JPS6245450Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a live-wire extension tool used in a live-line extension method in which the wire is extended between utility poles at a location close to the live wire.

When replacing high-voltage wires with new wires,
Conventionally, the power was shut off, and during this time wire extension rollers were attached to the armrests of each utility pole, ropes were passed through these extension rollers, and the new line was pulled out using this rope, and the new line was extended between the utility poles and the existing line The lines were removed and the newly installed lines were fixed to insulators, etc. However, there is a risk that an unexpected accident may occur on the customer side if the power is out for a long time, so it is recommended to shorten the outage time as much as possible. is required. Therefore, we left the existing lines live, completely protected them by covering them with insulation protection tubes, etc., extended the new lines, and then shut down the power and replaced the existing lines with the new lines. It's on, but
In this case, when extending a new line, workers approach the live wire and install wire extension rollers, etc., which may come into contact with the live wire, which is dangerous and requires time and effort to protect the existing line. It was hot.

This idea was devised in view of these points.The wire stretching roller is attached to the arms of utility poles from a position away from the live wires, removed, and one side of the four rollers of the wire stretching roller is opened and closed. The purpose of this invention is to provide a live wire drawing tool that can be used in a variety of ways in the live wire drawing method, such as inserting and removing ropes into and out of these four-sided rollers, and which is extremely easy to operate. .

An embodiment of this invention will be described below with reference to the drawings.
1 is hotstake, 2 is hotstake 1
The handle 3 made of an insulating material inserts its large diameter root 3a into the upper inner periphery of the handle 2, fixes the large diameter root 3a and the handle 2 with a pin 4, and protrudes from the upper end of the handle 2. The small diameter threaded rod 5 is this threaded rod 3.
A fixed tube 6 is crowned and fixed to the outer circumference of the threaded rod 3, and 6 is a key-shaped hook whose root is fixed to the upper end of the threaded rod 3. This hook 6 has a branch-like auxiliary hook 6a on the other side. . Reference numeral 7 denotes a case tube that covers the outer periphery of the threaded rod 3 and fixed tube 5 between the handle 2 and the hook 6; 8 and 9 denote an upper vertical hole and a lower vertical hole bored at the top and bottom of one side of the case tube 7; 10 is a lower key piece which is crowned on the lower outer periphery of the threaded rod 3 and has a downward key portion at the tip thereof projected outward from the lower vertical hole 9 to the case tube 7; 11 is a connection between this lower key piece 10 and the upper end of the handle 2; Threaded rod 3 between
Nut screwed on the outer periphery, 12 a spring wound around the outer periphery of the threaded rod 3 between the fixed tube 5 in the case tube 7 and the lower key piece 10, 13 capped on the upper outer periphery of the threaded rod 3, and the tip attached to the upper part. A protrusion projecting outward from the vertical hole 8 to the case tube 7; 14 a protrusion fixing tube fixed to the outer periphery of the threaded rod 3 above the protrusion 13; 15 a protrusion fixing tube above the protrusion fixing tube 14; It covers the outer periphery of the threaded rod 3, and connects the downward concave portion 15a at the tip from the upper vertical hole 8 to the case pipe 7.
This is the upper key piece that protrudes outward.

This invention has the above-described structure. Next, the wire drawing roller 16 using this invention will be explained with reference to FIGS. 2 to 6. Reference numeral 17 indicates two side frames of this wire extension roller provided at a constant interval, 18 indicates a horizontal roller pivotally supported on shafts 19 which are placed on the front and rear sides of these side frames 17, and 20 indicates one side frame. A rotating shaft whose one end is rotatably supported on a shaft 21 provided at the upper end of the frame 17, and the free end of this rotating shaft 20 can be freely inserted into a locking groove 22 provided at the upper end of the other side frame 17. It is. 23 is a door roller pivotally supported on this rotating shaft 20, 24 is a spring that always urges this rotating shaft 20 to rotate in the counterclockwise direction in FIG. The lock fitting 25 has a key part 25a at the tip and a hook hole 25 in the middle.
It has b. This lock fitting 25 is always urged to rotate clockwise in FIG. 22, against the force of the spring 24, the locking fitting 25 rotates under the force of the spring 27 and locks the free end of the pivot shaft 20.
28 is a lock fitting 2 provided on the side frame 17.
5 stoppers, 29 side frames 17 on both sides
each upper end inward edge 17a and each lower inner step 17b
These vertical rollers 29 are located between the horizontal rollers 18 and 18, and these vertical rollers 29,
The horizontal roller 18 and the door roller 23 form a four-sided roller. 31 is each side frame 17
A fixed frame 32 and 33 hang down integrally with the side frame 17 at the rear of the frame, and 32 and 33 are an upper rod and a lower rod that extend above and below between the fixed frames 31 on both sides, respectively, with a collar 34 on the outer periphery. . Reference numeral 35 denotes a rotating frame with one end pivotally supported on the lower part 33, and this rotating frame 20 is supported by a spring 36 wound around the lower rod 33.
It is urged to rotate counterclockwise in FIG. 3 about the lower rod 33. 37 is a notch hole bored in the free end of this rotating frame 35, 38 is a locking hole bored in the bottom plate of this rotating frame 35, 39 is a hanging part hanging down from the front part of each side frame 17,
Reference numeral 40 denotes a door lever whose upper end is pivoted on a shaft 41 extending between the hanging parts 39 on both sides.
0 is biased to rotate counterclockwise in FIG. 3 about the shaft 41 by a spring 42 wound around the shaft 41. 43 is a tightening nut screwed onto the threaded portion of the free end of the door rod 40, 44 is an annular hook of this tightening nut 43, and 45 is a channel groove type slidably fitted between the fixed frames 31 on both sides. 46 is a long hole drilled in both sides of this metal fitting 45, 47 is a tightening bolt that passes through each fixed frame 31 and loosely passes through each long hole 46, and has a nut 48 screwed onto its tip; 49 is a At the armrest insertion part surrounded by the lower side of the side frame 17, the fixed frame 31, and the hanging part 39, slide the presser metal fitting 35 to adjust the width of the armmetal insertion part 49 to the size of the armrest. Can be matched.

Next, in order to attach the wire drawing roller 16 to the armrest 50 of the telephone pole using the hot stick 1 of this invention, first attach the upper key piece 15 of the hot stick 1 to the upper rod 32 of the wire drawing roller 16, as shown in FIG. The upper rod 32 is inserted between the upper key piece 15 and the projection piece 13, and the rotating frame 35 of the wire extension roller 16 is rotated downward against the force of the spring 36. When the lower key piece 10 of the hot stake 1 is inserted into the locking hole 38 and the handle 2 is turned while holding the case tube 7, the upper key piece 15 moves downward along the threaded rod 3, and the lower key piece 10 moves downward. Natsu 11
As it descends along the threaded rod 3, it is pushed down by the spring 12. And the upper key piece 15 is a protruding piece 16
The upper rod 2 of the wire drawing roller 16 is held between the downward recess 15a of the upper key piece 15 and the protruding piece 16, and the lower key piece 10 is held at the edge of the locking hole 38 of the rotating frame 35. Press the rotating frame 35 and lower key piece 1
It is locked at 0. A worker holds the handle 2 of the hot stake 1, which has the wire extension roller 16 locked at its tip in this manner, and attaches the wire extension roller 1 to the cross arm 50 of the telephone pole.
The armature 50 is fitted into the armature fitting portion 49 of No. 6, and the wire drawing roller 16 is placed thereon. And hot status 1
When the operator turns the handle 2 in the opposite direction, the nut 11 rises along the threaded rod 3, and this nut 11
The lower key piece 10 rises against the force of the spring 12. As a result, the lower key piece 10 separates from the edge of the locking piece 38 of the rotating frame 35, so the rotating frame 35 is released from the lock and rotates by the force of the spring 36, so that the armrest 50 Press the bottom surface. On the other hand, when the handle 2 of the hot stake 1 is turned, the upper key piece 15 also rises, and after the lower key piece 10 is disengaged from the edge of the locking hole 48 of the rotating frame 35, the upper key piece 15 and the protruding piece 13 are removed. are sufficiently separated, and the upper rod 32 of the wire drawing roller 16 can be removed from between the upper key piece 15 and the projection piece 13. Even if the hot stake 1 is removed from the wire stretching roller 16 in this way, the wire stretching roller 16 holds the arm 50 between the upper edge of the arm insertion part 49 and the rotating frame 35, and the arm 50
It becomes temporarily fixed. So hot status 1
hook 6 on the annular hook 44 at the tip of the door rod 40 of the wire extension roller 16, pull down the door rod 40 against the force of the spring 42, and insert it into the notch hole 37 at the tip of the rotating frame 35. Turn the tightening nut 43 and tighten it to the rotating frame 35. In this way, the wire drawing roller 16 can be fixed to the cross arm 50. In order to open the door roller 23 of the wire drawing roller 16, hook the hook 6 of the hot stay 1 into the hook hole 25b of the lock fitting 25 of the wire drawing roller 16, and when the hot stay 1 is pulled, the lock fitting 25 locks onto the bolt shaft. The door roller 2 rotates around 26 by the force of the spring 24, as shown by the dashed line in FIG.
3 jumps up. Wire extension roller 1 opened in this way
An electric wire or a rope placed on a cross arm 50 on the side of the wire stretching roller 16 can be hooked onto the auxiliary hook 6a of the hot stay 1, lifted, and inserted into the four-sided roller 6. To close the door roller 23, the hook 6 of the hotstab 1 is hooked onto the door roller 23 and the door roller 23 is pulled down. At this time, the key part 25a of the lock fitting 25 is positioned beside the locking groove 22 by the spring 27, but the rotating shaft 20 of the door roller 23 pushes the outer edge of the key part 25a, resisting the force of the spring 27. The lock fitting 25 rotates slightly counterclockwise in FIG.
to go into. As a result, the lock fitting 25 is rotated clockwise in FIG. 3 about the bolt shaft 26 by the force of the spring 27, and the tip of the rotating shaft 20 is locked. To remove the wire drawing roller 16 of the present invention from the cross arm 50, hook 6 of the hot stay 1 onto the annular hook 44 at the tip of the door rod 40 of the wire drawing roller 16, and then tighten the tightening nut 43. Turn it to loosen it, and attach the free end of the door rod 40 to the rotating frame 3.
5, the door rod 40 is rotated counterclockwise in FIG. 32 is locked between the downward recess 15a of the upper key piece 15 of the hot stay 1 and the protruding piece 13 as described above, and when the hot stay 1 is pushed up in the direction to separate the wire extension roller 16 from the arm 50, the rotating frame 20 is moved. The wire drawing roller 16 is rotated and removed from the cross arm 50.

In this way, in this invention, the upper rod 32 of the wire drawing roller 16 is hooked onto the upper key piece 15 of the hot stake 1, and the rotating frame 35 of the wire drawing roller 16 is rotated against the force of the spring 36 to engage the wire drawing roller 16. Hook the lower key piece 10 into the stop hole 38, hold the case tube 7, and tighten the handle 2.
By turning the wire drawing roller 16, the wire drawing roller 16 can be very easily locked onto the tip of the hot stake 1.The wire drawing roller 16 can be very easily locked onto the tip of the hot stake 1 by simply placing the wire drawing roller 16 on the cross arm 50 with the handle 2 of the hot stick 1 and turning the handle 2. roller 1
6 is released, and the wire extension roller 16 is connected to the cross arm 5.
Temporarily locked at 0. Furthermore, the hot stake 1 can be hooked onto the annular hook 44 of the door rod 40 of the wire drawing roller 16 to close the door rod 40, and the tightening screw 43 at the tip of the door rod 40 can be tightened. It can be fixed at 50 gold. Also, when removing the wire drawing roller 16, after opening the door rod 40 with the hot stake 1, hold the handle 2 of the hot stake 1 and insert the upper key piece 15 into the upper rod 3.
2 and turn the handle 2, the wire drawing roller 16 can be locked at the tip of the hot stake 1. When the hot stake 1 is pushed up so as to separate the wire drawing roller 16 from the cross arm 50, the wire drawing roller 16 becomes extremely It can be easily removed from the armband 50. Also, the wire extension roller 16
The door roller 8, which forms one of the four-sided rollers, can be opened and closed using the hook 6 of the hot stay 1.
Further, electric wires and ropes can be easily taken in and out of the four-sided rollers by using the upward auxiliary hook 6a of the hot stay 1. Therefore, the attachment and detachment of the wire drawing roller 16 to and from the cross arm 50, the opening and closing of the four-sided rollers of the wire stretching roller 16, and the insertion and removal of electric wires, etc. into the four-sided roller can be performed using the handle of the hot stay 1 at a position away from the cross arm 50. 2 and can be operated by hand, making it extremely convenient for live wire work.

10 and 11 show another embodiment of this invention.Instead of the above embodiment, a threaded rod 3' having a winding opposite to that of the threaded rod 3 is provided at the upper end of the threaded rod 3, and the lower key piece 10 is ’ is the upward key part, and the nut 1
1' is screwed onto the threaded rod 3 at the top of the lower key piece 10', and the spring 12' is wound around the outer periphery of the threaded rod 3 between the lower key piece 10' and the upper end of the handle 2. The piece 13 is screwed and locked onto the threaded rod 3', and a spring 51 is wound around the outer periphery of the threaded rod 3' between the upper key piece 15 and the projection piece 13. In this case, as shown in FIG. 10, the upper rod 32 of the wire drawing roller 16 is held between the upper key piece 15 and the protruding piece 13, and the upper end edge of the locking hole 38 of the rotating frame 35 of the wire drawing roller 16 is held in the lower part. Press and lock with the key piece 15,
When you turn the handle 2, the nut 1 will move along the threaded rod 3.
1' descends, and the lower key piece 1 resists the force of the spring 12'.
0 is pushed downward and disengaged from the upper edge of the locking hole 38 of the rotating frame 35, and the rotating frame 35 rotates upward around the lower rod 33 as shown in FIG. Press. On the other hand, upper key piece 1
5 rises along the threaded rod 3', the protruding piece 13 is pressed by the spring 51, a gap is created between the upper key piece 15 and the protruding piece 13, and the upper rod 33 can be removed from between them. In this way, in this embodiment as well, by turning the handle 2, the upper key piece 1 is
5 and the protruding piece 13 can be freely approached to each other, and the lower key piece 10' can be moved, and the same effect can be achieved. Further, in the above embodiment, as shown in FIG. 1A, the threaded rod 3
Since the large diameter root 3a of the threaded rod 3 is inserted and fixed with a pin 4, the large diameter root 3a of the threaded rod 3 can be removed from the handle 2 by shifting the cover 4a that covers the outer periphery of the handle 2 and removing the pin 4. Therefore, when the work is finished,
When carrying and storing, the hotstab 1 of this invention can be separated into halves, making it very convenient and not bulky.

As described above, this invention makes it extremely easy to attach and remove wire extension rollers to and from utility pole arms, open and close the four-sided rollers of the wire extension rollers, and insert and remove electric wires, etc. into and out of the four-sided rollers from a remote location. This is a wire drawing tool suitable for wire drawing work.

[Brief explanation of the drawing]

Figures 1A and 1B are illustrations of an embodiment of the hotstay of this invention, A is a front view with the key piece in the locked state, B is a front view with the key piece in the released state, and Figure 2 is a diagram showing the use of this invention. Front view of wire extension roller, 3rd
The figures are the same left side view, Fig. 4 is the same rear view, Fig. 5 is the same partially omitted right side view, Fig. 6 is an explanatory view showing the same lock fitting in the open state, and Figs. 7 to 9 are respectively An explanatory diagram showing a method of attaching a wire drawing roller to a cross arm using this invention, and FIGS. 10 and 11 are explanatory diagrams showing a method of attaching a wire drawing roller to a cross arm using other embodiments of this invention, respectively. It is a diagram. In the figure, 1 is the hot stay, 2 is the handle, and 3 is the hot stick.
is a threaded rod, 5 is a fixed tube, 6 is a hook, 6a is an auxiliary hook, 7 is a case tube, 8 is an upper vertical hole, 9 is a lower vertical hole, 10 is a lower key piece, 11 is a nut, 12 is a spring, 13 15 is a protruding piece, and 15 is an upper key piece.

Claims (1)

[Scope of utility model registration request] A threaded rod is provided protruding from the upper end of the handle, a hook is provided at the upper end of this threaded rod, a case pipe is mounted on the threaded rod, and the protruding piece and upper key piece that are locked on the upper part of the threaded rod are attached to the case pipe. The lower key piece, which is secured to the lower part of the screw rod, is made to protrude outward from the upper vertical hole bored in the case tube, and the lower key piece, which is locked to the lower part of the threaded rod, is caused to protrude outward from the lower vertical hole bored in the case tube. This wire drawing tool for live wires consists of a hot stay in which an upper key piece and a projecting piece can freely approach each other along a threaded rod when the handle is turned, and the lower key piece can also be moved along the threaded rod.