JPH11308720A - Device and method of cable installation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid a dangerous aerial work when an additional cable is installed between support structures such as poles, etc., which are adjacent to each other and, further, install the additional cable efficiently. SOLUTION: A cable installation device has a hanger 3 with cable supporters 8a and 8b which are hung from a hanging wire 2 so as to have their relative movements in the longitudinal direction of the hanging wire 2 restricted and support a cable 13 along the hanging wire 2. A guide member 4 which is extended along the hanging wire 2 and, further, introduces the cable 13 or a cable pulling rope into the cable supporters 8a and 8b so as to have the cable 13 or the cable pulling rope supported by the cable supporters 8a and 8b and, further, a guide supporter 7 which is attached to the hanging wire 2 so as to have its relative movement restricted and guides the guide member 4 so as to be moved along the hanging wire 2 are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire for hanging between adjacent supporting structures, and a cable suspended from the wire for supporting and supporting a cable along the wire for hanging. The present invention belongs to a technical field related to a cable laying apparatus and a cable laying method provided with a hanger having a support portion.

[0002]

2. Description of the Related Art Generally, in order to lay cables between supporting structures such as telephone poles, metal poles, buildings, etc., first, a wire for supporting the cables is bridged between the supporting structures. Need to be kept. To this end, first, a support wheel for a wheel such as a rope is laid between the support structures, and a plurality of wheel wheels as shown in FIG. 5, for example, are suspended from the support line for the wheel and the support structure. This is done by moving the wire in the direction of its length through each of the wires in each wheel. In addition, the support wheel for a wheel and the wheel are removed after the wire for the bridge is laid or the cable is laid as described later.

[0003] The hanger is not hung from the above-mentioned wire for laying when the cable is laid, but is attached after the wire for hang- ing is laid. That is, generally, first, a plurality of similar pulleys are suspended on the laying wire, and then a cable tow rope is passed through each of the pulleys. Then, after pulling a cable connected to one end of the pulley with the cable pulling rope and passing the pulley into each of the pulleys, the pulley is put on the bucket wheel, etc.
For example, hangers 30 as shown in FIG. 18 are attached to the wire 31 at a predetermined interval while being removed one by one, and the cables 32 are supported by the hangers 30.

To additionally lay a new cable 32 ', a wheel is hung on the wire 31 or a newly provided support wire for the wheel, and the inside of each wheel is similarly provided. New cable 32 'via cable tow rope
Through. Then, while removing the hanger 30 and removing the wheel, the hanger 30 is attached to the wire 31 again to support the newly laid cable 32 and the new cable 32 '. At this time, when the hanger 30 is small and additional installation is difficult, a large hanger is newly attached to the wire 31 to support both cables 32 and 32 '.

[0005]

However, in the above-mentioned conventional additional laying method, every time an additional cable is laid, it is necessary to remove the hanger from the wire for the hanger at a high place and attach it again. It is a danger. Also,
It is necessary to remove and attach many hangers one by one, which requires time and effort.

The present invention has been made in view of the above, and an object of the present invention is to improve the structure of a cable laying device when a cable is laid between adjacent support structures. Accordingly, it is an object of the present invention to prevent the danger of riding in the air and improve the efficiency of laying additional cables.

[0007]

In order to achieve the above object, according to the present invention, there is provided a guide member for pulling a cable or a cable pulling rope for pulling the cable so as to be supported by a cable support of a hanger. And a guide support for guiding the guide member to move along the overhead wire.

Specifically, according to the first aspect of the present invention, a wire for a bridge stretched between adjacent supporting structures, and a length direction of the wire for the bridge with respect to the wire for a bridge is provided. And a hanger having a cable supporting portion that supports the cable along the wire for hanging, and is hung in a state where relative movement is restricted.

[0009] A guide member extending along the hanging wire and pulling the cable or a cable pulling rope for pulling the cable so as to be supported by the cable support portion of the hanger; Or a guide hanger attached to a hanger in a state where relative movement in the length direction of the hanging wire is restricted, and a guide support for guiding the guide member to move along the hanging wire. And

[0010] Thus, the guide member is supported by the guide support member at the time of the first cable laying, and the cable or the cable pulling rope is pulled by the guide member at the time of additional laying, so that the cable can be directly or directly connected to the cable. It can be pulled indirectly via the tow rope so that it is supported by the cable support of the hanger. At this time,
Since the hanger is suspended in a state where the relative movement is restricted in the length direction of the hanger wire with respect to the hanger wire, the hanging position is changed by being dragged by the cable being pulled. There is no. In addition, since the guide support is attached to the trolley wire or the hanger in a state where the relative movement is restricted, the guide support guides the guide member at a predetermined position without being dragged by the guide member. As a result, if the size of the cable support portion of the hanger can be additionally laid when the first cable is laid, it is not necessary to remove and attach the hangers one by one in the air.
Therefore, while being able to prevent the danger of riding in the air,
Additional laying of cables can be easily performed. Note that the cable can be easily laid by using the guide member even at the time of the first cable laying.

According to a second aspect of the present invention, in the first aspect of the present invention, the guide support is hung on the wire for the erection,
It is assumed that the hanger is hung on the wire for hanging via the guide support.

By doing so, it is possible to reduce the number of parts of the entire apparatus, and it is also possible to connect the hanger to the guide support before suspending the hanger from the wire for the hangers in advance. It is only necessary to attach the guide support with
Work at high altitudes can be simplified. Also, since the guide support is located above the hanger, the cable or cable tow rope can be lifted and pulled so that the tip does not contact the hanger when additional cables are laid, and the cable can be securely and easily made. Additional laying is possible.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the hanger is suspended so as to be rotatable around a horizontal axis substantially perpendicular to the hanger line.

According to the present invention, at the time of the first cable laying, the hanger or the guide support having the hanger hung in advance is hung on the hanger wire before the hanger wire is hung between the support structures. Can be. That is,
The hanger may be brought into contact with the wheel when the wire is moved through the suspension wire into the wheel supported by the support structure or into the wheel supported by the wheel support wire previously bridged between the support structures. The wire can be easily rotated through a horizontal axis substantially perpendicular to the hanging wire without slipping in the length direction of the hanging wire, and can easily pass through the metal wheel along the hanging wire. Further, the hanger thus rotated is rotated about its horizontal axis by its own weight and returns to its original state. For this reason, the wire for hanging can be easily hung between the support structures in almost the same manner as in the related art, and at the time of completion thereof, the hanger is suspended at a predetermined interval. And even when hanging the hanger directly on the hanger wire, if the guide support is attached to the hanger wire in advance, the cable can be supported by this hanger in the same way as the additional laying by the guide member. It can be pulled through as supported by the part.
Therefore, not only at the time of additional laying but also at the time of the first laying, work at a high place can be avoided and the cable can be laid easily.

According to a fourth aspect of the present invention, in the third aspect of the present invention, the hanger is suspended substantially vertically downward with respect to the hanging wire, and the hanger is suspended in the longitudinal direction of the hanging wire from this state. It is assumed to be suspended so as to be rotatable with respect to the state in which it is turned to the side and along the hanging wire.

Thus, the hanger is moved in the direction in which the hanger comes into contact with the wheel while the hanger wire is wound between the support structures, and when the cable itself is laid, the hanger is dragged by the cable. If the cable is moved in a non-rotating direction, the hanger does not rotate when the cable is laid, and the cable can be laid more easily.

According to a fifth aspect of the present invention, in the third or fourth aspect, the hanger is suspended so as to be rotatable around a wire for the hangers. This makes it easy for the hanger to pass through the wheel even if the wheel and the hanger are relatively displaced in the horizontal direction perpendicular to the overhead wire.

According to a sixth aspect of the present invention, in any one of the first to fifth aspects of the present invention, the relative rotation of the guide member about the axis extending in the longitudinal direction of the guide member with respect to the guide support member is regulated. It is assumed that it is supported in a state where it is set. This can prevent the cable or the cable pulling rope and the guide member from becoming entangled.

According to a seventh aspect of the present invention, in the sixth aspect, the guide member has a substantially rectangular cross section.

[0020] Thus, when the guide member is wound around the drum in the same manner as the hanging wire, it becomes easy to wind and supply. Moreover, unlike the case of a circular cross section, it is easy for the guide portion to regulate the relative rotation about the axis along the length direction of the guide member. Therefore, it is possible to prevent the cable or the cable pulling rope and the guide member from becoming entangled with a simple configuration.

According to an eighth aspect of the present invention, in the sixth or seventh aspect of the present invention, the guide supporting member is provided around the guide member in a state where it has an opening in a part in the circumferential direction when viewed from the length direction of the guide member. Shall be covered.

[0022] With this configuration, when the guide member moves along the trolley wire, the member connecting the cable or the cable tow rope and the guide member passes through the opening, so that the connecting member can be moved. It is possible to prevent the movement of the guide member from being hindered, and it is possible to reliably guide the guide member.

According to a ninth aspect of the present invention, in any one of the first to eighth aspects, the cable support portion of the hanger is formed in a substantially annular shape, and a part of the cable support portion is configured to be openable. And

Thus, since the cable supporting portion is formed in a substantially annular shape, the cable can be reliably supported, and a part of the cable supporting portion is opened to allow the cable or the guide member to pass therethrough. The hanger can be attached to and detached from the overhead wire even in situations where the cable support of the hanger is too small to install additional cables. By doing so, one by one can be replaced with another large one, and additional laying can be performed in the same manner as the operation performed conventionally. Further, even when the cable is already laid by being supported by the conventional cable laying device, the conventional cable laying device can be replaced with the cable laying device of the present invention.

According to a tenth aspect of the present invention, the hanger having the cable supporting portion is relatively moved in the length direction of the hanging wire with respect to the hanging wire stretched between the adjacent supporting structures. It is an invention of a cable laying method in which the cable is laid in a state where the cable is hung in a restricted state and the cable is passed through the cable support portion of the hanger so that the cable is laid along the hanger wire.

According to the present invention, the guide member extending along the above-mentioned hanging wire is attached to the hanging wire or the hanger in such a manner that the relative movement of the guiding wire in the longitudinal direction of the hanging wire is regulated. A guide support for guiding the guide member so as to move along the overhead wire, and a cable or a cable tow for pulling the cable by the guide member guided by the guide support. The cable is laid by moving the rope along the trolley wire and pulling the rope so as to be supported by the cable support portion of the hanger. By doing so, the same operation and effect as the first aspect of the invention can be obtained.

[0027]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show a cable laying device according to an embodiment of the present invention.
A hanging wire 2 stretched between adjacent supporting structures; a guide member 4 having a substantially rectangular cross section extending along the hanging wire 2; A guide support 7 for guiding the guide member 4 to move along the overhead wire 2;
And a hanger 8 hung from the wire 2 for the trolley via the wire. The overhead wire 2 is obtained by applying rust-proof plating to a steel stranded wire obtained by twisting seven steel wires.
The support structure is, for example, a utility pole, a metal pole, a building, or the like.

As will be described later, the guide support 7 and the hanger 8 are moved in the longitudinal direction of the hanging wire 2 (right and left in FIG. 1) just before the hanging wire 2 is stretched between the supporting structures. Direction) at predetermined intervals (for example, 50 cm intervals). The guide support 7 is made of a plate material detachably provided on the wire for hanging 2, while the hanger 8 is made of a single wire having a circular cross section provided to be detachable from the guide support 7.

At the upper part of the guide support 7, there is formed a mounting portion 7a which is attached to the hanging wire 2 substantially one round around the hanging wire 2, and this mounting portion 7a is used for the hanging wire. It is rotatable around the line 2. A pair of aluminum movement restricting rings 10, 10 are provided on both sides in the length direction of the wire 2 for the attachment portion 7a.
And the attachment portion 7a is restrained from moving relatively in the longitudinal direction of the wire 2 with respect to the wire 2 for the wire. Installed. A substantially U-shaped engaging portion 7b having an opening at one end in the longitudinal direction of the hanging wire 2 (the right side in FIG. 1) and engaging with the hanger 8 is formed below the mounting portion 7a. Have been.

The hanger 8 has first and second cable support portions 8a, 8b having a substantially annular shape at a predetermined interval in the length direction of the wire for hanging 2 and the cable support portions 8a, 8b.
8b is capable of supporting a plurality of cables 13, 13,... Along the overhead wire 2 inside thereof and having a size capable of passing through a metal wheel 21 (see FIG. 5) described later. Is set. On the upper side of the first cable support portion 8a, an engaging portion 8c fitted into the locking portion 7b of the guide support 7 is provided so as to extend in a horizontal direction substantially perpendicular to the hanging wire 2. The hanger 8 is rotatable around the engaging portion 8c itself (horizontal axis) in a state where the engaging portion 8c is fitted in the engaging portion 7b of the guide support member 7. The vertical spacing on the opening side of the locking portion 7b is formed smaller than the diameter of the engaging portion 8c so that the locking portion 7b does not come off with a small force. As a result, the hanger 8 is also suspended in a state where the relative movement of the hanger 8 in the length direction of the hanger wire 2 is restricted. On the other hand, a hook portion 8d having an opening on the lower side and hooked on the hanging wire 2 is formed in an upper portion of the second cable support portion 8b. This hook 8d
Are stacked in the length direction of the hanging wire 2 in a state where the vicinity of both ends of the wire constituting the hanger 8 is bent in a substantially U shape (as viewed from the length direction of the hanging wire 2). It becomes.

When the engaging portion 8c of the hanger 8 is fitted into the engaging portion 7b of the guide support 7 and the hook 8d is hooked on the wire 2 for hanging, the guide support 7 and the hanger 8 become their own weight. 1 and 2 in a state of being suspended substantially vertically below the overhead wire 2 (FIGS. 1 and 2).
State). Further, the hanging portion 8d prevents the hanger 8 from rotating clockwise in FIG. 1 from a state of being hung substantially vertically downward around the engaging portion 8c. Furthermore, when the hanger 8 rotates about 90 ° in the counterclockwise direction, the hanger 8 can be in a state substantially along the wire for hanging 2. That is, the hanger 8 is connected to the hanger wire 2
And a state in which it is suspended substantially vertically below, and a state in which the hanging wire 2 is turned to one side in the longitudinal direction (the right side in FIG. 1) along the hanging wire 2 from this state. It is possible to rotate between them.

The lower portions of the first and second cable support portions 8a and 8b of the hanger 8 are bent substantially toward the center so that the lower portions are substantially in close contact with each other.
Even when the lower portions of the first and second cable support portions 8a and 8b are pressed against the trolley wire 2 when passing through the metal wheel 21, they are not deformed in a direction approaching each other. Further, in the hooking portion 8d, each of the ends of the wire material constituting the hanger 8 is connected to the hanger wire 2 so that the two substantially U-shaped portions do not deviate from the hanger wire 2 in the vertical direction. The stoppers are each bent toward the other side in the length direction of the wire 2.

The first and second cable support portions 8a and 8b of the hanger 8 are formed at the center in the vertical direction with a portion connecting the first and second cable support portions 8a and 8b to each other, and the portion is suspended. A substantially U-shaped upper engaging / disengaging portion 8e having an opening at the upper end at both ends in the length direction of the service line 2;
A lower engaging / disengaging portion 8f is formed of a portion connecting the first and second cable supporting portions 8a and 8b to each other, and is capable of engaging and disengaging with respect to the upper engaging / disengaging portion 8e. The upper and lower engaging / disengaging portions 8e and 8f are normally engaged with each other, so that the cable 13 can be reliably supported inside the cable supporting portions 8a and 8b. By releasing the engagement, a part of the first and second cable support portions 8a and 8b can be opened, and the cable 13 and the guide member 4 can be put in and out through the open portions. ing.

A guide for guiding the guide member 4 to move along the wire 2 on the lower side of the guide support 7 and on the opposite side of the mounting portion 7a from the locking portion 7b. A portion 7c is provided. This guide part 7
c is an upper portion 7d which is located above the guide member 4 and extends substantially horizontally, both side portions 7e, 7e which are located on both sides of the guide member 4 and extend vertically, and a lower portion of the guide member 4 is provided. And lower portions 7f, 7f which are positioned substantially horizontally from the lower ends of both side portions 7e, 7e. That is, the guide portion 7c of the guide support 7 covers the periphery of the guide member 4 in a state where the guide portion 7c has an opening 7j in a part (lower portions 7e, 7e) in the circumferential direction when viewed from the length direction of the guide member 4. Will be. As shown in FIG. 4, the distance between the end surfaces of the hanging wires 2 and the end surfaces of the lower portions 7 f and 7 f on the central side in the vertical direction is directed toward the center of the length of the hanging wires 2 of the guide portion 7 c. It is formed so as to be small. The upper and lower portions 7d, 7f, 7f and the side portions 7e, 7e of the guide portion 7c regulate the movement of the guide member 4 in the vertical and horizontal directions, respectively, and guide the guide member 4 so as to be movable along the hanging wire 2. The guide member 4 is supported in a state in which relative rotation is regulated around an axis extending in the longitudinal direction.

The guide member 4 is configured to support the cable 13 or the cable pulling rope 14 for pulling the cable 13 so as to be supported by the first and second cable supporting portions 8a and 8b of the hanger 8. Cable support 8a,
8b, and is formed of, for example, a belt-like long body. Under one end of the guide member 4, one end of the cable 13 or the cable tow rope 14 is placed inside the first and second cable support portions 8a and 8b (preferably upward from the center in the vertical direction). (See FIG. 8). This tow hook 17
May be configured so that the cable 13 or the cable tow rope 14 can be suspended via the twisted metal. When the guide member 4 pulls the cable 13 or the cable pulling rope 14, the pulling hook 17 is connected between the hanging wire 2 of the lower portion 7f, 7f of the guide portion 7c and the end face on the center in the vertical direction (opening 7j). ). In addition, this towing hook 1
When passing through the gap between the end faces (opening 7j), even if the end face 7 comes into contact with the end face, it is guided toward the center by the end face,
It can be passed smoothly.

A method of laying the cable 13 using the cable laying apparatus having the above configuration will be described. First, a support wheel 20 (see FIG. 6) such as a rope is laid between supporting structures such as electric poles on which the cable 13 is laid.
A plurality of wheels 21 shown in FIG. 5 are suspended from the wheel supporting wire 20 or the support structure at appropriate intervals. The wheel 21 is the same as that conventionally used, and has a guide roll 22 and two support plates 23, 23 for rotatably supporting the guide roll 22.
The two support plates 23 are fastened and fixed to each other by a butterfly nut 24 at the axial center of the guide roll 22 above the guide roll 22. At the upper end of one of the support plates 23, a suspension hook 25 for suspending the wheel 21 from the wheel support line 20 is provided. In addition, instead of this suspension hook 25, both support plates 23,
In some cases, the wheel 21 is hung by sandwiching the wheel support line 20 with 23.

On the other hand, a pair of movement restricting rings 10 and 10 are previously caulked on both sides of the position where the guide support 7 and the hanger 8 are to be mounted on the hanging wire 2, respectively. (Not shown). Further, the guide member 4 is wound around another drum. Then, the above-mentioned wire for hanging 2 and guide member 4
The guide supports 7 and the hangers 8 are attached just before the wire for hanging 2 is stretched between the support structures while pulling the respective tips at the same speed and pulling out from the drum. That is, first, the pair of movement restriction rings 10, 1
0, the guide support 7 is fixed, and its locking portion 7b is attached to the mounting portion 7a.
The wire is attached so as to protrude more toward the tip side (left side in FIG. 6) of the wire for cradle 2. At this time, the lower portions 7f, 7f of the guide portion 7c of the guide support 7 are not formed horizontally, but extend downward continuously from both side portions 7e, 7e of the guide portion 7c. . And
The guide member 4 is supported by the guide portion 7c by fitting the guide member 4 between the side portions 7e and 7e of the guide portion 7c and horizontally bending the lower portions 7f, 7f extending downward. Next, the engaging portion 8c of the hanger 8 is fitted into the locking portion 7b of the guide support 7. At this time,
The engagement between the upper and lower engaging / disengaging portions 8e and 8f is released to be opened, and the guide member 4 is moved from the opening between the upper and lower engaging / disengaging portions 8e and 8f to the first and second cable support portions. 8a,
8b. Further, the hanger 8 is rotated about 90 ° in a counterclockwise direction in FIG. 1 from a state of being hung substantially vertically below the engagement portion 8c as a center, and
A gap is formed between the two substantially U-shaped portions of the hooking portion 8d by moving the two substantially U-shaped portions over the stopper portion thereof and shifting the two substantially U-shaped portions in a direction opposite to the hanging wire 2 in a direction opposite to each other. The first and second wires 2
The hook portion 8d is passed through the inside of the cable support portions 8a and 8b, and is positioned above the hanging wire 2. After that, the gap is closed and fixed by the stopper portion, and then the hanger 8 is closed.
Is rotated in the opposite direction (clockwise), and the hook 8d is hooked on the wire for hanging 2. Next, the upper and lower engaging / disengaging portions 8e and 8f are engaged with each other. This can be done by each guide support 7 and hanger 8
Is repeated. The order in which the guide support 7 and the hanger 8 are attached to the hanging wire 2 is not limited to this, and may be any order. For example, the guide support 7 and the hanger 8 are attached in advance. After being attached to the wire 2 in the state, the guide member 4 may be passed through the guide portion 7c.

Subsequently, while pulling the tip of the above-mentioned hanging wire 2 and the guide member 4, the hanging wire 2,
The guide wire 7, the hanger 8, and the guide member 4 are passed through the inside of the wheel 21 (the space surrounded by the guide roll 22 and the two support plates 23, 23), and the wire 2 is connected between the support structures. To overhang At this time, how the hanger 8 passes through the wheel 21 will be described by way of an example. First, the wire 2 moves in the length direction, and as a result, as shown in FIG. The engaging portion 7b of the guide support 7 contacts the guide roll 22 of the wheel 21. Then, if the tip of the wire 2 is continued to be pulled, the guide support 7 is restricted by the pair of movement restricting rings 10 and 10 from moving in the longitudinal direction of the wire 2. The locking portion 7b rides above the guide roll 22, and the first cable support portion 8a of the hanger 8 comes into contact with the guide roll 22 this time. Then, the hanger 8 is rotated about 90 ° in the counterclockwise direction from the state of being hung substantially vertically below the engagement portion 8c as a center and rides on the upper side of the guide roll 22 as shown in FIG. . At this time, even if the wheel 21 and the guide support 7 or the hanger 8 are relatively displaced in the horizontal direction perpendicular to the hanger wire 2, the guide support 7 of the hanger 8 is The hanger 8 is easily rotatable around, so that the hanger 8 easily passes through the wheel 21. Then, after the hanger 8 has passed through the wheel 21, the hanger 8 is again suspended substantially vertically downward by its own weight. In this way, the wire for hanging 2 is connected to the guide support 7.
In addition, the hanger 8 can be easily hung between the support structures in almost the same manner as in the related art except that the hanger 8 is attached first, and when the hanger 8 is completed, the hanger 8 is suspended at a predetermined interval. In addition, the support wire 20 for the wheel and the wheel 21 are detached after the wire 2 for the bridge is hung between the support structures.

Next, to lay the cable 13 itself,
First, the cable tow rope 14 is drawn through the first and second cable support portions 8a and 8b of the hanger 8. That is, as shown in FIG. 8, a tow hook 17 is attached to the lower side of the rear end of the guide member 4.
If necessary, the tip of the cable tow rope 14 is hooked through a twisted metal. And the guide member 4
Is pulled in the same direction as when the hanging wire 2 is hung, the cable pulling rope 14 is in a state where the tip is suspended in the first and second cable support portions 8a and 8b. Will be taken over. Therefore, the tip of the cable tow rope 14 does not hit the hanger 8.

When the cable tow rope 14 is towed by the guide member 4, the cable tow rope 14 is similarly supported at the rear end of the guide member 4 when the cable 13 is additionally laid. A new guide member 4 ′ is connected so that the new guide member 4 ′ is supported by the guide portion 7 c of the guide support 7 so as to be able to be drawn through the portions 8 a and 8 b.

Thereafter, the cable 1 is connected to the rear end of the cable pulling rope 14 via a twisted metal (not shown).
3 and pulling the end of the cable pulling rope 14 in the same direction as when the laying wire 2 is laid, thereby connecting the cable 13 to the first and second cable support portions 8a, 8a.
The cable 13 is laid by passing the cable 13 through the inside of the cable 13. At this time, the cable 13 is pulled so as to rotate the hanger 8 in the clockwise direction in FIG. 1, but since the hanger 8 cannot be rotated in that direction, the cable 13 can be securely and easily laid. Can be done. Further, since the guide member 4 has a substantially rectangular cross section, unlike the case of a circular cross section, the guide member 4 does not rotate around its center, and the cable 13 or the cable tow rope 14 and the guide member 4 are not rotated.
And the towing hook 17 is attached to the lower part 7f of the guide part 7c,
, And reliably and easily pass between the end faces on the central side in the vertical direction.

Next, when a new cable 13 needs to be additionally laid, the same procedure as when the first cable 13 is laid may be performed. At this time, the new cable 13 can be hooked on the towing hook 17 provided below the rear end of the new guide member 4 'via a twisted metal as necessary. Can be easily laid.

Therefore, in the above embodiment, the cable laying device includes the guide member 4 for pulling the cable pulling rope 14 and the guide supporter for guiding the guide member 4 to move along the hanging wire 2. 7 and
The hanger 8 is moved by the guide support 7 in a state in which relative movement is restricted in the length direction of the hanging wire 2. It is suspended rotatably around the engaging portion 8c so that it can pass through the wheel 21 supported on the wheel supporting wire 20 previously stretched between the bodies in a state substantially along the hoisting wire 2. Therefore, the wire for hanging 2 can be easily laid between the support structures with the hanger 8 attached in advance,
When newly laying the cable 13 or when laying an additional cable, it is not necessary to attach the hangers 8 one by one in the air, thereby avoiding the danger of working at a high place and improving the efficiency of laying the cable 13. Can be.

Further, even if the first and second cable support portions 8a and 8b of the hanger 8 are small in size and it is difficult to lay the cable 13 additionally,
The engaging portion 8c of the hanger 8 is engaged with the locking portion 7b of the guide support 7.
And the upper and lower engaging / disengaging portions 8 of the hanger 8
e, 8f are disengaged from each other, so that the hanger 8
Can be replaced one by one with another large one, and additional laying can be performed in the same manner as the operation performed conventionally.

Further, in the vicinity of the support structure where the hanger 8 becomes unnecessary or in the place where the closure is attached, the hooking wire 2 is passed over, and then the engaging portion 8c of the hanger 8 is disengaged from the locking portion 7b of the guide support 7. When the guide support 7 is in the way, it can be removed from the wire 2 by bending the mounting portion 7a, so that no problem arises.

In the above-described embodiment, the wire for hanging 2 is wound around the drum without the guide support 7 and the hanger 8, and the guide support 7 and the hanger 8 are placed just before being stretched between the support structures. I tried to attach it,
Since the hanger 8 is rotatable around the engaging portion 8c, the hanger 8 may be wound around the drum with the guide support 7 and the hanger 8 attached.

In the above-described embodiment, the cable tow rope 14 is pulled by the guide member 4.
3 can be directly towed.

Further, in the above embodiment, the hanger 8
Are not required to be attached one by one in the air even when the first cable 13 is laid.
When laying 3, it can be configured to be attached one by one in the air as in the conventional case, and when laying additional, it is possible to avoid work at a high place and to easily perform the work. For example, as shown in FIG. 9, the guide support 7 may be attached to a hanger 8 similar to the conventional one. That is, a substantially annular cable support portion 8a is formed by an intermediate portion of one wire, and attachment portions 8g, 8g for the suspension wire 2 are formed by both ends thereof, and an upper portion of the cable support portion 8a is A guide support 7 having the same shape as the guide portion 7c of the guide support 7 in the above embodiment is attached and fixed in advance. And the first cable 13
At the time of laying, the relative movement of the mounting portions 8g, 8g of the hanger 8 with respect to the hanging wire 2 in the length direction thereof is restricted (when the cable 13 or the cable pulling rope 14 is pulled by the guide member 4). And the guide member 4 is supported by the guide support 7. With this,
By pulling the cable 13 or the cable pulling rope 14 by the guide member 4 at the time of additional laying, the cable 13 can be pulled into the cable support portion 8a, and the additional laying of the cable 13 can be easily performed.

The guide support 7 and the hanger 8 are
For example, as shown in FIG. 10, the suspension wire 2 may be suspended while being shifted in the length direction of the suspension wire 2. In this case, the guide support 7 is the same as that of the above-described embodiment, and the hanger 8 is the same as the conventional one as described above. Even in this case, the additional cable 13 can be easily laid.

Then, as shown in FIG. 11, the guide support 7 and the hanger 8 are suspended while being displaced in the length direction of the hanging wire 2 with respect to the hanging wire 2. The present invention can also be applied to a case in which the same hanger 8 as in the above embodiment is hung on the wire for hanging 2 via the hanger hanger 11. In this case, the hanger suspension tool 11 is the same as the guide support tool 7 of the above embodiment (there is no guide portion 7c, and the mounting portions 11a and the lock portions 7b of the guide support tool 7 correspond to the mounting portions 11a and 7b, respectively).
a and the locking portion 11b).

Further, in the above-described embodiment, each of the movement restricting rings 10 is made of aluminum and is caulked to the overhead wire 2. However, it may be caulked with copper, lead or other metal, and resin may be used. It may be formed by a mold by the injection method described above. In addition, a resin or metal material may be tightened and fixed (insulok), or a metal material may be arc welded, soldered, or silver brazed.

Each of the movement restricting rings 10 is caulked with a slight gap from the mounting portion 7a of the guide support 7 to the trolley wire 2. It is provided for smooth rotation, and the gap may be eliminated to completely restrict the relative movement of the attachment portion 7a in the length direction of the wire for hanging 2. In addition, the amount of the gap may be set to a value that is considerably smaller than the distance between the cable hangers 3 and 3 that are adjacent to each other in the length direction of the wire for hanging 2.

Further, as another form of the guide supporting member 7, as shown in FIG.
You may make it the position relationship with the c in the length direction of the wire 2 for a bridge reverse to the said embodiment. By doing so, the first hanger 8 can be used when the wire 2
When the cable supporting portion 8a comes into contact with the wheel 21, the opening of the locking portion 7b of the guide supporting member 7 is located on the distal end side in the moving direction of the hanging wire 2, so that the engaging portion 8c of the hanger 8 is engaged.
There is no danger that it will come off the locking part 7b even if it is pushed backward by the wheel 21. In FIG. 12, the shape relationship between the upper and lower engaging / disengaging portions 8e and 8f in the first and second cable support portions 8a and 8b is opposite to that in the above embodiment.

In the above-described embodiment, the guide member 4 is formed to have a substantially rectangular cross section.
As shown in FIG. 3 and FIG. 14, the projection 4a is formed to have a substantially circular cross section and regulates relative rotation with respect to the guide portion 7c about its substantially central axis (the axis along the length direction of the guide member 4). It may be formed. In this case, the guide portion 7c has a shape having an opening 7j which is fitted outside the guide member 4 and through which the towing hook 17 can pass. In FIG. 13, the projection 4 is provided in the opening 7j.
14, the relative rotation with respect to the guide member 4 is regulated. In FIG. 14, a concave portion 7k in which the projection 4a fits is formed at a position different from the opening 7j to regulate the relative rotation. To do. As shown in FIG. 14, in addition to providing the projection 4a on the guide member 4 and providing the recess 7k in which the projection 4a fits in the guide 7c, the relationship of the unevenness is reversed and the inside of the guide 7c is formed. A protrusion may be formed on the guide member 4.

Further, the guide 7c is connected to the cable support 8
It is not necessary to provide the upper part of the cable support portions 8a and 8b. For example, the lower part of the cable support parts 8a and 8b may be provided at the side part in the direction perpendicular to the length direction of the hanging wire 2. It may be provided. At this time, the opening 7j of the guide portion 7c is directed substantially toward the center of the cable support portions 8a and 8b (or upward when the guide portion 7c is provided below the cable support portions 8a and 8b). , The opening 7j,
What is necessary is just to let the thing similar to the said tow hook 17 which supports the cable 13 or the cable tow rope 14 pass.

Further, the gold wheel 21 in the above embodiment is an example, and for example, a four-wheel gold wheel 3 as shown in FIG.
1, the present invention can be applied to a four-sided roller 32 as shown in FIG. 16 and a hanger roller 33 as shown in FIG.

[0057]

As described above, according to claim 1 or claim 10,
According to the invention, the hanger having the cable support portion is hung with respect to the hanging wire in a state where relative movement is restricted in the length direction of the hanging wire, and the guide member is guided by the guide support. By pulling the cable or a cable tow rope for pulling the cable along the wire for hanging while being supported by the cable support portion of the hanger, the cable is laid. In addition, it is possible to prevent the danger of riding in the air and increase the efficiency of laying additional cables.

According to the second aspect of the present invention, since the guide support is hung on the wire for hanging and the hanger is hung on the wire for hanging via the guide support, work at a high place is achieved. Can be simplified, and the cable or cable tow rope can be lifted and towed so that the tip end does not contact the hanger.

According to the third aspect of the present invention, the hanger is suspended so as to be rotatable about a horizontal axis substantially perpendicular to the hanging wire, so that work at a high place can be avoided even when the first cable is laid. Cable can be easily laid.

According to the fourth aspect of the present invention, the hanger is hung substantially vertically below the hanging wire, and from this state, the hanger is rotated to one side in the length direction of the hanging wire. The cable can be further easily laid by being suspended so as to be rotatable with respect to a state along the trolley wire.

According to the fifth aspect of the present invention, the hanger is rotatably hung around the wire for hanging, so that the hanger can easily pass through the wheel.

According to the invention of claim 6, the guide member is
A cable or a cable tow rope and a guide member are prevented from being entangled by being supported in a state in which relative rotation is restricted about an axis extending in the length direction of the guide member with respect to the guide support tool. can do.

According to the seventh aspect of the present invention, since the guide member has a substantially rectangular cross section, it can be easily wound around the drum and supplied easily, and the cable can be rotated by the guide member relative to the guide support. Alternatively, entanglement between the cable tow rope and the guide member can be easily prevented.

According to the invention of claim 8, the guide supporting member covers the periphery of the guide member with an opening in a part in the circumferential direction when viewed from the length direction of the guide member. Thereby, the guide of the guide member can be reliably performed while preventing the member connecting the cable or the cable tow rope and the guide member from hindering the movement of the guide member along the overhead wire.

According to the ninth aspect of the present invention, since a part of the substantially annular cable supporting portion is configured to be openable, the size of the cable supporting portion of the hanger is small, and it is difficult to additionally lay cables. Even in such a situation, additional laying can be performed in the same manner as in the conventional operation.
Further, even when the cable is already laid by being supported by the conventional cable laying device, the conventional cable laying device can be replaced with the cable laying device of the present invention.

[Brief description of the drawings]

FIG. 1 is a side view showing a state in which a hanger is hung on a wire for hanging in a cable laying apparatus according to an embodiment of the present invention.

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

FIG. 3 is a top view of the cable laying device.

FIG. 4 is a view in the direction of arrow IV in FIG. 2;

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

FIG. 6 is a side view showing a state in which the locking portion of the guide support is in contact with the guide roll of the wheel.

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

FIG. 8 is a side view showing a state where the cable tow rope is being pulled by the guide member.

FIG. 9 is a perspective view showing another embodiment of the cable laying device.

FIG. 10 is a perspective view showing still another embodiment of the cable laying device.

FIG. 11 is a view corresponding to FIG. 1, showing still another embodiment of the cable laying apparatus.

FIG. 12 is a view corresponding to FIG. 1, showing another embodiment of the guide support.

FIG. 13 is a diagram corresponding to FIG. 2, showing another embodiment of the guide member and the guide portion.

FIG. 14 is a view corresponding to FIG. 2, showing still another embodiment of the guide member and the guide portion.

FIG. 15 is a perspective view showing a quadruple wheel;

FIG. 16 is a front view showing a four-sided roller.

FIG. 17 is a front view showing a hanger roller.

FIG. 18 is a perspective view showing a conventional hanger.

[Explanation of symbols]

 2 Hanging wire 4, 4 'Guide member 7 Guide support 7j Opening 8 Hanger 8a First cable support 8b Second cable support 8c Engagement (horizontal axis) 10 Movement control ring 13 Cable 14 Cable tow rope 20 Support wire for gold wheels 21 Gold wheels

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takuma Takai 8 Nishinocho, Higashikojima, Amagasaki City, Hyogo Prefecture Inside Mitsubishi Electric Wire Industry Co., Ltd. Wire Industry Co., Ltd.

Claims (10)

[Claims] 1. A hanging wire that is stretched between adjacent supporting structures, and suspended in a state where relative movement of the hanging wire in the longitudinal direction of the hanging wire is regulated. A cable hanger having a cable support portion that is lowered and supports the cable along the hanging wire, the cable laying device extending along the hanging wire and pulling the cable or the cable. A guide member that pulls the rope for being supported by the cable support portion of the hanger, and is attached to the hanger wire or the hanger in a state in which relative movement in the length direction of the hanger wire is regulated, A cable laying device, comprising: a guide supporter for guiding the guide member to move along the overhead wire. 2. The cable laying device according to claim 1, wherein the guide support is hung on the wire for hanging, and the hanger is hung on the wire for hanging via the guide support. A cable laying device characterized by the above-mentioned. 3. The cable laying device according to claim 1, wherein the hanger is hung rotatably about a horizontal axis substantially perpendicular to the hanger wire. 4. The cable laying device according to claim 3, wherein the hanger is suspended substantially vertically downward with respect to the hanging wire, and the hanger is disposed on one side in the length direction of the hanging wire from this state. A cable laying apparatus, which is suspended so as to be rotatable with respect to a state of being rotated and being along a wire for hanging. 5. The cable laying device according to claim 3, wherein the hanger is hung so as to be rotatable around a wire for hanging. 6. The cable laying device according to claim 1, wherein relative rotation of the guide member about the axis extending in the length direction of the guide member with respect to the guide support member is restricted. A cable laying device supported in a state. 7. The cable laying device according to claim 6, wherein the guide member has a substantially rectangular cross section. 8. The cable laying device according to claim 6, wherein the guide support covers the periphery of the guide member in a state where the guide support has an opening in a part in the circumferential direction when viewed from the length direction of the guide member. A cable laying device, characterized in that: 9. The cable laying device according to claim 1, wherein the cable support portion of the hanger is formed in a substantially annular shape, and a part of the cable support portion is configured to be openable. Characteristic cable laying device. 10. A hanger having a cable support portion with respect to a hanging wire stretched between adjacent support structures in a state in which relative movement in the length direction of the hanging wire is regulated. A cable laying method for hanging and hanging the cable through the cable support portion of the hanger so as to be laid in a state where the cable is supported along the hanging wire, and a guide member extending along the hanging wire, A guide support that is attached in a state in which relative movement is restricted in the longitudinal direction of the hanging wire with respect to the hanging wire or hanger, and guides the guide member to move along the hanging wire. The cable or the cable pulling rope for pulling the cable is moved by the guide member guided by the guide support while moving the cable or the cable pulling rope along the wire for hanging. By pulling so as to be supported in the cable supporting portion of the hanger, cable installation method characterized by laying the cable.