JPH036089Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a rope recovery machine for electrical work.

For example, when replacing a power transmission line with a new line, a guide rope is stretched along the existing line, and a metal wheel attached to the guide rope is used to replace the old line with the new line. After the replacement of the old line with the new line is completed, the guide rope must be recovered. This invention relates to a recovery device used in such cases.

This idea was developed when recovering ropes like the one above.
One end of a rope stretched parallel to the newly installed wire is hooked to the main body that runs along the newly installed wire, and the wire is gradually drawn and recovered while passing along the opposite side of the rope.

What is important here is that the main body, to which one end of the rope is latched, must be run on the wire with appropriate braking.
This is because if the main body runs lightly on the wire, the wire becomes self-propelled at the dip part (slack part), and the rope cannot keep up with the rope, causing the wire (live wire) below to sag. This is because they come into contact with people such as

This invention was proposed taking these points into consideration, and the purpose is to provide a new rope recovery machine that can run while applying arbitrary frictional resistance to the wire. It is something. Another object of this invention is to provide a rope recovery machine that can be used freely for wires with a large or thin diameter.

That is, the electrical work rope recovery machine of this invention has a plurality of guide rollers each having a guide groove for running on the wire, and a hook for the rope to be recovered, and the guide roller is connected to the wire. a roller holding frame that holds the wire in the length direction; a tire that has a wide contact surface that is pressed against the lower side of the wire; Adjusting the vertical position of a tire holding frame that is orthogonally connected and has a tire hanging part formed in its lower part that can be opened and closed for hanging the tire, and the roller holding frame and the tire holding frame. It is characterized by comprising a vertical adjustment member.

The explanation will be given below according to the embodiment shown in the attached drawings. Fig. 1 is an overall side view of a rope collecting machine showing an embodiment of this invention, Fig. 2 is a front view thereof, and Fig. 3 is a roller holding frame. FIG.

As shown in the figure, the rope recovery machine 10 of this invention
The guide roller 20 and roller holding frame 30
, a tire 40 , a tire holding frame 50 , and a vertical adjustment member 70 .

The guide roller 20 is provided with a deep guide groove 21 for running on the wire W, and is rotatably attached to the front and rear of a roller holding frame 30, which will be described below, as shown in the figure.

As shown in FIG. 3, the roller holding frame 30 connects left and right side plates 31, 31 with connecting members 32, 3.
2, and holds the guide rollers 20, 20 back and forth in the length direction of the wire W. A hooking portion 39 such as a hole or a hook for hooking the recovered rope R is formed at an appropriate location on the roller holding frame 30.

The tire 40 is pressed against the lower side of the wire W and has a wide contact surface 41 for contacting the wire. The tire 40 of the example is a pneumatic tire for carts with an outer diameter of 259 mm, a total width of 120 mm, and a tread width of 80 mm.
I used the one from

The tire holding frame 50 includes left and right vertical frames 51 and 52, a horizontal frame 53 that connects the vertical frames at their upper portions, and an opening in an inverted U-shaped main body 54 formed by the vertical frames and the horizontal frame. The tire suspension part 60 is formed to be openable and closable for suspending the tire.

Vertical frame 5 of tire holding frame main body 54
1 and 52 are side plates 3 of the roller holding frame 30;
By being inserted into the cylindrical members 35, 35 fixed vertically to the substantially central portions of the outer sides of 1, 31,
The entire tire holding frame 50 is orthogonally connected to the roller holding frame 30 so as to be vertically movable.

The tire hanging part 60 at the lower part of the tire holding frame 50 has two parts that hold the rotating shaft 45 of the tire 60.
One of the two bearing members 61 and 62 is coupled to the tip of the vertical frame 51 of the main body by a hinge portion 63, and the other 62 is engaged to the tip of the other vertical frame 52 by a lock pin 64. Then,
The main body portion 54 is configured to be openable and closable. The reason why the tire suspension part 60 is configured to be openable and closable is to insert the wire W into the tire holding frame 50 as shown by the chain line in FIG. Note that the lock pin 64 is attached to the vertical frame 5 by the biasing force of the spring 65.
The pin tip is held at two ends of the bearing member 62, and is engaged or released by moving the pin end into or out of the hole 66 of the bearing member 62, as shown by the chain line in FIG.

The vertical adjustment member 70 is connected to the roller holding frame 3 orthogonally in a vertically movable relationship.
0 and the tire holding frame 50 are adjusted. This vertical adjustment member 70 is
As in the embodiment, it is convenient to use the threaded rod 71 that is screwed into the threaded groove 56 of the horizontal frame 52 of the main body of the tire holding frame 50 and abuts on the receiving part 38 of the connecting member 37 of the roller holding frame 30. . Note that the reference numeral 72 is a spring.

In the rope recovery machine of this invention configured as above, the tire hanging part 60 is opened and the wire W is inserted into the tire holding frame 50 as shown in FIG. ). Then, guide rollers 20, 20 are set above the wire W. Next, the tire suspension part 60 is closed and locked, and the vertical positions of the roller holding frame 30 and the tire holding frame 50 are adjusted using the threaded rod 71 of the vertical adjustment member.

In this case, as can be understood from FIGS. 1 and 2, the two guide rollers 20, 20 at the front and rear are used from above the wire W, and the center tire 40 is used from the bottom of the wire W. The device is installed so that the wire W is pinched and tightened. Needless to say, the strength of clamping the wire W is proportional to the amount of friction generated when the wire W runs on the machine.

Rope hook part 39 of this machine attached to wire W
By hooking one end of the rope R to be recovered and pulling the rope from the other side, the machine gradually runs along the wire with a moderate frictional force, and the rope is pulled up, i.e. Collection will take place.

According to the rope recovery machine of this invention, as shown above, it has become possible to run the wire while applying arbitrary frictional resistance. In particular, with this invention, a tire with a wide contact surface was placed on the underside of the wire to make pressure contact.
Compared to a metal pulley or the like, the tire provides superior slip resistance between the tire and the wire, providing a braking force when descending from the dip of the wire and a high gripping force when ascending. It is extremely advantageous as a recovery machine that runs on this type of electric wire.

In addition, in the collecting machine of this invention, the wire is held tightly between the guide roller and the tire by adjusting the vertical positions of the roller holding frame and the tire holding frame. It is also highly practical as it can be easily adapted to any size and can be used for anything.

[Brief explanation of the drawing]

FIG. 1 is an overall side view of a rope recovery machine showing an embodiment of this invention, FIG. 2 is a front view thereof, and FIG. 3 is a perspective view of a roller holding frame. 20... Guide roller, 21... Guide groove, 30
...Roller holding frame, 39...Rope hanging part, 40...Tire, 41...Contact surface, 50...
Tire holding frame, 60...Tire hanging part, 7
0... Vertical adjustment member, W... Wire, R... Rope.

Claims (1)

[Claims for Utility Model Registration] A plurality of guide rollers 20 provided with guide grooves 21 for traveling on the wire W, and a hooking portion 39 for the recovered rope R, and the guide rollers are connected to the wire W. a roller holding frame 30 that holds the wire in the longitudinal direction; a tire 40 that has a wide contact surface 41 that is pressed against the lower side of the wire; a tire holding frame 50 that is orthogonally connected at the center and has a tire hanging part 60 that can be opened and closed for hanging the tire formed at the lower part; the roller holding frame and the tire holding frame; A rope collection machine for electrical work, comprising: a vertical adjustment member 70 for adjusting the vertical position of the rope.