JP2021078169A - Attachment and operation rod - Google Patents

Abstract

To provide an attachment capable of setting an electric wire coating removing device at a prescribed angle.SOLUTION: An attachment 70 has a configuration connected to an electric wire coating removing device that comprises: a main body 5 that has a first gear 10a rotatably built-in a frame 2 while setting a first rotational axis P1 as an axial center and a first shaft 31 which can rotate while setting a second rotational axis P2 orthogonal to the first rotational axis P1 as an axial center; and a coating removing part 9 that is coupled to the main body 5 so as to be co-rotated with the first gear 10a while having a bearing part 7, a slide part 8, and a removing blade 81. The attachment has a configuration of having: a universal joint 71, and a second shaft 72 which is coupled with the first shaft 31 via the universal joint 71, and can rotate while setting a third rotational axis P3 crossed with the second rotational axis P2 at a predetermined cross angle as an axial center.SELECTED DRAWING: Figure 15

Description

The present invention relates to an attachment connected to an electric wire coating stripping device for stripping the insulating coating of an erected electric wire, and an operation rod provided with the attachment.

The erection wire is overhead-wired at a position several meters or more higher than the ground. When branching and connecting for power distribution, the construction worker operates the wire coating stripping device using an insulating operating rod to strip the insulation coating of the erected electric wire within a predetermined range in the live wire state.

Conventionally, there is known a method of peeling a coated electric wire in which the insulating coating is cut out in a spiral shape by the stripping blade cutting out the insulating coating and sending the coated electric wire to the inlet side of the electric wire accommodating hole in the stripping portion (patented). Document 1: Japanese Unexamined Patent Publication No. 2008-136328). Further, there is known an insulating operation rod (also referred to as a drive hook) in which a lower operator operates the wire coating stripping device and the grip portion and the tip portion are insulated (Patent Document 2: Special Feature). Kai 2008-253059 (Ab.). Further, there is known an electric wire coating stripping device having a configuration in which a tilting connecting portion that tiltably supports the coating stripping tool mounting portion with respect to the mounting portion (main body) (Patent Document 3: Japanese Patent Application Laid-Open No. 2009-060753). Issue).

Japanese Unexamined Patent Publication No. 2008-136328 Japanese Unexamined Patent Publication No. 2008-253059 Japanese Unexamined Patent Publication No. 2009-060753

Since the position of branch connection for power distribution is some distance from the utility pole, when stripping the insulation coating, the construction worker who climbed the utility pole will have the wire coating stripping device connected to the operation rod at a predetermined angle. It may be easier to work if you do. However, in Patent Documents 1 and 2, there is no description about the range in which the insulating coating can be peeled off. Further, as in Patent Document 3, the structure in which the coating stripping tool mounting portion is tilted with respect to the main body has a structure in which the coating stripping tool mounting portion and the main body are connected only by the tilting connecting portion, so that the coating stripping tool is used. The posture of the mounting portion becomes unstable, and depending on the size and type of the erection wire, it becomes difficult to cut the cutting edge of the peeling blade into the insulating coating. In addition, there is a request from the field whether the wire coating stripping device can be set to a predetermined angle while suppressing new capital investment.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an attachment that can use an existing electric wire coating stripping device and can make the electric wire coating stripping device at a predetermined angle with a simple configuration.

As an embodiment, the problem is solved by a solution means as disclosed below.

The attachment according to the present invention is formed in a frame having a storage space for accommodating an erection electric wire and a notch serving as an entrance to the accommodation space, and is rotatably built in the frame with the first rotation axis as an axis. A main body having a first gear to be formed, a first shaft rotatable about a second rotation axis orthogonal to the first rotation axis, a receiving portion, a slide portion, and a peeling blade, and the first It is configured to be connected to an electric wire coating stripping device having a coating stripping portion connected to the main body so as to rotate together with one gear, and is connected to the universal joint and the first shaft via the universal joint. It is characterized by having a second shaft that can rotate about a third rotation axis that intersects the second rotation axis at a predetermined intersection angle.

According to this configuration, the first shaft of the main body can be rotated by the second shaft that can rotate about the third rotation axis that intersects the second rotation axis at a predetermined angle via the universal joint. Therefore, the range in which the insulating coating can be stripped can be expanded.

According to the present invention, it is possible to realize an attachment capable of setting the wire coating stripping device at a predetermined angle with a simple configuration. Further, an operation rod provided with the attachment can be realized.

FIG. 1 is a schematic perspective view showing an example of an electric wire coating stripping device according to an embodiment of the present invention. FIG. 2 is a front view of the electric wire coating stripping device of FIG. FIG. 3 is a right side view of the electric wire coating stripping device of FIG. FIG. 4 is a rear view of the electric wire coating stripping device of FIG. 5A is a schematic perspective view of the electric wire coating stripping device of FIG. 1 as viewed from different directions, and FIG. 5B is a schematic perspective view of the electric wire coating stripping device as viewed from a different direction from FIG. 5A. FIG. 6 is a schematic front view showing an example of a main body constituting the electric wire coating stripping device of FIG. FIG. 7 is a sectional view taken along line VII-VII showing a part of the internal structure in FIG. FIG. 8 is a schematic structural diagram showing an example of gear arrangement in FIG. FIG. 9 is a schematic front view showing an example of a connection structure between the receiving portion and the slide portion in the coating stripping portion of the electric wire coating stripping device of FIG. FIG. 10 is a cross-sectional view showing the internal structure in FIG. 9 with a part omitted. FIG. 11 is a schematic view showing an example of a usage mode of the electric wire coating stripping device of FIG. FIG. 12 is a schematic perspective view showing an example of a coating stripping portion of the wire coating stripping device of FIG. FIG. 13 is a sectional view taken along line XIII-XIII showing a part of the internal structure in FIG. 12 omitted. 14A is a schematic front view showing another example of the electric wire coating stripping device according to the embodiment of the present invention, and FIG. 14B is a right side view of the electric wire coating stripping device of FIG. 14A. FIG. 15 is a schematic perspective view showing an example of an attachment according to an embodiment of the present invention. 16A is a side view of the attachment of FIG. 15, FIG. 16B is a side view showing an example of a state in which the intersection angle of the attachment of FIG. 16A is changed, and FIG. 16C is a side view in which the internal structure in FIG. 16A is partially omitted. It is sectional drawing which shows. FIG. 17A is a schematic view showing a state in which the attachment of FIG. 15 is connected to the operation rod, and FIG. 17B is a schematic view showing a state in which the electric wire coating stripping device is connected to the attachment of FIG. 17A. FIG. 18A is a schematic view showing an operation rod according to an embodiment of the present invention, and FIG. 18B is a schematic view showing a state in which an electric wire coating stripping device is connected to the operation rod of FIG. 18A. FIG. 19 is a schematic view showing an example of a usage mode of the electric wire coating stripping device and the attachment according to the embodiment of the present invention.

[Electric wire coating stripping device]
As shown in FIGS. 1 to 4 and 5A and 5B, the electric wire coating stripping device 1 of the present embodiment (hereinafter, may be simply referred to as device 1) has a first gear 10a built-in. A main body 5 and a coating stripping portion 9 connected to the main body 5 so as to rotate together with the first gear 10a are provided. The frame 2 is a housing having an accommodation space V1 for accommodating the erection electric wire E1. The first gear 10a is built in the frame 2 and is rotatably arranged with the first rotation shaft P1 as the axis.

6 to 8 are views showing a main body 5 constituting the device 1. The first gear 10a has a through hole formed in the center larger than the outer diameter of the erection electric wire E1, and a notch U1 serving as an inlet of the erection electric wire E1 is formed on the outer diameter side, and penetrates the notch U1. It is continuous with the hole. The first gear 10a is an external gear in which a notch U1 and a through hole are formed, and has a “C shape” when viewed from the front (see FIG. 8). As an example, the main body 5 includes a holding portion 6 which is connected and fixed to the first gear 10a on the outside of the frame 2 and rotates together. Two support plates 25 are rotatably arranged on both sides of the frame 2. The support plate 25 has a “C shape” when viewed from the front, and is connected and fixed by sandwiching the first gear 10a. A holding portion 6 is arranged adjacent to the front side of the frame 2, and the support plate 25 and the holding portion 6 are connected and fixed.

In the example of FIG. 7, the main body 5 is built in a connecting portion 3 arranged so as to be connectable to the first operating rod 94 with the second rotating shaft P2 orthogonal to the first rotating shaft P1 as the axis, and the connecting portion 3. It has a first shaft, and a gear box 4 which is connected and fixed to a connecting portion 3 and a frame 2 in order to transmit the rotational force of the first operating rod 94 to the second gear 10b. The gear 32 and the gear 42 are arranged in the gear box 4. The gear 32 is connected and fixed to the first shaft 31 and meshes with the gear 42. Both the gear 42 and the second gear 10b 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 the same component. Not limited to this example, the gear 32 and the gear 42 may be bevel gears. The first operating rod 94 is, for example, an operating rod with a joint. Known techniques such as Patent Document 2 described above can be applied to the first operating rod 94.

In the example of FIG. 8, the main body 5 is arranged at positions on both sides of the first gear 10a, the second gear 10b for interlocking the first gear 10a, and the second gear 10b, and meshes with the second gear 10b. A third gear 10c is provided, and these gears 10a, 10b, and 10c are each built in the frame 2. Then, both or one of the two third gears 10c is configured to mesh with the first gear 10a. According to this configuration, with respect to the first gear 10a of the external gear in which the notch U1 and the through hole are formed, the rotational force transmitted from the first operating rod 94 to the second gear 10b is applied to the two third gears 10c. Either one or the other can be reliably transmitted to the first gear 10a via both. Here, the axes of the second gear 10b are orthogonal to the line of the second rotation axis P2, and the two third gears 10c are arranged at positions symmetrical with respect to the second rotation axis P2. According to this example, the two third gears 10c can be the same component. Not limited to this example, the two third gears 10c may be arranged at positions asymmetric with respect to the second rotation axis P2.

The main body 5 is provided with a first ratchet 51 as an example. The first ratchet 51 includes a locking portion 51a connected and fixed to the support plate 25, and an arm portion 51b that operates in the frame 2. Here, the rotation direction D1 is the direction in which the first gear 10a rotates in the forward direction, and coincides with the traveling direction of the stripping blade 81. When the first shaft 31 is rotated in the rotation direction C1 by the first operating rod 94, the first gear 10a rotates in the rotation direction D1. As an example, the first shaft 31 is connected to the first operating rod 94 and rotates. The first ratchet 51 does not interfere with the rotation of the first gear 10a when the first gear 10a rotates in the forward direction. On the other hand, the first ratchet 51 is configured to regulate the reverse rotation of the first gear 10a when the first gear 10a rotates in the reverse direction. According to this configuration, the reverse rotation of the first gear 10a can be prevented, so that the positioning can be easily performed when the main body 5 is inserted into the erection electric wire E1 (at the time of approach). Moreover, at the end of the insulating coating stripping work, the main body 5 can be easily removed from the erection electric wire E1.

9 and 10 are schematic views showing an example of a connection structure between the receiving portion 7 and the slide portion 8 in the coating stripping portion 9 constituting the device 1. The coating stripping portion 9 is a receiving portion 7 arranged so as to be in contact with the outer periphery of the erection electric wire E1, and a slide portion 8 arranged by connecting the erection electric wire E1 together with the receiving portion 7 to the receiving portion 7 so as to be gripped. And a stripping blade 81 arranged on the slide portion 8 at a position where it can be cut into the insulating coating E1a of the erection electric wire E1. In the example of FIG. 9, the first gripping surface 7a of the receiving portion 7 is formed with an arc-shaped recess in a front view so as to be along the outer circumference of the erection electric wire E1. Further, the second gripping surface 8a of the slide portion 8 is subjected to surface treatment such as nitriding treatment to reduce the frictional force with the erection electric wire E1 when the main body 5 is rotated in the insulating coating stripping work. As an example, the slide portion 8 is provided with a pressing plate 83 in contact with the outer circumference of the erection electric wire E1, and the pressing plate 83 adjusts the cutting position of the cutting edge 81a of the peeling blade 81. The slide portion 8 is not limited to the above configuration, and the slide portion 8 may have a configuration in which convex portions capable of biting into the outer periphery of the erection electric wire E1 are formed on the second gripping surface 8a at predetermined intervals.

As an example, the coating stripping portion 9 includes a first adjusting portion 21 that adjusts the position of the receiving portion 7 by moving the receiving portion 7 in a direction in which the receiving portion 7 is brought into contact with and separated from the first rotating shaft P1. The first adjusting portion 21 is connected to the receiving portion 7 at a position opposite to the side of the slide portion 8. According to this configuration, the center of rotation of the receiving portion 7 can be accurately aligned with the center line of the erection electric wire E1. A dial 21a is arranged on the front side of the first adjusting unit 21. Here, the first adjusting unit 21 has a built-in cam mechanism, and when the dial 21a is adjusted to a predetermined scale, the receiving unit 7 is advanced or retracted with a stroke corresponding to the scale. Further, the first adjusting portion 21 is provided with a locking portion 21b that locks the dial 21a. According to this example, the receiving portion 7 can be returned to the origin position by rotating the dial 21a once. In addition, the present invention is not limited to this example, and may be a rack and pinion mechanism, a worm gear mechanism, or other known mechanism.

The peeling blade 81 is a kind of hard tool, and is made of a steel material, a stainless steel material, or the like. As an example, the peeling blade 81 is used by passing a fixing member such as a bolt through the through hole 81c and fixing it to the slide portion 8 of the device 1. As an example, the cutting edge 81a of the peeling blade 81 has an external shape such that the truncated cone shape is divided in half in the axial direction, and is formed by engraving a counterbore in the axial direction.

As an example, the coating stripping portion 9 includes a cutting edge angle adjusting portion 23 for adjusting the cutting edge angle of the stripping blade 81, and a dial 23a is arranged on the front side of the slide portion 8. The stripping blade 81 is arranged on the slide portion 8 by the cutting edge angle adjusting portion 23 so that the cutting edge 81a cuts into the insulating coating E1a of the erection electric wire E1 gripped by the receiving portion 7 and the slide portion 8. Here, a cam mechanism is built in the slide portion 8, and when the dial 23a is adjusted to a predetermined scale, the cutting edge angle of the peeling blade 81 is adjusted at an angle corresponding to the scale. Here, a lock portion for locking the dial 23a is provided on the slide portion 8. The lock portion can be provided on the dial 23a (not shown). According to this example, the peeling blade 81 can be returned to the origin position by rotating the dial 23a once. Not limited to this example, the dial 23a and the peeling blade 81 may be directly connected or may be via a gear mechanism, and other known mechanisms can be applied.

As an example, the second adjusting portion 22 is an eye nut, and as shown in FIG. 10, the second adjusting portion 22 is rotated clockwise with the fifth rotating shaft P5 as the axis in the G1 direction so that the slide portion 8 approaches the receiving portion 7. Is. According to this example, the connecting bolt 92 can be prevented from loosening by setting the tightening direction in the opposite direction to the connecting bolt 92. As an example, the coating stripping portion 9 is provided with a hollow support portion 91 that connects the slide portion 8 and the receiving portion 7 so as to be in contact with each other. Here, the slide portion 8 has a cylindrical joint portion 82, and the outer peripheral surface of the columnar support portion 91 comes into contact with the inner side surface 82a of the counterbore hole of the joint portion 82 to form the slide portion 8 and the receiving portion 7. Are connected so that they can be connected and detached. Then, the slide portion 8 is slidably arranged along the plate portion provided on the receiving portion 7. The connecting bolt 92 connects the first adjusting portion 21 and the second adjusting portion 22 by inserting the support portion 91 and the compression spring 93. A trapezoidal screw is formed on the connecting bolt 92. The compression spring 93 is arranged in the counterbore hole 91a formed in the support portion 91 and urges the slide portion 8 in the direction away from the receiving portion 7. According to this configuration, in the work of attaching the device 1 to the erection electric wire E1, it is possible to prevent the peeling blade 81 from coming into contact with the erection electric wire E1 when the main body 5 is inserted into the erection electric wire E1 (at the time of approach). Moreover, it is possible to prevent the stripping blade 81 from coming into contact with the erection electric wire E1 when the main body 5 is removed from the erection electric wire E1 at the end of the insulation coating stripping work.

As an example of the stripping portion 9, a second ratchet 52 is arranged on the receiving portion 7 at a position opposite to the side of the erection electric wire E1. The second ratchet 52 is configured to regulate when the traveling direction of the slide portion 8 is opposite to the direction approaching the receiving portion 7. According to this configuration, in the mounting work of the device 1, when gripping the erection electric wire E1, the work of bringing the slide portion 8 into contact with the outer circumference of the erection electric wire E1 can be easily performed. Further, in the removal work of the device 1, since the second ratchet 52 can be released by a simple operation of pulling down the operation lever 52a, the work of separating the slide portion 8 from the outer periphery of the erection electric wire E1 can be quickly performed. As an example, the operation lever 52a is integrally connected to the second ratchet 52, and a slit 71a is formed in the plate portion. Further, an urging means 52b such as a compression spring that urges the operating lever 52a in a direction away from the plate portion is arranged on the plate portion. The tip side of the operating lever 52a protrudes from the slit. According to this configuration, the second ratchet 52 can be easily operated from the outside by the operation lever 52a.

Here, the main body 5 is provided with a holding portion 6 which is connected and fixed so as to be able to rotate together with the first gear 10a on the outside of the frame 2, and the coating stripping portion 9 is held by both sides of the first adjusting portion 21. The structure is such that it is held by the portion 6, and the coating stripping portion 9 is detachably attached to the holding portion 6. According to this configuration, the coating stripping portion 9 can be easily attached to the main body 5. Moreover, since the coating stripping portion 9 can be easily removed from the main body 5, maintainability is improved. Not limited to this example, the stripped portion 9 may be fixed to the holding portion 6, and the stripped portion 9 may be fixed to the first gear 10a.

FIG. 11 is a schematic view showing an example of the usage mode of the electric wire coating stripping device 1 according to the present embodiment, FIG. 12 is a schematic perspective view showing an example of the coating stripping portion 9, and FIG. 13 is a diagram. 12 is a cross-sectional view showing the internal structure of No. 12 with a part omitted. As shown in FIGS. 11 to 13, the slide portion 8 has a first guide portion 11 along which the coating waste E1d peeled off from the insulating coating E1a is placed, and the inlet 11a of the first guide portion 11 is the first rotation shaft. It is arranged at a position outside the cutting edge 81a of the peeling blade 81 with respect to P1. With this configuration, the coating debris E1d cut out from the insulating coating E1a by the stripping blade 81 is pushed toward the first guide portion 11 arranged on the slide portion 8 and sent out along the inner wall of the first guide portion 11. Therefore, the coating waste E1d is locked to the first guide portion 11 and can be prevented from falling. In this example, the coating waste E1d has a predetermined length and is contained at a position between the first guide portion 11 and the peeling blade 81, and does not fall. As an example, the first guide portion 11 is made of aluminum, iron, other lightweight metal, or engineering plastic.

Further, as shown in FIGS. 11 to 13, FIGS. 1 to 4, and 5A and 5B, the slide portion 8 has a second guide portion 12 for hooking the coating waste E1d. The second guide portion 12 is provided with an eaves portion 13 inclined in a direction covering a part of the outlet 11b of the first guide portion 11. According to this configuration, when the tip portion E1b of the covering waste E1d to be sent out exits the outlet 11b of the first guide portion 11, its traveling direction changes so as to approach the first rotation axis P1, so that the first guide portion 11 The coating waste E1d at the outlet 11b of the above can be locked to the eaves portion 13 to prevent the coating waste E1d from falling.

The eaves portion 13 has a plurality of locking portions extending in different directions, and here, the first locking portion 14a, the second locking portion 14b, and the third locking portion 14c are respectively. It is arranged. The first locking portion 14a has a bent shape that extends from the eaves portion 13 and is further inclined in a direction that covers a part of the outlet 11b of the first guide portion 11. The second locking portion 14b extends from the eaves portion 13 and has a bent shape further inclined so as to approach the main body 5. The third locking portion 14c has a bent shape that extends from the eaves portion 13 and is further inclined so as to be separated from the main body 5. The direction in which the coating waste E1d spirally sent out from the outlet 11b of the first guide portion 11 is not determined. According to this configuration, even if the direction in which the coating waste E1d is sent out is not determined, any one of the first locking portion 14a, the second locking portion 14b, and the third locking portion 14c extending in different directions. Since it is locked above, it can be prevented from falling. In addition, as a configuration other than the above, a configuration in which the first locking portion 14a and the second locking portion 14b or the third locking portion 14c are arranged, or the second locking portion 14b and the third locking portion are arranged. In some cases, 14c is arranged. As an example, the eaves portion 13 is made of aluminum, iron, other lightweight metal, or engineering plastic, is processed by sheet metal processing, and is connected and fixed to the first guide portion 11 by a fixing means such as a screw. As a configuration other than the above, the first guide portion 11 and the eaves portion 13 may be integrated into an integral structure.

Subsequently, the operation method of the electric wire coating stripping device 1 of the present embodiment will be described below.

As a preparatory work, the dial of the first adjusting portion 21 is rotated according to the outer diameter standard and the cross-sectional area standard of the erection electric wire E1 to align the receiving portion 7. Next, the cutting edge angle of the peeling blade 81 is adjusted by rotating the dial of the cutting edge angle adjusting unit 23 according to the outer diameter standard and the cross-sectional area standard of the erection electric wire E1. After the preparatory work, the first operating rod 94 with a joint is connected to the connecting portion 3 of the device 1, and the frame 2 of the main body 5 is inserted into the erection electric wire E1. Next, the rotational force of the first operating rod 94 is transmitted to the first gear 10a, the coating stripping portion 9 is rotated half a turn in the rotation direction D1, the slide portion 8 is in the lower position, and the receiving portion 7 is in the upper position. It is in the state of position. Then, the slide portion 8 is pushed up by the operation rod with a hook to be brought close to the erection electric wire E1, and the second adjusting portion 22 is rotated to the tightening side of the erection electric wire E1 by the operation rod with a hook to the slide portion 8 to the receiving portion 7. Further bring them closer and tighten the slide portion 8 and the receiving portion 7 until the erection electric wire E1 is gripped. Here, when the erection electric wire E1 is gripped by the slide portion 8 and the receiving portion 7, the cutting edge 81a is cut into the insulating coating E1a. Then, the rotational force of the first operating rod 94 is transmitted to the first gear 10a, and the stripping blade 81 makes a cut in the insulating coating E1a of the erection electric wire E1 while rotating the coating stripping portion 9 in the rotation direction D1 or more. When rotated, the cutting edge 81a is cut into the insulating coating E1a, and the cutting edge 81a is in a state where the cutting edge 81a is cut. Peel off the coating E1a (see FIG. 11).

Then, the coating waste E1d cut out from the insulating coating E1a by the stripping blade 81 is sent out along the inner wall of the first guide portion 11 while being pushed toward the first guide portion 11 arranged on the slide portion 8, and is sent out. When the tip E1b of the coating waste E1d exits the outlet 11b of the first guide portion 11, the traveling direction changes so as to approach the first rotation axis P1. Therefore, the coating waste E1d at the outlet 11b of the first guide portion 11 has a coating waste E1d. It is locked to the eaves 13 (see FIG. 13). Further, the covering debris E1d spirally sent out from the outlet 11b of the first guide portion 11 has the first locking portion 14a and the second locking portion 14b extending in different directions even if the sending direction is not determined. And any one or more of the third locking portions 14c.

Then, the insulating coating E1a of the erection electric wire E1 is peeled off in a predetermined range by the device 1, and the slide 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 operation with a hook is performed. The second adjusting portion 22 is rotated 2-3 times toward the loosening side of the erection electric wire E1 by a rod, and the slide portion 8 is slightly separated from the receiving portion 7, and the coating stripping portion 9 is rotated once in the rotation direction D1. The coating debris E1d is cut from the insulating coating E1a of the erection electric wire E1. After that, the second adjusting portion 22 is rotated 2-3 times to the loosening side of the erection electric wire E1 so that the slide portion 8 is separated from the receiving portion 7, and the operating lever 52a is pulled downward by the operating rod with a hook to make the second ratchet. The 52 is released, the slide portion 8 is further separated from the receiving portion 7, and the main body 5 is removed from the erection electric wire E1. In this way, the work of stripping the insulating coating of the erection electric wire E1 is completed. When the work is completed, the coated debris E1d that has been peeled off and cut off is removed from the erection electric wire E1 together with the device 1 in a state of being locked to the first guide portion 11 and the second guide portion 12.

Subsequently, another example of the electric wire coating stripping device 1 will be described. 14A is a schematic front view showing another example of the electric wire coating stripping device 1, and FIG. 14B is a right side view of the device 1 of FIG. 14A. The receiving portion 7 and the slide portion 8 are tightened with upper and lower screws to grip the erection electric wire E1. Here, the gear configuration and the basic operation of peeling off the insulating coating E1a of the erection electric wire E1 are the same as those in the above-described embodiment. The peeled coating debris E1d is sent out along the inner wall of the stripping blade 81 and the first guide portion 11, and when exiting the outlet 11b of the first guide portion 11, the second guide portion 12 makes the peeled coating waste E1d into the first rotating shaft P1. The direction of travel changes as it approaches. As a result, the coating waste E1d that has been peeled off and cut off is in a state of being locked to the first guide portion 11 and the second guide portion 12.

[attachment]
Next, an attachment 70 capable of setting the wire coating stripping device 1 at a predetermined angle will be described. As shown in FIG. 19, since the position of branch connection for power distribution in the erection electric wire E1 is separated from the utility pole T1 to some extent, the construction worker M1 who climbs the utility pole T1 when stripping the insulating coating E1a is the first. 1 It may be easier to work if the electric wire coating stripping device 1 connected to the operation rod 94 has a predetermined angle. Therefore, the attachment 70 is connected to the first operation rod 94, and the electric wire coating stripping device 1 is connected to the attachment 70 for use.

15 is a schematic perspective view showing an example of the attachment 70 according to the embodiment of the present invention, FIG. 16A is a side view of the attachment 70, and FIG. 16B is an example of a state in which the intersection angle K1 of the attachment 70 is changed. 16C is a cross-sectional view showing a part of the internal structure omitted. The attachment 70 of the present embodiment has a first gear 10a rotatably built in the frame 2 about the first rotation axis P1 as an axis, and a second rotation axis P2 orthogonal to the first rotation axis P1 as an axis. A main body 5 having a rotatable first shaft 31, a coating stripping portion 9 having a receiving portion 7, a slide portion 8 and a stripping blade 81, and being connected to the main body 5 so as to rotate together with the first gear 10a. The stripping blade 81 is used in the wire coating stripping device 1 having a configuration in which the stripping blade 81 is arranged at a position to cut into the insulating coating E1a of the erection wire E1 in a state of being gripped by the receiving portion 7 and the slide portion 8. Alternatively, the attachment 70 of the present embodiment is used in an existing electric wire coating stripping device.

As an example, the attachment 70 of the present embodiment has a configuration in which it is connected to the above-mentioned electric wire coating stripping device 1. Further, as an example, the attachment 70 may be connected to an existing electric wire coating stripping device. The attachment 70 is rotatable about a third rotating shaft P3 that is connected to the universal joint 71 via the universal joint 71 and intersects the second rotating shaft P2 at a predetermined intersection angle K1. It is configured to have a second shaft 72 and the like. According to this configuration, the first shaft 31 in the device 1 can be rotated by the second shaft 72 that can rotate about the third rotation shaft P3 that intersects the second rotation shaft P2 at a predetermined intersection angle K1. Therefore, the range in which the insulating coating E1a can be peeled off can be expanded. The intersection angle K1 may be configured to have a predetermined constant angle, or may be configured so that the angle can be adjusted.

In the example of FIGS. 16A to 16C, the attachment 70 is connected to the side opposite to the connection side with the second shaft 72 in the universal joint 71, and the third shaft 73 is rotatable about the second rotation shaft P2 as an axis. And an intersection angle adjusting unit 74 capable of adjusting the intersection angle K1. With this configuration, the rotational force of the first operating rod 94 can be efficiently transmitted to the device 1, and the crossing angle K1 suitable for on-site work can be quickly adjusted. As an example, the crossing angle is set to 5 degrees or more and 45 degrees or less. As a result, as shown in FIG. 19, the intersection angle range is set so that the construction worker M1 can easily operate it. That is, by setting the intersection angle K1 to 5 degrees or more, the range in which the insulating coating E1a is peeled off can be effectively expanded. Further, by setting the intersection angle K1 to 45 degrees or less, the range in which the insulating coating E1a is peeled off can be adjusted within a range that is easy to operate. The intersection angle adjusting portion 74 is, for example, a sheet metal-processed guide member, and through holes 74a in which the intersection angle K1 can be adjusted stepwise are formed on both sides, and the first knob 79a is pulled out to pull out the through hole 74a. The first knob 79a is returned and positioned by adjusting the crossing angle adjustment position of. The crossing angle K1 is adjusted to 5 [degrees], 10 [degrees], 20 [degrees], 30 [degrees], or 45 [degrees] as an example. As an example, the crossing angle K1 may be adjusted in 5 [degrees] steps, as an example, the crossing angle K1 may be adjusted in 10 [degrees] steps, or as an example, the crossing angle K1 may be adjusted to an arbitrary angle. It is also possible to make fine adjustments.

The second shaft 72 has a first bearing 75a arranged on the connection side with the universal joint 71, and the third shaft 73 has a second bearing 75b arranged on the connection side with the universal joint 71. According to this configuration, it is possible to prevent shaft shake between the second shaft and the third shaft 73, so that the rotational force of the first operating rod 94 is transmitted to the second shaft 72 of the first joint 76a and is transmitted from the second shaft 72. The rotational force of the third shaft 73 is transmitted to the third shaft 73, and the rotational force of the third shaft 73 is smoothly transmitted to the first shaft 31 via the socket 78 of the second joint 76b. The second joint 76b and the connecting portion 3 are connected by pulling out the second knob 79b and returning it. The first bearing 75a and the second bearing 75b are deep groove ball bearings as an example. The universal joint 71, for example, has a bellows shape and is covered with a rubber or resin cover 77, which can prevent water droplets, debris, and the like from entering.

In the example of FIG. 17A, the attachment 70 is connected to the first operating rod 94, and the second shaft 72 is rotated by rotating the operating portion 99. Then, in the example of FIG. 17B, the electric wire coating stripping device 1 is connected to the attachment 70, and the first shaft 31 is rotated by rotating the third shaft 73. According to this configuration, the electric wire coating stripping device 1 can be set to a predetermined intersection angle K1 with a simple configuration. The attachment 70 may be used by being connected to an existing electric wire coating stripping device.

Further, as shown in FIG. 18A, the second operation rod 95 provided with the attachment 70 may be used. In this case, the first joint 76a can be omitted. Then, as shown in FIG. 18B, the electric wire coating stripping device 1 is connected to the attachment 70 of the second operating rod 95, and the first shaft 31 is rotated by rotating the third shaft 73. .. According to the present embodiment, it is possible to realize a second operation rod 95 provided with an attachment 70 capable of making the electric wire coating stripping device 1 at a predetermined angle with a simple configuration. As a configuration other than the above, the universal joint 71 is rotated around the third rotation axis P3 which is connected to the first shaft 31 via the universal joint 71 and intersects the second rotation axis P2 at a predetermined intersection angle K1. The electric wire coating stripping device 1 may be provided with an attachment 70 having a movable second shaft 72. In this case, since the second joint 76b can be omitted, the overall component cost can be reduced. According to the attachment 70, the second operating rod 95, and the electric wire coating stripping device 1 of the above-described embodiment, the predetermined intersection angle K1 can be obtained with a simple configuration. The present invention is not limited to the examples described above, and various modifications can be made without departing from the present invention.

1 Wire coating stripping device (device)
2 Frame 3 Connecting part 4 Gear box 5 Main body 6 Holding part 7 Receiving part, 7a 1st gripping surface, 7b Feeding part 8 Sliding part, 8a 2nd gripping surface 9 Stripping part 10a 1st gear, 10b 2nd gear, 10c 3rd gear 11 1st guide part, 11a inlet, 11b outlet 12 2nd guide part 13 Bearing part 14a 1st locking part, 14b 2nd locking part, 14c 3rd locking part 21 1st adjusting part 22 2nd Adjusting part 23 Cutting edge angle adjusting part 25 Support plate 31 1st shaft 43 Compression spring 51 1st ratchet 52 2nd ratchet 70 Attachment 71 Universal joint 72 2nd shaft 73 3rd shaft 74 Crossing angle adjusting part, 74a Through hole 75a 1st Bearing, 75b 2nd bearing 76a 1st joint, 76b 2nd joint 77 Cover 78 Socket 79a 1st knob, 79b 2nd knob 81 Peeling blade 81a Cutting edge 82 Joint part 83 Holding plate 91 Support part 92 Connecting bolt 93 Compression spring 94 No. 1 Operation rod 95 2nd operation rod 96 Tip part 97 Tube part 99 Operation part E1 Bearing wire E1a Insulation coating E1b Tip part E1c Core wire E1d Coating scrap P1 1st rotation axis P2 2nd rotation axis P3 3rd rotation axis U1 Notch V1 Containment space

Claims (6)

A frame having an accommodating space for accommodating an erection electric wire, a first gear incorporated in the frame so as to be rotatable around a first rotating shaft as well as a notch forming an entrance to the accommodating space, It has a main body having a first shaft that can rotate about a second rotation axis orthogonal to the first rotation axis, a receiving portion, a slide portion, and a peeling blade, and can rotate together with the first gear. It is configured to be connected to an electric wire coating stripping device provided with a coating stripping portion connected to the main body.
It has a universal joint and a second shaft that is connected to the first shaft via the universal joint and is rotatable about a third rotating shaft that intersects the second rotating shaft at a predetermined crossing angle. An attachment that features that. The attachment according to claim 1, wherein the crossing angle is set to 5 degrees or more and 45 degrees or less. A third shaft that is connected to the side opposite to the connection side with the second shaft in the universal joint and can rotate around the second rotation axis, and an intersection angle adjusting unit that can adjust the intersection angle. The attachment according to claim 1 or 2, wherein the attachment is characterized by having. The second shaft has a first bearing arranged on a connection side with the universal joint, and the third shaft has a second bearing arranged on a connection side with the universal joint. Item 3. Attachment. The attachment according to any one of claims 1 to 4, wherein the second shaft is connected to an operating rod and rotates. An operation rod provided with the attachment according to any one of claims 1 to 4.

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