JPS6057289B2 - Live wire coating stripping/polishing method and its equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a live wire coating stripping and polishing method and apparatus.

For example, as shown in FIG. 1, it is well known that a live wire 1 is connected to a transformer 3 via a lead wire 2, and power is supplied from there to a home.

However, in the past, the connection work to live wires was carried out by a person using a utility pole etc. to climb up to the height of the live wires, and then with the power off, which was dangerous and made work difficult. There were problems such as poor performance and various inconveniences associated with stopping the electricity. By the way, when connecting live wires, first peel off the insulation coating of the live wires over a certain length, then polish the exposed conductors, and finally connect the wires with clips. Of these, the first two, ie, the operations related to peeling off the insulation coating and polishing the conductor wires, were extremely difficult.

The present invention has been developed in view of the above circumstances, and it enables an operator to strip the coating of a live wire and polish the conductor from the ground with extremely easy operations, while the current is on.
The present invention provides a method for stripping and polishing the coating of live wires and an apparatus therefor, which can ensure safety in wire connection work, improve work efficiency, and eliminate inconveniences caused by power outage.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

2 to 9 show a method and apparatus for stripping live wire coatings.

That is, as shown in FIG. 2, the insulating coating 4 is peeled off in a spiral manner by ground operation, and as shown in FIG. 3, a certain length a of the conducting wire portion 5 is exposed. First, the apparatus will be explained with reference to FIGS. 4 to 8. Reference numeral 10 denotes a peeling device, in which bisected cylindrical rotating bodies 10a and 10b are pivotally connected via a shaft 11 at one side of the other so as to be openable and closable. These are biased in the closing direction by a spring 12. Reference numeral 13 denotes a rotational drive gear, which is provided at one end of each rotating body 10a, 10b, and can be opened and closed by overlapping the thin parts 13a with each other, and when closed, it presents a substantially complete gear. .

Reference numeral 14 denotes a gear drive ratchet member, which is detachably attached to the gear 13 through an opening, and has an operating lever 15 connected to its back.

16 is an operating rod made of insulating material, and the lever 15 has a concave and convex connection part 1.
7. They are connected via a tightening member 18 and the like.

Reference numeral 19 denotes a locking member for opening and closing the rotating body, which has a pair of facing downward locking claws 20 and 21 at both ends, and has an arch-shaped engagement arm 22 protruding from the upper end of the center portion to one side. A shaft 23 is attached to the other end of one of the rotary bodies 10a, approximately at the center thereof.
It is attached so that it can swing through the

This locking member 19 is biased toward the other end, that is, clockwise in FIG. 4, by a second spring 24 whose elastic force is smaller than that of the spring 12. And each locking claw 2
0 and 21 are selectively engaged with receiving claws 25 and 26 protruding from the opposite ends of each of the rotating bodies 10a and 10b, so that one side 10a of the rotating bodies can be opened with respect to the other 10b. It can be locked in each closed position. That is, as shown in FIG. 4, when the left side, that is, the open side locking pawl 20 is locked with the corresponding receiving pawl 25 with the rotating bodies 10a and 10b opened at a predetermined angle, the rotating bodies 10a, 10
b is prevented from rotating in the closing direction by the spring 12, and this state is locked.

If the rotating bodies 10a, 10b are expanded artificially from this state, the locking pawl 20 will come off from the receiving pawl 25, and the locking member 1
9 is rotated clockwise by the second spring 24. Therefore, if the spreading force is removed from the rotating bodies 10a, 10b from now on, the state shown in FIG. 4 will not be returned, and the rotating bodies 10a, 10b will move in the closing direction due to the spring 12, as shown in FIG. At the same time, the right side locking pawl 21 of the locking member 19 locks with the corresponding receiving pawl 26, and the rotating bodies 10a and 10b are locked in the closed state. Note that this locked state can be released by pushing the locking member 19 counterclockwise via the engagement arm 22.Next, 27 is provided on the other rotating member 10b. The turret 28 is a cutter attached to the turret.

As shown in FIGS. 4 and 5, this cutter 28 has its tip slightly lower than the axis of the rotating body 10b, and is arranged at a predetermined twist angle as shown in FIGS. 6 and 7. As a result, when the rotating bodies 10a and 10b rotate, the insulation coating 4 of the live wire 1 is cut off in a spiral manner. 29
is a third spring for preventing free rotation of the rotating bodies 10a, 102, and a through hole 3 provided in the midsection of each rotating body 10a, 10b.
It is fixed with a screw 31 so as to protrude inwardly through 0.

Then, the rotating bodies 10a and 10b are closed, and the live wire 1
When the third spring 29 is surrounded by the live wire 1
is pressed against the outer periphery of the outer wire 1 to generate a predetermined friction, and
Idle rotation of 0a and 10b is prevented. Also,
32 is a support arm protruding from the other end of the rotating body 10a parallel to the axis, and 33 is a shaft 3 on the tip side of this support arm 32.
4, which is a pivot arm pivotally attached via 4.

The electric wire 1 is connected to the free end side of the rotating arm 33 via the shaft 35.
A roller 36 for measuring the coating peeling distance is rotatably supported. Note that this roller 36 is connected to the support arm 32 by a toggle coil spring 38 installed between the shaft 35 and a shaft 37 provided on the distal end side of the support arm 32.
It can be stopped at a predetermined position above or below. The roller 36 rotates in contact with the surface of the coating 4 when the cutter 28 peels off the coating, and the amount of rotation can be measured from the ground etc. by changing the position of a scale provided on the peripheral edge of the roller 36, for example, a pin 39. I make it readable. Therefore, when carrying out coating stripping work, first the rotating bodies 10a and 10b are opened as shown in FIG. 4, and by ground operation via the operating rod 16, as shown in FIG. 9a, The rotating bodies 10a and 10b are surrounded by a live wire 1.

Then, from this state, the operating rod 16 is pulled down, and the rotating body 10a located on the upper side is hooked to the live wire 1, as shown in FIG. 9b. Then, as described above, the locking state of the locking pawl 20 on the open side of the locking member 19 is released, and the rotating bodies 10a and 10b are in the closed state as shown in FIG. 9c, so that they completely surround the live wire 1. become. Therefore, operating lever 16
By operating the lever 15, the ratchet member 1
4 is located on the side of the rotating bodies 10a and 10b, and as shown in FIG.
As shown in the figure, the ratchet member 14 is raised and lowered, thereby rotating the rotating bodies 10a and 10b clockwise in the figure. That is, when the ratchet member 14 is lowered, the ratchet pawl engages with the gear 13 and the rotating bodies 10a, 10b rotate. When the ratchet member 14 is raised, the third spring 29 for preventing free rotation comes into pressure contact with the outer surface of the live wire 1, so that the rotating bodies 10a, 10b are reliably stopped. As the rotating bodies 10a and 10b rotate intermittently in one direction, the cutter 28 is embedded in the insulation coating 4, and depending on the arrangement of the cutter 28, a spiral shape is formed as shown in FIG. The peeling action progresses.

Then, the peeling distance is set to a predetermined value a, as shown in FIG.
For example, when it is visually confirmed by the scale pin 39 of the roller 36 that the distance is normally 5 to 10 cm, the rotating bodies 10a and 10b are removed.

For this removal operation, for example, as shown in FIG. 8, a long rod 40 made of insulating material with an operating claw 41 attached to the tip is used.

That is, the operating claw 41 pushes up the engagement arm 22 of the locking member 19 by a predetermined angle, removes the closing side locking claw 21 from the receiving claw 26, and rotates the rotating body 10a in the opening direction. As shown in FIG. 4, the open-side locking claw 20 may be locked to the receiving claw 25 again, maintained in the open state, and removed from the live wire. As described above, the insulating coating can be removed.

Next, the polishing method and polishing device for the conducting wire 5 are shown in FIGS. 10 to 14.
This will be explained using figures. First, to explain the polishing equipment, 42
is a polishing tool, and has two cylindrical holders 42a and 42b.
have.

Each of the holders 42a, 42b is also supported by a single operating rod 43b made of an insulating material via a lever 43a. Wire brush bristles 44 protrude from the inner peripheral side of each holder 42a, 42b. The wire brush bristles 44 are installed in a semi-circular brush stand 45, and are formed by fitting them into grooves 42c along the circumferential sides of each holder 42a, 42b, and are screwed through screw holes 46. It is fixed in the holders 42a and 42b by screws 47. Support arms 48 and 49 are connected to the respective holders 42a and 42b, and are rotatably supported by the case 51 via a common shaft 50.

Square notches 52 and 53 are provided on the fulcrum side of each of the support arms 48 and 49, respectively, at slightly shifted positions. 54 connects each support arm 48, 4 through these notches 52, 53.
This is a lock body for locking 9.

This lock body 54 is, for example, in the shape of a square thick plate, and is connected to the shaft 50.
It is rotatably supported by the case 51 via a shaft 55 disposed below the support arms 48 and 49 by a compression coil spring 57 whose upper end is supported by a receiver 56 in the direction of each notch 52 and 53 of the support arms 48 and 49. Being pressed. Then, the locking corner 54a of the front edge of the lock body 54 is inserted into each notch 52, 53.
It is designed to be selectively locked. This locking will be described later. 58 is a pin provided on the lower support arm 48, and 59 is a second spring that presses the arm 48 upward.

This spring 59 is fixed to the case 51 via the aforementioned shaft 50 and a third shaft 60 . Note that 61 is an operating ring connected to the lower holder 42b. Further, 62 is a nut for fixing the receiver 56. Here, the engagement between the notches 52, 53 of each support arm 48, 49 and the lock body 54 will be explained.

The lock body 54 is constantly pressed against the rear end surfaces of the support arms 48 and 49 by the pressing force of the compression coil spring 57. The notch 52 of the upper support arm 48 is provided at a position where the support arm 48 is engaged with the engagement corner 54a of the locking body 54 in a substantially horizontal state (see FIG. 10). The upper edge of this notch 52 has an inclined flank surface 52a.
When the upper support arm 48 rotates upward, the lock body 54 can be pushed rearward (see FIG. 12). On the other hand, the notch 53 of the lower support arm 49 has a substantially right-angled shape, and is adapted to engage with a locking corner 54a of the locking body 54 when the support arm 49 rotates downward by a predetermined angle. (See Figure 11). Therefore, as shown in FIG. 10, when each holder 42a, 42b is in a closed state, that is, each support arm 48, 49 is in a substantially horizontal position, these are pressed by the lock body 54, and the upper support arm 4
The notches 52 of 8 are locked in the locking corners 54a, and the positioning is done for the time being. From this state, each support arm 4
8 and 49 are in a state where they can be rotated upwardly and downwardly, respectively.

Further, as shown in FIG. 11, when the lower support arm 49 is rotated downward, the support arm 49 can be locked at a position where the notch 53 locks with the locking corner 54a.

Further, as shown in FIG. 12, when the upper support arm 48 is rotated upward, the notch 52 of the support arm 48 is disengaged from the locking corner 54a.

When the lock body 54 is pushed rearward by the flank 52a, the lower support arm 49 is released from the locking corner 54a and is in the illustrated state. Then, each holder 42a, 42b returns to the closed state in which the holders 42a and 42b are rotated slightly higher than shown in FIG. 10. When performing the conductor polishing work, the lower support arm 49 is rotated downwardly and locked, and each holder 42a, 42b is left open, as shown in FIG.

This can be done manually via ring 61. Then, each holder 42a, 42b is surrounded by the live wire 1 by ground operation via the operating rod 43b, as shown in FIG. 15a. Then, from this state, the operating rod 43b is pulled down to hook the upper holder 42a to the live wire 1, as shown in FIG. 15b. Then, the above-mentioned Figure 12 → 1
The lower holder 42b rotates upward due to the action shown in FIG. 15, and each holder 42a, 42b becomes closed as shown in FIG.
By reciprocating each holder 42a, 42b in the axial direction of the conductive wire 5 via the operating rod 43b, the conductive wire can be polished by the brush bristles 44. When the polishing action is finished, raise the operating rod 43b and remove the lower holder 4.
2b to the live wire 1, the lower holder 42b is locked in a predetermined open position as shown in FIG. 11, and can be removed from the live wire 1. As described above, according to the present invention, a worker can strip the coating of a live wire and polish the conductor with extremely easy operations from the ground while the current is being applied, thereby making it possible to perform wire connection work. It is possible to ensure such safety, improve workability, and eliminate inconveniences caused by power outage.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show one embodiment of the present invention, and FIG. 1 is a schematic diagram showing a live wire, FIGS. 2 and 3 are schematic diagrams showing a peeled state of the live wire, and FIG. 5 is a front view showing the peeling device in the open state, FIG. 5 is a front view showing the same in the closed state, and FIG. 6 is a plan view of FIG. 5.
FIG. 7 is a side view of the same, FIG. 8 is a perspective view showing the assembled state, FIG. 9 is a schematic diagram showing the peeling process, FIG. 10 is a front view of the polishing tool in the closed state, and FIGS. 11 and 12. 13 is a side view of FIG. 10, FIG. 14 is a perspective view of the assembled state, and FIG. 15 is a schematic diagram showing the polishing process. 1...Live wire, 2...Leader line, 3...Transformer,
4... Insulating coating, 5... Conductor, 10... Peeling device, 10a, 10b... Rotating body, 11... Shaft, 12...
...Spring, 13...Gear, 14...Ratchet member, 15...Lover, 16...Operation rod, 17...
- Connecting portion, 18... Tightening member, 19... Tacking member, 20, 21... Locking claw, 22... Engagement arm, 2
3...Axis, 24...Spring, 25, 26...
Receptacle jaw, 27...Turret post, 28...Cutter, 29...
・Spring, 30...Through hole, 31...Zess, 32...
... Support arm, 33... Rotating arm, 34... Axis, 35... Axis, 36... Roller, 37... Axis, 3
8... Coil spring for toggle, 39... Pin, 4
0... Operating rod, 41... Operating claw, 42... Polishing instrument, 42a, 42b... Holder, 43a... Operating rod, 43b... Lever, 44... Brush bristles, 45・・・
・Brush stand, 46...screw hole, 47...screw, 48
, 49... Support arm, 50, 55, 60... Axis,
51...Case, 52, 53...Notch, 54...
Lock body, 56... Receptacle, 57, 59... Spring, 58... Pin, 61... Ring, 62... Nut.

Claims (1)

[Scope of Claims] 1. A stripping device is attached from the ground to the outer periphery of the insulation coating of a live wire via an operating rod, and by moving the operating rod up and down, the stripping device is moved around the live wire via a ratchet mechanism. The insulating coating is peeled off in a spiral manner using a cutter that rotates in one direction, and the peeled distance is measured by rolling on a live wire of a roller installed in the peeling device, and the coating is peeled over a certain distance. After that, a polishing tool is attached from the ground to the outer periphery of the exposed conductive wire section via an operating rod in place of the stripping tool, and the polishing tool is slid along the axis of the live wire via the operating rod. Live wire coating stripping and polishing
Polishing method. 2. A bisected cylindrical rotating body pivotally mounted on the side and biased in the closing direction by a spring, a gear provided at one end of this rotating body, a ratchet member attached to this gear, and One operating rod connected to the ratchet member and a pair of locking claws that are swingably provided on the other end of the rotating body and facing each other are selectively attached to receiving claws provided on both sides of the rotating body. A live wire coating stripping device comprising: a locking member that locks each of the rotary bodies in the opening and closing positions by locking the rotary body; and a cutter that is provided at an angle on the rotary body. 3. The live wire stripping device according to claim 2, further comprising a roller having a scale for measuring stripping that rolls on the live wire. 4 a halved cylindrical holder biased in the closing direction;
One operating rod that supports each of the holders, brush bristles that protrude toward the inner circumference of the holder, and a support arm that supports each of the holders and is rotatably supported on one common shaft. and a notch provided at the fulcrum side end of each of these support arms in pressure contact with each of the support arms by means of a spring and a locking corner of the support arm being locked in each of the notches. A locking body capable of holding one of the support arms in an open state and capable of releasing the holding of one of the support arms in the open state by retreating from a position where the other support arm is in a slightly open state. A live wire polishing device that is characterized by the following characteristics: