JP2014121158A - Clip for indirect live wire construction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clip for an indirect live wire construction which can easily and surely hold a plurality of wires.SOLUTION: A clip 10 comprises a clip body 1 and a grip 2. The clip 10 comprises a plurality of rollers 3 and a compression coil spring 4. The clip body 1 includes a cut groove 11 into which a wire W can be introduced. The grip 2 is fixed to the clip body 1 and includes a pair of holding faces 21a, 21a which can be held by an insulation operation rod 9. A pair of rollers 3, 3 are arranged at both wings of the cut groove 11. The compression coil spring 4 energizes the rollers 3, 3 to approach each other. When the wire W is introduced into the cut groove 11, the pair of rollers 3, 3 set back against the compression coil spring 4 with a rolling motion. When the wire W overrides the pair of rollers 3, 3, the wire W can be held by the pair of rollers 3, 3 facing each other and the adjacent pair of rollers 3, 3.

Description

  The present invention relates to a clip for indirect hot wire construction. In particular, the present invention relates to a structure of an indirect hot-wire construction clip that can indirectly hot-wire an uninterruptible high-voltage distribution line using an insulating operation rod or the like.

  The clip for indirect hot-wire construction is operated by being connected to an indirect hot-wire tool such as an insulation operation rod. For example, the insulation sheet placed on the high-voltage distribution line during charging does not leave the high-voltage distribution line during indirect hot-wire construction. Can be gripped. And the clip for indirect hot wire construction can temporarily fix an insulating sheet to a high voltage distribution line.

  As such a clip for indirect hot wire construction, a large and small concave portion that is gently curved is provided on the holding surface of a pair of opening and closing members capable of holding a high-voltage distribution line, and even if the operation is relatively rough, A clip for indirect hot wire construction that can hold a high-voltage distribution line in one of large and small recesses is disclosed (for example, see Patent Document 1).

  In addition, as such an indirect hot-wire construction clip, there is no troublesome work when fixing the insulation sheet coated on the high-voltage distribution line with the clip, and the indirect hot-wire construction work can improve the work efficiency of the indirect hot-wire construction. A clip is disclosed (for example, see Patent Document 2).

  The clip for indirect hot wire construction according to Patent Document 2 includes a pair of curved arms capable of gripping an insulating sheet covering a high-voltage distribution line, and a connecting portion in which a middle portion is connected so that a distal end portion of the pair of curved arms can be opened and closed. And a flat plate-shaped gripping portion that is extended to the base end portion side and can be gripped by an insulating operation rod. And the clip for indirect hot wire construction by patent document 2 can push an insulation sheet inside using an insulation operating rod, and has a plurality of rollers so that an outer periphery may protrude from the inner wall of a pair of curved arms. Since it arrange | positions, the insulation sheet which coat | covered the high voltage distribution line can be hold | gripped, without opening and closing with an insulation operation stick | rod.

JP 2001-27209 A JP 2001-231118 A

  However, the clip for indirect hot wire construction according to Patent Document 1 operates the hand operation lever of the insulating operation rod so that the distal ends of the pair of opening and closing members can be kept open, and the base ends of the pair of opening and closing members. It is necessary to close the part. Then, it is necessary to approach the high-voltage distribution line with the distal ends of the pair of opening and closing members open, and operate the hand operation lever of the insulating operation rod to close the distal ends of the pair of opening and closing members. Thus, the clip for indirect hot wire construction according to Patent Document 1 has a complicated operation using the insulating operation rod.

  On the other hand, the clip for indirect hot-wire construction according to Patent Document 2 can approach a high-voltage distribution line by holding a single gripping part with an insulating operation rod, and further push it from the outer peripheral direction of the high-voltage distribution line. An insulating sheet coated with a high-voltage distribution line can be held inside the pair of curved arms.

  However, it is difficult for the clip for indirect hot wire construction according to Patent Document 2 to hold a plurality of high-voltage distribution lines inside a set of curved arms. There is a need for an indirect hot wire clip that can easily and reliably hold one or more high-voltage distribution lines using an insulating operation rod. The above can be said to be the subject of the present invention.

  This invention is made | formed in view of such a problem, and it aims at providing the clip for indirect hot wire construction which can clamp one or more electric wires easily and reliably.

  The inventor has a box-shaped clip body having a notch groove through which an electric wire can be introduced from the outer peripheral direction, a flat-plate grip that protrudes toward the base end side of the clip body and can be gripped by an insulating operation rod, The outer periphery protrudes from the side wall of the notch groove, and when a plurality of sets of spur gear-shaped rollers arranged opposite to each other along the side wall of the notch groove and the electric wire are introduced into the notch groove, the roller moves backward while rolling. It has been found that by constructing a clip for indirect hot wire construction with an urging member that advances when the electric wire gets over the roller, one or more electric wires can be clamped easily and securely, and based on this, the following Invented a new clip for indirect hot wire construction.

  (1) The clip for indirect hot-wire construction according to the present invention can be operated using an insulating operation rod having a pair of gripping arms to be opened and closed at the distal end, and can hold one or more electric wires. A clip-shaped clip body that has a notch groove into which an electric wire can be introduced from the outer circumferential direction thereof, cut out from one surface to the other surface, and projects to the base end side of the clip body. A flat grip that can be gripped by the gripping arm and a part of the outer periphery projecting from one side wall of the notch groove, and along the one side wall of the notch groove, inside the clip body. A plurality of accommodated rollers, and a telescopic urging member that urges the roller to apply a force toward the notch groove from a direction substantially orthogonal to a direction in which the notch groove extends, and the clip body includes , Rotating shaft of the roller Both ends of the roller are rotatably supported, and the rotation shaft of the roller has a slot that guides it so as to move away from the notch groove. When the electric wire is introduced into the notch groove, the roller rolls. When the electric wire moves over the roller, the electric wire is clamped between the pair of adjacent rollers and the other side wall of the notch groove.

  (2) In the indirect hot work clip according to the present invention, the roller is housed in the clip body so that a part of the outer periphery protrudes from both side walls of the notch groove, and the notch groove A plurality of pairs facing each other with the notch groove in between, and the biasing member biasing the pair of rollers disposed facing each other toward the rollers, When the roller is introduced into the notch groove, the pair of rollers retreat while rolling, and when the electric wire passes over the pair of rollers, the electric wire is sandwiched between the pair of rollers adjacent to the pair of opposed rollers. Also good.

  (3) It is preferable that the said roller forms the several tooth | gear which can roll on the outer periphery of an electric wire in an outer periphery.

  (4) It is preferable that the grip has a grip surface substantially parallel to a direction in which the electric wire is introduced into the notch groove.

  (5) It is preferable that the said clip main body is comprised so that the said notch groove can be divided | segmented into a substantially center.

  Since the clip for indirect hot wire construction according to the present invention grips the grip with the insulating operation rod and introduces the electric wire into the cutout groove of the clip main body, at least one pair of adjacent rollers pinches the electric wire. Can be clamped easily and reliably.

It is a figure which shows the structure of the clip for indirect hot wire construction by one Embodiment of this invention, FIG. 1 (A) is a top view of the clip for indirect hot wire construction, FIG.1 (B) is for indirect hot wire construction. It is a front view of a clip. It is a figure which shows the structure of the clip for indirect hot wire construction by the said embodiment, FIG. 2 (A) is AA arrow sectional drawing of FIG. 1 (B), FIG.2 (B) is FIG. ) Is a right side view. It is a perspective view which shows the structure of the clip for indirect hot wire construction by the said embodiment. It is a perspective exploded view which shows the structure of the principal part of the clip for indirect hot wire construction by the said embodiment. It is a front view of the insulation operation stick for grasping the clip for indirect hot wire construction by the embodiment. It is a front view which shows the structure of the clip for indirect hot wire construction by the said embodiment, and is the state figure which hold | gripped the clip for indirect hot wire construction using the insulation operation stick | rod.

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

  FIG. 1 is a diagram illustrating a configuration of a clip for indirect hot-wire work according to an embodiment of the present invention. FIG. 1 (A) is a plan view of the clip for indirect hot-wire work, and FIG. It is a front view of the clip for hot wire construction.

  FIG. 2 is a diagram showing the configuration of the indirect hot wire clip according to the embodiment, FIG. 2 (A) is a cross-sectional view taken along arrow AA in FIG. 1 (B), and FIG. 2 (B) is FIG. 3 is a right side view of FIG. FIG. 3 is a perspective view showing a configuration of the indirect hot wire clip according to the embodiment. FIG. 4 is a perspective exploded view showing a configuration of a main part of the clip for indirect hot wire construction according to the embodiment.

  1 to 4, an indirect hot wire clip (hereinafter abbreviated as a clip) 10 according to an embodiment of the present invention includes one or more electric wires W or an insulating sheet (not shown) that covers the electric wires W. Z)). Further, the clip 10 can be operated by using an insulating operation rod 9 (see FIG. 5 or FIG. 6) that becomes an indirect hot wire tool described later.

(Clip body configuration)
Referring to FIGS. 1 to 4, the clip 10 includes a box-shaped clip body 1 and a plate-shaped grip 2. Further, the clip 10 includes a plurality of rollers 3 and a compression coil spring 4 serving as an urging member. The clip body 1 is made of a hard synthetic resin having insulating properties, and is formed in a thin rectangular parallelepiped shape having a cavity inside. The clip body 1 has a notch groove 11 cut out from one surface 1a to the other surface 1b. An electric wire W can be introduced into the cutout groove 11 from the outer peripheral direction.

  With reference to FIGS. 1 to 3, in the actual form, the clip main body 1 is configured to be capable of being divided about the notch groove 11 at substantially the center. The clip main body 1 is composed of a pair of case bodies 10a and 10a. The case body 10a can be easily formed by a pair of opposed molds. The bottom surfaces of the pair of case bodies 10a and 10a are fixed to the grip 2 with screws or the like so that the interval between the cutout grooves 11 does not widen (see FIG. 1).

(Grip configuration)
Referring to FIGS. 1 to 3, the grip 2 is made of a hard synthetic resin having an insulating property, and includes a grip piece 21 and a pair of flange pieces 22 and 22. The grip piece 21 protrudes toward the proximal end of the clip body 1. The pair of flange pieces 22, 22 extend from the base end portion of the grip piece 21 so as to be substantially orthogonal. The other surface 1b of the clip body 1 is brought into contact with the pair of flange pieces 22 and 22, and the clip body 1 is fixed with screws or the like (see FIG. 1).

  With reference to FIGS. 1 to 3, the grip piece 21 has a pair of gripping surfaces 21 a and 21 a that face in opposite directions. These gripping surfaces 21a and 21a are formed with diamond-cut anti-slip processing and can be securely gripped by a pair of gripping arms 9a and 9b (see FIG. 6). Further, the grip 2 forms a pair of gripping surfaces 21 a and 21 a substantially parallel to the direction in which the electric wire W is introduced into the notch groove 11.

(Internal structure of clip body)
Referring to FIGS. 1 to 4, the pair of rollers 3 and 3 are arranged to face each other with a notch groove 11 therebetween. The pair of rollers 3, 3 is accommodated inside the clip body 1 so that part of the outer periphery thereof protrudes from both side walls 11 a, 11 a of the notch groove 11. Further, the pair of rollers 3 and 3 are arranged in parallel along the both side walls 11a and 11b of the notch groove 11 at substantially equal intervals.

  Referring to FIG. 3 or FIG. 4, the roller 3 has a plurality of teeth 3t formed on the outer periphery. These teeth 3t can roll on the outer periphery of the electric wire W. The roller 3 has a shaft hole 3h opened at the center of the shaft (see FIG. 4). The rotating shaft 31 can be inserted into the shaft hole 3 h of the roller 3, and the roller 3 can be rotatably supported by the rotating shaft 31.

  Referring to FIG. 1 or FIG. 3, the clip body 1 has an elongated hole 1 h that supports both ends of the rotation shaft 31 of the roller 3 so as to be rotatable, and opens along the notch groove 11. With reference to FIG. 4, the axial movement of the rotating shaft 31 can be regulated with respect to the clip body 1 by fitting the E-ring 31 e into the annular grooves 31 d formed at both ends of the rotating shaft 31 ( FIG. 1A or FIG. 2B).

  Referring to FIG. 1 or FIG. 3, the long hole 1h extends in a direction substantially orthogonal to the direction in which the cutout groove 11 extends. The long hole 1h can be guided so that the rotating shaft 31 can move in a direction away from the both side walls 11a and 11b of the cutout groove 11.

  Referring to FIG. 1 or FIG. 4, the clip body 1 further includes a link member 32 formed in a portal shape. The link member 32 projects a pair of arms 32a and 32a from both wings. A shaft hole 32h is opened in the pair of arms 32a and 32a. The roller 3 is disposed between the pair of arms 32a and 32a, the shaft hole 3h and the shaft hole 32h are disposed coaxially, and the rotating shaft 31 is inserted, so that the roller 3 and the link member 32 are independent of each other. Can be connected freely.

  Referring to FIG. 1 or FIG. 4, the link member 32 projects a cylindrical boss 32b on the side opposite to the arm 32a. The boss 32 b can be installed at one end of the compression coil spring 4. On the other hand, the clip body 1 projects a boss 12b from its inner wall. The boss 12 b can be installed at the other end of the compression coil spring 4. That is, both ends of the compression coil spring 4 are supported by the boss 32b and the boss 12b.

  Referring to FIG. 1, the compression coil spring 4 urges a force toward the notch groove 11 from a direction substantially orthogonal to the direction in which the notch groove 11 extends via the link member 32. In the embodiment, the compression coil spring 4 urges the pair of rollers 3, 3 arranged opposite to each other via the link member 32 to approach each other. In the state shown in FIG. 1, both end portions of the rotating shaft 31 are in contact with one end edge of the long hole 1h, and the movement of the roller 3 is restricted.

  When the electric wire W is introduced into the notch groove 11 from the state shown in FIG. 1, the pair of rollers 3 and 3 roll while being guided by the elongated hole 1h. And when the electric wire W gets over a pair of rollers 3 * 3, the electric wire W can be clamped by a pair of rollers 3 * 3 adjacent to a pair of opposing rollers 3 * 3. When the electric wire W is led out from the notch groove 11, the pair of rollers 3, 3 arranged opposite to each other can be urged by the compression coil spring 4 via the link member 32 to return to the original state.

(Clip body modification)
Although the configuration of the clip 10 according to the embodiment is as described above, the plurality of rollers 3 and related parts may be arranged only along one side wall 11a of the cutout groove 11 (see FIG. 1 or FIG. 3). In this case, when the electric wire W is introduced into the notch groove 11, the electric wire W can be held between the adjacent pair of rollers 3 and 3 and the other side wall 11b of the notch groove 11 (see FIG. 1 or FIG. 3).

[Indirect hot-line work clip action]
Next, while supplementing the configuration of the clip 10 according to the embodiment, the operation and effect of the clip 10 will be described while explaining the operation method of the clip 10.

  FIG. 5 is a front view of an insulating operation rod for gripping the indirect hot wire clip according to the embodiment. FIG. 6 is a front view showing the configuration of the indirect hot-line work clip according to the embodiment, and is a state diagram in which the indirect hot-wire work clip is gripped using an insulating operation rod.

  Referring to FIG. 5, an insulating operating rod 9 (so-called insulating Yatco) serving as an indirect live tool is composed of a long operating rod 91 and a gripping tool 92. The gripping tool 92 is detachably attached to the distal end portion of the operation rod 91. Further, the insulating operation rod 9 includes an operation rod 93.

  Referring to FIG. 5, 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. 5, 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 has an insulating property secured so that an intermediate portion between the operation rod 91 and the operation rod 93 is connected by an insulating plastic pipe or the like, which is suitable for the indirect hot wire method.

  Referring to FIG. 6, when the clip 10 is attached to the insulating operation rod 9, the other holding arm 9b is closed with respect to one holding arm 9a, and the pair of holding surfaces 21a and 21a are sandwiched from the outside. Yes (see FIG. 3). In a state where the pair of gripping surfaces 21a and 21a are sandwiched, the gripping surfaces 21a and 21a are formed with diamond-cut anti-slip processing (see FIG. 2 or FIG. 3), so that the pair of gripping arms 9a・ It can be securely gripped with 9b.

  From the state shown in FIG. 6, the clip 10 is moved toward the electric wire W by using the insulating operation rod 9, and an operation lever (not shown) provided in the handle portion of the main operation rod 81 is operated. When W is introduced into the notch groove 11, the pair of rollers 3 and 3 roll while being guided by the elongated hole 1h. And if the electric wire W gets over a pair of roller 3 * 3, the electric wire W can be clamped with a pair of roller 3 * 3 adjacent to a pair of roller 3 * 3 which opposes (refer FIG.1 (B)).

  With reference to FIGS. 1 to 6, the clip 10 according to the embodiment has at least a pair of adjacent ones when the grip 2 is gripped by the insulating operation rod 9 and the electric wire W is introduced into the cutout groove 11 of the clip body 1. Since the rollers 3 and 3 pinch the electric wire W, one or more electric wires W can be easily and reliably pinched. In the state shown in FIG. 1, the two electric wires W are temporarily supported, but an insulating sheet (not shown) covering the electric wires W can also be temporarily supported.

The indirect hot wire clip according to the present invention has the following effects.
(1) There is no need to insert the cable into the electric wire while maintaining the open end of the clip as in the conventional clip.
(2) The electric wire can be temporarily supported by pushing the clip toward the electric wire, and the clip can be removed by pulling the clip away from the electric wire.
(3) Operation is easy.
(4) A plurality of electric wires can be temporarily supported.

  Although the present invention has disclosed a clip for indirect hot-wire construction that can indirectly hot-line high-voltage distribution lines in an uninterruptible state using an insulating operation rod or the like, the clip of the present invention is for indirect hot-wire construction. Without being limited, it is expected to be applied in other fields.

1 Clip body 1a One surface (one surface of the clip body)
1b The other side (the other side of the clip body)
1h Long hole 2 Grip 3 Roller 4 Compression coil spring (biasing member)
9 Insulation operation rods 9a, 9b A pair of gripping arms 10 Clips (clips for indirect hot wire construction)
11 Notch groove 11a One side wall 11b The other side wall 31 Rotating shaft W Electric wire

Claims (5)

A clip for indirect hot wire construction that can be operated using an insulating operation rod provided at the tip with a pair of gripping arms that opens and closes, and that can hold one or more electric wires,
A box-shaped clip body in which a notch groove into which an electric wire can be introduced from the outer circumferential direction is cut from one surface to the other surface;
A flat grip that protrudes toward the base end of the clip body and can be gripped by the pair of gripping arms;
A part of the outer periphery protrudes from one side wall of the notch groove, and along the one side wall of the notch groove, a plurality of rollers housed inside the clip body,
A telescopic urging member that urges the roller with a force directed to the notch groove from a direction substantially orthogonal to the direction in which the notch groove extends,
The clip body has an elongated hole that rotatably supports both ends of the rotation shaft of the roller and guides the rotation shaft of the roller so as to move away from the notch groove,
When the electric wire is introduced into the cutout groove, the roller moves backward while rolling,
The clip for indirect hot wire construction which clamps an electric wire with the other side wall of a pair of adjacent said roller and said notch groove when an electric wire gets over the said roller. The roller is accommodated inside the clip body so that a part of the outer periphery protrudes from both side walls of the notch groove, and the notch groove is interposed along both side walls of the notch groove. Arranged in pairs,
The biasing member biases the roller with a force that a pair of opposed rollers approach each other,
When the electric wire is introduced into the notch groove, the pair of rollers are retreated while rolling,
The clip for indirect hot wire construction according to claim 1, wherein when the electric wire passes over the pair of rollers, the electric wire is clamped by a pair of rollers adjacent to the pair of opposed rollers.   The clip for indirect hot wire construction according to claim 1 or 2, wherein the roller has a plurality of teeth formed on the outer periphery thereof that can roll on the outer periphery of the electric wire.   The indirect hot-wire work clip according to any one of claims 1 to 3, wherein the grip forms a gripping surface substantially parallel to a direction in which an electric wire is introduced into the notch groove.   The clip for indirect hot-wire work according to any one of claims 1 to 4, wherein the clip body is configured to be splittable about the notch groove.

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