JPH0757050B2 - Fixed automatic release type electric wire support and conveyance wire extension method using the same - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a supporting device connected to a carrying device used for carrying a wire drawing method for supporting an electric wire. In particular, the electric wire can be carried in a fixed state during carrying, and the carrying is completed. The present invention relates to a fixed automatic release type electric wire support device that can automatically release the fixed state after recovery and a transport wire extension method using the same.

[0002]

2. Description of the Related Art As a conventional supporting device, for example, one disclosed in Japanese Patent Application Laid-Open No. 2-250606 or Japanese Patent Application No.
-162698 and the like. JP-A-2-
The supporter (carrier) of No. 250606 is capable of automatically opening the electric wire after the completion of transportation, and has a feature that it is easy to perform the work of collecting the carrier and the supporter. However, since the electric wire cannot be fixed during transportation, there is a risk that a load concentration phenomenon may occur at a steeply sloping portion that adversely affects the durability of the electric wire, and the electric wire that also adversely affects the durability of the electric wire. Is insufficient in that it cannot prevent the rotation of the. In this respect, Japanese Patent Application No. 1-162
The supporter (carrier) of No. 698 can prevent the load concentration phenomenon at the steeply inclined portion, but this is not sufficient in terms of preventing the rotation of the electric wire.

[0003]

Therefore, according to the present invention, it is possible to fix the electric wire so as to surely prevent the rotation of the electric wire during the conveyance and the concentration phenomenon of the load at the steep slope portion, and after the completion of the conveyance. It is an object of the present invention to provide a fixed automatic release type electric wire support that can easily perform automatic opening of the fixing in the above, and a conveyance wire extension method using the same.

[0004]

Specifically, a suspending portion for suspending on a carrying device, a pair of front and rear pulling arms connected to the suspending portion, one end of each of which is connected to the tip of the pulling arm. At the same time, the intermediate portion supports a pair of front and rear levers rotatably supported by a rotating shaft, urging means for urging each lever, a pressing body connected to the other ends of both levers, and an electric wire. And a pair of levers rotate when a load is applied to the hanging portion, and the pressing body moves in a direction orthogonal to the electric wire on the support body to move the electric wire on the support body. While pressing and fixing to the support body, when the load of the hanging part is released, the pair of levers rotate in the opposite direction to the above by the biasing force of the biasing means, so that the pressing body separates from the wire. Provide a fixed automatic release type electric wire support that releases the electric wire Such a fixed automatic release type electric wire support device is used by connecting it to the carry device with a hanging rope, and the electric wire placed on the support is pressed and fixed by the pressing body during transfer, and then the transfer ends. After that, by providing the electric wire temporarily and loosening the hanging rope, the electric wire is automatically released from the pressed / fixed state, and the carrying device and the supporting device are recovered.

[0005]

[Operation] In this fixed automatic release type electric wire holder, the pressing body connected to the pair of front and rear levers presses and fixes the electric wire by the lever's pulsation. Pivoting of the lever for that purpose is performed by the load of the electric wire applied by the electric wire being placed on the support body being transmitted to the lever via the pulling arm. Therefore, if the wire is temporarily raised and the hanging rope is loosened to release the load on the wire, the lever returns by the biasing means, and the pressing / fixing of the wire is automatically released, and the carrier and the supporter can be recovered. Like

[0006]

Embodiments of the present invention will be described below. The fixed automatic release type electric wire support 1 according to the present invention is shown in FIGS.
As shown in FIG. 2, the suspension part 2, the pair of front and rear pulling arms 3,
3, a pair of front and rear levers 4, 4, a pair of front and rear biasing means 5,
5, the pressing body 6, the support 7, and the four guide rollers 8,
.. are assembled to the pair of left and right frame plates 9, 9.

As shown in FIG. 4, the suspending section 2 includes a carrier 2
7 for hanging via a hanging rope 11,
U ring 13 that combines detachable bolts and nuts 12
It is formed in.

The pulling arms 3 are for transmitting a force required for the lever 4 to oscillate, and the front and rear pairs are symmetrically provided. One end of each of the pulling arms 3 rotates with respect to the U ring 13 as shown by an arrow A. It is connected so as to be able to
The other end of each is also connected to each lever 4 so as to be rotatable as shown by arrow B.

The lever 4 is for pushing down the pressing body 6 by a pulsating motion as shown by the arrow C, and the pair of front and rear is symmetrically provided like the pulling arm 3, and as described above, the pulling arm is provided. The portion to which 3 is connected serves as a force point, the intermediate portion rotatably supported by the rotating shaft 14 serves as a fulcrum, and the connecting portion for the pressing body 6 connected as described later serves as an action point. Has been Further, both levers 4 and 4 are bent in a "V" shape with a fulcrum portion as a boundary so that both levers 4 and 4 operate in a well-balanced manner. Biasing means 5
Is for urging the lever 4 in the direction opposite to the direction in which the pressing body 6 is pushed down, and a tension coil spring is used and is provided for each lever 4.

The pressing member 6 is for pressing the electric wire W between the supporting member 7 and the fixing member by being pushed down by the lever 4 as described above, and as shown in FIG. Is held by a U-shaped frame member 17, and a pair of bracket pieces 18, 18 are projected on the upper surface of the frame member 17, and a connecting shaft 19 is inserted between the bracket pieces 18, 18 to connect the connecting bracket 20. Is formed. The pressing body 6 can be moved up and down by being guided by a pair of front and rear guide holes 21, 21 formed in each frame plate 9 in the shape of an elongated hole.
When the levers 4 and 4 are connected in such a manner that they can be rotated, they can be moved up and down by performing the above-mentioned oscillating motion. More specifically, when an electric wire W is placed on a support body 7 described later, both tension arms 3 and 3 are pulled upward by the load of the electric wire W to narrow the spread of the C-shape. Force is applied to the lever 4 by
When the lever 4 is in a state shown by an imaginary line in FIG. 1, and when the electric wire W is temporarily lifted and its load is removed as described later, the urging force of the urging means 5 causes the lever 4 to return to the state shown by a solid line. The pressing body 6 moves up and down in response to the lever 4 being moved.

The support 7 is for supporting the electric wire W thereon, and is formed by providing a pair of rollers 22 in front and rear in order to facilitate relative movement with respect to the electric wire W as shown by an arrow G. There is. Each roller 22 can be opened and closed by rotating as shown by an arrow H (FIG. 2) with one end as a fulcrum, and the electric wire W can be put in and taken out by this opening and closing. . Guide roller 8
Is for preventing the electric wire W from being damaged by touching the corners of the frame plate 9 and the like, and is attached to the front and rear of each frame plate 9.

The wire drawing method using the fixed automatic release type electric wire support 1 will be described below. The following examples relate to a re-installation method in which the existing electric wire is removed and then the new electric wire is extended. However, it is assumed that the fixed automatic release type electric wire support 1 is used for extending the new electric wire only. It is easy for those skilled in the art to do this.

Deployment of pilot rope (FIG. 6) Using the existing electric wire Wa as a supporting wire and using a single wheel suspension wheel 23,
The pilot rope P is deployed by the self-propelled machine 24.

Development of support ropes and the like (FIG. 7) A connecting rope R and a support rope S, which are a series of twin suspension wagons 25, 25, ... Are connected to a pilot rope P, and the pilot rope P is connected to an engine field E. The support rope S is unfolded in the state of being supported by the twin suspension wagon 25 together with the unfolding of the connection rope R.

Fixation of support ropes, etc. (FIG. 8) An intermediate supporter 26 is attached to each steel tower T, and both ends of the support rope S are respectively supported in the drum field D and the engine field E while being supported by the intermediate supporter 26. Fix with. Next, the existing electric wire Wa is removed from the steel tower and temporarily fixed, and the lower wire of the twin suspension wagon 25 is supported by the existing electric wire Wa.

Deploying the carrier (FIG. 9) Using the support rope S and the existing electric wire Wa, the double suspension wagon 2
5, 25, ... are collected, and transporters 27, 2 which are connected to the connecting rope R in a daisy chain like the double hanging wheel 25.
Run 7 ... on the support rope S and deploy. A gripping type supporter 28 as shown in Japanese Patent Laid-Open No. 2-250613 is connected to the carrying device 27 via a hanging rope 11, and the supporting device 28 is guided by an existing electric wire Wa and developed together with the carrying device 27. To be done.

Removal of the existing electric wire (FIGS. 10 and 11) The existing electric wire Wa from which the above-mentioned temporary fixing is released is held by the supporter 28, and then the connecting rope R is wound up at the engine field E to convey the existing electric wire Wa. Then remove it. Regarding the structure in which the supporter 28 holds the existing electric wire Wa in such a manner that the existing electric wire Wa will not fall even if it is cut in the middle, it is disclosed in Japanese Patent Laid-Open No. 2-2506.
Since it is described in detail in No. 13, its explanation is omitted here.

Extension of new electric wire (FIG. 11) A new electric wire Wn is connected to the rear end of the existing electric wire Wa, and the new electric wire Wn is supported by the fixed automatic release type electric wire support 1 in the above-mentioned pressing / fixing state. Let it be transported.

Temporary lifting of newly installed electric wire and collection of carriers (Fig. 12)
13 and FIG. 13) When the transportation is completed, the new electric wire Wn is temporarily lifted up, whereby the pressing / fixing state is released as described above, and the fixed automatic release type electric wire support 1 is freed from the new electric wire Wn. After that, while the connecting rope R is being wound from the drum field D, the carry device 27 and the fixed automatic release type electric wire support device 1 are collected for each steel tower T. At this time, in the portion where the carrier 27 and the fixed automatic release type electric wire support 1 are removed, a twin suspension wagon 25
To prevent the connecting rope R from loosening.

Collection of Support Rope ((FIGS. 13 and 14)) A double hanging wagon 25 is connected from the side of the engine field E to the connecting rope R that is wound up when collecting the above-mentioned carrier etc. Then, while fixing the new electric wire Wn to the steel tower T, the support rope S is removed, and while the support rope S is supported by the twin suspension wagon 25 with the new electric wire Wn as the support wire, the drum field D and the engine field E side are supported. Collect each.

[0021]

As described above, according to the fixed automatic release type electric wire supporter and the conveying wire-drawing method using the same according to the present invention, the electric wire is pressed and fixed by the pressing body by the load of the electric wire to be conveyed, and the electric wire is conveyed. Therefore, it is possible to effectively prevent the rotation of the electric wire, which adversely affects the durability of the electric wire, and the concentration of the load on the steeply inclined portion, and it is possible to perform a higher quality wire extension.
Moreover, since the pressed / fixed state can be easily released only by temporarily raising the electric wire, there is an effect that the work can be greatly rationalized.

[0022]

[Brief description of drawings]

FIG. 1 is a side view of a fixed automatic release type electric wire holder.

FIG. 2 is a side view of the fixed automatic release type electric wire support viewed from the Z direction shown by the arrow in FIG.

FIG. 3 is a perspective view of a pressing body.

FIG. 4 is a side view of the fixed automatic release type electric wire support in a state of being suspended in a carrier.

5 is a side view of the carrier seen from the arrow Y direction in FIG. 4. FIG.

[Fig. 6]

FIG. 14 is an explanatory diagram sequentially showing the procedure of the conveyance wire-drawing method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fixed automatic release type electric wire support 2 Suspension part 3 Pulling arm 4 Lever 5 Biasing means 6 Pressing body 7 Supporting body 11 Hanging rope 14 Rotating shaft

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kaoru Otonashi 2-9-18 Honjo Higashi, Kita-ku, Osaka City, Osaka Prefecture Kanden Kogyo Co., Ltd. (72) Kazuya Ueyama 2 Honjo Higashi, Kita-ku, Osaka City, Osaka Prefecture Inc. 9-18 Kanden Kogyo Co., Ltd. (72) Inventor Shozo Tanaka 3-9-8 Kyomachibori, Nishi-ku, Osaka-shi, Osaka Miki Honnai Inc. (72) Inventor Masayasu Imai 3-chome, Horikiri, Katsushika-ku, Tokyo 27 No. 12 In stock company Yasuda Works (72) Inventor Toshio Kaido 3-27-12 Horikiri, Katsushika-ku, Tokyo Inside stock company Yasuda Works (72) Hideo Akai 3-27-12 Horikiri, Katsushika-ku, Tokyo No. In Yasuda Manufacturing Co., Ltd. (56) Reference JP-A-2-246712 (JP, A)

Claims (2)

[Claims] 1. A suspending part for suspending to a carrier, a pair of front and rear pulling arms connected to the suspending part, one end of each of which is connected to the tip of the pulling arm, and a middle part is a rotating shaft. A pair of front and rear levers rotatably supported, an urging means for urging each lever, a pressing body connected to the other ends of both levers, and a support body for supporting the electric wire.
When a load is applied to the hanging part, the pair of levers rotate,
Along with this, in the direction in which the pressing body is orthogonal to the wire on the support,
Move and press the wire on the support to the support to fix it
When the load on the hanging part is released,
The force causes the pair of levers to rotate in the opposite direction to the above
Make sure that the pressing body separates from the electric wire to release the fixation of the electric wire.
Fixed automatic release type wire supporting device ing to. 2. An electric wire is supported and conveyed by a supporting device connected to these carrying devices while moving a plurality of carrying devices connected by a connecting rope at predetermined intervals on a supporting rope stretched in advance. In the transportation wire extension method, the fixed automatic release type electric wire support of claim 1 is used as a supporter by connecting it to a carrier by a hanging rope, and the electric wire placed on the support is pressed and fixed by a pressing body during transportation. After the transfer is completed, the wire is temporarily raised and the hanging rope is loosened to automatically release the pressed / fixed state of the wire and to collect the carrier and the supporter. Conveying wire extension method characterized by