JP2013198180A - Tip tool for indirect live wire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tip tool for indirect live wire including a function to be inserted between members for operation such that an engaged state of an attachment hook part of a high pressure cover is released or the like, and a function to be locked to a member to be clocked, such as a ring-shaped member.SOLUTION: A tip tool 1 for indirect live wire comprises a plate-like base 2, a tip part 3 provided at one end side in a longer direction of the base 2 and subjected to taper processing, a projection 9 provided at one side edge part of the base 2, a concave part 14 provided at the other side edge part of the base 2, and an attaching adapter 5 provided at the other end side in the longer direction of the base 2 and detachable from a common operation bar. An operation for changing the position of the ring-shaped member can be performed by hooking, for example, the ring-shaped member (ring-shaped spring) on/in the projection 9 or the concave part 14.

Description

  The present invention relates to a tip tool for indirect hot wire that is suitable for opening and closing operations of a high-pressure cover and the like, operation of a ring-shaped member of a connector housed therein, and the like in indirect hot wire work.

  Various high-voltage covers such as high-voltage connector covers, jumper sleeve covers, and wire holding clamp covers are attached to the exposed portions of the core wires of overhead power distribution lines. Such a high-pressure cover is composed of a pair of cover members, and the pair of cover members are connected to each other along the longitudinal direction through an elastic hinge so as to be openable and closable, and the other along the longitudinal direction. The engagement state is maintained by the mounting hook portion so that the side edges can be engaged and separated. Therefore, the removal of the high-pressure cover is performed by releasing the engagement state of the attachment hook portion and opening the cover member.

  Conventionally, as a method of releasing the engagement state of the mounting hook portion, the gripping protrusion integrally formed on the cover member is gripped with a YATKO, and in this state, the tip of the bind hammer is inserted into the wire outlet of the high-voltage cover And the method of canceling | releasing the engagement state of a mounting hook part is twisted by twisting a bind hammer.

  Further, in the operation of opening the old underline connector housed in the high pressure cover, the ring-shaped member attached to the connector must be rotated in the direction perpendicular to the overhead line. The work is also performed by hooking the bind punch on the ring-shaped member and rotating the ring-shaped member.

  By the way, in the method of releasing the engagement state of the high-pressure cover using the bind hammer, there is a concern that the overhead wire greatly swings, the core wire of the overhead wire is damaged, or the high-pressure cover is deformed or damaged. The For this reason, a strip-shaped tip tool having a U-shaped tip is attached to the tip of a common operating rod or an indirect hot wire gripping tool (insulated YATCO), and the tip of this tip tool is attached to a high-pressure cover mounting hook A method of releasing the engagement state of the mounting hook part by inserting and twisting it into the cable has been considered (see Patent Document 1).

JP 2010-4657 A

However, since the above-described tip tool is used only for releasing the engagement state of the mounting hook portion, another tool is required to perform other operations. For example, the operation of rotating the ring-shaped member of the underline connector housed inside the high pressure cover cannot be performed using the above-mentioned tip tool. It was necessary to replace the tip tool attached to the ring with a bind punch and rotate the ring-shaped member.
For this reason, the work cannot be performed efficiently, and the work place becomes narrow due to an increase in the number of tools.

  The present invention has been made in view of such circumstances, and has a function of being inserted and operated between members such as releasing an engagement state of a mounting hook portion of a high-pressure cover, and a ring-shaped member or the like. The main object is to provide a tip tool for indirect hot wire that also has a function of being locked and operated by a locked member.

  To achieve the above object, an indirect hot wire tip tool according to the present invention includes a plate-like base, a tip provided with a taper on one end in the longitudinal direction of the base, and the base. A protrusion provided on one side edge of the substrate, a recess provided on a side edge of the base opposite to the side on which the protrusion is provided, and a second end of the base in the longitudinal direction. And a mounting adapter that can be attached to and detached from the common operation rod.

  Therefore, in order to attach the mounting adapter for the tip tool for indirect hot wire to the tool mounting portion provided at the tip of the common operation rod, for example, in order to release the engagement state of the mounting hook portion of the high pressure cover, taper processing is performed. By inserting and twisting the applied tip between the attachment hook portions of the high-pressure cover, the engagement state of the attachment hook portion can be released.

After that, when removing the high-voltage cover and removing the underline connector housed inside, the ring-shaped member provided on the underline connector is in a state where it is vertical from the state parallel to the overhead wire However, it is possible to make the ring-shaped member parallel to the overhead line perpendicular to the overhead line by hooking the protrusion or the concave portion and turning it.
In this way, it is possible to continuously perform the removal of the high-pressure cover and the operation of the ring-shaped member of the underline connector using the same indirect hot wire front end tool.

  In addition, depending on the situation at the site, it is possible to appropriately select whether to use a convex part or a concave part, so if the work cannot be performed successfully using one, it is possible to try the same work using the other. Thus, workability is improved.

  Here, the protrusion provided on the side edge portion of the base body is preferably on a plane including the base body and protrudes in a direction substantially perpendicular to the longitudinal direction of the base body. By adopting such a configuration, it becomes possible to hook the protrusion on the ring-shaped member or the like of the underline connector from either side in the longitudinal direction of the base body, and the usage application is not limited.

  In addition, the base end portion of the protrusion has dents at both end portions along the longitudinal direction of the base body (both end portions on a plane including the base body and in a direction substantially orthogonal to the protruding direction of the protrusion). It is good to form. With such a configuration, it is possible to make it difficult to remove the hooked state after the protrusion is hooked on the ring-shaped member or the like.

  Moreover, it is preferable that the recessed part provided in the side edge part of a base | substrate is formed in the vicinity of the front-end | tip part of a base | substrate so that it can be hooked also to a ring-shaped member with a small diameter.

  As described above, according to the present invention, the tip provided on one end side of the base is inserted into, for example, a hook part to which a high-pressure cover is attached, and used to release the engagement state of the attachment hook part. In addition, since a convex portion or a concave portion provided on the side edge of the base can be used, for example, to change the direction of the ring-shaped member of the underline connector, a plurality of tools can be used with one tool. This makes it possible to improve the efficiency of indirect hot-line work, and eliminates the inconvenience that the work place becomes narrow due to the increase in the number of tools.

  In addition, since the tip of the base is tapered, it is easy to insert into the gap, and the protrusion provided on the side edge is on a plane including the base and the longitudinal direction of the base Since it protrudes in a direction substantially perpendicular to the base, it becomes easy to be hooked on a ring-shaped member, wire, etc. from either side of the longitudinal direction of the base, and both end portions along the longitudinal direction of the base at the base of the projection By forming a dent, it becomes possible to make it difficult to release the hooked state.

  Further, by forming the concave portion provided in the side edge portion in the vicinity of the distal end portion, it is possible to make it easy to hook the ring-shaped member having a small diameter.

FIG. 1 shows a tip tool for indirect hot wire according to the present invention, in which (a) is a front view and (b) is a side view. FIG. 2 shows an example of use of the indirect hot wire tip tool according to the present invention, and is an explanatory view for explaining the operation of inserting the tip portion into the attachment hook portion of the high-pressure cover and releasing the engaged state. FIG. 3 is a perspective view showing a state in which the protrusion of the tip tool for indirect hot wire according to the present invention is hooked from the outside on the ring-shaped member (ring-shaped spring) of the underline connector in a horizontal state with respect to the overhead wire. FIG. 4 is a perspective view showing a state in which the protrusion of the indirect live wire tip tool according to the present invention is hooked from below on the ring-shaped member (ring-shaped spring) of the underline connector in a state perpendicular to the overhead wire. . FIG. 5 is a perspective view showing a state in which the concave portion of the tip tool for indirect hot wire according to the present invention is hooked from the inside to the ring-shaped member (ring-shaped spring) of the underline connector in a horizontal state with respect to the overhead wire. FIG. 6 is a perspective view showing a state in which the concave portion of the tip tool for indirect hot wire according to the present invention is hooked on the ring-shaped member (ring-shaped spring) of the underline connector in a state perpendicular to the overhead wire. It is a figure which shows a high voltage | pressure retention clamp cover, (a) is a front view, (b) is a side view. It is explanatory drawing explaining operation which fastens or removes the fastening belt of a high voltage | pressure retention clamp cover using the front tool for indirect hot wire of this invention. It is explanatory drawing explaining operation which removes the covering of an overhead wire using the indirect hot wire front-end | tip tool of this invention.

  Embodiments of the present invention will be described below with reference to the drawings.

  In FIG. 1, the structural example of the tip tool for indirect hot wire which concerns on this invention is shown, (a) is a front view, (b) is a side view. This indirect hot wire tip tool 1 has a base body 2 made of a thin band-shaped metallic material, and the base body 2 has a length of about 5 to 6 cm and a thickness of about 2 to 5 mm. The lateral length (width) is about 2 to 3 cm.

  One end side (upper side of the drawing) of the base body 2 in the longitudinal direction is a tip portion 3 that is subjected to taper processing that gradually becomes thinner toward the tip. A mounting adapter 5 that can be attached to and detached from the common operation rod is integrally provided on the other end side (base end portion 4) in the longitudinal direction of the base 2.

  In the middle of the side edge 7 on the right side of the base 2 in the drawing, a projection 9 having a vertically elongated surface is provided. The protrusion 9 is on a plane including the base body and protrudes outwardly at a substantially right angle with respect to the longitudinal direction of the base body, and its tip 9 a is formed substantially parallel to the longitudinal direction of the base body 2. Has been. Note that the tip of the protrusion 9 may also have a tapered shape in which the thickness gradually decreases toward the tip.

  The base 9b connected to the base 2 of the protrusion 9 has both ends along the longitudinal direction of the base 2 (both ends in a direction that is on a plane including the base and substantially perpendicular to the protruding direction of the protrusion (see FIG. 1, the depressions 12 and 12 are formed in the upper and lower portions of the base 9 b of the projection 9), whereby the base 9 b of the projection 9 is formed so as to be narrower than the tip. The hooked member such as a wire is easily hooked and is not easily detached.

  Further, a concave portion 14 is formed in the vicinity of the tip portion of the side edge 8 on the left side of the base 2 of the indirect hot wire tip tool 1 in the drawing. The concave portion 14 has an opening portion narrower than the inside thereof, and makes it easy to hook a member to be locked such as an upper ring member or a wire that has been received and to prevent the concave portion 14 from coming off.

  The mounting adapter 5 has a configuration known per se, is formed in a hollow cylindrical shape having an open lower end, and the base body 2 is fixed to the upper end portion. A substantially T-shaped guide for introducing a pair of locking pins protruding in the radial direction of a tool mounting portion (not shown) provided at the tip of the common operation rod 17 on the cylindrical side surface of the mounting adapter 5. A groove 15a is formed, and a locking recess 15b for twist locking the locking pin is formed at the end of the guide groove 15a.

Next, the indirect hot wire work using the indirect hot wire tip tool 1 in the above configuration will be described.
FIG. 2 shows a state where the high-voltage connector cover 21 is attached to the overhead wire 20, and when the high-voltage connector cover 21 needs to be opened, the following operation is performed.

  First, the high-voltage connector cover 21 will be described. The high-voltage connector cover 21 has a pair of cover members 23a and 23b, and the pair of cover members is not shown in the upper side in the drawing. ) Are connected to each other by an elastic hinge. Further, a projecting piece 24 for gripping with an indirect hot wire gripping tool (insulating Yachko) is provided on the side edge of the front surface side (lower side in the drawing) of one cover member 23b. Further, in the vicinity of both ends along the longitudinal direction of the front surface side, a hook piece 25a integrally formed with one cover member 23a and a hook piece 25b integrally formed with the other cover member 23b engageable with the hook piece 25a A mounting hook portion 25 is provided.

When the high-voltage connector cover 21 is attached to the overhead wire 20 and the pair of cover members 23a and 23b are closed, when removing the high-voltage connector cover 21, first, an indirect hot wire gripping tool (insulation) is used. (Yatco) 27 is approached to the high-voltage connector cover 21, the operating part (not shown) is gripped, the projecting piece 24 is gripped by the gripping part of the indirect live wire gripping tool (insulated yatco) 27, and the high-voltage connector cover 21 is indirectly hot-wired. It is held by a gripping tool (insulating Yatco) 27.
Thereafter, the indirect live wire tip tool 1 attached to the tip of the common operation rod 17 is approached to the attachment hook portion 25 of the high-pressure connector cover 21, and the tip portion 3 is interposed between the hook pieces 25 a and 25 b of the attachment hook portion 25. Push in.

  Since the tip 3 is tapered, the tip 3 is easily inserted between the hook pieces 25a and 25b, and after being pushed in, the common operation rod 17 is turned around its own axis to twist the indirect live wire tip 1 Thus, the hook portion 25 can be disengaged and the cover members 23a and 23b can be opened.

  Next, an operation for removing the underline connector 30 attached to the overhead wire 20 inside the cover and connecting the underline 19 after removing the high-voltage connector cover 21 will be described. As shown in FIGS. 3 and 4, the underline connector 30 shown here includes a holding metal fitting 31, a receiving metal fitting 32, a fastening bolt 33, and a ring-shaped spring 34 (corresponding to a ring-shaped member). In the state accommodated in the high-voltage connector cover 21, as shown in FIG. 3, the ring-shaped springs 34 are arranged in parallel along the overhead line (turned along the overhead line). ing.

In this state, in order to remove the underline connector 30, it is necessary to rotate the ring-shaped spring 34 in a direction perpendicular to the overhead line. In this case, as shown in FIG. The protrusion 9 of the tool tip tool 1 is approached from the outside with respect to the ring-shaped spring 34, and the recess 12 on the lower side of the protrusion 9 is hooked and rotated downward.
Thereafter, by loosening the fastening bolt 33, the space between the presser fitting 31 and the receiving fitting 32 is widened by the spring force of the ring-shaped spring 34, and the underline connector 30 can be detached from the overhead wire 20.

  Conversely, in order to connect the underline connector 30 to the overhead wire 20, the fastening bolt 33 is loosened so that the presser fitting 31 and the receiving fixture 32 are opened in advance, and the presser foot is clamped using an insulation not shown. The overhead wire 20 is inserted between the metal fitting 31 and the receiving metal fitting 32, the fastening bolt 33 is tightened, and the underline connector 30 is fixed to the overhead wire 20. Thereafter, for example, as shown in FIG. 4, the indirect hot wire tip tool 1 is tilted so that the protrusion is on the upper side, approaching the ring spring from below, and the upper recess 12 of the protrusion 9 is connected to the ring spring 34. The link spring is rotated upward by moving the tip tool in the axial direction as it is pressed from below.

In the above-described operation, the position of the ring-shaped spring 34 is appropriately changed by the indirect live wire tip tool 1, but when the work space is narrow, the recess 14 of the indirect live wire tip tool 1 is formed. You may make it change the direction by hooking on the ring-shaped spring 34.
For example, when the ring-shaped spring 34 is rotated from a position parallel to the overhead wire 20 to a vertical position, as shown in FIG. The ring-shaped spring 34 is tilted so as to be on the upper side, approached from below, and the concave portion 14 is hooked on the ring-shaped spring 34 from the inside to rotate downward. Further, when the ring-shaped spring 34 is rotated from a position perpendicular to the overhead wire 20 to a parallel position, as shown in FIG. The indirect hot wire tip tool 1 may be moved obliquely upward by hooking the ring-shaped spring 34 from the side.

As described above, the ring-shaped spring 34 of the underline connector 30 of the indirect live wire tip tool 1 can be appropriately operated by the protrusion 9 or the recess 14 provided on the side edge of the base 2. Become.
In this embodiment, the indirect hot wire tip tool 1 is used to disengage the attachment hook portion 25 of the high voltage connector cover 21. However, the underline connector cover and the wire insulation cover (not shown) are shown. Needless to say, it can also be used to disengage the attachment hook portion of the high-pressure tension clamp cover.

  In FIG. 7, the example used for the high voltage | pressure retention clamp cover 37 is shown as another usage example of the indirect hot wire front tool 1. In FIG. As shown in FIG. 7, the high-pressure tension clamp cover 37 has a portion in which the cover members 23 a and 23 b are not easily adhered to each other only by the two hook portions 25. A fastening belt 39 is provided. The fastening belt 39 is formed with an engaging hole 40 and a hooking hole 41. On the other hand, the other cover member 23b is provided with a locking projection 43 for locking to the engaging hole 40. By engaging the engagement hole 40 of the fastening belt 39 with the stop protrusion 43, the adhesion is ensured.

  For such a high-pressure tension clamp cover 37, as shown in FIG. 8, for example, the protrusion 9 of the indirect hot wire front end tool 1 is hooked on the periphery of the hook hole 41 of the fastening belt 39 and pulled forward. The engagement state between the locking projection 43 and the engagement hole 40 can be released. In addition, in a state where the protrusion 9 is hooked on the periphery of the hooking hole 41 of the fastening belt 39, the locking protrusion 43 is hooked on the hooking hole 41 of the fastening belt 39 by pushing the fastening belt 39 so as to be turned. In the above-described operation, the same operation may be performed by hooking the recess 14 into the hook hole 41 instead of hooking the protrusion 9 into the hook hole 41 of the fastening belt 39.

  FIG. 9 shows still another example of use of the indirect hot wire tip tool 1. When stripping the coating by using an electric wire stripping device at a desired position of the overhead wire 20, the coating is cut, but the coating may remain on the overhead wire due to its own restoring force. In such a case, the protrusion 9 of the indirect live wire tip tool 1 is hooked on the notch 46 along the electric wire direction of the sheath 45 to rotate the sheath so that the position of the notch 46 is easily visible, By inserting the distal end portion 3 of the indirect hot wire front end tool 1 into the notch 46, the coating can be removed.

  In the above-mentioned example, the example in which the protrusion 9 or the recess 14 of the indirect hot wire front end tool 1 is locked to the hook hole 41 of the ring-shaped spring 34 or the fastening belt 39 is shown, but the present invention is not limited thereto. It can also be used in other places where it can be locked and operated.

DESCRIPTION OF SYMBOLS 1 Tip tool for indirect hot wire 2 Base | substrate 3 Tip part 4 Base end part 5 Attachment part 7 Right side edge part 8 Left side edge part 9 Protrusion 14 Recessed part 15 Common operation rod 20 Overhead wire 21 High-voltage connector cover 23a, 23b Cover member 24 Grip protrusion 25 Mounting hook portion 27 Insulating hook 30 Connector 31 Presser fitting 32 Receiving bracket 33 Fastening belt 34 Ring-shaped spring 37 High pressure tension clamp cover 39 Fastening belt 40 Engagement hole 41 Hooking hole 43 Locking protrusion 45 Coating

Claims (4)

A plate-like substrate;
A tip portion provided with a taper processing provided on one end side in the longitudinal direction of the substrate;
A protrusion provided on one side edge of the substrate;
A recess provided on a side edge of the base opposite to the side on which the protrusion is provided;
A mounting adapter provided on the other end side in the longitudinal direction of the base body and attachable to and detachable from a common operation rod;
An indirect hot wire tip tool characterized by comprising:   2. The indirect live tool tip according to claim 1, wherein the protrusion is on a plane including the base body and protrudes in a direction substantially perpendicular to the longitudinal direction of the base body.   3. The indirect live wire end tool according to claim 1, wherein dents are formed at both ends along the longitudinal direction of the base body at a base portion of the protrusion. 4. The said recessed part is formed in the vicinity of the said front-end | tip part, The tip tool for indirect hot-wire in any one of Claims 1-3 characterized by the above-mentioned.

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