JPH079550Y2 - Stripping tool for coated wire - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) This invention is to be attached to the body of a peeling brush tool in a peeling brush work using an indirect live-wiring tool such as a hot stick in a live line work of a distribution line or the like. The present invention relates to a wire stripping tool to be used.

(Prior Art) When connecting a wire connecting sleeve or a connector for branching an electric wire such as a distribution line, the coating of the electric wire is peeled off to expose the wires. When performing the stripping work of this wire coating during live wire, set the cylindrical roller in the stripping brush tool body attached to the tip of the hydraulic rotary stick, which is one of the indirect live wire tools, A cutter blade is provided on this roller, an electric wire is inserted into this roller, and the center shaft of the hydraulic rotary stick is rotationally driven to rotate the roller. As a result, the cutter blade rotates while pressingly contacting the outer circumference of the electric wire to scrape off the outer peripheral coating of the electric wire. Then, when the peeling brush tool is moved along the electric wire in this state, the coating of the electric wire is peeled off for a certain length, and the bare wire is exposed.

(Problems to be solved by the invention) However, in the conventional peeling tool, when the coating of the finned wire such as the SN wire is stripped in a spiral shape, the feeding in the longitudinal direction of the wire is not stable and stable. I couldn't peel it.

Therefore, the present invention solves the above-mentioned problems by providing a wire stripping tool that can cope with finned wires such as SN wires and that reliably and stably easily strips the wire coating in a spiral shape. Is.

(Means for Solving the Problem) This invention is such that an electric wire receiver and a cutter blade are made to protrude from one end surface of a cylindrical body-shaped stripping tool so as to face each other, and a pressing plate is projected on the inner peripheral surface of the electric wire receiver. The pressing plate is used to press the outer circumference of the wire while the cutter blade on the opposite side is used to scrape off the coating on the outer circumference of the wire.

The concrete structure of the present invention is such that a thick cylindrical body having a hollow hole for inserting an electric wire which penetrates in the longitudinal direction is axially bisected and one side of a superposition edge of the two divided pieces is pivotally supported to each other. Overlapping and connection are made so as to be freely openable, and an electric wire receiver is projectingly provided on the rear end surface of one of the divided pieces, and the concave curved inner peripheral surface of the electric wire receiver is provided on an extension line of the inner peripheral surface of the hollow hole. , Arc-shaped pressing plate concavely curved along the inner peripheral surface, the lower end of the pressing plate is lowered as it goes backward in the wire insertion direction,
The hollow hole is projected obliquely from the direction perpendicular to the axial direction, and a supporting member is provided from the rear end surface of the other split piece. The supporting member is opposed to the electric wire receiver and is attached to the holding plate. On the other hand, it is a stripping tool for electric wires, which is provided with a cutter blade that is displaced rearward in the electric wire insertion direction.

(Operation) The above-mentioned stripping tool for electric wires can be installed in a stripping brush tool body having a hollow portion of a substantially semi-cylindrical shape, and is transmitted to the drive rotation of the gear of the stripping brush tool body to cause the stripping brush tool body. Rotate in. Further, since this electric wire stripping tool is divided into two as described above and is openably and closably connected, it is rotated in the stripping brush tool body to open one at the opening of the brush tool body, If the electric wire whose skin is to be stripped is put in the hollow hole of the cylindrical body and the stripping tool is turned again, the stripping tool holding the electric wire in the hollow hole can be attached to the stripping brush tool body.

Then, the tip of the holding plate of the electric wire receiver of this stripping tool presses the outer circumference of the inserted electric wire, whereby the electric wire faces the direction of the cutter blade on the opposite side, and the cutter blade stabilizes on the coating on the opposite side of the electric wire. Then bite, and while moving the cylindrical stripping tool inside the stripping brush tool body as described above while moving the stripping brush tool body along the wire, the cutter blade spirally coats the wire. It will be stripped off.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 to 4, a thick cylindrical roller 3 having a hollow hole 1 for inserting an electric wire, which penetrates in the longitudinal direction, and an annular gear 2 on a front end surface thereof is provided. Is divided into two in the axial direction into divided pieces 4 and 4, and each divided piece 4 is rotatably supported by a roller shaft 3a penetrating a protruding arm 4a provided on one side. There is. Further, an electric wire receiver 5 having an inner peripheral surface 5a having the same diameter and having a concave cross-section and continuing from the inner peripheral surface of the hollow hole 1 is projected on the rear end surface of one of the divided pieces 4, and the electric wire receiver 5 is formed. In the middle of the above inner peripheral surface 5a
An arcuate pressing plate 6 having a concave curve is provided along the pressing plate 6, and the pressing plate 6 protrudes obliquely from the direction perpendicular to the axial direction of the hollow hole 1 so that the lower end thereof is lowered toward the rear in the wire insertion direction. It is provided. As shown in FIGS. 5 and 6, the holding plate 6 is sandwiched between the diagonal butting surfaces of the split pieces 5a and 5b obtained by splitting the electric wire receiver 5 into two,
The inner peripheral surface 5a is fixed by bolts 7 and 7 that penetrate them.
It is projected diagonally.

Further, a projecting arm 8 having an inner peripheral surface having the same diameter as the inner peripheral surface of the hollow hole 1 is protruded from the rear end surface of the other divided piece 4 so as to face the electric wire receiver 5, and this projecting arm 8 is further projected. A key-shaped cutter blade base 9 projects from the tip of 8 substantially parallel to the electric wire receiver 5, and a cutter blade 10 projects obliquely from the side surface of the base 9 on the extension of the hollow hole 1. The cutter blade 10 faces the electric wire receiver 5, but is displaced rearward with respect to the holding plate 6 provided on the electric wire receiver 5, and the blade 10a is provided toward the hollow hole 1. Cage,
The cutter blade base 9 is loosely fitted in a groove 11 formed in the lower surface of the cutter blade base 9, and a pin 12 passed through the groove 11 is axially supported by passing through a hole 10b of the cutter itself. Then, screw it from the top of the cutter blade base 9,
Two bolts 13 penetrating into the groove 11 are freely contactable with the upper surfaces of both ends of the cutter blade 10. By adjusting the screwing of these bolts 13, the cutter blade 10 rotates about the pin 12 and the protrusion angle with respect to the cutter blade base 9 can be adjusted.

Further, as shown in FIG. 7, a hook type lock fitting 14 is fixed to one of the butting edges of the divided pieces 4 and 4 on the side opposite to the roller shaft 3a, and the other end can be locked to the lock fitting 14. A lock lever 15 having a hook at one end is rotatably provided. The lock lever 15 is pivotally supported by a bearing 16 by a pin 17, and flanges 15a are projectingly provided on both sides of the other end. The lock release lever is attached to the pins 17 on both sides of the lock lever 15.
18 and 18 are pivotally supported, and each lock release lever 18 has a locking edge 18a capable of pressing the collar 15a. Also, each of these lock release levers 18 is
As shown in the drawing, the locking edges 18a are urged so as to always project outward, but each locking edge 18a closely opposes each flange 15a and is not pressed.

Next, in order to peel off the coating of the covered electric wire using this peeling tool 20 that sounds as described above, first, the hollow hole 1 of the peeling tool 20
Put the electric wire 22 in and put it on the peeling brush tool body 21.
In FIG. 7, when the lock release levers 18 are rotated clockwise about the pins 17, the locking edges 18a of the lock release levers 18 push the flanges 15a of the lock levers 15, whereby the lock levers 15 are locked. , Counterclockwise rotating around the pin 17 against the force of the spring (not shown), the hook at the tip disengages from the lock fitting 14, and the roller 3 is divided into two divided pieces 4 and 4 about the roller shaft 3a. Breaks. Then, in this state, as shown in FIG. 9, the peeling tool 20 is mounted in the peeling brush tool body 21 having a substantially semi-cylindrical hollow portion attached to the tip of a hydraulic rotary stick (not shown). Then, insert the electric wire 22 into the hollow hole 1 through the opening of the peeling tool 20,
When rotated in the skin removing brush tool body 21, each divided piece 4 becomes a cylindrical shape, and at the abutting end, the hook of the lock lever 15 is locked to the lock fitting 14 by the force of a spring (not shown). Then remove this peeling tool 20 from the peeling brush tool body 21.
When it is rotated in the normal direction, the lock release levers 18 come into contact with the inner peripheral surface of the hollow inside the semi-cylindrical hollow hole of the stripping brush tool main body 21 and resist the force of the spring as shown by the broken line in FIG. Is rotated counterclockwise around the pin 17 so as not to interfere with the outer circumference of the roller 3 and the rotation, and when it comes out of the peeling brush tool body 21, the above-mentioned lock release levers 18
Is projected from the outer circumference of the roller 3 by the force of the spring. However, if the peeling tool 20 is rotated in the reverse direction, each unlocking lever 18
Hits the opening edge of the semi-cylindrical hollow hole of the peeling tool body 21 and is rotated about the pin 17, whereby the locking edges 18a of the lock release levers 18 are moved to the brims of the lock lever 15. 1
5a is pressed, the lock lever 15 rotates against the force of the spring, and the hook at the tip disengages from the lock fitting 14. In this way, the peeling tool 20 can be opened on the two split pieces 4, 4 and removed from the peeling brush tool body 21.

And a peeling tool in which the electric wire 22 is passed through the hollow hole 1 of itself.
When 20 is attached to the peeling brush tool main body 21, as shown in FIG.
The protruding arm 8, the cutter blade base 9 and the cutter blade 10 project. In this state, the electric wire 22 passing through the hollow hole 1 of the roller 3 extends between the electric wire receiver 5 and the projecting arm 8 to the outside.
As shown in FIG. 11, the inner peripheral surface 5a of the electric wire receiver 5 has the inner peripheral surface 5a.
An arc-shaped presser plate 6 having a concave curve is provided along 5a, and the presser plate 6 is slanted from the direction perpendicular to the axial direction of the hollow hole so that the lower end of the presser plate 6 lowers rearward in the wire insertion direction. It is protruding. Then, one side of the outer circumference of the electric wire 22 is pressed at the place where the pressing plate 6 is provided, and thereby the other outer circumference of the electric wire 22 is pressed against the cutter blade 10 on the opposite side. Then, when the center shaft of the rotary stick is rotated, the gear inside the skin removing brush tool main body 21 is rotated in association with the center shaft, and the roller 3 is rotated by the gear 2 of the skin removing tool 20 meshing with the gear. When the peeling brush tool 20 is moved along the longitudinal direction of the electric wire 22 while rotating the roller 3, the pressing plate 6 and the cutter blade 10 do not face each other, so that the pressing plate 6 moves the outer circumference of the electric wire 22. The wire 22 is moved in a spiral shape while being pressed, and at the same time, the electric wire 22 is pressed by the pressing plate 6 toward the cutter blade 10 side, and the outer peripheral coating 22a on the opposite side of the electric wire 22 is scraped off in a spiral shape by the cutter blade 10.

Incidentally, the peeling brush tool body 21 of the above-mentioned embodiment is, in addition to this peeling brush tool 20, various adapters such as a cylindrical brush tool for brushing the exposed electric wire element by peeling.
23 can be worn. And as shown in FIG.
A stopper 24 may be provided on the skin removing brush tool body 21, and the tip of the stopper 24 may be always urged and urged by the stopper spring 25 into the opening of the semi-cylindrical hollow portion 26.

In this case, while the adapter 23 is opened to the two divided pieces 23a, 23a, the adapter 23 is fed into the hollow portion 26 of the stripping brush tool main body 21 while being normally rotated, as shown in FIG. Is pushed backwards. Further, when the adapter 23 rotates in the reverse direction in the stripping brush tool main body 21, the stopper 24 is inserted between the split pieces 23a and 23a by the urging of the stopper spring 25 as shown in FIG. 14, and the adapter 23 is prevented from falling. It can be prevented. And when removing this adapter 23 from the peeling brush tool body 21, use this stopper
It is possible to pull out the adapter 23 while pulling 24 by hand against the force of the stopper spring 25 and rotating it in the reverse direction.

The invention can be applied to an indirect tool such as a rotary stick as described above, and can also be applied to a tip tool in various robots.

(Effects of the Invention) The present invention has the above-described configuration, and the electric wire receiver and the cutter blade are made to protrude from one end surface of the cylindrical body-shaped skin removing tool so as to face each other, and the inner peripheral surface of the electric wire receiver is A retainer plate is provided along the peripheral surface.This retainer plate has an arcuate shape with a concave curve, and the lower end of the retainer plate is lowered toward the rear in the wire insertion direction. It is provided so as to be offset from the direction perpendicular to the direction. Therefore, when the electric wire is attached to this stripping tool, the electric wire is led out from between the electric wire receiver and the cutter blade, and when the electric wire is moved in the longitudinal direction of the electric wire while rotating the stripping tool, one end of the electric wire is Even if it comes into contact with the protruding pressing plate, the resistance is small, so that the insertion of the electric wire is not hindered, and the outer peripheral end of the electric wire can be pressed smoothly. Further, since the positions of the pressing plate and the cutter blade are not opposed to each other but are shifted back and forth, the electric wire pressed by the pressing plate faces in the opposite direction to the pressing plate, and is then pressed against the cutter blade, It is possible to peel off the wire coating while biting firmly into the cutter blade. Therefore, the wire coating can be stably and easily stripped in a spiral shape, and even if the wire stripped is a finned wire, the wire is clamped between the wire receiver and the protruding pressing plate and the cutter blade. It can be reliably peeled.

[Brief description of drawings]

FIG. 1 is a front view of the present invention, FIG. 2 is a side view of the same, FIG. 3 is an enlarged side view of a section of the same part, FIG. 4 is a bottom view of the same main part, and FIG. FIG. 6 is an exploded perspective view, FIG. 6 is a sectional view of the same assembly, FIG. 7 is a central longitudinal sectional view of this invention, FIG. 8 is an exploded perspective view of a lock lever, a bearing, and an unlocking lever of this invention, and FIG. A side view showing the state where the device is attached to the peeling brush tool body and the electric wire is inserted inside,
Fig. 10 is a side view showing a state in which this device is attached to the body of a peeling brush tool, Fig. 11 is a sectional front view showing a state of use when an electric wire is inserted in this device, and Fig. 12 is a state in which this device is mounted. Front view showing another embodiment of the skin removing brush tool body,
FIG. 13 and FIG. 14 are front explanatory views showing usage states of the same embodiment, respectively. In the figure, 1 is a hollow hole, 3 is a roller, 4 is a split piece, 5 is an electric wire receiver, 6 is a holding plate, 8 is a protruding arm, 9 is a cutter base,
10 is a cutter blade, 14 is a lock fitting, 15 is a lock lever,
17 is a pin, 18 is a lock release lever, 20 is a peeling tool, 21
Is the main body of the peeling brush tool.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (71) Applicant 999999999 Kayo Denki Kogyo Co., Ltd. 2-1, 6 Hamamatsucho, Minato-ku, Tokyo (72) Inventor Tomio Obata 5-2-1, Ebara, Shinagawa-ku, Tokyo Stocks Company Saneisha Works (72) Inventor Kaoru Tadaka 1-3-3 Uchisaiwaicho, Chiyoda-ku, Tokyo Within Tokyo Electric Power Company (72) Inventor Kazumi Kaneko 4-83-3 Shibaura, Minato-ku, Tokyo Stocks Company Kandenko (72) Inventor Keiji Yoshitomi 1-5-1, Kiba, Koto-ku, Tokyo Fujikura Electric Line Co., Ltd. (72) Inventor Heizaburo Uryu 2-6 Hamamatsucho, Minato-ku, Tokyo Stock company (56) References JP-A-52-54988 (JP, A) JP-A-61-73505 (JP, A) JP-A-1-286712 (JP, A) Actual development 61-114919 (JP , U) Actual Flat 2-146913 (JP, U)

Claims (1)

[Scope of utility model registration request] Claims: 1. A thick cylindrical body having a hollow hole for inserting an electric wire which penetrates in the longitudinal direction is axially supported by one side of a superposition edge of two divided pieces which are axially bisected to be superposed and open to each other. And an electric wire receiver is projected on the rear end surface of one of the divided pieces, and the concave curved inner peripheral surface of the electric wire receiver is provided on an extension of the inner peripheral surface of the hollow hole. An arc-shaped presser plate with a concave curve is provided along the surface, and the presser plate protrudes obliquely from the direction orthogonal to the axial direction of the hollow hole so that the lower end is lowered as it goes rearward in the wire insertion direction, A support body is provided from the rear end surface of the other divided piece, and a cutter blade is provided on the support body so as to face the electric wire receiver and to be shifted rearward in the electric wire insertion direction with respect to the holding plate. A stripping tool for coated electric wires.