JP2849983B2 - Cable laying method and cable laying device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable laying apparatus, and more particularly to a cable laying apparatus suitable for constructing a power plant, a plant, a factory, a building, and the like in which a large amount of power cables and communication cables need to be laid. .

[0002]

2. Description of the Related Art In the construction of power plants, plants, factories, buildings, and the like, laying of a large amount of power cables and communication cables may be required. Conventionally, when laying the above-described power cable or communication cable in a power plant, plant, factory, or building, a cable drum in which a cable having a length of several hundred meters to over 2,000 meters is wound is installed at the laying start position. After that, the cables were laid by pulling the cables by a large number of people on a rack provided along the cable laying route. However, the cable laying route inside the building is winding up, down, left and right in order to avoid obstacles.
In a portion having two or more bends, a state in which the cable cannot be moved occurs even if five or six people pull the cable due to a large frictional resistance.

In such a case, the cable can be moved by increasing the number of persons and forcibly pulling the cable. However, in order to damage the cable jacket, the cable is usually bent in a path for laying the cable. A person is placed in each part, and the person feeds the cable of the bent part. However, when there are many bends and the distance is long, it is difficult to work together with all the breaths, so that the work efficiency cannot be improved. So,
If there are many bends in the cable laying section and the distance is long, the sections are separated, and for each section, the cables of the length necessary for the laying of subsequent sections are brought close to each other, and The cable was laid.

[0004]

As described above, the conventional cable laying operation is inefficient because the cable is manually moved on the rack, and the cable may be damaged. Others, for example, it is not unusual for the inside of a power plant building to be at a room temperature of 50 degrees Celsius, and there is a problem that long hours of manual work in it can cause dehydration, Laying work requires a long time. For example, if the total length of the cable is hundreds of thousands of meters, only the laying operation may take two to three years. Attempts were made to mechanize the cable laying work by hand, but as described above, the cable laying route inside the building was winding up, down, left, and right to avoid obstacles. Therefore, it was difficult to mechanize the cable laying.

[0005]

According to the present invention, there is provided a track pipe made of a non-magnetic material which is piped at a predetermined interval to rollers intermittently arranged along a cable laying route. When compressed air is supplied to the drive-side movable body that moves in the track tube by the pressing force of the compressed air, and the driven-side movable body that is movably mounted on the outer peripheral side of the track tube is magnetically In a state of being integrally connected by the suction force, the driven-side moving body, which is connected to a cable to be laid and moves on the roller,
A cable laying method in which the cable is laid by being moved integrally with the driving-side moving body, and a track pipe made of a non-magnetic material to be piped along a planned cable laying path; A supply source of compressed air to be supplied to the orbital tube, a control means for controlling the supply mode of the compressed air, a sliding portion sliding at least in an airtight state with an inner wall surface of the orbital tube, and a magnetic attraction force. A driving-side moving body that moves in the track pipe when compressed air is supplied to the track pipe, and is movably mounted on the outer peripheral side of the track pipe. When the drive-side movable body mounted in the track tube is in a state of being integrally connected to the drive-side movable body by a magnetic attraction force generated between the drive-side movable body and the coupling portion by the magnetic attraction force. Coupling by magnetic attraction And a driven moving body including an engaging portion with a guide rail member protruded from the outer periphery of the track tube and a connecting portion with a cable to be laid. Laying equipment is provided.

[0006]

When compressed air is supplied to a track pipe made of a non-magnetic material which is piped at a predetermined interval to rollers intermittently arranged along a cable laying route, the compressed air is supplied. The driving side moving body moves in the orbital tube by the pressing force of. The driven side movable body movably mounted on the outer peripheral side of the track tube is integrally connected to the drive side movable body moving in the track tube by magnetic attraction. From the above, the cable whose tip is connected to the driven side moving body is dragged on the aforementioned sequential rollers by the driven side moving body moving integrally with the driving side moving body moving in the track tube. Meanwhile, the cables are laid on successive rollers provided along the planned cable laying route. The cable laid on the roller is moved from the roller to the rack, and the cable is laid on the rack provided along the expected route of the cable.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a cable laying apparatus according to the present invention. FIG. 1 is a block diagram for explaining the overall schematic configuration of the cable laying apparatus of the present invention. In FIG. 1, reference numeral 1 denotes a compressed air source (air compressor), and reference numeral 2 denotes an operation control unit. In the operation control unit 2, V1 to V5 are open / close valves, RV is a pressure adjusting valve, FV is a flow control valve, and VS is a safety valve. Reference numerals 3 to 9 denote pipes used for the passage of compressed air, 10 to 12 are couplings, 13 is a rack (cable mounting shelf) provided along a route where cables are to be laid, and 14, 14,. And a roller spaced at a predetermined distance from the rack arranged along the cable installation route and intermittently arranged along the cable installation route.

The rollers 14, 14... Intermittently arranged along the cable laying route include a cable laying along the cable laying route.
Because it is intended to be easily moved on the roller, any configuration may be used,
As disclosed in Japanese Patent Application No. 4-361872 entitled "Laying device for high-voltage power transmission cable" (Japanese Patent Application Laid-Open No. 6-197428), two rollers arranged side by side at a predetermined interval are used. The two bearing plates that rotatably support both ends of the rotating shaft of the present invention are formed by bisecting a straight line connecting the supporting portions of the rotating shafts of the two rollers in the two bearing plates. On the line, and the rotating shaft projecting above the straight line connecting the supporting portions of the two rollers of the rotating shaft,
Since the cables are moved on the rollers by the traction force because of being supported by the bearings of the bearing plates individually provided on the pedestal, the two bearing plates connected and integrated by the parallel plates are integrated. Oscillating movement in the moving direction of the cable around the rotating shaft supported by the bearings of the bearing plate described above, whereby the cable passing over the rollers generates only a very small kinetic friction with the rollers. It is a desirable embodiment to use a structure that allows the cable to be laid with a small traction force so that it can be moved on the rollers without the roller.

Reference numeral 15 denotes a track tube made of a non-magnetic material. The track tube 15 is piped along a route for laying cables using a guide rail member 16 provided integrally therewith. When compressed air is supplied to the inside of the track tube 15 from the compressed air source 1 via the operation control unit 2, the driving side moving body 1 inserted and mounted in the track tube 15 is provided.
7 (shown by a dotted line in FIG. 1 because it exists in the track tube 15) moves in the track tube 15. On the outer peripheral side of the raceway tube 15, it can move along the raceway tube 15 in a state of being integrally fixed to the driving side moving body 17 inserted and mounted in the raceway tube 15 by magnetic attraction. The driven moving body 18 is mounted. Therefore, the driving side moving body 17 inserted and mounted in the above-mentioned track tube 15 is mounted.
However, when the compressed air is supplied into the track tube 15 and moves within the track tube 15, the driven-side moving member 18 mounted on the outer peripheral side of the track tube 15 also moves integrally with the drive-side moving member 17.

The driven-side moving body 18 includes a coupling portion by magnetic attraction for bringing the driven-side moving body 17 into a single body with the driving-side moving body 17 and a guide rail member protruding from the outer periphery of the track tube 15. 16 (the rollers 66, 6 described later).
8) and a connecting portion 62 with the cable 22 to be laid. In FIG. 1, 1
Numerals 9 and 20 denote magnetic sensors provided at the start end and end end of the track tube 15, and 21 connects the cable 22 to be laid to the connecting portion 62 of the driven side moving body 18. For the rope. Track tube 1 in FIG.
Although 5 is shown as being laid in a straight line, the track pipe 15 actually provided along the planned cable laying path is the planned laying path of the cable winding up, down, left and right in the building. It has a meandering shape along. A pipe made of a non-magnetic material having wear resistance is used as the track pipe 15. For example, a non-magnetic stainless steel pipe may be used as the track pipe 15.

It is a matter of course that the above-mentioned raceway tube 15 should have a thickness such that a required mechanical strength can be obtained. The driving side moving body 17 and the driven side moving body 18 which is movably mounted on the outer peripheral side of the above-mentioned orbital tube 15 are brought into a state in which they are integrally connected by magnetic attraction. The drive-side moving body described above can be formed by minimizing the distance between the coupling part provided by the magnetic attraction force provided on the body 17 and the coupling part provided by the magnetic attraction force provided on the driven-side moving body 18 as much as possible. The thickness of the track tube 15 is multiplied by a predetermined safety factor because the configuration of the coupling portion of the magnetic tube 17 by the magnetic attraction force and the coupling portion of the driven side moving body 18 by the magnetic attraction force can be reduced in size. Required mechanical strength To the extent, it is being as thin as possible.

The driving-side moving body 17 which is inserted and mounted in the raceway tube 15 and moves in the raceway tube 15 when compressed air is supplied into the raceway tube 15 is shown in FIG. , (B). FIG. 3 is a longitudinal sectional view of the driving side moving body 17 whose side view is shown in FIG. In FIGS. 2A and 3, reference numerals 23 and 26 denote base portions of the driving side moving body, and reference numerals 37 and 39 in FIG. 2B denote base portions of the driving side moving body. Base part 2 of each driving side moving body
Nos. 3, 26, 37, and 39 assume that the outer diameter thereof is slightly smaller than the inner diameter of the raceway tube 15 and use a non-magnetic material (for example, a non-magnetic metal material such as stainless steel, a copper zinc alloy, or a synthetic resin). Material).
Then, the base portions 23, 26,
37, 39, a plurality of trochanters 25
Are provided in such a manner that a portion of the trochanters protrude.

The above-described trochanter holding member 46 has a trochanter (ball) 25 rotatably supported by a large number of ball bearings in a hole having a partial shape of a sphere provided in a casing thereof. Configuration. The trochanter 25 rotates in a state of point contact with the inner surface of the raceway tube 15 while rotating the base members 23, 26, 37,
This is for forming a minute gap between the outer peripheral surface of the track tube 39 and the inner peripheral surface of the track tube 15, and a spherical body made of a hard material is used. It is desirable that the trochanter 25 made of a hard material be made of a non-magnetic material, but the trochanter 25 made of a steel ball may be used (as described above). Trochanter holding member 4 with simple configuration
No. 6 is sold by many domestic and foreign manufacturers, for example, using free bearings and other names).

FIG. 3 is a longitudinal sectional view of the driving side moving body 17 whose side view is shown in FIG. 2A, and a plurality of trochanter holding members 46 are respectively mounted on the outer peripheral portion. Base parts 23 and 26 of two driving-side moving bodies having modes
Between the annular magnetic pole plates 32 to 34 made of a soft magnetic material.
And an annular permanent magnet 35, 36 provided with a coupling portion by magnetic attraction. In other words, the driving-side moving body 17 is composed of the annular magnetic pole plates 32 to 34 made of a soft magnetic material and the annular permanent magnets 35 and 36, the base part 26 of the driving-side moving body → the annular magnetic pole plate 34 → the circle. Ring-shaped permanent magnet 36 → Ring-shaped magnetic pole plate 33 → Ring-shaped permanent magnet 35 → Ring-shaped magnetic pole plate 32 → Base 2 of driving side moving body
In the state arranged as shown in FIG. 3, the above-mentioned respective components are connected by a coupling screw 29 made of a non-magnetic material (only the both ends are threaded, and the middle is a simple round bar). I have.

The number of annular magnetic pole plates made of a soft magnetic material and the number of annular permanent magnets used in the construction of the coupling portion by magnetic attraction in the driving side moving body 17 are as follows. It is determined according to the magnitude of the required magnetic attraction. The same applies to the driving-side moving body 17 whose side view is shown in FIG. 2B and the driven-side moving body 18 which will be described later. At the center of the base portions 23 and 26 of the two driving-side moving bodies, screw holes for screwing with the coupling screws 29 are provided. Screws 30 and 3 for preventing the coupling screw 29 from loosening.
A screw hole for screwing the first driving member 1 is provided in the base portions 23 and 26 of the two driving-side moving bodies.

FIG. 2A shows a reference numeral 27 in the driving-side moving body 17 whose side view is shown, and FIG. 2B shows a reference numeral 40 in the driving-side moving body 17 whose side view is shown. Are the sliders made of a non-magnetic elastic material (for example, synthetic rubber).
When the airtightness between the outer peripheral portions of the sliders 27 and 40 and the inner peripheral surface of the track tube 15 is completely maintained, The shape and structure are such that it can be moved satisfactorily. FIG. 3A is a longitudinal sectional view of the driving-side moving body 17 whose side view is shown in FIG. 2A. FIG. Is attached to the base portion 26 of FIG. The slider 40 made of a non-magnetic elastic material in the driving-side moving body 17 whose side view is shown in FIG. 2B is also attached to the base 39 of the driving-side moving body by a screw (not shown). ing.

In the driving-side moving body 17 whose side view is shown in FIG.
The annular magnetic pole plates 41 to 43 made of a soft magnetic material and the annular permanent magnets 44 are provided between the base portions 37 and 39 of the two driving-side moving bodies having the configuration in which the outer peripheral portion 6 is mounted on the outer peripheral portion. ,
45, a coupling portion by magnetic attraction is provided, and the base portion 37 of the driving-side moving body → the annular magnetic pole plate 41 → the annular permanent magnet 44 → the annular magnetic pole plate 4
2 → the annular permanent magnet 45 → the annular magnetic pole plate 43 → in a state of being arranged like the base portion 39 of the driving-side moving body, the above-mentioned components are connected to a non-magnetic material coupling screw (not shown). Threaded at both ends only, and the middle part is just a round bar).
At the center of the base portions 37 and 39 of the two driving-side moving bodies, screw holes for screwing with the coupling screws are provided, and screws for preventing loosening of the coupling screws are screwed. The fact that the screw holes for insertion are provided in the base portions 37 and 39 of the two driving-side moving bodies described above is based on the driving side described with reference to FIGS. This is the same as the case of the moving body 17.

By the way, in carrying out the cable laying method of the present invention, compressed air is supplied into a non-magnetic material track pipe 15 which is piped along the planned cable laying path.
The driving-side moving body 17 that moves in the track tube 15 by the pressing force of the compressed air and the driven-side moving body 18 that is movably mounted on the outer peripheral side of the track tube 18 by magnetic attraction force. In a state of being physically connected, the driven side moving body 18 to which the cable 22 to be laid is connected is moved integrally with the driving side moving body 17 so that the cable is laid. To do this, the driving side moving body 17 that moves in the track tube 15 by the pressing force of the compressed air even when the cable to be laid is loaded, and is movable to the outer peripheral side of the track tube 15 described above. The driven-side moving body 18 attached to the moving body 18 must be moved in a state in which the driven-side moving body 18 and the driven-side moving body 18 are integrally coupled by magnetic attraction. Power is permanent magnet With determined by the volume of,
If the inner diameter of the track tube 15 is determined, and if the volume of the permanent magnet is to be increased, the length of the driving-side moving body 17 is inevitably large.

On the other hand, the cable laying route inside the building is in a state of winding up, down, left and right in order to avoid obstacles as described above. In order to avoid obstacles, the cable laying path in the inside must be bent in the vertical and horizontal directions, but the length of the driving side moving body 17 that moves inside the track tube 15 increases. Therefore, the track tube 15 must be bent with a small curvature, so that the track tube 1 winds up, down, left and right along the cable laying path inside the building.
5 cannot be provided. In order to solve the above-mentioned problem, the cable laying device of the present invention has a drive length that allows the cable to pass through the track pipe having a maximum curvature in the cable laying path inside the building. The necessary traction force is obtained by connecting the required number of the side moving bodies 17 as the unit driving side moving bodies 17.

That is, the convex portion indicated by reference numeral 24 in the driving side moving body 17 whose side view is shown in FIG. 2A and the side view is shown in FIG. 2B. The concave portion indicated by the reference numeral 38 in the driving side moving body 17 indicates a connecting portion between the two driving side moving bodies 17 described above. The connection mode in the connection section is assumed to have a function like a universal joint, so that there is no problem in moving the track pipe 15 at a bent portion, and at the same time, a large load is required. We are trying to respond. In FIG. 2, only the state of connection of the two driving-side moving bodies 17 is shown, but the three or more driving-side moving bodies 17 are assumed to have a connection mode having a function like a universal joint. They may be used in combination. When three or more driving-side moving bodies 17 are connected, the driving-side moving bodies 17 located at both ends are provided with sliders (27, 40) made of a nonmagnetic elastic material (for example, synthetic rubber). The driving side moving body 17 disposed between the driving side moving bodies 17 located at both ends is provided with connecting portions at both ends thereof, and is provided with a non-magnetic elastic material. (For example, synthetic rubber) without a slider is used.

Next, FIG. 4 is a side view of the driven side moving body 18 mounted on the outer peripheral side of the track tube 15, and FIG. 5 is a front view of the driven side moving body 18 (as viewed from the right side in FIG. 4). Figure). In FIG. 4, the track tube 15 and the guide rail member 16 are indicated by imaginary lines. FIG. 4 shows a state in which two driven-side moving bodies 18 are integrally connected by a connecting member 61. That is, 2 shown in FIG.
The driven-side moving body in a state where the two driven-side moving bodies 18 are integrally connected has a configuration in which the driving-side moving body 17 mounted in the track tube 15 connects the two driving-side moving bodies 17. The example of a structure in the case of using corresponding to the thing of an aspect is shown. 6A is a side sectional view of the driven side moving body 18, and FIG. 6B is a front sectional view taken along the line AA in FIG. 6A.

In FIG. 4 (FIGS. 5 to 6), 47, 4
Reference numerals 8, 54, and 55 denote base portions of driven-side moving bodies made of a non-magnetic material (for example, a metal such as non-magnetic stainless steel, copper-zinc alloy, or a synthetic resin). The base portions 47, 48, 54, and 55 have a cross-sectional shape whose inner diameter is slightly larger than the outer diameter of the raceway tube 15.
It is configured as a shape. The bases 47, 48, 54, and 55 of each of the driven-side moving bodies are arranged such that a portion of the plurality of rotators 63 protrudes from the respective inner peripheral surfaces thereof. .. Are provided. The trochanter holding member 64 includes a trochanter (ball) 63 rotatably supported by a number of ball bearings in a hole having a partial shape of a sphere provided in a casing thereof. Have been.

The trochanter 63 rotates while being in point contact with the outer peripheral surface of the track tube 15, and the inner surface of the base portions 47, 48, 54, and 55 of the driven-side moving body and the track tube 15. And a spherical body made of a hard material is used. It is desirable that the trochanter 63 made of a hard material be made of a non-magnetic material, but a trochanter 63 made of a steel ball may be used (as described above). The trochanter holding member 64 having such a structure is sold by many manufacturers in Japan and abroad, for example, by using free bearings and other names. In FIG. 4 showing a side view of the driven side moving body 18 and FIG. 6 (a) showing a longitudinal sectional view, there are shown two parts each having a plurality of trochanter holding members 64 mounted on the outer peripheral portion. Magnetic pole plates 49 to 51 made of a soft magnetic material having a C-shaped cross section and permanent magnets 52 and 53 made of a C-shaped cross section are provided between the base portions 47 and 48 of the driven-side moving body made of a non-magnetic material. Is provided by a magnetic attractive force.

That is, the driven-side moving body 18 is composed of the pole plates 49 to 51 having a C-shaped cross section and the permanent magnets 52 and 53 having a C-shaped cross section. Is a C-shaped pole plate 49 → a C-shaped permanent magnet 52
→ C pole-shaped magnetic pole plate 50 → Permanent magnet 53 having a C-shaped cross section → C-pole plate 51 having a C-shaped cross section → The components are connected by coupling screws 65 and 66 made of non-magnetic material {see FIG. 6 (b)}. Further, the driven side moving body 18
4 showing a side view of a non-magnetic material driven body having two C-shaped cross sections, each having a configuration in which a plurality of trochanter holding members 64 are mounted on the outer peripheral portion. Between the portions 54 and 55, magnetic pole plates 56 to 58 having a C-shaped cross section and made of a soft magnetic material, and permanent magnets 59 and 60 having a C-shaped cross section are provided as base portions 54 of the driven side moving body. Magnetic pole plate 56 with C-shaped cross section → Permanent magnet 59 with C-shaped cross section
Each of the above-described magnetic pole plates 57 having a C-shaped cross section → a permanent magnet 60 having a C-shaped cross section → a magnetic pole plate 58 having a C-shaped cross section → The components are connected by coupling screws 65 and 66 made of non-magnetic material {see FIG. 6 (b)}.

A guide rail member 16 protruding from the outer periphery of the track tube 15 is provided on the upper surface of the base portions 47, 48, 54 and 55 of the driven side moving body 18 having a C-shaped cross section. A guide rail member 1 protruding from the outer periphery of the above-mentioned track tube 15 so as to function as an engagement portion with the guide rail member 1.
Rollers 66 and 68 are rotatably mounted on the rotating shafts 65 and 67 such that the roller 6 sandwiches the roller 6 from both sides. Accordingly, the driven-side moving body 18 having a C-shaped cross section as a whole is configured such that the guide rail member 16 protruding from the track tube 15 is
In a state guided by the guide rail member 16 while being clamped at 68, the vehicle travels on the outer peripheral side of the track tube 15 integrally with the drive-side moving body 17 that runs in the track tube 15.

FIG. 7 shows the magnetic structure of the drive-side moving body 17 located inside the track tube 15 and the driven-side moving body 18 located on the outer circumference of the track tube 15. FIG. 7 is a diagram for explaining a coupling state by a coupling portion due to an attractive force. FIG. The state where the magnetic pole plates 51, 50, and 49 face each other with opposite polarities is clearly shown. In this state, the driving side moving body 17 and the driven side moving body 18
It is in a strongly coupled state with the track tube 15 interposed. Then, with the track tube 15 interposed, the magnetic attraction between the driving side moving body 17 and the driven side moving body 18 is reduced by F.
In this case, if the cable laying device is operated in a state in which the driving force applied to the driving side moving body 17 by the compressed air is smaller than F, the cable laying device of the present invention performs well. Will do it.

The above-described driven side moving body 18 is provided with a cable discharge portion as shown by reference numeral 69 in FIGS. 5, 8 and 9 on one side thereof. .
The cable discharge section 69 is configured to operate the cable laying device as described above to operate the cable laid on the successive rollers 14, 14,... Which are intermittently installed along the cable laying path. 22 is moved to the rack 13 when the driven side moving body 18 is moved. Reference numeral 70 denotes a board of a cable discharge section. The board 70 of the cable discharge section is provided with two sets of roller mounting sections 71 provided so as to have an interval in a direction inclined with respect to the moving direction of the driven side moving body 18. , 72.

The roller mounting portion 71 is provided with columns 77 and 78 on both sides thereof, supports a rotatable lower roller 73 below the column, and supports the column 77 above the column 77. An upper roller 74 is provided in which the base of the rotating shaft 81 is supported so as to be able to move up and down. Further, the roller mounting portion 72 has columns 79, 80 on both sides.
And a lower roller 7 rotatable thereunder.
5 is supported, and a support 7 is provided above the support 79.
9 is provided with an upper roller 76 whose base of the rotating shaft 82 is supported so as to be able to move up and down. Upper rollers 74, 7 provided above the roller mounting portions 71, 72, respectively.
A screw is cut at the tip of the outer end of each of the rotary shafts 81, 82, and wing nuts 83, 84 are screwed into the screw portions. Grooves 85, 86 for supporting the outer ends of the rotating shafts 81, 82 of the upper rollers 74, 76 are provided at the upper ends of the columns 78, 80 in the roller mounting portions 71, 72, respectively. I have.

The wing nuts 83, 84 screwed into the rotation shafts 81, 82 of the upper rollers 74, 76 in the roller mounting portions 71, 72 of the cable discharge portion 69.
And the rotation shaft 8 of the upper rollers 74 and 76 described above is loosened.
8 is rotated upward in the state shown in FIG. 8, and the end of the cable already disposed on the rollers 14, 14. , 72, the outer ends of the rotating shafts 81, 82 of the upper rollers 74, 76 are connected to the columns 78, 80 of the roller mounting portions 71, 72. The upper rollers 74, 76 are respectively fitted to the roller mounting portions 71, 7 by fitting them into grooves 85, 86 provided at the upper end of the roller, and then turning wing nuts 83, 84.
The support in 2 is supported.

After the above-mentioned state, compressed air is supplied into the track tube 15 so that the driving side moving body 17 and the driven side moving body 18 are supplied.
When the cable 22 is sequentially placed on the rollers 14, 14,..., The roller mounting portion 71 of the cable discharging portion 69 is moved outward from the outer end of the rollers 14, 14,. Because they are provided so as to be positioned, they are displaced to a space outside the outer ends of the rollers 14, 14,..., So that they are moved onto the rack 13 from above the rollers 14, 14,. . As described above, in the cable laying device of the present invention, by the cable laying operation as described above, the cable is already laid on the rollers 14, 14... The cable in the state can be automatically moved onto the rack 13 by supplying compressed air into the track tube 15 and moving the driving-side moving body 17 and the driven-side moving body 18 during operation.

The cable discharging operation by the cable discharging section 69 is performed by first placing the first cable on the rollers 14, 14... Disposed in the section from the beginning to the end of the cable laying route. The laying operation is completed,
In order to arrange the second cable along the planned cable laying route, in order to return from the end to the start end of the cable laying section, compressed air is supplied into the track pipe 15 to be driven by the driving side moving body 17. When moving the side moving body 18, the first cable laid on the rollers 14, 14 arranged in the section from the starting end to the end of the cable laying scheduled path is transferred to the rollers 14, 14. ... may be moved onto the rack 13 from above, or
Rollers 14, 14 in which the second cable is arranged in the section from the starting end to the end of the cable laying route.
Simultaneously with the operation of laying on the first cable, the first cable laid on the rollers 14, 14, which has already been arranged in the section from the beginning to the end of the cable laying scheduled path, is placed on the rollers 14, 14,. From above to the rack 13.

As described above, the track pipe 15 must be piped in a section from the beginning to the end of the winding route of the meandering cable in the building. It is most preferable that piping can be performed with one continuous track pipe 15 over the entire section. However, it is impossible to manufacture the track pipe 15 having such a shape in terms of cost. Therefore, a straight track pipe, a track pipe having various lengths such as a curved track pipe, etc. are prepared in advance, and the track pipes of the various units are combined according to the situation of the construction site, It is desirable that a single track pipe 15 can be provided continuously over the entire section from the start end to the end of the cable laying route. Next, FIGS.
With reference to FIG. 2, a description will be given of the structure of the track tube of each unit, a connecting means of the track tube of each unit, and the like. FIG. 8 is a perspective view showing an example of the configuration of a track tube in a unit used for the start end of the cable laying route or the terminal portion of the cable laying route. In FIG. Driven side moving body 18
Is shown.

FIG. 9 shows an example of the configuration of a unit track tube used at the beginning of a cable installation route or at the end of a cable installation route, and a part of a unit track tube connected thereto. FIG. 5 is an exploded perspective view illustrating a connection-side member used when connecting a unit track tube, and showing a driving-side movable body 17 and the like inserted into the track tube.
8 and 9, reference numeral 87 denotes a pipe connection part (air coupler) for supplying compressed air to the track pipe 15 or discharging compressed air in the track pipe 15, and 88 denotes a movement suppressing plate. The movement suppressing plate 88 is for preventing the driven moving body 18 from moving outside the permissible moving range. FIG. 9 shows a connecting portion 62 for connecting the distal end portion of the cable 22 pulled by the driven-side moving body 18 in a state where it is detached from the driven-side moving body 18. , 92, and is screwed into a screw hole (not shown) on the lower surface of the driven side moving body 18 to be fixed to the driven side moving body 18.

By the way, when the track pipes 15, 15... Of each unit are sequentially connected to perform piping in a section from a starting end to a terminating end of a winding route of a meandering cable in a building, a track pipe of each unit is required. If there is a step on the inner peripheral surface of the raceway tube at the connection portion of 15, 15,..., There arises a problem that the driving-side moving body 17 moving in the raceway tube 15 cannot move smoothly. Therefore, when connecting the track tubes 15, 15,... Of each unit, as shown in FIGS.
For the raceway tube 15 having an inner diameter of D2 at 1 and an area of length L is set as a connection end, and the outer diameter D3 of the area of the length L of the connection end is calculated as D1>D3> D2. When the specific outer diameter D3 has the relationship of
A slope T is formed at a boundary portion where the outer diameter D1 changes to the outer diameter D3 in the region of the above, and the length is slightly less than twice the length L of the connection end, the outer diameter is D1, and the inner diameter is The orbital tubes 15 are sequentially connected by using a connecting tube 93 which is D3 and has slopes -T which change from the outer diameter D1 to the outer diameter D3 at both ends.

As described above, the track tube 15 of each unit is made of a non-magnetic material (for example, non-magnetic stainless steel).
Since the guide rail members 16 made of steel are protruded, the guide rail members 16 must also be connected in a good connection manner at the connection portions of the track pipes 15, 15,... Of each unit as described above. Therefore, the track tube 1 of each unit described above
With respect to the guide rail members 16 at the connection portions of 5, 15,..., The guide rail members 1 provided on the track pipes 15, 15,.
6 are connected smoothly. Track tube 15, 1 of each unit described above
5 are provided with connection flanges 95 above the ends of the guide rail members 16 provided on the guide rail members 16.
96 are provided. In addition, the connecting guide rail member 94
The connection flanges 99 are provided on the upper portions of both ends of the connection bolts, respectively.
7 are provided.

When connecting the track tubes 15, 15... Of each unit, first, the connection ends of the two track tubes 15 whose outer diameter is D1 and whose inner diameter is D2 are connected. The outer diameter of D3 is less than twice the length L, the outer diameter is D1, the inner diameter is D3, and the slope -T at both ends changes from the outer diameter D1 to the outer diameter D3. Connecting pipe 93 constituted by
Connecting flanges provided above the ends of the guide rail members 16 which are inserted from both ends of the guide rail member 16 and are projected from the two track tubes 15 to be connected. The connecting flanges 99 provided at the upper portions of both ends of the connecting guide rail member 94 are disposed between the connecting flanges 95 and the holes 96 of the connecting flange 95 and the holes 100 of the connecting flange 99 described above. Together with the hole 9 described above.
The nut 98 is screwed into the tip of the connecting bolt 97 by passing through the through holes 6 and 100.

When the connecting bolt 97 is rotated and tightened tightly, the two track tubes 15 to be connected are connected.
The guide rail members 16 projecting from each other are connected in a state where they are firmly connected by a guide rail member 94 for connection. At the same time, the portion of the outer ends of the connection ends of the two track pipes 15 having the outer diameter D3 advances inside the connection pipe 93 while sliding on the inner peripheral surface of the connection pipe 93, and the two pipes to be connected are connected. Of the orbital tube 15 is firmly struck. In this state, the outer diameter D of the area of the length L of the connection end of the two track tubes 15 to be connected in this state.
The slope T provided at the boundary where the outside diameter changes from 1 to D3 and the slope -T changing from the outside diameter D1 to the outside diameter D3 formed at the end of the connecting pipe 93 are strongly eaten. Then, the two track tubes 15 to be connected are connected in a completely airtight state.

When the two guide tubes 15 are connected in a completely airtight state as described above, the end of the connecting tube 93 may protrude slightly outward from the outer peripheral surface of the guide tube 15. However, if only the trochanter passing portion of the driven side moving body 18 is removed from the protruding portion, the driven side moving body 1
8 can be prevented from causing any trouble. The track tube 15 can be used repeatedly at various construction sites, but the connecting tube 93 may be considered as a consumable that cannot be used next time after it has been used once.

As described above, on the rollers 14, 14...
.. Are connected by sequentially connecting the track tubes 15, 15,... In FIG.
14 is at a predetermined distance from the rack 13 which is arranged along the route where the cable is to be laid,
The rollers 14 are intermittently arranged along the planned cable laying path. The rollers 14, 14,... Are rotating shafts 103 of two rollers 101, 102 arranged side by side at a predetermined interval. , 104 are rotatably supported by the two bearing plates 105, 106, and the two rollers 101, 10 in the two bearing plates 105, 106.
Projecting on a vertical bisector of a straight line connecting the supporting portions of the two rotating shafts 103 and 104 and above the straight line connecting the supporting portions of the rotating shafts 103 and 104 of the two rollers 101 and 102. The rotating shaft 107 is supported by bearings of bearing plates 109 individually provided on the pedestal 108, and the cable 22 is pulled by the pulling force to cause the rollers 101,
The two bearing plates 105 and 106 which are connected and integrated by the connecting plate when moving on the
Performs a swinging motion in the moving direction of the cable 22 around the rotation shaft 107 supported by the bearing of the bearing plate 108, whereby the cable 22 passing over the rollers 101 and 102 is The rollers 101 and 10 are in a state where only a very small dynamic friction is generated between the rollers 101 and 102.
2 so as to be able to move on.

Each of the rollers 14, 14,... Has its base 108 fixed to a mounting member 110, and the mounting member 110 is fixed to the side wall of the rack 13 by mounting screws 111, so that the rollers 14, 14,. Will be installed. Reference rollers 112, 113 are guide rollers provided upright at both ends of the rollers 14, 14,.... Mounting member 1 described above
At the front end 115a of the support member 115 of the track tube attached to the upper surface of the pipe 10 by screws 114, a mounting hole 11 provided in a guide rail member 16 protruding from the track tube 15 is provided.
6 (see FIG. 19),
.. On the rollers 14, 14... Arranged along the cable laying scheduled path in order of track tubes 15, 15,.
And the piping of the track pipe 15 is performed.

When the cable is laid by the cable laying apparatus constructed as described above, the driving side moving body 17 and the driving side moving body 17 are magnetically connected to the starting end of the cable laying scheduled path. After the driven-side moving body 18 integrally connected by the suction force is positioned, the connecting portion 62 of the driven-side moving body 18 and the starting end of the cable 22 placed on the roller 14 are connected by the rope 21. Then, after the compressed air source (air compressor) 1 is operated, a predetermined air pressure is set by the pressure adjusting valve RV. Next, with the open / close valves V3, V5 closed, the open / close valves V1, V2, V
4 is controlled by the control unit 2 to open. Next, the flow control valve FV is gradually opened, and the driven side moving body 1 integrally connected to the driving side moving body 17 by magnetic attraction.
Adjust the speed of 8. As the driven-side moving body 18 moves, the cable 22 on the roller 14 is fed out, and the output from the rotary encoder provided on the rotation shaft of the roller 14 at the start end of the scheduled installation section of the cable 22 is output. It is provided to the control unit 2.

The control unit 2 knows the position of the driven side moving body 18 from the output from the rotary encoder,
When the position of the driven side moving body 18 reaches near the end of the planned laying section of the cable 22, the opening / closing valves V1 and V4 are closed and the opening / closing valve V5 is opened, and the driving side moving body 17 is integrated with the driving side moving body 17 by magnetic attraction. Driven mobile unit 1 that is dynamically connected
8 and stop. By closing the opening / closing valve V4, the driving side moving body 1 running in the track tube 15 is closed.
7 is braked, and the driven side moving body 18 is integrally connected to the driving side moving body 17 by magnetic attraction.
Stops near the end of the planned laying section of the cable 22.

Next, the driving side moving body 17 and the driven side moving body 18 stopped near the end of the scheduled laying section of the cable 22.
The control unit 2 controls the opening / closing valves V1, V3, and V5 to open the cables 22 near the beginning of the scheduled installation section of the cable 22. Next, the flow rate control valve FV is gradually opened to adjust the speed of the driven side moving body 18 integrally connected to the driving side moving body 17 by magnetic attraction. When the driven-side moving body 18 reaches the vicinity of the magnetic sensor 19 near the start end of the scheduled installation section of the cable 22, an output from the magnetic sensor 19 is given to the control unit 2, whereby the control unit 2
Then, the on-off valves V1 and V5 are closed, and the on-off valve V4
Is opened to stop the driving side moving body 17 and the driven side moving body 18. When the opening / closing valve V5 is closed, the drive-side moving body 17 and the driven-side moving body 18 are braked.

During the reciprocating operation of the cable 22 in the scheduled laying section, the cable 22 placed on the rollers 14, 14,.
In order to move the
As described above, the operation of the cable discharge unit 69 provided on one side of the cable is performed, and the operation of the cable laying device causes the sequential rollers installed intermittently along the cable laying route. The operation of moving the cables 22 placed on the racks 13 on the rack 13 when the driven side moving body 18 is moved is performed as shown in FIG.

[0045]

As is apparent from the above description, the present invention relates to a case in which a pipe is provided at a predetermined interval with respect to a roller intermittently arranged along a route for laying a cable. The compressed air is supplied into the orbital tube made of non-magnetic material, and the driving side moving body moves in the orbital tube by the pressing force of the compressed air, thereby being movably mounted on the outer peripheral side of the orbital tube. The driven side moving body
A cable that moves in a state of being integrally coupled to the driving side moving body moving in the orbital tube by magnetic attraction, and whose tip is connected to the driven side moving body,
While being dragged on the above-described sequential rollers by the driven-side movable body that is moving integrally with the drive-side movable body that moves in the track tube, on the sequential rollers provided along the planned cable laying path. The cable laid on the roller is moved from the roller to the rack, and the cable is laid on the rack provided along the planned cable laying route. However, according to the present invention, the cable can be easily laid along the winding route of the meandering cable in the building without the need for manpower as in the related art. Can be solved well.

[Brief description of the drawings]

FIG. 1 is a block diagram for explaining an overall schematic configuration of a cable laying apparatus according to the present invention.

FIG. 2 is a side view of a driving side moving body.

FIG. 3 is a vertical side view of a driving-side movable body.

FIG. 4 is a side view of a driven side moving body.

FIG. 5 is a front view of a combination of a driving side moving body and a driven side moving body.

FIG. 6 is a vertical sectional side view of a driven side moving body and a vertical sectional front view of a driven side moving body.

FIG. 7 is an explanatory diagram of a mode of coupling between a driving side moving body and a driven side moving body by magnetic green attraction.

FIG. 8 is a perspective view of a driven-side moving body.

FIG. 9 is an exploded perspective view for explaining a combination of a driving side moving body, a driven side moving body, and a track tube.

FIG. 10 is an exploded perspective view for explaining assembling of a track tube.

FIG. 11 is a perspective view for explaining assembling of a track tube.

FIG. 12 is an exploded longitudinal side view for explaining assembling of a track tube.

FIG. 13 is an exploded side view for explaining the assembling of the track tube.

FIG. 14 is a side view for explaining the assembling of the track tube.

FIG. 15 is a vertical sectional side view for explaining assembling of a track tube.

FIG. 16 is a perspective view for explaining a schematic configuration of a part of the cable laying device of the present invention.

[Explanation of symbols]

1 ... Compressed air source (air compressor), 2 ... Control unit for operation, V1 to V5 ... Open / close valve, RV ... Pressure adjustment valve,
FV: Flow control valve, VS: Safety valve, 3-9 ...
Pipes used for passage of compressed air, 10-12
... Coupling, 13 ... Rack (cable mounting shelf) provided along the planned cable laying route, 14 ... Roller, 15 ... Track tube, 16 ... Guide rail member, 17 ... Drive side moving body, 18 ... Follow Side moving body, 69: cable discharge section, 70: substrate of cable discharge section, 93: connecting pipe, 94
… Guide rail member for connection,

Claims (11)

(57) [Claims] When a compressed air is supplied into a non-magnetic material track pipe which is piped along a cable laying planned path, a driving side moving body which moves in the track pipe by the pressing force of the compressed air. The cable to be laid is connected to a driven side movable body movably mounted on the outer peripheral side of the track tube by magnetic attraction. A cable laying method, wherein a cable is laid by moving a driven side moving body integrally with the driving side moving body. 2. When compressed air is supplied into a non-magnetic material track pipe which is piped at a predetermined interval to rollers intermittently arranged along a cable laying scheduled path. In addition, the driving-side moving body that moves in the track tube by the pressing force of the compressed air and the driven-side moving body movably mounted on the outer peripheral side of the track tube are integrally formed by magnetic attraction. In the coupled state, the driven-side moving body to which the cable to be laid on the roller is connected is connected to the driven-side moving body as one body to lay the cable. Cable laying method to perform 3. A track tube made of a non-magnetic material to be piped along a route for laying a cable, a sliding portion sliding at least in an airtight state with an inner wall surface of the track tube, and a magnetic attraction force. A driving-side movable body that is configured to include a coupling portion and is movably mounted in the track tube; and a coupling portion that is magnetically attracted by the driving-side movable body that is mounted in the track tube. The coupling between the drive side moving body and the coupling portion formed by magnetic attraction force and the guide rail member protruding from the outer circumference of the track tube are formed by the magnetic attraction force generated between the two. Laying of a cable comprising an engaging portion and a connection portion with a cable to be laid, and comprising a driven moving body movably mounted on the outer peripheral side of the track tube; apparatus. 4. A track pipe made of a non-magnetic material to be piped along a route for laying a cable, a supply source of compressed air to be supplied to the track pipe, and control means for a supply mode of the compressed air. And at least a sliding portion that slides in an airtight state with the inner wall surface of the track tube and a coupling portion by magnetic attraction, and when compressed air is supplied to the track tube. A driving-side moving body that moves in the track tube, and a coupling portion that is magnetically attracted by the driving-side moving body mounted in the track tube when movably mounted on the outer peripheral side of the track tube. And a guide rail member protruding from the outer periphery of the above-mentioned track tube so as to be integrally coupled to the driving side moving body by a magnetic attraction force generated between the coupling member and the orbital tube. And the part to be laid A cable laying device comprising: a driven moving body including a connection portion with a cable. 5. The cable according to claim 3, wherein the coupling portion by magnetic attraction uses a driving-side moving body and a driven-side moving body that are constituted by a laminated structure of a permanent magnet and a magnetic pole plate. Laying equipment. 6. The apparatus according to claim 3, wherein a plurality of driving-side moving bodies are connected, and the same number of driven-side moving bodies as the number of driving-side moving bodies are connected. Cable laying equipment. 7. A driving-side moving body, wherein a plurality of rotators that are in point contact with the inner wall of the track tube are provided on an outer peripheral portion of the driving-side moving body. Item 6. A cable laying device according to any one of Items 6. 8. A driven side moving body comprising a plurality of rotators, each of which is in point contact with the outer wall of a track tube, provided on an inner peripheral portion of the driven side moving body. The cable laying device according to claim 6. 9. A track tube having an outer diameter of D1 and an inner diameter of D2, setting a region having a length L as a connection end,
The outer diameter D3 of the region of the length L of the connection end is defined as D1> D
When a specific outer diameter D3 in a relationship of 3> D2 is satisfied, the outer diameter D1 is equal to the outer diameter D3 in the region of the length L of the connection end.
A slope is formed at a boundary portion that changes to a length less than twice the length L of the connection end, the outer diameter is D1, the inner diameter is D3, and the outer diameter is formed at both ends. 4. The cable laying apparatus according to claim 3, wherein the track pipes are sequentially connected by a connecting pipe having a slope changing from D1 to an outer diameter D3. 10. A cable is attached to a driven moving body movably mounted on an outer peripheral side of a track tube at positions spaced apart in a direction non-parallel to a direction in which the center line of the driven moving body extends. 4. The cable laying device according to claim 3, further comprising a cable discharge portion provided with a guide member for guiding. 11. A cable is attached to a driven moving body movably mounted on the outer peripheral side of a track tube at positions spaced apart in a direction non-parallel to a direction in which a center line of the driven moving body extends. 4. A guide member in a cable discharge portion provided with a guide member for guiding is formed using a roller.
Or the cable laying device of claim 10.