JPH06153344A - Overhead cable twisting device - Google Patents

Abstract

PURPOSE:To provide an overhead cable twisting device wherein an overhead stringing cable can be twisted by remote control from the ground. CONSTITUTION:An overhead cable twisting device 1 comprises a supporting base 2 removably mounted to a pole or the like, rotary disk 3 which is rotatably supported by this supporting base 2 through which the overhead cable is passed and by which the cable is clamp and a rotary disk rotating means 4 for twisting the inserted cable by giving turning force to this rotary disk 3 from a ground part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an overhead wire cable twisting device for inserting a twist into an overhead wire cable, and more particularly to an overhead wire cable.
The present invention relates to an overhead wire cable twisting device capable of inserting a twist of a bull by remote control from the ground.

[0002]

2. Description of the Related Art A self-supporting cable is known as one of communication cables installed between electric poles. The self-supporting cable is a unit in which a communication cable for communication and a supporting wire for supporting the communication cable are integrally installed along with each other, and the cross section thereof is substantially the same. It has a figure eight shape. In general, a self-supporting cable is used by alternately twisting these supporting wires and communication cables. Twisting is mainly for reducing the influence of wind pressure and is about 10
Inserted once every m. Generally, in the process of constructing a self-supporting cable, the step of inserting the twist into the self-supporting cable is performed after the wire drawing process. That is, the cable was extended on the utility pole without twisting, and then the operator went up to the utility pole and inserted it by using a twist insertion tool made specifically for twist insertion. The twist insertion tool forms a twist by sandwiching a cable and a supporting wire at its tip end with a bare hand tool and turning the base end around the cable.

[0003]

However, as described above, the twisting and inserting work is a work at a high place on the electric pole, and requires a force. Torsional insertion work that requires force on an unstable utility pole was dangerous.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned problems and to provide an overhead wire cable twisting device in which the twisting of the overhead wire cable can be inserted by remote control from the ground.

[0005]

In order to achieve the above object, the present invention inserts a support base removably attached to a utility pole or the like and a cable rotatably supported by an overhead wire on the support base. A rotary disk for gripping the rotary disk and a rotary disk rotating means for inserting a twist into a cable inserted by applying a rotational force to the rotary disk from the ground portion.

Further, the turntable has a cable insertion port at its axial center and a cable inserted into the cable insertion port.
It has gripping frames combined in a cross-shaped manner for gripping the outer peripheral portion of the cable, and has a biasing means for biasing the cable inward in the radial direction of the cable into which the gripping frames are inserted. It is the one.

[0007]

With the above construction, when a rotating force is applied to the rotating disc rotating means from the ground portion to rotate the rotating disc, the rotating disc having the cable inserted therein is rotated while gripping the cable. Therefore, a twist is inserted in the cable.

[0008]

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

As shown in FIG. 1, an overhead wire cable twisting device 1 includes a support base 2 which is detachably attached to a utility pole or the like, and a cable which is rotatably supported by the support base 2 to be installed over the cable. And a rotating plate rotating means 4 for inserting a twist into a cable to be inserted by giving a rotating force to the rotating plate 3 from the ground portion. There is. Further, the turntable 3 has a cable insertion port 5 in its axial center portion, and a gripping frame combined in a girder shape for gripping the outer peripheral portion of the cable inserted into the cable insertion port 5. The urging means 7 has a frame 6 and urges the cable inserted through the grip frame 6 inward in the radial direction.

More specifically, the support base 2 has a disk-shaped base 8 having a concentric circular opening 10 of a predetermined diameter in the center, and a tubular guide 9 extending axially from one side of the base 8. It consists of The pedestal 8 can be detachably fixed to a utility pole or the like with bolts or the like. The pedestal 8 and the guide 9 are peripherally cut out in a predetermined width along the radial direction to form a peripheral opening 11 communicating with the concentric circular opening 10. The top of the guide 9 is expanded radially inward and outward to form a guide ring 12 for guiding the rotary disk 3.

The turntable 3 is located above the guide 9 and above the support base 2.
It is a disk provided coaxially with a predetermined diameter, and an annular groove 14 that fits into the guide ring 12 is provided on one side of the disk. The turntable 3 is rotatably supported by the guide 9 by fitting the annular groove 14 into the guide ring 12. The concentric circular opening 10 is provided on the turntable 3.
A concentric circular opening 13 having the same diameter as that of the concentric circular opening 13 is provided, and the periphery of the concentric circular opening 13 is cut out by being aligned with the peripheral opening 11 along the radial direction to communicate with the concentric circular opening 13. The concentric opening 13 and the concentric opening 10 form a cable insertion port 5 through which the cable is inserted.

On one side of the turntable 3, two parallel round bars 16 crossing the concentric opening 13 are bridged. Each round bar 16 has a sphere 25 attached to both ends thereof.
Are engaged with slide fittings 17 fixed to the turntable 3. The slide fitting 17 has a slit 26 extending in a predetermined length in the longitudinal direction orthogonal to the round bar 16 and engaging the sphere 25 in the longitudinal direction. The sphere 25 is movable along the slit 26, so that the round bar 16 is held by the slide fitting 17 so as to be movable in parallel. The outer side of the slit 26 in the radial direction of the turntable 3 is open,
From here, move the ball outward in the radial direction of the turntable 3
Can be removed. Each round bar 16 is connected to each other by a coil spring 18 near both ends thereof. String spring 1
Since both ends of 8 are formed in a hook shape, they are attached by engaging the outer circumference of the round bar 16. In this way, the round bar 16 and the helical spring 18 are detachably attached to the turntable 3, and when the round bar 16 is translated in the radial outward direction of the turntable 3, the helical spring 18 moves radially inward. It is configured to be biased toward. On the opposite side of the turntable 3, a pair of similar round bars 16a is provided orthogonal to the round bar 16 described above. Similar to the round bar 16, the round bar 16a is held by the slit of the slide fitting 17a so as to be movable in parallel, and is connected to each other by the coil springs 18a near both ends thereof. Therefore, the round bar 16a and the helical spring 18a are attachable to and detachable from the turntable 3 and the round bar 1a.
When the respective 6a are translated in the radial direction outward of the rotary disk 3, the coiled springs 18a are configured to be biased inward in the radial direction.

As described above, the round bar 16 and the round bar 16a, which are provided on both sides of the turntable 3 at right angles to each other, serve as a girder for gripping the outer peripheral portion of the cable inserted through the cable insertion port 5. The gripping frame 6 is formed in a combined shape. Also,
The round bar 16 and the coiled spring 18 connecting the bar 16a and the coiled spring 18a form a biasing means 7 for biasing the cable inserted into the grip frame 6 inward in the radial direction of the cable.

A large number of tooth profiles 19 are formed on the turntable 3 along the outer periphery thereof at a predetermined pitch. Therefore, turntable 3
Is a gear 20 that is rotated by being guided by the guide ring 12.
Will be configured. An upper end of a chain 21 having a sufficient length with respect to the height of the electric pole is engaged with and hooked on the upper half of the gear 20, and a lower end of the chain 21 is suspended above the ground. The turntable 3 can be rotated in any direction by pulling the chain 21 in any direction.
That is, the gear 20 and the chain 21 form a turntable rotating means 4 for inserting a twist into a cable which is inserted by giving a rotating force from the ground portion.

Such an overhead wire cable twisting device 1 is detachably attached to a utility pole 22 or the like, as shown in FIG. That is, the support fitting 2 fixed above the telephone pole 22
The support base 2 is fixed to 3 by bolts or the like. A chain 21 hung on the upper half of the gear 20 which is the rotating disk rotating means 4.
Has its lower end reaching the ground surface. The self-supporting cable 24 extended between the electric poles is inserted through the cable insertion port 5 and the gripping frame 6 of the turntable 3. Grip frame
The frame 6 is urged inward in the radial direction of the turntable 3 by the urging means 7, and therefore the self-supporting cable 24 is pressed by the holding frame 6 from four directions and held. As shown in the figure, the self-supporting cable 24 is not circular in cross section, but is in the shape of a figure 8. Therefore, the self-supporting cable 24 is rotated in the gripping frame 6 that is assembled in a cross beam shape and is biased inward in the radial direction. Will be regulated.

Next, the operation of the embodiment will be described.

In FIG. 2, the chain 21 extends in the direction of arrow A.
When is pulled, the rotary disk rotating means 4 is activated, and the rotary disk 3 rotates in the direction of arrow B. At this time, the rotation of the turntable 3 is achieved by the guide ring 12 guiding the annular groove 14. When the turntable 3 rotates in this manner, the gripping frame 6 fixed to the turntable 3 also rotates. Since the rotation of the self-supporting cable 24 held by the holding frame 6 is restricted within the holding frame 6, the self-supporting cable 24 rotates together with the holding frame 6. Self-supporting case
When the bull 24 rotates along with the grip frame 6, a twist is inserted into the overhead wire cable 27 composed of the extended self-supporting cable 24. In this way, the twist is easily inserted into the overhead wire cable 27 composed of the self-supporting cable 24 by operating the rotating disk rotating means 4 from the ground.

Next, the process of laying the self-supporting cable 24 using the overhead wire cable twisting device 1 will be described.

As shown in FIG. 3, first, the overhead wire cable twisting device 1 is attached to each of the utility poles 22 on which the self-supporting cable 24 is to be laid. Self-supporting case
Each cable cable twisting device 1 in order while extending the cable 24
It is inserted into the holding frame 6 and is connected to the utility pole 22. Next, the turntable rotating means 4 is operated from above the ground to insert a twist into the overhead wire cable 27 composed of the self-supporting cable 24. After the twist is inserted into the overhead wire cable 27, the holding frame 6 is removed, and the self-supporting cable 24 is attached to the overhead wire cable.
Free from the Bull Twisting Device 1. Also, the support base 2 is removed from the utility pole 22 by removing the fixing bolt. After that, the gear 20 is rotated so that the peripheral opening 11 of the support base 2 and the peripheral opening 15 of the turntable 3 are aligned with each other.
1. Pass the self-supporting cable 24 through the peripheral opening 15 and remove the overhead wire cable twisting device 1. In this way, the overhead wire cable 27 composed of the self-supporting cable 24 can be twisted and inserted from the ground portion, and the overhead wire cable twisting device 1 can be removed.

In the present embodiment, the gear 20 and the chain 21 are combined as the turntable rotating means 4 to apply human power from the ground, but belt driving may also be used.
Alternatively, the support base 2 may be provided with a motor, a gear, and the like to serve as a driving force source for the gear 20, and the driving force source may be operated from the ground by a remote controller.

[0021]

The effect of the present invention is that the twist insertion work can be performed from the ground portion, so that the safety is improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a side view showing the operating method of the present invention.

FIG. 3 is a schematic view showing a process of overhead wire construction using the present invention.

[Explanation of symbols]

 1 Overhead Cable Twisting Device 2 Support Base 3 Rotating Plate 4 Rotating Plate Rotating Means 5 Cable Insertion Port 6 Grasping Frame 7 Energizing Means 22 Utility Pole 27 Overhead Cable

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tomoyuki Otani 5-1-1 Hidakacho, Hitachi City, Ibaraki Prefecture Hitachi Cable Ltd. Hidaka Plant (72) Inventor Akira Shoji 5 Hidakacho, Hitachi City, Ibaraki Prefecture 1-1-1 Hitachi Cable Co., Ltd. Hidaka Factory

Claims (2)

[Claims] 1. An overhead wire cable twisting device for inserting a twist into an overhead wire cable when a cable is installed on a utility pole or the like, and a support base detachably attached to the utility pole or the like, and the support base. A turntable for rotatably supported by the cable and inserting and holding the cable, and a rotation for inserting a twist into the cable to be inserted by applying a rotational force from the ground portion to the turntable. An overhead wire cable twisting device comprising: a board rotating means. 2. The grip, which has a cable insertion opening at its axial center, and which is combined in a grid pattern for gripping the outer peripheral portion of the cable inserted through the cable insertion opening. 2. An overhead wire cable twisting device according to claim 1, further comprising urging means for urging the cables inward in a radial direction of the cable having the frames inserted therein. .