JPS644266Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field] The earth hook is used in the construction of power distribution lines on utility poles. By grounding the wire 4, electricity is released to the ground. The present invention relates to an earth hook hoisting device that allows the earth hook 2 to be raised and lowered to a utility pole in an orderly, efficient and safe manner when the earth hook 2 is installed.

[Prior art] When working on power distribution lines on utility poles, it is necessary to open the pole switch for safety, but also to open the earth cap of the hold clamp cover of the open electric wire, hang the earth hook on the electric wire, and connect it to the ground. Grounding is carried out using a wire, but conventionally, when installing this earth hook, the earth hook was simply tied with a string or the like and hoisted onto a utility pole. However, because the earth hooks were not arranged in an orderly manner, it was difficult for the earth hooks to pass through gaps between electric wires, etc. when hoisting them onto utility poles, and it was extremely dangerous to come into contact with them or get caught in them. Therefore, two workers had to climb onto the pole to install the earth hook.
One person pulls a rope tied to an earth hook at the top of a utility pole. The other person had to carry a ground wire to guide and monitor the ground to avoid obstacles such as power lines and signboards, which was inefficient and made work difficult. or,
When hanging a ground hook on a wire, for example, in the case of power distribution using 3 wires, three ground hooks are required, and when the three ground hooks are tied together with one string and lifted, it is necessary to clamp the wire. This work was extremely irrational, as some of these earth hooks would somehow fall to the ground when the ties were untied.

[Purpose of the invention] The present invention was devised in view of the above-mentioned drawbacks, and its purpose is to easily hoist an earth hook onto a utility pole and to improve work efficiency on the utility pole.

[Structure of the invention] The structure of the earth hook hanging tool of the invention to achieve the above object is as follows: a rod-shaped member; an earth wire winding member provided near both ends of the rod-shaped member and around which the earth wire of the earth hook is wound; The present invention is characterized by comprising an earth hook holding member attached to the rod-shaped member and detachably holding the earth hook.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 2A is a schematic perspective view of the earth hook hanging device according to this embodiment.

In the drawing, 11 is an earth hook holding member;
It is a cylinder into which the handle part 5 of the earth hook 1 shown in FIG. It is fixed in the same direction. There are no particular restrictions on the fixing method; bolting,
It may be manufactured by methods such as adhesion or welding, or by integral molding without adhesion. A notch 12 is provided on the circumferential wall of each cylinder 11, which is smaller than the outer diameter of the handle portion 5, wider than the outer diameter of the ground wire 4, and runs along or parallel to the axial direction. It is fixed by the above-mentioned fixing method so as to face outward with respect to the fixed portion. Further, a rod 13, which is a rod-shaped member, passes through the center where a plurality of cylinders 11 are fixed, and the plurality of cylinders 11 do not move in the axial direction of the rod 13 near the end of the rod 13. It is set up like this. This stick 13
is constructed so that the illustrated portion 13a can be disassembled. An enlarged view of the portion 13a is shown in FIG. 2B. In the figure, A shows a combined view, and B shows an exploded view. 131 and 132 are locking rods that penetrate the small diameter rod 13. 133 is the locking rod 13
Spring 134 provided between 1 and 132
A washer is slidably fitted between the locking rods 131 and 132. Reference numeral 135 is an L-shaped notch provided in a large diameter rod, and the locking rod 132 is inserted from one end of this notch, and the spring 134 is inserted.
After pushing the locking rod 132 to the uppermost end of the notch 135 against the pressing force of
By fitting the large diameter rod into the locking rod 1 of the small diameter rod
32 and washer 133. 14a and 1
Reference numeral 4b is an L-shaped rod that projects perpendicularly to the axis of the rod 13 and is a ground wire winding member for winding the ground wire 4 of the earth hook 1. The surface of the rod is coated with a thin layer of resin so as not to damage the covering of the ground wire 4. is attached.
An enlarged view of the present L-shaped rod 14a is shown in FIG. 2C. In the figure, 141 is a rotation axis, and L is centered around this axis.
The left and right members of the mold bar 14a in the drawing are rotatable in the direction of the arrow. 142 is a hollow tube having a larger outer diameter than the L-shaped rod 14a, and by sliding this hollow tube until it covers the rotating shaft 141 as shown by the dotted line in the figure, the L-shaped rod 14a can be straightened. The L-shaped rod 14a can be bent freely about the pivot shaft 141 by fixing it in the shape and sliding the hollow tube to the position shown by the solid line in the figure. Connect the L-shaped rod to rod 1 like this.
By forming the wire so that it can be bent freely in the axial direction of the ground wire 3, it can be bent for convenience of carrying when it is not used for winding up the ground wire 4.
As shown in FIG. 1B, a known technique is used to construct the rod 13 integrally with the rod 13 to make it mechanically strong and inexpensive. Furthermore, by forming the rod 13 so that it can be disassembled as described above, it can be disassembled when the earth hook hanger is not in use, and can be miniaturized for convenience in storage and transportation. FIG. 3 shows a schematic perspective view of the earth hook hanging device when it is miniaturized. As shown in the figure, consideration has been given to minimizing the volume when storing and transporting. 15 is a hanging ring provided at the top end of the rod 13, and a hook 16 is attached to one end as shown in the figure.
This is provided for convenience in connecting the string 17 provided with the cord. The material of the cylinder 11 is not particularly limited, and lightweight and inexpensive plastic such as special polyethylene may be used.

A method of using the earth hook hanging device according to this embodiment configured as described above will be explained.

FIG. 4 is a schematic perspective view showing the state in which the earth hook hanging device of this embodiment is used. As shown in the figure, first connect the ground wire 4 to the peripheral wall notch 1 of the cylinder 11.
2 or by pressing the handle part 5 of the earth hook from the upper or lower end surface of the peripheral wall notch 12 of the cylinder 11, and also by inserting it into the twill line between the upper and lower end surfaces of the cylinder 11 and the notch 11. Since the taper "X" is formed, the elasticity of the plastic is used to slightly engage the end of the handle portion 5 with the guiding taper The earth hook 2 is loosely fitted to the inner periphery of the cylinder 11 by lifting it by the hook 16 provided at one end of the string 17, and then the two L-shaped rods 14a with the earth wire 4 protruding from the rod 13 are attached. and 14b. After it is integrated with the earth hook hoist, a worker with a transport network connecting the top of the pole and the ground climbs onto the pole, lowers the transport network from the top of the pole to the ground, and a worker on the ground connects the transport network to the ground. Hooking the hook 16 on the tip, the pole worker pulls the transportation net up onto the pole, removes the transportation net, and hooks the hook 16 on the cross arm near the open wire.
Remove the earth hooks 2 from the cylinder 11 one by one and attach the earth hooks 2 to the electric wires 1 in the order of the center wire and both outer wires as shown in the imaginary lines in Figure 1.

In addition, the earth hook 2 installed in this way
Since the notch 12 of the cylinder 11 is narrower than the outer diameter of the handle portion 5 of the earth hook 2, it will not come off naturally from the earth hook hanging tool during work.
For removal, attach only the necessary ground wire 4 of the ground hook 2 to the L-shaped rod 14 for winding the ground wire.
a, 14b, and then, since the notch 12 is wider than the outer diameter of the ground wire 4, the ground hook 2 can be pushed upward and removed from the ground wire. Alternatively, the earth hook 2 can be easily removed from the upper and lower end surfaces of the peripheral wall notch 12 of the cylinder 11 by using a lever.

If you use the earth hook hanging tool configured in this way, when installing the earth hook 2 on a utility pole during distribution line work, the earth hook 2 will be lifted up on the utility pole in an orderly manner, making it easier to pass through gaps between electric wires, etc., and preventing contact. You can work safely without getting caught or caught. Therefore, it is possible to greatly reduce the danger when attaching the earth hook 2 on a utility pole, which is accompanied by great danger. Further, since the earth hook 2 can be easily attached by one worker, work efficiency is greatly improved. Furthermore, even if a worker removes the earth hooks one by one from the earth hook hanging tool on the utility pole, there is no possibility that other earth hooks will fall to the ground by mistake.

It should be noted that the above-mentioned earth hook hanging tool is not only a simple earth hook, but when a branch circuit is taken from the distribution line, it goes without saying that the wire of the branch circuit may be lifted by the earth hook hanging tool. Further, as shown in FIG. 5, a string 21 made of rubber or the like with a hook 20 tightened at the tip is hung from the bottom wall of the fixed cylinder, and a hook stop 22 that engages the hook 20 is attached to the peripheral wall of the cylinder. If provided at the bottom end, this string 21 will connect the ground hook 2.
Since the handle portion 5 of the earth hook 2 can be wrapped around the earth hook 2, it is possible to prevent the earth hook 2 from swinging. Also, the part A of the hook 16 that is attached to the arm arm etc.
If one end of the bracket is made of a soft material, it can be easily attached to the armrest, and it will not come off naturally from the armrest during work, which is convenient. Furthermore, if the flange 30 is provided protrudingly on the outer periphery of the upper wall of the cylinder 1 as shown in FIG. 6, the main body will not come into contact with high and low voltage lines etc. when the earth hook 2 is lowered and the earth hook 2 will be pushed up from below and the main body will not fall. be.

In the above embodiments, only a cylindrical earth hook holding member has been described, but it can be used regardless of its shape as long as it can hold the earth hook in a detachable manner.For example, as shown in FIG. As shown in FIG. 7A, a part of the earth hook is made of a magnetic material 71 and a magnet 72 is embedded in the earth hook hanging tool, or as shown in FIG. 7B, a known surface fastener 73 is used to wind the earth hook. It goes without saying that various techniques can be substituted, and the above-mentioned object can also be achieved by these techniques.

[Effects of the invention] As explained above, although the earth hook hanging device according to the invention has an extremely simple structure, it is possible to move the earth hook body and the earth wire as if they were one body when hoisting it to a utility pole. This prevents the ground wire from getting tangled with electric wires due to wind, etc., and allows multiple ground hooks to be lifted easily and safely at the same time. Further, even when working on a pillar, only the necessary earth hooks can be easily removed from the earth hook hanging tool, thereby greatly improving work efficiency.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing how the earth hook is used, Fig. 2A is a structural schematic diagram of the first embodiment of the present invention, Fig. 2B is an enlarged view of the portion 13a in Fig. 2A, Fig. 2 C is an enlarged view of the part 14a in FIG. 2A, FIG. 3 is an exploded view thereof, FIG. 4 is a schematic diagram of its use, FIG. Structural perspective view of the embodiment, FIGS. 7A and B
shows a structural schematic diagram of the fourth and fifth embodiments. 1...Electric wire, 2...Earth hook, 13...
Rods, 14a, 14b...L-shaped rod, 16...Hook.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A rod-shaped member, a ground wire winding member provided near both ends of the rod-shaped member and around which a ground wire of an earth hook is wound, and attached to the rod-shaped member so that the earth hook can be freely attached and detached. An earth hook hanging tool comprising: an earth hook holding member for holding the earth hook. 2. The earth hook hanger according to claim 1, wherein the rod-shaped member is disassembled into a plurality of rod-shaped bodies. 3 Utility model registration claim 1, in which the rod-shaped member is bendable at at least one location.
Earth hook sling as described in section. 4. The earth hook hanger according to any one of claims 1 to 3, wherein the earth wire winding member is a rod-shaped body protruding in a direction perpendicular to the axis of the rod-shaped member. 5. The earth hook holding member is cylindrical, having a cavity larger than the outer diameter of the handle of the earth hook, and having a notch in the axial direction smaller than the outer diameter of the handle of the earth hook and larger than the outer diameter of the ground wire. An earth hook hanging device according to any one of claims 1 to 4 of the utility model registration claims, which is a product. 6. The earth hook hanger according to claim 4, wherein the earth wire winding member is bendable in the axial direction of the rod-shaped member.