JPH08265929A - Stripper - Google Patents

Abstract

PURPOSE: To obtain a stripper having high workability. CONSTITUTION: The stripper comprises a stripper body 10 for stripping an insulated wire by turning a cutter 11 around a wire of hot-line, an insulated operating rod for turning the cutter 11 of the stripper body 10, and a coupling member 30 for coupling the insulated operating rod with the stripper body 10 while inclining against the wire and transmitting the rotary power of the operating rod to the cutter 11 of the stripper body 10. Consequently, the insulated wire can be stripped even if the insulated operating rod is not perpendicular to the axis of the wire but inclining, i.e., the insulated operating rod is not set immediately under the wire. Furthermore, the stripper body 10 can be held not to move along the wire without requiring any wire gripper and the stripped insulation coating can be cut off at the root thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating stripping device for stripping a predetermined length of an insulating coating of an overhead distribution line in a live state.

[0002]

2. Description of the Related Art Conventionally, various devices have been proposed for stripping the insulating coating of an overhead distribution line in a live state. For example, in the peeling tool for the middle portion of the electric wire disclosed in Japanese Utility Model Publication No. 6-2414, an insulating operating rod is attached to the peeling tool.
The insulating operating rod is fixed so as to be substantially perpendicular to the axis of the electric wire, and the cutting blade of the peeling tool is rotated around the electric wire by rotating the handle of the insulating operating rod to form the insulating coating. Peel in a spiral. With this peeling tool, when the insulation coating is peeled off for a predetermined length, the wire peeling tool or other fixed object prevents the peeling tool from moving along the wire, and in this state, the cutting blade is placed around the wire at the same location. The peeled insulating coating is cut from the root portion by rotating at.

[0003]

However, in the above-mentioned peeling tool, in order to cut the peeled insulation coating from its root, the work of operating the peeling tool and the operation of the wire gripper are performed. This requires two workers, and this cutting work is performed on a narrow workbench (bucket), which poses a problem of poor workability. Further, since the insulating operation rod is perpendicular to the axis of the electric wire, it has to be positioned directly below the electric wire at the location where the workbench is peeled off, which poses a problem that the working position is limited.

The present invention has been made in view of these points, and the worker 1 can use the tool such as an electric wire gripper without using it.
To provide a live wire coating peeling device which can easily and surely cut an insulating coating peeled off by a person from its root portion, and which does not need to be positioned directly below an electric wire at a portion where a workbench is peeled off. With the goal.

[0005]

In order to achieve the above object, the present invention provides a peeling tool body for peeling the insulating coating of the wire by rotating a cutting blade around the wire, and a peeling tool body. An insulating operating rod for rotating the cutting blade, and the insulating operating rod is connected to the peeling tool body so as to be inclined with respect to the axis of the electric wire, and the rotating force of the insulating operating rod is peeled off. It is characterized by comprising a joint member which is transmitted to the cutting blade.

[0006]

According to the present invention, the insulation operating rod is not inclined at right angles to the axis of the electric wire but is inclined, and in this state, the rotational force is transmitted to the peeling tool main body through the joint member to peel the peeling tool. The cutting blade of the tool body rotates around the wire to peel off the insulation coating. When the insulation coating of a predetermined length has been peeled off, the insulation operating rod can be pulled slightly toward the operator to prevent the peeling tool body from moving along the electric wire. When the insulation operating rod is operated in this state and the cutting blade of the peeling tool body is further rotated, the cutting blade rotates around the wire at the same location, and the peeled insulating coating can be cut from its root. it can.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a front view of a peeling tool main body and a joint member, which is shown with one part omitted and partly cut away, showing one embodiment of the coating stripping apparatus of the present invention. FIG. FIG. 3 is a side view of the peeling tool body and the joint member in FIG. 3, FIG. 3 is a plan view of a transmission piece constituting a pair of transmission members of the joint member, FIG. 4 is a side view of the transmission piece, and FIG. 5 is a cross-sectional view of the transmission piece. 6, FIG. 6 is a side view of the operating rod, FIG. 7 is a partial side view showing the connecting projection provided on the upper end of the operating rod and the lock pin member partially cut away, and FIG. 8 is the coating stripping device shown in FIG. FIG. 3 is an explanatory perspective view for explaining a usage state of the.

The coating stripping apparatus of the present embodiment rotates a cutting blade 11 around an electric wire to peel the insulating coating of the electric wire, and a cutting blade 11 of the peeling tool main body 10. Insulated operating rod 20 (FIG. 6) for operating
And the insulating operating rod 20 can be connected to the peeling tool body 10 while inclining with respect to the axis of the electric wire, and the rotating force of the insulating operating rod 20 can be applied to the cutting blade 11 of the peeling tool body 10. It is composed of a joint member 30 for transmission.
Therefore, the insulation coating of the electric wire can be peeled off by operating the insulating operation rod 20 in a state of being inclined not at right angles to the axis of the electric wire, and thus without using a wire gripper as in the conventional case. It is possible to hold the peeling tool body 10 so as not to move along the electric wire and cut the peeled insulating coating from the root portion thereof.

The peeling tool main body 10 has a holding body 13 for accommodating a gear transmission mechanism 12 to which rotation is transmitted from the insulating operation rod 20 via a joint member 30, and a substantially fixed body on the back side of the holding body 13. The C-shaped metal fitting 14 and the insulating operation rod 20 housed in the holding body 13 and transmitted from the gear transmission mechanism 12.
Pair of semi-circular members 15 rotated by the rotational force of
a and 15b. Semi-circular member 15a, 1
5b are openably and closably connected to each other via an open / close pin 15c to form a circular wire insertion hole 15d.

The gear transmission mechanism 12 includes bevel gears 12a and 12b which are rotated by an insulating operating rod 20, and the bevel gear 12b.
And the rotation of the insulating operating rod 20 is engaged with the semi-circular member 15
It is composed of a spur gear 12c which is transmitted to a and 15b. The spur gear 1 is attached to the pair of semi-circular members 15a and 15b.
Two half gears 16 meshing with 2c are provided respectively, and the rotational driving force is transmitted from the insulating operation rod 20 via the gear transmission mechanism 12. The semicircular members 15a and 15b maintain the closed state of the wire insertion hole 15d when rotated in one direction (clockwise in FIG. 1) by the rotational force of the insulating operation rod 20 transmitted through the gear transmission mechanism 12. While rotating in the same direction while rotating in the other direction (counterclockwise in FIG. 1), the semi-arcuate member 15a rotates about the opening / closing pin 15c as a fulcrum to open the wire insertion hole 15d. There is. The cutting blade 11 is arranged on one semi-circular member 15b side of the pair of semi-circular members 15a and 15b. Cutting blade 11
The semi-circular members 15a and 15b rotate in one direction (see FIG.
When rotated clockwise), it bites into the insulation coating of the electric wire in the electric wire insertion hole 15d, and the semi-arcuate members 15a and 15b.
When the semi-arcuate members 15a and 15b are rotated in the other direction (clockwise rotation in FIG. 1), the insulating coating is spirally peeled along with the rotation of the blade so that the blade does not bite into the insulating coating of the electric wire. The part 11a is formed. In addition, the first hook member 17 is attached to the one semi-circular member 15a through the pin 17a.
Is swingably supported. This first hook member 17
Has one end releasably engaged with an engaging portion 15e provided on the other semi-circular member 15b, and the semi-circular member 15a,
When 15b rotates in one direction, the closed state of the wire insertion hole 15d is maintained. A second hook member 18 is swingably supported by the metal fitting 14 via a pin 18a. The second hook member 18 engages with the other end of the first hook member 17 when the pair of semi-arcuate members 15a and 15b rotate in the other direction to open the wire insertion hole 15d.
The first hook member 17 is disengaged from the engaging portion 15e.

The joint member 30 is a first frame member 31 fixed to the lower end of the holding body 13, and an insulating operation rod 20 rotatably connected to the first frame member 31 via a connecting pin 32.
And the second frame member 33 on the side. Second frame member 3
The rotation restricting member 34 is provided on one outer surface of the connecting pin 3
It is provided at a position deviated from 2 (an appropriate position on the circumference around the connecting pin 32).

The rotation restricting member 34 has an engaging pin 34a which penetrates the second frame member 33 and is detachably inserted into the engaging hole 31a of the first frame member 31, and the engaging pin 34a. Is inserted into the engagement hole 31a, the second frame member 33
Regulates the rotation of the connecting pin 32 with respect to the first frame member 31 as a fulcrum, so that the insulation operating rod 20 can be attached to the peeling tool body 10 at a desired angle, not at right angles to the axis of the electric wire. It is fixed so that it forms an angle of inclination.

Although not shown, the engagement pin 34a is
It is configured to be biased by a spring to engage with the engaging hole 31a and maintain the engaged state. Further, a plurality of engagement holes 31a can be provided. By doing so, the inclination angle of the insulating operation rod 20 with respect to the electric wire can be changed.

The first frame member 31 and the second frame member 33 are a pair of substantially cylindrical transmission members 3 that mesh with each other to transmit the rotation of the insulating operation rod 20 to the gear transmission mechanism 12.
It is equipped with 5a and 35b. One transmission member 35a
Is arranged in the first frame member 31 so as to be rotatable about its central axis, which is orthogonal to the connecting pin 32, and is connected to the bevel gear 12a. In addition, the other transmission member 35b is rotatable about a central axis line thereof which is orthogonal to the connecting pin 32 and is secondly movable.
It is arranged in the frame member 33. A drive shaft 36 having a hexagonal cross section is fixed to the other transmission member 35b for connecting the transmission member 35b to the insulating operation rod 20. On the joint surfaces of the transmission members 35a and 35b that mesh with each other,
As shown in FIGS. 3 to 5, a plurality of approximately hemispherical convex portions 35c and approximately one-quarter spherical concave portions 35d are alternately provided along the periphery thereof. In FIG. 3, six convex portions 35c and concave portions 35c are provided.
The case where six d are provided is shown. Transmission members 35a, 3
Reference numeral 5b is for transmitting the rotation of the insulating operation rod 20 to the gear transmission mechanism 12 through the meshing of the convex portion 35c and the concave portion 35d, and if both joint surfaces are in contact with each other, they are separated from each other. Even if it is (even if some convex portions 35c and concave portions 35d are meshed with each other, even if the other convex portions 35c and concave portions 35d are disengaged from each other), a universal joint for transmitting rotation is formed.

As shown in FIG. 6, the insulated operating rod 20 is fixed to an insulating rod 21, and is supported by the insulating rod 21 via metal fittings 22 and 23, and is rotated by an operating handle 24. And the insulating rod 25 of FIG. And
The upper end of the operating side insulating rod 25 is detachably connected to the end of the joint member 30 (the lower surface side of the second frame member 33).

That is, the lower surface of the second frame member 33 is provided with a connecting portion 40 having a connecting concave portion 41 (see FIGS. 1, 2 and 7) into which the upper end portion of the operating side insulating rod 25 is fitted. There is. A slit 42 is provided on one outer surface of the connecting portion 40, the slit 42 extending in the axial direction, opening at the lower end, and narrowing in width at the intermediate height portion. This slit 42 is the connecting recess 4
Connect within 1. Further, the lower end portion of the drive shaft 36 fixed to the other transmission member 35b projects from the lower end opening surface of the connecting portion 40 (see FIGS. 1 and 2). On the other hand, at the upper end of the operating side insulating rod 25, as shown in FIG.
A connecting convex portion 43 that is detachably fitted to the connecting convex portion 43 is provided. A hole 43a having a hexagonal cross section similar to that of the drive shaft 36 is formed at the upper end of the connecting protrusion 43 so that the lower end of the drive shaft 36 is fitted therein. The drive shaft 36 is fitted into the hole 43a when the plug is fitted into the hole 43a, and the operating side insulating rod 25 is connected to the other transmission member 35b. As shown in FIG. 7, the slit 42 is formed on the outer surface of the connecting convex portion 43.
And a lock pin member 44 for maintaining the fitted (connected) state of the connecting convex portion 43 and the connecting concave portion 41. The lock pin member 44 is inserted into a hollow lock pin 46 having a finger insertion hole 45a at one end and a hollow portion 46a of the lock pin 46 to support the lock pin 46 on the outer surface of the connecting convex portion 43. Headed bolt 47 for
And the lock pin 46 is interposed between the lock pin 46 and the headed bolt 47 in the hollow portion 46a, and the lock pin 46 is slit 4
2 and a spring 48 which is brought into pressure contact with the outer side surface of the connecting portion 40 around the peripheral portion 2. Slit 4 of lock pin 46
The other end on the second side is provided with a step portion 46b so as to match the width of the intermediate height portion of the slit 42 (so that the lock pin 46 can pass through the intermediate height portion of the slit 42). The outer diameter is formed smaller than other parts. Also,
The finger insertion hole 45a is formed by a ring-shaped member 45 fixed to one end opening of the lock pin 46 by means such as screwing. The finger insertion hole 45a facilitates gripping of the lock pin 46 in a work standard when peeling the insulating coating of the electric wire, that is, in a work form in which leather gloves are put over work gloves. The headed bolt 47 is fixed to the outer surface of the connecting convex portion 42 by being screwed into the screw hole 42b of the outer surface of the connecting convex portion 42. For example, it may be fixed by a fixing means such as welding. Good.

Next, a method of using the coating stripping apparatus configured as described above will be described.

First, the peeling tool body 10 is attached to the insulating operation rod 2
Connect to the top of 0. At the time of this connecting work, first, the fingers with leather gloves on the work gloves are inserted into the finger insertion holes 45a of the lock pins 46, and the lock pins 46 are gripped. Separated from the outer surface and with the lock pin 46 aligned with the slit 42,
The connecting convex portion 43 is fitted into the connecting concave portion 41. When the finger is removed from the finger insertion hole 45a at the time of completion of this fitting, the spring force of the spring 48 causes the step 4 of the lock pin 46 to move.
6b is pressed against the outer surface of the connecting portion 40 around the slit 42. This completes the connection between the connecting convex portion 43 and the connecting concave portion 41. At this time, the drive shaft 36 is connected to the connecting convex portion 4
3 into the hole 43a.

Here, when the number of the engaging holes 31a is one, the inclination angle of the insulating operation rod 20 with respect to the electric wire is fixed, but when a plurality of engaging holes 31a are provided, the rotation restricting member. The engaging pin 34a of 34 is once removed from the engaging hole 31a so that the second frame member 33 can freely rotate with respect to the first frame member 31 with the connecting pin 32 as a fulcrum, that is, the insulating operating rod. After allowing 20 to freely rotate with respect to the peeling tool main body 10 by using the connecting pin 32 as a fulcrum, the engaging pin 34a is reinserted into the engaging hole 31a at an appropriate turning angle to move the operating rod 20. If fixed to the peeling tool body 10, the inclination angle of the insulation operating rod 20 with respect to the axis of the electric wire can be changed.

When the peeling tool body 10 is attached to the upper end of the insulating operation rod 20 in this manner, the insulating rod 25 on the operating side of the insulating operation rod 20 extends from the drive shaft 36 to the transmission members 35a, 3a.
The rotation is transmitted to the pair of semi-arcuate members 15a and 15b through the gear 5b, the gear transmission mechanism 12 and the half gear 16. Then, when the operation handle 24 is rotated to rotate the semi-circular members 15a and 15b in the holding body 13 in the counterclockwise direction in FIG. 1, the semi-circular member 15a rotates about the opening / closing pin 15c as a fulcrum. Open the wire insertion hole 15d. Then, the electric wire A in a live state is passed through the electric wire insertion hole 15d (see FIG. 8), and the operation handle 24 is rotated to move the semi-arcuate members 15a and 15b in the holding body 13 in the clockwise direction of FIG. When rotated, the semi-circular member 15a rotates about the opening / closing pin 15c as a fulcrum to close the wire insertion hole 15d. Thereafter, the operation handle 24 is rotated to operate the semi-circular member 1
When 5a and 15b are rotated in the holding body 13 in the clockwise direction of FIG. 1, the peeling tool body 10 moves along the electric wire A while the cutting blade 11 rotates around the electric wire A to spiral the insulation coating B. Peel off (see FIG. 2). At this time, as shown in FIG. 8, even if the worker is not located directly under the electric wire A in the bucket C, the rotational force is transmitted to the peeling tool main body 10 via the joint member 30. Insulation coating B of specified length
When the peeling tool is peeled off, it is possible to prevent the peeling tool body 10 from moving along the electric wire A by slightly pulling the insulating operation rod 20 in a state of being inclined with respect to the axis of the electric wire A toward the operator. That is, when the insulating operation rod 20 is slightly pulled to the operator side, of the pulling force,
The component force in the direction along the electric wire A works in the direction opposite to the moving direction of the peeling tool body 10, and the movement of the peeling tool body 10 can be stopped. When the operating handle 24 of the insulating operating rod 20 is rotated in this state to further rotate the cutting blade 11 of the peeling tool body 10, the cutting blade 11 rotates around the electric wire A at the same location, and the peeled insulation The coating B can be cut from its root. After this, the operation handle 2
When the semi-circular members 15a and 15b are rotated counterclockwise in FIG. 1 in the holder 13 by 4, the wire insertion hole 15d is opened, and the peeling tool body 10 can be removed from the wire A.

The coating stripping apparatus of the present invention is not limited to the above-mentioned embodiment, and is not a separate member such as the first frame member 31 and the second frame member 33, but an integrated member. The insulation operating rod 20 may be fixed to the peeling tool body 10 so as to form a predetermined angle of inclination with respect to the axis of the electric wire. By doing so, the connecting pin 32 and the rotation restricting member 34 can be omitted.

[0023]

As described above, according to the present invention, since the insulation operating rod is attached to the peeling tool body so as to be inclined with respect to the axis of the electric wire, a tool such as an electric wire gripper can be used. Without one worker, the peeled insulation coating can be easily and surely cut from its root, and it has good workability, and the workbench does not have to be positioned directly below the electric wire at the peeling point. The number of movements of the work table accompanying the peeling work can be reduced as compared with the conventional case (when the peeling work is performed with the operating rod substantially perpendicular to the axis of the electric wire).

Further, as a pair of transmission members provided in the joint member, convex portions and concave portions 35d are alternately provided along the periphery of the joint surfaces of the respective transmission members, and the convex portions and the concave portions are rotated to engage with each other. Since the mechanism for transmitting the electric power is used, the angle of inclination of the operation rod with respect to the axis of the electric wire can be made larger than that in the case of using a general universal joint.

Furthermore, the lock pin member can be securely held by the finger insertion hole, and the replacement work of the peeling tool body can be efficiently performed.

[Brief description of drawings]

FIG. 1 is a front view of a stripping tool main body and a joint member, which is partially omitted and partially cut away, showing an embodiment of a coating stripping apparatus of the present invention.

FIG. 2 is a side view of the peeling tool body and the joint member when the wire coating is peeled off.

FIG. 3 is a plan view of a transmission piece that constitutes a pair of transmission members of the joint member.

FIG. 4 is a side view of the transmission piece.

FIG. 5 is a sectional view of the transmission piece.

FIG. 6 is a side view of the operating rod.

FIG. 7 is a partial side view showing a connection protrusion provided on an upper end of an operation rod and a lock pin with a part thereof being cut away.

FIG. 8 is an explanatory perspective view for explaining a usage state of the coating stripping device shown in FIG. 1.

[Explanation of symbols]

 10 Peeling tool main body 11 Cutting blade 12 Gear transmission mechanism 13 Holding bodies 15a, 15b Semi-arcuate member 15d Electric wire insertion hole 20 Insulation operating rod 21 Fixed side insulating rod 25 Operating side insulating rod 30 Joint member 31 First frame member 32 connecting pin 33 second frame member 34 rotation restricting member 34a engaging pin 31a hole 35a, 35b transmission member 35c convex portion 35d concave portion 40 coupling portion 41 coupling concave portion 42 slit 43 coupling convex portion 44 lock pin member 45a finger insertion hole 46 Lock pin 47 Headed bolt 48 Spring

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Taiji Shimizu Inventor Taiji Shimizu 2-3-341 Honjo Higashi Kita-ku Osaka City Osaka Prefecture (72) Inventor Hiro Maeda 4-11 Nishitenma Kita-ku Osaka City Osaka Prefecture No. 29 Inside Daito Denki Co., Ltd.

Claims (3)

[Claims] 1. A peeling tool main body for peeling an insulating coating of an electric wire by rotating a cutting blade around the electric wire, an insulating operation rod for rotating a cutting blade of the peeling tool main body, and the insulation. The operating rod is connected to the peeling tool main body so as to be inclined with respect to the axis of the electric wire, and the operating rod is provided with a joint member for transmitting the rotational force of the insulating operating rod to the cutting blade of the peeling tool main body. Characteristic peeling tool. 2. The coating stripping apparatus according to claim 1, wherein the joint member is fixed to the peeling tool body.
A frame member; a second frame member on the side of the insulating operation rod rotatably connected to the first frame member via a connecting pin;
A rotation restricting member that is provided on one of the second frame members and engages with the other in a disengageable manner to restrict one member from rotating with respect to the other member with the connecting pin as a fulcrum. , The first and second frame members are respectively attached so as to be rotatable about a central axis orthogonal to the connecting pin, and convex portions and concave portions are alternately arranged on the respective joint surfaces facing each other. A coating stripping device comprising: a pair of transmission members for transmitting the rotation of the insulating operation rod to the cutting blade through engagement with the recess. 3. The coating stripping apparatus according to claim 1 or 2, wherein the joint member has an end portion having a connecting recess into which the operating rod is fitted and a slit communicating with the connecting recess. And a connecting projection that is detachably fitted to the connecting recess, the connecting projection has a finger insertion hole at one end, and is fitted into the slit, and the spring is provided. The coating stripping device is provided with a lock pin member that maintains the connected state of the connecting concave portion and the connecting convex portion by being pressed by the outer surface of the connecting portion.