JP2009284722A - Wire covering stripping tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent falling when attached to the electric wire or removed from the electric wire. <P>SOLUTION: A wire covering stripping tool 100 has a support 101, a pressing axis 102, a blade holder 103, an arm 104, and a cover 105. The cover 105 is mounted to be freely opened/closed in a sliding manner at an open region side in opposition to a third support region 101c of the channel-shaped support 101. The cover 105 is forced to be normally closed by means of a coil spring 124. When the wire covering stripping tool 100 is attached to an electric wire W, the electric wire W is brought into contact with an inclined part 132 to press the cover 105 downward. The cover 105 slides toward the lower side to be placed into an open state, and the electric wire W is guided by the inclined part 132 to be inserted into a concave groove 111 at a first support region 101a. After the electric wire W is inserted into the concave groove 111, the cover 105 is automatically placed into a closed state by a biasing force exerted by the coil spring 124. <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.

  2. Description of the Related Art Conventionally, in the repair work of electric wires installed for power transmission / distribution and the like, there is an operation of stripping the coating (insulating coating) in a live line state. For example, Patent Literature 1 and the like describe an electric wire coating peeling tool that can perform this coating peeling operation safely and easily by remote control.

  8 and 9 show a configuration example of a conventional wire sheath peeling tool 200. FIG. The electric wire coating peeling tool 200 includes a support 201, a pressing shaft 202, a blade holder 203, and an arm 204. The support 201 has a U shape, and a first support region 201a and a second support region 201b are set on two opposite sides, and a third support region 201c is set on the remaining one side.

  The first support region 201a is provided with a concave groove 211 for supporting the electric wire on the surface on the second support region 201b side. The concave groove 211 extends in a direction orthogonal to the support 201 and has a semicircular cross section. The second support region 201b is provided with a screw hole 212 substantially at the center.

  The pressing shaft 202 has a threaded portion 213 and an engaging ring (engaging portion) 214 connected to the threaded portion 213 at the outer end. The pressing shaft 202 penetrates the second support region 201b so as to advance and retract by screwing the screw portion 213 into the screw hole 212 of the second support region 201b. The inner end of the pressing shaft 202 is loosely attached to the blade holder 203 so as to be rotatable and movable in the axial direction.

  The blade holder 203 is located between the concave groove 211 of the first support region 201a and the pressing shaft 202. The blade holder 203 moves using the third support region 201c as a guide as the pressing shaft 202 connected to the blade holder 203 advances and retreats. A blade body 215 protruding toward the concave groove 211 is mounted on the blade body holder 203. The blade body 215 has a width corresponding to the length of the concave groove 211.

  The blade holder 203 is provided with a groove 216 that faces the groove 211 of the first support region 201a described above. The concave groove 211 and the concave groove 216 can restrain and hold the electric wire. The blade holder 203 is provided with guards 217 at positions corresponding to both ends of the blade 215. The guard 217 is urged inward by a compression coil spring 218. This guard 217 is for clamping the coating peeled off from the electric wire.

  The arm 204 is a bar-like member formed to protrude from the third support region 201 c of the support body 201. The arm 204 has an engagement ring (engagement portion) 219 at its protruding end. The engagement ring 219 and the engagement ring 214 at the outer end of the pressing shaft 202 described above are in a positional relationship that is open at a substantially right angle.

  In the electric wire sheath peeling tool 200 described above, by rotating the pressing shaft 202 using the engagement ring 214, the pressing shaft 202, and thus the blade holder 203 can be moved in the axial direction. For example, the blade holder 203 can be brought closer to the first support region 201a by rotating the pressing shaft 202 clockwise (clockwise). Conversely, by rotating the pressing shaft 202 counterclockwise (counterclockwise), the blade holder 203 can be moved away from the first support region 201a.

  8 and 9 show a state in which the blade holder 203 is moved away from the first support region 201a. On the other hand, FIG. 10 shows a state in which the blade holder 203 is brought close to the first support region 201a.

  In the state where the electric wire W is inserted into the concave groove 211 of the first support region 201a, the electric wire W is connected to the first support region 201a as shown in FIG. It is in a state of being sandwiched between the concave groove 211 of the support region 201 a and the concave groove 216 of the blade holder 203. At this time, the blade body 215 (not shown in FIG. 11) is in a state of being bitten into the coating s of the electric wire W.

  Therefore, in this state, by using the engagement ring 214 of the pressing shaft 202 and the engagement ring 219 of the arm 204 to rotate the wire covering peeling tool 200 around the electric wire W, as shown in FIG. The covering s of the electric wire W can be peeled off with the width of the blade body 215. In this case, the stripped coating s is sandwiched and held by the guards 217 and 217.

  The case where the operation | work which peels a coating | cover in the state of a live line is performed in the repair work of the electric wire currently erected for power transmission / distribution etc. using the above-mentioned electric wire coating peeling tool 200 is demonstrated. In this case, for example, as shown in FIG. 12, the worker uses the insulating YAT 310 that is an indirect hot wire tool and the bind hammer 320 to connect the wire coating peeling tool 200 to the electric wire (in FIG. 12). Attach the wires (not shown).

  That is, for example, the operator holds the grip portion of the frame 204 with the left-hand insulating jacket 310 and inserts the electric wire into the groove 211 of the first support region 201a. Then, in this state, the front end engaging portion of the right hand bind hammer 320 is engaged with the engagement ring 214 of the pressing shaft 202, and the bind hammer 320 is pulled downward so that the electric wire does not come out of the concave groove 211. However, the pressing shaft 202 is rotated to tighten the blade holder 203 so as to approach the concave groove 211. Thereby, the electric wire is sandwiched between the concave groove 211 of the first support region 201a and the concave groove 216 of the blade holder 203, that is, the electric wire covering peeling tool 200 is attached to the electric wire.

  Next, the operator sequentially engages the front end engaging portion of the bind hammer 320 with the engagement ring 214 of the pressing shaft 202 and the engagement ring 219 of the frame 204, and the electric wire covering peeling tool 200 is connected to the electric wire. Rotate around. Thereby, the coating of the electric wire is peeled off by the electric wire coating peeling tool 200 (see FIG. 11).

Next, the worker holds the gripping portion of the frame 204 with the left-hand insulating jacket 310 in the same manner as when attaching, and in this state, the front-end engaging portion of the right-hand bind hammer 320 is engaged with the engagement ring of the pressing shaft 202. The blade holder 203 is loosened so as to move away from the concave groove 211 by rotating the pressing shaft 202 by engaging with 214. Thereby, the state in which the electric wire is sandwiched between the concave groove 211 of the first support region 201a and the concave groove 216 of the blade holder 203 is released, and the electric wire covering peeling tool 200 is removed from the electric wire.
JP-A-6-261432

  As described above, in the repair work of electric wires installed for power transmission and distribution, etc., when performing the work of stripping the coating in a live line state, the operator uses the insulating Yatco 310 and the bind hammer 320. The electric wire sheath peeling tool 200 is attached to the electric wire, and further the electric wire sheath peeling tool 200 is removed from the electric wire.

  In this case, in the configuration of the electric wire sheath peeling tool 200 described above, when tightening at the time of attachment or when loosening at the time of removal, for example, when the gripping state by the insulating jacket 310 is loosened due to fatigue of the operator's hand, There was a possibility that the electric wire covering peeling tool 200 would fall from the electric wire and collide with a pedestrian or a vehicle.

  FIG. 13 shows a process chart when attaching the wire coating peeling tool 200 to the electric wire W. FIG. In FIG. 13, the illustration of the insulating yoke 310 and the bind hammer 320 is omitted. First, as shown in FIG. 13A, the operator holds the gripping portion of the frame 204 with the insulating jacket 310 and attaches the wire coating peeling tool 200 to the wire W.

  Next, as shown in FIG. 13 (b), the operator presses the distal end engaging portion of the right hand bind hammer 320 with the pressing shaft while the electric wire W is inserted into the concave groove 211 of the first support region 201a. Engage with the engagement ring 214 of 202. Then, the operator rotates the pressing shaft 202 while pulling the bind hammer 320 downward so that the electric wire W does not come off the concave groove 211, and tightens the blade holder 203 so as to approach the concave groove 211. Go.

  Before the tightening, if the gripping state by the insulating jacket 310 is loosened due to fatigue of the operator's hand, the wire covering peeling tool 200 falls from the wire W as shown in FIG.

  Further, in the configuration of the above-described electric wire coating peeling tool 200, since the blade body 215 exists on the open region side of the support body 201, an operator or the like by the blade body 215 is used during storage or during work. In order to prevent injury, the blade holder 203 is placed in a state of being close to the concave groove 211 (tightened state). Therefore, when actually performing the operation of peeling the wire coating using the wire coating peeling tool 200, it is necessary to loosen the blade holder 203 away from the concave groove 211, and the work time is increased accordingly. there were.

  An object of the present invention is to prevent a drop at the time of attachment to an electric wire or detachment from the electric wire, and to shorten the work time for removing the coating from the electric wire.

The concept of this invention is
The first support region and the second support region are set on two opposite sides, the third support region is set on the remaining one side, and the second support region of the first support region. A support body provided with a ditch for supporting an electric wire on the surface of the support area side of
An engaging portion is provided at the outer end, and a threaded portion connected to the engaging portion is screwed into a screw hole provided in the second support town area so as to pass through the second support region so as to freely advance and retract. A pressing shaft,
A blade holder on which a blade body that is located between the concave groove and the pressing shaft, moves with the movement of the pressing shaft, and protrudes toward the concave groove is mounted;
An electric wire covering peeling tool comprising: a cover which is disposed on an open region side of the support opposite to the third support region and is attached to the support so as to be freely opened and closed.

  In the electric wire covering peeling tool of this invention, the cover attached to the support body so that opening and closing is possible is arrange | positioned at the open area | region side of the support body. When performing the operation | work which peels the coating of an electric wire using this electric wire coating peeling tool, a cover is opened and an electric wire is inserted in the ditch | groove of a 1st support area | region. Here, as a cover opening / closing method, a slide method, a rotation method using a hinge mechanism, or the like can be considered.

  Thus, after the electric wire is inserted into the concave groove of the first support region, the cover is manually or automatically closed, so that, for example, the gripping state by the insulating jacket is loosened due to fatigue of the operator's hands. However, since the cover is caught on the electric wire, the electric wire covering peeling tool is prevented from dropping from the electric wire.

  In the electric wire covering peeling tool of the present invention, the cover is disposed on the open region side of the support, and the blade mounted on the blade holder is placed in a state covered with the cover. Injuries to workers by the body are prevented. Therefore, at the time of storage, it is not necessary to keep the blade holder close to the concave groove (tightened state) during work. Therefore, when performing the work of stripping the coating of the wire using this wire coating stripping tool, the loosening operation of moving the blade holder away from the concave groove becomes unnecessary, and the working time is shortened accordingly.

  In the present invention, for example, an urging portion that urges the cover may be provided so that the cover is closed. For example, the cover is slidably arranged in the axial direction of the pressing shaft, the urging portion is constituted by a coil spring, one end of the coil spring is connected to the support, and the other end of the coil spring is connected to the cover. It is supposed to be configured.

  Thus, by providing the urging portion, the cover is automatically closed after the cover is opened and the electric wire is inserted into the concave groove of the first support region. This eliminates the need for the operator to manually close the cover, reducing the labor of the operator and improving workability.

  In the present invention, for example, the cover is pressed by the electric wire to the end portion on the first support region side of the support body, and an inclined portion for guiding the electric wire to the concave groove of the first support region. It may be made to have. In this case, when attaching the electric wire covering peeling tool to the electric wire, the cover is opened by pressing the electric wire against the inclined portion, and the electric wire is guided to the concave groove of the first support region, so that workability is improved.

  Further, in the present invention, for example, the cover is attached to the support so that a predetermined distance is provided between the blade holder and the cover that holds the cover peeled off from the electric wire between the cover and the blade holder. A holding part may be formed. In this case, since the coating peeled off from the electric wire is held between the cover and the blade holder, the coating peeled off from the electric wire is reliably prevented from falling.

  According to this invention, the fall at the time of the attachment to an electric wire or the removal from an electric wire can be prevented. Moreover, according to this invention, the time of the operation | work which peels a coating | coated from an electric wire can be aimed at.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 3 show a configuration example of a wire coating peeling tool 100 as an embodiment. The electric wire coating peeling tool 100 includes a support body 101, a pressing shaft 102, a blade body holder 103, an arm 104, and a cover 105. The support body 101 has a U-shape, and a first support area 101a and a second support area 101b are set on two opposite sides, and a third support area 101c is set on the remaining one side. The material of the support 101 is, for example, an aluminum alloy.

  The first support region 101a is provided with a ditch 111 for supporting an electric wire on the surface on the second support region 101b side. The concave groove 111 extends in a direction orthogonal to the support 101 and has a semicircular cross section. The second support region 101b is provided with a screw hole 112 substantially at the center.

  The pressing shaft 102 has a threaded portion 113 and an engaging ring (engaging portion) 114 connected to the threaded portion 113 at the outer end. The pressing shaft 102 penetrates the second support region 101b so as to advance and retract by screwing the screw portion 113 into the screw hole 112 of the second support region 101b. The inner end of the pressing shaft 102 is loosely attached to the blade holder 103 so as to be rotatable and movable in the axial direction. The material of the threaded portion 113 of the pressing shaft 102 is, for example, mechanical structural steel. The material of the engagement ring 114 of the pressing shaft 102 is, for example, an aluminum alloy.

  The blade holder 103 is located between the concave groove 111 and the pressing shaft 102 of the first support region 101a. The blade holder 103 moves using the third support region 101c as a guide as the pressing shaft 102 connected to the blade holder 103 moves forward and backward. A blade 115 protruding toward the concave groove 111 is mounted on the blade holder 103. The blade body 115 has a width corresponding to the length of the concave groove 111. The material of the blade 115 is, for example, stainless steel.

  The blade holder 103 is provided with a groove 116 facing the groove 111 of the first support region 101a described above. The concave groove 111 and the concave groove 116 can restrain and hold the electric wire. Further, the blade body holder 103 is provided with guards 117 at positions corresponding to both ends of the blade body 115. The guard 117 is urged inward by a compression coil spring 118. This guard 117 is for clamping the coating peeled off from the electric wire.

  The arm 104 is a rod-like member formed to protrude from the third support region 101 c of the support body 101. The arm 104 has an engagement ring (engagement portion) 119 at the protruding end. The engagement ring 119 and the engagement ring 114 at the outer end of the above-described pressing shaft 102 are in a positional relationship that is open at a substantially right angle.

  Further, the cover 105 is disposed on the open area side of the support body 101 facing the third support area 101c. The cover 105 is attached to the support 101 so as to be freely opened and closed. That is, the cover attachment member 121 is fixed to the second support region 101 b of the support body 101 using the screws 122.

  The cover attachment member 121 includes guide grooves 123 and 123 on both sides in the width direction of the blade body 115 described above. The cover 105 is slidably disposed by inserting the lower end side thereof, that is, the left and right ends of the second support region 101b side into the guide grooves 123 and 123 of the cover attachment member 121. The material of the cover 105 and the cover attachment member 121 is, for example, an aluminum alloy.

  The cover 105 is urged by the urging unit so as to be in a closed state. Here, the state in which the cover 105 is closed means a state in which the open region side of the support body 101 facing the third support region 101c is covered with the cover 105 (see FIGS. 1 to 3). In this embodiment, the urging portion is constituted by a coil spring 124. One end of the coil spring 124 is connected to the cover attachment member 121 using the connection portion 121a. Further, the other end of the coil spring 124 is connected to the cover 105 by using a connecting portion 105a.

  Here, by pressing the cover 105 downward, the cover 105 is guided by the guide grooves 123 and 123 of the cover attachment member 121 and slides downward as shown in FIG. In this case, the open region side of the support body 101 facing the third support region 101c is in an open state exposed to the outside.

  Thus, when the cover 105 is in the open state, the coil spring 124 is in an extended state. Therefore, when the force that presses the cover 105 downward is released, the cover 105 slides upward by the spring force of the coil spring 124 and automatically returns to the closed state.

  In addition, a constricted portion 131 that penetrates deeply into the support 101 side is formed on the upper end side of the cover 105, that is, on the first support region 101 a side of the support 101. In this case, when the cover 105 is closed, the deepest portion of the constricted portion 131 is substantially in contact with the first support region 101a of the support body 101 as shown in FIG.

  By forming the constricted portion 131 at the upper end side of the cover 105 as described above, the cover 105 has the inclined portion 132 at the upper end portion thereof. The inclined portion 132 is used to press the cover 105 downward with the electric wire when the electric wire covering peeling tool 100 is attached to the electric wire. By this pressing, the cover 105 slides downward and enters the open state. The electric wire is guided by the inclined portion 132 and guided to the concave groove 111 of the first support region 101 a of the support body 101.

  Further, the cover 105 is slidably disposed on the cover mounting member 121 so that a predetermined distance is provided between the cover 105 and the blade holder 103. Here, the predetermined interval is an interval that can sufficiently hold the coating peeled off from the electric wire between the cover 105 and the blade holder 103. In this case, between the cover 105 and the blade holder 103, a covering holding portion 133 that holds the covering peeled off from the electric wire is formed.

  In the electric wire sheath peeling tool 100 described above, by rotating the pressing shaft 102 using the engagement ring 114, the pressing shaft 102, and thus the blade holder 103 can be moved in the axial direction. For example, by rotating the pressing shaft 102 clockwise (clockwise), the blade holder 103 can be brought closer to the first support region 101a as shown in FIG. Conversely, the blade holder 103 can be moved away from the first support region 101a by rotating the pressing shaft 102 counterclockwise (counterclockwise).

  1 and 4 show a state in which the blade holder 103 is moved away from the first support region 101a. 2 and 5 show a state in which the blade holder 103 is brought close to the first support region 101a.

  By bringing the blade holder 103 close to the first support region 101a in a state where the wire W is inserted into the concave groove 111 of the first support region 101a, as shown in FIG. It is in a state of being sandwiched between the concave groove 111 of the support area 101 a and the concave groove 116 of the blade holder 103. At this time, the blade body 115 (not shown in FIG. 6) is in a state of being bitten into the coating s of the electric wire W.

  Therefore, in this state, by using the engagement ring 114 of the pressing shaft 102 and the engagement ring 119 of the arm 104 to rotate the wire covering peeling tool 100 around the wire W, as shown in FIG. The covering s of the electric wire W can be peeled off with the width of the blade body 115. In this case, the stripped coating s is held in a coating holding part 133 formed between the blade holder 103 and the cover 105.

  A case will be described in which the above-described wire coating peeling tool 100 is used to perform a work of stripping the coating in a live state in the repair work of an electric wire installed for power transmission and distribution. In this case, the operator uses the insulating YATCO 310, which is an indirect hot wire tool, and the bind hammer 320, similarly to the case where the conventional wire sheath peeling tool 200 is attached to the wire, and the wire sheath peeling tool 100. Is attached to the electric wire (see FIG. 12).

  That is, for example, the operator holds the grip portion of the frame 104 with the left-hand insulating jacket 310, and inserts the electric wire into the concave groove 111 of the first support region 101a. FIG. 7 shows the process in this case. In FIG. 7, the illustration of the insulating yoke 310 and the bind hammer 320 is omitted.

  First, as shown in FIG. 7A, the operator holds the grip portion of the frame 104 with the insulating jacket 310 and attaches the wire coating peeling tool 100 to the wire W. Next, as shown in FIG. 7B, the operator brings the electric wire W into contact with the inclined portion 132 at the upper end of the cover 105, and the cover 105 is pressed downward by the electric wire W. . In this case, since the cover 105 slides downward to be in the open state, the electric wire W is guided by the inclined portion 132 and guided to the concave groove 111 of the first support region 101a of the support body 101.

  Thus, in the state where the electric wire W is guided to the concave groove 111, the downward pressing of the cover 105 by the electric wire W is released, so that the spring force of the coil spring 124 is applied as shown in FIG. The cover 105 slides upward and automatically returns to the closed state.

  As described above, the operator engages the engagement portion 114 of the pressing shaft 102 with the distal end engaging portion of the right hand binding hammer 320 with the electric wire inserted into the concave groove 111. Then, the operator rotates the pressing shaft 102 while pulling the bind hammer 320 downward so that the electric wire does not come out of the groove 111, and tightens the blade holder 103 so as to approach the groove 111. . Thereby, the electric wire is sandwiched between the concave groove 111 of the first support region 101a and the concave groove 116 of the blade holder 103, that is, the electric wire covering peeling tool 100 is attached to the electric wire.

  Next, the operator sequentially engages the front end engaging portion of the bind hammer 320 with the engagement ring 114 of the pressing shaft 102 and the engagement ring 119 of the frame 104, and the wire covering peeling tool 100 is connected to the electric wire. Rotate around. Thereby, the coating of the electric wire is peeled off by the electric wire coating peeling tool 100 (see FIG. 6).

  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 this state, the front-end engaging portion of the right-hand bind hammer 320 is engaged with the engagement ring of the pressing shaft 102. 114 is engaged to rotate the pressing shaft 102 and the blade holder 103 is loosened away from the concave groove 111. Thereby, the state where the electric wire is sandwiched between the concave groove 111 of the first support region 101 a and the concave groove 116 of the blade holder 103 is released.

  In this state, the operator engages the tip engaging portion of the right hand binding hitter 320 with the inclined portion 132 of the cover 105 and pulls it downward to open the cover 105, and the wire covering peeling tool 100 is moved to the electric wire. Remove from.

  As described above, in the wire coating peeling tool 100 shown in FIGS. 1 to 3, the cover 105 is attached to the open region side of the support 101 so as to be freely opened and closed. It is always energized to be in a closed state. Therefore, in order to attach this wire covering peeling tool 100 to an electric wire, in the state where the electric wire is inserted into the concave groove 111 of the first support region 101a of the support 101, the cover 105 opens the open region side of the support 101. It is in a closed state (see FIG. 7C).

  Therefore, after the electric wire is inserted into the concave groove 111 of the first support region 101a and before tightening with the bind hammer, for example, the gripping state by the insulating jacket is loosened due to fatigue of the operator's hands. In addition, since the cover 105 is caught on the electric wire, the electric wire sheath peeling tool 100 is prevented from dropping from the electric wire. Such a function of preventing the fall of the electric wire covering peeling tool 100 is similarly exhibited even after the tightening is loosened in order to remove the electric wire covering peeling tool 100.

  1 to 3, after the electric wire is inserted into the concave groove 111 of the first support region 101 a of the support 101 by the coil spring 124 that constitutes the urging portion. The cover 105 is automatically closed. Therefore, the operator does not need to manually close the cover 105, and the labor of the operator is reduced and workability is improved.

  Moreover, in the electric wire sheath peeling tool 100 shown in FIGS. 1 to 3, for example, the cover 105 has an inclined portion 132 at its upper end. Therefore, when attaching the wire sheath peeling tool 100 to the electric wire, the cover 105 is opened only by pressing the electric wire against the inclined portion 132, and the electric wire can be guided to the concave groove 111 of the first support region 101a. Workability is improved.

  Moreover, in the electric wire coating peeling tool 100 shown in FIGS. 1 to 3, a coating holding portion 133 that holds the coating peeled off from the electric wire is formed between the cover 105 and the blade holder 103. Therefore, since the coating peeled off from the electric wire is held by the coating holding portion 133, it is possible to reliably prevent the coating from falling.

  1 to 3, the cover 105 is disposed on the open region side of the support 101, and the blade 115 mounted on the blade holder 103 is the cover 105. The blade 115 is placed in a covered state to prevent injury of an operator or the like by the blade body 115. Therefore, at the time of storage, it is not necessary to keep the blade holder 103 close to the concave groove 111 (tightened state) during work. Therefore, when performing the work of stripping the wire coating using the wire sheath stripping tool 100, the loosening work of moving the blade holder 103 away from the concave groove 111 becomes unnecessary, and the working time can be shortened accordingly.

  In the above-described embodiment, the cover 105 has a sliding type opening / closing method, but is not limited thereto. For example, the cover opening / closing method may be a rotation method using a hinge mechanism or the like. In this case, although not shown, the lower end side of the cover 105 is fixed to the support body 101 by a hinge mechanism, and the cover 105 is always closed by an urging portion constituted by a coil spring or the like. Be energized by.

  Further, in the above-described embodiment, the cover 105 is always urged by the urging portion constituted by the coil spring 124 so as to be in the closed state, and the cover 105 is opened by being pressed downward. When the pressure is released, it automatically returns to the original closed state. However, a configuration without such an urging unit is also conceivable. In that case, the cover 105 that has been opened is manually closed.

  The present invention can prevent falling when attached to an electric wire or when it is detached from the electric wire, and can shorten the time for removing the coating from the electric wire, and is installed for power transmission and distribution, etc. It can be applied to a wire coating peeling tool or the like for performing a work of peeling a coating (insulating coating) in a live line state in a repair work of an electric wire.

It is a perspective view which shows the structural example of the tool for electric wire sheath peeling as embodiment of this invention. It is a front view which shows the structural example of the tool for electric wire sheath peeling as embodiment of this invention. It is a bottom view which shows the example of a structure of the tool for electric wire sheath peeling as embodiment of this invention. It is a perspective view which shows the state which opened the cover in the tool for electric wire covering peeling. It is a perspective view which shows the state which brought the blade holder close to the 1st support area | region in the tool for electric wire covering peeling. It is a perspective view for demonstrating the operation | movement which pinches an electric wire by the ditch | groove of a 1st support area | region and the ditch | groove of a blade body holder, and peels off the coating | cover of an electric wire in the tool for electric wire sheath peeling. It is a figure for demonstrating the process in the case of attaching the electric wire covering peeling tool to an electric wire. It is a perspective view which shows the structural example of the conventional tool for wire sheath peeling. It is a front view which shows the structural example of the conventional tool for wire sheath peeling. It is a front view which shows the state which brought the blade body holder close to the 1st support area | region in the conventional tool for wire coating peeling. It is a perspective view for demonstrating the operation | movement which pinches an electric wire by the ditch | groove of a 1st support area | region, and the ditch | groove of a blade body holder, and peels off the coating | cover of an electric wire in the conventional tool for wire sheath peeling. It is a figure for demonstrating the operation | movement which attaches the electric wire coating | peeling peeling tool to an electric wire using the insulating Yatco which is an indirect hot wire tool, and a bind hammer. It is a figure for demonstrating the process in the case of attaching the conventional tool for wire sheath peeling to an electric wire.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 100 ... Electric wire covering peeling tool, 101 ... Support body, 101a ... 1st support area | region, 101b ... 2nd support area | region, 101c ... 3rd support area | region, 102 ...・ Pressing shaft, 103 ... Blade holder, 104 ... Arm, 105 ... Cover, 105a ... Connection, 111 ... Ditch, 112 ... Screw hole, 113 ... Screw 114, engagement ring, 115 ... blade, 116 ... concave groove, 117 ... guard, 118 ... compression coil spring, 119 ... engagement ring, 121 ... Cover attaching member, 121a ... connecting part, 122 ... screw, 123 ... guide groove, 124 ... coil spring, 131 ... constricted part, 132 ... inclined part

Claims (5)

The first support region and the second support region are set on two opposite sides, the third support region is set on the remaining one side, and the second support region of the first support region. A support body provided with a ditch for supporting an electric wire on the surface of the support area side of
An engaging portion is provided at the outer end, and a threaded portion connected to the engaging portion is screwed into a screw hole provided in the second supporting region, thereby penetrating through the second supporting region. A pressing shaft;
A blade holder on which a blade body that is located between the concave groove and the pressing shaft, moves with the movement of the pressing shaft, and protrudes toward the concave groove is mounted;
A wire covering peeling tool comprising: a cover that is disposed on an open region side of the support opposite to the third support region and is attached to the support so as to be freely opened and closed. The wire covering peeling tool according to claim 1, further comprising an urging portion that urges the cover so that the cover is in a closed state. The cover is arranged to be slidable in the axial direction of the pressing shaft,
The wire covering peeling tool according to claim 2, wherein the urging portion is configured by a coil spring, one end of the coil spring is connected to the support, and the other end of the coil spring is connected to the cover. The cover has an inclined portion that is pressed by an electric wire to an end portion of the support body on the first support region side and guides the electric wire to a concave groove of the first support region. Alternatively, the electric wire coating peeling tool according to claim 3. The cover is attached to the support so as to have a predetermined distance from the blade holder,
The wire covering peeling tool according to claim 1, wherein a covering holding portion is formed between the cover and the blade holder for holding the covering peeled off from the electric wire.

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