JP2015220916A - Tip tool for indirect hot-line work - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tip tool for indirect hot-line work capable of reliably operating an object to be locked such as a wire coating stripping tool.SOLUTION: A binding machine 10 comprises a tip tool main body 1 and a hook piece 2. The tip tool main body 1 includes a shaft portion 1s and a hook portion 1h. The shaft portion 1s has a connection portion 1b at a base end. The connection portion 1b can be detachably fixed on the end portion of an insulated operating rod 80. The hook portion 1h is bent in the shape of C. The hook piece 2 is rotatably connected with the end portion of the hook portion 1h at the base end. The hook piece 2 is configured so that the end portion is freely openable and closable. The binding machine 10 includes a plate spring 3 and a wire member 4. The plate spring 3 applies force in a direction to open the hook piece 2. The wire member 4 is stretched across an opening 1k between the end portion of the hook portion 2 and the hook portion 1h. When an operating ring 72r is introduced from the opening 1k, the end portion of the hook portion 2 can be moved in a direction to close it by bending the wire member 4.

Description

  The present invention relates to a tip tool for indirect hot wire construction. In particular, it is an indirect hot-wire construction tool that can indirectly hot-work high-voltage distribution lines in an uninterruptible state using an insulation operation rod, etc., for operating bind wires that support high-voltage distribution lines on insulators. The present invention relates to a structure of a tip tool for indirect hot-wire work in which a hook-shaped bind hammer is improved so that an electric wire coating peeling tool for peeling an electric wire coating can be reliably operated.

  There are two types of hot-line work that performs high-voltage distribution lines without power interruption: direct hot-wire method and indirect hot-wire method. In the direct hot wire construction method, workers wear protective equipment such as high-pressure rubber gloves and perform power distribution work by directly touching the high-voltage distribution line that is energized. On the other hand, the indirect hot wire method allows the operator to perform power distribution work without directly touching the high-voltage power distribution line that is energized 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 front-end tool can be replaced | exchanged according to the work objectives, such as holding | griping or cutting | disconnecting a high voltage distribution line.

  As such a tip tool, it is possible to peel off the coating of a high-voltage distribution line arranged at a high place, and a wire coating peeling tool for indirect hot wire construction, and for indirect hot wire construction for operating this wire coating peeling tool A hook-shaped bind punch (tip tool) is disclosed (for example, see Patent Document 1).

JP 2008-182820 A

  FIG. 3 is a perspective view showing an example of a conventional wire sheath peeling tool. FIG. 3 of the present application corresponds to FIG. FIG. 4 is a view showing an example of a bind hitting device according to the prior art, FIG. 4A is a left side view of the bind hitting device, and FIG. 4B is a front view of the bind hitting device. .

  Referring to FIG. 3, an electric wire coating peeling tool (hereinafter abbreviated as a peeling tool) 7 includes a cutting blade 7 c capable of peeling the coating of the electric wire W in the main body 7 b. The peeling tool 7 includes an eye handle 71 and an eye bolt 72 in the main body 7b. The eye handle 71 and the eye bolt 72 are arranged so that their axial centers are orthogonal to each other.

  Referring to FIG. 3, the eye handle 71 has a feed screw portion 71s and a butterfly-shaped grip portion 71c. The feed screw portion 71s is screwed to the main body 7b. By rotating the gripping portion 71c, a movable die for pressing the electric wire W from the outer peripheral direction can be moved.

  Referring to FIG. 3, the gripping portion 71 c has an engagement hole 71 h that is engageable with a hook portion 8 a provided on the bind hammer 8 described later at the center. The movable die can be advanced toward the fixed die by locking the hook portion 8a in the engagement hole 71h and rotating the grip portion 71c in one direction around the axis. And the cutting blade 7c can be made to bite into the coating | cover of the electric wire W because a fixed die | dye and a movable die | dye approach relatively. Next, the coating of the wire W can be peeled by turning the peeling tool 7 360 degrees around the wire W.

  Referring to FIG. 3, the eyebolt 72 includes a cylindrical insulating shaft 72s and an annular operation ring 72r. The insulating shaft 72s has its proximal end fixed to the main body 7b. The insulating shaft 72s has an operation ring 72r attached to the tip thereof.

  Referring to FIG. 3 or FIG. 4, the bind hammer 8 is detachably attached to the distal end portion of the long insulating operation rod 80. 3 includes a connection fitting (not shown) called a twist lock at the base end portion. The insulating operation rod 80 is a so-called common operation rod in which tip tools having different uses can be exchanged, and a twist lock type bind punch 8 is attached to the tip portion.

  On the other hand, the bind striker 8 shown in FIG. 4 includes a disk-shaped star seat 8b at the base end. A male screw part is provided in a twist lock type connection fitting (not shown) provided at the tip of the insulating operation rod 80, and the male screw part is inserted through the center of the chrysanthemum part 8b, and a wing nut (not shown) is inserted. By fastening to the male screw portion, the bind hammer 8 can be fixed at an arbitrary angle with respect to the direction in which the insulating operation rod 80 extends (see FIG. 3).

  Referring to FIG. 3 or FIG. 4, the bind hitter 8 includes a rod-shaped shaft portion 8s and a hook portion 8a. The hook portion 8a is bent in a C shape continuously from the shaft portion 8s. Further, the bind hammer 8 includes a cylindrical pin portion 8p. The pin portion 8p protrudes from the shaft portion 8s on the side opposite to the opening 8k of the hook portion 8a. In addition, the name of the bind hammer is derived from the fact that the bind wire that supports the high-voltage distribution line on the insulator can be operated.

  Next, with reference to FIG. 3 or FIG. 4, the peeling method of an electric wire coating | cover is demonstrated. First, the electric wire W is supported from below using the gripping tool 6 for indirect hot wire construction. Next, the hook portion 8a is locked in the engagement hole 71h, and the gripping portion 71c is rotated in one direction around the axis, whereby the cutting blade 7c can be bitten into the coating of the electric wire W.

  Next, referring to FIG. 3, the pin portion 8p is inserted into the operation ring 72r, and the peeling tool 7 is peeled against the force of turning around the electric wire W in the clockwise direction (see arrow A in the figure). When the tool 7 turns 360 degrees around the electric wire W in the counterclockwise direction (see arrow B in the figure), the coating of the electric wire W can be peeled off. For example, the core wire of the electric wire W can be exposed by pulling out the coating of the electric wire W from the terminal.

  Referring to FIG. 3, the peeling tool 7 has a center of gravity so that the eyebolt 72 hangs down in a state where the electric wire W is gripped. Thus, when the peeling tool 7 is turned counterclockwise around the electric wire W, the position of the center of gravity is changed, and thus the peeling tool 7 generates a force for turning clockwise around the electric wire W.

  However, according to the conventional method for peeling the wire coating, when the peeling tool 7 is turned about 90 degrees counterclockwise around the wire W, the hook portion 8a is hindered by the insulating shaft 72s, and more. There was a problem that turning was difficult.

  In order to solve such a problem, referring to FIG. 3, the hook portion 8 a is inserted into the operation ring 72 r, the peeling tool 7 is turned about 180 degrees counterclockwise around the electric wire W, and the peeling tool 7 Is turned counterclockwise from the weight balance, the hook portion 8a is locked to the operation ring 72r from the opposite side, and the peeling tool 7 is rotated about 180 around the electric wire W in the counterclockwise direction. The coating of the electric wire W was peeled off by swiveling.

  However, referring to FIG. 3 or FIG. 4, even in the above-described wire covering peeling method, the tip end side of the hook portion 8 a protrudes greatly in a direction substantially orthogonal to the direction in which the shaft portion 8 s extends. It is difficult to operate the insulating operation rod 80 so that the tip end side of the hook portion 8a is not obstructed by the peeling tool 7 or other insulating operation rod.

  From the above, there has been a demand for a tip tool for indirect hot wire construction that can reliably operate an object to be locked such as an electric wire covering peeling tool for peeling an electric wire covering.

  This invention is made in view of such a subject, and provides the front-end tool for indirect hot-wire construction which made it possible to operate | move reliably locking objects, such as an electric wire coating peeling tool which peels the coating of an electric wire. For the purpose.

  The inventor connects a rod-like hook piece to the tip of the hook part bent in a C-shape so that the hook part can be rotated, and the plate spring is moved inward so as to urge the hook in the opening direction. By placing and opening the opening of the hook piece tip and the shaft side of the hook part with a wire member, it is possible to reliably operate an object to be locked such as an electric wire covering peeling tool for peeling an electric wire covering. Based on the headline and this, it came to invent the following new tool for indirect hot wire construction.

  (1) A tip tool for indirect hot-line construction according to the present invention is a tip tool for indirect hot-wire construction that is detachably fixed to the tip portion of a long insulating operation rod and can lock an object to be locked. A connecting portion that is detachably fixed to the distal end portion of the insulating operation rod, and a rod-shaped shaft portion provided at the base end portion, and is bent in a C shape so as to bypass the extending direction of the shaft portion. A tip tool body having a hook portion, and a base end portion rotatably connected to the tip portion of the hook portion, so as to move toward or away from the tip portion of the shaft portion, A plate-like hook piece that can be freely opened and closed, and a leaf spring that is arranged so that the fixed end is fixed to the tip of the hook and the free end urges the force in the direction of opening the hook. And one end portion is anchored to the tip end portion of the hook piece, and the other end portion is anchored to the shaft portion side of the hook portion. And a bendable wire member that traverses the opening surrounded by the hook piece, and when the object to be locked is introduced from the opening, the wire member is bent, and the tip of the hook piece Can be moved in the closing direction toward the tip of the shaft.

  (2) Preferably, the object to be locked is an operation ring provided at a tip portion of an eyebolt that turns an electric wire covering peeling tool for peeling an electric wire covering in one direction around the electric wire.

(3) The connection portion may include a disk-shaped star seat that can fix the shaft portion at an arbitrary angle with respect to a direction in which the insulating operation rod extends.
(4) The connecting portion may have a pair of twist lock-type holes that can connect a tip tool having a different use to a replaceable common operation rod.

  The tip tool for indirect hot wire construction according to the present invention introduces an operation ring provided in the wire covering peeling tool from the opening surrounded by the hook portion and the hook piece, and then bends the wire member so that the tip portion of the hook piece 2 is moved. Can move in the closing direction. Thereby, the tip tool for indirect hot wire construction according to the present invention closes the opening, makes it difficult to remove the operation ring, and can easily operate the insulating operation rod.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows the structure of the tip tool for indirect hot wire construction by one Embodiment of this invention, FIG. 1 (A) is a top view of the tip tool for indirect hot wire construction, FIG. It is a front view of the tip tool for wire construction, and is a state diagram before introducing the locking object into the hook portion. It is a front view of the tip tool for indirect hot wire construction by the above-mentioned embodiment, and is a state figure which introduced a locking subject into a hook part. It is a perspective view which shows an example of the electric wire coating peeling tool by a prior art. It is a figure which shows an example of the bind hammer by a prior art, FIG. 4 (A) is a left view of a bind hammer, and FIG. 4 (B) is a front view of a bind hammer.

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

  FIG. 1 is a perspective view showing the configuration of a tip tool for indirect hot-wire work according to an embodiment of the present invention, and FIG. 1 (A) is a plan view of the tip tool for indirect hot-wire work, and FIG. 1 (B). These are front views of the front-end tool for indirect hot wire construction, and are state diagrams before introducing the locking object into the hook portion.

  FIG. 2 is a front view of the tip tool for indirect hot-wire construction according to the embodiment, and is a state diagram in which an object to be locked is introduced into the hook portion. In addition, although the operation ring 72r shown in FIG. 3 is disclosed as an embodiment as the locking object, the locking object is not limited to the operation ring.

(overall structure)
Referring to FIG. 1 or FIG. 2, a tip tool for indirect hot-line work (hereinafter referred to as a binding hitter) 10 according to an embodiment of the present invention includes a tip tool body 1 and a rod-shaped hook piece 2. The tip tool body 1 has a rod-shaped shaft portion 1s and a hook portion 1h. The shaft portion 1s is provided with a connecting portion 1b at the base end portion. The connecting portion 1b can be detachably fixed to the distal end portion of the insulating operating rod 80 (see FIG. 3). The hook portion 1h is bent in a C shape so as to bypass the direction in which the shaft portion 1s extends.

  Referring to FIG. 1 or FIG. 2, the hook piece 2 has a base end portion rotatably connected to a tip end portion of the hook portion 1h. In addition, the hook piece 2 is configured to be movable toward or away from the tip end of the shaft portion 1s or to be openable and closable so as to move away from the tip portion of the shaft portion 1s.

  Referring to FIG. 1 or FIG. 2, the bind hammer 10 includes a leaf spring 3 and a bendable wire member 4. The fixed end portion 3a of the leaf spring 3 is fixed to the tip end side of the hook portion 1h. Further, the leaf spring 3 is arranged so that the free end 3b urges the force in the direction in which the hook piece 2 is opened.

  Referring to FIG. 1 or FIG. 2, the wire member 4 has one end portion anchored to the tip end portion of the hook piece 2. Further, the other end of the wire member 4 is anchored to the shaft portion 1s side of the hook portion 1h. The wire member 4 crosses the opening 1k surrounded by the hook portion 1h and the hook piece 2.

  Referring to FIG. 1, when the operation ring 72 r is introduced from the opening 1 k (see FIG. 3), the wire member 4 is bent and the tip of the hook piece 2 is moved in the direction of closing toward the tip of the shaft portion 1 s. Yes (see FIG. 2).

(Configuration of tip tool body)
Referring to FIG. 1 or FIG. 2, the tip tool body 1 is provided with a disk-shaped star seat portion 11b in the connecting portion 1b. A male screw part is provided in a twist lock type fitting (not shown) provided at the tip of the insulation operating rod 80, and the male screw part is inserted through the center of the chrysanthemum part 11b, and a wing nut (not shown) is inserted. By fastening to the male screw portion, the shaft portion 1s can be fixed at an arbitrary angle with respect to the direction in which the insulating operation rod 80 extends (see FIG. 3).

  The connecting portion 1b may be configured to have a pair of twist lock-type holes that can connect a tip tool having a different application to a replaceable common operation rod.

  Referring to FIG. 1 or FIG. 2, the tip tool body 1 further includes a cylindrical pin portion 1p. The pin portion 1p protrudes from the shaft portion 1s on the side opposite to the opening 1k surrounded by the hook portion 1h and the hook piece 2. For example, the pin portion 1p can be inserted into the operation ring 72r, and the peeling tool 7 can be turned around the electric wire W (see FIG. 3).

(Hook piece configuration)
Referring to FIG. 1A, the hook portion 1h has a tip formed in a single clevis shape. On the other hand, the hook piece 2 has a base end portion formed in a double clevis shape. Referring to FIG. 1 or FIG. 2, the hook portion 1h has a first hole (not shown) that is rotatably connected to the rotation pin 2p at the tip. The hook piece 2 has a second hole (not shown) into which the rotation pin 2p is press-fitted at the base end.

  Referring to FIG. 1, the tip of a single clevis-shaped hook portion 1h is fitted to the base end of a double clevis-shaped hook piece 2, and the first hole and the second hole are made to coincide with each other. By inserting the rotation pin 2p into the second hole, the base end portion of the hook piece 2 can be rotatably connected to the distal end portion of the hook portion 1h.

(Configuration of leaf spring)
Referring to FIG. 1 or FIG. 2, the fixed end 3a of the leaf spring 3 is fixed to the inner periphery on the tip end side of the hook 1h with a set of rivets 3r. The fixed end portion 3a bends both wings at a substantially right angle to ensure rigidity and holds the outer periphery of the hook portion 1h on the tip end side.

  Also, referring to FIG. 1 or FIG. 2, the leaf spring 3 is bent at substantially right angles on both wings at the tip of the free end 3b. And the front-end | tip part of the free end part 3b hold | maintains the outer periphery of the intermediate part of the hook piece 2. FIG. Thereby, the free end 3b can follow the movement of the hook piece 2.

(Configuration of wire member)
Referring to FIG. 1 or FIG. 2, the wire member 4 has a spherical portion 4b formed at one end thereof. One end of the wire member 4 can be formed in a spherical shape by a processing means such as welding or molding. The hook piece 2 has a first pore through which the wire member 4 can be inserted opened at the tip. The other end portion of the wire member 4 is inserted into the first pore, and the spherical portion 4b is prevented from coming off from the first pore, so that one end portion of the wire member 4 can be anchored to the distal end portion of the hook piece 2.

  Referring to FIG. 1 or FIG. 2, the hook portion 1h has the second pore opened on the shaft portion 1s side so as to be coaxial with the first pore. The other end portion of the wire member 4 is inserted into the second pore, the metal sleeve 4s is crimped to the other end portion of the wire member 4, and the metal sleeve 4s is prevented from coming out of the second pore, whereby the wire member The other end of 4 can be anchored to the shaft 1s side of the hook 1h. And the wire member 4 can stretch the front-end | tip part of the hook piece 2, and the axial part 1s side of the hook part 1h.

[Operation of tip tool for indirect hot-wire construction]
Next, the operation and effect of the bind hammer 10 according to the embodiment will be described. Referring to FIG. 1 or FIG. 2, the bind hitting device 10 connects a rod-like hook piece 2 to a tip portion of a hook portion 1h bent in a C-shape so as to be rotatable, and in a direction in which the hook piece 2 opens. The leaf spring 3 is arranged on the inner side so as to urge the force.

  Referring to FIG. 1 or FIG. 2, the bind striker 10 has a wire member 4 extending an opening 1 k between the tip of the hook piece 2 and the shaft 1 s side of the hook 1 h. With these configurations, when the operation ring 72r is introduced from the opening 1k (see FIG. 3), the bind hammer 10 bends the wire member 4 so that the tip of the hook piece 2 faces the tip of the shaft portion 1s. Can move in the closing direction.

  As a result, when the operation ring 72r is introduced from the opening 1k (see FIG. 3), the opening 1k is closed and the operation ring 72r is difficult to be removed, and the hook piece 2 is closed, so that the peeling tool 7 or other insulating operation rod is attached. The insulation operating rod 80 can be easily operated so as not to be obstructed (see FIG. 3).

The following effects can be expected from the tip tool for indirect hot wire construction according to the present invention.
(1) When the tip tool for indirect hot-wire work is turned, it does not interfere with other insulation operation rods.
(2) Since the outer shape of the hook portion can be reduced, the operability of the insulating operation rod can be improved.
(3) Since the tip tool for indirect hot-wire work can be turned with the opening closed, it is difficult for the locking object to come off.

  Although the present invention has disclosed an indirect hot wire end tool that can indirectly hot line an uninterruptible high-voltage distribution line using an insulating operation rod or the like, the tip tool of the present invention is an indirect hot wire work It is expected to be applied in other fields without being limited to the above.

DESCRIPTION OF SYMBOLS 1 Tip tool main body 1b Connection part 1h Hook part 1k Opening 1s Shaft part 2 Hook piece 3 Leaf spring 3a Fixed end part 3b Free end part 4 Wire member 7 Peeling tool (locking object)
10 Bind hammer (tip tool for indirect hot wire construction)
80 Insulation control rod

Claims (4)

A tip tool for indirect hot-wire work that is detachably fixed to the tip of a long insulating operation rod and can lock an object to be locked,
A connecting portion that is detachably fixed to the distal end portion of the insulating operation rod is bent in a C-shape so as to bypass the rod-shaped shaft portion provided at the base end portion and the direction in which the shaft portion extends. A tip tool body having a hook portion;
A rod-shaped hook piece whose base end portion is pivotably connected to the tip end portion of the hook portion, and the tip end portion can be opened and closed so as to move toward or away from the tip end portion of the shaft portion. When,
A leaf spring arranged so that the fixed end is fixed to the tip end side of the hook portion, and the free end urges a force in a direction to open the hook piece;
A bendable wire member that anchors one end to the tip of the hook piece, anchors the other end to the shaft side of the hook, and crosses the hook and the opening surrounded by the hook. With
A tip tool for indirect hot-wire work that can be moved in a direction to bend the wire member and close the tip of the hook piece toward the tip of the shaft when the object to be locked is introduced from the opening.   The indirect hot wire construction according to claim 1, wherein the object to be locked is an operation ring provided at a tip portion of an eyebolt that turns an electric wire covering peeling tool for peeling an electric wire covering in one direction around the electric wire. Tip tool.   The tip tool for indirect hot-wire construction according to claim 1 or 2, wherein the connecting portion includes a disk-shaped star seat that can fix the shaft portion at an arbitrary angle with respect to a direction in which the insulating operation rod extends.   The tip part for indirect hot-wire construction according to claim 1 or 2, wherein the connection part has a pair of twist lock shaped hook holes that can connect the tip tool having a different use to a replaceable common operation rod.

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