JP2019195246A - Wire coating removing device - Google Patents

Abstract

To provide a wire coating removing device configured to facilitate positioning while enlarging an area in which a coating removing part can grip an installed wire.SOLUTION: A wire coating removing device 1 comprises: a main body part 5 having a frame 2, a first gear 11 contained in the frame 2 with a first rotational axis P1 as an axis center, a second gear 12 for interlocking the first gear 11, a coupling part 3 disposed so as to be connectable to an operation rod 94 with a second rotational axis P2 as an axis center, and a gear box 4 which is coupled and fixed to the coupling part 3 and the frame 2 and transmits a rotational force of the operation rod 94 to the second gear 12; and a coating removing part 9 which is coupled so as to be capable of corotating with the first gear 11. The coating removing part 9 includes: a receiving part 7 disposed so as to be capable of making contact with an outer periphery of an electric wire E1; a sliding part 8 slidable relative to the receiving part 7 and disposed so as to be capable of gripping the electric wire E1 together with the bearing part 7; and a coating removing blade 81 provided in the sliding part 8.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an electric wire covering stripping device that strips an insulating coating of an installed electric wire.

  The overhead wires are aerial wired at a position several meters higher than the ground. When branch connection is made for power distribution, a construction operator operates an electric wire stripping device using an insulating operation rod, and strips the insulating coating of an installed electric wire in a predetermined range in a live state.

  Conventionally, a plurality of sheath strippers each corresponding to the outer diameter standard of an installed electric wire are prepared in advance, and the said sheath stripper is replaced according to the outer diameter standard or cross-sectional area standard of the installed electric wire A stripping device is known (Patent Document 1: Japanese Patent Laid-Open No. 2009-060753, Patent Document 2: Japanese Patent Laid-Open No. 2008-136299). Further, an insulating operation rod (referred to as a drive hook) is known in which a wire operator stripping device is operated by a worker below and the gripping portion and the tip portion are insulated (Patent Document 3: Special). No. 2008-253059).

JP 2009-060753 A JP 2008-136299 A JP 2008-253059 A

  There are not a few cases where the outer diameter of the installed electric wire is found at an outdoor site. For this reason, in the case of a conventional wire sheath stripping device, the construction worker combines a plurality of sheath strippers (cover stripping portions) and rotary drive tools (main body portions) respectively corresponding to the outer diameter standards of the installed wires. It is necessary to carry in pairs. On the other hand, the stripping tool must be replaced on site every time, and every time the stripping tool is replaced, it is necessary to align the stripping tool to the outer diameter of the installed electric wire. There were problems such as complexity. In addition, it is difficult to maintain a set of a plurality of coating strippers and rotary drive tools, and for example, there is a problem that a stripping strip removed at the time of replacement is left on the site.

  The present invention has been made in view of the above circumstances, and it is possible to perform a stripping operation with a single stripping portion with respect to a plurality of outer diameter standards of the electric wire by expanding the range in which the stripping portion can grip an installed electric wire. In addition, an object of the present invention is to provide an electric wire stripping device having a configuration capable of easily aligning with the outer diameter of the electric wire.

  As an embodiment, the above-described problem is solved by a solution as disclosed below.

  An electric wire covering stripping device according to the present invention includes a frame having an accommodating space for accommodating an installed electric wire, a notch serving as an entrance of the electric wire to the accommodating space, and a first rotation shaft as an axis. A first gear built in the frame so as to be rotatable around the wire, a second gear built in the frame and interlocking with the first gear, and a second rotating shaft orthogonal to the first rotating shaft And a gear box that is connected and fixed to the connection portion and the frame and transmits the rotational force of the first operation rod to the second gear. And a stripping portion connected to the first gear so as to be able to rotate together, the stripping portion being arranged so as to be able to contact the electric wire in the state of being accommodated in the accommodating space. With respect to the receiving part and the receiving part A slide part which is movable and is arranged so as to be able to grasp the outer periphery of the electric wire together with the receiving part; and a coating stripping blade which is arranged on the slide part, and is gripped by the receiving part and the slide part It is the structure which becomes the position where the blade edge | tip of the said coating peeling blade cuts into the insulation coating of the said electric wire of the state which was in a state.

  According to this configuration, when the slide unit is rotated by a predetermined amount by operating the first operating rod, the slide unit becomes a lower position of the installed electric wire, and when the slide unit is slid by pushing up the slide unit in a direction approaching the receiver unit, And the slide portion grip the electric wire, and the shaft center of the first rotating shaft and the center line of the electric wire coincide with each other to be in a rotatable state. Therefore, the outer diameter of the installed electric wire can be adjusted within a range of, for example, several tens of millimeters by a single stripping portion, and the outer diameter of the installed electric wire can be adjusted by a simple operation of pushing the slide portion toward the receiving portion and sliding it. It can be aligned.

  According to the present invention, it is possible to perform a stripping operation with a single stripping portion for a plurality of outer diameter standards of a built-in electric wire, and to easily perform alignment according to the outer diameter of the wire. A stripping device is realized.

It is the schematic perspective view which shows the example of the electric wire coating stripping apparatus which concerns on the 1st Embodiment of this invention, and is the figure seen from the front side. It is a front view of the electric wire coating stripping apparatus which concerns on 1st Embodiment. It is a right view of the electric wire coating stripping apparatus which concerns on 1st Embodiment. It is a rear view of the electric wire coating stripping apparatus which concerns on 1st Embodiment. It is a schematic front view which shows the example of the main-body part which comprises the electric wire coating stripping apparatus of 1st Embodiment. FIG. 6 is a cross-sectional view taken along the line VI-VI in which a part of the internal structure in FIG. 5 is omitted. It is a general | schematic structural diagram which shows the example of arrangement | positioning of the gear in the main-body part of 1st Embodiment. It is a schematic front view which shows the example of the coating stripping part which comprises the electric wire coating stripping apparatus of 1st Embodiment. It is sectional drawing which abbreviate | omits and shows a part of internal structure in FIG. It is a schematic figure showing an example of a use mode of an electric wire covering stripping device of a 1st embodiment. It is the schematic perspective view which shows the example of the electric wire coating stripping apparatus which concerns on the 2nd Embodiment of this invention, and is the figure seen from the right side surface side. It is the schematic perspective view which shows the example of the electric wire coating stripping apparatus of 2nd Embodiment, and is the figure seen from the left side surface side. It is a front view of the electric wire coating stripping apparatus of 2nd Embodiment. It is a schematic diagram which shows the example of the usage condition of the electric wire coating stripping apparatus of 2nd Embodiment. It is a schematic perspective view which shows the example of a coating peeling blade. It is a general | schematic fragmentary sectional view which shows the example of a 2nd operation stick.

  The present embodiment is an electric wire coating stripping device 1 that strips an insulation coating of an installed electric wire. Hereinafter, it may be simply referred to as “device 1”. Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Here, in order to make it easy to explain the positional relationship of each part of the apparatus 1, the directions are indicated by arrows X, Y, and Z in the drawing. Note that components having the same function are denoted by the same reference symbols throughout the drawings for describing the embodiments, and the repetitive description thereof may be omitted.

[First embodiment]
As shown in FIGS. 1 to 4, the wire sheath stripping device 1 according to the first embodiment includes a body portion 5 in which a first gear 11 is incorporated and a sheath that is coupled to the first gear 11 so as to be able to rotate together. A stripping portion 9 is provided. The frame 2 is a housing having an accommodation space V1 for accommodating the installed electric wire E1. The first gear 11 is built in the frame 2 and is disposed so as to be rotatable about the first rotation axis P1.

  5-7 is a figure which shows the main-body part 5 which comprises the apparatus 1. As shown in FIG. The first gear 11 has a through hole 11a larger than the outer diameter of the electric wire E1 at the center, and a notch U1 that serves as an inlet of the electric wire E1 is formed on the outer diameter side. U1 is continuous. The first gear 11 is an external gear in which a through hole 11a and a notch U1 are formed, and has a “C shape” in a front view (see FIG. 7).

  In the present embodiment, as an example, the main body portion 5 includes a holding portion 6 that is coupled and fixed to the first gear 11 outside the frame 2 and rotates together. Two support plates 25 are rotatably disposed on both sides of the frame 2. The support plate 25 has a “C shape” in a front view, and is connected and fixed with the first gear 11 interposed therebetween. And the holding | maintenance part 6 is arrange | positioned adjacent to the front side of the flame | frame 2, and the support plate 25 and the holding | maintenance part 6 are connected and fixed.

  As shown in FIG. 6, the main body 5 includes a connecting portion 3 disposed so as to be connectable to the first operating rod 94 about a second rotating shaft P2 orthogonal to the first rotating shaft P1, and a first operation. In order to transmit the rotational force of the rod 94 to the second gear 12, the connecting portion 3 and the gear box 4 connected and fixed to the frame 2 are provided. In the example of FIG. 6, the gear 32 and the gear 42 are disposed in the gear box 4. The gear 32 is connected and fixed to the shaft 31 and meshes with the gear 42. Both the gear 42 and the second gear 12 are connected and fixed to the shaft 41. The gear 32 and the gear 42 are miter gears. According to this example, the gear 32 and the gear 42 can be made the same component. In addition, it is not limited to this example, The gear 32 and the gear 42 may be bevel gears. The first operation rod 94 is an operation rod with a joint, and for example, a conventional product described in Patent Document 3 or the like can be applied.

  As shown in FIG. 7, the main body 5 is disposed at positions on both sides of the first gear 11, the second gear 12 that interlocks the first gear 11, and the second gear 12, and meshes with the second gear 12. Two third gears 13 are provided, and these gears 11, 12, and 13 are built in the frame 2. Then, both or any one of the third gears 13 is configured to mesh with the first gear 11. According to this configuration, the rotational force transmitted from the first operating rod 94 to the second gear 12 is applied to the two third gears with respect to the first gear 11 of the external gear in which the through hole 11a and the notch U1 are formed. Any one of 13 or both can be reliably transmitted to the first gear 11. In the example of FIG. 7, the axis of the second gear 12 is orthogonal to the line of the second rotation axis P2, and the two third gears 13 are disposed at positions symmetrical to the second rotation axis P2. The According to this example, the two third gears 13 can be made the same component. Note that the present invention is not limited to this example, and the two third gears 13 may be disposed at positions asymmetric with respect to the second rotation axis P2.

  In the present embodiment, as an example, the main body 5 is provided with a first ratchet 51. The first ratchet 51 includes a locking portion 51 a that is connected and fixed to the support plate 25, and an arm portion 51 b that operates within the frame 2. Here, the rotation direction D <b> 1 is a direction in which the first gear 11 rotates in the forward direction, and coincides with the traveling direction of the coating stripping blade 81. When the shaft 31 is rotated in the rotation direction C1 by the first operating rod 94, the first gear 11 rotates in the rotation direction D1.

  The first ratchet 51 does not hinder the rotation of the first gear 11 when the first gear 11 rotates forward. On the other hand, the first ratchet 51 is configured to restrict the reverse rotation of the first gear 11 when the first gear 11 rotates reversely. According to this configuration, since the reverse rotation of the first gear 11 is prevented, positioning can be easily performed when the main body 5 is inserted into the installed electric wire E1 (at the time of approach). In addition, when the insulation coating stripping operation is completed, the main body 5 can be easily detached from the electric wire E1.

  FIG. 8 and FIG. 9 are diagrams showing the coating stripping part 9 constituting the apparatus 1. The coating stripping part 9 includes a receiving part 7 disposed so as to be able to contact the outer periphery of the electric wire E1, a slide part 8 disposed so as to be able to grip the electric wire E1 together with the receiving part 7, and a receiving part 7. And a stripping blade 81 disposed on the slide portion 8 at a position where it can be cut into the insulating coating of the electric wire E1. In the example of FIG. 8, the first gripping surface 7a of the receiving portion 7 is formed with a dent in an arc shape when viewed from the front so as to be along the outer periphery of the electric wire E1. In addition, the second gripping surface 8a of the slide portion 8 is subjected to a surface treatment such as nitriding, for example, so as to reduce the frictional force with the electric wire E1 when the main body portion 5 is rotated in the insulation coating stripping operation. . The slide portion 8 may have a configuration in which convex portions that can bite into the outer periphery of the electric wire E1 are formed on the second gripping surface 8a at predetermined intervals.

  In the present embodiment, the slide portion 8 includes a holding plate 83 that is in contact with the outer periphery of the electric wire E <b> 1, and is configured to adjust the position where the cutting edge 81 a of the cover peeling blade 81 is cut by the holding plate 83. In the example of FIG. 12, the holding plate 83 is a slide portion that can be replaced by fixing means such as screws at positions corresponding to the cutting edge 81 a of the coating peeling blade 81 and on both sides in the short direction of the coating peeling blade 81. 8 is fixedly attached. For example, by attaching the presser plate 83 having a small thickness, the allowance of the cutting edge 81a of the cover peeling blade 81 can be increased. For example, by attaching a thick presser plate 83, the allowance of the cutting edge 81a of the coating peeling blade 81 can be reduced. According to this configuration, by attaching the presser plate 83 having a thickness corresponding to the coating thickness of the electric wire E <b> 1, the protrusion of the cutting edge 81 a of the coating stripping blade 81 can be adjusted. Alternatively, by attaching the presser plate 83 to the slide portion 8 so that the height position of the presser plate 83 can be adjusted, similarly, the protrusion of the cutting edge 81a of the cover peeling blade 81 can be adjusted. In this case, the second gripping surface 8 a of the slide portion 8 is a surface in contact with the outer periphery of the electric wire E <b> 1 of the presser plate 83.

  In the present embodiment, the coating stripping part 9 includes a first adjusting part 21 that adjusts the position of the receiving part 7 by moving the receiving part 7 in a direction in which the receiving part 7 is moved toward and away from the first rotation axis P1. The first adjusting portion 21 is connected to the receiving portion 7 at a position opposite to the slide portion 8 side. According to this configuration, the rotation center of the receiving portion 7 can be made to coincide with the center line of the electric wire E1 with high accuracy.

  A dial 21 a is disposed on the front side of the first adjustment unit 21. As an example, the first adjusting portion 21 has a built-in cam mechanism, and when the dial 21a is set to a predetermined scale, the receiving portion 7 is moved forward or backward by a stroke corresponding to the scale. The first adjustment unit 21 is provided with a lock unit 21b that locks the dial 21a. According to this example, when the dial 21a is rotated once, the receiving portion 7 can be returned to the origin position. Note that the present invention is not limited to this example, and a rack and pinion mechanism, a worm gear mechanism, or other known mechanisms may be used.

  In the present embodiment, the coating stripping part 9 includes an angle adjusting unit 23 that adjusts the cutting edge angle of the coating stripping blade 81, and a dial 23 a is disposed on the front side of the slide unit 8. The angle stripping blade 81 is disposed on the slide portion 8 by the angle adjusting portion 23 so that the blade edge 81a is cut into the insulating coating of the electric wire E1 held by the receiving portion 7 and the slide portion 8. As an example, the cam mechanism is built in the slide portion 8, and when the dial 23 a is set to a predetermined scale, the edge angle of the stripping blade 81 is adjusted by an angle corresponding to the scale. Here, a lock portion for locking the dial 23 a is disposed on the slide portion 8. The lock portion can be provided on the dial 23a (not shown). According to this example, when the dial 23a is rotated once, the coating stripping blade 81 can be returned to the origin position. Note that the present invention is not limited to this example, and the dial 23a and the cover stripping blade 81 may be directly connected, a gear mechanism may be used, and other known mechanisms may be used.

  The second adjuster 22 includes a first hook 22b disposed so as to be able to be engaged with an operation rod with a hook so as to be rotatable about a third rotation axis P3 orthogonal to the first rotation axis P1. The 2nd adjustment part 22 is an eye nut as an example. According to this example, the operator can rotate and adjust the second adjustment unit 22 at a position away from the apparatus 1 using the operation rod with a hook with a hook at the tip. The second adjusting portion 22 is not limited to an eye nut, and may be an eye bolt, a nut having a simple configuration, or other known tightening mechanism.

  In this embodiment, the 2nd adjustment part 22 is the structure which makes the slide part 8 approach the receiving part 7 by rotating it clockwise to G1 direction centering on the 3rd rotating shaft P3. According to this example, the connecting bolt 92 and the tightening direction can be set in the opposite direction so that the connecting bolt 92 is not loosened.

  In this embodiment, the coating stripping part 9 is provided with a hollow support part 91 that connects the slide part 8 and the receiving part 7 so as to be able to contact and separate. Here, the slide portion 8 has a cylindrical coupling portion 82, and the outer peripheral surface of the cylindrical support portion 91 abuts on the inner surface 82 a of the counterbore hole of the coupling portion 82, so that the slide portion 8, the receiving portion 7, Are connected to each other. The slide portion 8 is slidably disposed along the plate portion 71 provided in the receiving portion 7.

  Here, the connection bolt 92 passes through the support portion 91 and the compression spring 93 to connect the first adjustment portion 21 and the second adjustment portion 22. The connecting bolt 92 is formed with a trapezoidal screw. The compression spring 93 is disposed in a counterbore hole 91 a formed in the support portion 91 and biases the slide portion 8 in a direction away from the receiving portion 7. According to this configuration, it is possible to prevent the coating stripping blade 81 from coming into contact with the electric wire E1 when the main body 5 is inserted into the electric wire E1 (at the time of approach) in the attaching operation of the device 1 to the electric wire E1. In addition, when the insulation coating stripping operation is completed, it is possible to prevent the coating stripping blade 81 from coming into contact with the electrical wire E1 when the main body 5 is removed from the electrical wire E1.

  In the present embodiment, the coating stripping part 9 is provided with the second ratchet 52 on the receiving part 7 at a position opposite to the electric wire E1 side. The second ratchet 52 is configured to be restricted when the moving direction of the slide portion 8 is opposite to the direction approaching the receiving portion 7. According to this configuration, when the device 1 is attached, when the electric wire E1 is gripped, the operation of bringing the slide portion 8 into contact with the outer periphery of the electric wire E1 is reliably advanced. Further, since the second ratchet 52 can be released by a simple operation of pulling down the operation lever 52a in the work of removing the device 1, the work of separating the slide portion 8 from the outer periphery of the electric wire E1 can be performed quickly.

  In the present embodiment, the operation lever 52 a is integrally connected to the second ratchet 52, and the slit 71 a is formed in the plate portion 71. Further, an urging means 52 b such as a compression spring that urges the operation lever 52 a in a direction away from the plate portion 71 is disposed on the plate portion 71. The distal end of the operation lever 52a protrudes from the slit 71a. According to this configuration, the second ratchet 52 can be operated from the outside by the operation lever 52a.

  As shown in FIGS. 1 to 6, the main body portion 5 includes a holding portion 6 that is connected and fixed so as to be able to rotate together with the first gear 11 on the outside of the frame 2, and the covering strip portion 9 is The both sides of the first adjusting portion 21 are held by the holding portion 6, and the covering stripping portion 9 is detachably attached to the holding portion 6 by pulling the pressing portion 61. According to this configuration, the covering strip 9 can be easily attached to the main body 5. In addition, since the coating stripping part 9 can be easily detached from the main body part 5, the maintainability is improved. In this configuration, when an electric wire having a standard exceeding the adjustable range of the size for gripping the electric wire E1 is installed on the stripping portion 9, the stripping is performed by separately changing the adjustable range of the size for holding the electric wire E1. The part 9 may be prepared and attached. Moreover, it is not limited to the case where the coating stripping part 9 is detachably attached to the holding unit 6, and the coating stripping part 9 may be fixed to the holding unit 6.

  FIG. 10 is a schematic diagram illustrating an example of a usage mode of the wire sheath stripping apparatus 1 according to the first embodiment. The operation method of the wire sheath stripping device 1 of the present embodiment will be described below.

  As a preparatory work, the lock portion 21b is rotated forward to release the lock, and the dial 21a of the first adjusting portion 21 is rotated in accordance with the outer diameter standard or the cross-sectional area standard of the installed electric wire E1 to position the receiving portion 7 The lock part 21b is reversely rotated and locked. Next, the dial 23a of the angle adjusting unit 23 is unlocked, the dial 23a is rotated in accordance with the outer diameter standard or the cross-sectional area standard of the installed electric wire E1, and the blade edge angle of the coating stripping blade 81 is adjusted. The dial 23a of the adjustment unit 23 is locked. In this way, the preparation work is completed. According to this example, since the dial 21a and the dial 23a are both disposed on the front side of the device 1, adjustment according to the outer diameter standard and the cross-sectional area standard of the installed electric wire E1 can be easily performed ( (See FIG. 8).

  After the preparatory work, the first operating rod 94 (operating rod with joint) is connected to the connecting portion 3 of the apparatus 1, and the covering strip 9 is in a state where the slide portion 8 is in the upper position and the receiving portion 7 is in the lower position. The frame 2 of the main body 5 is inserted into the installed electric wire E1 (see FIG. 10).

  Next, the rotational force of the first operating rod 94 is transmitted to the first gear 11, and the coating stripping part 9 is rotated halfway in the rotational direction D1, so that the slide part 8 is at the lower position and the receiving part 7 is at the upper side. The position state. Then, the slide portion 8 is pushed up by the operating rod with hook and brought close to the electric wire E1, and the second adjusting portion 22 is rotated to the side where the electric wire E1 is tightened by the operating rod with hook to further bring the slide portion 8 closer to the receiving portion 7. Then, the electric wire E1 is tightened until the electric wire E1 is gripped by the slide portion 8 and the receiving portion 7. When the electric wire E1 is gripped by the slide portion 8 and the receiving portion 7, the blade edge 81a is cut into the insulating coating of the electric wire E1.

  Then, the rotational force of the first operating rod 94 is transmitted to the first gear 11, and the coating stripping blade 81 rotates the coating stripping portion 9 one or more times in the direction of the rotation direction D1 while cutting the insulation coating of the electric wire E1. Then, the insulation coating of the electric wire E1 is peeled off.

  The device 1 peels off the insulation coating of the electric wire E1 within a predetermined range, the sliding portion 8 is in the lower position and the receiving portion 7 is in the upper position by the rotational force of the first operating rod 94, and the second is operated by the operating rod with hook. The adjustment part 22 is rotated 2-3 times on the loose side of the electric wire E1, and the slide part 8 is slightly separated from the receiving part 7, so that the sheath stripping part 9 is rotated once in the direction of the rotation direction D1 to insulate the electric wire E1. Excise.

  After stripping off the insulation coating of the electric wire E1 by the device 1, the second adjusting portion 22 is rotated 2-3 times on the loosening side of the electric wire E1 to separate the slide portion 8 from the receiving portion 7, and the operation rod with hook is used. The operation lever 52a is pulled down to release the second ratchet 52, the slide part 8 is further separated from the receiving part 7, and the main body part 5 is removed from the installed electric wire E1. In this way, the insulation coating stripping operation for the electric wire E1 is completed.

  According to the present embodiment, when the slide portion 8 is rotated by a predetermined rotation by operating the first operating rod 94 (operating rod with joint), the slide portion 8 becomes a position below the erected electric wire E1 and moves in the direction approaching the receiving portion 7. The second adjusting portion 22 causes the receiving portion 7 and the slide portion 8 to grip the electric wire E1, and the axis of the first rotating shaft P1 and the center line of the electric wire E1 coincide with each other. Can be rotated. Therefore, the outer diameter of the erected electric wire E1 can be adjusted within a range of several tens of millimeters by the single stripping portion 9, and the slide portion 8 is pushed up and moved in the direction approaching the receiving portion 7 by the operation rod with a hook. The operation can be aligned with the outer diameter of the erected wire E1.

[Second Embodiment]
Then, the electric wire coating stripping apparatus 1 of the 2nd Embodiment of this invention is demonstrated. In the present embodiment, the basic configuration of the main body portion 5 and the covering stripping portion 9, the alignment according to the outer diameter of the electric wire E1, and the covering stripping portion 9 are rotated in the direction of the rotation direction D1 to thereby change the electric wire E1. The basic operation for stripping off the insulation coating is the same as in the first embodiment.

  In the second embodiment, in particular, the receiving portion 7 is formed with a V-shaped first gripping surface 7a that can be in contact with the outer periphery of the electric wire E1, and protrudes from the first gripping surface 7a at a predetermined interval. The point provided with the feed part 7b which is provided and sends out the insulation coating E1a of the electric wire E1 to the blade edge | tip 81a side of the coating stripping blade 81 is different from the above-mentioned 1st Embodiment. Further, the second embodiment is provided with the collar portion 14 that houses the end E1b of the insulating coating E1a in a state where the cutting edge 81a of the coating peeling blade 81 is cut and peeled off. It is different from the embodiment. Hereinafter, this embodiment will be described focusing on these differences.

  As shown in FIGS. 11 to 14, in the electric wire sheath stripping device 1, the first gripping surface 7 a of the receiving portion 7 has a V-groove shape (“V shape” in front view). And the feed part 7b protrudes and arrange | positions by the predetermined interval in the longitudinal direction (1st rotating shaft P1-P1 line direction) of the 1st holding surface 7a. The plate-like feeding portion 7b has a “V shape” corresponding to the V shape of the first gripping surface 7a in a front view. As shown in FIG. 11, the feed portion 7 b is inclined at a predetermined angle with respect to the first rotation axis P <b> 1-P <b> 1 line so that the back side is closer to the main body portion 5 than the front side. When the coating stripping part 9 rotates in the rotation direction D1, the apparatus 1 travels in the traveling direction Y1, and the feeding unit 7b feeds the insulating coating E1a to the cutting edge 81a side of the coating stripping blade 81 when traveling. Yes. The feeding portion 7b is a feeding mechanism that is arranged like the arrangement of the screw portion of the female screw.

  In the example of FIG. 11, three feeding portions 7b are arranged at a predetermined interval. In addition, this embodiment is not limited to said structure, The sending part 7b may be arrange | positioned by 2 cases, or may be arrange | positioned 4 or more.

  As an example, the receiving portion 7 has a main portion having the first gripping surface 7a made of aluminum, and the feeding portion 7b made of a hard metal such as a steel material or a stainless material, or ceramics. In the example of FIG. 11, the receiving portion 7 is formed by combining a plurality of components, and has a configuration that can be assembled and disassembled. According to this, maintainability such as replacement due to wear or the like of the feeding portion 7b is improved. Moreover, it is easier to process the receiving portion 7 than when processing steel, stainless steel, or the like.

  According to the present embodiment, when the insulating coating E1a is stripped over a predetermined length, even when the main body portion 5 and the coating stripping portion 9 are rotated a plurality of times in the rotation direction D1, the feeding portion 7b is provided with the insulating coating E1a. Is sent to the blade edge 81a side, so that stable stripping work can be performed without depending on the skill of the operator.

  In the present embodiment, a lock portion 21b is provided on the holding portion 6 side at a position operable from the outside. In the examples of FIGS. 12 and 13, the lock portion 21b is a cam lever. Thereby, it is possible to prevent the dial 21a from being loosened during the operation of stripping the insulation coating. Further, since the lock state can be known at a glance depending on the position of the cam lever, it is possible to prevent forgetting the lock.

  As shown in FIGS. 11 to 14, the cover stripping portion 9 in the apparatus 1 is a collar portion 14 that houses the end E1b of the insulating coating E1a in a state where the cutting edge 81a of the coating stripping blade 81 is cut and stripped. It has. The collar portion 14 is disposed on the slide portion 8 at a position where the opening 14a faces the blade edge 81a side of the coating stripping blade 81, and the collar portion 14b of the collar portion 14 slides with a fixing member such as a bolt or a screw. It is attached to the part 8. The collar part 14 has a cup shape, and in this example, the opening 14 a of the collar part 14 has a larger diameter than the bottom part inside the collar part 14.

  For example, the flange 14 is made of a mesh made of a metal wire such as a steel material or stainless steel, a punching metal made of a steel plate or a stainless steel plate, a transparent or translucent resin material, or the like. As a result, the end E1b of the insulating coating E1a in the state of being accommodated in the flange 14 can be visually recognized from the outside, and the weight of the device 1 can be reduced.

  The second adjuster 22 includes a first hook 22b disposed so as to be able to be engaged with the second operation rod 95 so as to be rotatable about a third rotation axis P3 orthogonal to the first rotation axis P1. The first hook 22b has a half-ring shape, and the first magnet 22a that is attracted to the second magnet 96a at the tip of the second operating rod 95 is disposed on the axis of the third rotating shaft P3. Yes. The 2nd adjustment part 22 is an eye nut, for example. According to this example, the operator uses the second operation rod 95 (referred to as a drive hook) with a hook at the tip to adjust by rotating the second adjustment unit 22 at a position away from the device 1. can do.

  As shown in FIG. 14, when the insulation coating E1a of the installed electric wire E1 is stripped to a predetermined length, the blade edge 81a is formed on the insulation coating E1a by rotating the main body 5 and the coating stripping portion 9 in the rotation direction D1. In a state where the cutting edge 81a is cut, the feeding portion 7b feeds the insulating coating E1a toward the cutting edge 81a, and the apparatus 1 advances in the direction of the traveling direction Y1 while exposing the core wire E1c of the electric wire E1. The end E1b of the insulating coating E1a sent out to the blade edge 81a side by the portion 7b is accommodated in the flange portion 14. The end E1b accommodated in the collar part 14 is directed toward the bottom of the collar part 14 along the inner peripheral surface of the collar part 14 while pushing the inner peripheral surface of the collar part 14 by the elastic force of the stripped insulation coating. .

  According to the present embodiment, the peeled end E1b of the insulation coating E1a is directed toward the bottom of the collar 14 along the inner circumferential surface of the collar 14 while pushing the inner circumferential surface of the collar 14. The taken insulation coating E1a can be prevented from falling off, and a stable stripping operation can be performed in a safer state.

  The present invention is not limited to the embodiments described above, and various modifications can be made without departing from the present invention. For example, in the above-described embodiment, the wire sheath stripping device 1 has been described with the configuration in which the holding portion 6 is connected and fixed so as to be able to rotate with the first gear 11 outside the frame 2, but is not limited to this configuration. For example, the plate portion of the stripping portion 9 can be connected and fixed on the outside of the frame 2 so as to be able to rotate together with the first gear 11.

(Coating stripping blade)
Subsequently, the coating stripping blade 81 will be described. FIG. 15 is a schematic perspective view showing an example of the coating stripping blade 81. The coating stripping blade 81 is a kind of hard tool, and is made of steel or stainless steel. The coating stripping blade 81 includes a cutting edge 81a and a main body portion 81b, and a through hole 81c is formed in the block-shaped main body portion 81b. The stripping blade 81 is used by being fixed to the slide portion 8 of the apparatus 1 through a fixing member such as a bolt passing through the through hole 81c.

  The cutting edge 81a of the coating stripping blade 81 has an external shape obtained by dividing the truncated cone shape in half in the axial direction, and is formed by engraving a counterbore in the axial direction. Thus, the structure is such that the stripped insulation coating E1a can be easily fed from the blade edge 81a to the rear side of the main body 81b while making a cut in the insulation coating E1a.

(Second operation bar)
Next, the second operation rod 95 will be described. FIG. 16 is a schematic partial cross-sectional view showing an example of the second operating rod 95. The second operating rod 95 has a structure in which the operating portion 99, the torque transmission portion 98, the cylindrical portion 97, and the tip portion 96 are integrally connected with the fourth rotation axis P4-P4 line as an axis. For example, when the operator holds the cylinder part 97 with one hand and rotates the operation part 99 in the rotation direction C2 with the other hand, the tip part 96 is rotated in the same rotation direction via the torque transmission part 98. Rotate to C2.

  When transmitting torque from the operating unit 99 in the axial direction of the fourth rotating shaft P4, the torque transmission unit 98 has a built-in torque limiter 98a that limits the upper limit of transmission torque in the gear body 98b. According to this configuration, since the torque limiter 98a is disposed on the second operating rod 95, even if there is a variation in the force of the operator, the device can be operated with a constant tightening force regardless of the operator. 1 can be tightened, so that variation in the stripping amount in the thickness direction of the insulating coating E1a of the electric wire E1 can be eliminated. In other words, the torque limiter 98a disposed on the second operating rod 95 is configured to be able to adjust the amount of cut by which the cutting edge 81a of the coating stripping blade 81 cuts into the insulating coating E1a.

  The operation portion 99 and the outer cylinder 97a have insulating properties at least on the outer peripheral portion, and are insulated from the distal end portion 96. The operation part 99 is connected to the torque limiter 98a via the shaft part 98f and the bearing 98e. The torque limiter 98a is connected to the inner cylinder 97b via a bearing 98e and a shaft portion 98f. A spring pin 98g is fitted into the shaft portion 98f and the inner cylinder 97b. The gear body 98b is connected to the outer cylinder 97a via a joint 98c. A non-slip rubber 97c at the time of operation is attached to the outer periphery of the outer cylinder 97a over a predetermined range.

  The distal end portion 96 includes a shaft portion 96d having the fourth rotation axis P4-P4 as an axis, and the bearing 98e and the shaft portion 98f are coupled to the inner cylinder 97b. A spring pin 98g is fitted into the shaft portion 98f and the inner cylinder 97b. The tip body 96f is connected to the outer cylinder 97a. A half ring-shaped second hook 96b is disposed on the shaft portion 96d. A hook-shaped third hook 96c is disposed on the tip body 96f. The second hook 96b is provided with a second magnet 96a that adsorbs to the first magnet 22a of the first hook 22b in the device 1 on the axis of the fourth rotation axis P4. According to this configuration, the operator uses the second operation rod 95 with the second hook 96b and the second magnet 96a at the tip to attract the second magnet 96a and the first magnet 22a. It is possible to simply adjust by rotating the second adjustment unit 22 at a position away from the device 1.

  The present invention is not limited to the embodiments described above, and various modifications can be made without departing from the present invention. For example, in the above-described example, the configuration of the second operating rod 95 provided with the torque limiter 98a has been described. However, the configuration is not limited to this configuration. For example, the distal end portion 96 and the torque limiter 98a can be attached to the distal end portion of the existing first operating rod 94 as a detachable attachment. Thereby, all operation of the apparatus 1 can be performed with one operating rod, and the weight of the operating rod can be reduced.

DESCRIPTION OF SYMBOLS 1 Electric wire coating stripping apparatus 2 Frame 3 Connecting part 4 Gear box 5 Main body part 6 Holding part 7 Receiving part 7a First gripping surface 7b Feeding part 8 Slide part 8a Second gripping face 9 Covering stripping part 11 First gear 12 Second Gear 13 third gear 14 collar 21 first adjusting portion 22 second adjusting portion 22a first magnet 22b first hook 23 angle adjusting portion 25 support plate 31 shaft 32 gear 41 shaft 42 gear 43 compression spring 51 first ratchet 52 first 2 Ratchet 52a Operation lever 61 Pressing portion 71 Plate portion 81 Cover stripping blade 81a Cutting edge 82 Joining portion 83 Pressing plate 91 Supporting portion 92 Connection bolt 93 Compression spring 94 First operation rod 95 Second operation rod 96 Tip portion 96a Second magnet 96b 2nd hook 96c 3rd hook 96d Shaft 96e Bearing 97 Cylinder part 97a Outer cylinder 97b Inner cylinder 98 Torque transmission part 9 a torque limiter 98b gear body 98c fitting 98d shaft 98e bearing 98f shaft 99 operation unit E1 lines (bridged electric wires)
E1a Insulation coating E1b End E1c Core wire P1 First rotating shaft P2 Second rotating shaft P3 Third rotating shaft P4 Fourth rotating shaft U1 Notch V1 Storage space

Claims (13)

A frame having an accommodating space for accommodating the installed electric wire, a notch serving as an entrance of the electric wire into the accommodating space, and being rotatable around the electric wire with the first rotation axis as an axis; A first gear built in the frame, a second gear built in the frame and interlocking with the first gear, and a second rotating shaft orthogonal to the first rotating shaft can be connected to the first operating rod as an axis. A main body having a connecting portion disposed on the connecting portion and a gear box that is connected and fixed to the connecting portion and the frame and transmits the rotational force of the first operating rod to the second gear;
A stripping portion connected to the first gear so as to be able to rotate together,
The covering stripping part is disposed so as to be able to contact the electric wire in a state of being accommodated in the accommodating space, and is slidable with respect to the receiving part and grips the outer periphery of the electric wire together with the receiving part. A slide portion that is disposed in a possible manner, and a coating stripping blade disposed in the slide portion,
An electric wire covering stripping device characterized in that the cutting edge of the covering stripping blade is in a position to cut into the insulating coating of the electric wire held by the receiving portion and the slide portion. The main body includes two third gears disposed at positions on both sides of the second gear and meshing with the second gear;
The wire covering stripping device according to claim 1, wherein both or one of the third gears meshes with the first gear. The main body includes a first ratchet that is disposed in the frame and restricts the rotation of the first gear when the rotation direction of the first gear is opposite to the traveling direction of the covering blade. The electric wire coating stripping apparatus according to claim 1 or 2, characterized in that: The main body includes a holding portion that is coupled and fixed to the first gear and rotates along the frame;
The said coating stripping part is attached to the said holding | maintenance part, The electric wire coating stripping apparatus as described in any one of Claims 1-3 characterized by the above-mentioned. The said slide part is provided with the press plate which contact | connects the outer periphery of the said electric wire, and is the structure which adjusts the position which the said blade edge | tip of the said coating stripping blade cuts with the said press plate, The any one of Claims 1-4 characterized by the above-mentioned. Wire covering stripping device according to item. The covering stripping portion includes a first adjusting unit that adjusts the position of the receiving unit by moving the receiving unit in a direction in which the receiving unit is moved toward and away from the first rotation shaft.
The wire covering stripping device according to any one of claims 1 to 5, wherein the first adjusting portion is connected to the receiving portion at a position opposite to the slide portion. The covering stripping portion includes a second adjustment unit that adjusts the position of the slide unit by moving the slide unit in a direction of moving toward and away from the first rotation shaft,
The said 2nd adjustment part is connected with the said slide part in the position on the opposite side to the said receiving part side, The electric wire sheath stripping apparatus of Claim 6 characterized by the above-mentioned. The coating stripping part is disposed in a hollow support part that connects the slide part and the receiving part so as to be able to contact and separate, and a counterbore hole formed in the support part to separate the slide part from the receiving part. 8. A compression spring that biases in a direction, and a connecting bolt that connects the first adjustment portion and the second adjustment portion through the support portion and the compression spring. Wire stripping device. The receiving portion includes a plate portion that slides the slide portion, a second ratchet that regulates when the moving direction of the slide portion is opposite to the direction approaching the receiving portion, and the second portion that is operable from the outside. The wire covering stripping device according to claim 7, further comprising an operation lever connected to the ratchet. The second adjustment unit includes a first hook disposed so as to be able to be engaged with a second operation rod so as to be rotatable about a third rotation axis orthogonal to the first rotation axis.
The second operating rod includes a torque limiter that limits the upper limit of the transmission torque,
The wire sheath stripping device according to any one of claims 7 to 9, wherein a cutting amount into which the cutting edge of the sheath stripping blade is cut by the torque limiter is adjustable. 11. The first hook has a first magnet that is attached to the second magnet at the tip of the second operating rod on the axis of the third rotating shaft. Wire stripping device. The receiving portion is formed with a V-groove-shaped gripping surface capable of contacting the outer periphery of the electric wire,
The feed part which protrudes and is arrange | positioned by the said holding | grip surface at predetermined intervals, and sends out the said insulation coating of the said electric wire to the said blade edge | side side of the said coating stripping blade is provided. The electric wire coating stripping device as described. The covering stripping portion includes a flange portion that stores the insulating coating in a state where the cutting edge of the coating stripping blade is cut and stripped,
The wire covering stripping according to any one of claims 1 to 12, wherein the flange portion is disposed on the slide portion at a position in which an opening is directed to the cutting edge side of the coating stripping blade. apparatus.

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