JP2010022182A - Wire coating stripping tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wire coating stripping tool for tightening electric wires and removing coatings from the electric wires easily, thereby mitigating operator's degree of fatigue and shortening of working hours. <P>SOLUTION: The tool is mounted on a coated electric wire with an indirect hot wire tool, and rotated around it to strip and remove the coating of the coated wire at once with a predetermined width. The tool includes: an almost channel-shaped body having a holding portion and a base portion, each being projected at almost right angle from each elongated-directional end of the inner face of a guide portion, while a first arm is provided upright on the outer face thereof; a main shaft passing through a screw hole, which passes through the base portion, and thereby capable of moving inside the body in parallel with the guide portion, and having a blade holder at an inner edge of the body and an operation end at an outer edge portion thereof, while a screw to be engaged with the screw hole of the base portion is engraved around a region near the operation end; and an energizing means for energizing the holding portion and the blade holder to a direction where they may approach mutually. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electric wire coating peeling tool used when peeling an electric wire coating in an indirect hot wire operation.

  Conventionally, in the repair work of a transmission / distribution electric line, there is a case where it is necessary to remove an insulation coating (hereinafter simply referred to as a covering) of an aerial coated electric wire while the electric line is in a live state. In this case, in order to ensure the safety of work, an electric wire covering peeling tool which can operate an indirect hot wire tool remotely is used. Recently, not only the safety of work but also an electric wire covering peeling tool for simplifying the work has been proposed.

  FIG. 8 is a perspective view showing an example of a conventional wire coating peeling tool, and FIG. 9 is a front view and a side view of the conventional example shown in FIG. 8 (however, these two drawings are denoted by reference numeral 21). The position of the member (blade holder) has been changed.) As shown in these drawings, the wire covering / peeling tool 5 includes a main body 10, a main shaft 20, and an arm 30.

  The main body 10 includes a guide portion 11 having a substantially bullet-like plane that is continuously and symmetrically approached in a curved shape on both side edges in a front view, and ends on the head side and the rear side thereof. The main body 10 is composed of a holding part 12 and a base part 13 erected at substantially right angles to the plane of the part so as to face each other, and the main body 10 as a whole is substantially U-shaped in cross section parallel to its length direction. Is formed. The holding portion 12 has a surface facing the base portion 13 of the substantially U-shaped main body 10 so that the contact area with the outer periphery of the aerial covered electric wire can be increased to hold the covered electric wire. A concave groove 12 a having a substantially semicircular cross section is provided in a direction parallel to the plane of the guide portion 11. Further, the base portion 13 is formed with a screw hole 13a that opens substantially parallel to the length direction of the guide portion 11, and a main shaft 20 described later is screwed into the screw hole 13a.

  A screw is engraved in the main shaft 20 over its entire length in the axial direction, and the main shaft 20 is threaded through a screw hole 13 a provided in the base portion 13. The inner end of the main shaft 20 located inside the substantially U-shaped main body 10 rotates to a blade holder 21 having a length similar to the length of the concave groove 12a of the holding portion 12 in a direction perpendicular to the axial direction. The eye handle 27 is attached to the outer end. A tightening nut 25 is screwed into a screw portion between the base portion 13 and the eye handle 27. When the eye handle 27 is rotated, the main shaft 20 can be moved back and forth in the inner and outer directions of the main body 10 depending on the rotation direction. For example, by rotating the main shaft 20 clockwise (clockwise), the main shaft 10 moves forward, and the blade holder 21 provided at the inner end of the main body 10 moves along the guide portion 11 to the holding portion 12. It can be moved in the approaching direction. Conversely, by rotating the spindle 20 counterclockwise (counterclockwise), the blade holder 21 can be moved away from the holding portion 12.

  A single-edged blade 22 is attached to the blade holder 21. The blade body 22 is held in a state in which the blade is directed substantially parallel to the length direction of the blade body holder 21 and the blade is directed outward (in a direction away from the plane of the guide portion) on the front side of the blade body holder 21. It is attached in a state of projecting toward the side edge region of the concave groove 12a on the front side of the portion 12. The blade holder 21 is also provided with a concave groove 28 that opposes the concave groove 12a of the holding portion 12. By bringing the blade holder 21 close to the holding portion 12, the blade holder 21 is covered with the two concave grooves 12a and 28. The electric wire can be securely restrained and held.

  The blade holder 21 is provided with guards 23 and 23 at positions corresponding to both ends in the length direction of the blade 22. These guards 23, 23 are fixed to the blade holder 22 by screws 24, 24. A compression coil spring 24 is fitted on the shaft of each of the screws 24, 24, and the outside of the guards 23, 23. The free ends projecting from each other are biased in a direction approaching each other. The guards 23 and 23 are used to hold the coating peeled off from the electric wire from both sides.

  The arm 40 is a rod-like member formed to protrude from the back side of the guide portion 11 in the main body 10, and a ring 31 is attached to the tip in the protruding direction. Since the protruding direction of the arm 40 is normally substantially perpendicular to the back surface of the guide portion 11, the direction of the arm 40 including the ring 41 and the main shaft 20 including the eye handle 27 is approximately perpendicular. It is in a positional relationship.

  Such a conventional wire sheath peeling tool 5 is normally used as follows in repair work of a sheathed wire of an aerial transmission / distribution electric line (see FIGS. 10 and 11). An operator operates an indirect live wire gripping tool such as a Yatsuko with one hand to grip the arm 40, and a holding portion of the main body 10 of the wire covering stripping tool 5 on a portion where the covering of the aerial sheathed electric wire W is to be stripped. Hook 12 At this time, the groove 12a of the holding portion 12 is just engaged with the upper surface of the electric wire. Next, the operator operates the indirect hot wire operating rod 72 with the other hand, and inserts the bind hammer 71 fixed to the tip thereof into the ring hole of the eye handle 27, and in this state, the electric wire passes through the concave groove 12a. While pulling the bind striker downward so as not to come off, the operation handle is operated to rotate the eye handle 27 to advance the main shaft 20 in the axial direction, and the blade holder 21 is brought close to the holding portion 12.

  Normally, by rotating the eye handle 27 about seven times, the electric wire is clamped and held between the concave groove 12a of the holding portion 12 and the concave groove 24 of the blade holder 21 as shown in FIG. Become. At this time, since the blade body 22 is in a state of being cut into the wire coating on the front side of the wire coating peeling tool, the bind hammer 71 is inserted into either the eye handle 27 of the spindle 20 or the ring 31 of the arm 30 ( By rotating the wire covering peeling tool 5 (inserted into the arm 40 in FIG. 11) around the wire, the covering S of the wire W can be peeled by the width of the blade body 22. In this case, the stripped coating S is held in a state in which both sides thereof are sandwiched between the guards 23 and 23 as shown in FIG.

After stripping the sheath S from the wire W, the arm 30 of the wire sheath stripping tool 5 is gripped with a Yatco and the tip of the bind hammer 320 is inserted into the ring of the eye handle 27 of the spindle 20 to rotate the spindle 20. Then, the blade holder 21 is loosened away from the concave groove 12a. Thereby, the clamping state of the electric wire W between the concave groove 12a of the holding | maintenance part 12 and the concave groove 24 of the blade body holder 21 is cancelled | released, and the electric wire coating peeling tool 5 can be removed from the electric wire W.
JP-A-6-261432

  However, in the above-described conventional wire sheath stripping work using the wire sheath stripping tool, when attaching the wire sheath stripping tool to the electric wire, the operator must use both hands to hold the indirect live wire gripping tool and the indirect live wire operation rod. Each of the above is operated, the wire coating peeling tool is hooked on the electric wire, and the eye handle is rotated about seven times to tighten the electric wire. For this reason, the worker's fatigue is remarkable, and the working time required for peeling the wire coating varies greatly depending on the skill and physical strength of the worker.

  Further, when removing the wire covering / peeling tool from the electric wire, it is necessary to rotate the eye handle in the same number of times by the same operation, which is one of the factors that increase the working time.

  Therefore, in order to solve the above-described problems, the present invention can easily perform the work of tightening and removing the electric wire from the electric wire in the indirect hot wire method, thereby reducing the worker's fatigue and the work. An object of the present invention is to provide an electric wire coating peeling tool that can shorten the time.

  The object is a tool used for attaching to a covered electric wire using an indirect hot wire tool, rotating around it, and stripping and removing the covering of the covered electric wire at a predetermined width, A substantially U-shaped main body having a holding portion and a base portion projecting in a direction substantially perpendicular to both ends in the length direction of the inner surface of the guide portion on which the first arm is erected on the outer surface; and the base portion The inside of the main body is inserted into a threaded hole that penetrates and can be moved in parallel with the guide portion, and has a blade holder at the inner end portion of the main body and an operation end at the outer end portion, and is closer to the operation end. The region includes a main shaft in which a screw that can be screwed into a screw hole of the base portion is formed on an outer periphery thereof, and a biasing unit that biases the holding portion and the blade body holder in a direction approaching each other. This is achieved by a wire coating peeling tool characterized by the above.

  The urging means is not particularly limited, and may be one that constantly urges the blade holder toward the holding portion, and is capable of controlling the timing and generation time for generating the urging force. May be. In addition, the urging force requires a slight external force to move the blade holder, but it is preferable to set the urging force to a magnitude that is close to the holding portion when it starts to move. Specific examples of such urging means include, for example, known elastic bodies such as various springs, and magnets such as permanent magnets and electromagnets. These urging means can be attached in accordance with ordinary methods at appropriate positions of the main shaft including the holding portion and the main body including the blade holder depending on the type of the biasing means. The latter magnet is preferably used as the urging means in that no connecting member is interposed and it is not necessary to accommodate the member or provide a movable space.

  Moreover, the 2nd arm by which an axial direction orthogonally crosses with respect to the axial direction of the said arm may be standingly arranged in the outer surface of the holding | maintenance part in the electric wire covering peeling tool of this invention.

  Further, the blade holder is configured to guide the coating peeled off with a width substantially equal to the blade body to the operation end side along the front surface of the blade holder and to hold the coating. There may be provided guiding means. Preferably, the guide means includes a movable part that is biased toward the front surface of the blade holder and holds the covering. As the urging means, the same or different urging means as described above can be used.

  According to the wire sheath peeling tool of the present invention, the attachment to the wire and the removal from the wire are facilitated, the fatigue of the operator is reduced and the time required for the wire sheath peeling is shortened. The efficiency of the stripping operation can be improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1-3 has shown the example of a structure of the electric wire coating peeling tool 100 as embodiment. The wire covering / peeling tool 1 has a main body 10, a main shaft 20, a first arm 40, and a second arm 42.

  The main body 10 includes a guide part 11, a holding part 12, and a base part 13. The guide portion 11 includes a substantially bullet-shaped plane in which both side edges in the longitudinal direction are curved and approach each other continuously and symmetrically when viewed from the front, and the width of the plane perpendicular to the direction is the head of the shell. The side corresponding to the part is about ½ of the side corresponding to the rear part. Examples of the material of the main body 101 include an aluminum alloy.

  The holding part 12 and the base part 13 are respectively erected substantially perpendicular to the plane of the part so as to face each other on the head part side and the rear part end part of the guide part 11, and the main body 10 has its length as a whole. It is formed in a substantially U-shaped cross section parallel to the vertical direction. The holding portion 12 has a surface facing the base portion 13 of the substantially U-shaped main body 10 so that the contact area with the outer periphery of the aerial covered electric wire can be increased to hold the covered electric wire. A concave groove 12 a having a substantially semicircular cross section is provided in a direction parallel to the plane of the guide portion 11. Further, the base portion 13 has a screw hole 13a that is opened substantially in the center in parallel with the length direction of the guide portion 11 and into which a main shaft 20 to be described later is screwed.

  Protrusions 12b and 12b are respectively provided at both ends in the axial direction of the concave groove 12a of the holding part 12, and magnets 32 are formed on the lower parts thereof as urging means so as to match the shape of the lower part. 32 are fixed (in FIGS. 1 and 2, only one of the protrusion 12b and the magnet 32 is shown). There is no restriction | limiting in particular as a magnet used here, A permanent magnet, an electromagnet, etc. can be used. Here, examples of the permanent magnet include a ferrite magnet, a neodymium magnet, a samarium cobalt magnet, and an alnico magnet. Here, the ferrite magnet is manufactured by firing iron oxide as a main raw material and an auxiliary raw material, and has a property that the magnetic flux density is low but the holding power is high and it is difficult to demagnetize. A neodymium magnet is a kind of rare earth magnet mainly composed of neodymium, iron and boron, has a high magnetic flux density and exhibits ferromagnetism. The samarium-cobalt magnet is obtained by firing two kinds of raw materials samarium and cobalt at a predetermined composition ratio, and exhibits ferromagnetism. The alnico magnet is obtained by blending and firing raw materials such as aluminum, nickel, and cobalt at a predetermined composition ratio. Any of these may be used alone or in combination. Among these, it is preferable to use a magnet having ferromagnetism.

  A screw is engraved in the main shaft 20 over its entire length in the axial direction, and the main shaft 20 is threaded through a screw hole 13 a provided in the base portion 13. The inner end of the main shaft 20 positioned inside the substantially U-shaped main body 10 is rotatably connected and fixed to the blade holder 21, and an eye handle 27 is attached to the outer end. An engagement ring 25 is screwed into a screw portion between the base portion 13 and the eye handle 27. By rotating the eye handle 27, the main shaft 20 can be advanced and retracted in the inner and outer directions of the main body 10 depending on the rotation direction. For example, by rotating the main shaft 20 clockwise (clockwise), the main shaft 10 moves forward, and the blade holder 21 provided at the inner end of the main body 10 moves along the guide portion 11 to the holding portion 12. It can be moved in the approaching direction. Conversely, by rotating the spindle 20 counterclockwise (counterclockwise), the blade holder 21 can be moved away from the holding portion 12. Examples of the material of the shaft portion on which the main shaft 20 screw is engraved include steel for machine structure. In addition, examples of the material of the eye handle 27 of the main shaft 20 include an aluminum alloy.

  The blade body holder 21 is provided with a single-edged blade body 22. The blade 22 protrudes toward a predetermined position near the front of the concave groove 12a of the holding portion 12 with the blade portion facing outward (opposite the guide portion) on the front side of the blade holder 21. It is attached to the state. The blade holder 21 is also provided with a concave groove 28 facing the concave groove 12a of the holding portion 12. By bringing the blade holder 21 closer to the holding portion 12, the two concave grooves 12a, 28, the covered electric wire can be securely restrained and clamped. The blade holder 21 has a width corresponding to the length of the concave groove 12 a of the holding portion 12 in a direction perpendicular to the axial direction of the main shaft 20. Examples of the material of the blade body 21 include stainless steel.

  In addition, on the back sides of the blade holder 21 on both sides in the width direction, the blade holders 21 are directed to the holding portions 12 in parallel to the axial direction of the main shaft 20 at positions that do not hinder even when the electric wires are accommodated in the concave grooves 28. Protruding portions 21b and 21b are formed. Magnets 33 and 33 (biasing means) as counterparts of the magnet 32 are fixed to a cross section perpendicular to the protruding direction, respectively, on the entire projection part 21b or a part on the tip side. The magnets 33 and 33 are opposite in polarity to the magnet 32 so as to attract each other between the magnets 32 and 33. The magnet 33 can be the same or different from the magnet 32 described above.

  The blade holder 21 is provided with guards 23 and 23 at positions corresponding to both ends of the blade 22. These guards 23, 23 are fixed to the blade holder 22 by screws 24, 24, respectively. The screws 24, 24 are fitted on the shafts of the compression coil springs 24, and are respectively placed outside the guards 23, 23. The protruding free ends are biased in a direction approaching each other. The guards 23 and 23 are for sandwiching the coating peeled off from the electric wire.

  The first arm 40 is a rod-like member formed to protrude from the guide portion 11 in the main body 10, and a ring 41 is attached to the tip in the protruding direction. Since the protruding direction of the arm 40 is normally substantially perpendicular to the back surface of the guide portion 11, the direction of the arm 40 including the ring 41 and the main shaft 20 including the eye handle 27 is approximately perpendicular. It is in a positional relationship.

  The second arm 42 is a rod-like body having the same shape and size as the first arm 40 described above, and is erected substantially parallel to the axial direction of the main shaft 20 from the outer surface of the holding portion 12 of the main body 10. Although the standing position of the second arm 42 on the outer surface of the holding portion 12 is not particularly limited, it is preferable that the axis of the second arm 42 is substantially aligned with the axis of the main shaft 20.

  Next, the usage method of the electric wire coating peeling tool 1 of this embodiment is demonstrated. The electric wire coating peeling tool 1 of the present invention is used in repair work of a covered electric wire of an aerial transmission / distribution electric wire path, like the conventional electric wire coating peeling tool 5. FIG. 3 is a perspective view showing a method for mounting the wire covering / peeling tool 1 of this embodiment to the overhead electric wire W. FIG. An operator (not shown) operates an indirect hot wire gripping tool such as a Yatsuko with one hand to grip the arm 40, and the main body of the wire covering stripping tool 1 is placed on the portion of the overhead coated wire W to be stripped. The holding part 12 in 10 is hooked. At this time, the wire covering / peeling tool 1 of the present invention is removed from the electric wire W so that the concave groove 12a of the holding portion 12 is engaged with the upper surface of the electric wire W, and the Yatco 70 is pulled downward toward the drawing. Try not to come off.

  The operator operates the indirect hot wire operating rod 72 with the other hand, and inserts the tip of the bind hitter 71 fixed to the tip of the rod into the ring hole of the eye handle 27 (see FIG. 3). Then, the main shaft 20 is slightly lifted upward toward the drawing so as to approach the holding portion 12 in the axial direction via the eye handle 27. As a result, the blade holder 21 is attracted to the holding portion 12 without the operator exerting further external force due to the magnetic action of the magnets 32 and 33 attracting each other, and the end on the blade holder 21 side of the screw portion 31 of the main shaft 20 is the main body. 10 is held in contact with the screw holes 13 a of the base portion 13, and the electric wire W is held in a state of being held between the holding portions 12 and the respective recessed grooves 12 a and 28 of the blade holder 21.

  In this state, the operating rod 72 is operated to rotate the eye handle 27 via the bind hammer 71 to advance the spindle 20 in the axial direction while rotating the spindle 20 around its axis, and the blade holder 21 is further held by the holding portion 12. To approach. By approaching in this way, the electric wire W is securely held between the concave groove 12a of the holding portion 12 and the concave groove 28 of the blade body holder 21, and the blade body 22 (not shown in FIG. 4). Bites into the coating S of the electric wire W. Thus, by screwing the screw portion 31 of the main shaft 20 into the screw hole 13a of the base portion 13, the electric wire W is provided in the grooved groove 12a provided facing the blade body holder 21 and the holding portion 12, respectively. Thus, the blade body 22 is held in a state of being bitten into the electric wire W.

  In this state, the operating rod 72 is operated to insert the tip of the bind hammer 71 into either the eye handle 27 of the main shaft 20, the ring 41 of the first arm 40 or the ring 43 of the second arm 42, as shown in FIG. Thus, this time, the wire sheath peeling tool 1 is rotated around the wire W. When it becomes difficult to further rotate this from the position of the operator, the tip of the bind hitter 71 is reinserted into the rings 41 and 43 of the arms 40 and 42 or the eye handle 27 in another position. The wire coating peeling tool 1 is rotated in the same direction. By repeating this operation, the coating S of the electric wire W can be peeled off with the width of the blade body 22. In this case, in the wire covering / peeling tool 1 of the present embodiment, the second arm 42 is provided on the main body 10 to increase the number of rings, so that it becomes easier to insert the tip of the bind hammer 71 and the operation is also easy and efficient. It becomes. The stripped coating S is discharged from the gap between the holding portion 12 and the blade holder 21 toward the eye handle 27 along the front surface of the blade holder 21 (see FIG. 5).

  At that time, the electric wire coating peeling tool 1 of the present invention can be provided with guiding means for guiding and holding the coating S peeled off along the front surface of the blade holder 21. FIGS. 6A and 6B are diagrams showing an example of such a guide means, where FIG. 6A is a perspective view, and FIG. 6B is a plan sectional view obtained by cutting the guide means 45 along a one-dot chain line L in the perspective view. Is shown. The guide means 45 shown in this figure is composed of an outer frame body 46, a pressing plate 47, biasing means 48, 48,.

  The outer frame body 46 has fixing pieces 461 and 461 so that the outer frame body 46 can be fixed to the projecting portions 21a and 21a projecting toward the holding portion 12 on both sides of the blade body 22 of the blade body holder 21 at both ends in the length direction. Each has a substantially U-shaped belt shape. Insertion holes 46a and 46a through which the fixtures 49 and 49 are inserted are respectively formed in the central regions of the respective fixing pieces 461 and 461 (see FIG. 6B). By inserting a fixing tool such as a cap screw into each of the insertion holes 46a and 46a and screwing them into the screw holes provided in the protrusions 21a and 21am, the protrusions are formed inside the outer frame body 46. The pressing plate 47 is movably fixed in a state of being biased in a direction away from the inner surface of the outer frame body 46 via springs 48, 48,... As biasing means.

  By providing such a guide means 45 on the front surface of the blade body holder 21, the coating S peeled off from the electric wire W by the blade body 22 is formed between the pressing plate 47 of the guide means 45 and the front surface of the blade body holder 21. Between them and inserted through the gap between them. In this case, the urging force of the springs 48, 48,... Acts on the holding plate 47, so that the coating S is held, and this guide is provided even when the coating S is completely peeled off from the electric wire W. The means 45 can reliably prevent the covering S from being held and dropped.

  Next, the worker holds the grip portion of the frame 104 with the left-hand insulating jacket 310 in the same manner as when attaching, and in that state, inserts the tip of the right-hand bind hammer 71 into the eye handle 27 of the spindle 20 and 20 is rotated and loosened several times so that the blade holder 21 moves away from the groove 12a. After that, the blade holder 21 is operated by operating the operation rod 72 against the pulling force between the magnets 32 and 33 between the holding portion 12 and the blade holder 21 to pull the bind hammer 71 downward. The state where the electric wire W is clamped by the concave groove 12a of the holding part 12 and the concave groove 28 of the blade holder 21 is released by being separated from the holding part 12.

  In this state, the operator places the bind hitter 71 on the ring of any one of the first arm 40, the second arm 42, and the eye handle 27 at a position where the tip of the bind hitter 71 operated with one hand can be easily inserted. Is removed, and the wire covering / peeling tool 100 is removed from the wire, thereby completing the stripping operation of the covering S from the wire W using the wire covering / peeling tool 1 of the present invention.

  As described above, in the wire sheath peeling tool 1 according to the present invention, the screw portion 31 is engraved only near the outer end (operation end) of the main shaft 20, and the screw is not engraved in other portions. The rotation operation of the spindle can be made unnecessary, and the blade holder can be easily brought close to the holding portion. Thereby, a worker's fatigue can be remarkably reduced and work efficiency can be improved.

  Further, in the wire coating peeling tool of the present embodiment, the second arm can be provided at a position substantially orthogonal to the first arm, and the rings can be provided radially in three directions substantially orthogonal to each other from the electric wire. When stripping the coating, the tip of the present invention can be rotated by inserting a tip of a bind punch or the like into a ring in a region where the tool of the present invention can be easily rotated around its axis. Thereby, it is possible to perform the stripping operation of the electric wire more easily and in a shorter time than before, and the efficiency of the operation can be achieved.

  Furthermore, in the wire coating peeling tool of this embodiment, since the guide means is provided in the blade holder as described above, the coating is securely held while being peeled off from the wire and after being completely peeled off. This can prevent the stripped coating from falling.

  As described above, the wire coating peeling tool of the present invention peels off the coating (insulating coating) from the transmission / distribution wires at a predetermined width in a lump in the live state in the repair work of the overhead transmission / distribution distribution wires. Useful for work.

It is a perspective view showing an example of an embodiment of an electric wire covering exfoliation tool of the present invention. It is the front view and side view of embodiment which are shown in FIG. It is a perspective view explaining the usage method of this embodiment. It is a figure explaining the usage method of this embodiment following FIG. It is a figure which shows the peeling condition of the coating | cover from an electric wire in the moment in rotation operation in FIG. It is a figure which shows the guide means which can be used for the electric wire coating peeling tool of this invention. It is a perspective view which shows the use condition of embodiment shown in FIG. It is a perspective view which shows the example of 1 structure of the conventional electric wire coating | coated peeling tool. It is the front view and side view of an electric wire coating | peeling peeling tool shown in FIG. It is a perspective view for demonstrating the usage method of the conventional electric wire covering peeling tool. It is a figure for demonstrating the usage method of the conventional electric wire coating peeling tool following FIG. It is a figure which shows the peeling condition of the coating | cover from an electric wire in the moment in rotation operation in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric wire covering peeling tool 10 Main body 11 Guide part 12 Holding part 12a Groove 13 Base part 13a Screw hole 20 Spindle 21 Blade body holder 22 Blade body 25 Tightening nut 27 Eye handle 28 Groove (blade body holder)
30 (no screw) shaft 31 (shaft) screw portion 32, 33 magnet (the poles are opposite to each other)
40, 42 Arm 41, 43 Ring 45 Guide means 46 Outer frame body 461 Fixing piece 47 Presser plate 48 Spring (biasing means)
49 Cap screw (fixture)
W Coated wire S Stripping part

Claims (5)

It is a tool used to attach to a covered electric wire using an indirect hot wire tool, rotate around it and peel off and remove the covering of the covered electric wire at a predetermined width,
A substantially U-shaped main body having a holding portion and a base portion protruding in a direction substantially perpendicular to each of the lengthwise ends of the inner surface of the guide portion on which the first arm is erected on the outer surface;
It is inserted through a screw hole penetrating the base part and can be moved in parallel with the guide part inside the main body, and has a blade holder at the inner end of the main body and an operation end at the outer end. In the region near the operation end, a main shaft in which a screw that can be screwed into a screw hole of the base portion is engraved on the outer periphery thereof;
An electric wire covering peeling tool comprising: an urging means for urging the holding part and the blade body holder in a direction approaching each other.   The wire covering / peeling tool according to claim 1, wherein the biasing means is a permanent magnet or an electromagnet provided in the holding portion and / or the blade holder.   The electric wire coating peeling tool according to claim 1 or 2, wherein a second arm whose axial direction is orthogonal to the axial direction of the arm is erected on the outer surface of the holding portion.   The blade holder is configured to guide the coating that is peeled off with a width substantially equal to the blade body to the operation end side along the front surface of the blade holder and to hold the coating. The electric wire coating peeling tool according to any one of claims 1 to 3, wherein a guide means is provided.   The wire covering peeling tool according to claim 4, wherein the guide means includes a movable portion that is biased toward the front surface of the blade holder and holds the covering.

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