JP2015046988A - Coating stripping tool for wiring - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coating stripping tool for a wiring, capable of decreasing the number of revolution of a shank by utilizing an elastic mechanism when revolving the shank and making a blade body holder having blade bodies approach a holding part of a body, in order to strip a coating from the wiring on which a holding part is hooked.SOLUTION: A coating stripping tool 1 for a wiring comprises: a holding part 21 hooked and held on the wiring 100; a blade body holder 3 having blade bodies 4, 5; a shank 6 moving the blade body holder 3 closer to or apart from the holding part 21; and a base part 23 in which the shank 6 is inserted. In the shank 6, there are formed: a thread part 64 for applying pressing force to make the blade bodies 4, 5 bite into a coating 102 of the wiring 100 from a state that the blade body 4 is in contact with the coating 102 of the wiring 100; a thread part 65 by which the blade body holder 3 holds a state farthest away from the holding part 21; and a screw-less part 66. A coil spring 8 for pressing the blade body holder 3 to the holding part 21 side is externally fitted on a section of the shank 6 between the blade body holder 3 and the base part 23.

Description

  The present invention relates to a structure of an instrument capable of stripping off the covering of the overhead wire by a simple operation even if the overhead wire formed by covering the periphery of the core wire with an insulating coating is in a live state.

  A wire coating stripping tool for safely stripping the coating of a live overhead wire by remote control is already known as disclosed in, for example, Patent Document 1 and the like. An outline of the electric wire covering stripping tool described in Patent Document 1 includes a main body, a shaft portion, and an arm. The main body includes a holding portion, a base portion, a holding portion, and a base portion. And a substantially U-shape. Among these, the holding portion has a recessed groove that can be hooked on the covered electric wire on the base portion side, and the shaft portion has a screw portion in the entire range, and penetrates the base portion. It is inserted through the screw hole and can be moved parallel to the support part so as to be closer to the holding part, and has a blade holder at a position between the holding part and the base part at one end in the axial direction. It has a ring for engagement at the other end in the axial direction, and the blade body is attached to the blade body holder, and the blade body protrudes toward the concave groove and is disposed at a position to bite into the coating of the overhead wire. .

  And by the structure of the electric wire film stripping tool shown in Patent Document 1, the wire coating stripping tool in the state where the concave groove of the holding portion is hooked on the overhead wire is indirectly connected to the engaging ring. For example, by engaging a hook of a live tool such as a bind punch and rotating the engagement ring a plurality of times, the blade holder is brought close to the holding portion of the main body, and the concave groove of the holding portion and the blade holder Then, after the blade body of the blade holder is bitten into the coating of the overhead wire while being clamped with the overhead wire, the coating of the intermediate portion of the overhead wire can be stripped by rotating the wire coating stripping tool.

  However, in such work of tightening the overhead wire with the wire coating stripping tool, the worker often tightens the overhead wire by rotating the engagement ring with the hook of the bind hammer, and the stripping of the overhead wire is exclusively high-voltage wire. Since it is carried out on the three wires, there is a problem that fatigue to the arm of the worker is increased, and that the work for stripping the coating from the overhead wire is prolonged.

  For this reason, as shown in Patent Document 2, the applicant of the present application can reduce the fatigue level of the operator and work by simply performing the tightening operation of the wire when stripping off the covering of the intermediate portion of the wire. A patent application has been filed for the invention of the wire coating stripping tool that shortens the time.

  In the electric wire covering peeling tool shown in Patent Document 2, a magnet which is an urging means for urging the holding portion and the blade holder in a direction approaching each other while forming a portion not threaded on the main shaft, for example, Both the holding part and the blade holder are provided.

  Therefore, according to the electric wire covering peeling tool described in Patent Document 1, the blade holder at the tip of the main shaft is moved with the magnet of the holding portion by slightly lifting the main shaft upward toward the holding portion in the axial direction. A state in which the magnet of the blade holder is attracted to the holding portion without applying an external force due to the magnetic force that attracts each other, and the covered electric wire is held between the concave groove of the holding portion and the concave groove of the blade holder. It becomes.

JP-A-6-261432 JP 2010-22182 A

  However, in the electric wire covering peeling tool shown in Patent Document 2, since the magnetic force of the permanent magnet is used as an urging means for bringing the holding portion and the blade holder close together, the holding portion and the blade holder are separated by the magnetic force of the permanent magnet. In order to prevent adhesion, the distance between the holding part and the blade holder is adjusted so as not to be less than the required dimension, or the same positive electrode or negative electrode is mistakenly formed between the holding part and the blade holder. In order to prevent the magnetic force from acting in the direction in which the magnetic force holding portion and the blade holder are spaced apart from each other, it may be necessary to check the magnet pole provided in the holding portion and the magnet pole provided in the blade holder.

  Therefore, in the present invention, when the blade holder having the blade body is moved closer to the holding portion of the main body by rotating the shaft portion in order to peel off the coating that is an outer shell from the overhead wire on which the holding portion is hooked, the shaft portion It is an object of the present invention to provide an overhead wire stripping device that can reduce the rotational speed of the cable by using an elastic mechanism.

  An overhead wire stripping device according to the present invention is an overhead wire sheath stripping device for stripping the coating of an overhead wire formed by covering the periphery of a core wire with an insulating coating, and can contact the side surface of the overhead wire A holding part in which a simple groove part is formed, a blade holder close to the holding part, and only the covering of the overhead wire contacting the groove part of the holding part when the blade holder is closest to the holding part. The blade body attached to the blade body holder so as to bite in, and the engagement portion for engaging the indirect live tool at the other end portion with the blade body holder attached to one end portion is formed A shaft portion for moving the blade holder in a direction toward and away from the holding portion, and a threaded insertion hole arranged on the side facing the groove portion with respect to the holding portion and through which the shaft portion can be inserted. And the shaft portion includes A first screw portion for applying a pressing force for causing the blade body to bite into the sheath of the overhead wire when the blade body abuts on the sheath of the overhead wire, and the blade body holder is required from the holding portion. A second threaded portion for holding a separated state and a non-threaded portion between the first threaded portion and the second threaded portion, and the blade body of the shaft portion An elastic mechanism for pressing the blade holder to the holding portion side is attached to a portion between the holder and the base portion (Claim 1). Here, the overhead wire is, for example, a live overhead wire. In addition, the blade body includes, for example, a first blade body that abuts the overhead wire along the axial direction thereof, and a second blade body that abuts the overhead wire along the radial direction thereof. The engagement portion is, for example, an engagement ring. When the engagement portion is an engagement ring as described above, a bind hitting tool is used as an indirect hot wire tool to be engaged.

  As a result, in a state where the second screw portion is positioned in the insertion hole of the base portion, the second screw portion and the thread groove of the insertion hole of the base portion are in a state of being screwed together so that the blade body does not move. Even if an elastic mechanism for pressing the holder toward the holding part is attached to the shaft part, the end part of the shaft part to which the blade holder is attached is not displaced toward the holding part side. It is possible to fix the opening width to the side with a dimension larger than the radial dimension of the overhead wire. Further, in a state where it is located in the insertion hole of the base portion of the screwless portion, the blade body holder rotates the shaft portion by the force pressing the blade body holder of the elastic mechanism attached to the shaft portion toward the holding portion side. Even without it, it will approach the holding part. Furthermore, in a state where the first screw portion is positioned in the insertion hole of the base portion, the first screw portion and the screw groove of the insertion hole of the base portion are screwed and do not move. Even if the blade moves to the holding part side, the blade body holder stops with the blade body abutting against the covering of the overhead wire when the start portion of the first threaded portion is located in the insertion hole of the base portion. The body does not cut into the core of the overhead wire. Then, with the starting portion of the first screw portion positioned in the insertion hole of the base portion, the blade holder is moved toward the holding portion with a relatively strong force by rotating the shaft portion by the required number of rotations. Since it is displaced, it is possible to cause the blade body to bite into only the covering from the state where it contacts the covering of the overhead wire by using the pressing force of the blade body holder.

  In the overhead wire stripping device according to the present invention, the elastic mechanism is a coil spring sheathed on the shaft portion (claim 2). Thus, by using a coil spring as an elastic mechanism, it is not necessary to make an elastic mechanism into a complicated structure, and about a holding | maintenance part and a base part, it can remain with the existing coating | stripping stripping instrument.

  Further, in the overhead wire stripping device according to the present invention, the holding portion and the base portion are connected by a support portion, and the blade body holder is displaced along the support portion and has an indirect holding function. An arm for gripping with a live tool extends in a direction crossing the support portion from the opposite side of the holding portion having the groove portion (claim 3). An indirect hot wire tool having a gripping function is, for example, an insulating Yatco.

  As described above, according to the present invention, the shaft portion is slightly rotated so that the screwless portion is positioned in the insertion hole of the base portion, and thereafter, the elastic mechanism mounted on the shaft portion is Because the blade holder moves closer to the holding part without rotating the shaft part due to the force of pressing the blade body holder to the holding part side, the shaft is used to sandwich the overhead wire between the holding part and the blade body holder. Since the number of rotations for rotating the part can be reduced, the fatigue level of the operator can be reduced, and the working time for holding the overhead wire between the holding part and the blade holder can be shortened.

  In the state where the first screw portion is positioned in the insertion hole of the base portion, the first screw portion and the screw groove of the insertion hole of the base portion are screwed together so that the blade body holder does not move. Even if the blade moves to the holding part side, the blade body holder stops with the blade body abutting against the covering of the overhead wire when the start portion of the first threaded portion is located in the insertion hole of the base portion. It is possible to prevent the body from biting into the core material of the overhead wire.

  Further, when the shaft portion is rotated by a required number of rotations with the starting portion of the first screw portion positioned in the insertion hole of the base portion, the blade holder is held by the holding portion with a relatively strong force. Because the blade body is displaced to the side, it is possible to cause the blade body to bite into the sheath only from the state of contact with the sheath of the overhead wire using the pressing force of the blade body holder. Can be performed easily.

  On the other hand, according to the present invention, by rotating the shaft portion and positioning the second screw portion in the insertion hole of the base portion, the second screw portion and the screw groove of the insertion hole of the base portion can be obtained. Since the screw does not move due to screwing, the end portion of the shaft portion to which the blade holder is attached can be prevented from being displaced toward the holding portion even when the elastic mechanism is attached to the shaft portion. The blade holder can be fixed with a lateral opening width with the holding portion larger than the radial dimension of the overhead wire. Therefore, the operation | work which hooks a holding | maintenance part on an overhead wire can be performed easily.

  In particular, according to the invention described in claim 2, by using a coil spring as the elastic mechanism, the elastic mechanism does not need to have a complicated structure, and the holding part and the base part are left as existing covering stripping instruments. Therefore, it is possible to suppress an increase in the manufacturing cost of the coating stripping device.

FIG. 1 is an explanatory view showing the structure of an overhead wire sheath stripping device according to the present invention, FIG. 1 (a) is a side view of the overhead wire sheath stripping device, and FIG. FIG. 1C is a front view of an overhead wire sheath stripping device, and is an explanatory view showing a configuration of a shaft portion constituting the overhead wire sheath stripping device, with a spring removed. FIG. 2 is an explanatory view showing a state in which the blade holder is most opened with respect to the main body of the overhead wire stripping device. FIG. 3: is explanatory drawing which shows the state which pinched | interposed the holding | maintenance part of the main body on the overhead wire about the said covering wire stripping | exfoliation instrument, pinching | interposing an arm with an insulating jacket. FIG. 4 is an explanatory view showing a state in which the overhead wire covering and stripping device is held by holding the overhead wire between the holding portion of the main body and the blade holder, and the insulating jacket is removed from the arm. FIG. 5 shows a hook of a binding hammer on an engagement ring for rotating the shaft portion of the wire stripping device or rotating the blade holder of the wire stripping device around the overhead wire. It is explanatory drawing which shows the state which engaged.

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

  1 to 5 show an example of a coating stripping tool 1 according to the present invention. This covering stripping device 1 is configured so that, even when the overhead wire 100 formed by covering the core wire 101 shown in FIG. 4 with the insulating coating 102 is in a live state, the overhead wire 100, particularly in the middle portion of the overhead wire 100, can be remotely operated. Only the coating 102 can be safely peeled off. That is, this coating stripping device 1 is a device suitable for indirect hot wire work.

  As shown in FIGS. 1 and 2, the coating stripping device 1 basically includes a main body 2, a blade body holder 3, blade bodies 4 and 5, and a shaft portion 6.

  The main body 2 is substantially U-shaped when viewed from the side (in the axial direction of the overhead wire 100). The main body 2 has a holding portion 21 and a base portion 22 at a position facing the holding portion 21. A support portion 23 that extends linearly and connects the holding portion 21 and the base portion 22 is provided.

  The holding portion 21 has a groove 24 formed on the side facing the base portion 22. The concave groove 24 abuts the circumferential side surface of the overhead wire 100 without rattling, and the inner side surface of the concave groove 24 is substantially viewed from the axial direction of the overhead wire 100 so that the holding portion 21 can be hooked on the overhead wire 100. It has an arc shape. As shown in FIG. 1A, the base portion 22 is formed with a through hole 25 extending in parallel with the extending direction of the support portion 23, and the inner peripheral surface of the through hole 25 is threaded over the entire range. ing. The support part 23 supports the blade body holder 3 when the blade body holder 3 is displaced so as to be closer to the holding part 21, and is opposite to the concave groove 24 of the support part 23 (the back side of the support part 23. The blade holder 3 is displaced while the side surfaces of the guide member 35 described below are in contact with each other.

  The blade holder 3 is disposed between the holding portion 21 and the base portion 22, and the blade bodies 4, 5 extending between the two plate-like portions 31, 31 toward the concave groove 24 of the holding portion 21. is set up. As shown in FIG. 1 (b), the blade body 4 is arranged so that the blade edge hits the overhead wire 100 in contact with the concave groove 24 along the axial direction, and the blade body 5 is shown in FIG. As shown in a), two blade edges are arranged along the radial direction with respect to the overhead wire 100 in contact with the concave groove 24, and the blade body 4 and the two blade bodies 5, 5, It has a U-shaped arrangement. And the extension width to the holding | maintenance part 21 side of the blade body 4 is extended to the holding | maintenance part 21 side of both the blade bodies 5, as FIG.1 (a), FIG.1 (b) and FIG. 2 show. Since the width is larger than the protruding width, the blade body 4 can hit the overhead wire 100 in a state where the blade body 4 is in contact with the concave groove 24 before the blade body 5.

  Further, in this embodiment, the blade holder 3 is laterally outside the blade bodies 4 and 5 (in the axial direction of the overhead wire 100) as shown in FIGS. 1 (a), 1 (b) and 2. Further, thin rectangular parallelepiped block bodies 32, 32 are arranged. Each block body 32 is urged toward the blade bodies 4 and 5 by a coil spring 34 that is externally mounted on the bolt 33. The block body 32 is covered with the coating 102 and the portion where the coating 102 of the overhead wire 100 is peeled off and the core wire 101 is exposed when the coating 102 of the overhead wire 100 is continuously peeled along the axial direction. A step is generated depending on the thickness of the covering 102 with the overhead wire 100 as it is, but even if this step is present, the blades 4 and 5 are brought into contact with the core wire 101 of the overhead wire 100 so that the blade bodies 4 and 5 can be directly bitten. is there.

  Further, the blade holder 3 has a protruding portion 31a that protrudes to the side of the support portion 23 with respect to each plate-shaped portion 31, and a cylindrical guide member 35 is installed between the protruding portions 31a and 31a. Yes. The guide member 35 may be rotatable. As a result, when the blade holder 3 is displaced so as to move closer to the holding portion 21, the guide member 35 continues to come into contact with the outer surface of the support portion 23 opposite to the concave groove 24. Can be prevented.

  The shaft portion 6 is for moving the blade holder 3 in a direction away from the holding portion 21, has a linear, substantially cylindrical shape, and has one longitudinal direction as shown in FIG. A head 61 having an end projecting radially outward from the main body portion is rotatably attached to the blade holder 3, and an engagement ring 62 having a through hole 62a is formed at the other end in the longitudinal direction. .

  Although not shown, the blade holder 3 opens to the side opposite to the blade bodies 4 and 5 and is slightly larger than the outer diameter size of the main body portion of the shaft portion 6 and larger than the outer diameter size of the head portion 61. The head portion of the shaft portion 6 has a small diameter hole portion having a small inner diameter size and a hole portion which is located on the back side of the small diameter hole portion and is slightly larger than the outer diameter size of the head portion 61. The part 61 is accommodated in the large-diameter hole. Thereby, even if the head 61 rotates, the blade holder 3 does not rotate. On the other hand, when the shaft portion 6 is displaced (advanced) toward the holding portion 21, the head 61 is positioned in the large-diameter hole of the blade holder 3. When the inner surface is pushed up to push up the blade holder 3 and the shaft portion 6 is displaced (retracted) to the opposite side of the holding portion 21, the head 61 is caught by the step portion between the large diameter hole portion and the small diameter hole portion, The blade body holder 3 can be driven on the side opposite to the holding portion 21.

  As shown in FIG. 5, the engagement ring 62 can be engaged with the hook 301 of the bind hitter 300 of the indirect live tool by inserting the hook 301 into the through hole 62 a. The shaft portion 6 can be pushed up or pulled down, or the shaft portion 6 can be rotated clockwise or counterclockwise. Since the bind hammer 300 is a well-known one, the description thereof is omitted.

  An annular member 60 is provided between the base portion 22 of the shaft portion 6 and the engagement ring 62, and this annular member 60 prevents the blade bodies 4, 5 from biting into the core wire 101 of the overhead wire 100. It is a stopper. In other words, when the shaft portion 6 is displaced toward the holding portion 21 side, the annular member 60 comes into contact with the base portion 22 so that the shaft portion 6 is not displaced further toward the holding portion 21 side. 3 is prevented from being unnecessarily displaced toward the holding portion 21, so that the blade bodies 4 and 5 do not bite into the core wire 101 of the overhead wire 100.

  And the arm 7 protrudes from the outer surface which becomes the opposite side to the side which has the ditch | groove 24 of the holding | maintenance part 21. As shown in FIG. The arm 7 has a rod-like shape extending linearly, and in this embodiment, has a ring portion 71 capable of hooking the hook 301 of the bind hammer 300 and the like at the tip. Thereby, as shown in FIG. 3, the arm stripping device 1 can be lifted or lowered while the arm 7 is sandwiched between the gripping portions 201 and 202 of the insulative hot wire insulating jig 200. Since the insulating Yatco 200 is a known one, its description is omitted.

  By the way, in the coating stripping instrument 1 according to the present invention, as shown in FIG. 1 (c), the body portion of the shaft portion 6 is not entirely a screw portion, and the head portion 61 side (shaft portion) 6 at the upper part), a screw part 64 positioned above the annular member 60, and a screwless part 66 positioned therebetween. In FIG. 1C and the like, the shaft lower portion 63 between the annular member 60 and the engagement ring 62 is also connected to the screw portion 64 so as to be able to adjust the position of the annular member 60. However, in the case where the annular member 60 is fixed, the shaft lower portion 63 may be a screwless portion (not shown).

  The threaded portion 64 rotates the shaft portion 6 so that the blade tips of the blade bodies 4 and 5 can bite into the sheath 102 of the overhead wire 100 from the state where the blade tip of the blade body 4 is at least in contact with the sheath 102 of the overhead wire 100. The blade holder 3 is moved forward to the holding portion 21 side to displace and tighten the blade holder 3 to the holding portion 21 side, and the number of threads is at least one or more.

  The screw portion 65 is for fixing the position of the blade holder 3 while maintaining the opening width between the holding portion 21 and the blade holder 3 so that the overhead wire 100 can be smoothly mounted. The number of threads is at least one thread so that the coil spring 8 described below can be rotated one or more threads in a contracted state.

  The unthreaded portion 66 is a cylindrical portion having no thread, and the outer diameter dimension thereof is slightly smaller than the inner diameter dimension of the through hole of the base portion 22.

  In the coating stripping device 1 according to the present invention, as shown particularly in FIGS. 1 (a) and 1 (b), a portion of the shaft portion 6 between the blade holder 3 and the base portion 22 is disposed. A coil spring 8 is externally provided as an elastic mechanism. The lower end portion of the coil spring 8 is in contact with the upper surface of the base portion 22 (the side surface opposite to the engagement ring 62), and the upper end portion thereof is the lower surface of the blade holder 3 (the side surface opposite to the holding portion 21). The inner diameter dimension is larger than the maximum outer diameter dimension of the thread portion of the threaded portion 64 and the threaded portion 65. The coil spring 8 presses the blade holder 3 toward the holding portion 21 side.

  In the coating stripping tool 1 having such a configuration, the holding portion 21 is hooked on the overhead wire 100 so that the overhead wire 100 is sandwiched between the holding portion 21 and the blade body holder 3, and the blade body 4 of the blade body holder 3, A process of stripping the coating 102 from the overhead wire 100 after 5 is bited into the coating 102 of the overhead wire 100 will be described below.

  First, the engagement ring 62 is rotated at a small number of rotations such as one rotation at a worker's hand or the like so that the screw portion 65 of the shaft portion 6 is positioned in the through hole 25 of the base portion 22. As a result, the shaft portion 6 is in a state of being screwed with the through hole 25 of the base portion 22 at the screw portion 65, so that the opening between the holding portion 21 and the blade holder 3 is provided as shown in FIG. The position of the blade holder 3 is fixed in a state where the width is maintained so that the overhead wire 100 can be smoothly mounted. At this time, the coil spring 8 is in the most contracted state, and the contracted state is maintained.

  Next, as shown in FIG. 3, the arm 7 is gripped by the gripping portions 201 and 202 of the insulating jacket 200 with respect to the covering stripping device 1 in the above-described state, and the covering stripping device 1 is placed above the overhead line 100. 3, the covering stripping instrument 1 is lowered so that the concave groove 24 of the holding portion 21 covers the upper side of the circumferential side surface of the overhead wire 100, and as shown in FIG. It is in a state of being hooked on the overhead line 100.

  Then, as shown in FIG. 5, the hook 301 of the bind hammer 300 is inserted into and engaged with the through hole 62a of the engagement ring 62, and the bind hammer 300 is rotated, for example, once in the opposite direction. Rotate at a low speed. Thereby, since the screw part 65 comes off from the through-hole 25 of the base part 22 and the screwless part 66 comes to be located in the through-hole 25 of the base part 22, the shaft part 6 becomes a blade. The screwed state with the body holder 3 is released, and the coil spring 8 is released from the most contracted state. However, as shown in FIG. 4, the blade body holder 3 is displaced toward the holding portion 21 by the pressing of the coil spring 8 without rotating the shaft portion 6, and at least the blade edge of the blade body 4 is connected to the overhead wire 100. The state hits the coating 102.

  At this time, all of the unthreaded portion 66 of the shaft portion 6 passes through the through hole 25 of the base portion 22 and the start portion of the screw portion 64 of the shaft portion 6 is located below the through hole 25 of the base portion 22. Since the further movement of the shaft portion 6 toward the holding portion 21 is restricted, the blade edges of the blade bodies 4 and 5 do not bite into the covering 102 of the overhead wire 100.

  Further, with the start portion of the screw portion 64 of the shaft portion 6 positioned below the through hole 25 of the base portion 22, the bind striker 300 is rotated in a required direction with a small number of rotations, for example, one rotation, thereby screwing Since the portion 64 enters the through hole 25 and the shaft portion 6 is displaced to the holding portion 21 side with a relatively strong force, the blade body holder 3 tightens the overhead wire 100, and the blade bodies 4, 5 are covered with the hardness of the covering 102. The coating 102 can be bitten against elasticity.

  Finally, by rotating the bind hammer 300 in the direction of the arrow in FIG. 5 with the overhead wire 100 as the center of rotation, the covering 102 is peeled off from the core wire 101 of the overhead wire 100 by the blade body 4 and the blade body 5. It is done.

  As described above, according to the coating stripping tool 1 according to the present invention, the screwed state between the shaft portion 6 and the base portion 22 is released with a small number of rotations such as one rotation with respect to the live wire 100. The coil spring 8 is released from the contracted state and the blade holder 3 is released from the fixed state. Thereafter, the blade holder 3 is moved toward the holding portion 21 by the pressing force of the coil spring 8 without rotating the shaft portion 6. Since it can be displaced, it is possible to reduce the fatigue level of the worker.

DESCRIPTION OF SYMBOLS 1 Cover stripping tool 2 Main body 21 Holding part 22 Base part 24 Concave groove 25 Through-hole 3 Blade body holder 34 Coil spring 4 Blade body 5 Blade body 6 Shaft part 60 Annular member
62 Ring for engagement (engagement part)
62a Through-hole 63 Lower shaft portion 64 Screw portion (first screw portion)
65 Screw part (second screw part)
66 Unthreaded part 8 Coil spring (elastic mechanism)
DESCRIPTION OF SYMBOLS 100 Overhead wire 101 Core wire 102 Coating | covering 200 Insulating Yatco 201 Gripping part 202 Gripping part 300 Bind hammer 301 Hook

Claims (3)

In the wire stripping and stripping device for stripping off the coating of the overhead wire that is covered with an insulating coating around the core wire,
A holding part in which a groove part capable of contacting the side surface of the overhead wire is formed, a blade holder that is close to the holding part, and a groove part of the holding part when the blade holder is closest to the holding part. A blade body attached to the blade body holder so as to bite only into the covering of the overhead wire in contact with the blade body holder, and the blade body holder is attached to one end portion, and the indirect live tool is engaged with the other end portion. Are formed on the side facing the groove portion with respect to the holding portion, and the shaft portion can be inserted therethrough. A base having a threaded insertion hole,
The shaft portion includes a first screw portion for applying a pressing force for causing the blade body to bite into the covering of the overhead wire when the blade body comes into contact with the covering of the overhead wire, and the blade body holder includes: A second screw portion for holding a state separated from the holding portion by a required dimension, and a screwless portion between the first screw portion and the second screw portion are formed;
An elastic mechanism for pressing the blade holder toward the holding portion is attached to a portion of the shaft portion between the blade holder and the base portion. Toiletries.   The apparatus for stripping and removing an overhead wire according to claim 1, wherein the elastic mechanism is a coil spring packaged on the shaft portion.   The holding portion and the base portion are connected by a support portion, and the blade holder is displaced along the support portion, and an arm for holding with an indirect live tool having a front holding function is provided on the holding portion. The overhead wire stripping-off instrument according to claim 1 or 2, characterized in that it extends in a direction crossing the support portion from the side opposite to the side having the groove portion.

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