JP2000059965A - Cable supporting line, cable supporting device and cable supporting method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely support a cable for a supporting line without use of a cable hanger without relation to size of cable and the number of cables to be supported. SOLUTION: In the cable supporting line used, a winding line portion 3 is formed in every suspending support position of a cable 8 by previously winding a supporting member 2, which is formed of a rust-proof steel wire, to the supporting line 1 itself in the predetermined winding direction and winding pitch. One winding line portion is structured by an S-twisting portion 31 in which the supporting member is closely wound in the S-twisting direction, a returning portion 32 which is returned at the suspending support position in the Z-twisting direction of the inverse direction and a Z-twisting portion 33 in which the supporting member is closely wound in the Z-twisting direction. The returning portion 32 is wound back in the length corresponding to the circumference length of the cable, the cable is wrapped from the lower side with the winding-back portion and the returning portion 32 at the end portion is engaged with the supporting line itself by means of a hook member 9. In the case of laying an additional cable, the existing and additional cables can be supported by suspending these cables only by elongating the winding-back portion through further winding back of the S-twisting portion and Z-twisting portion.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable support line used for supporting a cable laid between two adjacent support points of a utility pole, a tower, a building, and the like, and a cable supported by the support line. The present invention relates to a cable supporting device to be used and a method for supporting the cable.

[0002]

2. Description of the Related Art Conventionally, in order to lay a cable aerial in the air between two support points, a cable support line for supporting the cable is stretched between the two support points. It is performed by suspending and supporting the cable at predetermined intervals in the longitudinal direction. In general, a cable hanger is used to suspend and support this cable on a support wire. That is, as shown in FIG. 9, an example of laying using the standard cable hanger 12, the cable 8 is temporarily laid along the above-mentioned stretched support wire 11, and the operator attaches the cable hanger 12 to the cable 8. The cable 8 is suspended from the support wire 11 by fitting both ends 121 and 122 of the cable hanger 12 to the support wire 11 from above. Then, by repeating such an operation at regular intervals in the longitudinal direction of the cable 8, the cable 8 is suspended and fixed to the support wire 11. Here, a steel stranded wire is usually used as the support wire.

On the other hand, when an additional cable 8 'is laid on the support wire 11, the additional cable 8' is arranged along the existing cable 8, and the cable hanger 12 of the existing cable 8 is removed. Then, the additional cable 8 'is inserted into the removed cable hanger 12, and the cable hanger 12 is attached to the support wire 11 again. At this time, if the diameter of the additional cable 8 'is larger than that shown in the figure and the size of the cable hanger 12 is smaller than that obtained by combining the existing cable 8 and the additional cable 8', the existing cable An operation of newly attaching a cable hanger of a size large enough to fit the cable 8 and the additional cable 8 'is performed.

[0004]

In the above-described conventional cable supporting operation, it is necessary to mount a large number of cable hangers in a high place and in the air, so that it is necessary for an operator to lift a large number of cable hangers. There is. On the other hand, since the cable hanger is bulky, it cannot be lifted so much, and it is necessary to replenish the cable hanger during the work. For this reason, the cable laying work is complicated and inefficient. Also, when adding cables and laying them in multiple strips, it is necessary to replace them with new larger cable hangers,
The work for additional laying is more complicated.
Further, the position where the cable hanger is hung by the cable hanger is initially set at a fixed interval (for example, 30 to 60 cm). There is also a risk of deviation.

[0005] The present invention has been made in view of such circumstances, and an object of the present invention is to enable a cable to be supported on a support wire without using a cable hanger, and to support the cable. An object of the present invention is to provide a cable support line, a cable support device, and a cable support method that can reliably support a cable regardless of its size and number.

[0006]

Means for Solving the Problems The first invention is claim 1.
As described above, the present invention is directed to a cable support line that is stretched between two support points and that suspends and supports a cable at predetermined intervals in a longitudinal direction. As the support line for the cable, a support line main body extending in the longitudinal direction, and a linear support member around a longitudinal axis with respect to a support line main body in a predetermined range in the longitudinal direction centered on the hanging support position of the cable. And a winding wire portion formed by being sequentially wound in the longitudinal direction along the outer peripheral surface of the support wire main body. And the said winding wire part shall be provided with the following S twisted parts, the folded part, and the Z twisted part.
That is, as the S twist portion, the support member is wound in the S twist direction in a range from any one side in the longitudinal direction of the support wire body to the hanging support position with the hanging support position interposed therebetween. As a folded portion, the supporting member is folded so that the winding direction of the supporting member is changed from the S twist direction to the Z twist direction at the hanging position, and the supporting member is continuously formed from the folded portion as the Z converting portion. It is assumed that it is wound in the Z twist direction in the range from the hanging support position to the other side in the longitudinal direction.

Here, the "support wire main body" may be, for example, a tensile strength that can be stretched between two support points composed of two telephone poles and can support a cable under a predetermined tension. , For example, a steel stranded wire may be used. Further, the "linear support member" has a softness (rigidity) enough for an operator to be able to rewind from the turn-back portion, and when the wire is wound around the support wire body to form two winding points, Rigidity required from the viewpoint of handling, such as hardness (rigidity) that cannot be easily unraveled during handling during the transfer process or the work of stretching between the two support points, and the cable can be sufficiently suspended and supported. It is preferable to have a material that satisfies both the degree of tensile strength. In addition, since it is installed outdoors, it is preferable that it is subjected to a rust-proof treatment such as galvanization or resin coating (for example, polyethylene coating or vinyl chloride coating).
Specific materials for the support member include stainless steel, copper steel,
An aluminum alloy, ordinary steel, or the like can be used, and as a form, a wire, a band, a tape-like material, or the like can be used. As a supporting member in consideration of cost and availability, a member obtained by applying a resin coating to an ordinary steel wire having a predetermined diameter may be mentioned.

[0008] The above-mentioned "winding wire portion" may be formed at each hanging support position at a predetermined interval with respect to the longitudinal direction of the support wire main body. Each of the supporting members constituting the two winding portions may be continuously wound around the outer peripheral surface of the support wire main body in a range between two adjacent winding portions. Thereby, the formation of the winding wire portion with respect to the support wire main body, that is, the production of the cable support wire in the present invention can be continuously and efficiently performed. In this case, it is preferable that the winding pitch of the support member in the winding wire portion is set densely, while the winding pitch of the support member in the range between the winding wire portions is roughly set. As a result, an increase in the weight of the support member in a portion unnecessary for the support wire is suppressed as much as possible while improving the manufacturing efficiency.

In the case of the first aspect of the invention, the support wire is stretched between the two support points, and the cable is temporarily held at a position below the support line. By unwinding (unwinding) the twisted portion and the Z-twisted portion by the length corresponding to the diameter (perimeter) of the cable, the unwinding portion hanging down from the support wire main body with the unwound folded portion as a tip is provided. Form. Next, the cable is held by the rewinding portion from below, and the folded portion extending upward is locked to the support wire main body by using a locking tool such as a hook. It will be hung at the position of the turnback. In this way, it is possible to support the suspension of the cable using the support member wound in advance on the support wire, that is, since the support wire itself has a hanger function, the cable Cable hanger can be omitted. Thus, it is not necessary to carry a large number of cable hangers for suspending and supporting the cables, thereby facilitating the cable laying operation. Here, since the locking tool used to lock the folded portion to the support wire main body only needs to hook the folded portion, it can be extremely small compared to a conventional cable hanger that holds a cable, and is easy to carry. It doesn't take time.

In addition, by adjusting the number of windings for rewinding the S-twisted portion and the Z-twisted portion, even if the cable diameter is large or small, the length of the unwound portion is set to a length capable of holding the cable. It is possible to make
Regardless of the diameter of the cable, the cable can be suspended and supported. Therefore, even when additional cables are laid, the S-twisted portion and the Z-twisted portion are further rewound according to the diameter and the number of the cables to be laid, and the unwinding portion is used for both the existing cable and the additional laid cable. Just make it long enough to support it,
The cable can be additionally laid without requiring a new member and regardless of the diameter and the number of the laid cable.

Furthermore, even if the winding wire portion is unwound from the folded portion, the longitudinal position of the folded portion with respect to the support wire main body remains unchanged. Therefore, the hanging position with respect to the cable is previously formed with the winding wire portion. It is possible to maintain the position of the folded part of the cable, that is, it can be reliably maintained at a fixed position, and the hanging position of the cable does not fluctuate due to the influence of wind etc. Become.

According to a second aspect of the present invention, as set forth in claim 3, 2
The present invention is directed to a cable support device including a support line stretched between two support points and suspending and supporting a cable at predetermined intervals in a longitudinal direction of the support line. In this device, the support wire main body extending in the longitudinal direction and the support wire main body in a predetermined range in the longitudinal direction centered on the hanging support position of the cable are linear support members around the longitudinal axis thereof. It is provided with a winding wire portion formed by being sequentially wound in the longitudinal direction along the outer peripheral surface of the main body, and a hook member for locking a part of the supporting member of the winding wire portion to the support wire main body. . As the winding wire portion, the support member is wound in the S twist direction in a range from any one side in the longitudinal direction of the support wire main body to the hanging support position with the hanging support position interposed therebetween. A twisted portion, a folded portion that is folded so that the winding direction of the support member is changed from the S twist direction to the Z twist direction at the hanging position, and the hanging member is supported by the support member continuously from the folded portion. And a Z-twisted portion wound in the Z-twist direction from the position to the other side in the longitudinal direction. In addition, as the hook member, the folded portion in the state in which the folded portion is unwound from the outer peripheral surface of the support wire main body and the support member having the folded portion as the tip holds the circumference of the cable from below is the support wire. It is configured to be locked to the main body.

[0013] Here, the interpretation of the above "support wire main body" or "support member", preferable material and form, etc., and
The preferred form of the "winding wire portion" is the same as in the case of the first invention. In addition, as the above-mentioned “hook member”, as described in claim 4, a first locking portion that locks to the support wire main body and a second locking portion that locks to the support member
It is preferable that the locking portion is formed of a wire material and at least one of the first locking portion and the second locking portion is configured to be detachable. That is, the first locking portion is locked in advance to the support wire main body, and the folded portion holding the cable is removably locked to the second locking portion, or the second locking portion is locked. A hook member is also wrapped around the support wire main body in a state where the stop portion is locked to the folded portion in advance, and the first locking portion is removably locked to the support wire main body after holding the cable. Alternatively, the hook member may be held by an operator independently of the support wire main body and the wrapping wire portion, and may be detachably engaged with the folded portion and the support wire main body, respectively.

In the case of the cable supporting device according to the second aspect of the invention, the cable supporting line according to the first aspect of the present invention has a configuration in which a hook member is provided as a part of the constituent elements. By performing the same operation as described in the case of the invention of the invention, in addition to being able to support the suspension of the cable without using a cable hanger, the suspension support operation of the cable, that is,
The cable laying operation can be easily and reliably performed at a fixed position regardless of the cable diameter. In addition, the additional cable laying operation can be easily and reliably performed without requiring a new member regardless of the diameter and the number of the additional cables.

According to a third aspect of the present invention, the support line is extended between two support points by using the cable support line according to the first aspect of the present invention, and a predetermined distance is provided between the extended support lines in the longitudinal direction. The present invention is directed to a cable supporting method for suspending and supporting a cable every time. In this one, the third
Rewinding the support member by a length corresponding to the diameter of the cable from the folded portion of the winding wire portion to both sides of the S twist portion and the Z twist portion; and winding the cable along the support wire. Holding the periphery of the cable from below by a rewinding support member having the folded portion as a tip while temporarily holding the cable at a position below the support line,
The step of locking the folded portion to the support wire main body is sequentially performed for each hanging position of the cable.

In the locking step, a wire material such as a wire cut to a predetermined length is used, and the wire material is bent by an operator individually into a hook shape at each hanging support position to form a folded portion. You may make it latch with respect to a support wire main body. Alternatively, a small hook may be prepared in advance using the above-described wire, and the above-described locking step may be performed using such a hook.

In the case of the cable supporting method according to the third aspect, the cable laying operation can be performed easily and easily by using the hanger function of the support wire itself according to the first aspect, without requiring any cable hanger. In addition to being able to perform the operation reliably, it is possible to support the suspension of the cable as it is, irrespective of the cable diameter and the presence or absence of additional cable installation.

[0018]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a support line for a cable according to an embodiment of the present invention, wherein 1 is a support line main body extending in the longitudinal direction (the left-right direction in FIG. 1), and 2 is continuous around the support line main body 1. The supporting members 3 and 3 wound around the supporting members 3 and 3 are winding portions formed by the supporting member 2, respectively.

The support wire main body 1 is composed of seven stranded steel wires as shown in detail in FIGS. The support member 2 is made of a resin-coated ordinary steel wire.

A support member 2 is wound around the support wire main body 1 at a predetermined winding pitch and a predetermined winding direction.
The above-mentioned wrapping wire portion 3 is placed in a predetermined range M for each longitudinal pitch L.
Are formed in advance with a relatively dense winding pitch, and the support member 2 is relatively rough for the purpose of connecting the two wound wire portions 3 and 3 in a range U between the two adjacent wound wire portions 3 and 3. It is wound at a proper winding pitch.

The longitudinal pitch L is set to a longitudinal interval (for example, 50 cm) between the hanging and supporting positions of the cable, and each of the winding portions 3 is positioned in the longitudinal direction within the range M around the hanging and supporting position. An S-twisted portion 31 is formed on one side by winding the support member 2 in the S-twist direction,
At the hanging support position, the winding direction is folded in the opposite Z twist direction from the S twist portion 31 to form a folded portion 32, and the support member 2 is Z twisted on the other side in the longitudinal direction within the above range. A Z-twisted portion 33 wound in the direction is formed. To be more specific, from the left side to the right side of the support line in FIG.
The Z-twisted portion 33 is formed by being wound in the twisting direction and also wound at a dense winding pitch in the Z-twisting direction from the left end position of the range M. Next, the folded portion 32 is formed by reversing the winding direction at the center position of the range M, and the same winding pitch as that of the Z twisted portion 33 in the S twist direction in the remaining range of the range M and The S-twist portion 31 is formed by being wound with the same number of turns. And
The range U from the right end position of the S twisted portion 31 is continuously wound from the S twisted portion 31 in the S twist direction, but the support member 2 is wound at a coarse winding pitch, and the left end of the range M at the next pitch L position. The S twisted portion 31 is formed by changing the winding pitch densely from the position. The winding direction is reversed at the center position of this range M to form a folded portion 32,
The Z-twisted portion 33 is formed in the right area, and the next area U is repeated in the same manner as described above.

The support wire around which the support member 2 is wound may be manufactured by, for example, a method as shown in FIG. That is, the reel 4 around which the support member 2 is wound is started to rotate in one direction around the axis X of the support wire main body 1, and when the rotation speed reaches a predetermined constant rotation speed and becomes stable, the support wire main body 1 is moved in one direction. The production is started by starting moving at a predetermined feed speed (to the right in FIG. 4). First, in the longitudinal direction range U, the support wire main body 1 is moved at a constant speed at a first feed speed corresponding to the coarse winding pitch of the support member 2, whereby the support member 2 is moved in the longitudinal direction range U. It is wound around the support wire main body 1 at the above coarse winding pitch. Next, when reaching the starting point (right end) of the longitudinal range M, the feed speed of the support wire main body 1 is wound from the first feed speed while the rotation speed of the reel 4 is maintained at the above-mentioned constant value. The winding speed is reduced to a lower second feed speed corresponding to the dense winding pitch of the wire portion 3, thereby forming the winding wire portion 3. In the winding step of the support member 2 and the winding step in the opposite direction, which will be described later, the support member 2 immediately after being wound on the support wire body 1 from the reel 4 is sandwiched by the support wire body 1. This is performed while the tracks are temporarily held by the caterpillars 5 and 5 arranged as described above.

Then, during the winding process of the longitudinal direction range M, the power source for the rotational power of the reel 4 is turned off. However, the reel 4 continues to rotate due to inertia even when the power is turned off, and the rotation speed gradually decreases. Therefore, as the rotation speed of the reel 4 decreases, the support wire main body 1 is wound such that the winding pitch of the support member 2 with respect to the support wire main body 1 becomes the same as the dense winding pitch.
Also gradually decreases from the second feed speed. When the rotation speed of the reel 4 is zero, that is, when the rotation is completely stopped, the feed speed of the support wire main body 1 also becomes zero or a value near zero. The feed control of the support wire main body 1 is performed in such a manner.

Next, the rotation direction of the reel 4 is reversed in a state where a part in the winding direction (the Z twisted portion 33 in the illustrated example) which has been wound so far is held so as not to be unraveled by the both tracks 5, 5. Then, the rotation of the reel 4 and the feed movement of the support wire main body 1 are restarted. Thus, after the folded portion 32 (see FIGS. 1 and 2) is formed, the S twisted portion 31 is formed. At this time, even if the power of the rotational power of the reel 4 is turned on, it takes a certain time to reach the above-mentioned constant rotational speed.
The feed speed is controlled so that the rotation speed of the reel 4 gradually reaches the second feed speed from zero until the rotation speed of the reel 4 reaches the constant rotation speed from zero. Then, when the reel 4 reaches the constant rotation speed, the support wire main body 1 is also moved at a constant speed at the second feed speed, and the S twisted portion 31 is moved.
Is formed. Then, when the end position of the longitudinal range M is reached, the feed speed of the support wire main body 1 is increased from the second feed speed to the above-mentioned first feed speed so that the winding pitch becomes coarse.

Then, winding of the next longitudinal direction range U (not shown), which is a coarse winding pitch, is performed, and when reaching the starting point of the next longitudinal direction range M (not shown), the support wire main body 1 is wound.
The above steps are repeated, for example, by lowering the feed speed from the first feed speed to the second feed speed to form the S twisted portion in the next longitudinal range M. In FIG. 4, reference numeral 6 denotes a roller for applying a predetermined tension to the support member 2, and each of the caterpillars 5 has a belt-like member stretched between a pair of rollers.

In the case of the above manufacturing method, the support wire main body 1
, A rotating mechanism of the reel 4, and tracks 5, 5 as support member holding means.

In the above description, the winding pitch is changed by making the rotation speed of the reel 4 constant and making the feed speed of the support wire main body 1 variable. Conversely, the rotation speed of the reel 4 is changed. May be varied to make the feed speed of the support wire main body 1 constant, thereby changing the winding pitch between the range M and the range U. In this case, a feed mechanism for the support wire main body 1, a variable rotation mechanism for the reel 4, and the same caterpillars 5 and 5 as described above may be used.

Next, a description will be given of a cable supporting method for aerially laying a cable using the above-described cable supporting line. Before the operation of supporting the cable on the supporting line, the supporting line is connected to two adjacent cables. A support wire extending step is performed in a state where predetermined tension is applied between utility poles. After completing the support wire spanning process, the following processes for supporting the cable are sequentially performed.

First, a cable is temporarily laid between the power poles so as to extend along the support line at a position immediately below the stretched support line. That is, a step of temporarily extending the cable is performed. Next, the cable is suspended and supported at each of the hanging support positions by performing a rewinding step, a holding step, and a locking step at each of the hanging and supporting positions at every longitudinal pitch L. To go.

In the rewinding step, the folded portion 32 of each winding portion 3 of the support wire is unwound from the support wire main body 1 to form a rewind portion 7 that hangs downward from the support wire main body 1 (FIG. 7). 2, see FIG. 3). That is, the unwinding portion 71 is obtained by unwinding only the folded portion 32, and the unwinding portion 72 is obtained by unwinding the S twisted portion 31 and the Z twisted portion 33 on both sides by one turn. , And the S twisted portion 31
By rewinding the Z twisted portion 33 and the Z twist portion 33 by another turn, a rewind portion 73 is obtained. In this way, by adjusting the number of rewinds, the support wire main body 1
As the unwinding portion 7 hanging down from the cable, an appropriate length corresponding to the diameter (perimeter) of the cable can be obtained.

Next, in the holding step, the unwinding section 7 which has been unwound so as to have the appropriate length is turned upward from the lower side of the cable 8 as shown in FIGS. The cable 8 is held by the rewinding section 7. Thereafter, in a locking step, the folded portion 32 at the tip of the rewinding portion 7 is locked to the support wire main body 1 via the hook member 9.

The above operation is repeated for each of the winding portions 3, 3,... At each longitudinal pitch L as shown in FIG. 7, so that the cable 8 is positioned along the support line at each longitudinal pitch L. , And is fixed to the support line.

Here, the hook member 9 will be described with reference to FIGS. 5 and 6. The hook member 9 is formed of a spring steel wire which has been rust-proofed by zinc plating or resin coating. It is formed to be bent so as to include a substantially annular first locking portion 91 that is detachably locked to the main body 1 and a substantially annular second locking portion that is capable of locking and disengaging the folded portion 32. It was done. Specifically, the first locking portion is formed by being spirally curved to have substantially the same diameter or a slightly smaller diameter as the support wire main body 1 with no load from its free end 91a. The second locking portion 92 is formed by being spirally curved in the reverse rotation direction from the position after one round. The second locking portion 92 only needs to have an inner diameter space enough to allow the folded portion 32 to enter, and from the viewpoint of holding the locked state, the space should be as small as possible within the range where the folded portion 32 can be inserted and removed. Is preferred. In addition, the first and second locking portions 91 and 92 have respective free ends 91a and 92a having hook members 9 of other portions.
6 and the projection state viewed from the longitudinal direction (FIG. 6)
) Is a closed ring. Such a closed ring is preferable from the viewpoint of maintaining the locked state. The engagement of the first locking portion 91 with the support wire main body 1 may be performed by pressing the first locking portion 91 against the support wire main body 1 from the gap on the free end 91a side and opening it by elastic deformation. .

In the case of the above-described cable supporting method, the unwinding step, the holding step, and the locking step of the winding wire portion 3 are performed after the temporary tying step of the cable, but the present invention is not limited to this. After the support wire is stretched, the unwinding process may be performed first, then the temporary cable bridging process may be performed, and then the holding process and the locking process may be performed. At that time, while performing the temporary bridging process,
The holding step and the locking step may be sequentially performed for each hanging support position.

In the holding step, after the rewinding portion 7 is wound at least once around the entire circumference of the cable 8, the folded portion 32 at the end is turned upward, and the folded portion 32 is supported by the hook member 9. The main body 1 may be locked. Thereby, the cable 8
Can be more reliably fixed.

FIG. 8 shows that after the cable 8 is laid by the above-described cable supporting method using the cable supporting wire,
This shows a case where another cable 8 'is newly laid. In the case of such additional laying, first, the rewinding portion 7 that suspends and supports the existing cable 8 in FIG. 7 is detached from the second locking portion 92 of the hook member 9, and then the rewinding is performed. The portion 7 is further rewound from the support wire main body 1 by an amount corresponding to the circumferential length when the additional cable 8 'and the existing cable 8 are combined, and is changed to a rewind portion 7 having a required length. Then, the cables 8 and 8 ′ are integrally held by the rewinding portion 7 having the changed length, and the folded portion 32 at the end thereof is hooked on the second locking portion 92 of the original hook member 9. The cable 8 and the additional cable 8 ′ can be integrally supported and suspended from the support wire main body 1.

[0038]

As described above, according to the cable support wire of the first aspect of the present invention, the hanger function is added to the support wire itself by the support member wound around the support wire in advance. It is possible to easily support the suspension of the cable by using the above-mentioned support wire even when working at a high place, so that the cable hanger for laying the cable can be omitted. Become. Thus, it is not necessary to carry a large number of cable hangers for hanging and supporting the cables, and the cable laying operation can be facilitated.

Moreover, the cable can be suspended and supported irrespective of the diameter of the cable by merely adjusting the number of windings of the S twisted portion and the Z twisted portion. Therefore, even when additional cables are laid, both existing and additional cables can be suspended and supported regardless of the diameter and the number of cables to be additionally laid, and new members are required. It is possible to perform additional cable laying without the need.

Furthermore, since the longitudinal position of the folded portion with respect to the support wire main body is unchanged, the hanging position with respect to the cable can be reliably maintained at a fixed position, and the hanging position of the cable fluctuates due to the influence of wind or the like. It can be suspended and supported at certain intervals.

According to the cable support device of the third aspect of the present invention, it is possible to support the suspension of the cable without using the cable hanger, and to perform the work of supporting the suspension of the cable. In other words, the cable laying operation can be performed easily and reliably regardless of the cable diameter, and in a state where a fixed position is maintained. In addition, the additional cable laying operation can be easily and reliably performed without requiring a new member regardless of the diameter and the number of the additional cables.

According to the cable supporting method of the third aspect of the present invention, the cable laying operation utilizes the hanger function of the support wire itself according to the first aspect of the present invention without requiring any cable hanger. In addition to being able to carry out easily and reliably, the suspension support of the cable can be performed as it is, irrespective of the cable diameter, the presence or absence of additional cable installation, and the like.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a cable support line of the present invention.

FIG. 2 is a partially enlarged view of FIG.

FIG. 3 is an explanatory sectional view taken along line AA of FIG. 2;

FIG. 4 is an explanatory view showing an example of a method for manufacturing the support wire of FIG.

FIG. 5 is a view corresponding to FIG. 2 in a state where a cable is suspended and supported.

FIG. 6 is an explanatory sectional view taken along line BB in FIG. 5;

FIG. 7 is a view corresponding to FIG. 1 in a state where the cable is suspended and supported.

FIG. 8 is a diagram corresponding to FIG. 7 in a state where an additional cable is suspended and supported in addition to the existing cable.

FIG. 9 is a perspective view for explaining a conventional support line for hanging and supporting a cable using a cable hanger, a conventional cable support device, and a conventional cable support method.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Support wire main body 2 Support member 3 Winding part 7 Rewind part 8 Cable 8 'Additional cable 9 Hook member 31 S twist part 32 Fold part 33 Z twist part 71-73 Rewind part 91 First locking part 92 Second Locking portion L Longitudinal pitch (interval between hanging support positions) M Range of formation of winding wire portion U Range between two winding wire portions

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Koji Tsuji 4-3 Ikejiri, Itami-shi, Hyogo Mitsubishi Electric Cable Industry Co., Ltd. Itami Works F-term (reference) 5G367 GA03 GB01 GC02 GC02 GC06

Claims (5)

[Claims] 1. A support line for a cable stretched between two support points and hanging and supporting a cable at predetermined intervals in a longitudinal direction, a support line main body extending in the longitudinal direction, and a suspension of the cable. A winding wire formed by sequentially winding a linear support member in the longitudinal direction along the outer peripheral surface of the support wire main body around a longitudinal axis of the support wire main body in a predetermined range in the longitudinal direction around the support position. The winding wire portion is configured such that the support member is wound in the S twist direction in a range from any one side in the longitudinal direction of the support wire main body to the hanging support position across the hanging support position. A folded S-twisted portion, a folded portion which is folded so that a winding direction of the support member at the hanging position is changed from the S-twisted direction to the Z-twisted direction, And a Z-twisted portion wound in the Z-twist direction in a range from the hanging support position to the other side in the longitudinal direction from the hanging support position. 2. The support member constituting each of the two winding portions is continuous with an outer peripheral surface of the support wire main body in a range between two winding portions adjacent to each other in the longitudinal direction. The supporting pitch for the supporting member in the winding wire portion is set densely, while the winding pitch of the supporting member in the range between the winding wire portions is set coarsely. line. 3. A cable support device comprising a support line extending between two support points and suspending and supporting a cable at predetermined intervals in a longitudinal direction of the support line, wherein the support line extends in the longitudinal direction. A main body, and a linear support member is arranged in the longitudinal direction along the outer peripheral surface of the support wire main body around the longitudinal axis with respect to the support wire main body in a predetermined range in the longitudinal direction around the hanging support position of the cable. A winding wire portion formed by being wound, and a hook member for locking a part of the supporting member of the winding wire portion to the support wire main body, wherein the winding wire portion sandwiches the hanging support position. The S twisted portion in which the support member is wound in the S twist direction in a range from any one side in the longitudinal direction of the support wire main body to the hanging support position, and in the hanging position. A folded portion that is folded so that the winding direction of the support member is changed from the S twist direction to the Z twist direction, and a range from the hanging support position to the other longitudinal side from the hanging support position continuously from the folded portion. And a Z-twisted portion wound in the Z-twist direction. The hook member has the folded portion unwound from the outer peripheral surface of the support wire main body, and the support member having the folded portion as a tip extends downward around the cable. A cable support device characterized in that a folded portion in a state of being held from above is locked to the support wire main body. 4. The hook member according to claim 3, wherein the hook member has a first locking portion for locking to the support wire main body and a second locking portion for locking to the support member formed of a wire. A cable support device, wherein at least one of the first locking portion and the second locking portion is configured to be disengageable. 5. A cable supporting method for extending a supporting line between two supporting points and suspending and supporting a cable at predetermined intervals in a longitudinal direction of the extending supporting line, wherein the supporting line is A support wire main body extending in the longitudinal direction, and a linear support member around a longitudinal axis of the support wire main body in a predetermined range in the longitudinal direction centered on the hanging support position of the cable, and an outer peripheral surface of the support wire main body in advance And a winding wire portion formed by being sequentially wound in the longitudinal direction along with the hanging support position from any one of the longitudinal directions of the support wire main body with the hanging support position interposed therebetween. An S-twisted portion in which the support member is wound in the S-twist direction in a range up to and a Z-twist direction in which the winding direction of the support member is changed from the S-twist direction to the Z-twist direction at the hanging position. And a Z-twisted portion wound continuously in the Z-twist direction in a range from the hanging support position to the other side in the longitudinal direction from the hung support position from the folded-back portion. From the folded portion of the winding wire portion to the S twisted portion and Z
A step of rewinding the support member over both sides of the twisted portion by a length corresponding to the diameter of the cable, and temporarily holding the cable at a position below the support line along the support line, and holding the folded portion at the end. A step of holding the periphery of the cable from below by a rewinding support member, and a step of locking the folded portion to the support wire main body in order for each hanging position of the cable. The cable support method.