JP3471677B2 - Cable hanger - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspension line suspended between adjacent support structures,
It belongs to the technical field relating to a cable hanger that supports a cable along the line for suspension.

[0002]

2. Description of the Related Art Generally, in order to lay a cable between supporting structures such as electric poles, metal poles, buildings, etc., first, a cable for supporting the cable is stretched between the supporting structures. Need to be kept. For that purpose, first, a supporting wire for a gold car such as a rope is stretched between the supporting structures, and a plurality of gold cars shown in FIG. 5, for example, are hung on the supporting wire for the gold car and the supporting structure. It is carried out by lowering it and moving it in the lengthwise direction through the above-mentioned trolley wire in each gold car. The supporting wire for the gold wheel and the gold wheel are detached after the wire for the hoistway is stretched or after the cable is laid as described later.

A cable hanger is not suspended from the above-mentioned messenger wire at the time of laying the messenger wire, but is attached after the messenger wire is stretched. That is, in general, first, a plurality of gold wheels similar to the above are suspended on a laid cable, and then a cable pulling rope is pulled into each gold wire. Then, the cable connected to one end of the cable pulling rope is pulled by the cable pulling rope to be pulled into each of the trolley wheels, and then the trolley wheels are removed one by one by riding on a bucket car, for example, as shown in FIG. The cable hangers 101 are attached one by one to the catenary line 102 at predetermined intervals, and the cables 113 are supported by the cable hangers 101.

In order to additionally install a new cable 113 ', the gold wheel is hung on the suspension wire 102 or a support wire for a railcar stretched to the side of the suspension wire 102. In the same manner as above, a new cable 113 'is pulled through each of the gold wheels through the cable pulling rope. Then, the cable hanger 101 is removed from the messenger wire 102, and the first cable 1 is laid.
13 and the new cable 113 'are again attached to the catenary line 102. At this time,
If the cable hanger 101 is small and it is difficult to install it, a new large cable hanger 101 is attached to the suspension line 102, and both cables 113 and 113 'are attached.
To support.

[0005]

However, in the cable hanger having the above-described structure, it is necessary to remove and attach the cables one by one when additional cables are laid, which requires time and labor. In particular, when the cable hanger is attached to the catenary line so that it cannot be easily removed at the time of the previous cable installation, the work of removing it in the air and securely attaching it again becomes very troublesome.

The present invention has been made in view of the above problems, and an object of the present invention is to improve the structure of a cable hanger when additionally laying a cable between adjacent support structures. This makes it possible to perform additional cable installation very easily without removing the cable hanger from the catenary line and to improve the efficiency of the work.

[0007]

In order to achieve the above object, according to the present invention, a cable hanger is rotated around a horizontal axis that is substantially vertical to a cable for suspending and pulling a cable in and out of a cable supporting portion. Configured to be able to.

[0008] Specifically, in the invention of claim 1, a cable hanger for suspending a cable for suspension extending between adjacent support structures and supporting the cable along the cable for suspension. Target.

[0009] A substantially annular cable support portion, which is located substantially vertically below the messenger line and has an open upper portion, is provided at both ends of the opening of the cable support portion.
A first mounting portion and a second mounting portion that are mounted on the trolley wire in a state of being separated from each other in the length direction of the trolley wire, and the first mounting portion is the trolley wire. With respect to the messenger wire, the second mounting portion is attached so as to be rotatable about a horizontal axis that is substantially perpendicular to the messenger line, and the first mounting portion is rotated about the horizontal axis. , The first wire is movable relative to a position attached to the messenger wire and an upper distant position .
When the mounting part of is rotated about the horizontal axis, the second
When the mounting part has moved to a position above the catenary line
The cable from between the first and second attachment parts.
It shall be configured so that it can be inserted into the support portion .

With the above structure, when the cable is additionally laid, the first mounting portion is rotated about the horizontal axis to move the second mounting portion to a position above the catenary line.
The cable can be inserted into the cable supporting portion between the first and second mounting portions or the opening of the cable supporting portion, and further, after the cable is inserted, the second mounting portion moves downward due to the weight of the cable hanger. It will be attached to the cable line. As a result, the work of removing the cable hanger from the catenary line and reattaching it as in the past is no longer necessary, and it is possible to lay additional cables with extremely simple work, which greatly improves the work efficiency. You can In addition, even if it is difficult to lay additional cables due to the small size of the cable support, you can replace the cable hangers one by one with another large one. Additional laying can be performed in the same manner. further,
Even if the cable is already laid by being supported by a conventional cable hanger, the conventional cable hanger can be replaced with that of the present invention.

According to a second aspect of the present invention, in the first aspect of the present invention, the first attaching portion is attached in a state in which relative movement is restricted with respect to the catenary line in the longitudinal direction of the catenary line. It is supposed to be.

According to the present invention, the cable hanger can be previously hung on the suspension line before the suspension line is stretched between the support structures when the cable is first laid. That is, when the cable hanger is brought into contact with the gold wheel when it is moved through the catenary line supported in the gold wheel supported by the support structure or in the gold wheel supported by the gold wire support wire stretched in advance between the support structures. It is possible to easily pass through the inside of the railroad car while rotating around a horizontal axis that is substantially vertical to the catenary line without shifting in the length direction of the catenary line. Further, the rotated cable hanger rotates by its own weight around the horizontal axis to return to the original state. Therefore, the messenger wire can be easily stretched between the supporting structures by almost the same method as the conventional method, and the cable hangers are hung at a predetermined interval at the time of completion. Then, at the same time as straddling the catenary line, if some kind of guide member capable of pulling the cable pulling rope is pulled through the cable support portion, the guide member pulls the cable pulling rope through the cable support portion. By pulling the cable with the cable pulling rope and pulling the cable through the cable supporting portion, the cable can be easily laid. As a result, it is not necessary to put the cable in the cable support portion in the air both at the time of initial installation and at the time of additional installation. Therefore, the cable can be installed more easily and safely.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show a state in which a cable hanger 1 according to an embodiment of the present invention is stretched between adjacent support structures (not shown) and hung from a suspension line 2. The messenger wire 2 is formed by twisting seven steel wires 2a, 2a, ... The support structure is, for example, a utility pole, a metal pole, a building, or the like.

The cable hanger 1 supports the cable 13 along the catenary line 2 and, as will be described later, immediately before the catenary line 2 is stretched between the support structures. It is adapted to be hung at a predetermined interval (for example, 50 cm interval) in the length direction of the catenary line 2. The cable hanger 1 includes a substantially annular cable support portion 1a which is positioned substantially vertically below the messenger wire 2 and has an open upper portion, and both ends of the opening of the cable support portion 1a (the messenger wire 2). Are provided on the left and right sides of the suspension line 2 (on the left and right sides of FIG. 2, respectively) that are offset from each other in the length direction of the It is equipped with the 1st and 2nd attachment parts 1b and 1c which are attached in the state which mutually separated in the length direction of the utility line 2, and this cable support part 1a and 1st and 2nd attachment parts 1b and 1c are one. It is composed of a wire having a circular cross section. The cable support portion 1a is
It is formed in a size capable of supporting a plurality of cables 13. The portion of the wire corresponding to the cable supporting portion 1a is covered with a cover member 1d made of polyvinyl chloride (PVC).

The first mounting portion 1b is connected to one of the end portions on both sides of the opening of the cable supporting portion 1a (right side in FIG. 4) and extends substantially vertically, and a first vertical portion 1e.
A horizontal portion 1f that is connected to the upper end of the vertical portion 1e and extends in a horizontal direction substantially above the suspension wire 2 just above the suspension wire 2 and the first vertical portion 1 of the horizontal portion 1f.
e and a second vertical portion 1g that is connected to the end portion on the opposite side and extends substantially vertically. The first and second vertical parts 1
e and 1g are located on both the left and right sides of the catenary line 2, and the horizontal distance between the first and second vertical portions 1e and 1g increases downward.

The first attachment portion 1b is attached to the suspension line 2 so as to be rotatable about a horizontal axis substantially perpendicular to the suspension line 2. In particular,
The first mounting portion 1b is mounted on the catenary line 2 via a mounting bracket 5, and the mounting bracket 5 is made of a plate material and is mounted so as to be rotatable around the catenary line 2. It has a substantially annular mounting portion 5a. This mounting part 5
A rotation support portion 5c is formed at an end portion of the upper surface portion of a on the side of the second mounting portion 1c by a bent portion 5b bent in an arc shape and the upper surface portion of the mounting portion 5a, and the rotation support portion 5c.
The horizontal portion 1f of the first mounting portion 1b is rotatably fitted therein. That is, the horizontal portion 1f corresponds to the horizontal axis. The tip portion of the bent portion 5b is the horizontal portion 1f.
Is in contact with the upper surface of the mounting portion 5a so as not to come off from the rotation support portion 5c. In addition, the bent portion 5b is formed from the end surface of the mounting portion 5a on the second mounting portion 1c side to the second mounting portion 1c.
It is designed so that it does not protrude to the c side.
b can be smoothly rotated around the catenary line 2 without hitting a movement restriction fitting 10 described later. The upper surface of the mounting portion 5a and the upper portions of both left and right side surfaces are substantially above the horizontal portion 1f and both vertical portions 1e, 1g of the first mounting portion 1b when viewed from the length direction of the catenary line 2. The first mounting portion 1b is mounted in such a manner that the relative movement of the first mounting portion 1b with respect to the catenary line 2 is restricted in the horizontal direction substantially perpendicular to the catenary line 2. Has been.

On the other hand, the second mounting portion 1c is mounted by being hooked on the catenary line 2, and is not movable downward and movable upward from this mounted state. That is, the second mounting portion 1c is rotated by the rotation of the first mounting portion 1b around the horizontal portion 1f.
It is configured to be movable between a position attached to the catenary line 2 and an upper distant position. Specifically, the second attachment portion 1c is formed in a hook shape, is connected to the other (left side in FIG. 4) of both end portions of the opening of the cable support portion 1a, and extends substantially vertically. The straight line portion 1h, an arcuate portion 1i connected to the upper end of the first straight line portion 1h, and straddling the upper side of the catenary line 2, and the arcuate portion 1i.
i has a second straight line portion 1j that is connected to the opposite end of the first straight line portion 1h and extends substantially vertically. The first and second straight line portions 1h and 1j are located on the left and right sides of the catenary line 2, respectively.
The horizontal distance between h and 1j increases downward.

In the above-mentioned suspension line 2, the mounting portions 5a of the mounting portion 5a of the mounting bracket 5 are arranged on both sides of the suspension line 2 in the length direction of the suspension line 2 with respect to the suspension line 2. The movement restricting metal fittings 10, 10 for restricting relative movement in the length direction are attached to both end surfaces in the length direction of the catenary line 2 of the mounting portion 5a with a slight gap therebetween. That is, the first mounting portion 1b is mounted in a state in which the relative movement of the first attachment portion 1b is restricted with respect to the suspension wire 2 in the length direction of the suspension wire 2. Each movement regulation metal fitting 1
0 is provided with a plate-shaped fitting portion 10a fitted around the outer circumference of the catenary wire 2. The fitting portion 10a is bent so as to form a tubular shape having a substantially pentagonal cross section (one side of the five sides of the pentagon does not exist due to the opening portion 10b) whose lower portion is opened (referred to as the opening portion 10b). , Has three corners 10c, 10c, ... At the upper portion of the outer peripheral surface and both left and right sides. Since each corner portion 10c projects more radially in the outer peripheral surface than the other portions, even if the radial thickness (plate thickness) of the fitting portion 2 is relatively small, each corner portion 10c is The portion 10c can prevent the mounting member 5 from moving over the fitting portion 2. The fitting portion 10a is made of a springy material such as spring steel, and the fitting portion 10a is fitted to the outer circumference of the catenary wire 2 by expanding the diameter of the fitting portion 10a (widening the opening 10b). It is configured to be worn.

When the fitting portions 10a are fitted to the outer circumference of the messenger wire 2 on both right and left sides of the messenger portion 10a, they are located on the outer periphery of the messenger wire 2. Locking claws 10d and 10d that bite between the two strands 2a and 2a are provided, respectively. Each of the locking claws 10d is formed integrally with the fitting portion 10a by bending a portion of the locking claw 10d, which is separated from the periphery except for one side portion, by the substantially U-shaped slit, and is bent at the one side portion. When the fitting portion 10a is fitted to the outer circumference of the catenary wire 2, the tip portion thereof is projected from the inner peripheral surface to the inner side, and is located between the strands 2a and 2a. Due to the elastic restoring force of the portion 10a, the element wires 2a and 2a are strongly bitten between them. In addition, both locking claws 10d and 10d have two strands 2a and 2a on the left and right sides of the catenary line 2 at their tip portions.
They are formed so as to be respectively located between them so as to be offset from each other in the length direction of the catenary line 2.

When viewed from the side of the fitting portion 10a (viewing from the base end portion to the tip end portion side of each locking claw 10d), the tip end portion of each locking claw 10d is a catenary line 2. On the other hand, each strand 2a on the outer peripheral portion of the catenary wire 2 is inclined with respect to the longitudinal direction of the catenary wire 2. As a result, the tips of the locking claws 10d are inclined with respect to the strands 2a on the outer peripheral portion of the suspension wire 2, and the fitting portion 10a with respect to the suspension wire 2. It is configured so that it cannot move relative to its length.
Further, the engaging claws 10d prevent the fitting portion 10a from rotating around the catenary line 2.

Below the mounting portion 5a of the mounting bracket 5,
A guide portion 5d that guides a guide member 4 having a substantially rectangular cross section that extends along the catenary line 2 so as to move along the catenary line 2 is integrally formed. This guide part 5
When viewed from the length direction of the guide member 4, d is formed so as to cover the periphery of the guide member 4 with the opening 5e in the lower part. As a result, the guide portion 5d guides the guide member 4 so as to relatively move along the messenger wire 2 in a state where the guide member 4 is vertically and horizontally restricted, and extends in the length direction of the guide member 4. It is supported in a state in which relative rotation is restricted around the shaft.

The guide member 4 is for pulling the cable 13 or the cable pulling rope 14 for pulling the cable 13 into the cable supporting portion 1a of the cable hanger 1, and is made of, for example, a belt-shaped elongated body. ing. The cable 1 is provided below one end of the guide member 4.
3 or a pulling hook 17 for pulling one end of the cable pulling rope 14 in a suspended state at an inward position of the cable supporting portion 1a (preferably at a position closer to the upper side in the vertical direction). (See FIG. 8). The tow hook 17 may be configured to be able to suspend the cable 13 or the cable tow rope 14 via the twisted metal object. And
When the guide member 4 pulls the cable 13 or the cable pulling rope 14, the pulling hook 17 passes through the opening 5e at the lower part of the guide portion 5d along the length direction of the catenary line 2. .

A method of laying the cable 13 using the cable hanger 1 having the above structure will be described. First,
A wire supporting wire 20 (see FIG. 6) such as a rope is stretched between supporting structures such as electric poles for laying the cable 13, and the wire supporting wire 20 and the supporting structure are shown in FIG. A plurality of gold wheels 21 shown in the figure are suspended at appropriate intervals. This gold wheel 21 is similar to that used conventionally, and has a guide roll 22 and two support plates 23, 23 that rotatably support the guide roll 22. The plates 23, 23 are fastened and fixed to each other by a nut 24 at the axial center of the guide roll 22 above the guide roll 22. A suspension hook 25 for suspending the gold wheel 21 on the gold wire support wire 20 is provided on the upper end portion of the one support plate 23. In some cases, instead of the suspension hook 25, the gold wheel 21 is suspended by sandwiching the gold wire support wire 20 between the support plates 23, 23.

On the other hand, the messenger wire 2 is wound around a drum (not shown) similar to the conventional one, and the guide member 4 is wound around another drum. Then, while pulling the tip ends of the catenary wire 2 and the guide member 4 at the same speed and pulling them out from each drum, the catenary wire 2 is attached to the catenary wire 2 immediately before being stretched between the support structures. The metal fitting 5, the movement restriction metal fitting 10, and the cable hanger 1 are attached. That is, first, the mounting portion 5a of the mounting member 5 is attached to the messenger wire 2, and the bent portion 5b is on the rear side of the upper surface of the mounting portion 5a in the moving direction of the messenger wire 2 (see
And the fitting portions 10a, 10a of the movement restricting metal fittings 10, 10 are fitted on both sides of the mounting portion 5a in the lengthwise direction of the catenary line 2, respectively. When the mounting portion 5a of the mounting bracket 5 is mounted, the lower portion of the mounting portion 5a is opened to the left and right sides when viewed from the lengthwise direction of the catenary line 2, and accordingly the guide portion 5d is also opened. It is opened on both the left and right sides and is sized so that the catenary line 2 and the guide member 4 can pass through. As a result, the messenger wire 2 can be fitted into the mounting portion 5a of the mounting member 5, and the guide member 4 can be fitted into the guide portion 5d. Then, the opening below the mounting portion 5a is closed and the opening 5e below the guide portion 5d is formed to have a predetermined size.
At this stage, the mounting portion 5a of the mounting bracket 5 is
The tip portion of the bent portion 5b of the upper surface portion is not in contact with the upper surface portion of the mounting portion 5a, but is directed substantially upward.

Next, with the first and second mounting portions 1b and 1c of the cable hanger 1 positioned on the left and right sides of the catenary line 2, the cable hanger 1 is lifted from the lower side of the catenary line 2. That is, the messenger wire 2 is allowed to enter the cable supporting portion 1a between the two mounting portions 1b and 1c or through the opening of the cable supporting portion 1a. Then, the both mounting portions 1
When b and 1c are located on the upper side of the catenary line 2, the cable hanger 1 is positioned so that the first mounting portion 1b is located on the front side in the moving direction of the catenary line 2 relative to the second mounting portion 1c. Rotate about 90 °. After that, the horizontal portion 1f of the first mounting portion 1b is fitted to the rotation support portion 5c of the mounting bracket 5, and the second mounting portion 1c is hooked on the catenary line 2. Then, the tip of the bent portion 5b on the upper surface of the mounting portion 5a of the mounting member 5 is brought into contact with the upper surface of the mounting portion 5a so that the horizontal portion 1f does not come off from the rotation support portion 5c. Installation to the catenary line 2 is completed.

Subsequently, while pulling the tip ends of the above-mentioned catenary wire 2 and guide member 4, the cable hanger 1,
The messenger wire 2 and the guide member 4 are stretched between the support structures so that the messenger wire 2 and the guide member 4 pass through the inside of the gold wheel 21 (the space surrounded by the guide roll 22 and the support plates 23, 23). I will pass it. At this time, how the cable hanger 1 passes through the gold wheel 21 will be described.
The catenary wire 2 moves in the lengthwise direction, and eventually, as shown in FIG. 6, the front end of the catenary wire 2 in the moving direction at the bottom of the mounting bracket 5 is the guide roll 2 of the gold wheel 21.
Abut 2. Then, if the tip portion of the catenary line 2 is continuously pulled as it is, the mounting bracket 5 is in a state in which relative movement of the catenary line 2 in the length direction is restricted by the pair of movement restricting brackets 10, 10. The front end portion in the moving direction of the catenary line 2 below the mounting bracket 5 rides on the upper side of the guide roll 22, and subsequently the guide portion 5d rides on the upper side of the guide roll 22 in the same manner. After that, the first mounting portion 1b
The lower end portion of the first vertical portion 1e of the above contacts the guide roll 22. Then, as shown in FIG. 7, the first mounting portion 1b rotates about the horizontal portion 1f (counterclockwise in FIG. 7) by about 90 °, and the second mounting portion 1b moves with the rotation of the second mounting portion 1b. The mounting portion 1c of the above is moved from the position attached to the catenary line 2 to a position above and away from the catenary line 2, and the cable support portion 1a for The guide roll 2 is in a state substantially along the line 2.
It rides on the upper side of 2, and the cable hanger 1 passes through the inside of the gold wheel 21 in this state. In addition, the cable for catenary 2
Even if the cable is twisted about its axis, the mounting bracket 5 is configured to be rotatable around the catenary line 2, so that the cable supporting portion 1a is always attached to the catenary line 2 due to its own weight. It is located right below and reliably passes through the gold wheel 21.

Then, after the cable hanger 1 has passed through the inside of the gold wheel 21, the first weight is applied by the cable supporting portion 1a.
The mounting portion 1b rotates around the horizontal portion 1f in a direction (clockwise direction in FIG. 7) opposite to the riding of the gold wheel 21 on the guide roll 22. While the portion 1c is attached to the catenary line 2, the cable support portion 1a returns to a state in which it is positioned substantially vertically below the catenary line 2. At this time, the second mounting portion 1
Since the horizontal distance between the first and second straight line portions 1h and 1j in c is designed to increase downward,
Even if the second mounting portion 1c is slightly displaced in the horizontal direction perpendicular to the catenary line 2, it is reliably caught by the catenary line 2.

When the messenger wire 2 is stretched between the support structures in this manner, the cable hangers 1 are suspended at a predetermined interval, and the cable hangers 1 are attached one by one in the air. No need. Further, the work of stretching the messenger wire 2 between the support structures is almost the same as the conventional one except that the cable hanger 1 is first attached, and can be performed by a simple method. The gold wire support wire 20 and the gold wire 21 are removed after the suspension wire 2 is stretched between the support structures.

Next, to lay the cable 13 itself,
First, attach the cable tow rope 14 to the cable hanger 1
The cable support portion 1a. That is, as shown in FIG. 8, a pulling hook 17 is attached to the lower side of the rear end portion of the guide member 4, and the tip end portion of the cable pulling rope 14 is hooked on the pulling hook 17 through a twisted metal piece if necessary. deep. When the tip end of the guide member 4 is pulled in the same direction as when the catenary line 2 is stretched, the cable pulling rope 14 is pulled through with the tip end suspended in the cable support portion 1a. To be done. Therefore, the tip portion of the cable pulling rope 14 does not hit the cable hanger 1.

When the cable pulling rope 14 is pulled by the guide member 4, the cable pulling rope 14 is attached to the rear end portion of the guide member 4 in the same manner as above when the cable 13 is additionally laid. A new guide member 4 ′ is connected so that the new guide member 4 ′ can be pulled into the inside of the la 1 a, and the new guide member 4 ′ is connected to the guide portion 5 d of the mounting member 5.
To be supported by.

Thereafter, the cable 1 is attached to the rear end portion of the cable pulling rope 14 through a twisted metal fitting (not shown).
3, the cable 13 is laid by pulling the cable 13 into the cable support portion 1a by pulling the tip end of the cable pulling rope 14 in the same direction as when the catenary line 2 is laid. At this time, the cable supporting portion 1a is moved by the friction force with the cable 13
However, since the first attachment portion 1b is attached to the suspension line 2 in a state in which relative movement is restricted in the lengthwise direction of the suspension line 2, The hanging position of the cable hanger 1 does not shift. Moreover, the first mounting portion 1b is urged by the frictional force to move the horizontal portion 1b.
Although it is about to be rotated in the clockwise direction in FIG. 8 around the f, the cable 13 can be reliably and easily laid because it is not rotatable in that direction by the second mounting portion 1c. . Further, since the guide member 4 has a substantially rectangular cross section, unlike the case where the guide member 4 has a circular cross section, it does not rotate around its central axis, and the entanglement between the cable 13 or the cable pulling rope 14 and the guide member 4 is prevented. In addition to being able to prevent it, the tow hook 17 surely passes through the inside of the opening 5e in the lower portion of the guide 5d of the mounting member 5 along the length direction of the catenary line 2 without contacting the guide 5d.

Next, a method of additionally laying a new cable 13 will be described. In this case as well, in the same manner as when the first cable 13 is laid, the tow provided under the rear end of the new guide member 4'is also provided. Hook 17 and cable pulling rope 14
The front end of the cable is hooked, and the guide member 4'is pulled to attach the cable pulling rope 14 to the cable supporting portion 1a.
And then pull this cable to the rope 14
Therefore, the cable 13 may be pulled into the cable supporting portion 1a. By doing so, additional installation of a new cable 13 can be easily performed.

Therefore, in the above embodiment, the cable
The hanger 1 is attached to the catenary line 2 and the length of the catenary line 2 is
For a hoist with relative movement restricted in the vertical direction
As the wire 2 moves in its lengthwise direction, the above-mentioned support structure
A gold wheel supported by a gold wire support line 20 stretched in advance between the bodies
It is possible to pass through the inside of 21 almost along the catenary line 2.
To rotate around the horizontal part 1f of the first mounting part 1b
Since it is suspended on the
Easy support structure with the Bull Hanger 1 attached
Can be stretched in between, and a new cable 13 can be laid
Cable one by one in the air when installing or additional installation
No need to attach hanger 1
Avoid the risk of work and improve the efficiency of cable 13 installation
Can be planned.

Even if the cable supporting portion 1a of the cable hanger 1 is small in size and it is difficult to additionally install the cable 13, the mounting bracket 5
The cable hanger 1 can be removed from the catenary line 2 by removing the horizontal portion 1f of the first mounting portion 1b from the rotation support portion 5c by directing the tip of the bent portion 5b on the upper surface of the mounting portion 5a of the above to the upper side. The cable hangers 1 can be replaced one by one with another large one, and additional laying can be performed in the same manner as the work conventionally performed.
Then, at this time, the first
And between the second mounting portions 1b and 1c or the cable supporting portion 1
The cable 13 and the guide member 4 can be easily put in and taken out through the opening of a.

Further, in the vicinity of the support structure where the cable hanger 1 is not necessary or at the attachment position of the closure, only the cable hanger 1 can be removed after the erection line 2 is laid, and the attachment fitting 5 and the movement restriction fitting 10 can be provided. If they interfere, they can be removed from the catenary line 2, so no problem occurs.

In the above embodiment, the mounting portion 5a of the mounting bracket 5 is formed by the pair of movement restricting brackets 10,10.
The relative movement of the (first mounting portion 1b of the cable hanger 1) in the lengthwise direction with respect to the catenary line 2 is restricted. However, the mounting bracket 5a of the mounting bracket 5 is eliminated by eliminating both the movement restricting metal fittings 10, 10. You may make it possible to move in the length direction of the gantry line 2. In this case, both the first cable laying and the additional laying work will be performed in the air as in the conventional case, but at the time of the additional laying, the first mounting portion 1b should be rotated around its horizontal portion 1f. If the second mounting portion 1c is moved to a position above the catenary line 2 with, the first and second
The cable 13 can be inserted into the cable supporting portion 1a through the mounting portions 1b and 1c of the cable or through the opening of the cable supporting portion 1a. Moreover, after the cable 13 is inserted, the second supporting portion 1c is attached by the weight of the cable supporting portion 1a. Moves downward and is attached to the catenary line 2. As a result, there is no need to remove the cable hanger 1 from the suspension line 2 and reattach it as in the conventional case.
The cable 13 can be additionally laid by a very simple operation, and the efficiency of the operation can be significantly improved. Further, the unnecessary cable 13 laid can be easily taken out from the cable support portion 1a. Further, even when the movement restricting metal fitting 10 is attached as in the above-described embodiment, the work may be performed in the air, and particularly the work may be performed in the air when additional installation is performed.

Further, in the above-mentioned embodiment, the mounting portion 5a of the mounting member 5 is configured to be rotatable around the catenary line 2, but it is not always necessary to do so, and it is assumed that the mounting portion 5a is not rotatable. However, the cable hanger 1 can be made to pass through the inside of the gold wheel 21 by using a gold wheel 21 that is considerably larger than the size of the cable support portion 1a. When the mounting portion 5a is not rotatable around the catenary line 2 as described above, if the mounting portion 5a is provided with a locking claw 10d such as the movement regulating metal fitting 10, the movement regulating metal fitting 10 is fixed. Instead, it is possible to restrict the movement of the catenary line 2 in the length direction only by the mounting portion 5a.

Further, in the above embodiment, the guide member 4
The cable pulling rope 14 is pulled by means of the guide member 4, but the guide member 4 causes the cable 1 having a small diameter to be pulled.
It is also possible to pull 3 directly.

In addition, in the above-described embodiment, the fitting portion 10a of each movement restricting metal fitting 10 is slightly opened with respect to the lengthwise end face of the catenary wire 2 in the mounting portion 5a of the mounting metal fitting 5. Although it is fitted to the overhead wire 2, the clearance is provided to smoothly rotate the mounting portion 5a around the messenger wire 2, and the clearance is eliminated to eliminate the clearance.
It is also possible to completely restrict the movement of the gantry line 2 in the length direction. When the gap is provided, the amount of the gap may be set to a value that is considerably smaller than the distance between the cable hangers 1 and 1 that are adjacent to each other in the length direction of the catenary line 2.

Further, the gold wheel 21 in the above embodiment is an example, and for example, a four-wheel gold wheel 31, as shown in FIG.
The present invention can be applied to the four-sided roller 32 as shown in FIG. 10 and the hanger roller 33 as shown in FIG.

[0041]

As described above, according to the first aspect of the present invention, as a cable hanger, a substantially circular cable support portion having an opening at the upper portion is provided at both ends of the opening with respect to the suspension wire. First and second mounting portions are provided which are mounted apart from each other in the lengthwise direction of the wire, and the first mounting portion is attached to the catenary wire about a horizontal axis substantially perpendicular to the catenary wire. It is rotatably attached, and the second attachment portion is attached to the first attachment portion.
The mounting portion of the above is configured to be movable with respect to the catenary line and a position apart from the upper portion as the mounting portion rotates about a horizontal axis. Department
By rotating about the horizontal axis, the second mounting portion is raised.
When moving to the position above the catenary line,
And the cable from the second attachment part into the cable support part.
By being configured to be able to enter , by moving the second mounting portion to a position separated upward with respect to the catenary line, between the first and second mounting portions with respect to the cable supporting portion or The cable can be taken in and out through the opening of the cable supporting portion, and the efficiency of the work for laying the additional cable can be improved.

According to the second aspect of the present invention, the first mounting portion is mounted in a state in which relative movement is restricted with respect to the catenary line in the lengthwise direction of the catenary line, thereby providing a high place. The work can be avoided and the cable can be installed safely and more easily.

[Brief description of drawings]

FIG. 1 is a side view showing a state in which a cable hanger according to an embodiment of the present invention is hung on a suspension line.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a top view of a catenary wire and a cable hanger.

FIG. 4 is an enlarged sectional view taken along line IV-IV of FIG.

FIG. 5 is a perspective view showing a gold wheel.

FIG. 6 is a side view showing a state in which a mounting bracket is in contact with a guide roll of a gold wheel.

FIG. 7 is a side view showing a state in which the cable hanger is passing through the inside of the gold wheel.

FIG. 8 is a side view showing a state in which the cable pulling rope is pulled by the guide member.

FIG. 9 is a perspective view showing a four-wheel train.

FIG. 10 is a front view showing a four-sided roller.

FIG. 11 is a front view showing a hanger roller.

FIG. 12 is a perspective view showing a conventional cable hanger.

[Explanation of symbols]

1 cable hanger 1a Cable support 1b First mounting part 1c Second mounting part 1f Horizontal part (horizontal axis) 2 Crane line 13 cables

Front page continued (72) Inventor Sadaki Yamakawa 4-3 Ikejiri, Itami City, Hyogo Prefecture Mitsubishi Electric Wire & Cables Co., Ltd. Itami Works (72) Inventor Takashi Kaneko 4-chome Ikejiri, Itami City, Hyogo Mitsubishi Electric Line Industry Itami Seisakusho Co., Ltd. (56) Reference JP-A-11-243611 (JP, A) JP-A-61-69314 (JP, A) Jitsuko Sho-36-4565 (JP, Y1) (58) Fields investigated ( Int.Cl. ⁷ , DB name) H02G 7/06

Claims (2)

(57) [Claims] 1. A cable hanger for suspending a cable for suspension extending between adjacent support structures and supporting a cable along the cable for suspension, which comprises: A substantially annular cable support portion that is located substantially vertically below and has an upper opening, and is provided at both ends of the opening of the cable support portion, respectively, with respect to the above-mentioned suspension line, in the longitudinal direction of the suspension line. A first and a second mounting portion that are mounted in a state of being separated from each other, wherein the first mounting portion is rotatable about a horizontal axis that is substantially perpendicular to the catenary line with respect to the catenary line. The second mounting portion is movably mounted, and the second mounting portion is separated from an upper position and a position where the second mounting portion is mounted on the messenger wire as the first mounting portion rotates about the horizontal axis. It has been configured to be movable between a mutual to a position , Above in that said first attachment portion is pivoted to the horizontal axis
Note that the second mounting part should move to the position above the catenary line.
Cable from the first and second mounting parts
A cable hanger characterized by being configured to be inserted into a cable support portion . 2. The cable hanger according to claim 1, wherein the first mounting portion is mounted in a state in which relative movement is restricted with respect to the catenary line in the longitudinal direction of the catenary line. A cable hanger characterized by that.