JP7105122B2 - Wire coating stripping device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a wire coating stripping device for stripping an insulation coating of an erected wire.

The overhead wires are laid overhead at a position several meters higher than the ground. When making a branch connection for power distribution, a construction worker uses an insulating operating rod to operate a wire coating stripping device, and strips a predetermined range of insulation coating from an erected wire while the line is live.

Conventionally, a plurality of coating stripping tools corresponding to the outer diameter standard of the erected wire are prepared in advance, and the wire coating is configured to replace the coating stripping tool according to the outer diameter standard and cross-sectional area standard of the erected wire. A stripping device is known (Patent Document 1: JP-A-2009-060753, Patent Document 2: JP-A-2008-136299). In addition, there is known an insulating operating rod (called a drive hook) in which a worker below operates a wire coating stripping device, and the grip portion and the tip portion are insulated (Patent Document 3: Patent Document 3: Japanese Laid-Open Patent Publication No. 2008-253059).

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

There are many cases where the outer diameter of an erection electric wire is known at an outdoor site. For this reason, in the case of a conventional wire coating stripping device, a construction worker unifies a plurality of coating stripping tools (coating stripping parts) and rotary drive tools (main body part) each corresponding to the outer diameter standard of the erected electric wire. Must be carried in a group. On the other hand, the stripping tool must be replaced each time on site, and every time the stripping tool is replaced, the position of the stripping tool must be adjusted according to the outer diameter of the installed electric wire, which requires preparation work. There were problems such as complication. In addition, it is difficult to keep a set of a plurality of coating stripping tools and rotary driving tools together, and there is a problem that, for example, the removed coating stripping tools are left behind at the site when they are replaced.

The present invention has been made in view of the above circumstances, and by expanding the range in which the coating stripping part can grip the erected electric wire, it is possible to strip the wire with a single coating stripping part for a plurality of outer diameter standards of the electric wire. It is an object of the present invention to provide a wire coating stripping device which has a structure capable of being easily positioned according to the outer diameter of the wire.

As one embodiment, the above problem is solved by means of solution as disclosed below.

A wire coating stripping device according to the present invention includes a frame having a housing space for housing a suspended wire, and a notch serving as an entrance for the wire to the housing space, and having a first rotating shaft as an axis. A first gear built in the frame so as to be rotatable around the electric wire, a second gear built in the frame and interlocking the first gear, and a second rotation shaft orthogonal to the first rotation shaft and a gear box connected and fixed to the connecting portion and the frame to transmit the rotational force of the first operating rod to the second gear. and a coating stripping portion coupled to the first gear so as to be able to rotate together, wherein the coating stripping portion is disposed so as to contact the electric wire accommodated in the accommodation space. a receiving portion provided, a sliding portion disposed so as to be slidable with respect to the receiving portion and capable of gripping the outer periphery of the electric wire together with the receiving portion, a coating stripping blade disposed on the sliding portion; and a position where the cutting edge of the coating stripping blade cuts into the insulation coating of the electric wire held by the receiving portion and the sliding portion, and the coating stripping portion moves the receiving portion to the A first adjustment part is provided for adjusting the position of the receiving part by moving it in a direction of contacting and separating from the first rotating shaft, and the first adjustment part is attached to the receiving part at a position on the side opposite to the side of the slide part. wherein the coating stripping portion includes a second adjustment portion that adjusts the position of the slide portion by moving the slide portion in a direction of contacting and separating from the first rotating shaft; The portion is connected to the slide portion at a position opposite to the receiving portion .

According to this configuration, when the slide portion is rotated by a predetermined amount by operating the first operating rod, the slide portion comes to a position below the erection wire, and when the slide portion is pushed up in a direction approaching the receiving portion and slid, the receiving portion is moved. and the slide portion grip the electric wire, and the axial center of the first rotating shaft coincides with the center line of the electric wire, so that a rotatable state is established. Therefore, the outer diameter of the erected electric wire can be adjusted within a range of, for example, several tens of millimeters by one coating stripping portion, and the outer diameter of the erected electric wire can be adjusted by a simple operation of pushing up the sliding portion in a direction approaching the receiving portion and sliding it. Alignment is possible.

According to the present invention, it is possible to perform stripping work with one coating stripping unit for a plurality of outer diameter standards of the erected electric wire, and the electric wire coating has a configuration that allows easy alignment according to the outer diameter of the electric wire. A stripping device is realized.

1 is a schematic perspective view showing an example of a wire coating stripping device according to a first embodiment of the present invention, viewed from the front side; FIG. 1 is a front view of a wire coating stripping device according to a first embodiment; FIG. Fig. 2 is a right side view of the wire coating stripping device according to the first embodiment; It is a rear view of the wire coating stripping device according to the first embodiment. FIG. 2 is a schematic front view showing an example of a main body that constitutes the wire coating stripping device of the first embodiment; FIG. 6 is a cross-sectional view taken along the line VI-VI showing the internal structure of FIG. 5 partially omitted; FIG. 4 is a schematic structural diagram showing an arrangement example of gears in the main body of the first embodiment; FIG. 2 is a schematic front view showing an example of a coating stripping unit that constitutes the wire coating stripping device of the first embodiment; FIG. 9 is a cross-sectional view showing the internal structure of FIG. 8 with partial omission; BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram which shows the example of the usage condition of the wire coating stripping apparatus of 1st Embodiment. FIG. 10 is a schematic perspective view showing an example of a wire coating stripping device according to a second embodiment of the present invention, viewed from the right side. It is a schematic perspective view showing an example of the wire coating stripping device of the second embodiment, and is a view seen from the left side. It is a front view of the wire coating stripping device of the second embodiment. It is a schematic diagram showing an example of the mode of use of the wire coating stripping device of the second embodiment. FIG. 4 is a schematic perspective view showing an example of a coating stripping blade; FIG. 5 is a schematic partial cross-sectional view showing an example of a second operating rod;

This embodiment is a wire coating stripping device 1 for stripping the insulating coating of an erected wire. Hereinafter, it may simply be referred to as "apparatus 1". BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Here, in order to facilitate the explanation of the positional relationship of each part of the apparatus 1, the directions are indicated by arrows of X, Y, and Z in the figure. In addition, in all drawings for describing the embodiments, members having the same functions are denoted by the same reference numerals, and repeated description thereof may be omitted.

[First embodiment]
As shown in FIGS. 1 to 4, the wire coating stripping device 1 of the first embodiment includes a main body 5 having a built-in first gear 11 and a coating connected to the first gear 11 so as to rotate together. and a stripping section 9 . The frame 2 is a housing having an accommodation space V1 that accommodates the laid electric wire E1. The first gear 11 is built in the frame 2 and arranged rotatably around the first rotation axis P1.

5 to 7 are diagrams showing the main body 5 that constitutes the device 1. FIG. The first gear 11 has a through hole 11a larger than the outer diameter of the electric wire E1 formed in the center, and a notch U1 serving as an inlet for the electric wire E1 is formed on the outer diameter side. It is continuous with U1. The first gear 11 is an external gear having a through hole 11a and a notch U1, and has a "C shape" when viewed from the front (see FIG. 7).

In this embodiment, as an example, the body portion 5 includes a holding portion 6 that is connected and fixed to the first gear 11 outside 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” in a front view, and is connected and fixed with the first gear 11 sandwiched therebetween. A holding portion 6 is arranged adjacent to the front side of the frame 2, and the supporting plate 25 and the holding portion 6 are connected and fixed.

As shown in FIG. 6, the body portion 5 includes a connecting portion 3 disposed so as to be connectable to the first operating rod 94 about a second rotating shaft P2 perpendicular to the first rotating shaft P1, and a first operating rod 94. It has a gearbox 4 connected and fixed to the connecting portion 3 and the frame 2 for transmitting the rotational force of the rod 94 to the second gear 12 . In the example of FIG. 6 , the gear 32 and the gear 42 are arranged in the gearbox 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 . Gears 32 and 42 are miter gears. According to this example, the gear 32 and the gear 42 can be the same component. Note that the gear 32 and the gear 42 may be bevel gears without being limited to this example. The first operating rod 94 is an operating rod with a joint, and a conventional product described in Patent Document 3, for example, can be applied.

As shown in FIG. 7, the main body 5 includes a first gear 11, a second gear 12 for interlocking the first gear 11, and a position on both sides of the second gear 12 to mesh with the second gear 12. It has two third gears 13 and these gears 11 , 12 , 13 are built in the frame 2 . Both or one of the third gears 13 are 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 first gear 11, which is an external gear having the through hole 11a and the notch U1 formed therein, by the two third gears. 13 can be reliably transmitted to the first gear 11 via either or both of them. 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 arranged at symmetrical positions with respect to the second rotation axis P2. be. According to this example, the two third gears 13 can be the same component. Note that the present invention is not limited to this example, and the two third gears 13 may be arranged at asymmetrical positions with respect to the second rotation axis P2.

In this embodiment, as an example, the body portion 5 is provided with a first ratchet 51 . The first ratchet 51 is composed of a locking portion 51 a connected and fixed to the support plate 25 and an arm portion 51 b operating within the frame 2 . Here, the rotation direction D<b>1 is the direction in which the first gear 11 rotates forward 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 in the reverse direction. According to this configuration, reverse rotation of the first gear 11 is prevented, so positioning can be easily performed when the body portion 5 is inserted (at the time of approach) to the laid electric wire E1. In addition, the main body 5 can be easily removed from the electric wire E1 when the insulation coating stripping work is finished.

8 and 9 are diagrams showing the coating stripping unit 9 that constitutes the apparatus 1. FIG. The coating stripping portion 9 includes a receiving portion 7 disposed so as to be able to contact the outer periphery of the electric wire E1, a slide portion 8 disposed connected to the receiving portion so as to be able to grip the electric wire E1 together with the receiving portion 7, and a coating stripping blade 81 disposed on the slide portion 8 at a position capable of cutting 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 an arcuate depression in a front view along the outer periphery of the electric wire E1. In addition, 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 electric wire E1 when the body portion 5 rotates during the insulation coating stripping operation. . The slide portion 8 may have a configuration in which convex portions that can bite into the outer circumference of the electric wire E1 are formed on the second gripping surface 8a at predetermined intervals.

In this embodiment, the slide portion 8 is provided with a pressing plate 83 that contacts the outer periphery of the electric wire E1, and the pressing plate 83 adjusts the cutting position of the cutting edge 81a of the coating stripping blade 81. FIG. In the example of FIG. 12, the presser plate 83 is provided at a position corresponding to the cutting edge 81a of the coating stripping blade 81 and at both sides of the coating stripping blade 81 in the lateral direction. 8 is attached and fixed. For example, by attaching a thin pressing plate 83, the protruding margin of the cutting edge 81a of the coating stripping blade 81 can be increased. For example, by attaching a thick pressing plate 83, the protruding margin of the cutting edge 81a of the coating stripping blade 81 can be reduced. According to this configuration, by attaching the pressing plate 83 having a thickness corresponding to the thickness of the coating of the electric wire E1, the protruding margin of the cutting edge 81a of the coating stripping blade 81 can be adjusted. Alternatively, by attaching the pressing plate 83 to the sliding portion 8 so that the height position thereof can be adjusted, the protruding margin of the cutting edge 81a of the coating stripping blade 81 can be similarly adjusted. In this case, the second gripping surface 8a of the slide portion 8 is the surface of the pressing plate 83 that contacts the outer periphery of the electric wire E1.

In this embodiment, the coating stripping unit 9 is provided with a first adjustment unit 21 that adjusts the position of the receiving part 7 by moving the receiving part 7 in the direction of contacting and separating from the first rotation axis P1. The first adjustment portion 21 is connected to the receiving portion 7 at a position opposite to the slide portion 8 side. According to this configuration, the center of rotation of the receiving portion 7 can be precisely aligned with the center line of the electric wire E1.

A dial 21 a is arranged on the front side of the first adjusting portion 21 . As an example, the first adjusting portion 21 has a built-in cam mechanism, and when the dial 21a is adjusted to a predetermined scale, the receiving portion 7 is moved forward or backward with a stroke corresponding to the scale. A locking portion 21b for locking the dial 21a is arranged in the first adjusting portion 21. As shown in FIG. According to this example, the receiving portion 7 can be returned to the origin position by rotating the dial 21a once. In addition, it is not limited to this example, and may be a rack and pinion mechanism, a worm gear mechanism, or other known mechanisms.

In this embodiment, the coating stripping unit 9 includes an angle adjustment unit 23 for adjusting the cutting edge angle of the coating stripping blade 81 , and a dial 23 a is provided on the front side of the slide unit 8 . The coating stripping blade 81 is disposed on the slide portion 8 by the angle adjusting portion 23 so that the cutting edge 81 a cuts into the insulation coating of the electric wire E<b>1 gripped by the receiving portion 7 and the slide portion 8 . As an example, 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 coating stripping blade 81 is adjusted at an angle corresponding to the scale. Here, a lock portion for locking the dial 23a is arranged on the slide portion 8. As shown in FIG. The locking portion can be provided on the dial 23a (not shown). According to this example, the coating stripping blade 81 can be returned to the origin position by rotating the dial 23a once. In addition, it is not limited to this example, and the dial 23a and the coating stripping blade 81 may be directly connected, may be via a gear mechanism, or may be another known mechanism.

The second adjusting portion 22 includes a first hook 22b arranged so as to be rotatable about a third rotation axis P3 perpendicular to the first rotation axis P1 and engageable with the hooked operating rod. The second adjuster 22 is, for example, an eye nut. According to this example, the operator can rotate and adjust the second adjustment section 22 at a position away from the device 1 using the hooked operating rod having the hook at the tip. It should be noted that the second adjuster 22 is not limited to an eye nut, and may be an eye bolt, a simple nut, or any other known tightening mechanism.

In the present embodiment, the second adjustment section 22 is configured to rotate the slide section 8 toward the receiving section 7 by rotating it in the clockwise direction G1 about the third rotation axis P3. According to this example, the connecting bolt 92 can be tightened in the opposite direction to prevent the connecting bolt 92 from loosening.

In this embodiment, the coating stripping portion 9 is provided with a hollow support portion 91 that connects the sliding portion 8 and the receiving portion 7 in a separable manner. Here, the slide portion 8 has a columnar coupling portion 82, and the outer peripheral surface of the columnar support portion 91 abuts against the inner surface 82a of the counterbored hole of the coupling portion 82, thereby separating the slide portion 8 and the receiving portion 7. are detachably connected. The slide portion 8 is slidably disposed along a plate portion 71 provided on the receiving portion 7 .

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

In this embodiment, the coating stripping portion 9 has a second ratchet 52 disposed on the receiving portion 7 at a position opposite to the electric wire E1 side. The second ratchet 52 is configured to regulate when the advancing direction of the slide portion 8 is opposite to the direction in which the slide portion 8 approaches the receiving portion 7 . According to this configuration, in the operation of attaching the device 1, when the electric wire E1 is gripped, the work of bringing the slide portion 8 into contact with the outer circumference of the electric wire E1 can be reliably carried out. In addition, when removing the device 1, the second ratchet 52 can be released by a simple operation of pulling down the operating lever 52a.

In this embodiment, the operation lever 52a is integrally connected to the second ratchet 52, and the plate portion 71 is formed with the slit 71a. Further, the plate portion 71 is provided with a biasing means 52b such as a compression spring that biases the operation lever 52a away from the plate portion 71 . The operating lever 52a projects from the slit 71a at its distal end. 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 body portion 5 includes a holding portion 6 that is connected and fixed so as to rotate together with the first gear 11 outside the frame 2, and the coating stripping portion 9 is Both sides of the first adjusting portion 21 are held by the holding portion 6 , and the coating stripping portion 9 is detachably attached to the holding portion 6 by pulling the pressing portion 61 . According to this configuration, the attachment of the coating stripping portion 9 to the main body portion 5 can be easily performed. In addition, since the coating stripping portion 9 can be easily removed from the main body portion 5, the maintainability is improved. In this configuration, when an electric wire of a standard exceeding the adjustable range of the size for gripping the electric wire E1 is installed by the coating stripping part 9, the adjustable range of the size for gripping the electric wire E1 is separately changed. Part 9 may be prepared and installed. In addition, it is not limited to the case where the coating stripping portion 9 is detachably attached to the holding portion 6 , and the coating stripping portion 9 may be fixed to the holding portion 6 .

FIG. 10 is a schematic diagram showing an example of how the wire coating stripping device 1 according to the first embodiment is used. The operation method of the wire coating stripping device 1 of this embodiment will be described below.

As preparation work, the locking portion 21b is rotated forward to unlock, and the dial 21a of the first adjusting portion 21 is rotated according to the outer diameter standard and cross-sectional area standard of the laid electric wire E1 to position the receiving portion 7. After matching, the lock portion 21b is reversely rotated and locked. Next, the dial 23a of the angle adjusting portion 23 is unlocked, and the dial 23a is rotated according to the outer diameter standard and cross-sectional area standard of the laid electric wire E1 to adjust the cutting edge angle of the coating stripping blade 81, and the angle The dial 23a of the adjusting section 23 is locked. Thus, the preparatory work is completed. According to this example, both the dial 21a and the dial 23a are arranged on the front side of the device 1, so that it is possible to easily adjust according to the outer diameter standard and cross-sectional area standard of the laid electric wire E1 ( See Figure 8).

After the preparatory work, the first operating rod 94 (operating rod with a joint) is connected to the connecting portion 3 of the device 1, and the coating stripping portion 9 is set in a state in which 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 laid 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 portion 9 is rotated halfway in the direction of rotation D1 so that the slide portion 8 is at the lower position and the receiving portion 7 is at the upper position. position. Then, the slide portion 8 is pushed up by the operation rod with the hook to bring it closer to the electric wire E1, and the operation rod with the hook rotates the second adjusting portion 22 to the tightening side of the electric wire E1 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 wire E1 is gripped by the slide portion 8 and the receiving portion 7, the cutting edge 81a is positioned to cut into the insulation coating of the 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 cuts the insulation coating of the electric wire E1 while rotating the coating stripping part 9 in the direction of rotation D1 by one or more turns. to strip off the insulating coating of the electric wire E1.

The insulating coating of the electric wire E1 is stripped off in a predetermined range by the device 1, the slide portion 8 is placed at the lower position and the receiving portion 7 is placed at the upper position by the rotational force of the first operating rod 94, and the hooked operating rod is operated to move the second position. The adjustment part 22 is rotated two or three times toward the loosening side of the electric wire E1, and the slide part 8 is slightly separated from the receiving part 7. Then, the coating stripping part 9 is rotated once in the direction of rotation D1 to remove the insulation coating of the electric wire E1. excision.

After stripping off the insulating coating of the electric wire E1 by the device 1, the second adjustment part 22 is rotated two or three times to the loosening side of the electric wire E1 to separate the slide part 8 from the receiving part 7, and then the operation rod with the hook is operated. The operation lever 52a is pulled downward to release the second ratchet 52, the slide portion 8 is further separated from the receiving portion 7, and the body portion 5 is removed from the laid electric wire E1. Thus, the work of stripping the insulation coating of the electric wire E1 is completed.

According to this embodiment, when the slide portion 8 is rotated by a predetermined amount by operating the first operating rod 94 (operating rod with a joint), the slide portion 8 is positioned below the erection wire E1, and the slide portion moves toward the receiving portion 7. 8 is pushed up and slid so that the electric wire E1 is gripped by the receiving portion 7 and the sliding portion 8 by means of the second adjusting portion 22, and the axis of the first rotation shaft P1 and the center line of the electric wire E1 are aligned. It will be in a rotatable state. Therefore, it is possible to adjust the outer diameter of the erection wire E1 within a range of several tens of millimeters by means of the single coating stripping portion 9, and to push up and slide the slide portion 8 in the direction approaching the receiving portion 7 by means of the operating rod with the hook. Position adjustment according to the outer diameter of the erection electric wire E1 can be performed by operation.

[Second embodiment]
Next, a wire coating stripping device 1 according to a second embodiment of the present invention will be described. In the present embodiment, the basic configuration of the body portion 5 and the coating stripping portion 9, the alignment according to the outer diameter of the electric wire E1, and the rotation of the coating stripping portion 9 in the direction of rotation D1 to the electric wire E1. The basic operation of stripping off the insulation coating is the same as that of the first embodiment.

In the second embodiment, in particular, the receiving portion 7 is formed with a V-shaped first gripping surface 7a capable of coming into contact with the outer periphery of the electric wire E1. It is different from the above-described first embodiment in that it is provided with a feeding portion 7b for feeding the insulation coating E1a of the electric wire E1 toward the cutting edge 81a of the coating stripping blade 81 . In addition, the second embodiment is provided with a cage portion 14 for storing the end portion E1b of the insulating coating E1a that has been cut by the cutting edge 81a of the coating stripping blade 81 and stripped off. It differs from the embodiment. The present embodiment will be described below with a focus on these differences.

As shown in FIGS. 11 to 14, in the wire coating stripping device 1, the first gripping surface 7a of the receiving portion 7 has a V-groove shape (presents a "V shape" when viewed from the front). Feeding portions 7b are arranged at predetermined intervals in the longitudinal direction of the first gripping surface 7a (in the direction along the first rotation axis P1-P1). The plate-shaped feeding portion 7b has a "V shape" corresponding to the V shape of the first gripping surface 7a when viewed from the front. As shown in FIG. 11, the feeding portion 7b is inclined at a predetermined angle with respect to the first rotation axis P1-P1 line so that the back side is closer to the body portion 5 than the front side. When the coating stripping unit 9 rotates in the rotation direction D1, the device 1 advances in the traveling direction Y1, and when it advances, the feeding unit 7b feeds the insulating coating E1a toward the cutting edge 81a of the coating stripping blade 81. there is The feeding portion 7b is a feeding mechanism arranged like the arrangement of the screw portion of a female screw.

In the example of FIG. 11, three feeding units 7b are arranged at predetermined intervals. In addition, this embodiment is not limited to the above configuration, and there are cases in which two or four or more feeding units 7b are provided.

As an example, the main portion of the receiving portion 7 having the first gripping surface 7a is made of aluminum, and the feeding portion 7b is made of hard metal such as steel or stainless steel, or ceramics. In the example of FIG. 11, the receiving portion 7 is formed by combining a plurality of parts, and has a configuration that allows assembly and disassembly. According to this, maintainability such as replacement of the feed portion 7b due to wear or the like is improved. Moreover, the receiving portion 7 is easier to machine than when steel, stainless steel, or the like is machined.

According to the present embodiment, when stripping the insulating coating E1a 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 moves the insulating coating E1a. is sent to the side of the cutting edge 81a, a stable stripping operation can be performed without relying on the skill of the operator.

In this embodiment, a lock portion 21b is provided on the side of the holding portion 6 at a position that can be operated from the outside. In the examples of FIGS. 12 and 13, the locking portion 21b is a cam lever. As a result, it is possible to prevent the dial 21a from becoming loose when the insulation coating is removed. In addition, since the locked state can be seen at a glance from the position of the cam lever, it is possible to prevent forgetting to lock.

As shown in FIGS. 11 to 14, the coating stripping unit 9 in the apparatus 1 includes a cage portion 14 that accommodates the end E1b of the insulating coating E1a that has been stripped off by cutting the cutting edge 81a of the coating stripping blade 81. It has The basket portion 14 is disposed on the slide portion 8 at a position where the opening 14a faces the cutting edge 81a of the coating stripping blade 81, and the collar portion 14b of the basket portion 14 is slid by a fixing member such as a bolt or a screw. Attached to part 8. The basket portion 14 has a cup shape, and in this example, the opening 14a of the basket portion 14 has a larger diameter than the inner bottom portion of the basket portion 14 .

The basket part 14 is made of, for example, a mesh made of metal wire such as steel or stainless steel, a punching metal made of steel plate or stainless steel plate, or a transparent or translucent resin material. As a result, the end portion E1b of the insulating coating E1a housed in the cage portion 14 can be visually recognized from the outside, and the weight of the device 1 can be reduced.

The second adjusting portion 22 includes a first hook 22b that is rotatable about a third rotation axis P3 orthogonal to the first rotation axis P1 and that is engageable with the second operating rod 95. As shown in FIG. The first hook 22b has a half-ring shape, and the first magnet 22a that attracts the second magnet 96a at the tip of the second operating rod 95 is arranged on the axis of the third rotating shaft P3. there is The second adjuster 22 is, for example, an eye nut. According to this example, the operator uses a second operating rod 95 (referred to as a drive hook) with a hook at the tip to rotate the second adjusting section 22 at a position away from the device 1 for adjustment. can do.

As shown in FIG. 14, when stripping the insulating coating E1a of the laid electric wire E1 by a predetermined length, when the body portion 5 and the coating stripping portion 9 are rotated in the rotation direction D1, the cutting edge 81a is attached to the insulating coating E1a. In a state in which the cutting edge 81a is cut, the feeding unit 7b feeds the insulating coating E1a toward the cutting edge 81a, exposing the core E1c of the electric wire E1, while the device 1 advances in the traveling direction Y1, and feeds. The end portion E1b of the insulating coating E1a sent out to the cutting edge 81a side by the portion 7b is accommodated in the cage portion 14. As shown in FIG. The end E1b housed in the basket portion 14 moves along the inner peripheral surface of the basket portion 14 toward the bottom portion of the basket portion 14 while pushing the inner peripheral surface of the basket portion 14 by the elastic force of the stripped insulating coating. .

According to the present embodiment, the stripped end E1b of the insulating coating E1a pushes the inner peripheral surface of the cage portion 14 toward the bottom portion of the cage portion 14 along the inner peripheral surface of the cage portion 14. It is possible to prevent the insulation coating E1a that has been removed from coming off, so that 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 scope of the present invention. For example, in the above-described embodiment, the wire coating stripping device 1 has a configuration in which the holding portion 6 is connected and fixed so as to rotate together with the first gear 11 outside the frame 2, but the configuration is not limited to this. For example, the plate portion of the coating stripping portion 9 can be connected and fixed outside the frame 2 so as to rotate together with the first gear 11 .

(coating stripping blade)
Next, the coating stripping blade 81 will be described. FIG. 15 is a schematic perspective view showing an example of the coating stripping blade 81. As shown in FIG. The coating stripping blade 81 is a type of hard tool and is made of steel, stainless steel, or the like. The coating stripping blade 81 is composed of 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 coating stripping blade 81 is used by being fixed to the slide portion 8 of the device 1 by passing a fixing member such as a bolt through the through hole 81c.

A cutting edge 81a of the coating stripping blade 81 has an external shape that looks like a truncated cone divided in half in the axial direction, and is formed by cutting a counterbore in the axial direction. As a result, while cutting the insulating coating E1a, the stripped insulating coating E1a can be easily sent out from the cutting edge 81a to the rear side of the main body portion 81b.

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

When the torque transmission portion 98 transmits the torque from the operation portion 99 in the axial direction of the fourth rotating shaft P4, a torque limiter 98a that limits the upper limit of the transmission torque is incorporated in the gear body 98b. According to this configuration, since the torque limiter 98a is arranged on the second operating rod 95, even if there is variation in the amount of force applied by the operator, the device can be tightened with a constant tightening force regardless of the operator. 1 can be tightened, it is possible to eliminate variations in the stripped amount of the insulation coating E1a of the electric wire E1 in the thickness direction. That is, the torque limiter 98a provided on the second operating rod 95 can adjust the cutting amount of the cutting edge 81a of the coating stripping blade 81 into the insulation coating E1a.

The operating portion 99 and the outer tube 97a have insulating properties at least in their outer peripheral portions, and are insulated from the tip portion 96. As shown in FIG. The operating portion 99 is connected to the torque limiter 98a via a shaft portion 98f and a 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 between 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 rubber 97c for slip prevention during operation is attached to the outer circumference of the outer cylinder 97a over a predetermined range.

The distal end portion 96 has a shaft portion 96d centered on the fourth rotation axis P4-P4 line, and the bearing 98e and the shaft portion 98f are connected to the inner cylinder 97b. A spring pin 98g is fitted between the shaft portion 98f and the inner cylinder 97b. The tip body 96f is connected to the outer tube 97a. A half-ring-shaped second hook 96b is arranged on the shaft portion 96d. A hook-shaped third hook 96c is arranged on the tip body 96f. The second hook 96b has a second magnet 96a that attracts the first magnet 22a of the first hook 22b in the device 1 on the fourth rotation axis P4. According to this configuration, the operator uses the second operating rod 95 with the second hook 96b and the second magnet 96a attached to the tip to attract the second magnet 96a and the first magnet 22a, Rotating the second adjustment part 22 at a position away from the device 1 allows for easy adjustment.

The present invention is not limited to the embodiments described above, and various modifications can be made without departing from the scope of the present invention. For example, in the above example, the configuration of the second operating rod 95 provided with the torque limiter 98a was described, but the configuration is not limited to this. For example, it is possible to attach the tip portion 96 and the torque limiter 98a to the tip portion of the existing first operating rod 94 as detachable attachments. As a result, all the operations of the device 1 can be performed with one operating rod, and the weight of the operating rod can be reduced.

1 wire coating stripping device 2 frame 3 connecting portion 4 gear box 5 body portion 6 holding portion 7 receiving portion 7a first gripping surface 7b feeding portion 8 sliding portion 8a second gripping surface 9 coating stripping portion 11 first gear 12 second Gear 13 Third gear 14 Cage 21 First adjuster 22 Second adjuster 22a First magnet 22b First hook 23 Angle adjuster 25 Support plate 31 Shaft 32 Gear 41 Shaft 42 Gear 43 Compression spring 51 First ratchet 52 2 Ratchet 52a Operating lever 61 Pressing portion 71 Plate portion 81 Coating stripping blade 81a Cutting edge 82 Joint portion 83 Pressing plate 91 Supporting portion 92 Connecting bolt 93 Compression spring 94 First operating rod 95 Second operating rod 96 Tip 96a Second magnet 96b Second hook 96c Third hook 96d Shaft 96e Bearing 97 Cylindrical portion 97a Outer cylinder 97b Inner cylinder 98 Torque transmission part 98a Torque limiter 98b Gear body 98c Joint 98d Shaft 98e Bearing 98f Shaft 99 Operation part E1 Electric wire (installed electric wire)
E1a Insulating 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 Accommodating space

Claims (11)

A frame having a housing space for housing the laid electric wire, and a notch serving as an entrance for the wire to the housing space are formed, and the frame is rotatable around the wire around a first rotation shaft. A first gear built in a frame, a second gear built in the frame and interlocking the first gear, and a second rotating shaft perpendicular to the first rotating shaft that can be connected to the first operating rod. and a gear box connected and fixed to the connecting portion and the frame to transmit the rotational force of the first operating rod to the second gear;
and a coating stripping portion connected to the first gear so as to be able to rotate together,
The coating stripping portion includes a receiving portion disposed so as to be able to come into contact with the electric wire housed in the housing space, and a receiving portion that is slidable relative to the receiving portion and grips the outer periphery of the electric wire together with the receiving portion. and a coating stripping blade disposed on the sliding portion,
The cutting edge of the coating stripping blade is positioned to cut into the insulation coating of the electric wire held by the receiving portion and the sliding portion. the law of nature,
The coating stripping unit includes a first adjusting unit that adjusts the position of the receiving unit by moving the receiving unit in a direction to contact and separate from the first rotating shaft, and the first adjusting unit is configured to move the sliding unit. is connected to the receiving portion at a position opposite to the side,
The coating stripping unit includes a second adjusting unit that adjusts the position of the sliding unit by moving the sliding unit in a direction to contact and separate from the first rotating shaft, and the second adjusting unit is configured to adjust the position of the receiving unit. connected to the slide at a position opposite to the side thing
A wire coating stripping device characterized by: The coating stripping portion is disposed in a hollow support portion that connects the slide portion and the receiving portion so as to be contactable and detachable, and a countersunk hole formed in the support portion to separate the slide portion from the receiving portion. and a connecting bolt passing through the support portion and the compression spring to connect the first adjusting portion and the second adjusting portion. A wire coating stripping device as described. The receiving portion includes a plate portion that slides the sliding portion, a second ratchet that regulates when the moving direction of the sliding portion is opposite to a direction in which the sliding portion approaches the receiving portion, and the second ratchet that can be operated from the outside. 3. The wire coating stripping device according to claim 1, further comprising an operating lever connected to the ratchet. The second adjusting portion includes a first hook arranged to be rotatable about a third rotating shaft orthogonal to the first rotating shaft and to be engaged with the second operating rod,
The second operating rod has a torque limiter that limits the upper limit of transmission torque,
4. The wire coating stripping device according to claim 1 , wherein the torque limiter is adapted to adjust the cutting depth of the cutting edge of the coating stripping blade. 5. The method according to claim 4 , wherein the first hook is provided with a first magnet on the axis of the third rotating shaft, the second magnet being attracted to the second magnet at the tip of the second operating rod. A wire coating stripping device as described. The main body includes two third gears disposed on both sides of the second gear and meshing with the second gear,
The wire coating stripping device according to any one of claims 1 to 5, wherein both or one of said third gears meshes with said first gear. The main body includes a first ratchet disposed within the frame for restricting rotation of the first gear when the direction of rotation of the first gear is opposite to the advancing direction of the coating stripping blade. The wire coating stripping device according to any one of claims 1 to 6 . the main body portion includes a holding portion that is connected and fixed to the first gear and rotates along the frame;
The wire coating stripping device according to any one of claims 1 to 7, wherein the coating stripping portion is attached to the holding portion. 9. The sliding portion according to any one of claims 1 to 8, characterized in that it comprises a pressing plate that contacts the outer periphery of the electric wire, and the pressing plate adjusts the cutting position of the cutting edge of the sheath stripping blade. The wire coating stripping device according to the item . The receiving portion is formed with a V-shaped gripping surface capable of coming into contact with the outer circumference of the electric wire,
10. The feeding part is provided so as to protrude from the gripping surface at predetermined intervals and feed the insulation coating of the electric wire to the cutting edge side of the coating stripping blade. The wire coating stripping device according to . The coating stripping part includes a basket part that accommodates the insulating coating in a state where the cutting edge of the coating stripping blade is cut and stripped off,
The wire coating stripping according to any one of claims 1 to 10, wherein the basket part is arranged in the slide part at a position where the opening faces the cutting edge side of the coating stripping blade. picking device.

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