JP4903538B2 - Coating stripping apparatus and coating stripping method using the same - Google Patents

Description

  The present invention relates to a coating stripping device that strips a coating material of a coated electric wire used for a high-voltage overhead wire or the like, and a coating stripping method using the coating stripping device.

  In overhead wire work, for example, work for connecting an end portion or an intermediate portion of a covered electric wire covered with an insulating material to another electric wire, it is necessary to peel off the insulating coating at the connection target portion of the covered electric wire to expose the core wire. Such an operation of stripping the insulation coating of the covered electric wire is conventionally performed manually using a knife or the like, or a coating stripper 60 as shown in FIG. It is done using.

In the conventional stripping device 60, in some cases, after removing the fin portion of the portion to be stripped with a knife or the like in advance, the coated wire A is introduced into the wire holding portion 61 and the screw shaft 64 is rotated by the operation ring 65. Then, the cutting edge 63 is inserted into the boundary portion between the insulation coating B and the core C of the covered electric wire A in the electric wire holding portion 61 to position and fix the blade body 62, and further, the extension rod portion 66 is rotated (remotely). In operation, the operating portion 67 is used), and the coating stripper 60 is rotated in one direction around the central axis of the covered electric wire A so that the insulation covering for the length corresponding to the blade width of the blade edge 63 is obtained. B was peeled off.
JP-A-10-216512

  However, the stripping work of the intermediate part of the insulated wire that has been wired is a work that is necessary in the construction for the purpose of connecting the wires, separating the electric circuit, connecting the devices to the wires, etc. Avoid, in principle, in a live state.

  In order to perform the stripping operation for the live-covered coated wire using the above-described coated stripper 60, it is necessary to approach the coated wire installed in the air. When working close to an electric wire, work at a high place is dangerous and work efficiency is poor. In addition, when working by remotely operating the coat stripper 60 from the ground or on the work vehicle, the operation of rotating the overhanging rod portion 66 is complicated and difficult, and therefore the working efficiency is also poor.

  The present invention has been made in view of the above-mentioned problems, and it is desired to provide an insulating coating such as a covered electric wire installed in the air safely and efficiently by remote control from the ground or on a work vehicle. An object of the present invention is to provide a coating stripping device that can be stripped by length and a coating stripping method using the coating stripping device.

The coating stripping apparatus according to claim 1 includes a skinning tool main body having an electric wire holding part for holding a covered electric wire, and a skinning blade that is guided and supported by the skinning tool main body and moves forward and backward with respect to the electric wire holding part. The space where the stripping blade is moved forward and backward, the stripping blade is bitten into the insulation of the coated wire at the forward position, and the coated wire is introduced from the side between the wire holding part and the stripping blade at the retracted position. form and a skinning blade drive means have a regulating capable stopper the skin stripping blades in a predetermined forward movement position, with comprises a skinning device with a partially cut away of the outer periphery, the central An electric wire accommodating space for accommodating the covered electric wire in a removable manner is formed in the part, and a turntable in which the electric wire insertion / extraction opening is formed in the notched portion, a case for rotatably holding the turntable, and the case are supported Attached to the tip of the remote control stick, and And a rotation driving means for transmitting rotation of the rotary shaft of the remote control rod to rotation of the rotating disk, and a covered electric wire held by the skinning tool main body at the rotation center of the rotating disk The mounting base provided on the peeler is detachably attached to the peeler holder provided on the turntable so that the center axis of the cover is located, and the peeler body is covered by the rotating operation of the remote control rod. The insulating coating is stripped off with the width of the skinning blade by rotating it around the central axis.

  According to the coating stripping apparatus of the first aspect, the rotation driving tool rotates the rotating disk via the rotation transmitting means by the rotation operation of the remote control rod, and rotates the peeling tool attached to the rotating disk. The covered electric wire held by the electric wire holding part of the stripping tool is accommodated in the electric wire accommodation space of the turntable along the rotation axis, and the covered electric wire is accommodated and held in the electric wire holding part and the electric wire accommodation space. When the turntable is rotated in this state, the stripping tool rotates around the central axis of the covered electric wire, and the insulating coating of the covered electric wire is peeled off with the blade width of the peeling blade.

  Thus, according to the coating stripping device of the present invention, the coating stripping device connected to the remote control rod is brought close to the coated wire installed in the air from the ground or on the work vehicle, and the coated wire is connected to the wire holding unit. The insulation length of the sheathed wire is set to the desired length of the stripping blade by rotating the stripping tool by remote-rotating operation of the remote control rod while being housed in and held by the stripping tool body It can be easily peeled off.

  The coating stripping device according to claim 2 of the present invention is the coating stripping device according to claim 1, wherein the opening / closing gear piece is swingably attached to a position on the rotating disk side close to the wire insertion / extraction port, The oscillating shaft of the opening / closing gear piece is provided with urging means for urging the opening / closing gear piece in the direction of the rotation axis of the rotating disk. When the wire insertion / removal port is closed, the urging force of the urging means opens and closes. The gear piece is configured to engage with the rotating disk and rotate integrally.

  According to the coating stripping device of the second aspect, the opening / closing gear piece that engages with the electric wire insertion / extraction port of the rotating disk and the urging force toward the rotational axis direction of the rotating disk (the direction of closing the electric wire insertion / extraction port). In a state where the covered electric wire is accommodated in the electric wire housing space (the electric wire insertion / extraction port is closed) while adopting a simple structure having an urging means for urging the open / close gear piece, the electric wire insertion / extraction port is the opening / closing gear. The state of being securely closed by the piece is maintained, and the wire insertion / extraction opening is not opened during the stripping operation, and the stripping operation can be performed stably.

A coating stripping method according to claim 3 of the present invention is a coating stripping method for stripping an insulation coating of a coated wire using the coating stripping apparatus according to claim 1 or claim 2. With the skin stripping device connected to and supported by the remote control rod, approach the covered wire in the air, store the covered wire in the wire holding part and the wire housing space, and then peel off using the open / close operation rod The tool body is remotely operated and held in the wire holding part, and the wire insertion / removal port is closed to accommodate the covered wire in the wire receiving space, and the skinning blade is advanced to the upper limit of the forward / backward movement. Engage in the insulation coating of the electric wire, and then rotate the rotating disk of the rotary drive by rotating the remote control rod, and rotate the peeling tool attached to the rotating disk around the central axis of the covered electric cable The skinning blade is It is characterized in that the stripping edge coating.

  According to the covering stripping method according to the third aspect, the operation performed by the operator includes (1) an operation of introducing and storing the covered electric wire into the electric wire holding portion and the electric wire receiving space using the remote control rod, and (2) opening and closing. Holding the covered electric wire in the electric wire holding part using the operation rod, and (3) rotating the remote operation rod to rotate the skinning tool around the central axis of the covered electric wire. It is only an operation to rotate around the upper shaft center, and with such a simple operation, the insulated wire is stripped that is set by the blade width of the stripping blade in the state of a live wire in the covered electric wire in the air The work efficiency is high because it can be peeled off by the length.

  Thus, according to the coating stripping method of the present invention, it is possible to easily strip off the insulation coating such as a coated electric wire installed in the air at a desired length by remote control from the ground or a work vehicle, Moreover, the work is safe and the work efficiency is high.

  According to the coating stripping apparatus of the present invention and the coating stripping method using the coating stripping apparatus, the insulation coating of the coated wire installed in the air is safe and work efficient by remote control from the ground or on the work vehicle. Can be stripped off at a desired length.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS The best mode for carrying out the coating stripping apparatus of the present invention will be described in detail below with reference to the drawings. It should be understood that the embodiments disclosed below are illustrative in all respects and are not restrictive. The technical scope of the present invention is shown not by the content disclosed in the embodiment but by the description of the scope of claims, and further includes all modifications within the meaning and scope equivalent to the scope of claims. Should be understood.

[Embodiment 1]
First, the structure of the coating stripping apparatus according to the embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view for explaining the outline of the coating stripping apparatus according to Embodiment 1 of the present invention, and FIG. 2 illustrates the structure of the coating stripping apparatus according to Embodiment 1 of the present invention. It is a front view for doing. 3A is a side view, FIG. 4B is a front view, and FIG. 4 is a front view for explaining the structure of the peeling tool of the coating stripping apparatus according to Embodiment 1 of the present invention. FIG. 3 is a perspective view for explaining a structure for mounting the peeler of the coating stripping apparatus according to Embodiment 1 of the present invention to a rotary drive tool. Furthermore, FIG. 5 is a side view for explaining the structure of the rotary driving tool of the coating stripping apparatus according to Embodiment 1 of the present invention (showing a state where the wire insertion / extraction opening is open), and FIG. It is a side view for demonstrating the structure of a rotation drive tool similarly (it shows a state with an electric wire insertion / extraction opening closed).

  The coating stripping device 1 of the present invention is configured by mounting the stripping tool 10 on a rotary driving tool 20 (specifically, a stripping tool holding unit 40 described later), and is connected to the rotary driving tool 20 by remote control. By operating from the bar 2, the stripping tool 10 is rotated around the central axis of the coated electric wire A, and the insulation coating B in the middle of the coated electric wire A laid in the air by the skinning blade 13 of the stripping tool 10 is peeled off. The stripping blade 13 is stripped off with a length corresponding to the blade width.

  The skin peeling tool 10 is configured to be detachably attached to the rotary drive tool 20, and the skin peeling tool body 11 and a movable member slidably attached to the skin peeling tool body 11. 12, a peeling blade 13 attached to the movable member 12, an advancing / retracting shaft 14 that is connected to the movable member 12, and moves the movable member 12 (and the peeling blade 13) forward / backward with respect to the peeling tool body 11 and the operation. A ring 15 (peeling blade driving means) and a mounting base 16 for mounting the skinning tool 10 to the rotary driving tool 20 are provided.

  The skin peeling tool main body 11 has a substantially U-shaped cross section, and has a main body portion 11a having a guide surface 11d on the left and right for sliding the movable member 12 in the vertical direction, and extends forward from the upper end portion of the main body portion 11a. The upper side portion 11b in which the wire holding portion 11e is formed between the movable member 12 and the lower side portion 11c extending forward from the lower end portion of the main body portion 11a and having a screw hole 11f at the center thereof. Yes.

  The movable member 12 is regulated by the guide surface 11d of the skin peeling tool body 11 and is slidably attached in the vertical direction of FIG. Further, a male screw is formed on the outer peripheral surface at the lower end portion of the movable member 12, and is screwed into the screw hole 11f of the skin peeling tool main body 11 (lower side portion 11c) so as to advance and retract with an axial center along the vertical direction. A shaft 14 (screw shaft) is attached, and an operation ring 15 having an annular portion 15 a at the lower end is screwed into the lower end portion of the advance / retreat shaft 14. Further, a stopper 15b is fixed between the threaded portion of the advance / retreat shaft 14 with the lower side portion 11c and the operation ring 15, and the movable member 12 is brought into contact with the lower surface of the lower side portion 11c by the stopper 15b coming into contact with the lower surface portion 11c. It regulates further upward movement.

  Further, the skinning blade 13 is fixed to the front surface of the movable member 12 (to the right in FIG. 3A) in a state where the blade edge 13a is parallel to the covered electric wire A held by the electric wire holding portion 11e. ing. When the movable member 12 is positioned at the upper limit of the forward / backward movement range (preventing the upward movement by the stopper 15b), the core wire of the covered electric wire A on which the cutting edge 13a of the peeling blade 13 is the target of the stripping operation It is set to advance from the tangential direction toward the boundary between C and the insulation coating B (bite into the insulation coating B).

  The covered member A is approached with the movable member 12 retracted downward (the gap between the upper side portion 11a of the peeler body 11 and the movable member 12 (peeling blade 13) is expanded). The covered electric wire A can be introduced and accommodated in the electric wire holding portion 11e surrounded by the upper side portion 11a and the movable member 12 behind the peeling blade 13 (leftward in FIG. 3A). Then, by using an opening / closing operation rod having a hook at the tip, the operation ring 15 (annular portion 15a) is moved forward and backward by hooking the hook on the annular portion 15a of the operation ring 15 and rotating the opening / closing operation rod. 14, and the movable member 12 is advanced in the upward direction, thereby holding the covered electric wire A introduced into the electric wire holding portion 11 e and changing the blade edge 13 a from the tangential direction to the insulating coating B. Can be bitten. Further, after stripping the insulation coating B of the covered electric wire A, the operation ring 15 is reversely rotated by an operation from the opening / closing operation rod, and the movable member 12 is retracted downward to be held by the electric wire holding portion 11e. The covered electric wire A can be detached from the electric wire holding portion 11e. Here, holding the covered electric wire A on the electric wire holding portion 11e means that the covered electric wire A is accommodated in a space surrounded by the upper side portion 11a and the movable member 12, and the peeling coating is rotated to peel off the insulation coating. Also in the process of taking, it refers to a state where the wire is held by the wire holding part 11e so that it does not rotate with the rotation of the skinning blade and is maintained in the state held in the wire holding part 11e.

  The mounting base 16 is provided below the skin peeling tool main body 11, and is used for detachably mounting the skin peeling tool 10 to a skin peeling tool holding portion 40 described later. An engagement hole 16a is provided on the right side in b), and a mounting hole 16b is provided on the front surface thereof (the front side of the hand in FIG. 3B). The engagement hole 16 a and the attachment hole 16 b are attached and fixed to the peeler holding part 40 by fitting engagement pins 41 c and attachment pins 42 of the peeler holding part 40 described later, respectively.

  The stripping tool 10 includes the type of the covered electric wire A (the wire diameter of the core wire C, the material and thickness of the insulation coating B, etc.), the stripping length, and the stripping target part (intermediate) A plurality of types of skin peeling tools 10 are prepared so that they can be used properly according to the part or end part). Further, by replacing the skinning blade 13 fixed to the movable member 12, it is possible to cope with the coating stripping work having different stripping lengths. Each stripping tool 10 has a cutting edge 13a of the stripping blade 13 at the boundary between the core C of the covered electric wire A and the insulation coating B to be stripped when the movable member 12 is positioned at the upper limit of the forward / backward movement range. And forward (from the insulation coating B) from the tangential direction.

  The rotary driving tool 20 includes a rotary disk 21, a case 27 that rotatably holds the rotary disk 21, and a rotation transmission unit (rotation transmission means) that transmits the rotation of the rotary shaft of the remote control rod 2 to the rotation of the rotary disk 21. 30, and a peeler holding unit 40 to which the peeler 10 is detachably attached is attached to the turntable 21.

  The turntable 21 is provided with teeth that engage with a pinion 37 (described later) on the outer peripheral surface, and an annular ring having a circular cross section formed in the center as an electric wire receiving space 21a that can accommodate a covered electric wire. A pair of turntable holding portions 26 having the same opening shape are attached to both side surfaces of the turntable 21 with the same opening shape. The diameter of the electric wire receiving space 21a and the width of the opening are set slightly larger than the diameter of the covered electric wire A (the same applies to the rotating disk holding unit 26), and the electric wire receiving space 21a is a space for receiving the covered electric wire A. The opening functions as a wire insertion / removal opening 21b that allows the covered electric wire A to be inserted into the electric wire receiving space 21a or the covered electric wire A to be detached from the electric wire receiving space 21a. The case 27 that holds the turntable 21 rotatably is also provided with an opening having the same shape as the wire insertion / removal opening 21b, and when the wire insertion / removal opening 21b is located in the opening of the case 27, The covered electric wire A can be inserted / removed through the electric wire insertion / removal port 21b.

  The rotary disk 21 near the wire insertion / removal opening 21b is provided with a swing shaft 23, and an open / close gear piece 22 is attached so as to swing around the swing shaft 23. The open / close gear piece 22 has an outer peripheral surface formed in an arc shape having the same diameter as the outer diameter of the rotating disc 21, and teeth having the same shape as the rotating disc 21 are provided on the outer peripheral surface. A part of the turntable 21 is notched in the attachment portion of the opening / closing gear piece 22 in the turntable 21 so that the opening / closing gear piece 22 can be attached and swinged. A part of the turntable 21 is cut out at a portion where the tip of the piece 22 is received and engaged to receive the opening / closing gear piece 22. In this way, in a state where the opening / closing gear piece 22 is engaged with the rotating disk 21 (the electric wire insertion / removal port 21b is closed), the rotating disk 21 and the opening / closing gear piece 22 are rotationally driven as an integral gear. Has been.

  Ball plunger mechanisms 24a and 24b (holding means) are respectively provided on the side surface (the cutout portion) of the turntable 21 adjacent to the swing shaft 23 side and the wire insertion / removal port 21b on the opposite side of the swing shaft 23. ) Is provided. When the opening / closing gear piece 22 is pulled out from the opening of the case 27 to open the wire insertion / removal port 21b (as shown in FIG. 3A), the ball plunger mechanism 24a is activated and held in the open state. The And since this electric wire insertion / extraction opening 21b is an open state and the electric wire insertion / extraction opening 21b corresponds with opening of case 27, the covered electric wire A can be inserted in the electric wire accommodation space 21a, and can be accommodated and held. Further, when an external force is applied to the opening / closing gear piece 22 by another operating rod or the like, the ball plunger mechanism 24a is released, and when the opening / closing gear piece 22 is further pressed in the direction of the electric wire insertion / removal port 21b, the opening / closing gear piece 22 The ball plunger mechanism 24b is actuated by engaging with the notched portion 21, and the wire insertion / removal port 21b can be held in the closed state.

  Furthermore, when the stripping device 1 is pulled back in the direction away from the coated electric wire A by the remote control rod 2 after the stripping operation of the insulation coating B by the stripping tool 10 is finished, the ball plunger mechanism 24b is released, The open / close gear piece 22 is swung to be detached from the turntable 21, and the wire insertion / removal port 21b can be opened, whereby the covered wire A can be detached from the wire receiving space 21a.

  An annular flange 26a is set on the outer side of the peripheral surface of the turntable holding portion 26 (opposite the surface attached to the turntable 21), and the turntable holding portion 26 is attached to the side surface of the turntable 21. Thus, an annular recess is formed between the side surface of the turntable 21 and the flange portion 26a of the turntable holding portion 26. The turntable 21 is attached to the side surface of the turntable 21 so that the edge surrounding the turntable fitting hole 27a of the case 27 is fitted in the annular recess, whereby the turntable 21 is attached to the case 27. It is fitted so as to be rotatable. For this reason, the diameter of the rotating disk fitting hole 27a is slightly larger than the outer diameter of the rotating disk holding part 26 (the part where the flange part 26a is not formed), and the flange part 26a of the rotating disk holding part 26 is formed. The width of the non-existing portion is set slightly wider than the thickness of the case 27.

  The case 27 covers the turntable 21 and the pinion 37 and is cut out corresponding to the electric wire receiving space 21a and the wire insertion / removal opening 21b of the turntable 21, and the turntable is inserted into the opening (the turntable fitting hole 27a). The rotating disk 27 is rotatably held via the holding unit 26. In addition, an electric wire auxiliary support portion 28 is attached to the outer side surface of the case 27 (on the side opposite to the side to which the below-described peeler holding portion 40 is attached). The electric wire auxiliary support portion 28 is provided with a semi-annular portion 28a having an inner diameter set slightly larger than the outer diameter of the covered electric wire A at the tip, and the covered electric wire A is brought into contact with the semi-annular portion 28a. The covered electric wire A to be introduced into the electric wire housing space 21a is guided, or the covered electric wire A accommodated in the electric wire housing space 21a is supplementarily supported. This prevents the wobbling of the covered electric wire A.

  On one outer surface of the rotating disk holding unit 26, a peeling tool holding unit 40 including a mounting holding plate 41 and a mounting pin 42 is attached. The mounting holding plate 41 is fixed to the outer surface of the rotating disk holding part 26 with a screw above the mounting part 41a extending in the radial direction of the rotating disk 21 (on the rotation axis side). It is bent at a right angle (in a direction parallel to the rotation axis) at the lower side (the side away from the rotation axis), and the peeler mounting portion 41b is U-shaped in cross section (a pair of side plates are raised at the front and back). A) It has a shape. And the engaging pin 41c is provided in the lower part of the attaching part 41a.

  Further, the mounting pin 42 engages with the mounting hole 16a of the mounting base 16 in a state in which the tip is biased to the side plate of the skin peeling tool mounting portion 41b in a direction protruding toward the inner side of the side plate (the mounting base 16 side). It is attached where possible. The mounting pin 42 is operated so as to retract from the side plate against the urging force, the mounting base 16 of the skin peeling tool 10 is received in the skin peeling tool mounting portion 41b, and the engagement pin 41c is received on the side of the mounting base 16 In the state of being engaged with the engagement hole 16a provided in the direction, the attachment pin 42 is further operated to move forward from the side plate by the urging force to engage with the attachment hole 16b. The mounting base 16) can be mounted and fixed on the skinning tool mounting portion 41b.

  Note that the vertical dimension d (see FIG. 5) from the rotation center of the turntable 21 to the upper surface of the peeling tool mounting part 41b in the peeling tool holding part 40 is accommodated in the electric wire holding part 11e in the peeling tool 10. Is set to be the same as the vertical dimension from the center axis of the covered electric wire A (that is, the position of the blade edge 13a at the upper limit of the forward and backward movement of the movable member 12) to the bottom surface of the mounting base 16, and further, the peeler holding part The dimension s (see FIG. 5) in the direction along the upper surface of the skin peeling tool mounting portion 41b from the rotation center of the turntable 21 to the center line of the skin peeling tool mounting portion 41b in 40 is an electric wire holding portion in the skin peeling tool 10. 11e is set to the same dimension as the direction along the bottom surface of the mounting base 16 from the central axis of the covered electric wire A accommodated in 11e to the center line of the mounting base 16.

  Therefore, the rotation center of the turntable 21 is located on the central axis of the covered electric wire A accommodated in the electric wire holding part 11e. When the peeler holding part 40 is attached to the turntable holding part 26 with such a shape and size, the covered electric wire A held in the electric wire holding part 11e and the electric wire receiving space 21a is rotated by the peeler 10. The blade edge 13a can rotate and move on the boundary portion between the core wire C of the covered electric wire A and the insulating coating B without being fluctuated by the operation, and the insulating coating B can be peeled off smoothly.

  The rotation transmitting unit 30 includes a support base 31 having an L-shape in cross-section, a support cylinder 32 attached below the base 31a of the support base 31, a first bevel gear 33 and a second meshing mesh with each other at right angles. A bevel gear 34, a connecting rotary shaft 35 connected to the axis of the first bevel gear 34, and a cover 36 having a triangular shape in a side view covering these components are provided, and the second bevel gear 34 is provided inside the case 27. And a pinion 37 provided coaxially.

  The support cylinder 32 is for supporting the coating stripping device 1 by the remote control rod 2 by receiving the tip of the remote control rod 2 inside the cylindrical body.

  The first bevel gear 33 is rotatably supported by a hole formed in the center of the bottom side 31 a of the support base 31, and the gear part 33 a is arranged above the bottom side 31 a of the support base 31. The second bevel gear 34 is rotatably supported by a hole formed in the center of the side portion 31b of the support base 31, and the gear portion 34a is disposed on the side of the side portion 31b of the support base 31 so as to be first. The bevel gear 33 meshes with the gear portion 33a, and the shaft portion 34b opposite to the gear portion 34a protrudes from the side portion 31b of the support base 31 and passes through the case 27, and a pinion 37 is inserted into the shaft portion 34b. It is attached. The connecting rotary shaft 35 is disposed on the central axis of the support cylinder 32, the upper end is joined to the shaft center portion 33 b of the first bevel gear 33, and the lower end is connected to the rotary shaft of the remote control rod 2. In order to match, a head portion 35a having a hexagonal shape in cross section is provided.

  The remote control rod 2 is a well-known remote control rod that is provided with a rotation shaft inside a rod-shaped cylinder, and the rotation is transmitted to the rotation shaft via a bevel gear by rotating the handle at hand. Used. By inserting the distal end of the remote control rod 2 into the support cylinder 32, the distal end portion of the rotary shaft of the remote control rod 2 is connected to the connecting rotary shaft 35 (head 35 a), and the coating stripping device 1 is connected to the remote control rod 2. It can be supported at the tip of. In this state, by rotating the handle of the remote control rod 2 at hand, the connecting rotary shaft 35 is rotated, and the first bevel gear 33 joined to the connecting rotary shaft 35 and the second bevel gear 34 meshing with the first bevel gear 33 And the pinion 37 attached coaxially with the second bevel gear 34 is rotated, and the turntable 21 meshed with the pinion 37 and the peeling tool 10 attached thereto via the turntable holding part 26 are rotated. Can do.

  According to the coating stripping device 1 configured as described above, the remote control rod 2 is connected to the coating stripping device 1 (rotary driving tool 20), and the coating stripping device 1 is supported by the remote control rod 2. In this state, the turntable 21 and the stripping tool 10 attached thereto are rotated by remote control from the ground or on the work vehicle, and the insulation coating B of the covered electric wire A wired in the air is safe and efficient. Can be easily peeled off at a desired length.

  Also, a simple structure having an opening / closing gear piece 22 that engages with the electric wire insertion / removal opening 21b of the rotating disk 21 and ball plunger mechanisms 24a, 24b that hold the opening / closing gear piece 22 in the open state and the closed state of the electric wire insertion / removal opening 21b. In the state where the covered electric wire A is accommodated in the electric wire accommodating space 21a (the state where the electric wire insertion / removal port 21b is closed), the state where the electric wire insertion / removal port 21b is securely closed by the ball plunger mechanism 24b is maintained. The wire insertion / removal port 22b is not opened during the coating stripping operation, and the coating stripping operation can be performed stably.

[Embodiment 2]
Next, the structure of the coating stripping apparatus 1 ′ according to Embodiment 2 of the present invention will be described with reference to FIG. FIG. 7 is a side view for explaining the structure of the rotary driving tool of the coating stripping apparatus according to Embodiment 2 of the present invention (showing a state where the wire insertion / extraction opening is opened). The coating stripping apparatus 1 ′ according to the second embodiment is different from the coating stripping apparatus 1 according to the first embodiment in the rotation driving tool 20 ′ (mechanism for opening / closing the opening / closing gear piece 22). The difference will be described below.

  An opening / closing gear piece 22 is attached to the rotating disk 21 in the vicinity of the electric wire insertion / extraction opening 21b so as to be capable of swinging around the swing shaft 23. The opening / closing gear piece 22 is rotated by a torsion spring 25 (biasing means). 21 is biased in the direction of the rotational axis of 21 (the direction in which the wire insertion / removal port 21b is closed). The open / close gear piece 22 has an outer peripheral surface formed in an arc shape having the same diameter as the outer diameter of the rotating disc 21, and teeth having the same shape as the rotating disc 21 are formed on the outer peripheral surface. In the attaching part of the opening / closing gear piece 22 in the rotating disk 21, a part of the rotating disk 21 is notched so that the opening / closing gear piece 22 can be attached and swingable. One end of the torsion spring 25 is locked to the rotating plate 21, the other end is locked to the opening / closing gear piece 22, and is wound around the swing shaft 23. Is provided with a ball plunger mechanism 24 '(holding means). Further, a part of the turntable 21 is cut away at a portion where the front end of the open / close gear piece 22 in the turntable 21 is received and the both engage with each other. In this way, in a state where the opening / closing gear piece 22 is engaged with the rotating disk 21 (the electric wire insertion / removal port 21b is closed), the rotating disk 21 and the opening / closing gear piece 22 are rotationally driven as an integral gear. Has been.

  When the open / close gear piece 22 is pulled out of the opening of the case 27 against the biasing force of the torsion spring 25 and the electric wire insertion / extraction opening 21b is opened (the state shown in FIG. 4A), the ball plunger mechanism 24 'Is activated and the open state is maintained. And when this electric wire insertion / extraction opening 21b is an open state, since the electric wire insertion / extraction opening 21b corresponds with opening of case 27, the covered electric wire A can be inserted in the electric wire accommodation space 21a, and can be accommodated and hold | maintained. Further, when an external force is applied to the opening / closing gear piece 22 by another operating rod or the like, the ball plunger mechanism 24 ′ is released, and the opening / closing gear piece 22 is urged by the torsion spring 25 in the direction of the rotation axis of the rotating disk 21 to rotate. By engaging with the notched portion of the panel 21, the wire insertion / removal port 21b can be closed. According to such a configuration, since the open / close gear piece 22 is biased in the direction of the electric wire insertion / removal port 21b, the covering electric wire A is accommodated in the electric wire accommodation space 21a (the electric wire insertion / removal port 21b is closed). Even if the tool 10 is driven to rotate, it is possible to reliably prevent the wire insertion / extraction opening 21b from being opened during the stripping operation.

  Further, when the stripping device 1 ′ is pulled back in the direction away from the coated electric wire A by the remote control rod 2 after the stripping work of the insulating coating B by the stripping tool 10 is finished, the urging force of the torsion spring 25 is increased. The opening / closing gear piece 22 is oscillated against this to release the engagement with the turntable 21, and the wire insertion / removal port 21b can be opened, thereby easily removing the covered wire A from the wire receiving space 21a. Can be separated.

  As described above, in the covering stripping device 1 ′ according to the second embodiment, the torsion spring 25 as the urging means is disposed on the swing shaft 23 of the opening / closing gear piece 22, but the covered wire In a state where A is accommodated in the electric wire accommodating space 21a, the state where the electric wire insertion / removal port 21b is more reliably sealed by the opening / closing gear piece 22 biased toward the rotation axis is maintained, and the coating stripping work is performed. The electric wire insertion / extraction opening 21b is not opened midway, and the stripping operation can be performed stably.

(Coating stripping method for coated wires using a coating stripping device)
Next, referring to FIG. 1 to FIG. 4 and FIG. 7, there is a part overlapping with the above description regarding the method for stripping the coated wire using the stripping apparatus 1 ′ of the present invention. Explained.

  First, the distal end of the remote control rod 2 is inserted into the support cylinder 32 of the rotary driving tool 20 to support the coating stripping device 1 ′, and the distal end portion of the rotating operation means of the remote control rod 2 is connected to the connecting rotary shaft 35. Link. And the electric wire holding part 11e of the skin peeling tool main body 11 and the electric wire insertion / extraction opening 21b of the turntable 21 are made into an open state (it maintains an open state by ball plunger mechanism 24 '), and the covering stripping apparatus 1' is installed in the air The intermediate portion of the covered electric wire A is moved closer to the intermediate portion of the covered electric wire A, and the intermediate portion of the covered electric wire A is accommodated in the electric wire holding portion 11e and the electric wire accommodating space 21a.

  In addition, if the opening / closing gear piece 22 is pressed with another operating rod after the intermediate portion of the covered electric wire A is accommodated in the electric wire holding portion 11e and the electric wire accommodating space 21a, the electric wire insertion / extraction port 21b is maintained in the open state. Then, the ball plunger mechanism 24 'is disengaged, and the opening / closing gear piece 22 is swung by the urging force of the torsion spring 25, so that the electric wire insertion / extraction port 21b can be closed.

  Next, the tip hook of the opening / closing operation rod is suspended on the operation ring 15 and rotated to rotate the advance / retreat shaft 14 and advance the movable member 12 toward the electric wire holding portion 11e (up to the upper limit of advance / retreat). Then, the cutting edge 13a of the peeling blade 13 is bitten into the insulation coating B of the covered electric wire A held by the skin peeling tool main body 11 (electric wire holding portion 11e).

  Next, the connecting rotary shaft 35 is rotated by a remote operation from the rotating operation means of the remote control rod 2, and this rotational force is transmitted to the rotating disk 21 via the rotation transmitting unit 30 to rotate the rotating disk 21. Along with this, the peeling tool 10 attached to the rotating disk 21 via the rotating disk holding part 26 and the peeling tool holding part 40 is rotated around the axis on the central axis of the covered electric wire A, and the peeling blade 13 will strip off the insulation coating B with the blade width.

  When the remote control rod 2 is pulled back in the direction away from the coated electric wire A after the insulation coating B has been removed, the electric wire insertion / extraction opening 21b opens against the biasing force of the torsion spring 25, and the coating peeling device 1 'can be detached from the covered electric wire A.

  In such a coating stripping method, the operator performs the following operations: (1) an operation of accommodating the covered electric wire A in the electric wire holding portion 11e and the electric wire accommodating space 21a using the remote control rod 2, and (2) an opening / closing operation. The operation of causing the stripping blade 13 to bite into the covered electric wire A accommodated in the electric wire holding part 11e using a rod, and (3) the stripping tool 10 of the covered electric wire A by the rotating operation means of the remote control rod 2. It is only an operation of rotating around the central axis on the central axis, and by such a simple operation, the insulating coating B can be easily peeled off while the covered electric wire A suspended in the air is in a live state. Therefore, it is safe and the work efficiency is high.

  As described above, the coating stripping apparatus and the coating stripping method using the coating stripping apparatus of the present invention have been described. However, the technical aspect of the present invention is not limited to the contents described in the first and second embodiments.

  That is, in the first and second embodiments, the rotation transmission unit 30 has the first and second bevel gears 33 and 34 and the pinion 37. However, the pinion 37 is omitted and the rotation transmission unit 30 is omitted. Alternatively, the rotational force from the rotating operation means of the remote control rod 2 may be transmitted to the turntable 21 via another rotation transmission mechanism provided on the rotating disk 21. Further, the first bevel gear 33 and the second bevel gear 34 may also be configured such that the rotational force from the rotating operation means of the remote control rod 2 is transmitted to the rotating disk 21 by using another rotation transmission mechanism. Good.

  In the first embodiment, the turntable 21 is provided with a swingable opening / closing gear piece 22 to open and close the wire insertion / removal port 21b, and the ball plunger mechanisms 24a and 24b respectively provide the wire insertion / removal port 21b. In the second embodiment, the open / close gear piece 22 is held in the open state and the closed state. Furthermore, in the second embodiment, the ball plunger mechanism 24 ′ holds the open / close gear piece 22 in the open state of the wire insertion / removal port 21b, and a torsion spring. 25, the opening / closing gear piece 22 is held in the closed state of the electric wire insertion / removal port 21b by urging the opening / closing gear piece 22 in the direction of the rotation axis, but the ball plunger mechanisms 24a, 24b, 24 ′ are holding means. The torsion spring 25 is an example of an urging means, and the electric wire insertion / extraction opening 21b is opened by another holding means and urging means. A holds the closing gear piece 22 in the fine closed may. For example, the opening / closing gear piece 22 is held in the open state of the wire insertion / removal port 21b by urging the opening / closing gear piece 22 in a direction away from the rotation axis by an urging means such as a torsion spring, and a ball plunger mechanism or the like. You may comprise so that the opening-and-closing gear piece 22 may be hold | maintained in the closed state of the electric wire insertion / extraction opening | mouth 21b with a holding means.

  Further, in the second embodiment, the turntable 21 is provided with a swingable opening / closing gear piece 22 for opening and closing the wire insertion / removal opening 21b, and this opening / closing gear piece 22 is provided with a torsion spring 25 (biasing means). However, the configuration of the opening / closing gear piece 22, the configuration of the urging means corresponding thereto, and the urging direction can be changed as appropriate. For example, the wire insertion / removal opening 21b may be opened and closed by sliding the opening / closing gear piece in the circumferential direction. In this case, the urging means moves the opening / closing gear piece in one direction in the circumferential direction ( The opening / closing gear piece is configured to urge the electric wire insertion / removal opening 21b in a closing or opening direction, and a holding means such as a ball plunger mechanism holds the opening / closing gear piece in a closed state or an open state of the electric wire insertion / removal opening 21b. What is necessary is just to comprise.

It is a perspective view for demonstrating the outline | summary of the coating stripping apparatus which concerns on Embodiment 1 of this invention. It is a front view for demonstrating the structure of the coating stripping apparatus which concerns on Embodiment 1 of this invention. BRIEF DESCRIPTION OF THE DRAWINGS (a) is a side view and (b) is a front view for demonstrating the structure of the peeling tool of the coating stripping apparatus which concerns on Embodiment 1 of this invention. It is a perspective view for demonstrating the structure for mounting | wearing the rotation drive tool with the peeling tool of the coating stripping apparatus which concerns on Embodiment 1 of this invention. It is a side view for explaining the structure of the rotation driving tool of the coating stripping apparatus according to Embodiment 1 of the present invention (in a state where the wire insertion / extraction opening is open). It is a side view for demonstrating the structure of the rotation drive tool of the coating stripping apparatus which concerns on Embodiment 1 of this invention (a state where an electric wire insertion / extraction opening is closed). It is a side view for demonstrating the structure of the rotation drive tool of the coating stripping apparatus which concerns on Embodiment 2 of this invention (a state where an electric wire insertion / extraction opening is open). (A) is a front view and (b) is a side view for demonstrating the structure of the conventional coating stripper.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cover stripping apparatus 2 Remote control stick 10 Skin stripping tool 11 Skin stripping tool main body 11e Electric wire holding part 12 Movable member 13 Skin stripping blade 13a Cutting edge 14 Advancing / retreating axis (skin stripping blade drive means)
20 Rotating Drive 21 Rotating Plate 21a Electric Wire Housing Space 21b Electric Wire Inserting / Removing Port 22 Opening / Closing Gear Piece 23 Oscillating Shaft 25 Torsion Spring (Biasing Means)
27 Case 30 Rotation transmission part (rotation transmission means)
40 Skin peeling tool holding part 60 Cover stripper 61 Grasping part 62 Blade body 63 Cutting edge A Covered electric wire B Insulation cover C Core wire

Claims (3)

A skinning tool body having an electric wire holding part for holding a covered electric wire, a skinning blade guided and supported by the skinning tool body and moving forward and backward with respect to the electric wire holding part, and moving the skinning blade back and forth, In the forward position, the stripping blade is engulfed into the insulation coating of the coated electric wire, and in the retracted position, a space for introducing the coated electric wire from the side is formed between the electric wire holding portion and the stripping blade, and the stripping blade and skinning blade drive means have a regulating capable stopper at a predetermined forward movement position, with comprises a skinning device with a
A turntable in which a part of the outer periphery is cut out to form a wire receiving space in which the covered wire can be inserted and removed in the center, and a wire insertion / extraction opening is formed in the cutout part, and the turntable is rotated. A case that can be held, and a rotation transmitting means that supports the case and is attached to the tip of the remote control rod and transmits the rotation of the rotary shaft of the remote control rod to the rotation of the rotating disk. Equipped with a rotary drive equipped,
Wherein the rotation center of the rotating disk, so that the central axis of the coated electric wire held by the skin stripping device body is located, held skinning tool provided with a mounting base provided on the skin stripping device to said rotary disc The insulation coating is stripped off with the width of the skinning blade by removably attaching to the part and rotating the skinning tool body around the central axis of the covered electric wire by rotating the remote control rod. The coating stripping device.   An opening / closing gear piece is swingably attached to a position on the turntable side adjacent to the wire insertion / removal opening, and the opening / closing gear piece is directed to a turning shaft of the turntable toward the rotation axis of the turntable. And a biasing means for biasing, and when the wire insertion / removal port is closed, the opening / closing gear piece is engaged with the rotating disk by the biasing force of the biasing means and rotates integrally. The coating stripping apparatus according to claim 1. A coating stripping method for stripping the insulation coating of a coated electric wire using the coating stripping apparatus according to claim 1 or 2,
The sheathed stripping device is connected to the remote control rod and supported so as to approach the sheathed wire in the air, and the sheathed wire is accommodated in the wire holding portion and the wire housing space.
Next, the peeler main body is remotely operated using an opening / closing operation rod and held in the electric wire holding part, and further, the electric wire insertion / removal port is closed to accommodate the covered electric wire in the electric wire accommodation space, and the peeling blade To the upper limit of forward and backward movement to bite into the insulation of the covered wire,
Next, the turntable of the rotary driving tool is rotated by rotating the remote control rod, and the peeling tool attached to the turntable is rotated around the central axis of the covered electric wire, so that the peeling blade becomes its blade. A method for stripping a coated electric wire, comprising stripping the insulation coating by width.

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