JPH0441689Y2 - - Google Patents

Description

[Detailed description of the invention] (1) Industrial application field The present invention relates to a cable support device that holds a plurality of cables, etc., drawn out from a transformer etc. in the air when performing bypass construction etc.

(2) Conventional technology A cable support device that holds multiple cables, etc., drawn out by a transformer, etc., in the air when performing bypass construction, etc., uses a single roller that connects multiple cables, etc. at once as an arm. Conventionally, there have been known devices that are rotatably attached to, etc.

(3) Problems that the invention aims to solve However, since conventional cable support devices wrap multiple cables all at once on one roller,
When cables come into contact with each other, such as when a cable with a large amount of current is spanned, there is a problem that heat is generated from the cable and the cable sheath of the cable that comes into contact with the cable that generates this heat is damaged. Also, when adjusting the slack of multiple cables that are stretched around a roller, if you try to adjust one cable, the roller will rotate as the cable is adjusted, and the other cables will rotate. Since the slackness of the cables also changes at the same time, there is a problem in that it takes time to adjust the slackness of each cable one by one.

(4) Means for Solving the Problems In order to solve the above problems, the present invention provides a cable support device that holds a plurality of cables, etc. in the air, with an arm that is swingably provided in a horizontal plane. , a shaft mounted horizontally on both left and right sides of this arm, a plurality of sheaves independently rotatably mounted on this shaft, and a plurality of sheaves mounted on the arm so as to swing to open and close. The sheave is equipped with a roller that prevents cables, etc. that are stretched over the sheave from coming off the sheave.

(5) Effect With the above configuration, when holding multiple cables in the air, the rollers are swung open to separate them from the sheaves, and in this state, the cables to be held in the air are wrapped around each sheave, respectively. After this,
Swing the roller again to close it and prevent the cables that have been wrapped around each sheave from coming off the sheave.
Then, adjust the slack for each cable.

(6) Examples Examples of the present invention will be described below with reference to the drawings.

As shown in FIG. 3, the transformation work vehicle is equipped with a transformer 3 on the front side of a loading platform 2 of a truck 1, which is a vehicle that can travel, and a primary cable and a secondary cable on the rear side of the loading platform 2. A cable payout and take-up device 4 is provided with a cable drum 41 around which the next cable and the like are wound. A telescopic boom 5 is vertically erected, and a cable support device 6 is attached to the upper surface of the telescopic boom 5 to hold a primary cable and a secondary cable, one end of which is connected to the transformer 3, in the air. .

As shown in FIGS. 1 and 2, in the cable support device 6, the base end of an arm 8 is attached to a shaft 7 vertically erected on the upper surface of the telescoping boom 5 so as to be swingable in a horizontal plane. The arm 8 is fixed to the upper end of the telescopic boom 5 by a fixing device 10, and a shaft 9 is attached to the tip of the arm 8 passing through the arm 8 so as to project horizontally from the left and right side surfaces of the arm 8. 8 There are 5 sheaves 11 on the part that protrudes to the left.
are each independently rotatably mounted, and the shaft 9
Six sheaves 12 are independently rotatably attached to the rightward protruding portion of the arm 8.
Frames 13 are attached to both ends of the shaft 9 to prevent the sheaves 11 and 12 attached to both sides of the shaft 9 from coming off the shaft, and the arms 8
One end of rollers 14 is attached to the left and right sides of the upper surface so as to swing to open and close, and these rollers 14 are closed during work and storage, etc., so that each sheave 1
Each sheave 11,
12 is prevented from coming off the sheaves, and when the cables and the like are stretched over each sheave 11 and 12, they are swung open and separated from each sheave 11 and 12. In addition, one end of rollers 15 is attached to the left and right sides of the lower surface of the arm 8, respectively, so as to swing to open and close, and these rollers 15 are closed during work and storage, and are pivoted in front of each sheave 11, 12. 9 and each sheave 1 is fixed to the frame 13 at its tip.
1, 12 from coming off the sheave.
2, etc., it is swung open and separated from each sheave 11, 12.

With the above configuration, when performing voltage transformation work using a transformation work vehicle, the cable feeding and winding device 4
The primary cable 16 and the secondary cable 17 wound around the cable drum 41 are fed out, the base ends of the primary cable 16 and the secondary cable 17 are connected to the transformer 3, and these cables are connected to the cable drum 41. The rollers 14 and 15 of the support device 6 are swung open so as to be separated from each sheave 11 and 12, and then passed over each sheave 11 and 12, and then the rollers 14 and 15 are swung again to close it. , the tips of the sheaves 11 and 1 are fixed to the frame 13, respectively.
To prevent each cable stretched over 2 from coming off from sheaves 11 and 12. Next, the primary cable 1
6 is connected to the high-voltage wire on the high-voltage power supply side, and the tip of the secondary cable 17 is connected to the low-voltage wire, and in this state, the telescopic boom 5 is extended to move the cable support device 6 to an arbitrary height. Then, the slackness of each of the primary cable 16 and secondary cable 17 is adjusted to give each cable an appropriate slackness. At this time, each cable has separate sheaves 11 and 12.
The slack of each cable can be easily adjusted.

(7) Effects of the invention As described above, in the present invention, multiple cables are held in the air by multiple sheaves that are independently rotatably attached to both sides of the arm, so that the cables do not come into contact with each other. Moreover, since the cables are routed one by one to each sheave, a cable support device is provided that can easily adjust the slack of each cable, and the present invention improves cable support work. Effective for improving efficiency.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a side view of a cable support device, FIG. 2 is a plan view of the cable support device, and FIG. 3 is a side view of a transformer work vehicle. 6... Cable support device, 8... Arm, 9...
...Shaft, 11, 12... Sheave, 14, 15... Roller.

Claims (1)

[Scope of utility model registration request] A cable support device that holds multiple cables, etc. in the air includes an arm that is swingable in a horizontal plane, a shaft that is attached horizontally to both the left and right sides of this arm, and that each rotates independently on this shaft. A cable characterized by comprising a plurality of sheaves that are freely attached, and a roller that is attached to an arm so as to swing to open and close, and that prevents a cable, etc. stretched over the sheaves from coming off the sheaves. Support device.