JP2002247743A - Method and bushing for support cable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To support a plurality of cables 22a to 22d with high efficiency at a tall structure such as a steel frame for constituting an antenna tower, even when an installation space is limited. SOLUTION: The cables 22a to 22d are grasped inside a plurality of support holes 21a to 21e provided on a cable support 16 for supporting the steel frame via bushings 23a to 23c. The cables 22b, 22c are supported two by two in the support holes 21a to 21e provided with respective bushings 23b, 23b with the cross sections of the inner peripheries of part of the bushings 23b, 23 formed into 8-shaped characters. A larger number of cables 22a to 22d can be supported which is more than that of support holes 21a to 21e, thereby solving the problem.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION A cable supporting method and a cable supporting bushing according to the present invention are used for supporting an intermediate portion of a plurality of cables with respect to a cable laying steel frame provided in an antenna tower. I do.

[0002]

2. Description of the Related Art In many cases, various transmitting and receiving antennas are installed at the upper end of a tall antenna tower such as a steel tower in order to improve the communication state. Between the antenna installed at the upper end of such an antenna tower and the base station installed on the ground, a power cable for supplying power to this antenna and a signal cable for transmitting a signal for communication or control are provided. Need to be installed. In order to install a plurality of cables on the antenna tower for such a purpose, a cable supporting device for supporting the middle part of the plurality of cables arranged in the vertical direction with respect to the antenna tower is required. become.

As a cable support for constituting such a cable support device, Japanese Patent No. 2954841 describes a cable support having a structure as shown in FIGS. In the structure of the first example shown in FIGS. 15 and 16, one or more (two in the illustrated example) are provided between the base element 1 and the tip element 2 respectively. A cable support 4 is constituted by sandwiching the intermediate elements 3 and 3.
Receiving recesses 5, 5 are provided in the base halves on both sides of the base-side element 1 and the intermediate elements 3, 3, respectively.
And locking hooks 6 at both ends of the base end surface of the tip side element 2;
6 are provided. In a state where the above-mentioned elements 1 to 3 are combined, the hooks provided at the distal end of each of the hooks 6, 6 engage with the locking recesses provided in the receiving recesses 5, 5, and the adjacent element It prevents that 1-3 are separated from each other.

[0004] A plurality of locations on the distal end side surface of the proximal end element 1, the proximal end side surface of the distal end side element 2, the distal end side of each of the intermediate elements 3, 3 and both end surfaces on the proximal end side ( The recesses 7a and 7b each having a semicircular cross-sectional shape are formed at each of three locations (in the illustrated example, three locations). In a state where the above-mentioned elements 1 to 3 are combined, these concave portions 7a and 7b are combined with each other to form circular support holes 8a and 8b.
In addition, a locking groove 9 is formed in the circumferential direction at an intermediate portion between some of the recesses 7a, 7a having a relatively large inner diameter. In a state where the above-described cable supporting device is assembled, a semi-cylindrical cushion rubber 1 as shown in FIG.
The engaging ridge 11 formed on the outer peripheral surface of the engagement member 11 engages.

[0005] Each of the elements 1 to 3 as described above comprises the cushion rubber 10 and a plurality (three in the illustrated example) of belts 1.
A cable supporting device is constructed together with the cable 2 and 12, and FIG.
As shown in (1), a plurality of cables 13a to 13c are supported by a cable-laying steel frame 14 provided in the antenna tower. That is, the large-diameter cables 13a, 13a are directly inserted (without the cushion rubber 10) inside the large-diameter support holes 8a, 8a provided between the base-side element 1 and the intermediate-side element 3. Hold. Also, between the intermediate elements 3, 3;
In addition, cables 13b, 13b having a medium outer diameter are placed inside the large-diameter support holes 8a, 8a, which are present between the intermediate element 3 and the distal-end-side element 2, and the cushion rubber 1
Hold through 0,10. Further, the small-diameter cable 13c is directly gripped (without the cushion rubber 10) inside the small-diameter support hole 8b existing between the adjacent elements 1 to 3.

The plurality of cables 13a
The cable support 4 gripping 13 c is connected to the steel frame 14 by the belts 12, 12. On this occasion,
Engagement collar 1 formed at the upper end of the base end surface of base-side element 1
5 is placed on the upper surface of the steel frame 14 so that the proximal element 1 does not fall down to the steel frame 14. or,
By tightening the belts 12, 12, the elements 1 to 3 are pressed against the steel frame 14 with a sufficiently large force. As a result, the cable support 4 composed of these elements 1 to 3 is fixedly connected to the steel frame 14,
The outer peripheral surface of the intermediate portion of each of the cables 13a to 13c is suppressed by the support holes 8a and 8b directly or via the cushion rubbers 10 and 10, respectively. As a result, an intermediate portion of each of the cables 13a to 13c is supported by the steel frame 14.

Further, the second structure of the conventional structure shown in FIGS.
In the case of the example, the locking flange 15 as in the above-described first example is not provided on the base end surface of the base side element 1a. Instead, the base end side element 1a is replaced with a steel frame having a U-shaped cross section. 14 inside. The structure for supporting the plurality of cables 13a to 13c with respect to the cable support 4a including the proximal element 1a is the same as that of the first example described above.

[0008]

The number of cables that must be supported by the antenna tower varies according to the number of antennas provided at the upper end of the antenna tower. That is, it is necessary to provide a plurality of large-diameter and medium-diameter cables and one or more small-diameter cables in the antenna tower according to the number of antennas.

In any case, due to the development of information technology in recent years, the demand for installing more antennas at the upper end of the antenna tower is increasing. When the number of antennas installed at the upper end of the antenna tower is increased in this manner, two sets of cable supports 4 and 4a are provided to support a large number of cables to the antenna tower by the above-described conventional structure. Alternatively, it is necessary to increase the number of intermediate elements 3 constituting the cable supports 4 and 4a. However, in any case, not only is the installation work troublesome, but also the installation space is increased, so it may be difficult depending on the structure and size of the antenna tower.

In view of such circumstances, the method of supporting a cable according to the present invention minimizes the complexity of installation work even when the number of cables increases, and further increases the installation space. It was invented to prevent it. Further, the cable supporting bushing of the present invention can easily perform the operation of supporting two cables inside one support hole as in the case of carrying out the cable supporting method of the present invention. It was invented to do so.

[0011]

According to the cable supporting method and the cable supporting bushing of the present invention, the cable supporting method according to claim 1 has at least one supporting hole through which the cable can be inserted. The cable support having the support is fixed to the fixed portion, and a bushing made of an elastic material is elastically provided between the inner peripheral surface of the support hole and the outer peripheral surface of the intermediate portion of the cable inserted inside the support hole. The cable is supported by the fixed portion by being provided in a state of being compressed. In particular, in the method for supporting a cable according to the present invention, a bushing having a shape capable of gripping an intermediate portion of a plurality of cables is used as a bushing mounted inside at least a part of the support holes among the support holes. I do. The cable support allows the cable to be freely supported at the fixed portion by more than the number of support holes provided in the cable support.

The cable supporting bushing described in claim 2 is made of an elastic material, and is formed adjacent to an outer peripheral surface shape which can be attached to the inside of the support hole provided in the cable support without rattling. And an inner peripheral surface having an eight-shaped cross section that can freely grip the two cables arranged without being loose. Then, preferably, as described in claim 3, the whole is integrally formed, and only one portion of the portion whose thickness in the radial direction is increased corresponding to the constricted portion of the figure 8 is formed from the inner peripheral surface. A cut is made to reach the outer peripheral surface.

[0013]

According to the cable supporting method of the present invention configured as described above, it is possible to support more cables than the number of supporting holes of the cable supporting tool. For this reason, even when the number of cables increases, the complexity of the installation operation can be minimized, and the installation space can be prevented from increasing. Further, according to the cable supporting bushing according to the second aspect, the two cables can be reliably supported inside the support holes without rattling. Furthermore,
In the case of the cable supporting bushing described in claim 3, the cable supporting bushing is fitted to two cables to be supported in the same support hole in advance, and the cable supporting bushing is connected to the cable. It becomes difficult to fall off from the two cables. Therefore, the operation of supporting these two cables in the same support hole can be performed more easily.

[0014]

FIG. 1 shows a first embodiment of the present invention, in which six large-diameter cables, twelve medium-diameter cables, and one small-diameter cable are used. 2 schematically illustrates a state in which the present invention is implemented in order to support a total of 21 cables with respect to the antenna tower. The cable support 16 includes four intermediate elements 19 a to 19 d provided between a proximal element 17 and a distal element 18. Recesses 20, 20 having a semicircular cross-sectional shape are formed in opposing portions of each of the elements 17, 18, 19 a to 19 d. Each of the above elements 1
In a state where 7, 18, 19a to 19d are combined, these concave portions 20, 20 are combined with each other to form circular support holes 21a to 21e.

Inside the support holes 21a to 21e, intermediate portions of one or two cables 22a to 22d are respectively held by bushings 23a to 23c made of an elastic material such as an elastomer such as rubber. ing. Of these bushings 23a to 23c, three bushes between the proximal element 17 and the adjacent first intermediate element 19a
Support holes 21a, 21a, the first intermediate element 19a and the second intermediate element 19 adjacent thereto.
b, a bushing 23 installed inside a total of six support holes 21a, 21b of three support holes 21b, 21b.
As a and 23a, relatively thin and cylindrical ones are used. And each of these bushings 23a, 23a
As a result, a total of six support holes 21a and 21b
, Six large-diameter cables 22a, 22a, one for each of the support holes 21a, 21b, are gripped in total.

On the other hand, the second intermediate element 1
The three support holes 21c, 21c between the third intermediate element 19c and the third intermediate element 19c adjacent to the third intermediate element 19c and the fourth intermediate element 19d adjacent to the third intermediate element 19c. A total of 6 of the three support holes 21d, 21d between
As the bushings 23b, 23b installed inside the support holes 21c, 21d, these support holes 21c, 21d
The outer peripheral surface shape that can be attached to the inside of the
A shape having a character-like inner peripheral surface shape is used. Then, by the bushings 23b, 23b, the medium-diameter cables 22b, 22b are inserted into the support holes 21c, 21 inside the three support holes 21a, 21b in total.
A total of 12 grippers are held, two for each d.

Further, three support holes 21e, 21e are provided between the fourth intermediate element 19d and the front-end-side element 18.
Of these, a bushing 23b having an inner peripheral surface shape having the figure-eight-shaped cross section and a cylindrical bushing 23c having a relatively thick wall are provided inside the two support holes 21e, 21e. Then, the bushing 23b having an inner peripheral surface shape having a figure-eight-shaped cross section is used to insert the support hole 21e inside the support hole 21e.
The other two cables 22c, 22c
Is gripping. On the other hand, the small-diameter cable 22d is held inside the thick cylindrical bushing 23c. In the case of this example, the three support holes 21
No bushing or cable is installed inside the remaining one support hole 21e of the e and 21e, and the support hole 21e is left empty.

As described above, according to the cable supporting method of the present invention, a total of 21 cables 22a to 21e are provided in the cable supporting member 16 for a total of 15 supporting holes 21a to 21e. 22d can be supported. For this reason, even when the number of cables is increased, it is possible to minimize the complexity of the installation work and prevent the installation space from increasing.

Next, FIGS. 2 and 3 show the bushings 23a and 2a.
3b shows a specific example. First, FIG. 2 corresponds to claim 2, and as shown in FIG.
c, two cables 22b, 22b for each 21d (or two cables 22c, 22c in one support hole 21e).
22c) show two examples of a bushing 23b for gripping (22c). These two bushings 23b ₁ and 23b ₂ are integrally made of rubber, which is an elastic material, and can be freely attached to the inside of the support holes 21c to 21e (see FIG. 1) provided in the cable support 16 without rattling. , Cylindrical outer peripheral surface shape and two cables 22b and 22c arranged adjacent to each other
(See FIG. 1). In addition, these, bushing 23b ₁ shown in FIG. 2 (A), further those corresponding to claim 3, in correspondence with the constricted portion of the figure eight is a cross-sectional shape of the inner peripheral surface, the bushing 23b _A cut 24a extending from the inner peripheral surface to the outer peripheral surface is provided only at one portion of the portion where the thickness in the radial direction is largest. On the other hand, the bushing 23b ₂ shown in FIG.
Corresponding to one end of the inner cross-sectional shape of the peripheral surface is 8-shaped, cut only one point of the portion in which the thickness in the radial direction of the bushing 23b ₂ is smallest, reaching from the inner peripheral surface to the outer peripheral surface 24b is provided.

Each of the two types of bushings 23b ₁ and 23b ₂ shown in FIGS. 2A and 2B has two cables 22b and 22b for each of the support holes 21c and 21d.
(Or two cables 22 in one support hole 21e).
c, 22c). In this case, the two cables 22b, 22b (or the two cables 22c, 22c) are arranged in the support holes 21c, 21d (or in the one support hole 21e). Prior to this, the cable 22b (22c)
To the middle part of. And, the second and third intermediate elements 19b and 19c are also the same,
Fourth intermediate elements 19c and 19d are connected to each other, and a fourth intermediate element 19d and the front-end-side element 18 are connected to the respective recesses 20 and 2 formed in the respective elements 19b to 19d and 18.
The bushings 23b ₁ and 23b ₂ are joined so as to surround the bushings 23b ₁ and 23b ₂ . By this operation, each of the cables 22
b, 22c, and in each support hole 21C～21e, it can be gripped through the bushing 23b _1, 23b _2.

In this manner, each of the cables 22b, 22
The c in a state of gripping in each support hole 21C～21e, above two bushings 23b _1, of 23b ₂ functions are the same, the surface facilitated the assembly of the cable support system for steel 14 from the better of the bushing 23b ₁ shown in FIG. 2 (a), preferred over the bushing 23b ₂ shown in also (B). The reason is as follows.

Each of the bushings 23b ₁ and 23b ₂ can be used to connect the _two cables 22b and 22b (or the two cables 22c and 22c) to the support holes 21b.
Prior to being placed in c, 21d (or in the support hole 21e), the cable 22b (22c) is externally fitted to an intermediate portion thereof. To facilitated the assembly operation, it is preferable that the bushing 23b _1, 23b ₂ which is fitted to an intermediate portion of the cable 22b (22c) is so as not move displaced from the predetermined position in this manner. For this purpose, it is preferable that the bushings 23b ₁ and 23b ₂ be pressed against the inner peripheral surface of the cable 22b (22c) based on their elasticity. Further, a bushing 23b externally fitted to an intermediate portion of the cable 22b (22c).
It is important to prevent the cables ₁ and 23b ₂ from falling off from the cable 22b (22c) in order to ensure the safety of work at a high place.

[0023] To meet the these requirements, the bushing 23b _1, 23b ₂ cuts 24a provided at one place in the circumferential direction, the force required to extend the 24b is large, in other words, the bushing 23b _1, it is necessary that the direction of the elasticity to reduce the diameter of 23b ₂ is large. In such assumption, the bushing 23b ₁ shown in FIG. 2 (A), also when comparing the bushing 23b ₂ shown (B), the direction of the bushing 23b ₁ shown in FIG. 2 (A) above Obviously meeting the requirements. If What becomes, this, in the case of the bushing 23b ₁ is short distance to cut 24a from the thinned portion having a hinge portion when the diameter increases hardly spread this cut 24a, also the inner diameter itself of the bushing 23b ₁ Because it is hard to spread.

However, the bushing 23 shown in FIG.
Even b _2, so long as those are conditions that can increase the elasticity of the rubber, it can be employed. Conversely, a bushing 23b ₁ shown in FIG. 2 (A), stable improvement of the gripping strength at facilitating the mounting state of the mounting operation to between the outer peripheral surface and the inner peripheral surface of the support hole of the cable DOO for the purpose of achieving, even by reducing the elasticity of rubber than in the case of the bushing 23b ₂ shown in FIG. 2 (B), it is possible to satisfy the above-mentioned requirements. As a result, in each of the support holes 21c and 21d (or in the support hole 21e).
The two cables 22b, 22b (or the two cables 22c, 22c) can be easily and reliably supported. Furthermore, as shown in FIG. 2 (C), Using bushing 23b ₃ having a gap 39 for ventilation in central, thereby reducing the wind pressure applied to the cable supporting portion during high winds.

Next, FIG. 3 shows an example of a bushing 23a for gripping one cable 22a in the support holes 21a and 21b (see FIG. 1). This bushing 23
“a” is made of an elastic material in a cylindrical shape, and forms a cut 24c at one location in the circumferential direction that connects the inner and outer peripheral surfaces to each other. Such a bushing 23a is provided at an intermediate portion between the cables 22a, 22a.
Prior to supporting the 2a and 22a in the support holes 21a and 21b, they are externally fitted. The cable 22d
Bushing 23c for supporting the inside of the support hole 21e
(FIG. 1) also has the same configuration as the bushing 23a except that the thickness in the radial direction is increased and the inner diameter is reduced.

Next, FIGS. 4 to 10 show one example of a specific structure of the cable support 16 and the bushing 23a used for carrying out the cable supporting method of the present invention. The present invention can be carried out by using the conventional structure shown in FIGS. 15 to 19, but can also be carried out by the following structure. In order to clarify the correspondence between the constituent members, the same parts will be described using the same reference numerals as those in FIG. The cable support 16 includes four intermediate elements 19a to 19 between a proximal element 17 as shown in FIG. 7 and a distal element 18 as shown in FIG. 9, respectively. 19d. These elements 17, 1
8, 19a to 19d, portions facing each other include:
Concave portions 20, 20 each having a semicircular cross section are formed. Each element 1 except for the proximal element 17
8, 19a to 19d, a guide column 25 inserted into a guide hole formed in an opposing portion of a mating element and a locking hook 26 inserted into a locking hole are protrudingly provided at both ends. ing.

When assembling the elements 17, 18, 19a to 19d, the guide post 25 is inserted into the guide hole of the adjacent counterpart element and the locking hook 2
6 into the locking hole of the mating element, and the locking hook 2
6 is elastically engaged with a locking step provided on the projection of the locking hole. As a result, the adjacent elements 17, 18, 19
a to 19d are non-separably coupled to each other (combined as shown in FIGS. 4 to 6) to form the cable support 16. In the state where the cable support 16 is configured in this manner, the concave portions 20 are combined with each other to form circular support holes 21a to 21e. Each of these support holes 2
Among the bushings mounted inside 1a to 21e, for example, a large-diameter cable 22 is inserted inside the support holes 21a and 21b.
a (see FIG. 1) for holding one bushing 23a
As shown in FIG. 10, a pair of bushing elements 27 each having a semi-cylindrical shape are formed into a cylindrical shape by abutting both circumferential end surfaces thereof. Further, a plurality of ridges 28, 28 are formed on the inner peripheral surface of the bushing 23a, and while these ridges 28, 28 are elastically deformed,
The outer peripheral surface of the intermediate portion of the cable 22a can be suppressed.

In the illustrated example, each of the recesses 20, 20
Of the recesses 20, 20 formed in the proximal element 17
, Except for the axial direction of the inner peripheral surface of each recess 20 (FIGS. 4 and 7).
9 to 9, the vertical direction in FIGS. 5 to 6) a circumferential groove at an intermediate portion, and axial grooves 30, 30 near both ends in the circumferential direction.
Each is formed. Of these, the circumferential groove 31 has a circumferential ridge 31 formed on the outer peripheral surface of each of the bushing elements 27, 27, and the axial groove 30 has a similar axial ridge 32, 32, respectively. It is elastically engaged. In this manner, in a state where the respective grooves 30 and the respective ridges 31 and 32 are engaged, the respective bushing elements 27 and 27 do not accidentally fall out of the respective concave portions 20 and 20. Similar concave grooves are also formed in the concave portions 20 formed in the base end element 17 to prevent the bushing elements 27 from falling off. However, the axial grooves of the concave portions 20, 20 of the proximal element 17 are not shown in FIG. Accordingly, the recesses 2 of the respective elements 17, 18, 19a to 19d constituting the cable support 16 are provided.
The bushing elements 27, 27 are mounted in advance in 0, 20 so that the cable supporting work at a high place can be easily performed. In addition, the medium-diameter cables 22b and 22c
And a bushing 23c (FIG. 1) for holding two small-diameter cables 22d are similarly configured except for changing the shape of the inner peripheral surface.

Each of the elements 17, 18, 19a-1 as described above
9d, and the recesses 2 of these elements 17, 18, 19a to 19d as described above.
The bushing 23a (and bushings 23b and 23c similarly configured) attached to the cable 2
2a to 22d (see FIG. 1 for 22d)
As shown in FIG. 1, it is supported by a steel laying cable 14 provided on the antenna tower. That is, each of the above bushings 2
The cable support 16 supporting the cables 22a to 22d through 3a to 23c is connected to the locking flange 33 formed at the upper end of the base end face of the base end element 17 as shown in FIG. In a state where the cable support 16 is locked to the upper edge of the steel frame 14, the cable
4 on the outer surface. As a result, each cable 2
2 a to 22 d are supported by the steel frame 14 via the bushings 23 a to 23 c and the cable support 16.

The bushings 23a to 23c for holding the cables 22a to 22d in the support holes 21a to 21e of the cable support 16 have not only the above-mentioned shapes and structures but also various structures. Anything can be used. For example, a bushing 35 schematically shown in FIG. 12 has a pair of bushing elements 27a, 27a each having two concave portions 29, 29 each having a semicircular cross-sectional shape.
To the two cables 22b and 22
c (see FIG. 1) can be gripped freely without play. Regarding the bushing 35 shown in FIG. 12 as well, by providing a clearance for ventilation at the center, the wind pressure at the time of strong wind can be reduced.

A bushing unit 36 schematically shown in FIGS.
By connecting 7, 37 by connecting portions 38, 38,
It is designed to be handled as one. The width dimension of each of the connecting portions 38, 38 is smaller than the axial dimension of each of the bushings 37, 37. In such a bushing unit 36 as well, in the installed state, a gap is present between adjacent cables to reduce wind pressure in strong winds. Such a bushing unit 36
A concave portion for accommodating the connecting portions 38, 38 is formed in a middle portion in the height direction of the abutting surfaces of the respective elements constituting the cable support member for assembling the cable support. The butting is free. Accordingly, the rigidity and strength of the cable support to which the bushing unit 36 is assembled are not insufficient due to the provision of the connecting portions 38, 38. The bushings 37, 3
The structure 7 is not limited to a structure capable of supporting one cable as shown in the figure, but may be a structure capable of supporting two cables by forming the concave portions 29, 29 as shown in FIG.

[0032]

The cable supporting method of the present invention is configured and operates as described above, so that even when the number of cables increases, the installation work is minimized,
In addition, the installation space can be prevented from increasing. Further, the cable supporting bushing of the present invention contributes to facilitating the operation of supporting two cables inside one support hole.

[Brief description of the drawings]

FIG. 1 is a schematic plan view showing a state in which a cable supporting device supports more cables than the number of support holes provided in the cable supporting device by the supporting method of the present invention.

FIG. 2 is a schematic plan view showing three examples of a bushing structure for supporting two cables in one support hole.

FIG. 3 is a schematic plan view showing a structure of a bushing for supporting one cable in one support hole.

FIG. 4 is a plan view showing an example of a specific structure of a cable support used for carrying out the present invention.

FIG. 5 is a left side view of the same.

FIG. 6 is a right side view of the same.

FIG. 7 is a plan view of a proximal element constituting the cable support.

FIG. 8 is a plan view of the intermediate element.

FIG. 9 is a plan view of the tip-side element.

FIG. 10 is a perspective view showing an example of a bushing to be assembled to the cable support shown in FIGS.

FIG. 11 is a side view showing an assembled state of the antenna tower to a steel frame.

FIG. 12 is a schematic plan view showing another example of the bushing.

FIG. 13 is a schematic plan view showing an example of a bushing unit.

FIG. 14 is a front view of the same.

FIG. 15 is a perspective view showing a first example of a conventionally known cable support device.

FIG. 16 is an exploded perspective view of the same.

FIG. 17 is a perspective view of a cushion rubber to be attached to the cable support device.

FIG. 18 is a perspective view of a proximal element incorporated in a second example of a conventionally known cable support device.

FIG. 19 is a perspective view of a cable support device configured using the proximal element.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1a Base end element 2 Front end element 3 Intermediate element 4, 4a Cable support 5 Reception recess 6 Locking hook piece 7 Depression 8a, 8b Support hole 9 Locking groove 10 Cushion rubber 11 Locking protrusion 12 Belt 13a, 13b, 13c Cable 14 Steel 15 Locking Flange 16 Cable Support 17 Base Element 18 Front Element 19a, 19b, 19c, 19d Intermediate Element 20 Concave 21a, 21b, 21c, 21d, 21e Support Hole 22a, 22b, 22c, 22d Cable 23a, 23b, 23c Bushing 24a, 24b, 24c Cut 25 Guide post 26 Locking hook 27, 27a Bushing element 28 Ridge 29 Recess 30 Axial groove 31 Circumferential ridge 32 Axial direction Ridge 33 locking collar 34 belt 35 bushing 36 bushing unit 37 bushing 38 Connection 39, 39a Clearance

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Tsutomu Aso 1008 Niibori, Kumagaya-shi, Saitama Mitsubishi Cable Industries, Ltd. Kumagaya Works (72) Inventor Takashi Kaneko 3-4-1 Marunouchi, Chiyoda-ku, Tokyo (Shin Kokusai) Building) Mitsubishi Cable Industries, Ltd. Tokyo Office F-term (reference) 5G367 DA01 DB16 DC01 DC03

Claims (3)

[Claims] A cable support having at least one support hole through which a cable can be inserted is supported and fixed to a fixed portion, and an inner peripheral surface of the support hole and an inside of each of the support holes are provided. By providing a bushing made of an elastic material between the inserted cable and the outer peripheral surface of the intermediate portion in an elastically compressed state, in the method of supporting a cable supporting the cable at the fixed portion, As a bushing to be mounted inside at least a part of the support holes of the support holes, by using a bushing having a shape capable of gripping an intermediate portion of the plurality of cables, the cable support tool fixes the fixed portion, A method of supporting a cable, wherein the cable supporting device is capable of supporting more cables than the number of support holes. 2. An outer peripheral surface shape made of an elastic material, which can be freely attached to the inside of a support hole provided in a cable support without rattling, and grips two adjacently arranged cables without rattling. A cable supporting bushing having a free-form inner peripheral surface shape having an eight-shaped cross section. 3. An inner peripheral surface is formed only in one part where the thickness in the radial direction is increased corresponding to a constricted portion having an 8-shaped cross section of the inner peripheral surface. The bushing for supporting a cable according to claim 2, wherein a notch extending from the cable to the outer peripheral surface is provided.