions, and side surfaces of the pair of clamping pieces 2a and 2b. A bolt hole (not shown) formed so as to penetrate both of the clamping pieces, a bolt 32 screwed into the bolt hole, and a clamping piece 2b disposed close to the top of the bolt 32 And a washer 33 disposed between the two.

  The recesses 3a and 3b for holding the high-voltage line are formed in a substantially cylindrical shape so as to pass through both the holding pieces 2a and 2b from one end to the other end along the wiring direction of the high-voltage line. The diameter is formed in accordance with the diameter of the wire.

  Further, a protruding portion 21 that protrudes toward the other holding piece 2b that faces the other holding piece 2b is formed on the lower end side of one holding piece 2a, and the engaging portion that engages with the protruding portion 21 on the lower end side of the other holding piece 2b. A joint hole 22 is formed. Therefore, the separation distance is limited by the protrusion 21 coming into contact with the engagement hole 22 when the both sandwiching pieces 2a and 2b are separated.

  The underline holding portion 4 is provided below the protrusion 21 and the engagement hole 22 and is formed with arcuate underline holding recesses 41a and 41b formed at positions facing each other of the pair of holding pieces 2a and 2b, respectively. The springs 42 are biased so that the sandwiching pieces 2a and 2b are close to each other.

  The underline holding recesses 41a and 41b are formed in a substantially cylindrical shape penetrating the holding pieces 2a and 2b from one end to the other end along the wiring direction of the high voltage line, and are slightly smaller than the diameter of the underline. Its diameter is formed.

  Each of the springs 42 is a ring-shaped spring, and is provided with one at each end of the holding pieces 2a and 2b in the wiring direction of the high-voltage line, and a locking recess formed at the side of one holding piece 2a. 23, the base end is locked to a locking recess 23 formed on the side surface of the other holding piece 2b, and the intermediate portion between the distal end and the base end is one holding piece 2a. It is inserted through the insertion hole 24 formed in.

  Therefore, the inner peripheral portions of the underline holding recesses 41 a and 41 b are formed so as to contact the outer peripheral portion of the underline by the elastic force of the spring 42.

  Further, an engagement hole 6 that engages with the grip portion 5 is formed at the lower end of the one sandwiching piece 2a.

  As shown in FIG. 2, the engagement hole 6 has a conduction space 61 formed so that the width is narrowed for a while from the lower end of the holding piece toward the upper end direction (internal direction), and substantially following the conduction space 61. The engagement space 62 is formed in a cylindrical shape.

  The engagement space 62 is formed with respect to the separation / contact direction of the pair of sandwiching pieces 2a and 2b (substantially perpendicular to the wiring direction of the high-voltage line). Further, since the engagement space 62 is located near the underline clamping recesses 41a and 41b, the periphery of the engagement space 62 (the lower end portion of the clamping piece 2a) is formed thicker than other portions. .

  The grip portion 5 includes a flat plate portion 51 formed in a flat plate shape, and an engagement portion 52 that is formed following the tip of the flat plate portion 51 and engages with the engagement hole 6 of the sandwiching piece 2a. ing.

  The engaging portion 52 includes a rod-like portion 53 formed in a rod shape and a cylindrical tip portion 54 formed following the tip of the rod-like portion 53.

  The flat plate portion 51 has a side surface gripped by the insulating yoke 9 formed in a wave shape to prevent slipping.

  The rod-like portion 53 has a length such that when the engaging portion 52 is engaged with the engaging hole 6, the upper end of the flat plate portion 51 of the grip portion 5 and the lower end portion of the one sandwiching piece 2 a have a gap of about 5 mm. Is formed.

  The tip portion 54 is formed such that portions corresponding to the top and bottom surfaces of the cylinder are arranged in the cylinder forming direction of the engagement space 62, and a portion corresponding to the side surface is integrated with the tip of the rod-like portion 53.

  An elliptical coil spring 7 is provided between the lower end of the sandwiching piece 2 a provided with the grip portion 5 and the upper end of the flat plate portion 51 of the grip portion 5. Specifically, the engagement portion 52 of the grip portion 5 is engaged with the engagement hole 6 in a state where the coil spring 7 is replaced with the rod-shaped portion 53 formed in the grip portion 5.

  Therefore, the engaging part 52 of the holding part 5 is engaged with the engaging hole 6 formed in the holding piece 2a so as to be slidable in the wiring direction of the high-voltage line. The swing range of the grip portion 5 is limited by adjusting a gap (the length of the rod-shaped portion 53) formed between the upper end of the flat plate portion 51 of the grip portion 5 and the lower end portion of one clamping piece 2a. Or you may restrict | limit by adjusting the width | variety of the peristaltic direction of the conduction | electrical_connection space 63 formed in the clamping piece 2a.

A method for attaching the underline connector 1 of the present invention described above to a high voltage line will be described.
First, the underline connector 1 is gripped by the insulating jacket 9 and wound around the high-voltage line so as to mark the character "", and the underline connector 1 is disposed in the vicinity of the connection point to the high-voltage line. At this time, since the grip portion 5 is facing upward, the underline connector 1 is rotated so that the grip portion 5 faces downward at the tip of the Yatco.

  After the gripping portion 5 is directed downward at the tip of the insulating jacket 9, the pull-down connector 1 is disposed so as to be orthogonal to the high-voltage wire while gripping the gripping portion 5 with the insulating jacket 9. By pressing the clamping part 3 against the high-voltage line, the upper ends of the pair of clamping pieces 2a and 2b are opened, and the high-voltage line enters between them, so that the high-voltage line clamping part 3 holds the high-voltage line.

  When pressing the high-voltage line clamping portion 3 against the high-voltage line, the underline connector 1 is orthogonal to the high-voltage line (that is, the high-voltage line clamping portion 3 of the underline connector 1 is parallel to the high-voltage line). Therefore, the longitudinal direction of the insulating jacket 9 is orthogonal to the high-voltage line. At this time, since the gripping portion 5 swings, the holding pieces 2a and 2b can be prevented from moving in an unintended direction, so that the high-voltage line and the high-voltage line holding portion 3 of the underline connector 1 are in a parallel state. Can be maintained.

  After the high voltage line is clamped by the high voltage line clamping unit 3, the bolt 32 is tightened with an indirect ratchet to fix the underline connector 1 to the high voltage line. At this time, the ratchet force is transmitted to the underline connector 1, but when the gripping portion 5 swings, the high voltage line and the high voltage line holding portion 3 of the underline connector 1 can be maintained in a parallel state. .

  As described above, according to the underline connector 1 according to the present invention, the underline connector 1 can be prevented from being displaced with respect to the high voltage line. Can be prevented. Moreover, even if it tightens by a ratchet, since the holding | grip part 5 swings, the parallel state of a high voltage | pressure line and a connector can be maintained.

  In addition, since the swinging direction of the gripping part 5 is limited by being formed so as to be swingable with respect to the wiring direction of the high-voltage line, the high-voltage line and the high-voltage line holding part 3 of the underline connector 1 are in a parallel state. Can be maintained.

In the present embodiment, the coil spring 7 is provided between the lower end of the holding piece provided with the gripping portion 5 and the upper end of the flat plate portion 51 of the gripping portion 5. However, instead of the coil spring 7, a plate spring is used. Can also be implemented.
Specifically, as shown in FIG. 3, the plate spring 8 can be provided on both sides of the engaging portion 52 at the upper end of the flat plate portion 51 of the grip portion 5.

DESCRIPTION OF SYMBOLS 1 Underline connector 2a, 2b Clamping piece 3 High voltage line clamping part 4 Pulling line holding part 5 Gripping part 52 Engaging part 6 Engaging hole 7 Coil spring 8 Leaf spring

Claims (4)

It is a connector for an underline provided with a pair of conductive sandwiching pieces whose separation distance can be adjusted with bolts,
A high-voltage line holding part formed so as to be able to hold a high-voltage line; a draw-line holding part formed so as to be able to hold a down line; and a flat plate-like holding part provided below at least one of the pair of holding pieces; With
The grip portion has an engagement portion that engages with an engagement hole formed in the clamping piece,
A spring is provided between the gripping piece provided with the grip portion and the grip portion,
The underline connector, wherein the grip portion is provided so as to be swingable with respect to the one clamping piece.   2. The pull-down line according to claim 1, wherein the engaging portion of the gripping portion is engaged with an engaging hole formed in the holding piece so as to be swingable in a wiring direction of the high-voltage line. connector.   The underline connector according to claim 1, wherein the spring is a coil spring.   The underline connector according to claim 1, wherein the spring is a leaf spring.

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